From 3b06518afec24626d17835bf3373331ced3b1bcd Mon Sep 17 00:00:00 2001 From: Mummakill Date: Wed, 23 Nov 2016 15:38:37 +0200 Subject: [PATCH] Fix multiline numbered list function --- debug/simplemde.css | 6 - debug/simplemde.js | 17350 ++++++++++++++++++++------------------- dist/simplemde.min.css | 2 +- dist/simplemde.min.js | 18 +- 4 files changed, 8813 insertions(+), 8563 deletions(-) diff --git a/debug/simplemde.css b/debug/simplemde.css index fe778da..b9ea1ea 100644 --- a/debug/simplemde.css +++ b/debug/simplemde.css @@ -212,9 +212,6 @@ div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;} display: inline-block; vertical-align: top; margin-bottom: -30px; - /* Hack to make IE7 behave */ - *zoom:1; - *display:inline; } .CodeMirror-gutter-wrapper { position: absolute; @@ -333,9 +330,6 @@ div.CodeMirror-dragcursors { background: rgba(255, 255, 0, .4); } -/* IE7 hack to prevent it from returning funny offsetTops on the spans */ -.CodeMirror span { *vertical-align: text-bottom; } - /* Used to force a border model for a node */ .cm-force-border { padding-right: .1px; } diff --git a/debug/simplemde.js b/debug/simplemde.js index 694f142..3fbfb3a 100644 --- a/debug/simplemde.js +++ b/debug/simplemde.js @@ -7,6 +7,7 @@ (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.SimpleMDE = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o 0) { throw new Error('Invalid string. Length must be a multiple of 4') } @@ -40,9 +35,19 @@ function toByteArray (b64) { // represent one byte // if there is only one, then the three characters before it represent 2 bytes // this is just a cheap hack to not do indexOf twice - placeHolders = b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0 + return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0 +} +function byteLength (b64) { // base64 is 4/3 + up to two characters of the original data + return b64.length * 3 / 4 - placeHoldersCount(b64) +} + +function toByteArray (b64) { + var i, j, l, tmp, placeHolders, arr + var len = b64.length + placeHolders = placeHoldersCount(b64) + arr = new Arr(len * 3 / 4 - placeHolders) // if there are placeholders, only get up to the last complete 4 chars @@ -286,6 +291,8 @@ if (Buffer.TYPED_ARRAY_SUPPORT) { function assertSize (size) { if (typeof size !== 'number') { throw new TypeError('"size" argument must be a number') + } else if (size < 0) { + throw new RangeError('"size" argument must not be negative') } } @@ -349,12 +356,20 @@ function fromString (that, string, encoding) { var length = byteLength(string, encoding) | 0 that = createBuffer(that, length) - that.write(string, encoding) + var actual = that.write(string, encoding) + + if (actual !== length) { + // Writing a hex string, for example, that contains invalid characters will + // cause everything after the first invalid character to be ignored. (e.g. + // 'abxxcd' will be treated as 'ab') + that = that.slice(0, actual) + } + return that } function fromArrayLike (that, array) { - var length = checked(array.length) | 0 + var length = array.length < 0 ? 0 : checked(array.length) | 0 that = createBuffer(that, length) for (var i = 0; i < length; i += 1) { that[i] = array[i] & 255 @@ -423,7 +438,7 @@ function fromObject (that, obj) { } function checked (length) { - // Note: cannot use `length < kMaxLength` here because that fails when + // Note: cannot use `length < kMaxLength()` here because that fails when // length is NaN (which is otherwise coerced to zero.) if (length >= kMaxLength()) { throw new RangeError('Attempt to allocate Buffer larger than maximum ' + @@ -472,9 +487,9 @@ Buffer.isEncoding = function isEncoding (encoding) { case 'utf8': case 'utf-8': case 'ascii': + case 'latin1': case 'binary': case 'base64': - case 'raw': case 'ucs2': case 'ucs-2': case 'utf16le': @@ -535,9 +550,8 @@ function byteLength (string, encoding) { for (;;) { switch (encoding) { case 'ascii': + case 'latin1': case 'binary': - case 'raw': - case 'raws': return len case 'utf8': case 'utf-8': @@ -610,8 +624,9 @@ function slowToString (encoding, start, end) { case 'ascii': return asciiSlice(this, start, end) + case 'latin1': case 'binary': - return binarySlice(this, start, end) + return latin1Slice(this, start, end) case 'base64': return base64Slice(this, start, end) @@ -663,6 +678,20 @@ Buffer.prototype.swap32 = function swap32 () { return this } +Buffer.prototype.swap64 = function swap64 () { + var len = this.length + if (len % 8 !== 0) { + throw new RangeError('Buffer size must be a multiple of 64-bits') + } + for (var i = 0; i < len; i += 8) { + swap(this, i, i + 7) + swap(this, i + 1, i + 6) + swap(this, i + 2, i + 5) + swap(this, i + 3, i + 4) + } + return this +} + Buffer.prototype.toString = function toString () { var length = this.length | 0 if (length === 0) return '' @@ -745,7 +774,73 @@ Buffer.prototype.compare = function compare (target, start, end, thisStart, this return 0 } -function arrayIndexOf (arr, val, byteOffset, encoding) { +// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`, +// OR the last index of `val` in `buffer` at offset <= `byteOffset`. +// +// Arguments: +// - buffer - a Buffer to search +// - val - a string, Buffer, or number +// - byteOffset - an index into `buffer`; will be clamped to an int32 +// - encoding - an optional encoding, relevant is val is a string +// - dir - true for indexOf, false for lastIndexOf +function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) { + // Empty buffer means no match + if (buffer.length === 0) return -1 + + // Normalize byteOffset + if (typeof byteOffset === 'string') { + encoding = byteOffset + byteOffset = 0 + } else if (byteOffset > 0x7fffffff) { + byteOffset = 0x7fffffff + } else if (byteOffset < -0x80000000) { + byteOffset = -0x80000000 + } + byteOffset = +byteOffset // Coerce to Number. + if (isNaN(byteOffset)) { + // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer + byteOffset = dir ? 0 : (buffer.length - 1) + } + + // Normalize byteOffset: negative offsets start from the end of the buffer + if (byteOffset < 0) byteOffset = buffer.length + byteOffset + if (byteOffset >= buffer.length) { + if (dir) return -1 + else byteOffset = buffer.length - 1 + } else if (byteOffset < 0) { + if (dir) byteOffset = 0 + else return -1 + } + + // Normalize val + if (typeof val === 'string') { + val = Buffer.from(val, encoding) + } + + // Finally, search either indexOf (if dir is true) or lastIndexOf + if (Buffer.isBuffer(val)) { + // Special case: looking for empty string/buffer always fails + if (val.length === 0) { + return -1 + } + return arrayIndexOf(buffer, val, byteOffset, encoding, dir) + } else if (typeof val === 'number') { + val = val & 0xFF // Search for a byte value [0-255] + if (Buffer.TYPED_ARRAY_SUPPORT && + typeof Uint8Array.prototype.indexOf === 'function') { + if (dir) { + return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset) + } else { + return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset) + } + } + return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir) + } + + throw new TypeError('val must be string, number or Buffer') +} + +function arrayIndexOf (arr, val, byteOffset, encoding, dir) { var indexSize = 1 var arrLength = arr.length var valLength = val.length @@ -772,62 +867,47 @@ function arrayIndexOf (arr, val, byteOffset, encoding) { } } - var foundIndex = -1 - for (var i = byteOffset; i < arrLength; ++i) { - if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) { - if (foundIndex === -1) foundIndex = i - if (i - foundIndex + 1 === valLength) return foundIndex * indexSize - } else { - if (foundIndex !== -1) i -= i - foundIndex - foundIndex = -1 + var i + if (dir) { + var foundIndex = -1 + for (i = byteOffset; i < arrLength; i++) { + if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) { + if (foundIndex === -1) foundIndex = i + if (i - foundIndex + 1 === valLength) return foundIndex * indexSize + } else { + if (foundIndex !== -1) i -= i - foundIndex + foundIndex = -1 + } + } + } else { + if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength + for (i = byteOffset; i >= 0; i--) { + var found = true + for (var j = 0; j < valLength; j++) { + if (read(arr, i + j) !== read(val, j)) { + found = false + break + } + } + if (found) return i } } return -1 } -Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) { - if (typeof byteOffset === 'string') { - encoding = byteOffset - byteOffset = 0 - } else if (byteOffset > 0x7fffffff) { - byteOffset = 0x7fffffff - } else if (byteOffset < -0x80000000) { - byteOffset = -0x80000000 - } - byteOffset >>= 0 - - if (this.length === 0) return -1 - if (byteOffset >= this.length) return -1 - - // Negative offsets start from the end of the buffer - if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0) - - if (typeof val === 'string') { - val = Buffer.from(val, encoding) - } - - if (Buffer.isBuffer(val)) { - // special case: looking for empty string/buffer always fails - if (val.length === 0) { - return -1 - } - return arrayIndexOf(this, val, byteOffset, encoding) - } - if (typeof val === 'number') { - if (Buffer.TYPED_ARRAY_SUPPORT && Uint8Array.prototype.indexOf === 'function') { - return Uint8Array.prototype.indexOf.call(this, val, byteOffset) - } - return arrayIndexOf(this, [ val ], byteOffset, encoding) - } - - throw new TypeError('val must be string, number or Buffer') -} - Buffer.prototype.includes = function includes (val, byteOffset, encoding) { return this.indexOf(val, byteOffset, encoding) !== -1 } +Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) { + return bidirectionalIndexOf(this, val, byteOffset, encoding, true) +} + +Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) { + return bidirectionalIndexOf(this, val, byteOffset, encoding, false) +} + function hexWrite (buf, string, offset, length) { offset = Number(offset) || 0 var remaining = buf.length - offset @@ -842,7 +922,7 @@ function hexWrite (buf, string, offset, length) { // must be an even number of digits var strLen = string.length - if (strLen % 2 !== 0) throw new Error('Invalid hex string') + if (strLen % 2 !== 0) throw new TypeError('Invalid hex string') if (length > strLen / 2) { length = strLen / 2 @@ -863,7 +943,7 @@ function asciiWrite (buf, string, offset, length) { return blitBuffer(asciiToBytes(string), buf, offset, length) } -function binaryWrite (buf, string, offset, length) { +function latin1Write (buf, string, offset, length) { return asciiWrite(buf, string, offset, length) } @@ -925,8 +1005,9 @@ Buffer.prototype.write = function write (string, offset, length, encoding) { case 'ascii': return asciiWrite(this, string, offset, length) + case 'latin1': case 'binary': - return binaryWrite(this, string, offset, length) + return latin1Write(this, string, offset, length) case 'base64': // Warning: maxLength not taken into account in base64Write @@ -1067,7 +1148,7 @@ function asciiSlice (buf, start, end) { return ret } -function binarySlice (buf, start, end) { +function latin1Slice (buf, start, end) { var ret = '' end = Math.min(buf.length, end) @@ -2075,8 +2156,8 @@ module.exports = CodeMirrorSpellChecker; })(function(CodeMirror) { "use strict"; - var listRE = /^(\s*)(>[> ]*|[*+-]\s|(\d+)([.)]))(\s*)/, - emptyListRE = /^(\s*)(>[> ]*|[*+-]|(\d+)[.)])(\s*)$/, + var listRE = /^(\s*)(>[> ]*|- \[[x ]\]\s|[*+-]\s|(\d+)([.)]))(\s*)/, + emptyListRE = /^(\s*)(>[> ]*|- \[[x ]\]|[*+-]|(\d+)[.)])(\s*)$/, unorderedListRE = /[*+-]\s/; CodeMirror.commands.newlineAndIndentContinueMarkdownList = function(cm) { @@ -2103,7 +2184,7 @@ module.exports = CodeMirrorSpellChecker; } else { var indent = match[1], after = match[5]; var bullet = unorderedListRE.test(match[2]) || match[2].indexOf(">") >= 0 - ? match[2] + ? match[2].replace("x", " ") : (parseInt(match[3], 10) + 1) + match[4]; replacements[i] = "\n" + indent + bullet + after; @@ -2331,4988 +2412,7704 @@ CodeMirror.overlayMode = function(base, overlay, combine) { // You can find some technical background for some of the code below // at http://marijnhaverbeke.nl/blog/#cm-internals . -(function(mod) { - if (typeof exports == "object" && typeof module == "object") // CommonJS - module.exports = mod(); - else if (typeof define == "function" && define.amd) // AMD - return define([], mod); - else // Plain browser env - (this || window).CodeMirror = mod(); -})(function() { - "use strict"; +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : + typeof define === 'function' && define.amd ? define(factory) : + (global.CodeMirror = factory()); +}(this, (function () { 'use strict'; - // BROWSER SNIFFING +// Kludges for bugs and behavior differences that can't be feature +// detected are enabled based on userAgent etc sniffing. +var userAgent = navigator.userAgent +var platform = navigator.platform - // Kludges for bugs and behavior differences that can't be feature - // detected are enabled based on userAgent etc sniffing. - var userAgent = navigator.userAgent; - var platform = navigator.platform; +var gecko = /gecko\/\d/i.test(userAgent) +var ie_upto10 = /MSIE \d/.test(userAgent) +var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent) +var ie = ie_upto10 || ie_11up +var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]) +var webkit = /WebKit\//.test(userAgent) +var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent) +var chrome = /Chrome\//.test(userAgent) +var presto = /Opera\//.test(userAgent) +var safari = /Apple Computer/.test(navigator.vendor) +var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent) +var phantom = /PhantomJS/.test(userAgent) - var gecko = /gecko\/\d/i.test(userAgent); - var ie_upto10 = /MSIE \d/.test(userAgent); - var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent); - var ie = ie_upto10 || ie_11up; - var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]); - var webkit = /WebKit\//.test(userAgent); - var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent); - var chrome = /Chrome\//.test(userAgent); - var presto = /Opera\//.test(userAgent); - var safari = /Apple Computer/.test(navigator.vendor); - var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent); - var phantom = /PhantomJS/.test(userAgent); +var ios = /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent) +// This is woefully incomplete. Suggestions for alternative methods welcome. +var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent) +var mac = ios || /Mac/.test(platform) +var chromeOS = /\bCrOS\b/.test(userAgent) +var windows = /win/i.test(platform) - var ios = /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent); - // This is woefully incomplete. Suggestions for alternative methods welcome. - var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent); - var mac = ios || /Mac/.test(platform); - var chromeOS = /\bCrOS\b/.test(userAgent); - var windows = /win/i.test(platform); +var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/) +if (presto_version) { presto_version = Number(presto_version[1]) } +if (presto_version && presto_version >= 15) { presto = false; webkit = true } +// Some browsers use the wrong event properties to signal cmd/ctrl on OS X +var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11)) +var captureRightClick = gecko || (ie && ie_version >= 9) - var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/); - if (presto_version) presto_version = Number(presto_version[1]); - if (presto_version && presto_version >= 15) { presto = false; webkit = true; } - // Some browsers use the wrong event properties to signal cmd/ctrl on OS X - var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11)); - var captureRightClick = gecko || (ie && ie_version >= 9); +function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") } - // Optimize some code when these features are not used. - var sawReadOnlySpans = false, sawCollapsedSpans = false; +var rmClass = function(node, cls) { + var current = node.className + var match = classTest(cls).exec(current) + if (match) { + var after = current.slice(match.index + match[0].length) + node.className = current.slice(0, match.index) + (after ? match[1] + after : "") + } +} - // EDITOR CONSTRUCTOR +function removeChildren(e) { + for (var count = e.childNodes.length; count > 0; --count) + { e.removeChild(e.firstChild) } + return e +} - // A CodeMirror instance represents an editor. This is the object - // that user code is usually dealing with. +function removeChildrenAndAdd(parent, e) { + return removeChildren(parent).appendChild(e) +} - function CodeMirror(place, options) { - if (!(this instanceof CodeMirror)) return new CodeMirror(place, options); +function elt(tag, content, className, style) { + var e = document.createElement(tag) + if (className) { e.className = className } + if (style) { e.style.cssText = style } + if (typeof content == "string") { e.appendChild(document.createTextNode(content)) } + else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]) } } + return e +} - this.options = options = options ? copyObj(options) : {}; - // Determine effective options based on given values and defaults. - copyObj(defaults, options, false); - setGuttersForLineNumbers(options); +var range +if (document.createRange) { range = function(node, start, end, endNode) { + var r = document.createRange() + r.setEnd(endNode || node, end) + r.setStart(node, start) + return r +} } +else { range = function(node, start, end) { + var r = document.body.createTextRange() + try { r.moveToElementText(node.parentNode) } + catch(e) { return r } + r.collapse(true) + r.moveEnd("character", end) + r.moveStart("character", start) + return r +} } - var doc = options.value; - if (typeof doc == "string") doc = new Doc(doc, options.mode, null, options.lineSeparator); - this.doc = doc; +function contains(parent, child) { + if (child.nodeType == 3) // Android browser always returns false when child is a textnode + { child = child.parentNode } + if (parent.contains) + { return parent.contains(child) } + do { + if (child.nodeType == 11) { child = child.host } + if (child == parent) { return true } + } while (child = child.parentNode) +} - var input = new CodeMirror.inputStyles[options.inputStyle](this); - var display = this.display = new Display(place, doc, input); - display.wrapper.CodeMirror = this; - updateGutters(this); - themeChanged(this); - if (options.lineWrapping) - this.display.wrapper.className += " CodeMirror-wrap"; - if (options.autofocus && !mobile) display.input.focus(); - initScrollbars(this); +function activeElt() { + // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement. + // IE < 10 will throw when accessed while the page is loading or in an iframe. + // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable. + var activeElement + try { + activeElement = document.activeElement + } catch(e) { + activeElement = document.body || null + } + while (activeElement && activeElement.root && activeElement.root.activeElement) + { activeElement = activeElement.root.activeElement } + return activeElement +} - this.state = { - keyMaps: [], // stores maps added by addKeyMap - overlays: [], // highlighting overlays, as added by addOverlay - modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info - overwrite: false, - delayingBlurEvent: false, - focused: false, - suppressEdits: false, // used to disable editing during key handlers when in readOnly mode - pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll - selectingText: false, - draggingText: false, - highlight: new Delayed(), // stores highlight worker timeout - keySeq: null, // Unfinished key sequence - specialChars: null - }; +function addClass(node, cls) { + var current = node.className + if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls } +} +function joinClasses(a, b) { + var as = a.split(" ") + for (var i = 0; i < as.length; i++) + { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i] } } + return b +} - var cm = this; +var selectInput = function(node) { node.select() } +if (ios) // Mobile Safari apparently has a bug where select() is broken. + { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length } } +else if (ie) // Suppress mysterious IE10 errors + { selectInput = function(node) { try { node.select() } catch(_e) {} } } - // Override magic textarea content restore that IE sometimes does - // on our hidden textarea on reload - if (ie && ie_version < 11) setTimeout(function() { cm.display.input.reset(true); }, 20); +function bind(f) { + var args = Array.prototype.slice.call(arguments, 1) + return function(){return f.apply(null, args)} +} - registerEventHandlers(this); - ensureGlobalHandlers(); +function copyObj(obj, target, overwrite) { + if (!target) { target = {} } + for (var prop in obj) + { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop))) + { target[prop] = obj[prop] } } + return target +} - startOperation(this); - this.curOp.forceUpdate = true; - attachDoc(this, doc); +// Counts the column offset in a string, taking tabs into account. +// Used mostly to find indentation. +function countColumn(string, end, tabSize, startIndex, startValue) { + if (end == null) { + end = string.search(/[^\s\u00a0]/) + if (end == -1) { end = string.length } + } + for (var i = startIndex || 0, n = startValue || 0;;) { + var nextTab = string.indexOf("\t", i) + if (nextTab < 0 || nextTab >= end) + { return n + (end - i) } + n += nextTab - i + n += tabSize - (n % tabSize) + i = nextTab + 1 + } +} - if ((options.autofocus && !mobile) || cm.hasFocus()) - setTimeout(bind(onFocus, this), 20); - else - onBlur(this); +function Delayed() {this.id = null} +Delayed.prototype.set = function(ms, f) { + clearTimeout(this.id) + this.id = setTimeout(f, ms) +} - for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt)) - optionHandlers[opt](this, options[opt], Init); - maybeUpdateLineNumberWidth(this); - if (options.finishInit) options.finishInit(this); - for (var i = 0; i < initHooks.length; ++i) initHooks[i](this); - endOperation(this); - // Suppress optimizelegibility in Webkit, since it breaks text - // measuring on line wrapping boundaries. - if (webkit && options.lineWrapping && - getComputedStyle(display.lineDiv).textRendering == "optimizelegibility") - display.lineDiv.style.textRendering = "auto"; +function indexOf(array, elt) { + for (var i = 0; i < array.length; ++i) + { if (array[i] == elt) { return i } } + return -1 +} + +// Number of pixels added to scroller and sizer to hide scrollbar +var scrollerGap = 30 + +// Returned or thrown by various protocols to signal 'I'm not +// handling this'. +var Pass = {toString: function(){return "CodeMirror.Pass"}} + +// Reused option objects for setSelection & friends +var sel_dontScroll = {scroll: false}; +var sel_mouse = {origin: "*mouse"}; +var sel_move = {origin: "+move"}; +// The inverse of countColumn -- find the offset that corresponds to +// a particular column. +function findColumn(string, goal, tabSize) { + for (var pos = 0, col = 0;;) { + var nextTab = string.indexOf("\t", pos) + if (nextTab == -1) { nextTab = string.length } + var skipped = nextTab - pos + if (nextTab == string.length || col + skipped >= goal) + { return pos + Math.min(skipped, goal - col) } + col += nextTab - pos + col += tabSize - (col % tabSize) + pos = nextTab + 1 + if (col >= goal) { return pos } + } +} + +var spaceStrs = [""] +function spaceStr(n) { + while (spaceStrs.length <= n) + { spaceStrs.push(lst(spaceStrs) + " ") } + return spaceStrs[n] +} + +function lst(arr) { return arr[arr.length-1] } + +function map(array, f) { + var out = [] + for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i) } + return out +} + +function insertSorted(array, value, score) { + var pos = 0, priority = score(value) + while (pos < array.length && score(array[pos]) <= priority) { pos++ } + array.splice(pos, 0, value) +} + +function nothing() {} + +function createObj(base, props) { + var inst + if (Object.create) { + inst = Object.create(base) + } else { + nothing.prototype = base + inst = new nothing() + } + if (props) { copyObj(props, inst) } + return inst +} + +var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/ +function isWordCharBasic(ch) { + return /\w/.test(ch) || ch > "\x80" && + (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)) +} +function isWordChar(ch, helper) { + if (!helper) { return isWordCharBasic(ch) } + if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true } + return helper.test(ch) +} + +function isEmpty(obj) { + for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } } + return true +} + +// Extending unicode characters. A series of a non-extending char + +// any number of extending chars is treated as a single unit as far +// as editing and measuring is concerned. This is not fully correct, +// since some scripts/fonts/browsers also treat other configurations +// of code points as a group. +var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/ +function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) } + +// The display handles the DOM integration, both for input reading +// and content drawing. It holds references to DOM nodes and +// display-related state. + +function Display(place, doc, input) { + var d = this + this.input = input + + // Covers bottom-right square when both scrollbars are present. + d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler") + d.scrollbarFiller.setAttribute("cm-not-content", "true") + // Covers bottom of gutter when coverGutterNextToScrollbar is on + // and h scrollbar is present. + d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler") + d.gutterFiller.setAttribute("cm-not-content", "true") + // Will contain the actual code, positioned to cover the viewport. + d.lineDiv = elt("div", null, "CodeMirror-code") + // Elements are added to these to represent selection and cursors. + d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1") + d.cursorDiv = elt("div", null, "CodeMirror-cursors") + // A visibility: hidden element used to find the size of things. + d.measure = elt("div", null, "CodeMirror-measure") + // When lines outside of the viewport are measured, they are drawn in this. + d.lineMeasure = elt("div", null, "CodeMirror-measure") + // Wraps everything that needs to exist inside the vertically-padded coordinate system + d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], + null, "position: relative; outline: none") + // Moved around its parent to cover visible view. + d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative") + // Set to the height of the document, allowing scrolling. + d.sizer = elt("div", [d.mover], "CodeMirror-sizer") + d.sizerWidth = null + // Behavior of elts with overflow: auto and padding is + // inconsistent across browsers. This is used to ensure the + // scrollable area is big enough. + d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;") + // Will contain the gutters, if any. + d.gutters = elt("div", null, "CodeMirror-gutters") + d.lineGutter = null + // Actual scrollable element. + d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll") + d.scroller.setAttribute("tabIndex", "-1") + // The element in which the editor lives. + d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror") + + // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported) + if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0 } + if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true } + + if (place) { + if (place.appendChild) { place.appendChild(d.wrapper) } + else { place(d.wrapper) } } - // DISPLAY CONSTRUCTOR + // Current rendered range (may be bigger than the view window). + d.viewFrom = d.viewTo = doc.first + d.reportedViewFrom = d.reportedViewTo = doc.first + // Information about the rendered lines. + d.view = [] + d.renderedView = null + // Holds info about a single rendered line when it was rendered + // for measurement, while not in view. + d.externalMeasured = null + // Empty space (in pixels) above the view + d.viewOffset = 0 + d.lastWrapHeight = d.lastWrapWidth = 0 + d.updateLineNumbers = null - // The display handles the DOM integration, both for input reading - // and content drawing. It holds references to DOM nodes and - // display-related state. + d.nativeBarWidth = d.barHeight = d.barWidth = 0 + d.scrollbarsClipped = false - function Display(place, doc, input) { - var d = this; - this.input = input; + // Used to only resize the line number gutter when necessary (when + // the amount of lines crosses a boundary that makes its width change) + d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null + // Set to true when a non-horizontal-scrolling line widget is + // added. As an optimization, line widget aligning is skipped when + // this is false. + d.alignWidgets = false - // Covers bottom-right square when both scrollbars are present. - d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); - d.scrollbarFiller.setAttribute("cm-not-content", "true"); - // Covers bottom of gutter when coverGutterNextToScrollbar is on - // and h scrollbar is present. - d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); - d.gutterFiller.setAttribute("cm-not-content", "true"); - // Will contain the actual code, positioned to cover the viewport. - d.lineDiv = elt("div", null, "CodeMirror-code"); - // Elements are added to these to represent selection and cursors. - d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); - d.cursorDiv = elt("div", null, "CodeMirror-cursors"); - // A visibility: hidden element used to find the size of things. - d.measure = elt("div", null, "CodeMirror-measure"); - // When lines outside of the viewport are measured, they are drawn in this. - d.lineMeasure = elt("div", null, "CodeMirror-measure"); - // Wraps everything that needs to exist inside the vertically-padded coordinate system - d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], - null, "position: relative; outline: none"); - // Moved around its parent to cover visible view. - d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative"); - // Set to the height of the document, allowing scrolling. - d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); - d.sizerWidth = null; - // Behavior of elts with overflow: auto and padding is - // inconsistent across browsers. This is used to ensure the - // scrollable area is big enough. - d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;"); - // Will contain the gutters, if any. - d.gutters = elt("div", null, "CodeMirror-gutters"); - d.lineGutter = null; - // Actual scrollable element. - d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); - d.scroller.setAttribute("tabIndex", "-1"); - // The element in which the editor lives. - d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror"); + d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null - // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported) - if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } - if (!webkit && !(gecko && mobile)) d.scroller.draggable = true; + // Tracks the maximum line length so that the horizontal scrollbar + // can be kept static when scrolling. + d.maxLine = null + d.maxLineLength = 0 + d.maxLineChanged = false - if (place) { - if (place.appendChild) place.appendChild(d.wrapper); - else place(d.wrapper); + // Used for measuring wheel scrolling granularity + d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null + + // True when shift is held down. + d.shift = false + + // Used to track whether anything happened since the context menu + // was opened. + d.selForContextMenu = null + + d.activeTouch = null + + input.init(d) +} + +// Find the line object corresponding to the given line number. +function getLine(doc, n) { + n -= doc.first + if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") } + var chunk = doc + while (!chunk.lines) { + for (var i = 0;; ++i) { + var child = chunk.children[i], sz = child.chunkSize() + if (n < sz) { chunk = child; break } + n -= sz } - - // Current rendered range (may be bigger than the view window). - d.viewFrom = d.viewTo = doc.first; - d.reportedViewFrom = d.reportedViewTo = doc.first; - // Information about the rendered lines. - d.view = []; - d.renderedView = null; - // Holds info about a single rendered line when it was rendered - // for measurement, while not in view. - d.externalMeasured = null; - // Empty space (in pixels) above the view - d.viewOffset = 0; - d.lastWrapHeight = d.lastWrapWidth = 0; - d.updateLineNumbers = null; - - d.nativeBarWidth = d.barHeight = d.barWidth = 0; - d.scrollbarsClipped = false; - - // Used to only resize the line number gutter when necessary (when - // the amount of lines crosses a boundary that makes its width change) - d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; - // Set to true when a non-horizontal-scrolling line widget is - // added. As an optimization, line widget aligning is skipped when - // this is false. - d.alignWidgets = false; - - d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; - - // Tracks the maximum line length so that the horizontal scrollbar - // can be kept static when scrolling. - d.maxLine = null; - d.maxLineLength = 0; - d.maxLineChanged = false; - - // Used for measuring wheel scrolling granularity - d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; - - // True when shift is held down. - d.shift = false; - - // Used to track whether anything happened since the context menu - // was opened. - d.selForContextMenu = null; - - d.activeTouch = null; - - input.init(d); } + return chunk.lines[n] +} - // STATE UPDATES +// Get the part of a document between two positions, as an array of +// strings. +function getBetween(doc, start, end) { + var out = [], n = start.line + doc.iter(start.line, end.line + 1, function (line) { + var text = line.text + if (n == end.line) { text = text.slice(0, end.ch) } + if (n == start.line) { text = text.slice(start.ch) } + out.push(text) + ++n + }) + return out +} +// Get the lines between from and to, as array of strings. +function getLines(doc, from, to) { + var out = [] + doc.iter(from, to, function (line) { out.push(line.text) }) // iter aborts when callback returns truthy value + return out +} - // Used to get the editor into a consistent state again when options change. +// Update the height of a line, propagating the height change +// upwards to parent nodes. +function updateLineHeight(line, height) { + var diff = height - line.height + if (diff) { for (var n = line; n; n = n.parent) { n.height += diff } } +} - function loadMode(cm) { - cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption); - resetModeState(cm); +// Given a line object, find its line number by walking up through +// its parent links. +function lineNo(line) { + if (line.parent == null) { return null } + var cur = line.parent, no = indexOf(cur.lines, line) + for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { + for (var i = 0;; ++i) { + if (chunk.children[i] == cur) { break } + no += chunk.children[i].chunkSize() + } } + return no + cur.first +} - function resetModeState(cm) { - cm.doc.iter(function(line) { - if (line.stateAfter) line.stateAfter = null; - if (line.styles) line.styles = null; - }); - cm.doc.frontier = cm.doc.first; - startWorker(cm, 100); - cm.state.modeGen++; - if (cm.curOp) regChange(cm); +// Find the line at the given vertical position, using the height +// information in the document tree. +function lineAtHeight(chunk, h) { + var n = chunk.first + outer: do { + for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) { + var child = chunk.children[i$1], ch = child.height + if (h < ch) { chunk = child; continue outer } + h -= ch + n += child.chunkSize() + } + return n + } while (!chunk.lines) + var i = 0 + for (; i < chunk.lines.length; ++i) { + var line = chunk.lines[i], lh = line.height + if (h < lh) { break } + h -= lh } + return n + i +} - function wrappingChanged(cm) { - if (cm.options.lineWrapping) { - addClass(cm.display.wrapper, "CodeMirror-wrap"); - cm.display.sizer.style.minWidth = ""; - cm.display.sizerWidth = null; +function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size} + +function lineNumberFor(options, i) { + return String(options.lineNumberFormatter(i + options.firstLineNumber)) +} + +// A Pos instance represents a position within the text. +function Pos (line, ch) { + if (!(this instanceof Pos)) { return new Pos(line, ch) } + this.line = line; this.ch = ch +} + +// Compare two positions, return 0 if they are the same, a negative +// number when a is less, and a positive number otherwise. +function cmp(a, b) { return a.line - b.line || a.ch - b.ch } + +function copyPos(x) {return Pos(x.line, x.ch)} +function maxPos(a, b) { return cmp(a, b) < 0 ? b : a } +function minPos(a, b) { return cmp(a, b) < 0 ? a : b } + +// Most of the external API clips given positions to make sure they +// actually exist within the document. +function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))} +function clipPos(doc, pos) { + if (pos.line < doc.first) { return Pos(doc.first, 0) } + var last = doc.first + doc.size - 1 + if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) } + return clipToLen(pos, getLine(doc, pos.line).text.length) +} +function clipToLen(pos, linelen) { + var ch = pos.ch + if (ch == null || ch > linelen) { return Pos(pos.line, linelen) } + else if (ch < 0) { return Pos(pos.line, 0) } + else { return pos } +} +function clipPosArray(doc, array) { + var out = [] + for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]) } + return out +} + +// Optimize some code when these features are not used. +var sawReadOnlySpans = false; +var sawCollapsedSpans = false; +function seeReadOnlySpans() { + sawReadOnlySpans = true +} + +function seeCollapsedSpans() { + sawCollapsedSpans = true +} + +// TEXTMARKER SPANS + +function MarkedSpan(marker, from, to) { + this.marker = marker + this.from = from; this.to = to +} + +// Search an array of spans for a span matching the given marker. +function getMarkedSpanFor(spans, marker) { + if (spans) { for (var i = 0; i < spans.length; ++i) { + var span = spans[i] + if (span.marker == marker) { return span } + } } +} +// Remove a span from an array, returning undefined if no spans are +// left (we don't store arrays for lines without spans). +function removeMarkedSpan(spans, span) { + var r + for (var i = 0; i < spans.length; ++i) + { if (spans[i] != span) { (r || (r = [])).push(spans[i]) } } + return r +} +// Add a span to a line. +function addMarkedSpan(line, span) { + line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span] + span.marker.attachLine(line) +} + +// Used for the algorithm that adjusts markers for a change in the +// document. These functions cut an array of spans at a given +// character position, returning an array of remaining chunks (or +// undefined if nothing remains). +function markedSpansBefore(old, startCh, isInsert) { + var nw + if (old) { for (var i = 0; i < old.length; ++i) { + var span = old[i], marker = span.marker + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh) + if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) { + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh) + ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to)) + } + } } + return nw +} +function markedSpansAfter(old, endCh, isInsert) { + var nw + if (old) { for (var i = 0; i < old.length; ++i) { + var span = old[i], marker = span.marker + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh) + if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) { + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh) + ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh, + span.to == null ? null : span.to - endCh)) + } + } } + return nw +} + +// Given a change object, compute the new set of marker spans that +// cover the line in which the change took place. Removes spans +// entirely within the change, reconnects spans belonging to the +// same marker that appear on both sides of the change, and cuts off +// spans partially within the change. Returns an array of span +// arrays with one element for each line in (after) the change. +function stretchSpansOverChange(doc, change) { + if (change.full) { return null } + var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans + var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans + if (!oldFirst && !oldLast) { return null } + + var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0 + // Get the spans that 'stick out' on both sides + var first = markedSpansBefore(oldFirst, startCh, isInsert) + var last = markedSpansAfter(oldLast, endCh, isInsert) + + // Next, merge those two ends + var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0) + if (first) { + // Fix up .to properties of first + for (var i = 0; i < first.length; ++i) { + var span = first[i] + if (span.to == null) { + var found = getMarkedSpanFor(last, span.marker) + if (!found) { span.to = startCh } + else if (sameLine) { span.to = found.to == null ? null : found.to + offset } + } + } + } + if (last) { + // Fix up .from in last (or move them into first in case of sameLine) + for (var i$1 = 0; i$1 < last.length; ++i$1) { + var span$1 = last[i$1] + if (span$1.to != null) { span$1.to += offset } + if (span$1.from == null) { + var found$1 = getMarkedSpanFor(first, span$1.marker) + if (!found$1) { + span$1.from = offset + if (sameLine) { (first || (first = [])).push(span$1) } + } + } else { + span$1.from += offset + if (sameLine) { (first || (first = [])).push(span$1) } + } + } + } + // Make sure we didn't create any zero-length spans + if (first) { first = clearEmptySpans(first) } + if (last && last != first) { last = clearEmptySpans(last) } + + var newMarkers = [first] + if (!sameLine) { + // Fill gap with whole-line-spans + var gap = change.text.length - 2, gapMarkers + if (gap > 0 && first) + { for (var i$2 = 0; i$2 < first.length; ++i$2) + { if (first[i$2].to == null) + { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)) } } } + for (var i$3 = 0; i$3 < gap; ++i$3) + { newMarkers.push(gapMarkers) } + newMarkers.push(last) + } + return newMarkers +} + +// Remove spans that are empty and don't have a clearWhenEmpty +// option of false. +function clearEmptySpans(spans) { + for (var i = 0; i < spans.length; ++i) { + var span = spans[i] + if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false) + { spans.splice(i--, 1) } + } + if (!spans.length) { return null } + return spans +} + +// Used to 'clip' out readOnly ranges when making a change. +function removeReadOnlyRanges(doc, from, to) { + var markers = null + doc.iter(from.line, to.line + 1, function (line) { + if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { + var mark = line.markedSpans[i].marker + if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) + { (markers || (markers = [])).push(mark) } + } } + }) + if (!markers) { return null } + var parts = [{from: from, to: to}] + for (var i = 0; i < markers.length; ++i) { + var mk = markers[i], m = mk.find(0) + for (var j = 0; j < parts.length; ++j) { + var p = parts[j] + if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue } + var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to) + if (dfrom < 0 || !mk.inclusiveLeft && !dfrom) + { newParts.push({from: p.from, to: m.from}) } + if (dto > 0 || !mk.inclusiveRight && !dto) + { newParts.push({from: m.to, to: p.to}) } + parts.splice.apply(parts, newParts) + j += newParts.length - 1 + } + } + return parts +} + +// Connect or disconnect spans from a line. +function detachMarkedSpans(line) { + var spans = line.markedSpans + if (!spans) { return } + for (var i = 0; i < spans.length; ++i) + { spans[i].marker.detachLine(line) } + line.markedSpans = null +} +function attachMarkedSpans(line, spans) { + if (!spans) { return } + for (var i = 0; i < spans.length; ++i) + { spans[i].marker.attachLine(line) } + line.markedSpans = spans +} + +// Helpers used when computing which overlapping collapsed span +// counts as the larger one. +function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 } +function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 } + +// Returns a number indicating which of two overlapping collapsed +// spans is larger (and thus includes the other). Falls back to +// comparing ids when the spans cover exactly the same range. +function compareCollapsedMarkers(a, b) { + var lenDiff = a.lines.length - b.lines.length + if (lenDiff != 0) { return lenDiff } + var aPos = a.find(), bPos = b.find() + var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b) + if (fromCmp) { return -fromCmp } + var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b) + if (toCmp) { return toCmp } + return b.id - a.id +} + +// Find out whether a line ends or starts in a collapsed span. If +// so, return the marker for that span. +function collapsedSpanAtSide(line, start) { + var sps = sawCollapsedSpans && line.markedSpans, found + if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { + sp = sps[i] + if (sp.marker.collapsed && (start ? sp.from : sp.to) == null && + (!found || compareCollapsedMarkers(found, sp.marker) < 0)) + { found = sp.marker } + } } + return found +} +function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) } +function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) } + +// Test whether there exists a collapsed span that partially +// overlaps (covers the start or end, but not both) of a new span. +// Such overlap is not allowed. +function conflictingCollapsedRange(doc, lineNo, from, to, marker) { + var line = getLine(doc, lineNo) + var sps = sawCollapsedSpans && line.markedSpans + if (sps) { for (var i = 0; i < sps.length; ++i) { + var sp = sps[i] + if (!sp.marker.collapsed) { continue } + var found = sp.marker.find(0) + var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker) + var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker) + if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue } + if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) || + fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0)) + { return true } + } } +} + +// A visual line is a line as drawn on the screen. Folding, for +// example, can cause multiple logical lines to appear on the same +// visual line. This finds the start of the visual line that the +// given line is part of (usually that is the line itself). +function visualLine(line) { + var merged + while (merged = collapsedSpanAtStart(line)) + { line = merged.find(-1, true).line } + return line +} + +// Returns an array of logical lines that continue the visual line +// started by the argument, or undefined if there are no such lines. +function visualLineContinued(line) { + var merged, lines + while (merged = collapsedSpanAtEnd(line)) { + line = merged.find(1, true).line + ;(lines || (lines = [])).push(line) + } + return lines +} + +// Get the line number of the start of the visual line that the +// given line number is part of. +function visualLineNo(doc, lineN) { + var line = getLine(doc, lineN), vis = visualLine(line) + if (line == vis) { return lineN } + return lineNo(vis) +} + +// Get the line number of the start of the next visual line after +// the given line. +function visualLineEndNo(doc, lineN) { + if (lineN > doc.lastLine()) { return lineN } + var line = getLine(doc, lineN), merged + if (!lineIsHidden(doc, line)) { return lineN } + while (merged = collapsedSpanAtEnd(line)) + { line = merged.find(1, true).line } + return lineNo(line) + 1 +} + +// Compute whether a line is hidden. Lines count as hidden when they +// are part of a visual line that starts with another line, or when +// they are entirely covered by collapsed, non-widget span. +function lineIsHidden(doc, line) { + var sps = sawCollapsedSpans && line.markedSpans + if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { + sp = sps[i] + if (!sp.marker.collapsed) { continue } + if (sp.from == null) { return true } + if (sp.marker.widgetNode) { continue } + if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) + { return true } + } } +} +function lineIsHiddenInner(doc, line, span) { + if (span.to == null) { + var end = span.marker.find(1, true) + return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker)) + } + if (span.marker.inclusiveRight && span.to == line.text.length) + { return true } + for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) { + sp = line.markedSpans[i] + if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to && + (sp.to == null || sp.to != span.from) && + (sp.marker.inclusiveLeft || span.marker.inclusiveRight) && + lineIsHiddenInner(doc, line, sp)) { return true } + } +} + +// Find the height above the given line. +function heightAtLine(lineObj) { + lineObj = visualLine(lineObj) + + var h = 0, chunk = lineObj.parent + for (var i = 0; i < chunk.lines.length; ++i) { + var line = chunk.lines[i] + if (line == lineObj) { break } + else { h += line.height } + } + for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { + for (var i$1 = 0; i$1 < p.children.length; ++i$1) { + var cur = p.children[i$1] + if (cur == chunk) { break } + else { h += cur.height } + } + } + return h +} + +// Compute the character length of a line, taking into account +// collapsed ranges (see markText) that might hide parts, and join +// other lines onto it. +function lineLength(line) { + if (line.height == 0) { return 0 } + var len = line.text.length, merged, cur = line + while (merged = collapsedSpanAtStart(cur)) { + var found = merged.find(0, true) + cur = found.from.line + len += found.from.ch - found.to.ch + } + cur = line + while (merged = collapsedSpanAtEnd(cur)) { + var found$1 = merged.find(0, true) + len -= cur.text.length - found$1.from.ch + cur = found$1.to.line + len += cur.text.length - found$1.to.ch + } + return len +} + +// Find the longest line in the document. +function findMaxLine(cm) { + var d = cm.display, doc = cm.doc + d.maxLine = getLine(doc, doc.first) + d.maxLineLength = lineLength(d.maxLine) + d.maxLineChanged = true + doc.iter(function (line) { + var len = lineLength(line) + if (len > d.maxLineLength) { + d.maxLineLength = len + d.maxLine = line + } + }) +} + +// BIDI HELPERS + +function iterateBidiSections(order, from, to, f) { + if (!order) { return f(from, to, "ltr") } + var found = false + for (var i = 0; i < order.length; ++i) { + var part = order[i] + if (part.from < to && part.to > from || from == to && part.to == from) { + f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr") + found = true + } + } + if (!found) { f(from, to, "ltr") } +} + +function bidiLeft(part) { return part.level % 2 ? part.to : part.from } +function bidiRight(part) { return part.level % 2 ? part.from : part.to } + +function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0 } +function lineRight(line) { + var order = getOrder(line) + if (!order) { return line.text.length } + return bidiRight(lst(order)) +} + +function compareBidiLevel(order, a, b) { + var linedir = order[0].level + if (a == linedir) { return true } + if (b == linedir) { return false } + return a < b +} + +var bidiOther = null +function getBidiPartAt(order, pos) { + var found + bidiOther = null + for (var i = 0; i < order.length; ++i) { + var cur = order[i] + if (cur.from < pos && cur.to > pos) { return i } + if ((cur.from == pos || cur.to == pos)) { + if (found == null) { + found = i + } else if (compareBidiLevel(order, cur.level, order[found].level)) { + if (cur.from != cur.to) { bidiOther = found } + return i + } else { + if (cur.from != cur.to) { bidiOther = i } + return found + } + } + } + return found +} + +function moveInLine(line, pos, dir, byUnit) { + if (!byUnit) { return pos + dir } + do { pos += dir } + while (pos > 0 && isExtendingChar(line.text.charAt(pos))) + return pos +} + +// This is needed in order to move 'visually' through bi-directional +// text -- i.e., pressing left should make the cursor go left, even +// when in RTL text. The tricky part is the 'jumps', where RTL and +// LTR text touch each other. This often requires the cursor offset +// to move more than one unit, in order to visually move one unit. +function moveVisually(line, start, dir, byUnit) { + var bidi = getOrder(line) + if (!bidi) { return moveLogically(line, start, dir, byUnit) } + var pos = getBidiPartAt(bidi, start), part = bidi[pos] + var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit) + + for (;;) { + if (target > part.from && target < part.to) { return target } + if (target == part.from || target == part.to) { + if (getBidiPartAt(bidi, target) == pos) { return target } + part = bidi[pos += dir] + return (dir > 0) == part.level % 2 ? part.to : part.from } else { - rmClass(cm.display.wrapper, "CodeMirror-wrap"); - findMaxLine(cm); - } - estimateLineHeights(cm); - regChange(cm); - clearCaches(cm); - setTimeout(function(){updateScrollbars(cm);}, 100); - } - - // Returns a function that estimates the height of a line, to use as - // first approximation until the line becomes visible (and is thus - // properly measurable). - function estimateHeight(cm) { - var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; - var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); - return function(line) { - if (lineIsHidden(cm.doc, line)) return 0; - - var widgetsHeight = 0; - if (line.widgets) for (var i = 0; i < line.widgets.length; i++) { - if (line.widgets[i].height) widgetsHeight += line.widgets[i].height; - } - - if (wrapping) - return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th; + part = bidi[pos += dir] + if (!part) { return null } + if ((dir > 0) == part.level % 2) + { target = moveInLine(line, part.to, -1, byUnit) } else - return widgetsHeight + th; - }; + { target = moveInLine(line, part.from, 1, byUnit) } + } + } +} + +function moveLogically(line, start, dir, byUnit) { + var target = start + dir + if (byUnit) { while (target > 0 && isExtendingChar(line.text.charAt(target))) { target += dir } } + return target < 0 || target > line.text.length ? null : target +} + +// Bidirectional ordering algorithm +// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm +// that this (partially) implements. + +// One-char codes used for character types: +// L (L): Left-to-Right +// R (R): Right-to-Left +// r (AL): Right-to-Left Arabic +// 1 (EN): European Number +// + (ES): European Number Separator +// % (ET): European Number Terminator +// n (AN): Arabic Number +// , (CS): Common Number Separator +// m (NSM): Non-Spacing Mark +// b (BN): Boundary Neutral +// s (B): Paragraph Separator +// t (S): Segment Separator +// w (WS): Whitespace +// N (ON): Other Neutrals + +// Returns null if characters are ordered as they appear +// (left-to-right), or an array of sections ({from, to, level} +// objects) in the order in which they occur visually. +var bidiOrdering = (function() { + // Character types for codepoints 0 to 0xff + var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN" + // Character types for codepoints 0x600 to 0x6ff + var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm" + function charType(code) { + if (code <= 0xf7) { return lowTypes.charAt(code) } + else if (0x590 <= code && code <= 0x5f4) { return "R" } + else if (0x600 <= code && code <= 0x6ed) { return arabicTypes.charAt(code - 0x600) } + else if (0x6ee <= code && code <= 0x8ac) { return "r" } + else if (0x2000 <= code && code <= 0x200b) { return "w" } + else if (code == 0x200c) { return "b" } + else { return "L" } } - function estimateLineHeights(cm) { - var doc = cm.doc, est = estimateHeight(cm); - doc.iter(function(line) { - var estHeight = est(line); - if (estHeight != line.height) updateLineHeight(line, estHeight); - }); + var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/ + var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/ + // Browsers seem to always treat the boundaries of block elements as being L. + var outerType = "L" + + function BidiSpan(level, from, to) { + this.level = level + this.from = from; this.to = to } - function themeChanged(cm) { - cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + - cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-"); - clearCaches(cm); - } + return function(str) { + if (!bidiRE.test(str)) { return false } + var len = str.length, types = [] + for (var i = 0; i < len; ++i) + { types.push(charType(str.charCodeAt(i))) } - function guttersChanged(cm) { - updateGutters(cm); - regChange(cm); - setTimeout(function(){alignHorizontally(cm);}, 20); - } + // W1. Examine each non-spacing mark (NSM) in the level run, and + // change the type of the NSM to the type of the previous + // character. If the NSM is at the start of the level run, it will + // get the type of sor. + for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) { + var type = types[i$1] + if (type == "m") { types[i$1] = prev } + else { prev = type } + } - // Rebuild the gutter elements, ensure the margin to the left of the - // code matches their width. - function updateGutters(cm) { - var gutters = cm.display.gutters, specs = cm.options.gutters; - removeChildren(gutters); - for (var i = 0; i < specs.length; ++i) { - var gutterClass = specs[i]; - var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass)); - if (gutterClass == "CodeMirror-linenumbers") { - cm.display.lineGutter = gElt; - gElt.style.width = (cm.display.lineNumWidth || 1) + "px"; + // W2. Search backwards from each instance of a European number + // until the first strong type (R, L, AL, or sor) is found. If an + // AL is found, change the type of the European number to Arabic + // number. + // W3. Change all ALs to R. + for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) { + var type$1 = types[i$2] + if (type$1 == "1" && cur == "r") { types[i$2] = "n" } + else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R" } } + } + + // W4. A single European separator between two European numbers + // changes to a European number. A single common separator between + // two numbers of the same type changes to that type. + for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) { + var type$2 = types[i$3] + if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1" } + else if (type$2 == "," && prev$1 == types[i$3+1] && + (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1 } + prev$1 = type$2 + } + + // W5. A sequence of European terminators adjacent to European + // numbers changes to all European numbers. + // W6. Otherwise, separators and terminators change to Other + // Neutral. + for (var i$4 = 0; i$4 < len; ++i$4) { + var type$3 = types[i$4] + if (type$3 == ",") { types[i$4] = "N" } + else if (type$3 == "%") { + var end = (void 0) + for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {} + var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N" + for (var j = i$4; j < end; ++j) { types[j] = replace } + i$4 = end - 1 } } - gutters.style.display = i ? "" : "none"; - updateGutterSpace(cm); - } - function updateGutterSpace(cm) { - var width = cm.display.gutters.offsetWidth; - cm.display.sizer.style.marginLeft = width + "px"; - } - - // Compute the character length of a line, taking into account - // collapsed ranges (see markText) that might hide parts, and join - // other lines onto it. - function lineLength(line) { - if (line.height == 0) return 0; - var len = line.text.length, merged, cur = line; - while (merged = collapsedSpanAtStart(cur)) { - var found = merged.find(0, true); - cur = found.from.line; - len += found.from.ch - found.to.ch; + // W7. Search backwards from each instance of a European number + // until the first strong type (R, L, or sor) is found. If an L is + // found, then change the type of the European number to L. + for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) { + var type$4 = types[i$5] + if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L" } + else if (isStrong.test(type$4)) { cur$1 = type$4 } } - cur = line; - while (merged = collapsedSpanAtEnd(cur)) { - var found = merged.find(0, true); - len -= cur.text.length - found.from.ch; - cur = found.to.line; - len += cur.text.length - found.to.ch; - } - return len; - } - // Find the longest line in the document. - function findMaxLine(cm) { - var d = cm.display, doc = cm.doc; - d.maxLine = getLine(doc, doc.first); - d.maxLineLength = lineLength(d.maxLine); - d.maxLineChanged = true; - doc.iter(function(line) { - var len = lineLength(line); - if (len > d.maxLineLength) { - d.maxLineLength = len; - d.maxLine = line; + // N1. A sequence of neutrals takes the direction of the + // surrounding strong text if the text on both sides has the same + // direction. European and Arabic numbers act as if they were R in + // terms of their influence on neutrals. Start-of-level-run (sor) + // and end-of-level-run (eor) are used at level run boundaries. + // N2. Any remaining neutrals take the embedding direction. + for (var i$6 = 0; i$6 < len; ++i$6) { + if (isNeutral.test(types[i$6])) { + var end$1 = (void 0) + for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {} + var before = (i$6 ? types[i$6-1] : outerType) == "L" + var after = (end$1 < len ? types[end$1] : outerType) == "L" + var replace$1 = before || after ? "L" : "R" + for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1 } + i$6 = end$1 - 1 } - }); - } - - // Make sure the gutters options contains the element - // "CodeMirror-linenumbers" when the lineNumbers option is true. - function setGuttersForLineNumbers(options) { - var found = indexOf(options.gutters, "CodeMirror-linenumbers"); - if (found == -1 && options.lineNumbers) { - options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]); - } else if (found > -1 && !options.lineNumbers) { - options.gutters = options.gutters.slice(0); - options.gutters.splice(found, 1); } - } - // SCROLLBARS - - // Prepare DOM reads needed to update the scrollbars. Done in one - // shot to minimize update/measure roundtrips. - function measureForScrollbars(cm) { - var d = cm.display, gutterW = d.gutters.offsetWidth; - var docH = Math.round(cm.doc.height + paddingVert(cm.display)); - return { - clientHeight: d.scroller.clientHeight, - viewHeight: d.wrapper.clientHeight, - scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth, - viewWidth: d.wrapper.clientWidth, - barLeft: cm.options.fixedGutter ? gutterW : 0, - docHeight: docH, - scrollHeight: docH + scrollGap(cm) + d.barHeight, - nativeBarWidth: d.nativeBarWidth, - gutterWidth: gutterW - }; - } - - function NativeScrollbars(place, scroll, cm) { - this.cm = cm; - var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar"); - var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar"); - place(vert); place(horiz); - - on(vert, "scroll", function() { - if (vert.clientHeight) scroll(vert.scrollTop, "vertical"); - }); - on(horiz, "scroll", function() { - if (horiz.clientWidth) scroll(horiz.scrollLeft, "horizontal"); - }); - - this.checkedZeroWidth = false; - // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). - if (ie && ie_version < 8) this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; - } - - NativeScrollbars.prototype = copyObj({ - update: function(measure) { - var needsH = measure.scrollWidth > measure.clientWidth + 1; - var needsV = measure.scrollHeight > measure.clientHeight + 1; - var sWidth = measure.nativeBarWidth; - - if (needsV) { - this.vert.style.display = "block"; - this.vert.style.bottom = needsH ? sWidth + "px" : "0"; - var totalHeight = measure.viewHeight - (needsH ? sWidth : 0); - // A bug in IE8 can cause this value to be negative, so guard it. - this.vert.firstChild.style.height = - Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"; + // Here we depart from the documented algorithm, in order to avoid + // building up an actual levels array. Since there are only three + // levels (0, 1, 2) in an implementation that doesn't take + // explicit embedding into account, we can build up the order on + // the fly, without following the level-based algorithm. + var order = [], m + for (var i$7 = 0; i$7 < len;) { + if (countsAsLeft.test(types[i$7])) { + var start = i$7 + for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {} + order.push(new BidiSpan(0, start, i$7)) } else { - this.vert.style.display = ""; - this.vert.firstChild.style.height = "0"; + var pos = i$7, at = order.length + for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {} + for (var j$2 = pos; j$2 < i$7;) { + if (countsAsNum.test(types[j$2])) { + if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)) } + var nstart = j$2 + for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {} + order.splice(at, 0, new BidiSpan(2, nstart, j$2)) + pos = j$2 + } else { ++j$2 } + } + if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)) } } + } + if (order[0].level == 1 && (m = str.match(/^\s+/))) { + order[0].from = m[0].length + order.unshift(new BidiSpan(0, 0, m[0].length)) + } + if (lst(order).level == 1 && (m = str.match(/\s+$/))) { + lst(order).to -= m[0].length + order.push(new BidiSpan(0, len - m[0].length, len)) + } + if (order[0].level == 2) + { order.unshift(new BidiSpan(1, order[0].to, order[0].to)) } + if (order[0].level != lst(order).level) + { order.push(new BidiSpan(order[0].level, len, len)) } - if (needsH) { - this.horiz.style.display = "block"; - this.horiz.style.right = needsV ? sWidth + "px" : "0"; - this.horiz.style.left = measure.barLeft + "px"; - var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0); - this.horiz.firstChild.style.width = - (measure.scrollWidth - measure.clientWidth + totalWidth) + "px"; + return order + } +})() + +// Get the bidi ordering for the given line (and cache it). Returns +// false for lines that are fully left-to-right, and an array of +// BidiSpan objects otherwise. +function getOrder(line) { + var order = line.order + if (order == null) { order = line.order = bidiOrdering(line.text) } + return order +} + +// EVENT HANDLING + +// Lightweight event framework. on/off also work on DOM nodes, +// registering native DOM handlers. + +var noHandlers = [] + +var on = function(emitter, type, f) { + if (emitter.addEventListener) { + emitter.addEventListener(type, f, false) + } else if (emitter.attachEvent) { + emitter.attachEvent("on" + type, f) + } else { + var map = emitter._handlers || (emitter._handlers = {}) + map[type] = (map[type] || noHandlers).concat(f) + } +} + +function getHandlers(emitter, type) { + return emitter._handlers && emitter._handlers[type] || noHandlers +} + +function off(emitter, type, f) { + if (emitter.removeEventListener) { + emitter.removeEventListener(type, f, false) + } else if (emitter.detachEvent) { + emitter.detachEvent("on" + type, f) + } else { + var map = emitter._handlers, arr = map && map[type] + if (arr) { + var index = indexOf(arr, f) + if (index > -1) + { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)) } + } + } +} + +function signal(emitter, type /*, values...*/) { + var handlers = getHandlers(emitter, type) + if (!handlers.length) { return } + var args = Array.prototype.slice.call(arguments, 2) + for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args) } +} + +// The DOM events that CodeMirror handles can be overridden by +// registering a (non-DOM) handler on the editor for the event name, +// and preventDefault-ing the event in that handler. +function signalDOMEvent(cm, e, override) { + if (typeof e == "string") + { e = {type: e, preventDefault: function() { this.defaultPrevented = true }} } + signal(cm, override || e.type, cm, e) + return e_defaultPrevented(e) || e.codemirrorIgnore +} + +function signalCursorActivity(cm) { + var arr = cm._handlers && cm._handlers.cursorActivity + if (!arr) { return } + var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []) + for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1) + { set.push(arr[i]) } } +} + +function hasHandler(emitter, type) { + return getHandlers(emitter, type).length > 0 +} + +// Add on and off methods to a constructor's prototype, to make +// registering events on such objects more convenient. +function eventMixin(ctor) { + ctor.prototype.on = function(type, f) {on(this, type, f)} + ctor.prototype.off = function(type, f) {off(this, type, f)} +} + +// Due to the fact that we still support jurassic IE versions, some +// compatibility wrappers are needed. + +function e_preventDefault(e) { + if (e.preventDefault) { e.preventDefault() } + else { e.returnValue = false } +} +function e_stopPropagation(e) { + if (e.stopPropagation) { e.stopPropagation() } + else { e.cancelBubble = true } +} +function e_defaultPrevented(e) { + return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false +} +function e_stop(e) {e_preventDefault(e); e_stopPropagation(e)} + +function e_target(e) {return e.target || e.srcElement} +function e_button(e) { + var b = e.which + if (b == null) { + if (e.button & 1) { b = 1 } + else if (e.button & 2) { b = 3 } + else if (e.button & 4) { b = 2 } + } + if (mac && e.ctrlKey && b == 1) { b = 3 } + return b +} + +// Detect drag-and-drop +var dragAndDrop = function() { + // There is *some* kind of drag-and-drop support in IE6-8, but I + // couldn't get it to work yet. + if (ie && ie_version < 9) { return false } + var div = elt('div') + return "draggable" in div || "dragDrop" in div +}() + +var zwspSupported +function zeroWidthElement(measure) { + if (zwspSupported == null) { + var test = elt("span", "\u200b") + removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])) + if (measure.firstChild.offsetHeight != 0) + { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8) } + } + var node = zwspSupported ? elt("span", "\u200b") : + elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px") + node.setAttribute("cm-text", "") + return node +} + +// Feature-detect IE's crummy client rect reporting for bidi text +var badBidiRects +function hasBadBidiRects(measure) { + if (badBidiRects != null) { return badBidiRects } + var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")) + var r0 = range(txt, 0, 1).getBoundingClientRect() + var r1 = range(txt, 1, 2).getBoundingClientRect() + removeChildren(measure) + if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780) + return badBidiRects = (r1.right - r0.right < 3) +} + +// See if "".split is the broken IE version, if so, provide an +// alternative way to split lines. +var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) { + var pos = 0, result = [], l = string.length + while (pos <= l) { + var nl = string.indexOf("\n", pos) + if (nl == -1) { nl = string.length } + var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl) + var rt = line.indexOf("\r") + if (rt != -1) { + result.push(line.slice(0, rt)) + pos += rt + 1 + } else { + result.push(line) + pos = nl + 1 + } + } + return result +} : function (string) { return string.split(/\r\n?|\n/); } + +var hasSelection = window.getSelection ? function (te) { + try { return te.selectionStart != te.selectionEnd } + catch(e) { return false } +} : function (te) { + var range + try {range = te.ownerDocument.selection.createRange()} + catch(e) {} + if (!range || range.parentElement() != te) { return false } + return range.compareEndPoints("StartToEnd", range) != 0 +} + +var hasCopyEvent = (function () { + var e = elt("div") + if ("oncopy" in e) { return true } + e.setAttribute("oncopy", "return;") + return typeof e.oncopy == "function" +})() + +var badZoomedRects = null +function hasBadZoomedRects(measure) { + if (badZoomedRects != null) { return badZoomedRects } + var node = removeChildrenAndAdd(measure, elt("span", "x")) + var normal = node.getBoundingClientRect() + var fromRange = range(node, 0, 1).getBoundingClientRect() + return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1 +} + +var modes = {}; +var mimeModes = {}; +// Extra arguments are stored as the mode's dependencies, which is +// used by (legacy) mechanisms like loadmode.js to automatically +// load a mode. (Preferred mechanism is the require/define calls.) +function defineMode(name, mode) { + if (arguments.length > 2) + { mode.dependencies = Array.prototype.slice.call(arguments, 2) } + modes[name] = mode +} + +function defineMIME(mime, spec) { + mimeModes[mime] = spec +} + +// Given a MIME type, a {name, ...options} config object, or a name +// string, return a mode config object. +function resolveMode(spec) { + if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { + spec = mimeModes[spec] + } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { + var found = mimeModes[spec.name] + if (typeof found == "string") { found = {name: found} } + spec = createObj(found, spec) + spec.name = found.name + } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { + return resolveMode("application/xml") + } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) { + return resolveMode("application/json") + } + if (typeof spec == "string") { return {name: spec} } + else { return spec || {name: "null"} } +} + +// Given a mode spec (anything that resolveMode accepts), find and +// initialize an actual mode object. +function getMode(options, spec) { + spec = resolveMode(spec) + var mfactory = modes[spec.name] + if (!mfactory) { return getMode(options, "text/plain") } + var modeObj = mfactory(options, spec) + if (modeExtensions.hasOwnProperty(spec.name)) { + var exts = modeExtensions[spec.name] + for (var prop in exts) { + if (!exts.hasOwnProperty(prop)) { continue } + if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop] } + modeObj[prop] = exts[prop] + } + } + modeObj.name = spec.name + if (spec.helperType) { modeObj.helperType = spec.helperType } + if (spec.modeProps) { for (var prop$1 in spec.modeProps) + { modeObj[prop$1] = spec.modeProps[prop$1] } } + + return modeObj +} + +// This can be used to attach properties to mode objects from +// outside the actual mode definition. +var modeExtensions = {} +function extendMode(mode, properties) { + var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}) + copyObj(properties, exts) +} + +function copyState(mode, state) { + if (state === true) { return state } + if (mode.copyState) { return mode.copyState(state) } + var nstate = {} + for (var n in state) { + var val = state[n] + if (val instanceof Array) { val = val.concat([]) } + nstate[n] = val + } + return nstate +} + +// Given a mode and a state (for that mode), find the inner mode and +// state at the position that the state refers to. +function innerMode(mode, state) { + var info + while (mode.innerMode) { + info = mode.innerMode(state) + if (!info || info.mode == mode) { break } + state = info.state + mode = info.mode + } + return info || {mode: mode, state: state} +} + +function startState(mode, a1, a2) { + return mode.startState ? mode.startState(a1, a2) : true +} + +// STRING STREAM + +// Fed to the mode parsers, provides helper functions to make +// parsers more succinct. + +var StringStream = function(string, tabSize) { + this.pos = this.start = 0 + this.string = string + this.tabSize = tabSize || 8 + this.lastColumnPos = this.lastColumnValue = 0 + this.lineStart = 0 +} + +StringStream.prototype = { + eol: function() {return this.pos >= this.string.length}, + sol: function() {return this.pos == this.lineStart}, + peek: function() {return this.string.charAt(this.pos) || undefined}, + next: function() { + if (this.pos < this.string.length) + { return this.string.charAt(this.pos++) } + }, + eat: function(match) { + var ch = this.string.charAt(this.pos) + var ok + if (typeof match == "string") { ok = ch == match } + else { ok = ch && (match.test ? match.test(ch) : match(ch)) } + if (ok) {++this.pos; return ch} + }, + eatWhile: function(match) { + var start = this.pos + while (this.eat(match)){} + return this.pos > start + }, + eatSpace: function() { + var this$1 = this; + + var start = this.pos + while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos } + return this.pos > start + }, + skipToEnd: function() {this.pos = this.string.length}, + skipTo: function(ch) { + var found = this.string.indexOf(ch, this.pos) + if (found > -1) {this.pos = found; return true} + }, + backUp: function(n) {this.pos -= n}, + column: function() { + if (this.lastColumnPos < this.start) { + this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue) + this.lastColumnPos = this.start + } + return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) + }, + indentation: function() { + return countColumn(this.string, null, this.tabSize) - + (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) + }, + match: function(pattern, consume, caseInsensitive) { + if (typeof pattern == "string") { + var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; } + var substr = this.string.substr(this.pos, pattern.length) + if (cased(substr) == cased(pattern)) { + if (consume !== false) { this.pos += pattern.length } + return true + } + } else { + var match = this.string.slice(this.pos).match(pattern) + if (match && match.index > 0) { return null } + if (match && consume !== false) { this.pos += match[0].length } + return match + } + }, + current: function(){return this.string.slice(this.start, this.pos)}, + hideFirstChars: function(n, inner) { + this.lineStart += n + try { return inner() } + finally { this.lineStart -= n } + } +} + +// Compute a style array (an array starting with a mode generation +// -- for invalidation -- followed by pairs of end positions and +// style strings), which is used to highlight the tokens on the +// line. +function highlightLine(cm, line, state, forceToEnd) { + // A styles array always starts with a number identifying the + // mode/overlays that it is based on (for easy invalidation). + var st = [cm.state.modeGen], lineClasses = {} + // Compute the base array of styles + runMode(cm, line.text, cm.doc.mode, state, function (end, style) { return st.push(end, style); }, + lineClasses, forceToEnd) + + // Run overlays, adjust style array. + var loop = function ( o ) { + var overlay = cm.state.overlays[o], i = 1, at = 0 + runMode(cm, line.text, overlay.mode, true, function (end, style) { + var start = i + // Ensure there's a token end at the current position, and that i points at it + while (at < end) { + var i_end = st[i] + if (i_end > end) + { st.splice(i, 1, end, st[i+1], i_end) } + i += 2 + at = Math.min(end, i_end) + } + if (!style) { return } + if (overlay.opaque) { + st.splice(start, i - start, end, "overlay " + style) + i = start + 2 } else { - this.horiz.style.display = ""; - this.horiz.firstChild.style.width = "0"; + for (; start < i; start += 2) { + var cur = st[start+1] + st[start+1] = (cur ? cur + " " : "") + "overlay " + style + } } + }, lineClasses) + }; - if (!this.checkedZeroWidth && measure.clientHeight > 0) { - if (sWidth == 0) this.zeroWidthHack(); - this.checkedZeroWidth = true; - } + for (var o = 0; o < cm.state.overlays.length; ++o) loop( o ); - return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}; - }, - setScrollLeft: function(pos) { - if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos; - if (this.disableHoriz) this.enableZeroWidthBar(this.horiz, this.disableHoriz); - }, - setScrollTop: function(pos) { - if (this.vert.scrollTop != pos) this.vert.scrollTop = pos; - if (this.disableVert) this.enableZeroWidthBar(this.vert, this.disableVert); - }, - zeroWidthHack: function() { - var w = mac && !mac_geMountainLion ? "12px" : "18px"; - this.horiz.style.height = this.vert.style.width = w; - this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"; - this.disableHoriz = new Delayed; - this.disableVert = new Delayed; - }, - enableZeroWidthBar: function(bar, delay) { - bar.style.pointerEvents = "auto"; - function maybeDisable() { - // To find out whether the scrollbar is still visible, we - // check whether the element under the pixel in the bottom - // left corner of the scrollbar box is the scrollbar box - // itself (when the bar is still visible) or its filler child - // (when the bar is hidden). If it is still visible, we keep - // it enabled, if it's hidden, we disable pointer events. - var box = bar.getBoundingClientRect(); - var elt = document.elementFromPoint(box.left + 1, box.bottom - 1); - if (elt != bar) bar.style.pointerEvents = "none"; - else delay.set(1000, maybeDisable); - } - delay.set(1000, maybeDisable); - }, - clear: function() { - var parent = this.horiz.parentNode; - parent.removeChild(this.horiz); - parent.removeChild(this.vert); + return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null} +} + +function getLineStyles(cm, line, updateFrontier) { + if (!line.styles || line.styles[0] != cm.state.modeGen) { + var state = getStateBefore(cm, lineNo(line)) + var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state) + line.stateAfter = state + line.styles = result.styles + if (result.classes) { line.styleClasses = result.classes } + else if (line.styleClasses) { line.styleClasses = null } + if (updateFrontier === cm.doc.frontier) { cm.doc.frontier++ } + } + return line.styles +} + +function getStateBefore(cm, n, precise) { + var doc = cm.doc, display = cm.display + if (!doc.mode.startState) { return true } + var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter + if (!state) { state = startState(doc.mode) } + else { state = copyState(doc.mode, state) } + doc.iter(pos, n, function (line) { + processLine(cm, line.text, state) + var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo + line.stateAfter = save ? copyState(doc.mode, state) : null + ++pos + }) + if (precise) { doc.frontier = pos } + return state +} + +// Lightweight form of highlight -- proceed over this line and +// update state, but don't save a style array. Used for lines that +// aren't currently visible. +function processLine(cm, text, state, startAt) { + var mode = cm.doc.mode + var stream = new StringStream(text, cm.options.tabSize) + stream.start = stream.pos = startAt || 0 + if (text == "") { callBlankLine(mode, state) } + while (!stream.eol()) { + readToken(mode, stream, state) + stream.start = stream.pos + } +} + +function callBlankLine(mode, state) { + if (mode.blankLine) { return mode.blankLine(state) } + if (!mode.innerMode) { return } + var inner = innerMode(mode, state) + if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) } +} + +function readToken(mode, stream, state, inner) { + for (var i = 0; i < 10; i++) { + if (inner) { inner[0] = innerMode(mode, state).mode } + var style = mode.token(stream, state) + if (stream.pos > stream.start) { return style } + } + throw new Error("Mode " + mode.name + " failed to advance stream.") +} + +// Utility for getTokenAt and getLineTokens +function takeToken(cm, pos, precise, asArray) { + var getObj = function (copy) { return ({ + start: stream.start, end: stream.pos, + string: stream.current(), + type: style || null, + state: copy ? copyState(doc.mode, state) : state + }); } + + var doc = cm.doc, mode = doc.mode, style + pos = clipPos(doc, pos) + var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise) + var stream = new StringStream(line.text, cm.options.tabSize), tokens + if (asArray) { tokens = [] } + while ((asArray || stream.pos < pos.ch) && !stream.eol()) { + stream.start = stream.pos + style = readToken(mode, stream, state) + if (asArray) { tokens.push(getObj(true)) } + } + return asArray ? tokens : getObj() +} + +function extractLineClasses(type, output) { + if (type) { for (;;) { + var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/) + if (!lineClass) { break } + type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length) + var prop = lineClass[1] ? "bgClass" : "textClass" + if (output[prop] == null) + { output[prop] = lineClass[2] } + else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop])) + { output[prop] += " " + lineClass[2] } + } } + return type +} + +// Run the given mode's parser over a line, calling f for each token. +function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) { + var flattenSpans = mode.flattenSpans + if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans } + var curStart = 0, curStyle = null + var stream = new StringStream(text, cm.options.tabSize), style + var inner = cm.options.addModeClass && [null] + if (text == "") { extractLineClasses(callBlankLine(mode, state), lineClasses) } + while (!stream.eol()) { + if (stream.pos > cm.options.maxHighlightLength) { + flattenSpans = false + if (forceToEnd) { processLine(cm, text, state, stream.pos) } + stream.pos = text.length + style = null + } else { + style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses) } - }, NativeScrollbars.prototype); + if (inner) { + var mName = inner[0].name + if (mName) { style = "m-" + (style ? mName + " " + style : mName) } + } + if (!flattenSpans || curStyle != style) { + while (curStart < stream.start) { + curStart = Math.min(stream.start, curStart + 5000) + f(curStart, curStyle) + } + curStyle = style + } + stream.start = stream.pos + } + while (curStart < stream.pos) { + // Webkit seems to refuse to render text nodes longer than 57444 + // characters, and returns inaccurate measurements in nodes + // starting around 5000 chars. + var pos = Math.min(stream.pos, curStart + 5000) + f(pos, curStyle) + curStart = pos + } +} - function NullScrollbars() {} +// Finds the line to start with when starting a parse. Tries to +// find a line with a stateAfter, so that it can start with a +// valid state. If that fails, it returns the line with the +// smallest indentation, which tends to need the least context to +// parse correctly. +function findStartLine(cm, n, precise) { + var minindent, minline, doc = cm.doc + var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100) + for (var search = n; search > lim; --search) { + if (search <= doc.first) { return doc.first } + var line = getLine(doc, search - 1) + if (line.stateAfter && (!precise || search <= doc.frontier)) { return search } + var indented = countColumn(line.text, null, cm.options.tabSize) + if (minline == null || minindent > indented) { + minline = search - 1 + minindent = indented + } + } + return minline +} - NullScrollbars.prototype = copyObj({ - update: function() { return {bottom: 0, right: 0}; }, - setScrollLeft: function() {}, - setScrollTop: function() {}, - clear: function() {} - }, NullScrollbars.prototype); +// LINE DATA STRUCTURE - CodeMirror.scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars}; +// Line objects. These hold state related to a line, including +// highlighting info (the styles array). +function Line(text, markedSpans, estimateHeight) { + this.text = text + attachMarkedSpans(this, markedSpans) + this.height = estimateHeight ? estimateHeight(this) : 1 +} +eventMixin(Line) +Line.prototype.lineNo = function() { return lineNo(this) } - function initScrollbars(cm) { - if (cm.display.scrollbars) { - cm.display.scrollbars.clear(); - if (cm.display.scrollbars.addClass) - rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); +// Change the content (text, markers) of a line. Automatically +// invalidates cached information and tries to re-estimate the +// line's height. +function updateLine(line, text, markedSpans, estimateHeight) { + line.text = text + if (line.stateAfter) { line.stateAfter = null } + if (line.styles) { line.styles = null } + if (line.order != null) { line.order = null } + detachMarkedSpans(line) + attachMarkedSpans(line, markedSpans) + var estHeight = estimateHeight ? estimateHeight(line) : 1 + if (estHeight != line.height) { updateLineHeight(line, estHeight) } +} + +// Detach a line from the document tree and its markers. +function cleanUpLine(line) { + line.parent = null + detachMarkedSpans(line) +} + +// Convert a style as returned by a mode (either null, or a string +// containing one or more styles) to a CSS style. This is cached, +// and also looks for line-wide styles. +var styleToClassCache = {}; +var styleToClassCacheWithMode = {}; +function interpretTokenStyle(style, options) { + if (!style || /^\s*$/.test(style)) { return null } + var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache + return cache[style] || + (cache[style] = style.replace(/\S+/g, "cm-$&")) +} + +// Render the DOM representation of the text of a line. Also builds +// up a 'line map', which points at the DOM nodes that represent +// specific stretches of text, and is used by the measuring code. +// The returned object contains the DOM node, this map, and +// information about line-wide styles that were set by the mode. +function buildLineContent(cm, lineView) { + // The padding-right forces the element to have a 'border', which + // is needed on Webkit to be able to get line-level bounding + // rectangles for it (in measureChar). + var content = elt("span", null, null, webkit ? "padding-right: .1px" : null) + var builder = {pre: elt("pre", [content], "CodeMirror-line"), content: content, + col: 0, pos: 0, cm: cm, + trailingSpace: false, + splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")} + lineView.measure = {} + + // Iterate over the logical lines that make up this visual line. + for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) { + var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0) + builder.pos = 0 + builder.addToken = buildToken + // Optionally wire in some hacks into the token-rendering + // algorithm, to deal with browser quirks. + if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line))) + { builder.addToken = buildTokenBadBidi(builder.addToken, order) } + builder.map = [] + var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line) + insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate)) + if (line.styleClasses) { + if (line.styleClasses.bgClass) + { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "") } + if (line.styleClasses.textClass) + { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "") } } - cm.display.scrollbars = new CodeMirror.scrollbarModel[cm.options.scrollbarStyle](function(node) { - cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller); - // Prevent clicks in the scrollbars from killing focus - on(node, "mousedown", function() { - if (cm.state.focused) setTimeout(function() { cm.display.input.focus(); }, 0); - }); - node.setAttribute("cm-not-content", "true"); - }, function(pos, axis) { - if (axis == "horizontal") setScrollLeft(cm, pos); - else setScrollTop(cm, pos); - }, cm); + // Ensure at least a single node is present, for measuring. + if (builder.map.length == 0) + { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))) } + + // Store the map and a cache object for the current logical line + if (i == 0) { + lineView.measure.map = builder.map + lineView.measure.cache = {} + } else { + ;(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map) + ;(lineView.measure.caches || (lineView.measure.caches = [])).push({}) + } + } + + // See issue #2901 + if (webkit) { + var last = builder.content.lastChild + if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab"))) + { builder.content.className = "cm-tab-wrap-hack" } + } + + signal(cm, "renderLine", cm, lineView.line, builder.pre) + if (builder.pre.className) + { builder.textClass = joinClasses(builder.pre.className, builder.textClass || "") } + + return builder +} + +function defaultSpecialCharPlaceholder(ch) { + var token = elt("span", "\u2022", "cm-invalidchar") + token.title = "\\u" + ch.charCodeAt(0).toString(16) + token.setAttribute("aria-label", token.title) + return token +} + +// Build up the DOM representation for a single token, and add it to +// the line map. Takes care to render special characters separately. +function buildToken(builder, text, style, startStyle, endStyle, title, css) { + if (!text) { return } + var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text + var special = builder.cm.state.specialChars, mustWrap = false + var content + if (!special.test(text)) { + builder.col += text.length + content = document.createTextNode(displayText) + builder.map.push(builder.pos, builder.pos + text.length, content) + if (ie && ie_version < 9) { mustWrap = true } + builder.pos += text.length + } else { + content = document.createDocumentFragment() + var pos = 0 + while (true) { + special.lastIndex = pos + var m = special.exec(text) + var skipped = m ? m.index - pos : text.length - pos + if (skipped) { + var txt = document.createTextNode(displayText.slice(pos, pos + skipped)) + if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])) } + else { content.appendChild(txt) } + builder.map.push(builder.pos, builder.pos + skipped, txt) + builder.col += skipped + builder.pos += skipped + } + if (!m) { break } + pos += skipped + 1 + var txt$1 = (void 0) + if (m[0] == "\t") { + var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize + txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")) + txt$1.setAttribute("role", "presentation") + txt$1.setAttribute("cm-text", "\t") + builder.col += tabWidth + } else if (m[0] == "\r" || m[0] == "\n") { + txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar")) + txt$1.setAttribute("cm-text", m[0]) + builder.col += 1 + } else { + txt$1 = builder.cm.options.specialCharPlaceholder(m[0]) + txt$1.setAttribute("cm-text", m[0]) + if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])) } + else { content.appendChild(txt$1) } + builder.col += 1 + } + builder.map.push(builder.pos, builder.pos + 1, txt$1) + builder.pos++ + } + } + builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32 + if (style || startStyle || endStyle || mustWrap || css) { + var fullStyle = style || "" + if (startStyle) { fullStyle += startStyle } + if (endStyle) { fullStyle += endStyle } + var token = elt("span", [content], fullStyle, css) + if (title) { token.title = title } + return builder.content.appendChild(token) + } + builder.content.appendChild(content) +} + +function splitSpaces(text, trailingBefore) { + if (text.length > 1 && !/ /.test(text)) { return text } + var spaceBefore = trailingBefore, result = "" + for (var i = 0; i < text.length; i++) { + var ch = text.charAt(i) + if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32)) + { ch = "\u00a0" } + result += ch + spaceBefore = ch == " " + } + return result +} + +// Work around nonsense dimensions being reported for stretches of +// right-to-left text. +function buildTokenBadBidi(inner, order) { + return function (builder, text, style, startStyle, endStyle, title, css) { + style = style ? style + " cm-force-border" : "cm-force-border" + var start = builder.pos, end = start + text.length + for (;;) { + // Find the part that overlaps with the start of this text + var part = (void 0) + for (var i = 0; i < order.length; i++) { + part = order[i] + if (part.to > start && part.from <= start) { break } + } + if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, title, css) } + inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css) + startStyle = null + text = text.slice(part.to - start) + start = part.to + } + } +} + +function buildCollapsedSpan(builder, size, marker, ignoreWidget) { + var widget = !ignoreWidget && marker.widgetNode + if (widget) { builder.map.push(builder.pos, builder.pos + size, widget) } + if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) { + if (!widget) + { widget = builder.content.appendChild(document.createElement("span")) } + widget.setAttribute("cm-marker", marker.id) + } + if (widget) { + builder.cm.display.input.setUneditable(widget) + builder.content.appendChild(widget) + } + builder.pos += size + builder.trailingSpace = false +} + +// Outputs a number of spans to make up a line, taking highlighting +// and marked text into account. +function insertLineContent(line, builder, styles) { + var spans = line.markedSpans, allText = line.text, at = 0 + if (!spans) { + for (var i$1 = 1; i$1 < styles.length; i$1+=2) + { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)) } + return + } + + var len = allText.length, pos = 0, i = 1, text = "", style, css + var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed + for (;;) { + if (nextChange == pos) { // Update current marker set + spanStyle = spanEndStyle = spanStartStyle = title = css = "" + collapsed = null; nextChange = Infinity + var foundBookmarks = [], endStyles = (void 0) + for (var j = 0; j < spans.length; ++j) { + var sp = spans[j], m = sp.marker + if (m.type == "bookmark" && sp.from == pos && m.widgetNode) { + foundBookmarks.push(m) + } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) { + if (sp.to != null && sp.to != pos && nextChange > sp.to) { + nextChange = sp.to + spanEndStyle = "" + } + if (m.className) { spanStyle += " " + m.className } + if (m.css) { css = (css ? css + ";" : "") + m.css } + if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle } + if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to) } + if (m.title && !title) { title = m.title } + if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)) + { collapsed = sp } + } else if (sp.from > pos && nextChange > sp.from) { + nextChange = sp.from + } + } + if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2) + { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1] } } } + + if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2) + { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]) } } + if (collapsed && (collapsed.from || 0) == pos) { + buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos, + collapsed.marker, collapsed.from == null) + if (collapsed.to == null) { return } + if (collapsed.to == pos) { collapsed = false } + } + } + if (pos >= len) { break } + + var upto = Math.min(len, nextChange) + while (true) { + if (text) { + var end = pos + text.length + if (!collapsed) { + var tokenText = end > upto ? text.slice(0, upto - pos) : text + builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, + spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css) + } + if (end >= upto) {text = text.slice(upto - pos); pos = upto; break} + pos = end + spanStartStyle = "" + } + text = allText.slice(at, at = styles[i++]) + style = interpretTokenStyle(styles[i++], builder.cm.options) + } + } +} + + +// These objects are used to represent the visible (currently drawn) +// part of the document. A LineView may correspond to multiple +// logical lines, if those are connected by collapsed ranges. +function LineView(doc, line, lineN) { + // The starting line + this.line = line + // Continuing lines, if any + this.rest = visualLineContinued(line) + // Number of logical lines in this visual line + this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1 + this.node = this.text = null + this.hidden = lineIsHidden(doc, line) +} + +// Create a range of LineView objects for the given lines. +function buildViewArray(cm, from, to) { + var array = [], nextPos + for (var pos = from; pos < to; pos = nextPos) { + var view = new LineView(cm.doc, getLine(cm.doc, pos), pos) + nextPos = pos + view.size + array.push(view) + } + return array +} + +var operationGroup = null + +function pushOperation(op) { + if (operationGroup) { + operationGroup.ops.push(op) + } else { + op.ownsGroup = operationGroup = { + ops: [op], + delayedCallbacks: [] + } + } +} + +function fireCallbacksForOps(group) { + // Calls delayed callbacks and cursorActivity handlers until no + // new ones appear + var callbacks = group.delayedCallbacks, i = 0 + do { + for (; i < callbacks.length; i++) + { callbacks[i].call(null) } + for (var j = 0; j < group.ops.length; j++) { + var op = group.ops[j] + if (op.cursorActivityHandlers) + { while (op.cursorActivityCalled < op.cursorActivityHandlers.length) + { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm) } } + } + } while (i < callbacks.length) +} + +function finishOperation(op, endCb) { + var group = op.ownsGroup + if (!group) { return } + + try { fireCallbacksForOps(group) } + finally { + operationGroup = null + endCb(group) + } +} + +var orphanDelayedCallbacks = null + +// Often, we want to signal events at a point where we are in the +// middle of some work, but don't want the handler to start calling +// other methods on the editor, which might be in an inconsistent +// state or simply not expect any other events to happen. +// signalLater looks whether there are any handlers, and schedules +// them to be executed when the last operation ends, or, if no +// operation is active, when a timeout fires. +function signalLater(emitter, type /*, values...*/) { + var arr = getHandlers(emitter, type) + if (!arr.length) { return } + var args = Array.prototype.slice.call(arguments, 2), list + if (operationGroup) { + list = operationGroup.delayedCallbacks + } else if (orphanDelayedCallbacks) { + list = orphanDelayedCallbacks + } else { + list = orphanDelayedCallbacks = [] + setTimeout(fireOrphanDelayed, 0) + } + var loop = function ( i ) { + list.push(function () { return arr[i].apply(null, args); }) + }; + + for (var i = 0; i < arr.length; ++i) + loop( i ); +} + +function fireOrphanDelayed() { + var delayed = orphanDelayedCallbacks + orphanDelayedCallbacks = null + for (var i = 0; i < delayed.length; ++i) { delayed[i]() } +} + +// When an aspect of a line changes, a string is added to +// lineView.changes. This updates the relevant part of the line's +// DOM structure. +function updateLineForChanges(cm, lineView, lineN, dims) { + for (var j = 0; j < lineView.changes.length; j++) { + var type = lineView.changes[j] + if (type == "text") { updateLineText(cm, lineView) } + else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims) } + else if (type == "class") { updateLineClasses(lineView) } + else if (type == "widget") { updateLineWidgets(cm, lineView, dims) } + } + lineView.changes = null +} + +// Lines with gutter elements, widgets or a background class need to +// be wrapped, and have the extra elements added to the wrapper div +function ensureLineWrapped(lineView) { + if (lineView.node == lineView.text) { + lineView.node = elt("div", null, null, "position: relative") + if (lineView.text.parentNode) + { lineView.text.parentNode.replaceChild(lineView.node, lineView.text) } + lineView.node.appendChild(lineView.text) + if (ie && ie_version < 8) { lineView.node.style.zIndex = 2 } + } + return lineView.node +} + +function updateLineBackground(lineView) { + var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass + if (cls) { cls += " CodeMirror-linebackground" } + if (lineView.background) { + if (cls) { lineView.background.className = cls } + else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null } + } else if (cls) { + var wrap = ensureLineWrapped(lineView) + lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild) + } +} + +// Wrapper around buildLineContent which will reuse the structure +// in display.externalMeasured when possible. +function getLineContent(cm, lineView) { + var ext = cm.display.externalMeasured + if (ext && ext.line == lineView.line) { + cm.display.externalMeasured = null + lineView.measure = ext.measure + return ext.built + } + return buildLineContent(cm, lineView) +} + +// Redraw the line's text. Interacts with the background and text +// classes because the mode may output tokens that influence these +// classes. +function updateLineText(cm, lineView) { + var cls = lineView.text.className + var built = getLineContent(cm, lineView) + if (lineView.text == lineView.node) { lineView.node = built.pre } + lineView.text.parentNode.replaceChild(built.pre, lineView.text) + lineView.text = built.pre + if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) { + lineView.bgClass = built.bgClass + lineView.textClass = built.textClass + updateLineClasses(lineView) + } else if (cls) { + lineView.text.className = cls + } +} + +function updateLineClasses(lineView) { + updateLineBackground(lineView) + if (lineView.line.wrapClass) + { ensureLineWrapped(lineView).className = lineView.line.wrapClass } + else if (lineView.node != lineView.text) + { lineView.node.className = "" } + var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass + lineView.text.className = textClass || "" +} + +function updateLineGutter(cm, lineView, lineN, dims) { + if (lineView.gutter) { + lineView.node.removeChild(lineView.gutter) + lineView.gutter = null + } + if (lineView.gutterBackground) { + lineView.node.removeChild(lineView.gutterBackground) + lineView.gutterBackground = null + } + if (lineView.line.gutterClass) { + var wrap = ensureLineWrapped(lineView) + lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass, + ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px")) + wrap.insertBefore(lineView.gutterBackground, lineView.text) + } + var markers = lineView.line.gutterMarkers + if (cm.options.lineNumbers || markers) { + var wrap$1 = ensureLineWrapped(lineView) + var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px")) + cm.display.input.setUneditable(gutterWrap) + wrap$1.insertBefore(gutterWrap, lineView.text) + if (lineView.line.gutterClass) + { gutterWrap.className += " " + lineView.line.gutterClass } + if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) + { lineView.lineNumber = gutterWrap.appendChild( + elt("div", lineNumberFor(cm.options, lineN), + "CodeMirror-linenumber CodeMirror-gutter-elt", + ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))) } + if (markers) { for (var k = 0; k < cm.options.gutters.length; ++k) { + var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id] + if (found) + { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", + ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))) } + } } + } +} + +function updateLineWidgets(cm, lineView, dims) { + if (lineView.alignable) { lineView.alignable = null } + for (var node = lineView.node.firstChild, next = (void 0); node; node = next) { + next = node.nextSibling + if (node.className == "CodeMirror-linewidget") + { lineView.node.removeChild(node) } + } + insertLineWidgets(cm, lineView, dims) +} + +// Build a line's DOM representation from scratch +function buildLineElement(cm, lineView, lineN, dims) { + var built = getLineContent(cm, lineView) + lineView.text = lineView.node = built.pre + if (built.bgClass) { lineView.bgClass = built.bgClass } + if (built.textClass) { lineView.textClass = built.textClass } + + updateLineClasses(lineView) + updateLineGutter(cm, lineView, lineN, dims) + insertLineWidgets(cm, lineView, dims) + return lineView.node +} + +// A lineView may contain multiple logical lines (when merged by +// collapsed spans). The widgets for all of them need to be drawn. +function insertLineWidgets(cm, lineView, dims) { + insertLineWidgetsFor(cm, lineView.line, lineView, dims, true) + if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) + { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false) } } +} + +function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) { + if (!line.widgets) { return } + var wrap = ensureLineWrapped(lineView) + for (var i = 0, ws = line.widgets; i < ws.length; ++i) { + var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget") + if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true") } + positionLineWidget(widget, node, lineView, dims) + cm.display.input.setUneditable(node) + if (allowAbove && widget.above) + { wrap.insertBefore(node, lineView.gutter || lineView.text) } + else + { wrap.appendChild(node) } + signalLater(widget, "redraw") + } +} + +function positionLineWidget(widget, node, lineView, dims) { + if (widget.noHScroll) { + ;(lineView.alignable || (lineView.alignable = [])).push(node) + var width = dims.wrapperWidth + node.style.left = dims.fixedPos + "px" + if (!widget.coverGutter) { + width -= dims.gutterTotalWidth + node.style.paddingLeft = dims.gutterTotalWidth + "px" + } + node.style.width = width + "px" + } + if (widget.coverGutter) { + node.style.zIndex = 5 + node.style.position = "relative" + if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px" } + } +} + +function widgetHeight(widget) { + if (widget.height != null) { return widget.height } + var cm = widget.doc.cm + if (!cm) { return 0 } + if (!contains(document.body, widget.node)) { + var parentStyle = "position: relative;" + if (widget.coverGutter) + { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;" } + if (widget.noHScroll) + { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;" } + removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle)) + } + return widget.height = widget.node.parentNode.offsetHeight +} + +// Return true when the given mouse event happened in a widget +function eventInWidget(display, e) { + for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { + if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") || + (n.parentNode == display.sizer && n != display.mover)) + { return true } + } +} + +// POSITION MEASUREMENT + +function paddingTop(display) {return display.lineSpace.offsetTop} +function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight} +function paddingH(display) { + if (display.cachedPaddingH) { return display.cachedPaddingH } + var e = removeChildrenAndAdd(display.measure, elt("pre", "x")) + var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle + var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)} + if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data } + return data +} + +function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth } +function displayWidth(cm) { + return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth +} +function displayHeight(cm) { + return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight +} + +// Ensure the lineView.wrapping.heights array is populated. This is +// an array of bottom offsets for the lines that make up a drawn +// line. When lineWrapping is on, there might be more than one +// height. +function ensureLineHeights(cm, lineView, rect) { + var wrapping = cm.options.lineWrapping + var curWidth = wrapping && displayWidth(cm) + if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) { + var heights = lineView.measure.heights = [] + if (wrapping) { + lineView.measure.width = curWidth + var rects = lineView.text.firstChild.getClientRects() + for (var i = 0; i < rects.length - 1; i++) { + var cur = rects[i], next = rects[i + 1] + if (Math.abs(cur.bottom - next.bottom) > 2) + { heights.push((cur.bottom + next.top) / 2 - rect.top) } + } + } + heights.push(rect.bottom - rect.top) + } +} + +// Find a line map (mapping character offsets to text nodes) and a +// measurement cache for the given line number. (A line view might +// contain multiple lines when collapsed ranges are present.) +function mapFromLineView(lineView, line, lineN) { + if (lineView.line == line) + { return {map: lineView.measure.map, cache: lineView.measure.cache} } + for (var i = 0; i < lineView.rest.length; i++) + { if (lineView.rest[i] == line) + { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } } + for (var i$1 = 0; i$1 < lineView.rest.length; i$1++) + { if (lineNo(lineView.rest[i$1]) > lineN) + { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } } +} + +// Render a line into the hidden node display.externalMeasured. Used +// when measurement is needed for a line that's not in the viewport. +function updateExternalMeasurement(cm, line) { + line = visualLine(line) + var lineN = lineNo(line) + var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN) + view.lineN = lineN + var built = view.built = buildLineContent(cm, view) + view.text = built.pre + removeChildrenAndAdd(cm.display.lineMeasure, built.pre) + return view +} + +// Get a {top, bottom, left, right} box (in line-local coordinates) +// for a given character. +function measureChar(cm, line, ch, bias) { + return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias) +} + +// Find a line view that corresponds to the given line number. +function findViewForLine(cm, lineN) { + if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo) + { return cm.display.view[findViewIndex(cm, lineN)] } + var ext = cm.display.externalMeasured + if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) + { return ext } +} + +// Measurement can be split in two steps, the set-up work that +// applies to the whole line, and the measurement of the actual +// character. Functions like coordsChar, that need to do a lot of +// measurements in a row, can thus ensure that the set-up work is +// only done once. +function prepareMeasureForLine(cm, line) { + var lineN = lineNo(line) + var view = findViewForLine(cm, lineN) + if (view && !view.text) { + view = null + } else if (view && view.changes) { + updateLineForChanges(cm, view, lineN, getDimensions(cm)) + cm.curOp.forceUpdate = true + } + if (!view) + { view = updateExternalMeasurement(cm, line) } + + var info = mapFromLineView(view, line, lineN) + return { + line: line, view: view, rect: null, + map: info.map, cache: info.cache, before: info.before, + hasHeights: false + } +} + +// Given a prepared measurement object, measures the position of an +// actual character (or fetches it from the cache). +function measureCharPrepared(cm, prepared, ch, bias, varHeight) { + if (prepared.before) { ch = -1 } + var key = ch + (bias || ""), found + if (prepared.cache.hasOwnProperty(key)) { + found = prepared.cache[key] + } else { + if (!prepared.rect) + { prepared.rect = prepared.view.text.getBoundingClientRect() } + if (!prepared.hasHeights) { + ensureLineHeights(cm, prepared.view, prepared.rect) + prepared.hasHeights = true + } + found = measureCharInner(cm, prepared, ch, bias) + if (!found.bogus) { prepared.cache[key] = found } + } + return {left: found.left, right: found.right, + top: varHeight ? found.rtop : found.top, + bottom: varHeight ? found.rbottom : found.bottom} +} + +var nullRect = {left: 0, right: 0, top: 0, bottom: 0} + +function nodeAndOffsetInLineMap(map, ch, bias) { + var node, start, end, collapse, mStart, mEnd + // First, search the line map for the text node corresponding to, + // or closest to, the target character. + for (var i = 0; i < map.length; i += 3) { + mStart = map[i] + mEnd = map[i + 1] + if (ch < mStart) { + start = 0; end = 1 + collapse = "left" + } else if (ch < mEnd) { + start = ch - mStart + end = start + 1 + } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) { + end = mEnd - mStart + start = end - 1 + if (ch >= mEnd) { collapse = "right" } + } + if (start != null) { + node = map[i + 2] + if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) + { collapse = bias } + if (bias == "left" && start == 0) + { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) { + node = map[(i -= 3) + 2] + collapse = "left" + } } + if (bias == "right" && start == mEnd - mStart) + { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) { + node = map[(i += 3) + 2] + collapse = "right" + } } + break + } + } + return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd} +} + +function getUsefulRect(rects, bias) { + var rect = nullRect + if (bias == "left") { for (var i = 0; i < rects.length; i++) { + if ((rect = rects[i]).left != rect.right) { break } + } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) { + if ((rect = rects[i$1]).left != rect.right) { break } + } } + return rect +} + +function measureCharInner(cm, prepared, ch, bias) { + var place = nodeAndOffsetInLineMap(prepared.map, ch, bias) + var node = place.node, start = place.start, end = place.end, collapse = place.collapse + + var rect + if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates. + for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned + while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start } + while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end } + if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) + { rect = node.parentNode.getBoundingClientRect() } + else + { rect = getUsefulRect(range(node, start, end).getClientRects(), bias) } + if (rect.left || rect.right || start == 0) { break } + end = start + start = start - 1 + collapse = "right" + } + if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect) } + } else { // If it is a widget, simply get the box for the whole widget. + if (start > 0) { collapse = bias = "right" } + var rects + if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1) + { rect = rects[bias == "right" ? rects.length - 1 : 0] } + else + { rect = node.getBoundingClientRect() } + } + if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) { + var rSpan = node.parentNode.getClientRects()[0] + if (rSpan) + { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom} } + else + { rect = nullRect } + } + + var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top + var mid = (rtop + rbot) / 2 + var heights = prepared.view.measure.heights + var i = 0 + for (; i < heights.length - 1; i++) + { if (mid < heights[i]) { break } } + var top = i ? heights[i - 1] : 0, bot = heights[i] + var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left, + right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left, + top: top, bottom: bot} + if (!rect.left && !rect.right) { result.bogus = true } + if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot } + + return result +} + +// Work around problem with bounding client rects on ranges being +// returned incorrectly when zoomed on IE10 and below. +function maybeUpdateRectForZooming(measure, rect) { + if (!window.screen || screen.logicalXDPI == null || + screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure)) + { return rect } + var scaleX = screen.logicalXDPI / screen.deviceXDPI + var scaleY = screen.logicalYDPI / screen.deviceYDPI + return {left: rect.left * scaleX, right: rect.right * scaleX, + top: rect.top * scaleY, bottom: rect.bottom * scaleY} +} + +function clearLineMeasurementCacheFor(lineView) { + if (lineView.measure) { + lineView.measure.cache = {} + lineView.measure.heights = null + if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) + { lineView.measure.caches[i] = {} } } + } +} + +function clearLineMeasurementCache(cm) { + cm.display.externalMeasure = null + removeChildren(cm.display.lineMeasure) + for (var i = 0; i < cm.display.view.length; i++) + { clearLineMeasurementCacheFor(cm.display.view[i]) } +} + +function clearCaches(cm) { + clearLineMeasurementCache(cm) + cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null + if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true } + cm.display.lineNumChars = null +} + +function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft } +function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop } + +// Converts a {top, bottom, left, right} box from line-local +// coordinates into another coordinate system. Context may be one of +// "line", "div" (display.lineDiv), "local"./null (editor), "window", +// or "page". +function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) { + if (!includeWidgets && lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above) { + var size = widgetHeight(lineObj.widgets[i]) + rect.top += size; rect.bottom += size + } } } + if (context == "line") { return rect } + if (!context) { context = "local" } + var yOff = heightAtLine(lineObj) + if (context == "local") { yOff += paddingTop(cm.display) } + else { yOff -= cm.display.viewOffset } + if (context == "page" || context == "window") { + var lOff = cm.display.lineSpace.getBoundingClientRect() + yOff += lOff.top + (context == "window" ? 0 : pageScrollY()) + var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()) + rect.left += xOff; rect.right += xOff + } + rect.top += yOff; rect.bottom += yOff + return rect +} + +// Coverts a box from "div" coords to another coordinate system. +// Context may be "window", "page", "div", or "local"./null. +function fromCoordSystem(cm, coords, context) { + if (context == "div") { return coords } + var left = coords.left, top = coords.top + // First move into "page" coordinate system + if (context == "page") { + left -= pageScrollX() + top -= pageScrollY() + } else if (context == "local" || !context) { + var localBox = cm.display.sizer.getBoundingClientRect() + left += localBox.left + top += localBox.top + } + + var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect() + return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top} +} + +function charCoords(cm, pos, context, lineObj, bias) { + if (!lineObj) { lineObj = getLine(cm.doc, pos.line) } + return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context) +} + +// Returns a box for a given cursor position, which may have an +// 'other' property containing the position of the secondary cursor +// on a bidi boundary. +function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) { + lineObj = lineObj || getLine(cm.doc, pos.line) + if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj) } + function get(ch, right) { + var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight) + if (right) { m.left = m.right; } else { m.right = m.left } + return intoCoordSystem(cm, lineObj, m, context) + } + function getBidi(ch, partPos) { + var part = order[partPos], right = part.level % 2 + if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) { + part = order[--partPos] + ch = bidiRight(part) - (part.level % 2 ? 0 : 1) + right = true + } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) { + part = order[++partPos] + ch = bidiLeft(part) - part.level % 2 + right = false + } + if (right && ch == part.to && ch > part.from) { return get(ch - 1) } + return get(ch, right) + } + var order = getOrder(lineObj), ch = pos.ch + if (!order) { return get(ch) } + var partPos = getBidiPartAt(order, ch) + var val = getBidi(ch, partPos) + if (bidiOther != null) { val.other = getBidi(ch, bidiOther) } + return val +} + +// Used to cheaply estimate the coordinates for a position. Used for +// intermediate scroll updates. +function estimateCoords(cm, pos) { + var left = 0 + pos = clipPos(cm.doc, pos) + if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch } + var lineObj = getLine(cm.doc, pos.line) + var top = heightAtLine(lineObj) + paddingTop(cm.display) + return {left: left, right: left, top: top, bottom: top + lineObj.height} +} + +// Positions returned by coordsChar contain some extra information. +// xRel is the relative x position of the input coordinates compared +// to the found position (so xRel > 0 means the coordinates are to +// the right of the character position, for example). When outside +// is true, that means the coordinates lie outside the line's +// vertical range. +function PosWithInfo(line, ch, outside, xRel) { + var pos = Pos(line, ch) + pos.xRel = xRel + if (outside) { pos.outside = true } + return pos +} + +// Compute the character position closest to the given coordinates. +// Input must be lineSpace-local ("div" coordinate system). +function coordsChar(cm, x, y) { + var doc = cm.doc + y += cm.display.viewOffset + if (y < 0) { return PosWithInfo(doc.first, 0, true, -1) } + var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1 + if (lineN > last) + { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1) } + if (x < 0) { x = 0 } + + var lineObj = getLine(doc, lineN) + for (;;) { + var found = coordsCharInner(cm, lineObj, lineN, x, y) + var merged = collapsedSpanAtEnd(lineObj) + var mergedPos = merged && merged.find(0, true) + if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0)) + { lineN = lineNo(lineObj = mergedPos.to.line) } + else + { return found } + } +} + +function coordsCharInner(cm, lineObj, lineNo, x, y) { + var innerOff = y - heightAtLine(lineObj) + var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth + var preparedMeasure = prepareMeasureForLine(cm, lineObj) + + function getX(ch) { + var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure) + wrongLine = true + if (innerOff > sp.bottom) { return sp.left - adjust } + else if (innerOff < sp.top) { return sp.left + adjust } + else { wrongLine = false } + return sp.left + } + + var bidi = getOrder(lineObj), dist = lineObj.text.length + var from = lineLeft(lineObj), to = lineRight(lineObj) + var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine + + if (x > toX) { return PosWithInfo(lineNo, to, toOutside, 1) } + // Do a binary search between these bounds. + for (;;) { + if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) { + var ch = x < fromX || x - fromX <= toX - x ? from : to + var outside = ch == from ? fromOutside : toOutside + var xDiff = x - (ch == from ? fromX : toX) + // This is a kludge to handle the case where the coordinates + // are after a line-wrapped line. We should replace it with a + // more general handling of cursor positions around line + // breaks. (Issue #4078) + if (toOutside && !bidi && !/\s/.test(lineObj.text.charAt(ch)) && xDiff > 0 && + ch < lineObj.text.length && preparedMeasure.view.measure.heights.length > 1) { + var charSize = measureCharPrepared(cm, preparedMeasure, ch, "right") + if (innerOff <= charSize.bottom && innerOff >= charSize.top && Math.abs(x - charSize.right) < xDiff) { + outside = false + ch++ + xDiff = x - charSize.right + } + } + while (isExtendingChar(lineObj.text.charAt(ch))) { ++ch } + var pos = PosWithInfo(lineNo, ch, outside, xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0) + return pos + } + var step = Math.ceil(dist / 2), middle = from + step + if (bidi) { + middle = from + for (var i = 0; i < step; ++i) { middle = moveVisually(lineObj, middle, 1) } + } + var middleX = getX(middle) + if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) { toX += 1000; } dist = step} + else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step} + } +} + +var measureText +// Compute the default text height. +function textHeight(display) { + if (display.cachedTextHeight != null) { return display.cachedTextHeight } + if (measureText == null) { + measureText = elt("pre") + // Measure a bunch of lines, for browsers that compute + // fractional heights. + for (var i = 0; i < 49; ++i) { + measureText.appendChild(document.createTextNode("x")) + measureText.appendChild(elt("br")) + } + measureText.appendChild(document.createTextNode("x")) + } + removeChildrenAndAdd(display.measure, measureText) + var height = measureText.offsetHeight / 50 + if (height > 3) { display.cachedTextHeight = height } + removeChildren(display.measure) + return height || 1 +} + +// Compute the default character width. +function charWidth(display) { + if (display.cachedCharWidth != null) { return display.cachedCharWidth } + var anchor = elt("span", "xxxxxxxxxx") + var pre = elt("pre", [anchor]) + removeChildrenAndAdd(display.measure, pre) + var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10 + if (width > 2) { display.cachedCharWidth = width } + return width || 10 +} + +// Do a bulk-read of the DOM positions and sizes needed to draw the +// view, so that we don't interleave reading and writing to the DOM. +function getDimensions(cm) { + var d = cm.display, left = {}, width = {} + var gutterLeft = d.gutters.clientLeft + for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { + left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft + width[cm.options.gutters[i]] = n.clientWidth + } + return {fixedPos: compensateForHScroll(d), + gutterTotalWidth: d.gutters.offsetWidth, + gutterLeft: left, + gutterWidth: width, + wrapperWidth: d.wrapper.clientWidth} +} + +// Computes display.scroller.scrollLeft + display.gutters.offsetWidth, +// but using getBoundingClientRect to get a sub-pixel-accurate +// result. +function compensateForHScroll(display) { + return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left +} + +// Returns a function that estimates the height of a line, to use as +// first approximation until the line becomes visible (and is thus +// properly measurable). +function estimateHeight(cm) { + var th = textHeight(cm.display), wrapping = cm.options.lineWrapping + var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3) + return function (line) { + if (lineIsHidden(cm.doc, line)) { return 0 } + + var widgetsHeight = 0 + if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) { + if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height } + } } + + if (wrapping) + { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th } + else + { return widgetsHeight + th } + } +} + +function estimateLineHeights(cm) { + var doc = cm.doc, est = estimateHeight(cm) + doc.iter(function (line) { + var estHeight = est(line) + if (estHeight != line.height) { updateLineHeight(line, estHeight) } + }) +} + +// Given a mouse event, find the corresponding position. If liberal +// is false, it checks whether a gutter or scrollbar was clicked, +// and returns null if it was. forRect is used by rectangular +// selections, and tries to estimate a character position even for +// coordinates beyond the right of the text. +function posFromMouse(cm, e, liberal, forRect) { + var display = cm.display + if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null } + + var x, y, space = display.lineSpace.getBoundingClientRect() + // Fails unpredictably on IE[67] when mouse is dragged around quickly. + try { x = e.clientX - space.left; y = e.clientY - space.top } + catch (e) { return null } + var coords = coordsChar(cm, x, y), line + if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) { + var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length + coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff)) + } + return coords +} + +// Find the view element corresponding to a given line. Return null +// when the line isn't visible. +function findViewIndex(cm, n) { + if (n >= cm.display.viewTo) { return null } + n -= cm.display.viewFrom + if (n < 0) { return null } + var view = cm.display.view + for (var i = 0; i < view.length; i++) { + n -= view[i].size + if (n < 0) { return i } + } +} + +function updateSelection(cm) { + cm.display.input.showSelection(cm.display.input.prepareSelection()) +} + +function prepareSelection(cm, primary) { + var doc = cm.doc, result = {} + var curFragment = result.cursors = document.createDocumentFragment() + var selFragment = result.selection = document.createDocumentFragment() + + for (var i = 0; i < doc.sel.ranges.length; i++) { + if (primary === false && i == doc.sel.primIndex) { continue } + var range = doc.sel.ranges[i] + if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue } + var collapsed = range.empty() + if (collapsed || cm.options.showCursorWhenSelecting) + { drawSelectionCursor(cm, range.head, curFragment) } + if (!collapsed) + { drawSelectionRange(cm, range, selFragment) } + } + return result +} + +// Draws a cursor for the given range +function drawSelectionCursor(cm, head, output) { + var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine) + + var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor")) + cursor.style.left = pos.left + "px" + cursor.style.top = pos.top + "px" + cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px" + + if (pos.other) { + // Secondary cursor, shown when on a 'jump' in bi-directional text + var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")) + otherCursor.style.display = "" + otherCursor.style.left = pos.other.left + "px" + otherCursor.style.top = pos.other.top + "px" + otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px" + } +} + +// Draws the given range as a highlighted selection +function drawSelectionRange(cm, range, output) { + var display = cm.display, doc = cm.doc + var fragment = document.createDocumentFragment() + var padding = paddingH(cm.display), leftSide = padding.left + var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right + + function add(left, top, width, bottom) { + if (top < 0) { top = 0 } + top = Math.round(top) + bottom = Math.round(bottom) + fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n height: " + (bottom - top) + "px"))) + } + + function drawForLine(line, fromArg, toArg) { + var lineObj = getLine(doc, line) + var lineLen = lineObj.text.length + var start, end + function coords(ch, bias) { + return charCoords(cm, Pos(line, ch), "div", lineObj, bias) + } + + iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir) { + var leftPos = coords(from, "left"), rightPos, left, right + if (from == to) { + rightPos = leftPos + left = right = leftPos.left + } else { + rightPos = coords(to - 1, "right") + if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp } + left = leftPos.left + right = rightPos.right + } + if (fromArg == null && from == 0) { left = leftSide } + if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part + add(left, leftPos.top, null, leftPos.bottom) + left = leftSide + if (leftPos.bottom < rightPos.top) { add(left, leftPos.bottom, null, rightPos.top) } + } + if (toArg == null && to == lineLen) { right = rightSide } + if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left) + { start = leftPos } + if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right) + { end = rightPos } + if (left < leftSide + 1) { left = leftSide } + add(left, rightPos.top, right - left, rightPos.bottom) + }) + return {start: start, end: end} + } + + var sFrom = range.from(), sTo = range.to() + if (sFrom.line == sTo.line) { + drawForLine(sFrom.line, sFrom.ch, sTo.ch) + } else { + var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line) + var singleVLine = visualLine(fromLine) == visualLine(toLine) + var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end + var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start + if (singleVLine) { + if (leftEnd.top < rightStart.top - 2) { + add(leftEnd.right, leftEnd.top, null, leftEnd.bottom) + add(leftSide, rightStart.top, rightStart.left, rightStart.bottom) + } else { + add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom) + } + } + if (leftEnd.bottom < rightStart.top) + { add(leftSide, leftEnd.bottom, null, rightStart.top) } + } + + output.appendChild(fragment) +} + +// Cursor-blinking +function restartBlink(cm) { + if (!cm.state.focused) { return } + var display = cm.display + clearInterval(display.blinker) + var on = true + display.cursorDiv.style.visibility = "" + if (cm.options.cursorBlinkRate > 0) + { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; }, + cm.options.cursorBlinkRate) } + else if (cm.options.cursorBlinkRate < 0) + { display.cursorDiv.style.visibility = "hidden" } +} + +function ensureFocus(cm) { + if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm) } +} + +function delayBlurEvent(cm) { + cm.state.delayingBlurEvent = true + setTimeout(function () { if (cm.state.delayingBlurEvent) { + cm.state.delayingBlurEvent = false + onBlur(cm) + } }, 100) +} + +function onFocus(cm, e) { + if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false } + + if (cm.options.readOnly == "nocursor") { return } + if (!cm.state.focused) { + signal(cm, "focus", cm, e) + cm.state.focused = true + addClass(cm.display.wrapper, "CodeMirror-focused") + // This test prevents this from firing when a context + // menu is closed (since the input reset would kill the + // select-all detection hack) + if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) { + cm.display.input.reset() + if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20) } // Issue #1730 + } + cm.display.input.receivedFocus() + } + restartBlink(cm) +} +function onBlur(cm, e) { + if (cm.state.delayingBlurEvent) { return } + + if (cm.state.focused) { + signal(cm, "blur", cm, e) + cm.state.focused = false + rmClass(cm.display.wrapper, "CodeMirror-focused") + } + clearInterval(cm.display.blinker) + setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false } }, 150) +} + +// Re-align line numbers and gutter marks to compensate for +// horizontal scrolling. +function alignHorizontally(cm) { + var display = cm.display, view = display.view + if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return } + var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft + var gutterW = display.gutters.offsetWidth, left = comp + "px" + for (var i = 0; i < view.length; i++) { if (!view[i].hidden) { + if (cm.options.fixedGutter) { + if (view[i].gutter) + { view[i].gutter.style.left = left } + if (view[i].gutterBackground) + { view[i].gutterBackground.style.left = left } + } + var align = view[i].alignable + if (align) { for (var j = 0; j < align.length; j++) + { align[j].style.left = left } } + } } + if (cm.options.fixedGutter) + { display.gutters.style.left = (comp + gutterW) + "px" } +} + +// Used to ensure that the line number gutter is still the right +// size for the current document size. Returns true when an update +// is needed. +function maybeUpdateLineNumberWidth(cm) { + if (!cm.options.lineNumbers) { return false } + var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display + if (last.length != display.lineNumChars) { + var test = display.measure.appendChild(elt("div", [elt("div", last)], + "CodeMirror-linenumber CodeMirror-gutter-elt")) + var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW + display.lineGutter.style.width = "" + display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1 + display.lineNumWidth = display.lineNumInnerWidth + padding + display.lineNumChars = display.lineNumInnerWidth ? last.length : -1 + display.lineGutter.style.width = display.lineNumWidth + "px" + updateGutterSpace(cm) + return true + } + return false +} + +// Read the actual heights of the rendered lines, and update their +// stored heights to match. +function updateHeightsInViewport(cm) { + var display = cm.display + var prevBottom = display.lineDiv.offsetTop + for (var i = 0; i < display.view.length; i++) { + var cur = display.view[i], height = (void 0) + if (cur.hidden) { continue } + if (ie && ie_version < 8) { + var bot = cur.node.offsetTop + cur.node.offsetHeight + height = bot - prevBottom + prevBottom = bot + } else { + var box = cur.node.getBoundingClientRect() + height = box.bottom - box.top + } + var diff = cur.line.height - height + if (height < 2) { height = textHeight(display) } + if (diff > .001 || diff < -.001) { + updateLineHeight(cur.line, height) + updateWidgetHeight(cur.line) + if (cur.rest) { for (var j = 0; j < cur.rest.length; j++) + { updateWidgetHeight(cur.rest[j]) } } + } + } +} + +// Read and store the height of line widgets associated with the +// given line. +function updateWidgetHeight(line) { + if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) + { line.widgets[i].height = line.widgets[i].node.parentNode.offsetHeight } } +} + +// Compute the lines that are visible in a given viewport (defaults +// the the current scroll position). viewport may contain top, +// height, and ensure (see op.scrollToPos) properties. +function visibleLines(display, doc, viewport) { + var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop + top = Math.floor(top - paddingTop(display)) + var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight + + var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom) + // Ensure is a {from: {line, ch}, to: {line, ch}} object, and + // forces those lines into the viewport (if possible). + if (viewport && viewport.ensure) { + var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line + if (ensureFrom < from) { + from = ensureFrom + to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight) + } else if (Math.min(ensureTo, doc.lastLine()) >= to) { + from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight) + to = ensureTo + } + } + return {from: from, to: Math.max(to, from + 1)} +} + +// Sync the scrollable area and scrollbars, ensure the viewport +// covers the visible area. +function setScrollTop(cm, val) { + if (Math.abs(cm.doc.scrollTop - val) < 2) { return } + cm.doc.scrollTop = val + if (!gecko) { updateDisplaySimple(cm, {top: val}) } + if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val } + cm.display.scrollbars.setScrollTop(val) + if (gecko) { updateDisplaySimple(cm) } + startWorker(cm, 100) +} +// Sync scroller and scrollbar, ensure the gutter elements are +// aligned. +function setScrollLeft(cm, val, isScroller) { + if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) { return } + val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth) + cm.doc.scrollLeft = val + alignHorizontally(cm) + if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val } + cm.display.scrollbars.setScrollLeft(val) +} + +// Since the delta values reported on mouse wheel events are +// unstandardized between browsers and even browser versions, and +// generally horribly unpredictable, this code starts by measuring +// the scroll effect that the first few mouse wheel events have, +// and, from that, detects the way it can convert deltas to pixel +// offsets afterwards. +// +// The reason we want to know the amount a wheel event will scroll +// is that it gives us a chance to update the display before the +// actual scrolling happens, reducing flickering. + +var wheelSamples = 0; +var wheelPixelsPerUnit = null; +// Fill in a browser-detected starting value on browsers where we +// know one. These don't have to be accurate -- the result of them +// being wrong would just be a slight flicker on the first wheel +// scroll (if it is large enough). +if (ie) { wheelPixelsPerUnit = -.53 } +else if (gecko) { wheelPixelsPerUnit = 15 } +else if (chrome) { wheelPixelsPerUnit = -.7 } +else if (safari) { wheelPixelsPerUnit = -1/3 } + +function wheelEventDelta(e) { + var dx = e.wheelDeltaX, dy = e.wheelDeltaY + if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail } + if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail } + else if (dy == null) { dy = e.wheelDelta } + return {x: dx, y: dy} +} +function wheelEventPixels(e) { + var delta = wheelEventDelta(e) + delta.x *= wheelPixelsPerUnit + delta.y *= wheelPixelsPerUnit + return delta +} + +function onScrollWheel(cm, e) { + var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y + + var display = cm.display, scroll = display.scroller + // Quit if there's nothing to scroll here + var canScrollX = scroll.scrollWidth > scroll.clientWidth + var canScrollY = scroll.scrollHeight > scroll.clientHeight + if (!(dx && canScrollX || dy && canScrollY)) { return } + + // Webkit browsers on OS X abort momentum scrolls when the target + // of the scroll event is removed from the scrollable element. + // This hack (see related code in patchDisplay) makes sure the + // element is kept around. + if (dy && mac && webkit) { + outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) { + for (var i = 0; i < view.length; i++) { + if (view[i].node == cur) { + cm.display.currentWheelTarget = cur + break outer + } + } + } + } + + // On some browsers, horizontal scrolling will cause redraws to + // happen before the gutter has been realigned, causing it to + // wriggle around in a most unseemly way. When we have an + // estimated pixels/delta value, we just handle horizontal + // scrolling entirely here. It'll be slightly off from native, but + // better than glitching out. + if (dx && !gecko && !presto && wheelPixelsPerUnit != null) { + if (dy && canScrollY) + { setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight))) } + setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth))) + // Only prevent default scrolling if vertical scrolling is + // actually possible. Otherwise, it causes vertical scroll + // jitter on OSX trackpads when deltaX is small and deltaY + // is large (issue #3579) + if (!dy || (dy && canScrollY)) + { e_preventDefault(e) } + display.wheelStartX = null // Abort measurement, if in progress + return + } + + // 'Project' the visible viewport to cover the area that is being + // scrolled into view (if we know enough to estimate it). + if (dy && wheelPixelsPerUnit != null) { + var pixels = dy * wheelPixelsPerUnit + var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight + if (pixels < 0) { top = Math.max(0, top + pixels - 50) } + else { bot = Math.min(cm.doc.height, bot + pixels + 50) } + updateDisplaySimple(cm, {top: top, bottom: bot}) + } + + if (wheelSamples < 20) { + if (display.wheelStartX == null) { + display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop + display.wheelDX = dx; display.wheelDY = dy + setTimeout(function () { + if (display.wheelStartX == null) { return } + var movedX = scroll.scrollLeft - display.wheelStartX + var movedY = scroll.scrollTop - display.wheelStartY + var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || + (movedX && display.wheelDX && movedX / display.wheelDX) + display.wheelStartX = display.wheelStartY = null + if (!sample) { return } + wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1) + ++wheelSamples + }, 200) + } else { + display.wheelDX += dx; display.wheelDY += dy + } + } +} + +// SCROLLBARS + +// Prepare DOM reads needed to update the scrollbars. Done in one +// shot to minimize update/measure roundtrips. +function measureForScrollbars(cm) { + var d = cm.display, gutterW = d.gutters.offsetWidth + var docH = Math.round(cm.doc.height + paddingVert(cm.display)) + return { + clientHeight: d.scroller.clientHeight, + viewHeight: d.wrapper.clientHeight, + scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth, + viewWidth: d.wrapper.clientWidth, + barLeft: cm.options.fixedGutter ? gutterW : 0, + docHeight: docH, + scrollHeight: docH + scrollGap(cm) + d.barHeight, + nativeBarWidth: d.nativeBarWidth, + gutterWidth: gutterW + } +} + +function NativeScrollbars(place, scroll, cm) { + this.cm = cm + var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar") + var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar") + place(vert); place(horiz) + + on(vert, "scroll", function () { + if (vert.clientHeight) { scroll(vert.scrollTop, "vertical") } + }) + on(horiz, "scroll", function () { + if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal") } + }) + + this.checkedZeroWidth = false + // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). + if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px" } +} + +NativeScrollbars.prototype = copyObj({ + update: function(measure) { + var needsH = measure.scrollWidth > measure.clientWidth + 1 + var needsV = measure.scrollHeight > measure.clientHeight + 1 + var sWidth = measure.nativeBarWidth + + if (needsV) { + this.vert.style.display = "block" + this.vert.style.bottom = needsH ? sWidth + "px" : "0" + var totalHeight = measure.viewHeight - (needsH ? sWidth : 0) + // A bug in IE8 can cause this value to be negative, so guard it. + this.vert.firstChild.style.height = + Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px" + } else { + this.vert.style.display = "" + this.vert.firstChild.style.height = "0" + } + + if (needsH) { + this.horiz.style.display = "block" + this.horiz.style.right = needsV ? sWidth + "px" : "0" + this.horiz.style.left = measure.barLeft + "px" + var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0) + this.horiz.firstChild.style.width = + (measure.scrollWidth - measure.clientWidth + totalWidth) + "px" + } else { + this.horiz.style.display = "" + this.horiz.firstChild.style.width = "0" + } + + if (!this.checkedZeroWidth && measure.clientHeight > 0) { + if (sWidth == 0) { this.zeroWidthHack() } + this.checkedZeroWidth = true + } + + return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0} + }, + setScrollLeft: function(pos) { + if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos } + if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz) } + }, + setScrollTop: function(pos) { + if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos } + if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert) } + }, + zeroWidthHack: function() { + var w = mac && !mac_geMountainLion ? "12px" : "18px" + this.horiz.style.height = this.vert.style.width = w + this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none" + this.disableHoriz = new Delayed + this.disableVert = new Delayed + }, + enableZeroWidthBar: function(bar, delay) { + bar.style.pointerEvents = "auto" + function maybeDisable() { + // To find out whether the scrollbar is still visible, we + // check whether the element under the pixel in the bottom + // left corner of the scrollbar box is the scrollbar box + // itself (when the bar is still visible) or its filler child + // (when the bar is hidden). If it is still visible, we keep + // it enabled, if it's hidden, we disable pointer events. + var box = bar.getBoundingClientRect() + var elt = document.elementFromPoint(box.left + 1, box.bottom - 1) + if (elt != bar) { bar.style.pointerEvents = "none" } + else { delay.set(1000, maybeDisable) } + } + delay.set(1000, maybeDisable) + }, + clear: function() { + var parent = this.horiz.parentNode + parent.removeChild(this.horiz) + parent.removeChild(this.vert) + } +}, NativeScrollbars.prototype) + +function NullScrollbars() {} + +NullScrollbars.prototype = copyObj({ + update: function() { return {bottom: 0, right: 0} }, + setScrollLeft: function() {}, + setScrollTop: function() {}, + clear: function() {} +}, NullScrollbars.prototype) + +function updateScrollbars(cm, measure) { + if (!measure) { measure = measureForScrollbars(cm) } + var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight + updateScrollbarsInner(cm, measure) + for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) { + if (startWidth != cm.display.barWidth && cm.options.lineWrapping) + { updateHeightsInViewport(cm) } + updateScrollbarsInner(cm, measureForScrollbars(cm)) + startWidth = cm.display.barWidth; startHeight = cm.display.barHeight + } +} + +// Re-synchronize the fake scrollbars with the actual size of the +// content. +function updateScrollbarsInner(cm, measure) { + var d = cm.display + var sizes = d.scrollbars.update(measure) + + d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px" + d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px" + d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent" + + if (sizes.right && sizes.bottom) { + d.scrollbarFiller.style.display = "block" + d.scrollbarFiller.style.height = sizes.bottom + "px" + d.scrollbarFiller.style.width = sizes.right + "px" + } else { d.scrollbarFiller.style.display = "" } + if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { + d.gutterFiller.style.display = "block" + d.gutterFiller.style.height = sizes.bottom + "px" + d.gutterFiller.style.width = measure.gutterWidth + "px" + } else { d.gutterFiller.style.display = "" } +} + +var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars} + +function initScrollbars(cm) { + if (cm.display.scrollbars) { + cm.display.scrollbars.clear() if (cm.display.scrollbars.addClass) - addClass(cm.display.wrapper, cm.display.scrollbars.addClass); + { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass) } } - function updateScrollbars(cm, measure) { - if (!measure) measure = measureForScrollbars(cm); - var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight; - updateScrollbarsInner(cm, measure); - for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) { - if (startWidth != cm.display.barWidth && cm.options.lineWrapping) - updateHeightsInViewport(cm); - updateScrollbarsInner(cm, measureForScrollbars(cm)); - startWidth = cm.display.barWidth; startHeight = cm.display.barHeight; + cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) { + cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller) + // Prevent clicks in the scrollbars from killing focus + on(node, "mousedown", function () { + if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0) } + }) + node.setAttribute("cm-not-content", "true") + }, function (pos, axis) { + if (axis == "horizontal") { setScrollLeft(cm, pos) } + else { setScrollTop(cm, pos) } + }, cm) + if (cm.display.scrollbars.addClass) + { addClass(cm.display.wrapper, cm.display.scrollbars.addClass) } +} + +// SCROLLING THINGS INTO VIEW + +// If an editor sits on the top or bottom of the window, partially +// scrolled out of view, this ensures that the cursor is visible. +function maybeScrollWindow(cm, coords) { + if (signalDOMEvent(cm, "scrollCursorIntoView")) { return } + + var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null + if (coords.top + box.top < 0) { doScroll = true } + else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false } + if (doScroll != null && !phantom) { + var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n top: " + (coords.top - display.viewOffset - paddingTop(cm.display)) + "px;\n height: " + (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + "px;\n left: " + (coords.left) + "px; width: 2px;")) + cm.display.lineSpace.appendChild(scrollNode) + scrollNode.scrollIntoView(doScroll) + cm.display.lineSpace.removeChild(scrollNode) + } +} + +// Scroll a given position into view (immediately), verifying that +// it actually became visible (as line heights are accurately +// measured, the position of something may 'drift' during drawing). +function scrollPosIntoView(cm, pos, end, margin) { + if (margin == null) { margin = 0 } + var coords + for (var limit = 0; limit < 5; limit++) { + var changed = false + coords = cursorCoords(cm, pos) + var endCoords = !end || end == pos ? coords : cursorCoords(cm, end) + var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left), + Math.min(coords.top, endCoords.top) - margin, + Math.max(coords.left, endCoords.left), + Math.max(coords.bottom, endCoords.bottom) + margin) + var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft + if (scrollPos.scrollTop != null) { + setScrollTop(cm, scrollPos.scrollTop) + if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true } } - } - - // Re-synchronize the fake scrollbars with the actual size of the - // content. - function updateScrollbarsInner(cm, measure) { - var d = cm.display; - var sizes = d.scrollbars.update(measure); - - d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"; - d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"; - d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent" - - if (sizes.right && sizes.bottom) { - d.scrollbarFiller.style.display = "block"; - d.scrollbarFiller.style.height = sizes.bottom + "px"; - d.scrollbarFiller.style.width = sizes.right + "px"; - } else d.scrollbarFiller.style.display = ""; - if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { - d.gutterFiller.style.display = "block"; - d.gutterFiller.style.height = sizes.bottom + "px"; - d.gutterFiller.style.width = measure.gutterWidth + "px"; - } else d.gutterFiller.style.display = ""; - } - - // Compute the lines that are visible in a given viewport (defaults - // the the current scroll position). viewport may contain top, - // height, and ensure (see op.scrollToPos) properties. - function visibleLines(display, doc, viewport) { - var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop; - top = Math.floor(top - paddingTop(display)); - var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight; - - var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom); - // Ensure is a {from: {line, ch}, to: {line, ch}} object, and - // forces those lines into the viewport (if possible). - if (viewport && viewport.ensure) { - var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line; - if (ensureFrom < from) { - from = ensureFrom; - to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight); - } else if (Math.min(ensureTo, doc.lastLine()) >= to) { - from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight); - to = ensureTo; - } + if (scrollPos.scrollLeft != null) { + setScrollLeft(cm, scrollPos.scrollLeft) + if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true } } - return {from: from, to: Math.max(to, from + 1)}; + if (!changed) { break } + } + return coords +} + +// Scroll a given set of coordinates into view (immediately). +function scrollIntoView(cm, x1, y1, x2, y2) { + var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2) + if (scrollPos.scrollTop != null) { setScrollTop(cm, scrollPos.scrollTop) } + if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft) } +} + +// Calculate a new scroll position needed to scroll the given +// rectangle into view. Returns an object with scrollTop and +// scrollLeft properties. When these are undefined, the +// vertical/horizontal position does not need to be adjusted. +function calculateScrollPos(cm, x1, y1, x2, y2) { + var display = cm.display, snapMargin = textHeight(cm.display) + if (y1 < 0) { y1 = 0 } + var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop + var screen = displayHeight(cm), result = {} + if (y2 - y1 > screen) { y2 = y1 + screen } + var docBottom = cm.doc.height + paddingVert(display) + var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin + if (y1 < screentop) { + result.scrollTop = atTop ? 0 : y1 + } else if (y2 > screentop + screen) { + var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen) + if (newTop != screentop) { result.scrollTop = newTop } } - // LINE NUMBERS + var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft + var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0) + var tooWide = x2 - x1 > screenw + if (tooWide) { x2 = x1 + screenw } + if (x1 < 10) + { result.scrollLeft = 0 } + else if (x1 < screenleft) + { result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10)) } + else if (x2 > screenw + screenleft - 3) + { result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw } + return result +} - // Re-align line numbers and gutter marks to compensate for - // horizontal scrolling. - function alignHorizontally(cm) { - var display = cm.display, view = display.view; - if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return; - var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; - var gutterW = display.gutters.offsetWidth, left = comp + "px"; - for (var i = 0; i < view.length; i++) if (!view[i].hidden) { - if (cm.options.fixedGutter && view[i].gutter) - view[i].gutter.style.left = left; - var align = view[i].alignable; - if (align) for (var j = 0; j < align.length; j++) - align[j].style.left = left; - } - if (cm.options.fixedGutter) - display.gutters.style.left = (comp + gutterW) + "px"; +// Store a relative adjustment to the scroll position in the current +// operation (to be applied when the operation finishes). +function addToScrollPos(cm, left, top) { + if (left != null || top != null) { resolveScrollToPos(cm) } + if (left != null) + { cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left } + if (top != null) + { cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top } +} + +// Make sure that at the end of the operation the current cursor is +// shown. +function ensureCursorVisible(cm) { + resolveScrollToPos(cm) + var cur = cm.getCursor(), from = cur, to = cur + if (!cm.options.lineWrapping) { + from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur + to = Pos(cur.line, cur.ch + 1) + } + cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true} +} + +// When an operation has its scrollToPos property set, and another +// scroll action is applied before the end of the operation, this +// 'simulates' scrolling that position into view in a cheap way, so +// that the effect of intermediate scroll commands is not ignored. +function resolveScrollToPos(cm) { + var range = cm.curOp.scrollToPos + if (range) { + cm.curOp.scrollToPos = null + var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to) + var sPos = calculateScrollPos(cm, Math.min(from.left, to.left), + Math.min(from.top, to.top) - range.margin, + Math.max(from.right, to.right), + Math.max(from.bottom, to.bottom) + range.margin) + cm.scrollTo(sPos.scrollLeft, sPos.scrollTop) + } +} + +// Operations are used to wrap a series of changes to the editor +// state in such a way that each change won't have to update the +// cursor and display (which would be awkward, slow, and +// error-prone). Instead, display updates are batched and then all +// combined and executed at once. + +var nextOpId = 0 +// Start a new operation. +function startOperation(cm) { + cm.curOp = { + cm: cm, + viewChanged: false, // Flag that indicates that lines might need to be redrawn + startHeight: cm.doc.height, // Used to detect need to update scrollbar + forceUpdate: false, // Used to force a redraw + updateInput: null, // Whether to reset the input textarea + typing: false, // Whether this reset should be careful to leave existing text (for compositing) + changeObjs: null, // Accumulated changes, for firing change events + cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on + cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already + selectionChanged: false, // Whether the selection needs to be redrawn + updateMaxLine: false, // Set when the widest line needs to be determined anew + scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet + scrollToPos: null, // Used to scroll to a specific position + focus: false, + id: ++nextOpId // Unique ID + } + pushOperation(cm.curOp) +} + +// Finish an operation, updating the display and signalling delayed events +function endOperation(cm) { + var op = cm.curOp + finishOperation(op, function (group) { + for (var i = 0; i < group.ops.length; i++) + { group.ops[i].cm.curOp = null } + endOperations(group) + }) +} + +// The DOM updates done when an operation finishes are batched so +// that the minimum number of relayouts are required. +function endOperations(group) { + var ops = group.ops + for (var i = 0; i < ops.length; i++) // Read DOM + { endOperation_R1(ops[i]) } + for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe) + { endOperation_W1(ops[i$1]) } + for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM + { endOperation_R2(ops[i$2]) } + for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe) + { endOperation_W2(ops[i$3]) } + for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM + { endOperation_finish(ops[i$4]) } +} + +function endOperation_R1(op) { + var cm = op.cm, display = cm.display + maybeClipScrollbars(cm) + if (op.updateMaxLine) { findMaxLine(cm) } + + op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null || + op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom || + op.scrollToPos.to.line >= display.viewTo) || + display.maxLineChanged && cm.options.lineWrapping + op.update = op.mustUpdate && + new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate) +} + +function endOperation_W1(op) { + op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update) +} + +function endOperation_R2(op) { + var cm = op.cm, display = cm.display + if (op.updatedDisplay) { updateHeightsInViewport(cm) } + + op.barMeasure = measureForScrollbars(cm) + + // If the max line changed since it was last measured, measure it, + // and ensure the document's width matches it. + // updateDisplay_W2 will use these properties to do the actual resizing + if (display.maxLineChanged && !cm.options.lineWrapping) { + op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3 + cm.display.sizerWidth = op.adjustWidthTo + op.barMeasure.scrollWidth = + Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth) + op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm)) } - // Used to ensure that the line number gutter is still the right - // size for the current document size. Returns true when an update - // is needed. - function maybeUpdateLineNumberWidth(cm) { - if (!cm.options.lineNumbers) return false; - var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; - if (last.length != display.lineNumChars) { - var test = display.measure.appendChild(elt("div", [elt("div", last)], - "CodeMirror-linenumber CodeMirror-gutter-elt")); - var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; - display.lineGutter.style.width = ""; - display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1; - display.lineNumWidth = display.lineNumInnerWidth + padding; - display.lineNumChars = display.lineNumInnerWidth ? last.length : -1; - display.lineGutter.style.width = display.lineNumWidth + "px"; - updateGutterSpace(cm); - return true; - } - return false; + if (op.updatedDisplay || op.selectionChanged) + { op.preparedSelection = display.input.prepareSelection(op.focus) } +} + +function endOperation_W2(op) { + var cm = op.cm + + if (op.adjustWidthTo != null) { + cm.display.sizer.style.minWidth = op.adjustWidthTo + "px" + if (op.maxScrollLeft < cm.doc.scrollLeft) + { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true) } + cm.display.maxLineChanged = false } - function lineNumberFor(options, i) { - return String(options.lineNumberFormatter(i + options.firstLineNumber)); + var takeFocus = op.focus && op.focus == activeElt() && (!document.hasFocus || document.hasFocus()) + if (op.preparedSelection) + { cm.display.input.showSelection(op.preparedSelection, takeFocus) } + if (op.updatedDisplay || op.startHeight != cm.doc.height) + { updateScrollbars(cm, op.barMeasure) } + if (op.updatedDisplay) + { setDocumentHeight(cm, op.barMeasure) } + + if (op.selectionChanged) { restartBlink(cm) } + + if (cm.state.focused && op.updateInput) + { cm.display.input.reset(op.typing) } + if (takeFocus) { ensureFocus(op.cm) } +} + +function endOperation_finish(op) { + var cm = op.cm, display = cm.display, doc = cm.doc + + if (op.updatedDisplay) { postUpdateDisplay(cm, op.update) } + + // Abort mouse wheel delta measurement, when scrolling explicitly + if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos)) + { display.wheelStartX = display.wheelStartY = null } + + // Propagate the scroll position to the actual DOM scroller + if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) { + doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop)) + display.scrollbars.setScrollTop(doc.scrollTop) + display.scroller.scrollTop = doc.scrollTop + } + if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) { + doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft)) + display.scrollbars.setScrollLeft(doc.scrollLeft) + display.scroller.scrollLeft = doc.scrollLeft + alignHorizontally(cm) + } + // If we need to scroll a specific position into view, do so. + if (op.scrollToPos) { + var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from), + clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin) + if (op.scrollToPos.isCursor && cm.state.focused) { maybeScrollWindow(cm, coords) } } - // Computes display.scroller.scrollLeft + display.gutters.offsetWidth, - // but using getBoundingClientRect to get a sub-pixel-accurate - // result. - function compensateForHScroll(display) { - return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left; + // Fire events for markers that are hidden/unidden by editing or + // undoing + var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers + if (hidden) { for (var i = 0; i < hidden.length; ++i) + { if (!hidden[i].lines.length) { signal(hidden[i], "hide") } } } + if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1) + { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide") } } } + + if (display.wrapper.offsetHeight) + { doc.scrollTop = cm.display.scroller.scrollTop } + + // Fire change events, and delayed event handlers + if (op.changeObjs) + { signal(cm, "changes", cm, op.changeObjs) } + if (op.update) + { op.update.finish() } +} + +// Run the given function in an operation +function runInOp(cm, f) { + if (cm.curOp) { return f() } + startOperation(cm) + try { return f() } + finally { endOperation(cm) } +} +// Wraps a function in an operation. Returns the wrapped function. +function operation(cm, f) { + return function() { + if (cm.curOp) { return f.apply(cm, arguments) } + startOperation(cm) + try { return f.apply(cm, arguments) } + finally { endOperation(cm) } } - - // DISPLAY DRAWING - - function DisplayUpdate(cm, viewport, force) { - var display = cm.display; - - this.viewport = viewport; - // Store some values that we'll need later (but don't want to force a relayout for) - this.visible = visibleLines(display, cm.doc, viewport); - this.editorIsHidden = !display.wrapper.offsetWidth; - this.wrapperHeight = display.wrapper.clientHeight; - this.wrapperWidth = display.wrapper.clientWidth; - this.oldDisplayWidth = displayWidth(cm); - this.force = force; - this.dims = getDimensions(cm); - this.events = []; +} +// Used to add methods to editor and doc instances, wrapping them in +// operations. +function methodOp(f) { + return function() { + if (this.curOp) { return f.apply(this, arguments) } + startOperation(this) + try { return f.apply(this, arguments) } + finally { endOperation(this) } } - - DisplayUpdate.prototype.signal = function(emitter, type) { - if (hasHandler(emitter, type)) - this.events.push(arguments); - }; - DisplayUpdate.prototype.finish = function() { - for (var i = 0; i < this.events.length; i++) - signal.apply(null, this.events[i]); - }; - - function maybeClipScrollbars(cm) { - var display = cm.display; - if (!display.scrollbarsClipped && display.scroller.offsetWidth) { - display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth; - display.heightForcer.style.height = scrollGap(cm) + "px"; - display.sizer.style.marginBottom = -display.nativeBarWidth + "px"; - display.sizer.style.borderRightWidth = scrollGap(cm) + "px"; - display.scrollbarsClipped = true; - } +} +function docMethodOp(f) { + return function() { + var cm = this.cm + if (!cm || cm.curOp) { return f.apply(this, arguments) } + startOperation(cm) + try { return f.apply(this, arguments) } + finally { endOperation(cm) } } - - // Does the actual updating of the line display. Bails out - // (returning false) when there is nothing to be done and forced is - // false. - function updateDisplayIfNeeded(cm, update) { - var display = cm.display, doc = cm.doc; - - if (update.editorIsHidden) { - resetView(cm); - return false; - } - - // Bail out if the visible area is already rendered and nothing changed. - if (!update.force && - update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo && - (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) && - display.renderedView == display.view && countDirtyView(cm) == 0) - return false; - - if (maybeUpdateLineNumberWidth(cm)) { - resetView(cm); - update.dims = getDimensions(cm); - } - - // Compute a suitable new viewport (from & to) - var end = doc.first + doc.size; - var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first); - var to = Math.min(end, update.visible.to + cm.options.viewportMargin); - if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom); - if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo); - if (sawCollapsedSpans) { - from = visualLineNo(cm.doc, from); - to = visualLineEndNo(cm.doc, to); - } - - var different = from != display.viewFrom || to != display.viewTo || - display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth; - adjustView(cm, from, to); - - display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom)); - // Position the mover div to align with the current scroll position - cm.display.mover.style.top = display.viewOffset + "px"; - - var toUpdate = countDirtyView(cm); - if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view && - (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo)) - return false; - - // For big changes, we hide the enclosing element during the - // update, since that speeds up the operations on most browsers. - var focused = activeElt(); - if (toUpdate > 4) display.lineDiv.style.display = "none"; - patchDisplay(cm, display.updateLineNumbers, update.dims); - if (toUpdate > 4) display.lineDiv.style.display = ""; - display.renderedView = display.view; - // There might have been a widget with a focused element that got - // hidden or updated, if so re-focus it. - if (focused && activeElt() != focused && focused.offsetHeight) focused.focus(); - - // Prevent selection and cursors from interfering with the scroll - // width and height. - removeChildren(display.cursorDiv); - removeChildren(display.selectionDiv); - display.gutters.style.height = display.sizer.style.minHeight = 0; - - if (different) { - display.lastWrapHeight = update.wrapperHeight; - display.lastWrapWidth = update.wrapperWidth; - startWorker(cm, 400); - } - - display.updateLineNumbers = null; - - return true; - } - - function postUpdateDisplay(cm, update) { - var viewport = update.viewport; - - for (var first = true;; first = false) { - if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) { - // Clip forced viewport to actual scrollable area. - if (viewport && viewport.top != null) - viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; - // Updated line heights might result in the drawn area not - // actually covering the viewport. Keep looping until it does. - update.visible = visibleLines(cm.display, cm.doc, viewport); - if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo) - break; - } - if (!updateDisplayIfNeeded(cm, update)) break; - updateHeightsInViewport(cm); - var barMeasure = measureForScrollbars(cm); - updateSelection(cm); - updateScrollbars(cm, barMeasure); - setDocumentHeight(cm, barMeasure); - } - - update.signal(cm, "update", cm); - if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) { - update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo); - cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo; - } - } - - function updateDisplaySimple(cm, viewport) { - var update = new DisplayUpdate(cm, viewport); - if (updateDisplayIfNeeded(cm, update)) { - updateHeightsInViewport(cm); - postUpdateDisplay(cm, update); - var barMeasure = measureForScrollbars(cm); - updateSelection(cm); - updateScrollbars(cm, barMeasure); - setDocumentHeight(cm, barMeasure); - update.finish(); - } - } - - function setDocumentHeight(cm, measure) { - cm.display.sizer.style.minHeight = measure.docHeight + "px"; - cm.display.heightForcer.style.top = measure.docHeight + "px"; - cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"; - } - - // Read the actual heights of the rendered lines, and update their - // stored heights to match. - function updateHeightsInViewport(cm) { - var display = cm.display; - var prevBottom = display.lineDiv.offsetTop; - for (var i = 0; i < display.view.length; i++) { - var cur = display.view[i], height; - if (cur.hidden) continue; - if (ie && ie_version < 8) { - var bot = cur.node.offsetTop + cur.node.offsetHeight; - height = bot - prevBottom; - prevBottom = bot; - } else { - var box = cur.node.getBoundingClientRect(); - height = box.bottom - box.top; - } - var diff = cur.line.height - height; - if (height < 2) height = textHeight(display); - if (diff > .001 || diff < -.001) { - updateLineHeight(cur.line, height); - updateWidgetHeight(cur.line); - if (cur.rest) for (var j = 0; j < cur.rest.length; j++) - updateWidgetHeight(cur.rest[j]); - } - } - } - - // Read and store the height of line widgets associated with the - // given line. - function updateWidgetHeight(line) { - if (line.widgets) for (var i = 0; i < line.widgets.length; ++i) - line.widgets[i].height = line.widgets[i].node.parentNode.offsetHeight; - } - - // Do a bulk-read of the DOM positions and sizes needed to draw the - // view, so that we don't interleave reading and writing to the DOM. - function getDimensions(cm) { - var d = cm.display, left = {}, width = {}; - var gutterLeft = d.gutters.clientLeft; - for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { - left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft; - width[cm.options.gutters[i]] = n.clientWidth; - } - return {fixedPos: compensateForHScroll(d), - gutterTotalWidth: d.gutters.offsetWidth, - gutterLeft: left, - gutterWidth: width, - wrapperWidth: d.wrapper.clientWidth}; - } - - // Sync the actual display DOM structure with display.view, removing - // nodes for lines that are no longer in view, and creating the ones - // that are not there yet, and updating the ones that are out of - // date. - function patchDisplay(cm, updateNumbersFrom, dims) { - var display = cm.display, lineNumbers = cm.options.lineNumbers; - var container = display.lineDiv, cur = container.firstChild; - - function rm(node) { - var next = node.nextSibling; - // Works around a throw-scroll bug in OS X Webkit - if (webkit && mac && cm.display.currentWheelTarget == node) - node.style.display = "none"; - else - node.parentNode.removeChild(node); - return next; - } - - var view = display.view, lineN = display.viewFrom; - // Loop over the elements in the view, syncing cur (the DOM nodes - // in display.lineDiv) with the view as we go. - for (var i = 0; i < view.length; i++) { - var lineView = view[i]; - if (lineView.hidden) { - } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet - var node = buildLineElement(cm, lineView, lineN, dims); - container.insertBefore(node, cur); - } else { // Already drawn - while (cur != lineView.node) cur = rm(cur); - var updateNumber = lineNumbers && updateNumbersFrom != null && - updateNumbersFrom <= lineN && lineView.lineNumber; - if (lineView.changes) { - if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false; - updateLineForChanges(cm, lineView, lineN, dims); - } - if (updateNumber) { - removeChildren(lineView.lineNumber); - lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN))); - } - cur = lineView.node.nextSibling; - } - lineN += lineView.size; - } - while (cur) cur = rm(cur); - } - - // When an aspect of a line changes, a string is added to - // lineView.changes. This updates the relevant part of the line's - // DOM structure. - function updateLineForChanges(cm, lineView, lineN, dims) { - for (var j = 0; j < lineView.changes.length; j++) { - var type = lineView.changes[j]; - if (type == "text") updateLineText(cm, lineView); - else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims); - else if (type == "class") updateLineClasses(lineView); - else if (type == "widget") updateLineWidgets(cm, lineView, dims); - } - lineView.changes = null; - } - - // Lines with gutter elements, widgets or a background class need to - // be wrapped, and have the extra elements added to the wrapper div - function ensureLineWrapped(lineView) { - if (lineView.node == lineView.text) { - lineView.node = elt("div", null, null, "position: relative"); - if (lineView.text.parentNode) - lineView.text.parentNode.replaceChild(lineView.node, lineView.text); - lineView.node.appendChild(lineView.text); - if (ie && ie_version < 8) lineView.node.style.zIndex = 2; - } - return lineView.node; - } - - function updateLineBackground(lineView) { - var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass; - if (cls) cls += " CodeMirror-linebackground"; - if (lineView.background) { - if (cls) lineView.background.className = cls; - else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; } - } else if (cls) { - var wrap = ensureLineWrapped(lineView); - lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild); - } - } - - // Wrapper around buildLineContent which will reuse the structure - // in display.externalMeasured when possible. - function getLineContent(cm, lineView) { - var ext = cm.display.externalMeasured; - if (ext && ext.line == lineView.line) { - cm.display.externalMeasured = null; - lineView.measure = ext.measure; - return ext.built; - } - return buildLineContent(cm, lineView); - } - - // Redraw the line's text. Interacts with the background and text - // classes because the mode may output tokens that influence these - // classes. - function updateLineText(cm, lineView) { - var cls = lineView.text.className; - var built = getLineContent(cm, lineView); - if (lineView.text == lineView.node) lineView.node = built.pre; - lineView.text.parentNode.replaceChild(built.pre, lineView.text); - lineView.text = built.pre; - if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) { - lineView.bgClass = built.bgClass; - lineView.textClass = built.textClass; - updateLineClasses(lineView); - } else if (cls) { - lineView.text.className = cls; - } - } - - function updateLineClasses(lineView) { - updateLineBackground(lineView); - if (lineView.line.wrapClass) - ensureLineWrapped(lineView).className = lineView.line.wrapClass; - else if (lineView.node != lineView.text) - lineView.node.className = ""; - var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass; - lineView.text.className = textClass || ""; - } - - function updateLineGutter(cm, lineView, lineN, dims) { - if (lineView.gutter) { - lineView.node.removeChild(lineView.gutter); - lineView.gutter = null; - } - if (lineView.gutterBackground) { - lineView.node.removeChild(lineView.gutterBackground); - lineView.gutterBackground = null; - } - if (lineView.line.gutterClass) { - var wrap = ensureLineWrapped(lineView); - lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass, - "left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + - "px; width: " + dims.gutterTotalWidth + "px"); - wrap.insertBefore(lineView.gutterBackground, lineView.text); - } - var markers = lineView.line.gutterMarkers; - if (cm.options.lineNumbers || markers) { - var wrap = ensureLineWrapped(lineView); - var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", "left: " + - (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"); - cm.display.input.setUneditable(gutterWrap); - wrap.insertBefore(gutterWrap, lineView.text); - if (lineView.line.gutterClass) - gutterWrap.className += " " + lineView.line.gutterClass; - if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) - lineView.lineNumber = gutterWrap.appendChild( - elt("div", lineNumberFor(cm.options, lineN), - "CodeMirror-linenumber CodeMirror-gutter-elt", - "left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: " - + cm.display.lineNumInnerWidth + "px")); - if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) { - var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]; - if (found) - gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " + - dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px")); - } - } - } - - function updateLineWidgets(cm, lineView, dims) { - if (lineView.alignable) lineView.alignable = null; - for (var node = lineView.node.firstChild, next; node; node = next) { - var next = node.nextSibling; - if (node.className == "CodeMirror-linewidget") - lineView.node.removeChild(node); - } - insertLineWidgets(cm, lineView, dims); - } - - // Build a line's DOM representation from scratch - function buildLineElement(cm, lineView, lineN, dims) { - var built = getLineContent(cm, lineView); - lineView.text = lineView.node = built.pre; - if (built.bgClass) lineView.bgClass = built.bgClass; - if (built.textClass) lineView.textClass = built.textClass; - - updateLineClasses(lineView); - updateLineGutter(cm, lineView, lineN, dims); - insertLineWidgets(cm, lineView, dims); - return lineView.node; - } - - // A lineView may contain multiple logical lines (when merged by - // collapsed spans). The widgets for all of them need to be drawn. - function insertLineWidgets(cm, lineView, dims) { - insertLineWidgetsFor(cm, lineView.line, lineView, dims, true); - if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++) - insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); - } - - function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) { - if (!line.widgets) return; - var wrap = ensureLineWrapped(lineView); - for (var i = 0, ws = line.widgets; i < ws.length; ++i) { - var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget"); - if (!widget.handleMouseEvents) node.setAttribute("cm-ignore-events", "true"); - positionLineWidget(widget, node, lineView, dims); - cm.display.input.setUneditable(node); - if (allowAbove && widget.above) - wrap.insertBefore(node, lineView.gutter || lineView.text); - else - wrap.appendChild(node); - signalLater(widget, "redraw"); - } - } - - function positionLineWidget(widget, node, lineView, dims) { - if (widget.noHScroll) { - (lineView.alignable || (lineView.alignable = [])).push(node); - var width = dims.wrapperWidth; - node.style.left = dims.fixedPos + "px"; - if (!widget.coverGutter) { - width -= dims.gutterTotalWidth; - node.style.paddingLeft = dims.gutterTotalWidth + "px"; - } - node.style.width = width + "px"; - } - if (widget.coverGutter) { - node.style.zIndex = 5; - node.style.position = "relative"; - if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px"; - } - } - - // POSITION OBJECT - - // A Pos instance represents a position within the text. - var Pos = CodeMirror.Pos = function(line, ch) { - if (!(this instanceof Pos)) return new Pos(line, ch); - this.line = line; this.ch = ch; - }; - - // Compare two positions, return 0 if they are the same, a negative - // number when a is less, and a positive number otherwise. - var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; }; - - function copyPos(x) {return Pos(x.line, x.ch);} - function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; } - function minPos(a, b) { return cmp(a, b) < 0 ? a : b; } - - // INPUT HANDLING - - function ensureFocus(cm) { - if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); } - } - - // This will be set to a {lineWise: bool, text: [string]} object, so - // that, when pasting, we know what kind of selections the copied - // text was made out of. - var lastCopied = null; - - function applyTextInput(cm, inserted, deleted, sel, origin) { - var doc = cm.doc; - cm.display.shift = false; - if (!sel) sel = doc.sel; - - var paste = cm.state.pasteIncoming || origin == "paste"; - var textLines = doc.splitLines(inserted), multiPaste = null - // When pasing N lines into N selections, insert one line per selection - if (paste && sel.ranges.length > 1) { - if (lastCopied && lastCopied.text.join("\n") == inserted) { - if (sel.ranges.length % lastCopied.text.length == 0) { - multiPaste = []; - for (var i = 0; i < lastCopied.text.length; i++) - multiPaste.push(doc.splitLines(lastCopied.text[i])); - } - } else if (textLines.length == sel.ranges.length) { - multiPaste = map(textLines, function(l) { return [l]; }); - } - } - - // Normal behavior is to insert the new text into every selection - for (var i = sel.ranges.length - 1; i >= 0; i--) { - var range = sel.ranges[i]; - var from = range.from(), to = range.to(); - if (range.empty()) { - if (deleted && deleted > 0) // Handle deletion - from = Pos(from.line, from.ch - deleted); - else if (cm.state.overwrite && !paste) // Handle overwrite - to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); - else if (lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted) - from = to = Pos(from.line, 0) - } - var updateInput = cm.curOp.updateInput; - var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines, - origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")}; - makeChange(cm.doc, changeEvent); - signalLater(cm, "inputRead", cm, changeEvent); - } - if (inserted && !paste) - triggerElectric(cm, inserted); - - ensureCursorVisible(cm); - cm.curOp.updateInput = updateInput; - cm.curOp.typing = true; - cm.state.pasteIncoming = cm.state.cutIncoming = false; - } - - function handlePaste(e, cm) { - var pasted = e.clipboardData && e.clipboardData.getData("text/plain"); - if (pasted) { - e.preventDefault(); - if (!cm.isReadOnly() && !cm.options.disableInput) - runInOp(cm, function() { applyTextInput(cm, pasted, 0, null, "paste"); }); - return true; - } - } - - function triggerElectric(cm, inserted) { - // When an 'electric' character is inserted, immediately trigger a reindent - if (!cm.options.electricChars || !cm.options.smartIndent) return; - var sel = cm.doc.sel; - - for (var i = sel.ranges.length - 1; i >= 0; i--) { - var range = sel.ranges[i]; - if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue; - var mode = cm.getModeAt(range.head); - var indented = false; - if (mode.electricChars) { - for (var j = 0; j < mode.electricChars.length; j++) - if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) { - indented = indentLine(cm, range.head.line, "smart"); - break; - } - } else if (mode.electricInput) { - if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch))) - indented = indentLine(cm, range.head.line, "smart"); - } - if (indented) signalLater(cm, "electricInput", cm, range.head.line); - } - } - - function copyableRanges(cm) { - var text = [], ranges = []; - for (var i = 0; i < cm.doc.sel.ranges.length; i++) { - var line = cm.doc.sel.ranges[i].head.line; - var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}; - ranges.push(lineRange); - text.push(cm.getRange(lineRange.anchor, lineRange.head)); - } - return {text: text, ranges: ranges}; - } - - function disableBrowserMagic(field) { - field.setAttribute("autocorrect", "off"); - field.setAttribute("autocapitalize", "off"); - field.setAttribute("spellcheck", "false"); - } - - // TEXTAREA INPUT STYLE - - function TextareaInput(cm) { - this.cm = cm; - // See input.poll and input.reset - this.prevInput = ""; - - // Flag that indicates whether we expect input to appear real soon - // now (after some event like 'keypress' or 'input') and are - // polling intensively. - this.pollingFast = false; - // Self-resetting timeout for the poller - this.polling = new Delayed(); - // Tracks when input.reset has punted to just putting a short - // string into the textarea instead of the full selection. - this.inaccurateSelection = false; - // Used to work around IE issue with selection being forgotten when focus moves away from textarea - this.hasSelection = false; - this.composing = null; - }; - - function hiddenTextarea() { - var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none"); - var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); - // The textarea is kept positioned near the cursor to prevent the - // fact that it'll be scrolled into view on input from scrolling - // our fake cursor out of view. On webkit, when wrap=off, paste is - // very slow. So make the area wide instead. - if (webkit) te.style.width = "1000px"; - else te.setAttribute("wrap", "off"); - // If border: 0; -- iOS fails to open keyboard (issue #1287) - if (ios) te.style.border = "1px solid black"; - disableBrowserMagic(te); - return div; - } - - TextareaInput.prototype = copyObj({ - init: function(display) { - var input = this, cm = this.cm; - - // Wraps and hides input textarea - var div = this.wrapper = hiddenTextarea(); - // The semihidden textarea that is focused when the editor is - // focused, and receives input. - var te = this.textarea = div.firstChild; - display.wrapper.insertBefore(div, display.wrapper.firstChild); - - // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore) - if (ios) te.style.width = "0px"; - - on(te, "input", function() { - if (ie && ie_version >= 9 && input.hasSelection) input.hasSelection = null; - input.poll(); - }); - - on(te, "paste", function(e) { - if (signalDOMEvent(cm, e) || handlePaste(e, cm)) return - - cm.state.pasteIncoming = true; - input.fastPoll(); - }); - - function prepareCopyCut(e) { - if (signalDOMEvent(cm, e)) return - if (cm.somethingSelected()) { - lastCopied = {lineWise: false, text: cm.getSelections()}; - if (input.inaccurateSelection) { - input.prevInput = ""; - input.inaccurateSelection = false; - te.value = lastCopied.text.join("\n"); - selectInput(te); - } - } else if (!cm.options.lineWiseCopyCut) { - return; - } else { - var ranges = copyableRanges(cm); - lastCopied = {lineWise: true, text: ranges.text}; - if (e.type == "cut") { - cm.setSelections(ranges.ranges, null, sel_dontScroll); - } else { - input.prevInput = ""; - te.value = ranges.text.join("\n"); - selectInput(te); - } - } - if (e.type == "cut") cm.state.cutIncoming = true; - } - on(te, "cut", prepareCopyCut); - on(te, "copy", prepareCopyCut); - - on(display.scroller, "paste", function(e) { - if (eventInWidget(display, e) || signalDOMEvent(cm, e)) return; - cm.state.pasteIncoming = true; - input.focus(); - }); - - // Prevent normal selection in the editor (we handle our own) - on(display.lineSpace, "selectstart", function(e) { - if (!eventInWidget(display, e)) e_preventDefault(e); - }); - - on(te, "compositionstart", function() { - var start = cm.getCursor("from"); - if (input.composing) input.composing.range.clear() - input.composing = { - start: start, - range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"}) - }; - }); - on(te, "compositionend", function() { - if (input.composing) { - input.poll(); - input.composing.range.clear(); - input.composing = null; - } - }); - }, - - prepareSelection: function() { - // Redraw the selection and/or cursor - var cm = this.cm, display = cm.display, doc = cm.doc; - var result = prepareSelection(cm); - - // Move the hidden textarea near the cursor to prevent scrolling artifacts - if (cm.options.moveInputWithCursor) { - var headPos = cursorCoords(cm, doc.sel.primary().head, "div"); - var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect(); - result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10, - headPos.top + lineOff.top - wrapOff.top)); - result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10, - headPos.left + lineOff.left - wrapOff.left)); - } - - return result; - }, - - showSelection: function(drawn) { - var cm = this.cm, display = cm.display; - removeChildrenAndAdd(display.cursorDiv, drawn.cursors); - removeChildrenAndAdd(display.selectionDiv, drawn.selection); - if (drawn.teTop != null) { - this.wrapper.style.top = drawn.teTop + "px"; - this.wrapper.style.left = drawn.teLeft + "px"; - } - }, - - // Reset the input to correspond to the selection (or to be empty, - // when not typing and nothing is selected) - reset: function(typing) { - if (this.contextMenuPending) return; - var minimal, selected, cm = this.cm, doc = cm.doc; - if (cm.somethingSelected()) { - this.prevInput = ""; - var range = doc.sel.primary(); - minimal = hasCopyEvent && - (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000); - var content = minimal ? "-" : selected || cm.getSelection(); - this.textarea.value = content; - if (cm.state.focused) selectInput(this.textarea); - if (ie && ie_version >= 9) this.hasSelection = content; - } else if (!typing) { - this.prevInput = this.textarea.value = ""; - if (ie && ie_version >= 9) this.hasSelection = null; - } - this.inaccurateSelection = minimal; - }, - - getField: function() { return this.textarea; }, - - supportsTouch: function() { return false; }, - - focus: function() { - if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) { - try { this.textarea.focus(); } - catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM - } - }, - - blur: function() { this.textarea.blur(); }, - - resetPosition: function() { - this.wrapper.style.top = this.wrapper.style.left = 0; - }, - - receivedFocus: function() { this.slowPoll(); }, - - // Poll for input changes, using the normal rate of polling. This - // runs as long as the editor is focused. - slowPoll: function() { - var input = this; - if (input.pollingFast) return; - input.polling.set(this.cm.options.pollInterval, function() { - input.poll(); - if (input.cm.state.focused) input.slowPoll(); - }); - }, - - // When an event has just come in that is likely to add or change - // something in the input textarea, we poll faster, to ensure that - // the change appears on the screen quickly. - fastPoll: function() { - var missed = false, input = this; - input.pollingFast = true; - function p() { - var changed = input.poll(); - if (!changed && !missed) {missed = true; input.polling.set(60, p);} - else {input.pollingFast = false; input.slowPoll();} - } - input.polling.set(20, p); - }, - - // Read input from the textarea, and update the document to match. - // When something is selected, it is present in the textarea, and - // selected (unless it is huge, in which case a placeholder is - // used). When nothing is selected, the cursor sits after previously - // seen text (can be empty), which is stored in prevInput (we must - // not reset the textarea when typing, because that breaks IME). - poll: function() { - var cm = this.cm, input = this.textarea, prevInput = this.prevInput; - // Since this is called a *lot*, try to bail out as cheaply as - // possible when it is clear that nothing happened. hasSelection - // will be the case when there is a lot of text in the textarea, - // in which case reading its value would be expensive. - if (this.contextMenuPending || !cm.state.focused || - (hasSelection(input) && !prevInput && !this.composing) || - cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq) - return false; - - var text = input.value; - // If nothing changed, bail. - if (text == prevInput && !cm.somethingSelected()) return false; - // Work around nonsensical selection resetting in IE9/10, and - // inexplicable appearance of private area unicode characters on - // some key combos in Mac (#2689). - if (ie && ie_version >= 9 && this.hasSelection === text || - mac && /[\uf700-\uf7ff]/.test(text)) { - cm.display.input.reset(); - return false; - } - - if (cm.doc.sel == cm.display.selForContextMenu) { - var first = text.charCodeAt(0); - if (first == 0x200b && !prevInput) prevInput = "\u200b"; - if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo"); } - } - // Find the part of the input that is actually new - var same = 0, l = Math.min(prevInput.length, text.length); - while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same; - - var self = this; - runInOp(cm, function() { - applyTextInput(cm, text.slice(same), prevInput.length - same, - null, self.composing ? "*compose" : null); - - // Don't leave long text in the textarea, since it makes further polling slow - if (text.length > 1000 || text.indexOf("\n") > -1) input.value = self.prevInput = ""; - else self.prevInput = text; - - if (self.composing) { - self.composing.range.clear(); - self.composing.range = cm.markText(self.composing.start, cm.getCursor("to"), - {className: "CodeMirror-composing"}); - } - }); - return true; - }, - - ensurePolled: function() { - if (this.pollingFast && this.poll()) this.pollingFast = false; - }, - - onKeyPress: function() { - if (ie && ie_version >= 9) this.hasSelection = null; - this.fastPoll(); - }, - - onContextMenu: function(e) { - var input = this, cm = input.cm, display = cm.display, te = input.textarea; - var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; - if (!pos || presto) return; // Opera is difficult. - - // Reset the current text selection only if the click is done outside of the selection - // and 'resetSelectionOnContextMenu' option is true. - var reset = cm.options.resetSelectionOnContextMenu; - if (reset && cm.doc.sel.contains(pos) == -1) - operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); - - var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText; - input.wrapper.style.cssText = "position: absolute" - var wrapperBox = input.wrapper.getBoundingClientRect() - te.style.cssText = "position: absolute; width: 30px; height: 30px; top: " + (e.clientY - wrapperBox.top - 5) + - "px; left: " + (e.clientX - wrapperBox.left - 5) + "px; z-index: 1000; background: " + - (ie ? "rgba(255, 255, 255, .05)" : "transparent") + - "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; - if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712) - display.input.focus(); - if (webkit) window.scrollTo(null, oldScrollY); - display.input.reset(); - // Adds "Select all" to context menu in FF - if (!cm.somethingSelected()) te.value = input.prevInput = " "; - input.contextMenuPending = true; - display.selForContextMenu = cm.doc.sel; - clearTimeout(display.detectingSelectAll); - - // Select-all will be greyed out if there's nothing to select, so - // this adds a zero-width space so that we can later check whether - // it got selected. - function prepareSelectAllHack() { - if (te.selectionStart != null) { - var selected = cm.somethingSelected(); - var extval = "\u200b" + (selected ? te.value : ""); - te.value = "\u21da"; // Used to catch context-menu undo - te.value = extval; - input.prevInput = selected ? "" : "\u200b"; - te.selectionStart = 1; te.selectionEnd = extval.length; - // Re-set this, in case some other handler touched the - // selection in the meantime. - display.selForContextMenu = cm.doc.sel; - } - } - function rehide() { - input.contextMenuPending = false; - input.wrapper.style.cssText = oldWrapperCSS - te.style.cssText = oldCSS; - if (ie && ie_version < 9) display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); - - // Try to detect the user choosing select-all - if (te.selectionStart != null) { - if (!ie || (ie && ie_version < 9)) prepareSelectAllHack(); - var i = 0, poll = function() { - if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 && - te.selectionEnd > 0 && input.prevInput == "\u200b") - operation(cm, commands.selectAll)(cm); - else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500); - else display.input.reset(); - }; - display.detectingSelectAll = setTimeout(poll, 200); - } - } - - if (ie && ie_version >= 9) prepareSelectAllHack(); - if (captureRightClick) { - e_stop(e); - var mouseup = function() { - off(window, "mouseup", mouseup); - setTimeout(rehide, 20); - }; - on(window, "mouseup", mouseup); - } else { - setTimeout(rehide, 50); - } - }, - - readOnlyChanged: function(val) { - if (!val) this.reset(); - }, - - setUneditable: nothing, - - needsContentAttribute: false - }, TextareaInput.prototype); - - // CONTENTEDITABLE INPUT STYLE - - function ContentEditableInput(cm) { - this.cm = cm; - this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null; - this.polling = new Delayed(); - this.gracePeriod = false; - } - - ContentEditableInput.prototype = copyObj({ - init: function(display) { - var input = this, cm = input.cm; - var div = input.div = display.lineDiv; - disableBrowserMagic(div); - - on(div, "paste", function(e) { - if (!signalDOMEvent(cm, e)) handlePaste(e, cm); - }) - - on(div, "compositionstart", function(e) { - var data = e.data; - input.composing = {sel: cm.doc.sel, data: data, startData: data}; - if (!data) return; - var prim = cm.doc.sel.primary(); - var line = cm.getLine(prim.head.line); - var found = line.indexOf(data, Math.max(0, prim.head.ch - data.length)); - if (found > -1 && found <= prim.head.ch) - input.composing.sel = simpleSelection(Pos(prim.head.line, found), - Pos(prim.head.line, found + data.length)); - }); - on(div, "compositionupdate", function(e) { - input.composing.data = e.data; - }); - on(div, "compositionend", function(e) { - var ours = input.composing; - if (!ours) return; - if (e.data != ours.startData && !/\u200b/.test(e.data)) - ours.data = e.data; - // Need a small delay to prevent other code (input event, - // selection polling) from doing damage when fired right after - // compositionend. - setTimeout(function() { - if (!ours.handled) - input.applyComposition(ours); - if (input.composing == ours) - input.composing = null; - }, 50); - }); - - on(div, "touchstart", function() { - input.forceCompositionEnd(); - }); - - on(div, "input", function() { - if (input.composing) return; - if (cm.isReadOnly() || !input.pollContent()) - runInOp(input.cm, function() {regChange(cm);}); - }); - - function onCopyCut(e) { - if (signalDOMEvent(cm, e)) return - if (cm.somethingSelected()) { - lastCopied = {lineWise: false, text: cm.getSelections()}; - if (e.type == "cut") cm.replaceSelection("", null, "cut"); - } else if (!cm.options.lineWiseCopyCut) { - return; - } else { - var ranges = copyableRanges(cm); - lastCopied = {lineWise: true, text: ranges.text}; - if (e.type == "cut") { - cm.operation(function() { - cm.setSelections(ranges.ranges, 0, sel_dontScroll); - cm.replaceSelection("", null, "cut"); - }); - } - } - // iOS exposes the clipboard API, but seems to discard content inserted into it - if (e.clipboardData && !ios) { - e.preventDefault(); - e.clipboardData.clearData(); - e.clipboardData.setData("text/plain", lastCopied.text.join("\n")); - } else { - // Old-fashioned briefly-focus-a-textarea hack - var kludge = hiddenTextarea(), te = kludge.firstChild; - cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild); - te.value = lastCopied.text.join("\n"); - var hadFocus = document.activeElement; - selectInput(te); - setTimeout(function() { - cm.display.lineSpace.removeChild(kludge); - hadFocus.focus(); - }, 50); - } - } - on(div, "copy", onCopyCut); - on(div, "cut", onCopyCut); - }, - - prepareSelection: function() { - var result = prepareSelection(this.cm, false); - result.focus = this.cm.state.focused; - return result; - }, - - showSelection: function(info, takeFocus) { - if (!info || !this.cm.display.view.length) return; - if (info.focus || takeFocus) this.showPrimarySelection(); - this.showMultipleSelections(info); - }, - - showPrimarySelection: function() { - var sel = window.getSelection(), prim = this.cm.doc.sel.primary(); - var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset); - var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset); - if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad && - cmp(minPos(curAnchor, curFocus), prim.from()) == 0 && - cmp(maxPos(curAnchor, curFocus), prim.to()) == 0) - return; - - var start = posToDOM(this.cm, prim.from()); - var end = posToDOM(this.cm, prim.to()); - if (!start && !end) return; - - var view = this.cm.display.view; - var old = sel.rangeCount && sel.getRangeAt(0); - if (!start) { - start = {node: view[0].measure.map[2], offset: 0}; - } else if (!end) { // FIXME dangerously hacky - var measure = view[view.length - 1].measure; - var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map; - end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]}; - } - - try { var rng = range(start.node, start.offset, end.offset, end.node); } - catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible - if (rng) { - if (!gecko && this.cm.state.focused) { - sel.collapse(start.node, start.offset); - if (!rng.collapsed) sel.addRange(rng); - } else { - sel.removeAllRanges(); - sel.addRange(rng); - } - if (old && sel.anchorNode == null) sel.addRange(old); - else if (gecko) this.startGracePeriod(); - } - this.rememberSelection(); - }, - - startGracePeriod: function() { - var input = this; - clearTimeout(this.gracePeriod); - this.gracePeriod = setTimeout(function() { - input.gracePeriod = false; - if (input.selectionChanged()) - input.cm.operation(function() { input.cm.curOp.selectionChanged = true; }); - }, 20); - }, - - showMultipleSelections: function(info) { - removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors); - removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection); - }, - - rememberSelection: function() { - var sel = window.getSelection(); - this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset; - this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset; - }, - - selectionInEditor: function() { - var sel = window.getSelection(); - if (!sel.rangeCount) return false; - var node = sel.getRangeAt(0).commonAncestorContainer; - return contains(this.div, node); - }, - - focus: function() { - if (this.cm.options.readOnly != "nocursor") this.div.focus(); - }, - blur: function() { this.div.blur(); }, - getField: function() { return this.div; }, - - supportsTouch: function() { return true; }, - - receivedFocus: function() { - var input = this; - if (this.selectionInEditor()) - this.pollSelection(); - else - runInOp(this.cm, function() { input.cm.curOp.selectionChanged = true; }); - - function poll() { - if (input.cm.state.focused) { - input.pollSelection(); - input.polling.set(input.cm.options.pollInterval, poll); - } - } - this.polling.set(this.cm.options.pollInterval, poll); - }, - - selectionChanged: function() { - var sel = window.getSelection(); - return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset || - sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset; - }, - - pollSelection: function() { - if (!this.composing && !this.gracePeriod && this.selectionChanged()) { - var sel = window.getSelection(), cm = this.cm; - this.rememberSelection(); - var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); - var head = domToPos(cm, sel.focusNode, sel.focusOffset); - if (anchor && head) runInOp(cm, function() { - setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll); - if (anchor.bad || head.bad) cm.curOp.selectionChanged = true; - }); - } - }, - - pollContent: function() { - var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary(); - var from = sel.from(), to = sel.to(); - if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false; - - var fromIndex; - if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) { - var fromLine = lineNo(display.view[0].line); - var fromNode = display.view[0].node; - } else { - var fromLine = lineNo(display.view[fromIndex].line); - var fromNode = display.view[fromIndex - 1].node.nextSibling; - } - var toIndex = findViewIndex(cm, to.line); - if (toIndex == display.view.length - 1) { - var toLine = display.viewTo - 1; - var toNode = display.lineDiv.lastChild; - } else { - var toLine = lineNo(display.view[toIndex + 1].line) - 1; - var toNode = display.view[toIndex + 1].node.previousSibling; - } - - var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine)); - var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length)); - while (newText.length > 1 && oldText.length > 1) { - if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; } - else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; } - else break; - } - - var cutFront = 0, cutEnd = 0; - var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length); - while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront)) - ++cutFront; - var newBot = lst(newText), oldBot = lst(oldText); - var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0), - oldBot.length - (oldText.length == 1 ? cutFront : 0)); - while (cutEnd < maxCutEnd && - newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) - ++cutEnd; - - newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd); - newText[0] = newText[0].slice(cutFront); - - var chFrom = Pos(fromLine, cutFront); - var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0); - if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) { - replaceRange(cm.doc, newText, chFrom, chTo, "+input"); - return true; - } - }, - - ensurePolled: function() { - this.forceCompositionEnd(); - }, - reset: function() { - this.forceCompositionEnd(); - }, - forceCompositionEnd: function() { - if (!this.composing || this.composing.handled) return; - this.applyComposition(this.composing); - this.composing.handled = true; - this.div.blur(); - this.div.focus(); - }, - applyComposition: function(composing) { - if (this.cm.isReadOnly()) - operation(this.cm, regChange)(this.cm) - else if (composing.data && composing.data != composing.startData) - operation(this.cm, applyTextInput)(this.cm, composing.data, 0, composing.sel); - }, - - setUneditable: function(node) { - node.contentEditable = "false" - }, - - onKeyPress: function(e) { - e.preventDefault(); - if (!this.cm.isReadOnly()) - operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); - }, - - readOnlyChanged: function(val) { - this.div.contentEditable = String(val != "nocursor") - }, - - onContextMenu: nothing, - resetPosition: nothing, - - needsContentAttribute: true - }, ContentEditableInput.prototype); - - function posToDOM(cm, pos) { - var view = findViewForLine(cm, pos.line); - if (!view || view.hidden) return null; - var line = getLine(cm.doc, pos.line); - var info = mapFromLineView(view, line, pos.line); - - var order = getOrder(line), side = "left"; - if (order) { - var partPos = getBidiPartAt(order, pos.ch); - side = partPos % 2 ? "right" : "left"; - } - var result = nodeAndOffsetInLineMap(info.map, pos.ch, side); - result.offset = result.collapse == "right" ? result.end : result.start; - return result; - } - - function badPos(pos, bad) { if (bad) pos.bad = true; return pos; } - - function domToPos(cm, node, offset) { - var lineNode; - if (node == cm.display.lineDiv) { - lineNode = cm.display.lineDiv.childNodes[offset]; - if (!lineNode) return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true); - node = null; offset = 0; +} + +// Updates the display.view data structure for a given change to the +// document. From and to are in pre-change coordinates. Lendiff is +// the amount of lines added or subtracted by the change. This is +// used for changes that span multiple lines, or change the way +// lines are divided into visual lines. regLineChange (below) +// registers single-line changes. +function regChange(cm, from, to, lendiff) { + if (from == null) { from = cm.doc.first } + if (to == null) { to = cm.doc.first + cm.doc.size } + if (!lendiff) { lendiff = 0 } + + var display = cm.display + if (lendiff && to < display.viewTo && + (display.updateLineNumbers == null || display.updateLineNumbers > from)) + { display.updateLineNumbers = from } + + cm.curOp.viewChanged = true + + if (from >= display.viewTo) { // Change after + if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo) + { resetView(cm) } + } else if (to <= display.viewFrom) { // Change before + if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) { + resetView(cm) } else { - for (lineNode = node;; lineNode = lineNode.parentNode) { - if (!lineNode || lineNode == cm.display.lineDiv) return null; - if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) break; - } + display.viewFrom += lendiff + display.viewTo += lendiff } - for (var i = 0; i < cm.display.view.length; i++) { - var lineView = cm.display.view[i]; - if (lineView.node == lineNode) - return locateNodeInLineView(lineView, node, offset); - } - } - - function locateNodeInLineView(lineView, node, offset) { - var wrapper = lineView.text.firstChild, bad = false; - if (!node || !contains(wrapper, node)) return badPos(Pos(lineNo(lineView.line), 0), true); - if (node == wrapper) { - bad = true; - node = wrapper.childNodes[offset]; - offset = 0; - if (!node) { - var line = lineView.rest ? lst(lineView.rest) : lineView.line; - return badPos(Pos(lineNo(line), line.text.length), bad); - } - } - - var textNode = node.nodeType == 3 ? node : null, topNode = node; - if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) { - textNode = node.firstChild; - if (offset) offset = textNode.nodeValue.length; - } - while (topNode.parentNode != wrapper) topNode = topNode.parentNode; - var measure = lineView.measure, maps = measure.maps; - - function find(textNode, topNode, offset) { - for (var i = -1; i < (maps ? maps.length : 0); i++) { - var map = i < 0 ? measure.map : maps[i]; - for (var j = 0; j < map.length; j += 3) { - var curNode = map[j + 2]; - if (curNode == textNode || curNode == topNode) { - var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]); - var ch = map[j] + offset; - if (offset < 0 || curNode != textNode) ch = map[j + (offset ? 1 : 0)]; - return Pos(line, ch); - } - } - } - } - var found = find(textNode, topNode, offset); - if (found) return badPos(found, bad); - - // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems - for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) { - found = find(after, after.firstChild, 0); - if (found) - return badPos(Pos(found.line, found.ch - dist), bad); - else - dist += after.textContent.length; - } - for (var before = topNode.previousSibling, dist = offset; before; before = before.previousSibling) { - found = find(before, before.firstChild, -1); - if (found) - return badPos(Pos(found.line, found.ch + dist), bad); - else - dist += after.textContent.length; - } - } - - function domTextBetween(cm, from, to, fromLine, toLine) { - var text = "", closing = false, lineSep = cm.doc.lineSeparator(); - function recognizeMarker(id) { return function(marker) { return marker.id == id; }; } - function walk(node) { - if (node.nodeType == 1) { - var cmText = node.getAttribute("cm-text"); - if (cmText != null) { - if (cmText == "") cmText = node.textContent.replace(/\u200b/g, ""); - text += cmText; - return; - } - var markerID = node.getAttribute("cm-marker"), range; - if (markerID) { - var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID)); - if (found.length && (range = found[0].find())) - text += getBetween(cm.doc, range.from, range.to).join(lineSep); - return; - } - if (node.getAttribute("contenteditable") == "false") return; - for (var i = 0; i < node.childNodes.length; i++) - walk(node.childNodes[i]); - if (/^(pre|div|p)$/i.test(node.nodeName)) - closing = true; - } else if (node.nodeType == 3) { - var val = node.nodeValue; - if (!val) return; - if (closing) { - text += lineSep; - closing = false; - } - text += val; - } - } - for (;;) { - walk(from); - if (from == to) break; - from = from.nextSibling; - } - return text; - } - - CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput}; - - // SELECTION / CURSOR - - // Selection objects are immutable. A new one is created every time - // the selection changes. A selection is one or more non-overlapping - // (and non-touching) ranges, sorted, and an integer that indicates - // which one is the primary selection (the one that's scrolled into - // view, that getCursor returns, etc). - function Selection(ranges, primIndex) { - this.ranges = ranges; - this.primIndex = primIndex; - } - - Selection.prototype = { - primary: function() { return this.ranges[this.primIndex]; }, - equals: function(other) { - if (other == this) return true; - if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false; - for (var i = 0; i < this.ranges.length; i++) { - var here = this.ranges[i], there = other.ranges[i]; - if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false; - } - return true; - }, - deepCopy: function() { - for (var out = [], i = 0; i < this.ranges.length; i++) - out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); - return new Selection(out, this.primIndex); - }, - somethingSelected: function() { - for (var i = 0; i < this.ranges.length; i++) - if (!this.ranges[i].empty()) return true; - return false; - }, - contains: function(pos, end) { - if (!end) end = pos; - for (var i = 0; i < this.ranges.length; i++) { - var range = this.ranges[i]; - if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) - return i; - } - return -1; - } - }; - - function Range(anchor, head) { - this.anchor = anchor; this.head = head; - } - - Range.prototype = { - from: function() { return minPos(this.anchor, this.head); }, - to: function() { return maxPos(this.anchor, this.head); }, - empty: function() { - return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch; - } - }; - - // Take an unsorted, potentially overlapping set of ranges, and - // build a selection out of it. 'Consumes' ranges array (modifying - // it). - function normalizeSelection(ranges, primIndex) { - var prim = ranges[primIndex]; - ranges.sort(function(a, b) { return cmp(a.from(), b.from()); }); - primIndex = indexOf(ranges, prim); - for (var i = 1; i < ranges.length; i++) { - var cur = ranges[i], prev = ranges[i - 1]; - if (cmp(prev.to(), cur.from()) >= 0) { - var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to()); - var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head; - if (i <= primIndex) --primIndex; - ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to)); - } - } - return new Selection(ranges, primIndex); - } - - function simpleSelection(anchor, head) { - return new Selection([new Range(anchor, head || anchor)], 0); - } - - // Most of the external API clips given positions to make sure they - // actually exist within the document. - function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));} - function clipPos(doc, pos) { - if (pos.line < doc.first) return Pos(doc.first, 0); - var last = doc.first + doc.size - 1; - if (pos.line > last) return Pos(last, getLine(doc, last).text.length); - return clipToLen(pos, getLine(doc, pos.line).text.length); - } - function clipToLen(pos, linelen) { - var ch = pos.ch; - if (ch == null || ch > linelen) return Pos(pos.line, linelen); - else if (ch < 0) return Pos(pos.line, 0); - else return pos; - } - function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;} - function clipPosArray(doc, array) { - for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]); - return out; - } - - // SELECTION UPDATES - - // The 'scroll' parameter given to many of these indicated whether - // the new cursor position should be scrolled into view after - // modifying the selection. - - // If shift is held or the extend flag is set, extends a range to - // include a given position (and optionally a second position). - // Otherwise, simply returns the range between the given positions. - // Used for cursor motion and such. - function extendRange(doc, range, head, other) { - if (doc.cm && doc.cm.display.shift || doc.extend) { - var anchor = range.anchor; - if (other) { - var posBefore = cmp(head, anchor) < 0; - if (posBefore != (cmp(other, anchor) < 0)) { - anchor = head; - head = other; - } else if (posBefore != (cmp(head, other) < 0)) { - head = other; - } - } - return new Range(anchor, head); + } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap + resetView(cm) + } else if (from <= display.viewFrom) { // Top overlap + var cut = viewCuttingPoint(cm, to, to + lendiff, 1) + if (cut) { + display.view = display.view.slice(cut.index) + display.viewFrom = cut.lineN + display.viewTo += lendiff } else { - return new Range(other || head, head); + resetView(cm) } - } - - // Extend the primary selection range, discard the rest. - function extendSelection(doc, head, other, options) { - setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options); - } - - // Extend all selections (pos is an array of selections with length - // equal the number of selections) - function extendSelections(doc, heads, options) { - for (var out = [], i = 0; i < doc.sel.ranges.length; i++) - out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null); - var newSel = normalizeSelection(out, doc.sel.primIndex); - setSelection(doc, newSel, options); - } - - // Updates a single range in the selection. - function replaceOneSelection(doc, i, range, options) { - var ranges = doc.sel.ranges.slice(0); - ranges[i] = range; - setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options); - } - - // Reset the selection to a single range. - function setSimpleSelection(doc, anchor, head, options) { - setSelection(doc, simpleSelection(anchor, head), options); - } - - // Give beforeSelectionChange handlers a change to influence a - // selection update. - function filterSelectionChange(doc, sel, options) { - var obj = { - ranges: sel.ranges, - update: function(ranges) { - this.ranges = []; - for (var i = 0; i < ranges.length; i++) - this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), - clipPos(doc, ranges[i].head)); - }, - origin: options && options.origin - }; - signal(doc, "beforeSelectionChange", doc, obj); - if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj); - if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1); - else return sel; - } - - function setSelectionReplaceHistory(doc, sel, options) { - var done = doc.history.done, last = lst(done); - if (last && last.ranges) { - done[done.length - 1] = sel; - setSelectionNoUndo(doc, sel, options); + } else if (to >= display.viewTo) { // Bottom overlap + var cut$1 = viewCuttingPoint(cm, from, from, -1) + if (cut$1) { + display.view = display.view.slice(0, cut$1.index) + display.viewTo = cut$1.lineN } else { - setSelection(doc, sel, options); + resetView(cm) } - } - - // Set a new selection. - function setSelection(doc, sel, options) { - setSelectionNoUndo(doc, sel, options); - addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options); - } - - function setSelectionNoUndo(doc, sel, options) { - if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) - sel = filterSelectionChange(doc, sel, options); - - var bias = options && options.bias || - (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1); - setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true)); - - if (!(options && options.scroll === false) && doc.cm) - ensureCursorVisible(doc.cm); - } - - function setSelectionInner(doc, sel) { - if (sel.equals(doc.sel)) return; - - doc.sel = sel; - - if (doc.cm) { - doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true; - signalCursorActivity(doc.cm); - } - signalLater(doc, "cursorActivity", doc); - } - - // Verify that the selection does not partially select any atomic - // marked ranges. - function reCheckSelection(doc) { - setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll); - } - - // Return a selection that does not partially select any atomic - // ranges. - function skipAtomicInSelection(doc, sel, bias, mayClear) { - var out; - for (var i = 0; i < sel.ranges.length; i++) { - var range = sel.ranges[i]; - var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]; - var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear); - var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear); - if (out || newAnchor != range.anchor || newHead != range.head) { - if (!out) out = sel.ranges.slice(0, i); - out[i] = new Range(newAnchor, newHead); - } - } - return out ? normalizeSelection(out, sel.primIndex) : sel; - } - - function skipAtomicInner(doc, pos, oldPos, dir, mayClear) { - var line = getLine(doc, pos.line); - if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) { - var sp = line.markedSpans[i], m = sp.marker; - if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) && - (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) { - if (mayClear) { - signal(m, "beforeCursorEnter"); - if (m.explicitlyCleared) { - if (!line.markedSpans) break; - else {--i; continue;} - } - } - if (!m.atomic) continue; - - if (oldPos) { - var near = m.find(dir < 0 ? 1 : -1), diff; - if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft) - near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); - if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0)) - return skipAtomicInner(doc, near, pos, dir, mayClear); - } - - var far = m.find(dir < 0 ? -1 : 1); - if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight) - far = movePos(doc, far, dir, far.line == pos.line ? line : null); - return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null; - } - } - return pos; - } - - // Ensure a given position is not inside an atomic range. - function skipAtomic(doc, pos, oldPos, bias, mayClear) { - var dir = bias || 1; - var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) || - (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) || - skipAtomicInner(doc, pos, oldPos, -dir, mayClear) || - (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true)); - if (!found) { - doc.cantEdit = true; - return Pos(doc.first, 0); - } - return found; - } - - function movePos(doc, pos, dir, line) { - if (dir < 0 && pos.ch == 0) { - if (pos.line > doc.first) return clipPos(doc, Pos(pos.line - 1)); - else return null; - } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) { - if (pos.line < doc.first + doc.size - 1) return Pos(pos.line + 1, 0); - else return null; + } else { // Gap in the middle + var cutTop = viewCuttingPoint(cm, from, from, -1) + var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1) + if (cutTop && cutBot) { + display.view = display.view.slice(0, cutTop.index) + .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN)) + .concat(display.view.slice(cutBot.index)) + display.viewTo += lendiff } else { - return new Pos(pos.line, pos.ch + dir); + resetView(cm) } } - // SELECTION DRAWING - - function updateSelection(cm) { - cm.display.input.showSelection(cm.display.input.prepareSelection()); + var ext = display.externalMeasured + if (ext) { + if (to < ext.lineN) + { ext.lineN += lendiff } + else if (from < ext.lineN + ext.size) + { display.externalMeasured = null } } +} - function prepareSelection(cm, primary) { - var doc = cm.doc, result = {}; - var curFragment = result.cursors = document.createDocumentFragment(); - var selFragment = result.selection = document.createDocumentFragment(); +// Register a change to a single line. Type must be one of "text", +// "gutter", "class", "widget" +function regLineChange(cm, line, type) { + cm.curOp.viewChanged = true + var display = cm.display, ext = cm.display.externalMeasured + if (ext && line >= ext.lineN && line < ext.lineN + ext.size) + { display.externalMeasured = null } - for (var i = 0; i < doc.sel.ranges.length; i++) { - if (primary === false && i == doc.sel.primIndex) continue; - var range = doc.sel.ranges[i]; - if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) continue; - var collapsed = range.empty(); - if (collapsed || cm.options.showCursorWhenSelecting) - drawSelectionCursor(cm, range.head, curFragment); - if (!collapsed) - drawSelectionRange(cm, range, selFragment); - } - return result; - } + if (line < display.viewFrom || line >= display.viewTo) { return } + var lineView = display.view[findViewIndex(cm, line)] + if (lineView.node == null) { return } + var arr = lineView.changes || (lineView.changes = []) + if (indexOf(arr, type) == -1) { arr.push(type) } +} - // Draws a cursor for the given range - function drawSelectionCursor(cm, head, output) { - var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine); +// Clear the view. +function resetView(cm) { + cm.display.viewFrom = cm.display.viewTo = cm.doc.first + cm.display.view = [] + cm.display.viewOffset = 0 +} - var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor")); - cursor.style.left = pos.left + "px"; - cursor.style.top = pos.top + "px"; - cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"; - - if (pos.other) { - // Secondary cursor, shown when on a 'jump' in bi-directional text - var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")); - otherCursor.style.display = ""; - otherCursor.style.left = pos.other.left + "px"; - otherCursor.style.top = pos.other.top + "px"; - otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"; - } - } - - // Draws the given range as a highlighted selection - function drawSelectionRange(cm, range, output) { - var display = cm.display, doc = cm.doc; - var fragment = document.createDocumentFragment(); - var padding = paddingH(cm.display), leftSide = padding.left; - var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right; - - function add(left, top, width, bottom) { - if (top < 0) top = 0; - top = Math.round(top); - bottom = Math.round(bottom); - fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left + - "px; top: " + top + "px; width: " + (width == null ? rightSide - left : width) + - "px; height: " + (bottom - top) + "px")); - } - - function drawForLine(line, fromArg, toArg) { - var lineObj = getLine(doc, line); - var lineLen = lineObj.text.length; - var start, end; - function coords(ch, bias) { - return charCoords(cm, Pos(line, ch), "div", lineObj, bias); - } - - iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) { - var leftPos = coords(from, "left"), rightPos, left, right; - if (from == to) { - rightPos = leftPos; - left = right = leftPos.left; - } else { - rightPos = coords(to - 1, "right"); - if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; } - left = leftPos.left; - right = rightPos.right; - } - if (fromArg == null && from == 0) left = leftSide; - if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part - add(left, leftPos.top, null, leftPos.bottom); - left = leftSide; - if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top); - } - if (toArg == null && to == lineLen) right = rightSide; - if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left) - start = leftPos; - if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right) - end = rightPos; - if (left < leftSide + 1) left = leftSide; - add(left, rightPos.top, right - left, rightPos.bottom); - }); - return {start: start, end: end}; - } - - var sFrom = range.from(), sTo = range.to(); - if (sFrom.line == sTo.line) { - drawForLine(sFrom.line, sFrom.ch, sTo.ch); +function viewCuttingPoint(cm, oldN, newN, dir) { + var index = findViewIndex(cm, oldN), diff, view = cm.display.view + if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size) + { return {index: index, lineN: newN} } + var n = cm.display.viewFrom + for (var i = 0; i < index; i++) + { n += view[i].size } + if (n != oldN) { + if (dir > 0) { + if (index == view.length - 1) { return null } + diff = (n + view[index].size) - oldN + index++ } else { - var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line); - var singleVLine = visualLine(fromLine) == visualLine(toLine); - var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end; - var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start; - if (singleVLine) { - if (leftEnd.top < rightStart.top - 2) { - add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); - add(leftSide, rightStart.top, rightStart.left, rightStart.bottom); - } else { - add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); - } - } - if (leftEnd.bottom < rightStart.top) - add(leftSide, leftEnd.bottom, null, rightStart.top); + diff = n - oldN } - - output.appendChild(fragment); + oldN += diff; newN += diff } - - // Cursor-blinking - function restartBlink(cm) { - if (!cm.state.focused) return; - var display = cm.display; - clearInterval(display.blinker); - var on = true; - display.cursorDiv.style.visibility = ""; - if (cm.options.cursorBlinkRate > 0) - display.blinker = setInterval(function() { - display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; - }, cm.options.cursorBlinkRate); - else if (cm.options.cursorBlinkRate < 0) - display.cursorDiv.style.visibility = "hidden"; + while (visualLineNo(cm.doc, newN) != newN) { + if (index == (dir < 0 ? 0 : view.length - 1)) { return null } + newN += dir * view[index - (dir < 0 ? 1 : 0)].size + index += dir } + return {index: index, lineN: newN} +} - // HIGHLIGHT WORKER - - function startWorker(cm, time) { - if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo) - cm.state.highlight.set(time, bind(highlightWorker, cm)); +// Force the view to cover a given range, adding empty view element +// or clipping off existing ones as needed. +function adjustView(cm, from, to) { + var display = cm.display, view = display.view + if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) { + display.view = buildViewArray(cm, from, to) + display.viewFrom = from + } else { + if (display.viewFrom > from) + { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view) } + else if (display.viewFrom < from) + { display.view = display.view.slice(findViewIndex(cm, from)) } + display.viewFrom = from + if (display.viewTo < to) + { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)) } + else if (display.viewTo > to) + { display.view = display.view.slice(0, findViewIndex(cm, to)) } } + display.viewTo = to +} - function highlightWorker(cm) { - var doc = cm.doc; - if (doc.frontier < doc.first) doc.frontier = doc.first; - if (doc.frontier >= cm.display.viewTo) return; - var end = +new Date + cm.options.workTime; - var state = copyState(doc.mode, getStateBefore(cm, doc.frontier)); - var changedLines = []; - - doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) { - if (doc.frontier >= cm.display.viewFrom) { // Visible - var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength; - var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true); - line.styles = highlighted.styles; - var oldCls = line.styleClasses, newCls = highlighted.classes; - if (newCls) line.styleClasses = newCls; - else if (oldCls) line.styleClasses = null; - var ischange = !oldStyles || oldStyles.length != line.styles.length || - oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass); - for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i]; - if (ischange) changedLines.push(doc.frontier); - line.stateAfter = tooLong ? state : copyState(doc.mode, state); - } else { - if (line.text.length <= cm.options.maxHighlightLength) - processLine(cm, line.text, state); - line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null; - } - ++doc.frontier; - if (+new Date > end) { - startWorker(cm, cm.options.workDelay); - return true; - } - }); - if (changedLines.length) runInOp(cm, function() { - for (var i = 0; i < changedLines.length; i++) - regLineChange(cm, changedLines[i], "text"); - }); +// Count the number of lines in the view whose DOM representation is +// out of date (or nonexistent). +function countDirtyView(cm) { + var view = cm.display.view, dirty = 0 + for (var i = 0; i < view.length; i++) { + var lineView = view[i] + if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty } } + return dirty +} - // Finds the line to start with when starting a parse. Tries to - // find a line with a stateAfter, so that it can start with a - // valid state. If that fails, it returns the line with the - // smallest indentation, which tends to need the least context to - // parse correctly. - function findStartLine(cm, n, precise) { - var minindent, minline, doc = cm.doc; - var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100); - for (var search = n; search > lim; --search) { - if (search <= doc.first) return doc.first; - var line = getLine(doc, search - 1); - if (line.stateAfter && (!precise || search <= doc.frontier)) return search; - var indented = countColumn(line.text, null, cm.options.tabSize); - if (minline == null || minindent > indented) { - minline = search - 1; - minindent = indented; - } - } - return minline; - } +// HIGHLIGHT WORKER - function getStateBefore(cm, n, precise) { - var doc = cm.doc, display = cm.display; - if (!doc.mode.startState) return true; - var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter; - if (!state) state = startState(doc.mode); - else state = copyState(doc.mode, state); - doc.iter(pos, n, function(line) { - processLine(cm, line.text, state); - var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo; - line.stateAfter = save ? copyState(doc.mode, state) : null; - ++pos; - }); - if (precise) doc.frontier = pos; - return state; - } +function startWorker(cm, time) { + if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo) + { cm.state.highlight.set(time, bind(highlightWorker, cm)) } +} - // POSITION MEASUREMENT +function highlightWorker(cm) { + var doc = cm.doc + if (doc.frontier < doc.first) { doc.frontier = doc.first } + if (doc.frontier >= cm.display.viewTo) { return } + var end = +new Date + cm.options.workTime + var state = copyState(doc.mode, getStateBefore(cm, doc.frontier)) + var changedLines = [] - function paddingTop(display) {return display.lineSpace.offsetTop;} - function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;} - function paddingH(display) { - if (display.cachedPaddingH) return display.cachedPaddingH; - var e = removeChildrenAndAdd(display.measure, elt("pre", "x")); - var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle; - var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}; - if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data; - return data; - } - - function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth; } - function displayWidth(cm) { - return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth; - } - function displayHeight(cm) { - return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight; - } - - // Ensure the lineView.wrapping.heights array is populated. This is - // an array of bottom offsets for the lines that make up a drawn - // line. When lineWrapping is on, there might be more than one - // height. - function ensureLineHeights(cm, lineView, rect) { - var wrapping = cm.options.lineWrapping; - var curWidth = wrapping && displayWidth(cm); - if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) { - var heights = lineView.measure.heights = []; - if (wrapping) { - lineView.measure.width = curWidth; - var rects = lineView.text.firstChild.getClientRects(); - for (var i = 0; i < rects.length - 1; i++) { - var cur = rects[i], next = rects[i + 1]; - if (Math.abs(cur.bottom - next.bottom) > 2) - heights.push((cur.bottom + next.top) / 2 - rect.top); - } - } - heights.push(rect.bottom - rect.top); - } - } - - // Find a line map (mapping character offsets to text nodes) and a - // measurement cache for the given line number. (A line view might - // contain multiple lines when collapsed ranges are present.) - function mapFromLineView(lineView, line, lineN) { - if (lineView.line == line) - return {map: lineView.measure.map, cache: lineView.measure.cache}; - for (var i = 0; i < lineView.rest.length; i++) - if (lineView.rest[i] == line) - return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]}; - for (var i = 0; i < lineView.rest.length; i++) - if (lineNo(lineView.rest[i]) > lineN) - return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true}; - } - - // Render a line into the hidden node display.externalMeasured. Used - // when measurement is needed for a line that's not in the viewport. - function updateExternalMeasurement(cm, line) { - line = visualLine(line); - var lineN = lineNo(line); - var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN); - view.lineN = lineN; - var built = view.built = buildLineContent(cm, view); - view.text = built.pre; - removeChildrenAndAdd(cm.display.lineMeasure, built.pre); - return view; - } - - // Get a {top, bottom, left, right} box (in line-local coordinates) - // for a given character. - function measureChar(cm, line, ch, bias) { - return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias); - } - - // Find a line view that corresponds to the given line number. - function findViewForLine(cm, lineN) { - if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo) - return cm.display.view[findViewIndex(cm, lineN)]; - var ext = cm.display.externalMeasured; - if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) - return ext; - } - - // Measurement can be split in two steps, the set-up work that - // applies to the whole line, and the measurement of the actual - // character. Functions like coordsChar, that need to do a lot of - // measurements in a row, can thus ensure that the set-up work is - // only done once. - function prepareMeasureForLine(cm, line) { - var lineN = lineNo(line); - var view = findViewForLine(cm, lineN); - if (view && !view.text) { - view = null; - } else if (view && view.changes) { - updateLineForChanges(cm, view, lineN, getDimensions(cm)); - cm.curOp.forceUpdate = true; - } - if (!view) - view = updateExternalMeasurement(cm, line); - - var info = mapFromLineView(view, line, lineN); - return { - line: line, view: view, rect: null, - map: info.map, cache: info.cache, before: info.before, - hasHeights: false - }; - } - - // Given a prepared measurement object, measures the position of an - // actual character (or fetches it from the cache). - function measureCharPrepared(cm, prepared, ch, bias, varHeight) { - if (prepared.before) ch = -1; - var key = ch + (bias || ""), found; - if (prepared.cache.hasOwnProperty(key)) { - found = prepared.cache[key]; + doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) { + if (doc.frontier >= cm.display.viewFrom) { // Visible + var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength + var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true) + line.styles = highlighted.styles + var oldCls = line.styleClasses, newCls = highlighted.classes + if (newCls) { line.styleClasses = newCls } + else if (oldCls) { line.styleClasses = null } + var ischange = !oldStyles || oldStyles.length != line.styles.length || + oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass) + for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i] } + if (ischange) { changedLines.push(doc.frontier) } + line.stateAfter = tooLong ? state : copyState(doc.mode, state) } else { - if (!prepared.rect) - prepared.rect = prepared.view.text.getBoundingClientRect(); - if (!prepared.hasHeights) { - ensureLineHeights(cm, prepared.view, prepared.rect); - prepared.hasHeights = true; - } - found = measureCharInner(cm, prepared, ch, bias); - if (!found.bogus) prepared.cache[key] = found; + if (line.text.length <= cm.options.maxHighlightLength) + { processLine(cm, line.text, state) } + line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null } - return {left: found.left, right: found.right, - top: varHeight ? found.rtop : found.top, - bottom: varHeight ? found.rbottom : found.bottom}; - } - - var nullRect = {left: 0, right: 0, top: 0, bottom: 0}; - - function nodeAndOffsetInLineMap(map, ch, bias) { - var node, start, end, collapse; - // First, search the line map for the text node corresponding to, - // or closest to, the target character. - for (var i = 0; i < map.length; i += 3) { - var mStart = map[i], mEnd = map[i + 1]; - if (ch < mStart) { - start = 0; end = 1; - collapse = "left"; - } else if (ch < mEnd) { - start = ch - mStart; - end = start + 1; - } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) { - end = mEnd - mStart; - start = end - 1; - if (ch >= mEnd) collapse = "right"; - } - if (start != null) { - node = map[i + 2]; - if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) - collapse = bias; - if (bias == "left" && start == 0) - while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) { - node = map[(i -= 3) + 2]; - collapse = "left"; - } - if (bias == "right" && start == mEnd - mStart) - while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) { - node = map[(i += 3) + 2]; - collapse = "right"; - } - break; - } + ++doc.frontier + if (+new Date > end) { + startWorker(cm, cm.options.workDelay) + return true } - return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}; + }) + if (changedLines.length) { runInOp(cm, function () { + for (var i = 0; i < changedLines.length; i++) + { regLineChange(cm, changedLines[i], "text") } + }) } +} + +// DISPLAY DRAWING + +function DisplayUpdate(cm, viewport, force) { + var display = cm.display + + this.viewport = viewport + // Store some values that we'll need later (but don't want to force a relayout for) + this.visible = visibleLines(display, cm.doc, viewport) + this.editorIsHidden = !display.wrapper.offsetWidth + this.wrapperHeight = display.wrapper.clientHeight + this.wrapperWidth = display.wrapper.clientWidth + this.oldDisplayWidth = displayWidth(cm) + this.force = force + this.dims = getDimensions(cm) + this.events = [] +} + +DisplayUpdate.prototype.signal = function(emitter, type) { + if (hasHandler(emitter, type)) + { this.events.push(arguments) } +} +DisplayUpdate.prototype.finish = function() { + var this$1 = this; + + for (var i = 0; i < this.events.length; i++) + { signal.apply(null, this$1.events[i]) } +} + +function maybeClipScrollbars(cm) { + var display = cm.display + if (!display.scrollbarsClipped && display.scroller.offsetWidth) { + display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth + display.heightForcer.style.height = scrollGap(cm) + "px" + display.sizer.style.marginBottom = -display.nativeBarWidth + "px" + display.sizer.style.borderRightWidth = scrollGap(cm) + "px" + display.scrollbarsClipped = true + } +} + +// Does the actual updating of the line display. Bails out +// (returning false) when there is nothing to be done and forced is +// false. +function updateDisplayIfNeeded(cm, update) { + var display = cm.display, doc = cm.doc + + if (update.editorIsHidden) { + resetView(cm) + return false } - function getUsefulRect(rects, bias) { - var rect = nullRect - if (bias == "left") for (var i = 0; i < rects.length; i++) { - if ((rect = rects[i]).left != rect.right) break - } else for (var i = rects.length - 1; i >= 0; i--) { - if ((rect = rects[i]).left != rect.right) break + // Bail out if the visible area is already rendered and nothing changed. + if (!update.force && + update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo && + (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) && + display.renderedView == display.view && countDirtyView(cm) == 0) + { return false } + + if (maybeUpdateLineNumberWidth(cm)) { + resetView(cm) + update.dims = getDimensions(cm) + } + + // Compute a suitable new viewport (from & to) + var end = doc.first + doc.size + var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first) + var to = Math.min(end, update.visible.to + cm.options.viewportMargin) + if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom) } + if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo) } + if (sawCollapsedSpans) { + from = visualLineNo(cm.doc, from) + to = visualLineEndNo(cm.doc, to) + } + + var different = from != display.viewFrom || to != display.viewTo || + display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth + adjustView(cm, from, to) + + display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom)) + // Position the mover div to align with the current scroll position + cm.display.mover.style.top = display.viewOffset + "px" + + var toUpdate = countDirtyView(cm) + if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view && + (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo)) + { return false } + + // For big changes, we hide the enclosing element during the + // update, since that speeds up the operations on most browsers. + var focused = activeElt() + if (toUpdate > 4) { display.lineDiv.style.display = "none" } + patchDisplay(cm, display.updateLineNumbers, update.dims) + if (toUpdate > 4) { display.lineDiv.style.display = "" } + display.renderedView = display.view + // There might have been a widget with a focused element that got + // hidden or updated, if so re-focus it. + if (focused && activeElt() != focused && focused.offsetHeight) { focused.focus() } + + // Prevent selection and cursors from interfering with the scroll + // width and height. + removeChildren(display.cursorDiv) + removeChildren(display.selectionDiv) + display.gutters.style.height = display.sizer.style.minHeight = 0 + + if (different) { + display.lastWrapHeight = update.wrapperHeight + display.lastWrapWidth = update.wrapperWidth + startWorker(cm, 400) + } + + display.updateLineNumbers = null + + return true +} + +function postUpdateDisplay(cm, update) { + var viewport = update.viewport + + for (var first = true;; first = false) { + if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) { + // Clip forced viewport to actual scrollable area. + if (viewport && viewport.top != null) + { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)} } + // Updated line heights might result in the drawn area not + // actually covering the viewport. Keep looping until it does. + update.visible = visibleLines(cm.display, cm.doc, viewport) + if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo) + { break } } - return rect + if (!updateDisplayIfNeeded(cm, update)) { break } + updateHeightsInViewport(cm) + var barMeasure = measureForScrollbars(cm) + updateSelection(cm) + updateScrollbars(cm, barMeasure) + setDocumentHeight(cm, barMeasure) } - function measureCharInner(cm, prepared, ch, bias) { - var place = nodeAndOffsetInLineMap(prepared.map, ch, bias); - var node = place.node, start = place.start, end = place.end, collapse = place.collapse; - - var rect; - if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates. - for (var i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned - while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) --start; - while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) ++end; - if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) - rect = node.parentNode.getBoundingClientRect(); - else - rect = getUsefulRect(range(node, start, end).getClientRects(), bias) - if (rect.left || rect.right || start == 0) break; - end = start; - start = start - 1; - collapse = "right"; - } - if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect); - } else { // If it is a widget, simply get the box for the whole widget. - if (start > 0) collapse = bias = "right"; - var rects; - if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1) - rect = rects[bias == "right" ? rects.length - 1 : 0]; - else - rect = node.getBoundingClientRect(); - } - if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) { - var rSpan = node.parentNode.getClientRects()[0]; - if (rSpan) - rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; - else - rect = nullRect; - } - - var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top; - var mid = (rtop + rbot) / 2; - var heights = prepared.view.measure.heights; - for (var i = 0; i < heights.length - 1; i++) - if (mid < heights[i]) break; - var top = i ? heights[i - 1] : 0, bot = heights[i]; - var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left, - right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left, - top: top, bottom: bot}; - if (!rect.left && !rect.right) result.bogus = true; - if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; } - - return result; + update.signal(cm, "update", cm) + if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) { + update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo) + cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo } +} - // Work around problem with bounding client rects on ranges being - // returned incorrectly when zoomed on IE10 and below. - function maybeUpdateRectForZooming(measure, rect) { - if (!window.screen || screen.logicalXDPI == null || - screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure)) - return rect; - var scaleX = screen.logicalXDPI / screen.deviceXDPI; - var scaleY = screen.logicalYDPI / screen.deviceYDPI; - return {left: rect.left * scaleX, right: rect.right * scaleX, - top: rect.top * scaleY, bottom: rect.bottom * scaleY}; +function updateDisplaySimple(cm, viewport) { + var update = new DisplayUpdate(cm, viewport) + if (updateDisplayIfNeeded(cm, update)) { + updateHeightsInViewport(cm) + postUpdateDisplay(cm, update) + var barMeasure = measureForScrollbars(cm) + updateSelection(cm) + updateScrollbars(cm, barMeasure) + setDocumentHeight(cm, barMeasure) + update.finish() } +} - function clearLineMeasurementCacheFor(lineView) { - if (lineView.measure) { - lineView.measure.cache = {}; - lineView.measure.heights = null; - if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++) - lineView.measure.caches[i] = {}; - } - } +// Sync the actual display DOM structure with display.view, removing +// nodes for lines that are no longer in view, and creating the ones +// that are not there yet, and updating the ones that are out of +// date. +function patchDisplay(cm, updateNumbersFrom, dims) { + var display = cm.display, lineNumbers = cm.options.lineNumbers + var container = display.lineDiv, cur = container.firstChild - function clearLineMeasurementCache(cm) { - cm.display.externalMeasure = null; - removeChildren(cm.display.lineMeasure); - for (var i = 0; i < cm.display.view.length; i++) - clearLineMeasurementCacheFor(cm.display.view[i]); - } - - function clearCaches(cm) { - clearLineMeasurementCache(cm); - cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null; - if (!cm.options.lineWrapping) cm.display.maxLineChanged = true; - cm.display.lineNumChars = null; - } - - function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; } - function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; } - - // Converts a {top, bottom, left, right} box from line-local - // coordinates into another coordinate system. Context may be one of - // "line", "div" (display.lineDiv), "local"/null (editor), "window", - // or "page". - function intoCoordSystem(cm, lineObj, rect, context) { - if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) { - var size = widgetHeight(lineObj.widgets[i]); - rect.top += size; rect.bottom += size; - } - if (context == "line") return rect; - if (!context) context = "local"; - var yOff = heightAtLine(lineObj); - if (context == "local") yOff += paddingTop(cm.display); - else yOff -= cm.display.viewOffset; - if (context == "page" || context == "window") { - var lOff = cm.display.lineSpace.getBoundingClientRect(); - yOff += lOff.top + (context == "window" ? 0 : pageScrollY()); - var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()); - rect.left += xOff; rect.right += xOff; - } - rect.top += yOff; rect.bottom += yOff; - return rect; - } - - // Coverts a box from "div" coords to another coordinate system. - // Context may be "window", "page", "div", or "local"/null. - function fromCoordSystem(cm, coords, context) { - if (context == "div") return coords; - var left = coords.left, top = coords.top; - // First move into "page" coordinate system - if (context == "page") { - left -= pageScrollX(); - top -= pageScrollY(); - } else if (context == "local" || !context) { - var localBox = cm.display.sizer.getBoundingClientRect(); - left += localBox.left; - top += localBox.top; - } - - var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect(); - return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}; - } - - function charCoords(cm, pos, context, lineObj, bias) { - if (!lineObj) lineObj = getLine(cm.doc, pos.line); - return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context); - } - - // Returns a box for a given cursor position, which may have an - // 'other' property containing the position of the secondary cursor - // on a bidi boundary. - function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) { - lineObj = lineObj || getLine(cm.doc, pos.line); - if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj); - function get(ch, right) { - var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight); - if (right) m.left = m.right; else m.right = m.left; - return intoCoordSystem(cm, lineObj, m, context); - } - function getBidi(ch, partPos) { - var part = order[partPos], right = part.level % 2; - if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) { - part = order[--partPos]; - ch = bidiRight(part) - (part.level % 2 ? 0 : 1); - right = true; - } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) { - part = order[++partPos]; - ch = bidiLeft(part) - part.level % 2; - right = false; - } - if (right && ch == part.to && ch > part.from) return get(ch - 1); - return get(ch, right); - } - var order = getOrder(lineObj), ch = pos.ch; - if (!order) return get(ch); - var partPos = getBidiPartAt(order, ch); - var val = getBidi(ch, partPos); - if (bidiOther != null) val.other = getBidi(ch, bidiOther); - return val; - } - - // Used to cheaply estimate the coordinates for a position. Used for - // intermediate scroll updates. - function estimateCoords(cm, pos) { - var left = 0, pos = clipPos(cm.doc, pos); - if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch; - var lineObj = getLine(cm.doc, pos.line); - var top = heightAtLine(lineObj) + paddingTop(cm.display); - return {left: left, right: left, top: top, bottom: top + lineObj.height}; - } - - // Positions returned by coordsChar contain some extra information. - // xRel is the relative x position of the input coordinates compared - // to the found position (so xRel > 0 means the coordinates are to - // the right of the character position, for example). When outside - // is true, that means the coordinates lie outside the line's - // vertical range. - function PosWithInfo(line, ch, outside, xRel) { - var pos = Pos(line, ch); - pos.xRel = xRel; - if (outside) pos.outside = true; - return pos; - } - - // Compute the character position closest to the given coordinates. - // Input must be lineSpace-local ("div" coordinate system). - function coordsChar(cm, x, y) { - var doc = cm.doc; - y += cm.display.viewOffset; - if (y < 0) return PosWithInfo(doc.first, 0, true, -1); - var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1; - if (lineN > last) - return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1); - if (x < 0) x = 0; - - var lineObj = getLine(doc, lineN); - for (;;) { - var found = coordsCharInner(cm, lineObj, lineN, x, y); - var merged = collapsedSpanAtEnd(lineObj); - var mergedPos = merged && merged.find(0, true); - if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0)) - lineN = lineNo(lineObj = mergedPos.to.line); - else - return found; - } - } - - function coordsCharInner(cm, lineObj, lineNo, x, y) { - var innerOff = y - heightAtLine(lineObj); - var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth; - var preparedMeasure = prepareMeasureForLine(cm, lineObj); - - function getX(ch) { - var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure); - wrongLine = true; - if (innerOff > sp.bottom) return sp.left - adjust; - else if (innerOff < sp.top) return sp.left + adjust; - else wrongLine = false; - return sp.left; - } - - var bidi = getOrder(lineObj), dist = lineObj.text.length; - var from = lineLeft(lineObj), to = lineRight(lineObj); - var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine; - - if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1); - // Do a binary search between these bounds. - for (;;) { - if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) { - var ch = x < fromX || x - fromX <= toX - x ? from : to; - var outside = ch == from ? fromOutside : toOutside - var xDiff = x - (ch == from ? fromX : toX); - // This is a kludge to handle the case where the coordinates - // are after a line-wrapped line. We should replace it with a - // more general handling of cursor positions around line - // breaks. (Issue #4078) - if (toOutside && !bidi && !/\s/.test(lineObj.text.charAt(ch)) && xDiff > 0 && - ch < lineObj.text.length && preparedMeasure.view.measure.heights.length > 1) { - var charSize = measureCharPrepared(cm, preparedMeasure, ch, "right"); - if (innerOff <= charSize.bottom && innerOff >= charSize.top && Math.abs(x - charSize.right) < xDiff) { - outside = false - ch++ - xDiff = x - charSize.right - } - } - while (isExtendingChar(lineObj.text.charAt(ch))) ++ch; - var pos = PosWithInfo(lineNo, ch, outside, xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0); - return pos; - } - var step = Math.ceil(dist / 2), middle = from + step; - if (bidi) { - middle = from; - for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1); - } - var middleX = getX(middle); - if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;} - else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;} - } - } - - var measureText; - // Compute the default text height. - function textHeight(display) { - if (display.cachedTextHeight != null) return display.cachedTextHeight; - if (measureText == null) { - measureText = elt("pre"); - // Measure a bunch of lines, for browsers that compute - // fractional heights. - for (var i = 0; i < 49; ++i) { - measureText.appendChild(document.createTextNode("x")); - measureText.appendChild(elt("br")); - } - measureText.appendChild(document.createTextNode("x")); - } - removeChildrenAndAdd(display.measure, measureText); - var height = measureText.offsetHeight / 50; - if (height > 3) display.cachedTextHeight = height; - removeChildren(display.measure); - return height || 1; - } - - // Compute the default character width. - function charWidth(display) { - if (display.cachedCharWidth != null) return display.cachedCharWidth; - var anchor = elt("span", "xxxxxxxxxx"); - var pre = elt("pre", [anchor]); - removeChildrenAndAdd(display.measure, pre); - var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10; - if (width > 2) display.cachedCharWidth = width; - return width || 10; - } - - // OPERATIONS - - // Operations are used to wrap a series of changes to the editor - // state in such a way that each change won't have to update the - // cursor and display (which would be awkward, slow, and - // error-prone). Instead, display updates are batched and then all - // combined and executed at once. - - var operationGroup = null; - - var nextOpId = 0; - // Start a new operation. - function startOperation(cm) { - cm.curOp = { - cm: cm, - viewChanged: false, // Flag that indicates that lines might need to be redrawn - startHeight: cm.doc.height, // Used to detect need to update scrollbar - forceUpdate: false, // Used to force a redraw - updateInput: null, // Whether to reset the input textarea - typing: false, // Whether this reset should be careful to leave existing text (for compositing) - changeObjs: null, // Accumulated changes, for firing change events - cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on - cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already - selectionChanged: false, // Whether the selection needs to be redrawn - updateMaxLine: false, // Set when the widest line needs to be determined anew - scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet - scrollToPos: null, // Used to scroll to a specific position - focus: false, - id: ++nextOpId // Unique ID - }; - if (operationGroup) { - operationGroup.ops.push(cm.curOp); - } else { - cm.curOp.ownsGroup = operationGroup = { - ops: [cm.curOp], - delayedCallbacks: [] - }; - } - } - - function fireCallbacksForOps(group) { - // Calls delayed callbacks and cursorActivity handlers until no - // new ones appear - var callbacks = group.delayedCallbacks, i = 0; - do { - for (; i < callbacks.length; i++) - callbacks[i].call(null); - for (var j = 0; j < group.ops.length; j++) { - var op = group.ops[j]; - if (op.cursorActivityHandlers) - while (op.cursorActivityCalled < op.cursorActivityHandlers.length) - op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); - } - } while (i < callbacks.length); - } - - // Finish an operation, updating the display and signalling delayed events - function endOperation(cm) { - var op = cm.curOp, group = op.ownsGroup; - if (!group) return; - - try { fireCallbacksForOps(group); } - finally { - operationGroup = null; - for (var i = 0; i < group.ops.length; i++) - group.ops[i].cm.curOp = null; - endOperations(group); - } - } - - // The DOM updates done when an operation finishes are batched so - // that the minimum number of relayouts are required. - function endOperations(group) { - var ops = group.ops; - for (var i = 0; i < ops.length; i++) // Read DOM - endOperation_R1(ops[i]); - for (var i = 0; i < ops.length; i++) // Write DOM (maybe) - endOperation_W1(ops[i]); - for (var i = 0; i < ops.length; i++) // Read DOM - endOperation_R2(ops[i]); - for (var i = 0; i < ops.length; i++) // Write DOM (maybe) - endOperation_W2(ops[i]); - for (var i = 0; i < ops.length; i++) // Read DOM - endOperation_finish(ops[i]); - } - - function endOperation_R1(op) { - var cm = op.cm, display = cm.display; - maybeClipScrollbars(cm); - if (op.updateMaxLine) findMaxLine(cm); - - op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null || - op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom || - op.scrollToPos.to.line >= display.viewTo) || - display.maxLineChanged && cm.options.lineWrapping; - op.update = op.mustUpdate && - new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate); - } - - function endOperation_W1(op) { - op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update); - } - - function endOperation_R2(op) { - var cm = op.cm, display = cm.display; - if (op.updatedDisplay) updateHeightsInViewport(cm); - - op.barMeasure = measureForScrollbars(cm); - - // If the max line changed since it was last measured, measure it, - // and ensure the document's width matches it. - // updateDisplay_W2 will use these properties to do the actual resizing - if (display.maxLineChanged && !cm.options.lineWrapping) { - op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3; - cm.display.sizerWidth = op.adjustWidthTo; - op.barMeasure.scrollWidth = - Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth); - op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm)); - } - - if (op.updatedDisplay || op.selectionChanged) - op.preparedSelection = display.input.prepareSelection(op.focus); - } - - function endOperation_W2(op) { - var cm = op.cm; - - if (op.adjustWidthTo != null) { - cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"; - if (op.maxScrollLeft < cm.doc.scrollLeft) - setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); - cm.display.maxLineChanged = false; - } - - var takeFocus = op.focus && op.focus == activeElt() && (!document.hasFocus || document.hasFocus()) - if (op.preparedSelection) - cm.display.input.showSelection(op.preparedSelection, takeFocus); - if (op.updatedDisplay || op.startHeight != cm.doc.height) - updateScrollbars(cm, op.barMeasure); - if (op.updatedDisplay) - setDocumentHeight(cm, op.barMeasure); - - if (op.selectionChanged) restartBlink(cm); - - if (cm.state.focused && op.updateInput) - cm.display.input.reset(op.typing); - if (takeFocus) ensureFocus(op.cm); - } - - function endOperation_finish(op) { - var cm = op.cm, display = cm.display, doc = cm.doc; - - if (op.updatedDisplay) postUpdateDisplay(cm, op.update); - - // Abort mouse wheel delta measurement, when scrolling explicitly - if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos)) - display.wheelStartX = display.wheelStartY = null; - - // Propagate the scroll position to the actual DOM scroller - if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) { - doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop)); - display.scrollbars.setScrollTop(doc.scrollTop); - display.scroller.scrollTop = doc.scrollTop; - } - if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) { - doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft)); - display.scrollbars.setScrollLeft(doc.scrollLeft); - display.scroller.scrollLeft = doc.scrollLeft; - alignHorizontally(cm); - } - // If we need to scroll a specific position into view, do so. - if (op.scrollToPos) { - var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from), - clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin); - if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords); - } - - // Fire events for markers that are hidden/unidden by editing or - // undoing - var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; - if (hidden) for (var i = 0; i < hidden.length; ++i) - if (!hidden[i].lines.length) signal(hidden[i], "hide"); - if (unhidden) for (var i = 0; i < unhidden.length; ++i) - if (unhidden[i].lines.length) signal(unhidden[i], "unhide"); - - if (display.wrapper.offsetHeight) - doc.scrollTop = cm.display.scroller.scrollTop; - - // Fire change events, and delayed event handlers - if (op.changeObjs) - signal(cm, "changes", cm, op.changeObjs); - if (op.update) - op.update.finish(); - } - - // Run the given function in an operation - function runInOp(cm, f) { - if (cm.curOp) return f(); - startOperation(cm); - try { return f(); } - finally { endOperation(cm); } - } - // Wraps a function in an operation. Returns the wrapped function. - function operation(cm, f) { - return function() { - if (cm.curOp) return f.apply(cm, arguments); - startOperation(cm); - try { return f.apply(cm, arguments); } - finally { endOperation(cm); } - }; - } - // Used to add methods to editor and doc instances, wrapping them in - // operations. - function methodOp(f) { - return function() { - if (this.curOp) return f.apply(this, arguments); - startOperation(this); - try { return f.apply(this, arguments); } - finally { endOperation(this); } - }; - } - function docMethodOp(f) { - return function() { - var cm = this.cm; - if (!cm || cm.curOp) return f.apply(this, arguments); - startOperation(cm); - try { return f.apply(this, arguments); } - finally { endOperation(cm); } - }; - } - - // VIEW TRACKING - - // These objects are used to represent the visible (currently drawn) - // part of the document. A LineView may correspond to multiple - // logical lines, if those are connected by collapsed ranges. - function LineView(doc, line, lineN) { - // The starting line - this.line = line; - // Continuing lines, if any - this.rest = visualLineContinued(line); - // Number of logical lines in this visual line - this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1; - this.node = this.text = null; - this.hidden = lineIsHidden(doc, line); - } - - // Create a range of LineView objects for the given lines. - function buildViewArray(cm, from, to) { - var array = [], nextPos; - for (var pos = from; pos < to; pos = nextPos) { - var view = new LineView(cm.doc, getLine(cm.doc, pos), pos); - nextPos = pos + view.size; - array.push(view); - } - return array; - } - - // Updates the display.view data structure for a given change to the - // document. From and to are in pre-change coordinates. Lendiff is - // the amount of lines added or subtracted by the change. This is - // used for changes that span multiple lines, or change the way - // lines are divided into visual lines. regLineChange (below) - // registers single-line changes. - function regChange(cm, from, to, lendiff) { - if (from == null) from = cm.doc.first; - if (to == null) to = cm.doc.first + cm.doc.size; - if (!lendiff) lendiff = 0; - - var display = cm.display; - if (lendiff && to < display.viewTo && - (display.updateLineNumbers == null || display.updateLineNumbers > from)) - display.updateLineNumbers = from; - - cm.curOp.viewChanged = true; - - if (from >= display.viewTo) { // Change after - if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo) - resetView(cm); - } else if (to <= display.viewFrom) { // Change before - if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) { - resetView(cm); - } else { - display.viewFrom += lendiff; - display.viewTo += lendiff; - } - } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap - resetView(cm); - } else if (from <= display.viewFrom) { // Top overlap - var cut = viewCuttingPoint(cm, to, to + lendiff, 1); - if (cut) { - display.view = display.view.slice(cut.index); - display.viewFrom = cut.lineN; - display.viewTo += lendiff; - } else { - resetView(cm); - } - } else if (to >= display.viewTo) { // Bottom overlap - var cut = viewCuttingPoint(cm, from, from, -1); - if (cut) { - display.view = display.view.slice(0, cut.index); - display.viewTo = cut.lineN; - } else { - resetView(cm); - } - } else { // Gap in the middle - var cutTop = viewCuttingPoint(cm, from, from, -1); - var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1); - if (cutTop && cutBot) { - display.view = display.view.slice(0, cutTop.index) - .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN)) - .concat(display.view.slice(cutBot.index)); - display.viewTo += lendiff; - } else { - resetView(cm); - } - } - - var ext = display.externalMeasured; - if (ext) { - if (to < ext.lineN) - ext.lineN += lendiff; - else if (from < ext.lineN + ext.size) - display.externalMeasured = null; - } - } - - // Register a change to a single line. Type must be one of "text", - // "gutter", "class", "widget" - function regLineChange(cm, line, type) { - cm.curOp.viewChanged = true; - var display = cm.display, ext = cm.display.externalMeasured; - if (ext && line >= ext.lineN && line < ext.lineN + ext.size) - display.externalMeasured = null; - - if (line < display.viewFrom || line >= display.viewTo) return; - var lineView = display.view[findViewIndex(cm, line)]; - if (lineView.node == null) return; - var arr = lineView.changes || (lineView.changes = []); - if (indexOf(arr, type) == -1) arr.push(type); - } - - // Clear the view. - function resetView(cm) { - cm.display.viewFrom = cm.display.viewTo = cm.doc.first; - cm.display.view = []; - cm.display.viewOffset = 0; - } - - // Find the view element corresponding to a given line. Return null - // when the line isn't visible. - function findViewIndex(cm, n) { - if (n >= cm.display.viewTo) return null; - n -= cm.display.viewFrom; - if (n < 0) return null; - var view = cm.display.view; - for (var i = 0; i < view.length; i++) { - n -= view[i].size; - if (n < 0) return i; - } - } - - function viewCuttingPoint(cm, oldN, newN, dir) { - var index = findViewIndex(cm, oldN), diff, view = cm.display.view; - if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size) - return {index: index, lineN: newN}; - for (var i = 0, n = cm.display.viewFrom; i < index; i++) - n += view[i].size; - if (n != oldN) { - if (dir > 0) { - if (index == view.length - 1) return null; - diff = (n + view[index].size) - oldN; - index++; - } else { - diff = n - oldN; - } - oldN += diff; newN += diff; - } - while (visualLineNo(cm.doc, newN) != newN) { - if (index == (dir < 0 ? 0 : view.length - 1)) return null; - newN += dir * view[index - (dir < 0 ? 1 : 0)].size; - index += dir; - } - return {index: index, lineN: newN}; - } - - // Force the view to cover a given range, adding empty view element - // or clipping off existing ones as needed. - function adjustView(cm, from, to) { - var display = cm.display, view = display.view; - if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) { - display.view = buildViewArray(cm, from, to); - display.viewFrom = from; - } else { - if (display.viewFrom > from) - display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); - else if (display.viewFrom < from) - display.view = display.view.slice(findViewIndex(cm, from)); - display.viewFrom = from; - if (display.viewTo < to) - display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); - else if (display.viewTo > to) - display.view = display.view.slice(0, findViewIndex(cm, to)); - } - display.viewTo = to; - } - - // Count the number of lines in the view whose DOM representation is - // out of date (or nonexistent). - function countDirtyView(cm) { - var view = cm.display.view, dirty = 0; - for (var i = 0; i < view.length; i++) { - var lineView = view[i]; - if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty; - } - return dirty; - } - - // EVENT HANDLERS - - // Attach the necessary event handlers when initializing the editor - function registerEventHandlers(cm) { - var d = cm.display; - on(d.scroller, "mousedown", operation(cm, onMouseDown)); - // Older IE's will not fire a second mousedown for a double click - if (ie && ie_version < 11) - on(d.scroller, "dblclick", operation(cm, function(e) { - if (signalDOMEvent(cm, e)) return; - var pos = posFromMouse(cm, e); - if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return; - e_preventDefault(e); - var word = cm.findWordAt(pos); - extendSelection(cm.doc, word.anchor, word.head); - })); + function rm(node) { + var next = node.nextSibling + // Works around a throw-scroll bug in OS X Webkit + if (webkit && mac && cm.display.currentWheelTarget == node) + { node.style.display = "none" } else - on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); }); - // Some browsers fire contextmenu *after* opening the menu, at - // which point we can't mess with it anymore. Context menu is - // handled in onMouseDown for these browsers. - if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);}); + { node.parentNode.removeChild(node) } + return next + } - // Used to suppress mouse event handling when a touch happens - var touchFinished, prevTouch = {end: 0}; - function finishTouch() { - if (d.activeTouch) { - touchFinished = setTimeout(function() {d.activeTouch = null;}, 1000); - prevTouch = d.activeTouch; - prevTouch.end = +new Date; + var view = display.view, lineN = display.viewFrom + // Loop over the elements in the view, syncing cur (the DOM nodes + // in display.lineDiv) with the view as we go. + for (var i = 0; i < view.length; i++) { + var lineView = view[i] + if (lineView.hidden) { + } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet + var node = buildLineElement(cm, lineView, lineN, dims) + container.insertBefore(node, cur) + } else { // Already drawn + while (cur != lineView.node) { cur = rm(cur) } + var updateNumber = lineNumbers && updateNumbersFrom != null && + updateNumbersFrom <= lineN && lineView.lineNumber + if (lineView.changes) { + if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false } + updateLineForChanges(cm, lineView, lineN, dims) } - }; - function isMouseLikeTouchEvent(e) { - if (e.touches.length != 1) return false; - var touch = e.touches[0]; - return touch.radiusX <= 1 && touch.radiusY <= 1; + if (updateNumber) { + removeChildren(lineView.lineNumber) + lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN))) + } + cur = lineView.node.nextSibling } - function farAway(touch, other) { - if (other.left == null) return true; - var dx = other.left - touch.left, dy = other.top - touch.top; - return dx * dx + dy * dy > 20 * 20; + lineN += lineView.size + } + while (cur) { cur = rm(cur) } +} + +function updateGutterSpace(cm) { + var width = cm.display.gutters.offsetWidth + cm.display.sizer.style.marginLeft = width + "px" +} + +function setDocumentHeight(cm, measure) { + cm.display.sizer.style.minHeight = measure.docHeight + "px" + cm.display.heightForcer.style.top = measure.docHeight + "px" + cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px" +} + +// Rebuild the gutter elements, ensure the margin to the left of the +// code matches their width. +function updateGutters(cm) { + var gutters = cm.display.gutters, specs = cm.options.gutters + removeChildren(gutters) + var i = 0 + for (; i < specs.length; ++i) { + var gutterClass = specs[i] + var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass)) + if (gutterClass == "CodeMirror-linenumbers") { + cm.display.lineGutter = gElt + gElt.style.width = (cm.display.lineNumWidth || 1) + "px" } - on(d.scroller, "touchstart", function(e) { - if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e)) { - clearTimeout(touchFinished); - var now = +new Date; - d.activeTouch = {start: now, moved: false, - prev: now - prevTouch.end <= 300 ? prevTouch : null}; - if (e.touches.length == 1) { - d.activeTouch.left = e.touches[0].pageX; - d.activeTouch.top = e.touches[0].pageY; + } + gutters.style.display = i ? "" : "none" + updateGutterSpace(cm) +} + +// Make sure the gutters options contains the element +// "CodeMirror-linenumbers" when the lineNumbers option is true. +function setGuttersForLineNumbers(options) { + var found = indexOf(options.gutters, "CodeMirror-linenumbers") + if (found == -1 && options.lineNumbers) { + options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]) + } else if (found > -1 && !options.lineNumbers) { + options.gutters = options.gutters.slice(0) + options.gutters.splice(found, 1) + } +} + +// Selection objects are immutable. A new one is created every time +// the selection changes. A selection is one or more non-overlapping +// (and non-touching) ranges, sorted, and an integer that indicates +// which one is the primary selection (the one that's scrolled into +// view, that getCursor returns, etc). +function Selection(ranges, primIndex) { + this.ranges = ranges + this.primIndex = primIndex +} + +Selection.prototype = { + primary: function() { return this.ranges[this.primIndex] }, + equals: function(other) { + var this$1 = this; + + if (other == this) { return true } + if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false } + for (var i = 0; i < this.ranges.length; i++) { + var here = this$1.ranges[i], there = other.ranges[i] + if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) { return false } + } + return true + }, + deepCopy: function() { + var this$1 = this; + + var out = [] + for (var i = 0; i < this.ranges.length; i++) + { out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)) } + return new Selection(out, this.primIndex) + }, + somethingSelected: function() { + var this$1 = this; + + for (var i = 0; i < this.ranges.length; i++) + { if (!this$1.ranges[i].empty()) { return true } } + return false + }, + contains: function(pos, end) { + var this$1 = this; + + if (!end) { end = pos } + for (var i = 0; i < this.ranges.length; i++) { + var range = this$1.ranges[i] + if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) + { return i } + } + return -1 + } +} + +function Range(anchor, head) { + this.anchor = anchor; this.head = head +} + +Range.prototype = { + from: function() { return minPos(this.anchor, this.head) }, + to: function() { return maxPos(this.anchor, this.head) }, + empty: function() { + return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch + } +} + +// Take an unsorted, potentially overlapping set of ranges, and +// build a selection out of it. 'Consumes' ranges array (modifying +// it). +function normalizeSelection(ranges, primIndex) { + var prim = ranges[primIndex] + ranges.sort(function (a, b) { return cmp(a.from(), b.from()); }) + primIndex = indexOf(ranges, prim) + for (var i = 1; i < ranges.length; i++) { + var cur = ranges[i], prev = ranges[i - 1] + if (cmp(prev.to(), cur.from()) >= 0) { + var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to()) + var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head + if (i <= primIndex) { --primIndex } + ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to)) + } + } + return new Selection(ranges, primIndex) +} + +function simpleSelection(anchor, head) { + return new Selection([new Range(anchor, head || anchor)], 0) +} + +// Compute the position of the end of a change (its 'to' property +// refers to the pre-change end). +function changeEnd(change) { + if (!change.text) { return change.to } + return Pos(change.from.line + change.text.length - 1, + lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)) +} + +// Adjust a position to refer to the post-change position of the +// same text, or the end of the change if the change covers it. +function adjustForChange(pos, change) { + if (cmp(pos, change.from) < 0) { return pos } + if (cmp(pos, change.to) <= 0) { return changeEnd(change) } + + var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch + if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch } + return Pos(line, ch) +} + +function computeSelAfterChange(doc, change) { + var out = [] + for (var i = 0; i < doc.sel.ranges.length; i++) { + var range = doc.sel.ranges[i] + out.push(new Range(adjustForChange(range.anchor, change), + adjustForChange(range.head, change))) + } + return normalizeSelection(out, doc.sel.primIndex) +} + +function offsetPos(pos, old, nw) { + if (pos.line == old.line) + { return Pos(nw.line, pos.ch - old.ch + nw.ch) } + else + { return Pos(nw.line + (pos.line - old.line), pos.ch) } +} + +// Used by replaceSelections to allow moving the selection to the +// start or around the replaced test. Hint may be "start" or "around". +function computeReplacedSel(doc, changes, hint) { + var out = [] + var oldPrev = Pos(doc.first, 0), newPrev = oldPrev + for (var i = 0; i < changes.length; i++) { + var change = changes[i] + var from = offsetPos(change.from, oldPrev, newPrev) + var to = offsetPos(changeEnd(change), oldPrev, newPrev) + oldPrev = change.to + newPrev = to + if (hint == "around") { + var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0 + out[i] = new Range(inv ? to : from, inv ? from : to) + } else { + out[i] = new Range(from, from) + } + } + return new Selection(out, doc.sel.primIndex) +} + +// Used to get the editor into a consistent state again when options change. + +function loadMode(cm) { + cm.doc.mode = getMode(cm.options, cm.doc.modeOption) + resetModeState(cm) +} + +function resetModeState(cm) { + cm.doc.iter(function (line) { + if (line.stateAfter) { line.stateAfter = null } + if (line.styles) { line.styles = null } + }) + cm.doc.frontier = cm.doc.first + startWorker(cm, 100) + cm.state.modeGen++ + if (cm.curOp) { regChange(cm) } +} + +// DOCUMENT DATA STRUCTURE + +// By default, updates that start and end at the beginning of a line +// are treated specially, in order to make the association of line +// widgets and marker elements with the text behave more intuitive. +function isWholeLineUpdate(doc, change) { + return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" && + (!doc.cm || doc.cm.options.wholeLineUpdateBefore) +} + +// Perform a change on the document data structure. +function updateDoc(doc, change, markedSpans, estimateHeight) { + function spansFor(n) {return markedSpans ? markedSpans[n] : null} + function update(line, text, spans) { + updateLine(line, text, spans, estimateHeight) + signalLater(line, "change", line, change) + } + function linesFor(start, end) { + var result = [] + for (var i = start; i < end; ++i) + { result.push(new Line(text[i], spansFor(i), estimateHeight)) } + return result + } + + var from = change.from, to = change.to, text = change.text + var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line) + var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line + + // Adjust the line structure + if (change.full) { + doc.insert(0, linesFor(0, text.length)) + doc.remove(text.length, doc.size - text.length) + } else if (isWholeLineUpdate(doc, change)) { + // This is a whole-line replace. Treated specially to make + // sure line objects move the way they are supposed to. + var added = linesFor(0, text.length - 1) + update(lastLine, lastLine.text, lastSpans) + if (nlines) { doc.remove(from.line, nlines) } + if (added.length) { doc.insert(from.line, added) } + } else if (firstLine == lastLine) { + if (text.length == 1) { + update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans) + } else { + var added$1 = linesFor(1, text.length - 1) + added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight)) + update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)) + doc.insert(from.line + 1, added$1) + } + } else if (text.length == 1) { + update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)) + doc.remove(from.line + 1, nlines) + } else { + update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)) + update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans) + var added$2 = linesFor(1, text.length - 1) + if (nlines > 1) { doc.remove(from.line + 1, nlines - 1) } + doc.insert(from.line + 1, added$2) + } + + signalLater(doc, "change", doc, change) +} + +// Call f for all linked documents. +function linkedDocs(doc, f, sharedHistOnly) { + function propagate(doc, skip, sharedHist) { + if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) { + var rel = doc.linked[i] + if (rel.doc == skip) { continue } + var shared = sharedHist && rel.sharedHist + if (sharedHistOnly && !shared) { continue } + f(rel.doc, shared) + propagate(rel.doc, doc, shared) + } } + } + propagate(doc, null, true) +} + +// Attach a document to an editor. +function attachDoc(cm, doc) { + if (doc.cm) { throw new Error("This document is already in use.") } + cm.doc = doc + doc.cm = cm + estimateLineHeights(cm) + loadMode(cm) + if (!cm.options.lineWrapping) { findMaxLine(cm) } + cm.options.mode = doc.modeOption + regChange(cm) +} + +function History(startGen) { + // Arrays of change events and selections. Doing something adds an + // event to done and clears undo. Undoing moves events from done + // to undone, redoing moves them in the other direction. + this.done = []; this.undone = [] + this.undoDepth = Infinity + // Used to track when changes can be merged into a single undo + // event + this.lastModTime = this.lastSelTime = 0 + this.lastOp = this.lastSelOp = null + this.lastOrigin = this.lastSelOrigin = null + // Used by the isClean() method + this.generation = this.maxGeneration = startGen || 1 +} + +// Create a history change event from an updateDoc-style change +// object. +function historyChangeFromChange(doc, change) { + var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)} + attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1) + linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true) + return histChange +} + +// Pop all selection events off the end of a history array. Stop at +// a change event. +function clearSelectionEvents(array) { + while (array.length) { + var last = lst(array) + if (last.ranges) { array.pop() } + else { break } + } +} + +// Find the top change event in the history. Pop off selection +// events that are in the way. +function lastChangeEvent(hist, force) { + if (force) { + clearSelectionEvents(hist.done) + return lst(hist.done) + } else if (hist.done.length && !lst(hist.done).ranges) { + return lst(hist.done) + } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) { + hist.done.pop() + return lst(hist.done) + } +} + +// Register a change in the history. Merges changes that are within +// a single operation, or are close together with an origin that +// allows merging (starting with "+") into a single event. +function addChangeToHistory(doc, change, selAfter, opId) { + var hist = doc.history + hist.undone.length = 0 + var time = +new Date, cur + var last + + if ((hist.lastOp == opId || + hist.lastOrigin == change.origin && change.origin && + ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) || + change.origin.charAt(0) == "*")) && + (cur = lastChangeEvent(hist, hist.lastOp == opId))) { + // Merge this change into the last event + last = lst(cur.changes) + if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) { + // Optimized case for simple insertion -- don't want to add + // new changesets for every character typed + last.to = changeEnd(change) + } else { + // Add new sub-event + cur.changes.push(historyChangeFromChange(doc, change)) + } + } else { + // Can not be merged, start a new event. + var before = lst(hist.done) + if (!before || !before.ranges) + { pushSelectionToHistory(doc.sel, hist.done) } + cur = {changes: [historyChangeFromChange(doc, change)], + generation: hist.generation} + hist.done.push(cur) + while (hist.done.length > hist.undoDepth) { + hist.done.shift() + if (!hist.done[0].ranges) { hist.done.shift() } + } + } + hist.done.push(selAfter) + hist.generation = ++hist.maxGeneration + hist.lastModTime = hist.lastSelTime = time + hist.lastOp = hist.lastSelOp = opId + hist.lastOrigin = hist.lastSelOrigin = change.origin + + if (!last) { signal(doc, "historyAdded") } +} + +function selectionEventCanBeMerged(doc, origin, prev, sel) { + var ch = origin.charAt(0) + return ch == "*" || + ch == "+" && + prev.ranges.length == sel.ranges.length && + prev.somethingSelected() == sel.somethingSelected() && + new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500) +} + +// Called whenever the selection changes, sets the new selection as +// the pending selection in the history, and pushes the old pending +// selection into the 'done' array when it was significantly +// different (in number of selected ranges, emptiness, or time). +function addSelectionToHistory(doc, sel, opId, options) { + var hist = doc.history, origin = options && options.origin + + // A new event is started when the previous origin does not match + // the current, or the origins don't allow matching. Origins + // starting with * are always merged, those starting with + are + // merged when similar and close together in time. + if (opId == hist.lastSelOp || + (origin && hist.lastSelOrigin == origin && + (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin || + selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))) + { hist.done[hist.done.length - 1] = sel } + else + { pushSelectionToHistory(sel, hist.done) } + + hist.lastSelTime = +new Date + hist.lastSelOrigin = origin + hist.lastSelOp = opId + if (options && options.clearRedo !== false) + { clearSelectionEvents(hist.undone) } +} + +function pushSelectionToHistory(sel, dest) { + var top = lst(dest) + if (!(top && top.ranges && top.equals(sel))) + { dest.push(sel) } +} + +// Used to store marked span information in the history. +function attachLocalSpans(doc, change, from, to) { + var existing = change["spans_" + doc.id], n = 0 + doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) { + if (line.markedSpans) + { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans } + ++n + }) +} + +// When un/re-doing restores text containing marked spans, those +// that have been explicitly cleared should not be restored. +function removeClearedSpans(spans) { + if (!spans) { return null } + var out + for (var i = 0; i < spans.length; ++i) { + if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i) } } + else if (out) { out.push(spans[i]) } + } + return !out ? spans : out.length ? out : null +} + +// Retrieve and filter the old marked spans stored in a change event. +function getOldSpans(doc, change) { + var found = change["spans_" + doc.id] + if (!found) { return null } + var nw = [] + for (var i = 0; i < change.text.length; ++i) + { nw.push(removeClearedSpans(found[i])) } + return nw +} + +// Used for un/re-doing changes from the history. Combines the +// result of computing the existing spans with the set of spans that +// existed in the history (so that deleting around a span and then +// undoing brings back the span). +function mergeOldSpans(doc, change) { + var old = getOldSpans(doc, change) + var stretched = stretchSpansOverChange(doc, change) + if (!old) { return stretched } + if (!stretched) { return old } + + for (var i = 0; i < old.length; ++i) { + var oldCur = old[i], stretchCur = stretched[i] + if (oldCur && stretchCur) { + spans: for (var j = 0; j < stretchCur.length; ++j) { + var span = stretchCur[j] + for (var k = 0; k < oldCur.length; ++k) + { if (oldCur[k].marker == span.marker) { continue spans } } + oldCur.push(span) + } + } else if (stretchCur) { + old[i] = stretchCur + } + } + return old +} + +// Used both to provide a JSON-safe object in .getHistory, and, when +// detaching a document, to split the history in two +function copyHistoryArray(events, newGroup, instantiateSel) { + var copy = [] + for (var i = 0; i < events.length; ++i) { + var event = events[i] + if (event.ranges) { + copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event) + continue + } + var changes = event.changes, newChanges = [] + copy.push({changes: newChanges}) + for (var j = 0; j < changes.length; ++j) { + var change = changes[j], m = (void 0) + newChanges.push({from: change.from, to: change.to, text: change.text}) + if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) { + if (indexOf(newGroup, Number(m[1])) > -1) { + lst(newChanges)[prop] = change[prop] + delete change[prop] + } + } } } + } + } + return copy +} + +// The 'scroll' parameter given to many of these indicated whether +// the new cursor position should be scrolled into view after +// modifying the selection. + +// If shift is held or the extend flag is set, extends a range to +// include a given position (and optionally a second position). +// Otherwise, simply returns the range between the given positions. +// Used for cursor motion and such. +function extendRange(doc, range, head, other) { + if (doc.cm && doc.cm.display.shift || doc.extend) { + var anchor = range.anchor + if (other) { + var posBefore = cmp(head, anchor) < 0 + if (posBefore != (cmp(other, anchor) < 0)) { + anchor = head + head = other + } else if (posBefore != (cmp(head, other) < 0)) { + head = other + } + } + return new Range(anchor, head) + } else { + return new Range(other || head, head) + } +} + +// Extend the primary selection range, discard the rest. +function extendSelection(doc, head, other, options) { + setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options) +} + +// Extend all selections (pos is an array of selections with length +// equal the number of selections) +function extendSelections(doc, heads, options) { + var out = [] + for (var i = 0; i < doc.sel.ranges.length; i++) + { out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null) } + var newSel = normalizeSelection(out, doc.sel.primIndex) + setSelection(doc, newSel, options) +} + +// Updates a single range in the selection. +function replaceOneSelection(doc, i, range, options) { + var ranges = doc.sel.ranges.slice(0) + ranges[i] = range + setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options) +} + +// Reset the selection to a single range. +function setSimpleSelection(doc, anchor, head, options) { + setSelection(doc, simpleSelection(anchor, head), options) +} + +// Give beforeSelectionChange handlers a change to influence a +// selection update. +function filterSelectionChange(doc, sel, options) { + var obj = { + ranges: sel.ranges, + update: function(ranges) { + var this$1 = this; + + this.ranges = [] + for (var i = 0; i < ranges.length; i++) + { this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), + clipPos(doc, ranges[i].head)) } + }, + origin: options && options.origin + } + signal(doc, "beforeSelectionChange", doc, obj) + if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj) } + if (obj.ranges != sel.ranges) { return normalizeSelection(obj.ranges, obj.ranges.length - 1) } + else { return sel } +} + +function setSelectionReplaceHistory(doc, sel, options) { + var done = doc.history.done, last = lst(done) + if (last && last.ranges) { + done[done.length - 1] = sel + setSelectionNoUndo(doc, sel, options) + } else { + setSelection(doc, sel, options) + } +} + +// Set a new selection. +function setSelection(doc, sel, options) { + setSelectionNoUndo(doc, sel, options) + addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options) +} + +function setSelectionNoUndo(doc, sel, options) { + if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) + { sel = filterSelectionChange(doc, sel, options) } + + var bias = options && options.bias || + (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1) + setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true)) + + if (!(options && options.scroll === false) && doc.cm) + { ensureCursorVisible(doc.cm) } +} + +function setSelectionInner(doc, sel) { + if (sel.equals(doc.sel)) { return } + + doc.sel = sel + + if (doc.cm) { + doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true + signalCursorActivity(doc.cm) + } + signalLater(doc, "cursorActivity", doc) +} + +// Verify that the selection does not partially select any atomic +// marked ranges. +function reCheckSelection(doc) { + setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll) +} + +// Return a selection that does not partially select any atomic +// ranges. +function skipAtomicInSelection(doc, sel, bias, mayClear) { + var out + for (var i = 0; i < sel.ranges.length; i++) { + var range = sel.ranges[i] + var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i] + var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear) + var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear) + if (out || newAnchor != range.anchor || newHead != range.head) { + if (!out) { out = sel.ranges.slice(0, i) } + out[i] = new Range(newAnchor, newHead) + } + } + return out ? normalizeSelection(out, sel.primIndex) : sel +} + +function skipAtomicInner(doc, pos, oldPos, dir, mayClear) { + var line = getLine(doc, pos.line) + if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { + var sp = line.markedSpans[i], m = sp.marker + if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) && + (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) { + if (mayClear) { + signal(m, "beforeCursorEnter") + if (m.explicitlyCleared) { + if (!line.markedSpans) { break } + else {--i; continue} } } - }); - on(d.scroller, "touchmove", function() { - if (d.activeTouch) d.activeTouch.moved = true; - }); - on(d.scroller, "touchend", function(e) { - var touch = d.activeTouch; - if (touch && !eventInWidget(d, e) && touch.left != null && - !touch.moved && new Date - touch.start < 300) { - var pos = cm.coordsChar(d.activeTouch, "page"), range; - if (!touch.prev || farAway(touch, touch.prev)) // Single tap - range = new Range(pos, pos); - else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap - range = cm.findWordAt(pos); - else // Triple tap - range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); - cm.setSelection(range.anchor, range.head); - cm.focus(); - e_preventDefault(e); + if (!m.atomic) { continue } + + if (oldPos) { + var near = m.find(dir < 0 ? 1 : -1), diff = (void 0) + if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft) + { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null) } + if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0)) + { return skipAtomicInner(doc, near, pos, dir, mayClear) } } - finishTouch(); - }); - on(d.scroller, "touchcancel", finishTouch); - // Sync scrolling between fake scrollbars and real scrollable - // area, ensure viewport is updated when scrolling. - on(d.scroller, "scroll", function() { - if (d.scroller.clientHeight) { - setScrollTop(cm, d.scroller.scrollTop); - setScrollLeft(cm, d.scroller.scrollLeft, true); - signal(cm, "scroll", cm); + var far = m.find(dir < 0 ? -1 : 1) + if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight) + { far = movePos(doc, far, dir, far.line == pos.line ? line : null) } + return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null + } + } } + return pos +} + +// Ensure a given position is not inside an atomic range. +function skipAtomic(doc, pos, oldPos, bias, mayClear) { + var dir = bias || 1 + var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) || + (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) || + skipAtomicInner(doc, pos, oldPos, -dir, mayClear) || + (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true)) + if (!found) { + doc.cantEdit = true + return Pos(doc.first, 0) + } + return found +} + +function movePos(doc, pos, dir, line) { + if (dir < 0 && pos.ch == 0) { + if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) } + else { return null } + } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) { + if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) } + else { return null } + } else { + return new Pos(pos.line, pos.ch + dir) + } +} + +function selectAll(cm) { + cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll) +} + +// UPDATING + +// Allow "beforeChange" event handlers to influence a change +function filterChange(doc, change, update) { + var obj = { + canceled: false, + from: change.from, + to: change.to, + text: change.text, + origin: change.origin, + cancel: function () { return obj.canceled = true; } + } + if (update) { obj.update = function (from, to, text, origin) { + if (from) { obj.from = clipPos(doc, from) } + if (to) { obj.to = clipPos(doc, to) } + if (text) { obj.text = text } + if (origin !== undefined) { obj.origin = origin } + } } + signal(doc, "beforeChange", doc, obj) + if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj) } + + if (obj.canceled) { return null } + return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin} +} + +// Apply a change to a document, and add it to the document's +// history, and propagating it to all linked documents. +function makeChange(doc, change, ignoreReadOnly) { + if (doc.cm) { + if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) } + if (doc.cm.state.suppressEdits) { return } + } + + if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { + change = filterChange(doc, change, true) + if (!change) { return } + } + + // Possibly split or suppress the update based on the presence + // of read-only spans in its range. + var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to) + if (split) { + for (var i = split.length - 1; i >= 0; --i) + { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text}) } + } else { + makeChangeInner(doc, change) + } +} + +function makeChangeInner(doc, change) { + if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return } + var selAfter = computeSelAfterChange(doc, change) + addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN) + + makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)) + var rebased = [] + + linkedDocs(doc, function (doc, sharedHist) { + if (!sharedHist && indexOf(rebased, doc.history) == -1) { + rebaseHist(doc.history, change) + rebased.push(doc.history) + } + makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)) + }) +} + +// Revert a change stored in a document's history. +function makeChangeFromHistory(doc, type, allowSelectionOnly) { + if (doc.cm && doc.cm.state.suppressEdits && !allowSelectionOnly) { return } + + var hist = doc.history, event, selAfter = doc.sel + var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done + + // Verify that there is a useable event (so that ctrl-z won't + // needlessly clear selection events) + var i = 0 + for (; i < source.length; i++) { + event = source[i] + if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges) + { break } + } + if (i == source.length) { return } + hist.lastOrigin = hist.lastSelOrigin = null + + for (;;) { + event = source.pop() + if (event.ranges) { + pushSelectionToHistory(event, dest) + if (allowSelectionOnly && !event.equals(doc.sel)) { + setSelection(doc, event, {clearRedo: false}) + return } - }); - - // Listen to wheel events in order to try and update the viewport on time. - on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);}); - on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);}); - - // Prevent wrapper from ever scrolling - on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); - - d.dragFunctions = { - enter: function(e) {if (!signalDOMEvent(cm, e)) e_stop(e);}, - over: function(e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }}, - start: function(e){onDragStart(cm, e);}, - drop: operation(cm, onDrop), - leave: function(e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }} - }; - - var inp = d.input.getField(); - on(inp, "keyup", function(e) { onKeyUp.call(cm, e); }); - on(inp, "keydown", operation(cm, onKeyDown)); - on(inp, "keypress", operation(cm, onKeyPress)); - on(inp, "focus", bind(onFocus, cm)); - on(inp, "blur", bind(onBlur, cm)); - } - - function dragDropChanged(cm, value, old) { - var wasOn = old && old != CodeMirror.Init; - if (!value != !wasOn) { - var funcs = cm.display.dragFunctions; - var toggle = value ? on : off; - toggle(cm.display.scroller, "dragstart", funcs.start); - toggle(cm.display.scroller, "dragenter", funcs.enter); - toggle(cm.display.scroller, "dragover", funcs.over); - toggle(cm.display.scroller, "dragleave", funcs.leave); - toggle(cm.display.scroller, "drop", funcs.drop); + selAfter = event } + else { break } } - // Called when the window resizes - function onResize(cm) { - var d = cm.display; - if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth) - return; - // Might be a text scaling operation, clear size caches. - d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; - d.scrollbarsClipped = false; - cm.setSize(); - } + // Build up a reverse change object to add to the opposite history + // stack (redo when undoing, and vice versa). + var antiChanges = [] + pushSelectionToHistory(selAfter, dest) + dest.push({changes: antiChanges, generation: hist.generation}) + hist.generation = event.generation || ++hist.maxGeneration - // MOUSE EVENTS + var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange") - // Return true when the given mouse event happened in a widget - function eventInWidget(display, e) { - for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { - if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") || - (n.parentNode == display.sizer && n != display.mover)) - return true; - } - } - - // Given a mouse event, find the corresponding position. If liberal - // is false, it checks whether a gutter or scrollbar was clicked, - // and returns null if it was. forRect is used by rectangular - // selections, and tries to estimate a character position even for - // coordinates beyond the right of the text. - function posFromMouse(cm, e, liberal, forRect) { - var display = cm.display; - if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") return null; - - var x, y, space = display.lineSpace.getBoundingClientRect(); - // Fails unpredictably on IE[67] when mouse is dragged around quickly. - try { x = e.clientX - space.left; y = e.clientY - space.top; } - catch (e) { return null; } - var coords = coordsChar(cm, x, y), line; - if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) { - var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length; - coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff)); - } - return coords; - } - - // A mouse down can be a single click, double click, triple click, - // start of selection drag, start of text drag, new cursor - // (ctrl-click), rectangle drag (alt-drag), or xwin - // middle-click-paste. Or it might be a click on something we should - // not interfere with, such as a scrollbar or widget. - function onMouseDown(e) { - var cm = this, display = cm.display; - if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) return; - display.shift = e.shiftKey; - - if (eventInWidget(display, e)) { - if (!webkit) { - // Briefly turn off draggability, to allow widgets to do - // normal dragging things. - display.scroller.draggable = false; - setTimeout(function(){display.scroller.draggable = true;}, 100); - } - return; - } - if (clickInGutter(cm, e)) return; - var start = posFromMouse(cm, e); - window.focus(); - - switch (e_button(e)) { - case 1: - // #3261: make sure, that we're not starting a second selection - if (cm.state.selectingText) - cm.state.selectingText(e); - else if (start) - leftButtonDown(cm, e, start); - else if (e_target(e) == display.scroller) - e_preventDefault(e); - break; - case 2: - if (webkit) cm.state.lastMiddleDown = +new Date; - if (start) extendSelection(cm.doc, start); - setTimeout(function() {display.input.focus();}, 20); - e_preventDefault(e); - break; - case 3: - if (captureRightClick) onContextMenu(cm, e); - else delayBlurEvent(cm); - break; - } - } - - var lastClick, lastDoubleClick; - function leftButtonDown(cm, e, start) { - if (ie) setTimeout(bind(ensureFocus, cm), 0); - else cm.curOp.focus = activeElt(); - - var now = +new Date, type; - if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) { - type = "triple"; - } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) { - type = "double"; - lastDoubleClick = {time: now, pos: start}; - } else { - type = "single"; - lastClick = {time: now, pos: start}; + var loop = function ( i ) { + var change = event.changes[i] + change.origin = type + if (filter && !filterChange(doc, change, false)) { + source.length = 0 + return {} } - var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained; - if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() && - type == "single" && (contained = sel.contains(start)) > -1 && - (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) && - (cmp(contained.to(), start) > 0 || start.xRel < 0)) - leftButtonStartDrag(cm, e, start, modifier); - else - leftButtonSelect(cm, e, start, type, modifier); - } + antiChanges.push(historyChangeFromChange(doc, change)) - // Start a text drag. When it ends, see if any dragging actually - // happen, and treat as a click if it didn't. - function leftButtonStartDrag(cm, e, start, modifier) { - var display = cm.display, startTime = +new Date; - var dragEnd = operation(cm, function(e2) { - if (webkit) display.scroller.draggable = false; - cm.state.draggingText = false; - off(document, "mouseup", dragEnd); - off(display.scroller, "drop", dragEnd); - if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { - e_preventDefault(e2); - if (!modifier && +new Date - 200 < startTime) - extendSelection(cm.doc, start); - // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081) - if (webkit || ie && ie_version == 9) - setTimeout(function() {document.body.focus(); display.input.focus();}, 20); - else - display.input.focus(); - } - }); - // Let the drag handler handle this. - if (webkit) display.scroller.draggable = true; - cm.state.draggingText = dragEnd; - dragEnd.copy = mac ? e.altKey : e.ctrlKey - // IE's approach to draggable - if (display.scroller.dragDrop) display.scroller.dragDrop(); - on(document, "mouseup", dragEnd); - on(display.scroller, "drop", dragEnd); - } + var after = i ? computeSelAfterChange(doc, change) : lst(source) + makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)) + if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}) } + var rebased = [] - // Normal selection, as opposed to text dragging. - function leftButtonSelect(cm, e, start, type, addNew) { - var display = cm.display, doc = cm.doc; - e_preventDefault(e); - - var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges; - if (addNew && !e.shiftKey) { - ourIndex = doc.sel.contains(start); - if (ourIndex > -1) - ourRange = ranges[ourIndex]; - else - ourRange = new Range(start, start); - } else { - ourRange = doc.sel.primary(); - ourIndex = doc.sel.primIndex; - } - - if (chromeOS ? e.shiftKey && e.metaKey : e.altKey) { - type = "rect"; - if (!addNew) ourRange = new Range(start, start); - start = posFromMouse(cm, e, true, true); - ourIndex = -1; - } else if (type == "double") { - var word = cm.findWordAt(start); - if (cm.display.shift || doc.extend) - ourRange = extendRange(doc, ourRange, word.anchor, word.head); - else - ourRange = word; - } else if (type == "triple") { - var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0))); - if (cm.display.shift || doc.extend) - ourRange = extendRange(doc, ourRange, line.anchor, line.head); - else - ourRange = line; - } else { - ourRange = extendRange(doc, ourRange, start); - } - - if (!addNew) { - ourIndex = 0; - setSelection(doc, new Selection([ourRange], 0), sel_mouse); - startSel = doc.sel; - } else if (ourIndex == -1) { - ourIndex = ranges.length; - setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex), - {scroll: false, origin: "*mouse"}); - } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) { - setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0), - {scroll: false, origin: "*mouse"}); - startSel = doc.sel; - } else { - replaceOneSelection(doc, ourIndex, ourRange, sel_mouse); - } - - var lastPos = start; - function extendTo(pos) { - if (cmp(lastPos, pos) == 0) return; - lastPos = pos; - - if (type == "rect") { - var ranges = [], tabSize = cm.options.tabSize; - var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize); - var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize); - var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol); - for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); - line <= end; line++) { - var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize); - if (left == right) - ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); - else if (text.length > leftPos) - ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); - } - if (!ranges.length) ranges.push(new Range(start, start)); - setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), - {origin: "*mouse", scroll: false}); - cm.scrollIntoView(pos); - } else { - var oldRange = ourRange; - var anchor = oldRange.anchor, head = pos; - if (type != "single") { - if (type == "double") - var range = cm.findWordAt(pos); - else - var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0))); - if (cmp(range.anchor, anchor) > 0) { - head = range.head; - anchor = minPos(oldRange.from(), range.anchor); - } else { - head = range.anchor; - anchor = maxPos(oldRange.to(), range.head); - } - } - var ranges = startSel.ranges.slice(0); - ranges[ourIndex] = new Range(clipPos(doc, anchor), head); - setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse); - } - } - - var editorSize = display.wrapper.getBoundingClientRect(); - // Used to ensure timeout re-tries don't fire when another extend - // happened in the meantime (clearTimeout isn't reliable -- at - // least on Chrome, the timeouts still happen even when cleared, - // if the clear happens after their scheduled firing time). - var counter = 0; - - function extend(e) { - var curCount = ++counter; - var cur = posFromMouse(cm, e, true, type == "rect"); - if (!cur) return; - if (cmp(cur, lastPos) != 0) { - cm.curOp.focus = activeElt(); - extendTo(cur); - var visible = visibleLines(display, doc); - if (cur.line >= visible.to || cur.line < visible.from) - setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150); - } else { - var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0; - if (outside) setTimeout(operation(cm, function() { - if (counter != curCount) return; - display.scroller.scrollTop += outside; - extend(e); - }), 50); - } - } - - function done(e) { - cm.state.selectingText = false; - counter = Infinity; - e_preventDefault(e); - display.input.focus(); - off(document, "mousemove", move); - off(document, "mouseup", up); - doc.history.lastSelOrigin = null; - } - - var move = operation(cm, function(e) { - if (!e_button(e)) done(e); - else extend(e); - }); - var up = operation(cm, done); - cm.state.selectingText = up; - on(document, "mousemove", move); - on(document, "mouseup", up); - } - - // Determines whether an event happened in the gutter, and fires the - // handlers for the corresponding event. - function gutterEvent(cm, e, type, prevent) { - try { var mX = e.clientX, mY = e.clientY; } - catch(e) { return false; } - if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false; - if (prevent) e_preventDefault(e); - - var display = cm.display; - var lineBox = display.lineDiv.getBoundingClientRect(); - - if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e); - mY -= lineBox.top - display.viewOffset; - - for (var i = 0; i < cm.options.gutters.length; ++i) { - var g = display.gutters.childNodes[i]; - if (g && g.getBoundingClientRect().right >= mX) { - var line = lineAtHeight(cm.doc, mY); - var gutter = cm.options.gutters[i]; - signal(cm, type, cm, line, gutter, e); - return e_defaultPrevented(e); - } - } - } - - function clickInGutter(cm, e) { - return gutterEvent(cm, e, "gutterClick", true); - } - - // Kludge to work around strange IE behavior where it'll sometimes - // re-fire a series of drag-related events right after the drop (#1551) - var lastDrop = 0; - - function onDrop(e) { - var cm = this; - clearDragCursor(cm); - if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) - return; - e_preventDefault(e); - if (ie) lastDrop = +new Date; - var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; - if (!pos || cm.isReadOnly()) return; - // Might be a file drop, in which case we simply extract the text - // and insert it. - if (files && files.length && window.FileReader && window.File) { - var n = files.length, text = Array(n), read = 0; - var loadFile = function(file, i) { - if (cm.options.allowDropFileTypes && - indexOf(cm.options.allowDropFileTypes, file.type) == -1) - return; - - var reader = new FileReader; - reader.onload = operation(cm, function() { - var content = reader.result; - if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) content = ""; - text[i] = content; - if (++read == n) { - pos = clipPos(cm.doc, pos); - var change = {from: pos, to: pos, - text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())), - origin: "paste"}; - makeChange(cm.doc, change); - setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change))); - } - }); - reader.readAsText(file); - }; - for (var i = 0; i < n; ++i) loadFile(files[i], i); - } else { // Normal drop - // Don't do a replace if the drop happened inside of the selected text. - if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) { - cm.state.draggingText(e); - // Ensure the editor is re-focused - setTimeout(function() {cm.display.input.focus();}, 20); - return; - } - try { - var text = e.dataTransfer.getData("Text"); - if (text) { - if (cm.state.draggingText && !cm.state.draggingText.copy) - var selected = cm.listSelections(); - setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)); - if (selected) for (var i = 0; i < selected.length; ++i) - replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag"); - cm.replaceSelection(text, "around", "paste"); - cm.display.input.focus(); - } - } - catch(e){} - } - } - - function onDragStart(cm, e) { - if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; } - if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return; - - e.dataTransfer.setData("Text", cm.getSelection()); - e.dataTransfer.effectAllowed = "copyMove" - - // Use dummy image instead of default browsers image. - // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. - if (e.dataTransfer.setDragImage && !safari) { - var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); - img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="; - if (presto) { - img.width = img.height = 1; - cm.display.wrapper.appendChild(img); - // Force a relayout, or Opera won't use our image for some obscure reason - img._top = img.offsetTop; - } - e.dataTransfer.setDragImage(img, 0, 0); - if (presto) img.parentNode.removeChild(img); - } - } - - function onDragOver(cm, e) { - var pos = posFromMouse(cm, e); - if (!pos) return; - var frag = document.createDocumentFragment(); - drawSelectionCursor(cm, pos, frag); - if (!cm.display.dragCursor) { - cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors"); - cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv); - } - removeChildrenAndAdd(cm.display.dragCursor, frag); - } - - function clearDragCursor(cm) { - if (cm.display.dragCursor) { - cm.display.lineSpace.removeChild(cm.display.dragCursor); - cm.display.dragCursor = null; - } - } - - // SCROLL EVENTS - - // Sync the scrollable area and scrollbars, ensure the viewport - // covers the visible area. - function setScrollTop(cm, val) { - if (Math.abs(cm.doc.scrollTop - val) < 2) return; - cm.doc.scrollTop = val; - if (!gecko) updateDisplaySimple(cm, {top: val}); - if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val; - cm.display.scrollbars.setScrollTop(val); - if (gecko) updateDisplaySimple(cm); - startWorker(cm, 100); - } - // Sync scroller and scrollbar, ensure the gutter elements are - // aligned. - function setScrollLeft(cm, val, isScroller) { - if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return; - val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth); - cm.doc.scrollLeft = val; - alignHorizontally(cm); - if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val; - cm.display.scrollbars.setScrollLeft(val); - } - - // Since the delta values reported on mouse wheel events are - // unstandardized between browsers and even browser versions, and - // generally horribly unpredictable, this code starts by measuring - // the scroll effect that the first few mouse wheel events have, - // and, from that, detects the way it can convert deltas to pixel - // offsets afterwards. - // - // The reason we want to know the amount a wheel event will scroll - // is that it gives us a chance to update the display before the - // actual scrolling happens, reducing flickering. - - var wheelSamples = 0, wheelPixelsPerUnit = null; - // Fill in a browser-detected starting value on browsers where we - // know one. These don't have to be accurate -- the result of them - // being wrong would just be a slight flicker on the first wheel - // scroll (if it is large enough). - if (ie) wheelPixelsPerUnit = -.53; - else if (gecko) wheelPixelsPerUnit = 15; - else if (chrome) wheelPixelsPerUnit = -.7; - else if (safari) wheelPixelsPerUnit = -1/3; - - var wheelEventDelta = function(e) { - var dx = e.wheelDeltaX, dy = e.wheelDeltaY; - if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail; - if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail; - else if (dy == null) dy = e.wheelDelta; - return {x: dx, y: dy}; - }; - CodeMirror.wheelEventPixels = function(e) { - var delta = wheelEventDelta(e); - delta.x *= wheelPixelsPerUnit; - delta.y *= wheelPixelsPerUnit; - return delta; - }; - - function onScrollWheel(cm, e) { - var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y; - - var display = cm.display, scroll = display.scroller; - // Quit if there's nothing to scroll here - var canScrollX = scroll.scrollWidth > scroll.clientWidth; - var canScrollY = scroll.scrollHeight > scroll.clientHeight; - if (!(dx && canScrollX || dy && canScrollY)) return; - - // Webkit browsers on OS X abort momentum scrolls when the target - // of the scroll event is removed from the scrollable element. - // This hack (see related code in patchDisplay) makes sure the - // element is kept around. - if (dy && mac && webkit) { - outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) { - for (var i = 0; i < view.length; i++) { - if (view[i].node == cur) { - cm.display.currentWheelTarget = cur; - break outer; - } - } - } - } - - // On some browsers, horizontal scrolling will cause redraws to - // happen before the gutter has been realigned, causing it to - // wriggle around in a most unseemly way. When we have an - // estimated pixels/delta value, we just handle horizontal - // scrolling entirely here. It'll be slightly off from native, but - // better than glitching out. - if (dx && !gecko && !presto && wheelPixelsPerUnit != null) { - if (dy && canScrollY) - setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight))); - setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth))); - // Only prevent default scrolling if vertical scrolling is - // actually possible. Otherwise, it causes vertical scroll - // jitter on OSX trackpads when deltaX is small and deltaY - // is large (issue #3579) - if (!dy || (dy && canScrollY)) - e_preventDefault(e); - display.wheelStartX = null; // Abort measurement, if in progress - return; - } - - // 'Project' the visible viewport to cover the area that is being - // scrolled into view (if we know enough to estimate it). - if (dy && wheelPixelsPerUnit != null) { - var pixels = dy * wheelPixelsPerUnit; - var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; - if (pixels < 0) top = Math.max(0, top + pixels - 50); - else bot = Math.min(cm.doc.height, bot + pixels + 50); - updateDisplaySimple(cm, {top: top, bottom: bot}); - } - - if (wheelSamples < 20) { - if (display.wheelStartX == null) { - display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop; - display.wheelDX = dx; display.wheelDY = dy; - setTimeout(function() { - if (display.wheelStartX == null) return; - var movedX = scroll.scrollLeft - display.wheelStartX; - var movedY = scroll.scrollTop - display.wheelStartY; - var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || - (movedX && display.wheelDX && movedX / display.wheelDX); - display.wheelStartX = display.wheelStartY = null; - if (!sample) return; - wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1); - ++wheelSamples; - }, 200); - } else { - display.wheelDX += dx; display.wheelDY += dy; - } - } - } - - // KEY EVENTS - - // Run a handler that was bound to a key. - function doHandleBinding(cm, bound, dropShift) { - if (typeof bound == "string") { - bound = commands[bound]; - if (!bound) return false; - } - // Ensure previous input has been read, so that the handler sees a - // consistent view of the document - cm.display.input.ensurePolled(); - var prevShift = cm.display.shift, done = false; - try { - if (cm.isReadOnly()) cm.state.suppressEdits = true; - if (dropShift) cm.display.shift = false; - done = bound(cm) != Pass; - } finally { - cm.display.shift = prevShift; - cm.state.suppressEdits = false; - } - return done; - } - - function lookupKeyForEditor(cm, name, handle) { - for (var i = 0; i < cm.state.keyMaps.length; i++) { - var result = lookupKey(name, cm.state.keyMaps[i], handle, cm); - if (result) return result; - } - return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm)) - || lookupKey(name, cm.options.keyMap, handle, cm); - } - - var stopSeq = new Delayed; - function dispatchKey(cm, name, e, handle) { - var seq = cm.state.keySeq; - if (seq) { - if (isModifierKey(name)) return "handled"; - stopSeq.set(50, function() { - if (cm.state.keySeq == seq) { - cm.state.keySeq = null; - cm.display.input.reset(); - } - }); - name = seq + " " + name; - } - var result = lookupKeyForEditor(cm, name, handle); - - if (result == "multi") - cm.state.keySeq = name; - if (result == "handled") - signalLater(cm, "keyHandled", cm, name, e); - - if (result == "handled" || result == "multi") { - e_preventDefault(e); - restartBlink(cm); - } - - if (seq && !result && /\'$/.test(name)) { - e_preventDefault(e); - return true; - } - return !!result; - } - - // Handle a key from the keydown event. - function handleKeyBinding(cm, e) { - var name = keyName(e, true); - if (!name) return false; - - if (e.shiftKey && !cm.state.keySeq) { - // First try to resolve full name (including 'Shift-'). Failing - // that, see if there is a cursor-motion command (starting with - // 'go') bound to the keyname without 'Shift-'. - return dispatchKey(cm, "Shift-" + name, e, function(b) {return doHandleBinding(cm, b, true);}) - || dispatchKey(cm, name, e, function(b) { - if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) - return doHandleBinding(cm, b); - }); - } else { - return dispatchKey(cm, name, e, function(b) { return doHandleBinding(cm, b); }); - } - } - - // Handle a key from the keypress event - function handleCharBinding(cm, e, ch) { - return dispatchKey(cm, "'" + ch + "'", e, - function(b) { return doHandleBinding(cm, b, true); }); - } - - var lastStoppedKey = null; - function onKeyDown(e) { - var cm = this; - cm.curOp.focus = activeElt(); - if (signalDOMEvent(cm, e)) return; - // IE does strange things with escape. - if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false; - var code = e.keyCode; - cm.display.shift = code == 16 || e.shiftKey; - var handled = handleKeyBinding(cm, e); - if (presto) { - lastStoppedKey = handled ? code : null; - // Opera has no cut event... we try to at least catch the key combo - if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) - cm.replaceSelection("", null, "cut"); - } - - // Turn mouse into crosshair when Alt is held on Mac. - if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className)) - showCrossHair(cm); - } - - function showCrossHair(cm) { - var lineDiv = cm.display.lineDiv; - addClass(lineDiv, "CodeMirror-crosshair"); - - function up(e) { - if (e.keyCode == 18 || !e.altKey) { - rmClass(lineDiv, "CodeMirror-crosshair"); - off(document, "keyup", up); - off(document, "mouseover", up); - } - } - on(document, "keyup", up); - on(document, "mouseover", up); - } - - function onKeyUp(e) { - if (e.keyCode == 16) this.doc.sel.shift = false; - signalDOMEvent(this, e); - } - - function onKeyPress(e) { - var cm = this; - if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return; - var keyCode = e.keyCode, charCode = e.charCode; - if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;} - if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) return; - var ch = String.fromCharCode(charCode == null ? keyCode : charCode); - if (handleCharBinding(cm, e, ch)) return; - cm.display.input.onKeyPress(e); - } - - // FOCUS/BLUR EVENTS - - function delayBlurEvent(cm) { - cm.state.delayingBlurEvent = true; - setTimeout(function() { - if (cm.state.delayingBlurEvent) { - cm.state.delayingBlurEvent = false; - onBlur(cm); - } - }, 100); - } - - function onFocus(cm) { - if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false; - - if (cm.options.readOnly == "nocursor") return; - if (!cm.state.focused) { - signal(cm, "focus", cm); - cm.state.focused = true; - addClass(cm.display.wrapper, "CodeMirror-focused"); - // This test prevents this from firing when a context - // menu is closed (since the input reset would kill the - // select-all detection hack) - if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) { - cm.display.input.reset(); - if (webkit) setTimeout(function() { cm.display.input.reset(true); }, 20); // Issue #1730 - } - cm.display.input.receivedFocus(); - } - restartBlink(cm); - } - function onBlur(cm) { - if (cm.state.delayingBlurEvent) return; - - if (cm.state.focused) { - signal(cm, "blur", cm); - cm.state.focused = false; - rmClass(cm.display.wrapper, "CodeMirror-focused"); - } - clearInterval(cm.display.blinker); - setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150); - } - - // CONTEXT MENU HANDLING - - // To make the context menu work, we need to briefly unhide the - // textarea (making it as unobtrusive as possible) to let the - // right-click take effect on it. - function onContextMenu(cm, e) { - if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return; - if (signalDOMEvent(cm, e, "contextmenu")) return; - cm.display.input.onContextMenu(e); - } - - function contextMenuInGutter(cm, e) { - if (!hasHandler(cm, "gutterContextMenu")) return false; - return gutterEvent(cm, e, "gutterContextMenu", false); - } - - // UPDATING - - // Compute the position of the end of a change (its 'to' property - // refers to the pre-change end). - var changeEnd = CodeMirror.changeEnd = function(change) { - if (!change.text) return change.to; - return Pos(change.from.line + change.text.length - 1, - lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)); - }; - - // Adjust a position to refer to the post-change position of the - // same text, or the end of the change if the change covers it. - function adjustForChange(pos, change) { - if (cmp(pos, change.from) < 0) return pos; - if (cmp(pos, change.to) <= 0) return changeEnd(change); - - var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; - if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch; - return Pos(line, ch); - } - - function computeSelAfterChange(doc, change) { - var out = []; - for (var i = 0; i < doc.sel.ranges.length; i++) { - var range = doc.sel.ranges[i]; - out.push(new Range(adjustForChange(range.anchor, change), - adjustForChange(range.head, change))); - } - return normalizeSelection(out, doc.sel.primIndex); - } - - function offsetPos(pos, old, nw) { - if (pos.line == old.line) - return Pos(nw.line, pos.ch - old.ch + nw.ch); - else - return Pos(nw.line + (pos.line - old.line), pos.ch); - } - - // Used by replaceSelections to allow moving the selection to the - // start or around the replaced test. Hint may be "start" or "around". - function computeReplacedSel(doc, changes, hint) { - var out = []; - var oldPrev = Pos(doc.first, 0), newPrev = oldPrev; - for (var i = 0; i < changes.length; i++) { - var change = changes[i]; - var from = offsetPos(change.from, oldPrev, newPrev); - var to = offsetPos(changeEnd(change), oldPrev, newPrev); - oldPrev = change.to; - newPrev = to; - if (hint == "around") { - var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0; - out[i] = new Range(inv ? to : from, inv ? from : to); - } else { - out[i] = new Range(from, from); - } - } - return new Selection(out, doc.sel.primIndex); - } - - // Allow "beforeChange" event handlers to influence a change - function filterChange(doc, change, update) { - var obj = { - canceled: false, - from: change.from, - to: change.to, - text: change.text, - origin: change.origin, - cancel: function() { this.canceled = true; } - }; - if (update) obj.update = function(from, to, text, origin) { - if (from) this.from = clipPos(doc, from); - if (to) this.to = clipPos(doc, to); - if (text) this.text = text; - if (origin !== undefined) this.origin = origin; - }; - signal(doc, "beforeChange", doc, obj); - if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj); - - if (obj.canceled) return null; - return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}; - } - - // Apply a change to a document, and add it to the document's - // history, and propagating it to all linked documents. - function makeChange(doc, change, ignoreReadOnly) { - if (doc.cm) { - if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly); - if (doc.cm.state.suppressEdits) return; - } - - if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { - change = filterChange(doc, change, true); - if (!change) return; - } - - // Possibly split or suppress the update based on the presence - // of read-only spans in its range. - var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); - if (split) { - for (var i = split.length - 1; i >= 0; --i) - makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text}); - } else { - makeChangeInner(doc, change); - } - } - - function makeChangeInner(doc, change) { - if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return; - var selAfter = computeSelAfterChange(doc, change); - addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); - - makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); - var rebased = []; - - linkedDocs(doc, function(doc, sharedHist) { + // Propagate to the linked documents + linkedDocs(doc, function (doc, sharedHist) { if (!sharedHist && indexOf(rebased, doc.history) == -1) { - rebaseHist(doc.history, change); - rebased.push(doc.history); + rebaseHist(doc.history, change) + rebased.push(doc.history) } - makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)); - }); + makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)) + }) + }; + + for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) { + var returned = loop( i$1 ); + + if ( returned ) return returned.v; + } +} + +// Sub-views need their line numbers shifted when text is added +// above or below them in the parent document. +function shiftDoc(doc, distance) { + if (distance == 0) { return } + doc.first += distance + doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range( + Pos(range.anchor.line + distance, range.anchor.ch), + Pos(range.head.line + distance, range.head.ch) + ); }), doc.sel.primIndex) + if (doc.cm) { + regChange(doc.cm, doc.first, doc.first - distance, distance) + for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++) + { regLineChange(doc.cm, l, "gutter") } + } +} + +// More lower-level change function, handling only a single document +// (not linked ones). +function makeChangeSingleDoc(doc, change, selAfter, spans) { + if (doc.cm && !doc.cm.curOp) + { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) } + + if (change.to.line < doc.first) { + shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)) + return + } + if (change.from.line > doc.lastLine()) { return } + + // Clip the change to the size of this doc + if (change.from.line < doc.first) { + var shift = change.text.length - 1 - (doc.first - change.from.line) + shiftDoc(doc, shift) + change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), + text: [lst(change.text)], origin: change.origin} + } + var last = doc.lastLine() + if (change.to.line > last) { + change = {from: change.from, to: Pos(last, getLine(doc, last).text.length), + text: [change.text[0]], origin: change.origin} } - // Revert a change stored in a document's history. - function makeChangeFromHistory(doc, type, allowSelectionOnly) { - if (doc.cm && doc.cm.state.suppressEdits && !allowSelectionOnly) return; + change.removed = getBetween(doc, change.from, change.to) - var hist = doc.history, event, selAfter = doc.sel; - var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done; + if (!selAfter) { selAfter = computeSelAfterChange(doc, change) } + if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans) } + else { updateDoc(doc, change, spans) } + setSelectionNoUndo(doc, selAfter, sel_dontScroll) +} - // Verify that there is a useable event (so that ctrl-z won't - // needlessly clear selection events) - for (var i = 0; i < source.length; i++) { - event = source[i]; - if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges) - break; +// Handle the interaction of a change to a document with the editor +// that this document is part of. +function makeChangeSingleDocInEditor(cm, change, spans) { + var doc = cm.doc, display = cm.display, from = change.from, to = change.to + + var recomputeMaxLength = false, checkWidthStart = from.line + if (!cm.options.lineWrapping) { + checkWidthStart = lineNo(visualLine(getLine(doc, from.line))) + doc.iter(checkWidthStart, to.line + 1, function (line) { + if (line == display.maxLine) { + recomputeMaxLength = true + return true + } + }) + } + + if (doc.sel.contains(change.from, change.to) > -1) + { signalCursorActivity(cm) } + + updateDoc(doc, change, spans, estimateHeight(cm)) + + if (!cm.options.lineWrapping) { + doc.iter(checkWidthStart, from.line + change.text.length, function (line) { + var len = lineLength(line) + if (len > display.maxLineLength) { + display.maxLine = line + display.maxLineLength = len + display.maxLineChanged = true + recomputeMaxLength = false + } + }) + if (recomputeMaxLength) { cm.curOp.updateMaxLine = true } + } + + // Adjust frontier, schedule worker + doc.frontier = Math.min(doc.frontier, from.line) + startWorker(cm, 400) + + var lendiff = change.text.length - (to.line - from.line) - 1 + // Remember that these lines changed, for updating the display + if (change.full) + { regChange(cm) } + else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change)) + { regLineChange(cm, from.line, "text") } + else + { regChange(cm, from.line, to.line + 1, lendiff) } + + var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change") + if (changeHandler || changesHandler) { + var obj = { + from: from, to: to, + text: change.text, + removed: change.removed, + origin: change.origin } - if (i == source.length) return; - hist.lastOrigin = hist.lastSelOrigin = null; + if (changeHandler) { signalLater(cm, "change", cm, obj) } + if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj) } + } + cm.display.selForContextMenu = null +} - for (;;) { - event = source.pop(); - if (event.ranges) { - pushSelectionToHistory(event, dest); - if (allowSelectionOnly && !event.equals(doc.sel)) { - setSelection(doc, event, {clearRedo: false}); - return; +function replaceRange(doc, code, from, to, origin) { + if (!to) { to = from } + if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp } + if (typeof code == "string") { code = doc.splitLines(code) } + makeChange(doc, {from: from, to: to, text: code, origin: origin}) +} + +// Rebasing/resetting history to deal with externally-sourced changes + +function rebaseHistSelSingle(pos, from, to, diff) { + if (to < pos.line) { + pos.line += diff + } else if (from < pos.line) { + pos.line = from + pos.ch = 0 + } +} + +// Tries to rebase an array of history events given a change in the +// document. If the change touches the same lines as the event, the +// event, and everything 'behind' it, is discarded. If the change is +// before the event, the event's positions are updated. Uses a +// copy-on-write scheme for the positions, to avoid having to +// reallocate them all on every rebase, but also avoid problems with +// shared position objects being unsafely updated. +function rebaseHistArray(array, from, to, diff) { + for (var i = 0; i < array.length; ++i) { + var sub = array[i], ok = true + if (sub.ranges) { + if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true } + for (var j = 0; j < sub.ranges.length; j++) { + rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff) + rebaseHistSelSingle(sub.ranges[j].head, from, to, diff) + } + continue + } + for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) { + var cur = sub.changes[j$1] + if (to < cur.from.line) { + cur.from = Pos(cur.from.line + diff, cur.from.ch) + cur.to = Pos(cur.to.line + diff, cur.to.ch) + } else if (from <= cur.to.line) { + ok = false + break + } + } + if (!ok) { + array.splice(0, i + 1) + i = 0 + } + } +} + +function rebaseHist(hist, change) { + var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1 + rebaseHistArray(hist.done, from, to, diff) + rebaseHistArray(hist.undone, from, to, diff) +} + +// Utility for applying a change to a line by handle or number, +// returning the number and optionally registering the line as +// changed. +function changeLine(doc, handle, changeType, op) { + var no = handle, line = handle + if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)) } + else { no = lineNo(handle) } + if (no == null) { return null } + if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType) } + return line +} + +// The document is represented as a BTree consisting of leaves, with +// chunk of lines in them, and branches, with up to ten leaves or +// other branch nodes below them. The top node is always a branch +// node, and is the document object itself (meaning it has +// additional methods and properties). +// +// All nodes have parent links. The tree is used both to go from +// line numbers to line objects, and to go from objects to numbers. +// It also indexes by height, and is used to convert between height +// and line object, and to find the total height of the document. +// +// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html + +function LeafChunk(lines) { + var this$1 = this; + + this.lines = lines + this.parent = null + var height = 0 + for (var i = 0; i < lines.length; ++i) { + lines[i].parent = this$1 + height += lines[i].height + } + this.height = height +} + +LeafChunk.prototype = { + chunkSize: function() { return this.lines.length }, + // Remove the n lines at offset 'at'. + removeInner: function(at, n) { + var this$1 = this; + + for (var i = at, e = at + n; i < e; ++i) { + var line = this$1.lines[i] + this$1.height -= line.height + cleanUpLine(line) + signalLater(line, "delete") + } + this.lines.splice(at, n) + }, + // Helper used to collapse a small branch into a single leaf. + collapse: function(lines) { + lines.push.apply(lines, this.lines) + }, + // Insert the given array of lines at offset 'at', count them as + // having the given height. + insertInner: function(at, lines, height) { + var this$1 = this; + + this.height += height + this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)) + for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1 } + }, + // Used to iterate over a part of the tree. + iterN: function(at, n, op) { + var this$1 = this; + + for (var e = at + n; at < e; ++at) + { if (op(this$1.lines[at])) { return true } } + } +} + +function BranchChunk(children) { + var this$1 = this; + + this.children = children + var size = 0, height = 0 + for (var i = 0; i < children.length; ++i) { + var ch = children[i] + size += ch.chunkSize(); height += ch.height + ch.parent = this$1 + } + this.size = size + this.height = height + this.parent = null +} + +BranchChunk.prototype = { + chunkSize: function() { return this.size }, + removeInner: function(at, n) { + var this$1 = this; + + this.size -= n + for (var i = 0; i < this.children.length; ++i) { + var child = this$1.children[i], sz = child.chunkSize() + if (at < sz) { + var rm = Math.min(n, sz - at), oldHeight = child.height + child.removeInner(at, rm) + this$1.height -= oldHeight - child.height + if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null } + if ((n -= rm) == 0) { break } + at = 0 + } else { at -= sz } + } + // If the result is smaller than 25 lines, ensure that it is a + // single leaf node. + if (this.size - n < 25 && + (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) { + var lines = [] + this.collapse(lines) + this.children = [new LeafChunk(lines)] + this.children[0].parent = this + } + }, + collapse: function(lines) { + var this$1 = this; + + for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines) } + }, + insertInner: function(at, lines, height) { + var this$1 = this; + + this.size += lines.length + this.height += height + for (var i = 0; i < this.children.length; ++i) { + var child = this$1.children[i], sz = child.chunkSize() + if (at <= sz) { + child.insertInner(at, lines, height) + if (child.lines && child.lines.length > 50) { + // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced. + // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest. + var remaining = child.lines.length % 25 + 25 + for (var pos = remaining; pos < child.lines.length;) { + var leaf = new LeafChunk(child.lines.slice(pos, pos += 25)) + child.height -= leaf.height + this$1.children.splice(++i, 0, leaf) + leaf.parent = this$1 + } + child.lines = child.lines.slice(0, remaining) + this$1.maybeSpill() } - selAfter = event; + break } - else break; + at -= sz } - - // Build up a reverse change object to add to the opposite history - // stack (redo when undoing, and vice versa). - var antiChanges = []; - pushSelectionToHistory(selAfter, dest); - dest.push({changes: antiChanges, generation: hist.generation}); - hist.generation = event.generation || ++hist.maxGeneration; - - var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); - - for (var i = event.changes.length - 1; i >= 0; --i) { - var change = event.changes[i]; - change.origin = type; - if (filter && !filterChange(doc, change, false)) { - source.length = 0; - return; + }, + // When a node has grown, check whether it should be split. + maybeSpill: function() { + if (this.children.length <= 10) { return } + var me = this + do { + var spilled = me.children.splice(me.children.length - 5, 5) + var sibling = new BranchChunk(spilled) + if (!me.parent) { // Become the parent node + var copy = new BranchChunk(me.children) + copy.parent = me + me.children = [copy, sibling] + me = copy + } else { + me.size -= sibling.size + me.height -= sibling.height + var myIndex = indexOf(me.parent.children, me) + me.parent.children.splice(myIndex + 1, 0, sibling) } + sibling.parent = me.parent + } while (me.children.length > 10) + me.parent.maybeSpill() + }, + iterN: function(at, n, op) { + var this$1 = this; - antiChanges.push(historyChangeFromChange(doc, change)); - - var after = i ? computeSelAfterChange(doc, change) : lst(source); - makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); - if (!i && doc.cm) doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); - var rebased = []; - - // Propagate to the linked documents - linkedDocs(doc, function(doc, sharedHist) { - if (!sharedHist && indexOf(rebased, doc.history) == -1) { - rebaseHist(doc.history, change); - rebased.push(doc.history); - } - makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)); - }); + for (var i = 0; i < this.children.length; ++i) { + var child = this$1.children[i], sz = child.chunkSize() + if (at < sz) { + var used = Math.min(n, sz - at) + if (child.iterN(at, used, op)) { return true } + if ((n -= used) == 0) { break } + at = 0 + } else { at -= sz } } } +} - // Sub-views need their line numbers shifted when text is added - // above or below them in the parent document. - function shiftDoc(doc, distance) { - if (distance == 0) return; - doc.first += distance; - doc.sel = new Selection(map(doc.sel.ranges, function(range) { - return new Range(Pos(range.anchor.line + distance, range.anchor.ch), - Pos(range.head.line + distance, range.head.ch)); - }), doc.sel.primIndex); - if (doc.cm) { - regChange(doc.cm, doc.first, doc.first - distance, distance); - for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++) - regLineChange(doc.cm, l, "gutter"); +// Line widgets are block elements displayed above or below a line. + +function LineWidget(doc, node, options) { + var this$1 = this; + + if (options) { for (var opt in options) { if (options.hasOwnProperty(opt)) + { this$1[opt] = options[opt] } } } + this.doc = doc + this.node = node +} +eventMixin(LineWidget) + +function adjustScrollWhenAboveVisible(cm, line, diff) { + if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) + { addToScrollPos(cm, null, diff) } +} + +LineWidget.prototype.clear = function() { + var this$1 = this; + + var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line) + if (no == null || !ws) { return } + for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1) } } + if (!ws.length) { line.widgets = null } + var height = widgetHeight(this) + updateLineHeight(line, Math.max(0, line.height - height)) + if (cm) { runInOp(cm, function () { + adjustScrollWhenAboveVisible(cm, line, -height) + regLineChange(cm, no, "widget") + }) } +} +LineWidget.prototype.changed = function() { + var oldH = this.height, cm = this.doc.cm, line = this.line + this.height = null + var diff = widgetHeight(this) - oldH + if (!diff) { return } + updateLineHeight(line, line.height + diff) + if (cm) { runInOp(cm, function () { + cm.curOp.forceUpdate = true + adjustScrollWhenAboveVisible(cm, line, diff) + }) } +} + +function addLineWidget(doc, handle, node, options) { + var widget = new LineWidget(doc, node, options) + var cm = doc.cm + if (cm && widget.noHScroll) { cm.display.alignWidgets = true } + changeLine(doc, handle, "widget", function (line) { + var widgets = line.widgets || (line.widgets = []) + if (widget.insertAt == null) { widgets.push(widget) } + else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget) } + widget.line = line + if (cm && !lineIsHidden(doc, line)) { + var aboveVisible = heightAtLine(line) < doc.scrollTop + updateLineHeight(line, line.height + widgetHeight(widget)) + if (aboveVisible) { addToScrollPos(cm, null, widget.height) } + cm.curOp.forceUpdate = true + } + return true + }) + return widget +} + +// TEXTMARKERS + +// Created with markText and setBookmark methods. A TextMarker is a +// handle that can be used to clear or find a marked position in the +// document. Line objects hold arrays (markedSpans) containing +// {from, to, marker} object pointing to such marker objects, and +// indicating that such a marker is present on that line. Multiple +// lines may point to the same marker when it spans across lines. +// The spans will have null for their from/to properties when the +// marker continues beyond the start/end of the line. Markers have +// links back to the lines they currently touch. + +// Collapsed markers have unique ids, in order to be able to order +// them, which is needed for uniquely determining an outer marker +// when they overlap (they may nest, but not partially overlap). +var nextMarkerId = 0 + +function TextMarker(doc, type) { + this.lines = [] + this.type = type + this.doc = doc + this.id = ++nextMarkerId +} +eventMixin(TextMarker) + +// Clear the marker. +TextMarker.prototype.clear = function() { + var this$1 = this; + + if (this.explicitlyCleared) { return } + var cm = this.doc.cm, withOp = cm && !cm.curOp + if (withOp) { startOperation(cm) } + if (hasHandler(this, "clear")) { + var found = this.find() + if (found) { signalLater(this, "clear", found.from, found.to) } + } + var min = null, max = null + for (var i = 0; i < this.lines.length; ++i) { + var line = this$1.lines[i] + var span = getMarkedSpanFor(line.markedSpans, this$1) + if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), "text") } + else if (cm) { + if (span.to != null) { max = lineNo(line) } + if (span.from != null) { min = lineNo(line) } + } + line.markedSpans = removeMarkedSpan(line.markedSpans, span) + if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm) + { updateLineHeight(line, textHeight(cm.display)) } + } + if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) { + var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual) + if (len > cm.display.maxLineLength) { + cm.display.maxLine = visual + cm.display.maxLineLength = len + cm.display.maxLineChanged = true + } + } } + + if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1) } + this.lines.length = 0 + this.explicitlyCleared = true + if (this.atomic && this.doc.cantEdit) { + this.doc.cantEdit = false + if (cm) { reCheckSelection(cm.doc) } + } + if (cm) { signalLater(cm, "markerCleared", cm, this) } + if (withOp) { endOperation(cm) } + if (this.parent) { this.parent.clear() } +} + +// Find the position of the marker in the document. Returns a {from, +// to} object by default. Side can be passed to get a specific side +// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the +// Pos objects returned contain a line object, rather than a line +// number (used to prevent looking up the same line twice). +TextMarker.prototype.find = function(side, lineObj) { + var this$1 = this; + + if (side == null && this.type == "bookmark") { side = 1 } + var from, to + for (var i = 0; i < this.lines.length; ++i) { + var line = this$1.lines[i] + var span = getMarkedSpanFor(line.markedSpans, this$1) + if (span.from != null) { + from = Pos(lineObj ? line : lineNo(line), span.from) + if (side == -1) { return from } + } + if (span.to != null) { + to = Pos(lineObj ? line : lineNo(line), span.to) + if (side == 1) { return to } } } + return from && {from: from, to: to} +} - // More lower-level change function, handling only a single document - // (not linked ones). - function makeChangeSingleDoc(doc, change, selAfter, spans) { - if (doc.cm && !doc.cm.curOp) - return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans); - - if (change.to.line < doc.first) { - shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)); - return; +// Signals that the marker's widget changed, and surrounding layout +// should be recomputed. +TextMarker.prototype.changed = function() { + var pos = this.find(-1, true), widget = this, cm = this.doc.cm + if (!pos || !cm) { return } + runInOp(cm, function () { + var line = pos.line, lineN = lineNo(pos.line) + var view = findViewForLine(cm, lineN) + if (view) { + clearLineMeasurementCacheFor(view) + cm.curOp.selectionChanged = cm.curOp.forceUpdate = true } - if (change.from.line > doc.lastLine()) return; - - // Clip the change to the size of this doc - if (change.from.line < doc.first) { - var shift = change.text.length - 1 - (doc.first - change.from.line); - shiftDoc(doc, shift); - change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), - text: [lst(change.text)], origin: change.origin}; - } - var last = doc.lastLine(); - if (change.to.line > last) { - change = {from: change.from, to: Pos(last, getLine(doc, last).text.length), - text: [change.text[0]], origin: change.origin}; + cm.curOp.updateMaxLine = true + if (!lineIsHidden(widget.doc, line) && widget.height != null) { + var oldHeight = widget.height + widget.height = null + var dHeight = widgetHeight(widget) - oldHeight + if (dHeight) + { updateLineHeight(line, line.height + dHeight) } } + }) +} - change.removed = getBetween(doc, change.from, change.to); +TextMarker.prototype.attachLine = function(line) { + if (!this.lines.length && this.doc.cm) { + var op = this.doc.cm.curOp + if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) + { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this) } + } + this.lines.push(line) +} +TextMarker.prototype.detachLine = function(line) { + this.lines.splice(indexOf(this.lines, line), 1) + if (!this.lines.length && this.doc.cm) { + var op = this.doc.cm.curOp + ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this) + } +} - if (!selAfter) selAfter = computeSelAfterChange(doc, change); - if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans); - else updateDoc(doc, change, spans); - setSelectionNoUndo(doc, selAfter, sel_dontScroll); +// Create a marker, wire it up to the right lines, and +function markText(doc, from, to, options, type) { + // Shared markers (across linked documents) are handled separately + // (markTextShared will call out to this again, once per + // document). + if (options && options.shared) { return markTextShared(doc, from, to, options, type) } + // Ensure we are in an operation. + if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) } + + var marker = new TextMarker(doc, type), diff = cmp(from, to) + if (options) { copyObj(options, marker, false) } + // Don't connect empty markers unless clearWhenEmpty is false + if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false) + { return marker } + if (marker.replacedWith) { + // Showing up as a widget implies collapsed (widget replaces text) + marker.collapsed = true + marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget") + if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true") } + if (options.insertLeft) { marker.widgetNode.insertLeft = true } + } + if (marker.collapsed) { + if (conflictingCollapsedRange(doc, from.line, from, to, marker) || + from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker)) + { throw new Error("Inserting collapsed marker partially overlapping an existing one") } + seeCollapsedSpans() } - // Handle the interaction of a change to a document with the editor - // that this document is part of. - function makeChangeSingleDocInEditor(cm, change, spans) { - var doc = cm.doc, display = cm.display, from = change.from, to = change.to; + if (marker.addToHistory) + { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN) } - var recomputeMaxLength = false, checkWidthStart = from.line; - if (!cm.options.lineWrapping) { - checkWidthStart = lineNo(visualLine(getLine(doc, from.line))); - doc.iter(checkWidthStart, to.line + 1, function(line) { - if (line == display.maxLine) { - recomputeMaxLength = true; - return true; - } - }); - } + var curLine = from.line, cm = doc.cm, updateMaxLine + doc.iter(curLine, to.line + 1, function (line) { + if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine) + { updateMaxLine = true } + if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0) } + addMarkedSpan(line, new MarkedSpan(marker, + curLine == from.line ? from.ch : null, + curLine == to.line ? to.ch : null)) + ++curLine + }) + // lineIsHidden depends on the presence of the spans, so needs a second pass + if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) { + if (lineIsHidden(doc, line)) { updateLineHeight(line, 0) } + }) } - if (doc.sel.contains(change.from, change.to) > -1) - signalCursorActivity(cm); + if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }) } - updateDoc(doc, change, spans, estimateHeight(cm)); - - if (!cm.options.lineWrapping) { - doc.iter(checkWidthStart, from.line + change.text.length, function(line) { - var len = lineLength(line); - if (len > display.maxLineLength) { - display.maxLine = line; - display.maxLineLength = len; - display.maxLineChanged = true; - recomputeMaxLength = false; - } - }); - if (recomputeMaxLength) cm.curOp.updateMaxLine = true; - } - - // Adjust frontier, schedule worker - doc.frontier = Math.min(doc.frontier, from.line); - startWorker(cm, 400); - - var lendiff = change.text.length - (to.line - from.line) - 1; - // Remember that these lines changed, for updating the display - if (change.full) - regChange(cm); - else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change)) - regLineChange(cm, from.line, "text"); - else - regChange(cm, from.line, to.line + 1, lendiff); - - var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change"); - if (changeHandler || changesHandler) { - var obj = { - from: from, to: to, - text: change.text, - removed: change.removed, - origin: change.origin - }; - if (changeHandler) signalLater(cm, "change", cm, obj); - if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); - } - cm.display.selForContextMenu = null; + if (marker.readOnly) { + seeReadOnlySpans() + if (doc.history.done.length || doc.history.undone.length) + { doc.clearHistory() } } - - function replaceRange(doc, code, from, to, origin) { - if (!to) to = from; - if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; } - if (typeof code == "string") code = doc.splitLines(code); - makeChange(doc, {from: from, to: to, text: code, origin: origin}); + if (marker.collapsed) { + marker.id = ++nextMarkerId + marker.atomic = true } + if (cm) { + // Sync editor state + if (updateMaxLine) { cm.curOp.updateMaxLine = true } + if (marker.collapsed) + { regChange(cm, from.line, to.line + 1) } + else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css) + { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text") } } + if (marker.atomic) { reCheckSelection(cm.doc) } + signalLater(cm, "markerAdded", cm, marker) + } + return marker +} - // SCROLLING THINGS INTO VIEW +// SHARED TEXTMARKERS - // If an editor sits on the top or bottom of the window, partially - // scrolled out of view, this ensures that the cursor is visible. - function maybeScrollWindow(cm, coords) { - if (signalDOMEvent(cm, "scrollCursorIntoView")) return; +// A shared marker spans multiple linked documents. It is +// implemented as a meta-marker-object controlling multiple normal +// markers. +function SharedTextMarker(markers, primary) { + var this$1 = this; - var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null; - if (coords.top + box.top < 0) doScroll = true; - else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false; - if (doScroll != null && !phantom) { - var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " + - (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " + - (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + "px; left: " + - coords.left + "px; width: 2px;"); - cm.display.lineSpace.appendChild(scrollNode); - scrollNode.scrollIntoView(doScroll); - cm.display.lineSpace.removeChild(scrollNode); + this.markers = markers + this.primary = primary + for (var i = 0; i < markers.length; ++i) + { markers[i].parent = this$1 } +} +eventMixin(SharedTextMarker) + +SharedTextMarker.prototype.clear = function() { + var this$1 = this; + + if (this.explicitlyCleared) { return } + this.explicitlyCleared = true + for (var i = 0; i < this.markers.length; ++i) + { this$1.markers[i].clear() } + signalLater(this, "clear") +} +SharedTextMarker.prototype.find = function(side, lineObj) { + return this.primary.find(side, lineObj) +} + +function markTextShared(doc, from, to, options, type) { + options = copyObj(options) + options.shared = false + var markers = [markText(doc, from, to, options, type)], primary = markers[0] + var widget = options.widgetNode + linkedDocs(doc, function (doc) { + if (widget) { options.widgetNode = widget.cloneNode(true) } + markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)) + for (var i = 0; i < doc.linked.length; ++i) + { if (doc.linked[i].isParent) { return } } + primary = lst(markers) + }) + return new SharedTextMarker(markers, primary) +} + +function findSharedMarkers(doc) { + return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; }) +} + +function copySharedMarkers(doc, markers) { + for (var i = 0; i < markers.length; i++) { + var marker = markers[i], pos = marker.find() + var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to) + if (cmp(mFrom, mTo)) { + var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type) + marker.markers.push(subMark) + subMark.parent = marker } } +} - // Scroll a given position into view (immediately), verifying that - // it actually became visible (as line heights are accurately - // measured, the position of something may 'drift' during drawing). - function scrollPosIntoView(cm, pos, end, margin) { - if (margin == null) margin = 0; - for (var limit = 0; limit < 5; limit++) { - var changed = false, coords = cursorCoords(cm, pos); - var endCoords = !end || end == pos ? coords : cursorCoords(cm, end); - var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left), - Math.min(coords.top, endCoords.top) - margin, - Math.max(coords.left, endCoords.left), - Math.max(coords.bottom, endCoords.bottom) + margin); - var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; - if (scrollPos.scrollTop != null) { - setScrollTop(cm, scrollPos.scrollTop); - if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true; - } - if (scrollPos.scrollLeft != null) { - setScrollLeft(cm, scrollPos.scrollLeft); - if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true; - } - if (!changed) break; - } - return coords; - } - - // Scroll a given set of coordinates into view (immediately). - function scrollIntoView(cm, x1, y1, x2, y2) { - var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2); - if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop); - if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft); - } - - // Calculate a new scroll position needed to scroll the given - // rectangle into view. Returns an object with scrollTop and - // scrollLeft properties. When these are undefined, the - // vertical/horizontal position does not need to be adjusted. - function calculateScrollPos(cm, x1, y1, x2, y2) { - var display = cm.display, snapMargin = textHeight(cm.display); - if (y1 < 0) y1 = 0; - var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop; - var screen = displayHeight(cm), result = {}; - if (y2 - y1 > screen) y2 = y1 + screen; - var docBottom = cm.doc.height + paddingVert(display); - var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin; - if (y1 < screentop) { - result.scrollTop = atTop ? 0 : y1; - } else if (y2 > screentop + screen) { - var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen); - if (newTop != screentop) result.scrollTop = newTop; - } - - var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft; - var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0); - var tooWide = x2 - x1 > screenw; - if (tooWide) x2 = x1 + screenw; - if (x1 < 10) - result.scrollLeft = 0; - else if (x1 < screenleft) - result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10)); - else if (x2 > screenw + screenleft - 3) - result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw; - return result; - } - - // Store a relative adjustment to the scroll position in the current - // operation (to be applied when the operation finishes). - function addToScrollPos(cm, left, top) { - if (left != null || top != null) resolveScrollToPos(cm); - if (left != null) - cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left; - if (top != null) - cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top; - } - - // Make sure that at the end of the operation the current cursor is - // shown. - function ensureCursorVisible(cm) { - resolveScrollToPos(cm); - var cur = cm.getCursor(), from = cur, to = cur; - if (!cm.options.lineWrapping) { - from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur; - to = Pos(cur.line, cur.ch + 1); - } - cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true}; - } - - // When an operation has its scrollToPos property set, and another - // scroll action is applied before the end of the operation, this - // 'simulates' scrolling that position into view in a cheap way, so - // that the effect of intermediate scroll commands is not ignored. - function resolveScrollToPos(cm) { - var range = cm.curOp.scrollToPos; - if (range) { - cm.curOp.scrollToPos = null; - var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to); - var sPos = calculateScrollPos(cm, Math.min(from.left, to.left), - Math.min(from.top, to.top) - range.margin, - Math.max(from.right, to.right), - Math.max(from.bottom, to.bottom) + range.margin); - cm.scrollTo(sPos.scrollLeft, sPos.scrollTop); - } - } - - // API UTILITIES - - // Indent the given line. The how parameter can be "smart", - // "add"/null, "subtract", or "prev". When aggressive is false - // (typically set to true for forced single-line indents), empty - // lines are not indented, and places where the mode returns Pass - // are left alone. - function indentLine(cm, n, how, aggressive) { - var doc = cm.doc, state; - if (how == null) how = "add"; - if (how == "smart") { - // Fall back to "prev" when the mode doesn't have an indentation - // method. - if (!doc.mode.indent) how = "prev"; - else state = getStateBefore(cm, n); - } - - var tabSize = cm.options.tabSize; - var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); - if (line.stateAfter) line.stateAfter = null; - var curSpaceString = line.text.match(/^\s*/)[0], indentation; - if (!aggressive && !/\S/.test(line.text)) { - indentation = 0; - how = "not"; - } else if (how == "smart") { - indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text); - if (indentation == Pass || indentation > 150) { - if (!aggressive) return; - how = "prev"; +function detachSharedMarkers(markers) { + var loop = function ( i ) { + var marker = markers[i], linked = [marker.primary.doc] + linkedDocs(marker.primary.doc, function (d) { return linked.push(d); }) + for (var j = 0; j < marker.markers.length; j++) { + var subMarker = marker.markers[j] + if (indexOf(linked, subMarker.doc) == -1) { + subMarker.parent = null + marker.markers.splice(j--, 1) } } - if (how == "prev") { - if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize); - else indentation = 0; - } else if (how == "add") { - indentation = curSpace + cm.options.indentUnit; - } else if (how == "subtract") { - indentation = curSpace - cm.options.indentUnit; - } else if (typeof how == "number") { - indentation = curSpace + how; - } - indentation = Math.max(0, indentation); + }; - var indentString = "", pos = 0; - if (cm.options.indentWithTabs) - for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} - if (pos < indentation) indentString += spaceStr(indentation - pos); + for (var i = 0; i < markers.length; i++) loop( i ); +} - if (indentString != curSpaceString) { - replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); - line.stateAfter = null; - return true; - } else { - // Ensure that, if the cursor was in the whitespace at the start - // of the line, it is moved to the end of that space. - for (var i = 0; i < doc.sel.ranges.length; i++) { - var range = doc.sel.ranges[i]; - if (range.head.line == n && range.head.ch < curSpaceString.length) { - var pos = Pos(n, curSpaceString.length); - replaceOneSelection(doc, i, new Range(pos, pos)); - break; - } - } - } - } +var nextDocId = 0 +var Doc = function(text, mode, firstLine, lineSep) { + if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep) } + if (firstLine == null) { firstLine = 0 } - // Utility for applying a change to a line by handle or number, - // returning the number and optionally registering the line as - // changed. - function changeLine(doc, handle, changeType, op) { - var no = handle, line = handle; - if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle)); - else no = lineNo(handle); - if (no == null) return null; - if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType); - return line; - } + BranchChunk.call(this, [new LeafChunk([new Line("", null)])]) + this.first = firstLine + this.scrollTop = this.scrollLeft = 0 + this.cantEdit = false + this.cleanGeneration = 1 + this.frontier = firstLine + var start = Pos(firstLine, 0) + this.sel = simpleSelection(start) + this.history = new History(null) + this.id = ++nextDocId + this.modeOption = mode + this.lineSep = lineSep + this.extend = false - // Helper for deleting text near the selection(s), used to implement - // backspace, delete, and similar functionality. - function deleteNearSelection(cm, compute) { - var ranges = cm.doc.sel.ranges, kill = []; - // Build up a set of ranges to kill first, merging overlapping - // ranges. + if (typeof text == "string") { text = this.splitLines(text) } + updateDoc(this, {from: start, to: start, text: text}) + setSelection(this, simpleSelection(start), sel_dontScroll) +} + +Doc.prototype = createObj(BranchChunk.prototype, { + constructor: Doc, + // Iterate over the document. Supports two forms -- with only one + // argument, it calls that for each line in the document. With + // three, it iterates over the range given by the first two (with + // the second being non-inclusive). + iter: function(from, to, op) { + if (op) { this.iterN(from - this.first, to - from, op) } + else { this.iterN(this.first, this.first + this.size, from) } + }, + + // Non-public interface for adding and removing lines. + insert: function(at, lines) { + var height = 0 + for (var i = 0; i < lines.length; ++i) { height += lines[i].height } + this.insertInner(at - this.first, lines, height) + }, + remove: function(at, n) { this.removeInner(at - this.first, n) }, + + // From here, the methods are part of the public interface. Most + // are also available from CodeMirror (editor) instances. + + getValue: function(lineSep) { + var lines = getLines(this, this.first, this.first + this.size) + if (lineSep === false) { return lines } + return lines.join(lineSep || this.lineSeparator()) + }, + setValue: docMethodOp(function(code) { + var top = Pos(this.first, 0), last = this.first + this.size - 1 + makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length), + text: this.splitLines(code), origin: "setValue", full: true}, true) + setSelection(this, simpleSelection(top)) + }), + replaceRange: function(code, from, to, origin) { + from = clipPos(this, from) + to = to ? clipPos(this, to) : from + replaceRange(this, code, from, to, origin) + }, + getRange: function(from, to, lineSep) { + var lines = getBetween(this, clipPos(this, from), clipPos(this, to)) + if (lineSep === false) { return lines } + return lines.join(lineSep || this.lineSeparator()) + }, + + getLine: function(line) {var l = this.getLineHandle(line); return l && l.text}, + + getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }}, + getLineNumber: function(line) {return lineNo(line)}, + + getLineHandleVisualStart: function(line) { + if (typeof line == "number") { line = getLine(this, line) } + return visualLine(line) + }, + + lineCount: function() {return this.size}, + firstLine: function() {return this.first}, + lastLine: function() {return this.first + this.size - 1}, + + clipPos: function(pos) {return clipPos(this, pos)}, + + getCursor: function(start) { + var range = this.sel.primary(), pos + if (start == null || start == "head") { pos = range.head } + else if (start == "anchor") { pos = range.anchor } + else if (start == "end" || start == "to" || start === false) { pos = range.to() } + else { pos = range.from() } + return pos + }, + listSelections: function() { return this.sel.ranges }, + somethingSelected: function() {return this.sel.somethingSelected()}, + + setCursor: docMethodOp(function(line, ch, options) { + setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options) + }), + setSelection: docMethodOp(function(anchor, head, options) { + setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options) + }), + extendSelection: docMethodOp(function(head, other, options) { + extendSelection(this, clipPos(this, head), other && clipPos(this, other), options) + }), + extendSelections: docMethodOp(function(heads, options) { + extendSelections(this, clipPosArray(this, heads), options) + }), + extendSelectionsBy: docMethodOp(function(f, options) { + var heads = map(this.sel.ranges, f) + extendSelections(this, clipPosArray(this, heads), options) + }), + setSelections: docMethodOp(function(ranges, primary, options) { + var this$1 = this; + + if (!ranges.length) { return } + var out = [] + for (var i = 0; i < ranges.length; i++) + { out[i] = new Range(clipPos(this$1, ranges[i].anchor), + clipPos(this$1, ranges[i].head)) } + if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex) } + setSelection(this, normalizeSelection(out, primary), options) + }), + addSelection: docMethodOp(function(anchor, head, options) { + var ranges = this.sel.ranges.slice(0) + ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor))) + setSelection(this, normalizeSelection(ranges, ranges.length - 1), options) + }), + + getSelection: function(lineSep) { + var this$1 = this; + + var ranges = this.sel.ranges, lines for (var i = 0; i < ranges.length; i++) { - var toKill = compute(ranges[i]); - while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) { - var replaced = kill.pop(); - if (cmp(replaced.from, toKill.from) < 0) { - toKill.from = replaced.from; - break; - } + var sel = getBetween(this$1, ranges[i].from(), ranges[i].to()) + lines = lines ? lines.concat(sel) : sel + } + if (lineSep === false) { return lines } + else { return lines.join(lineSep || this.lineSeparator()) } + }, + getSelections: function(lineSep) { + var this$1 = this; + + var parts = [], ranges = this.sel.ranges + for (var i = 0; i < ranges.length; i++) { + var sel = getBetween(this$1, ranges[i].from(), ranges[i].to()) + if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()) } + parts[i] = sel + } + return parts + }, + replaceSelection: function(code, collapse, origin) { + var dup = [] + for (var i = 0; i < this.sel.ranges.length; i++) + { dup[i] = code } + this.replaceSelections(dup, collapse, origin || "+input") + }, + replaceSelections: docMethodOp(function(code, collapse, origin) { + var this$1 = this; + + var changes = [], sel = this.sel + for (var i = 0; i < sel.ranges.length; i++) { + var range = sel.ranges[i] + changes[i] = {from: range.from(), to: range.to(), text: this$1.splitLines(code[i]), origin: origin} + } + var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse) + for (var i$1 = changes.length - 1; i$1 >= 0; i$1--) + { makeChange(this$1, changes[i$1]) } + if (newSel) { setSelectionReplaceHistory(this, newSel) } + else if (this.cm) { ensureCursorVisible(this.cm) } + }), + undo: docMethodOp(function() {makeChangeFromHistory(this, "undo")}), + redo: docMethodOp(function() {makeChangeFromHistory(this, "redo")}), + undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true)}), + redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true)}), + + setExtending: function(val) {this.extend = val}, + getExtending: function() {return this.extend}, + + historySize: function() { + var hist = this.history, done = 0, undone = 0 + for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done } } + for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone } } + return {undo: done, redo: undone} + }, + clearHistory: function() {this.history = new History(this.history.maxGeneration)}, + + markClean: function() { + this.cleanGeneration = this.changeGeneration(true) + }, + changeGeneration: function(forceSplit) { + if (forceSplit) + { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null } + return this.history.generation + }, + isClean: function (gen) { + return this.history.generation == (gen || this.cleanGeneration) + }, + + getHistory: function() { + return {done: copyHistoryArray(this.history.done), + undone: copyHistoryArray(this.history.undone)} + }, + setHistory: function(histData) { + var hist = this.history = new History(this.history.maxGeneration) + hist.done = copyHistoryArray(histData.done.slice(0), null, true) + hist.undone = copyHistoryArray(histData.undone.slice(0), null, true) + }, + + setGutterMarker: docMethodOp(function(line, gutterID, value) { + return changeLine(this, line, "gutter", function (line) { + var markers = line.gutterMarkers || (line.gutterMarkers = {}) + markers[gutterID] = value + if (!value && isEmpty(markers)) { line.gutterMarkers = null } + return true + }) + }), + + clearGutter: docMethodOp(function(gutterID) { + var this$1 = this; + + var i = this.first + this.iter(function (line) { + if (line.gutterMarkers && line.gutterMarkers[gutterID]) { + changeLine(this$1, line, "gutter", function () { + line.gutterMarkers[gutterID] = null + if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null } + return true + }) } - kill.push(toKill); - } - // Next, remove those actual ranges. - runInOp(cm, function() { - for (var i = kill.length - 1; i >= 0; i--) - replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); - ensureCursorVisible(cm); - }); - } + ++i + }) + }), - // Used for horizontal relative motion. Dir is -1 or 1 (left or - // right), unit can be "char", "column" (like char, but doesn't - // cross line boundaries), "word" (across next word), or "group" (to - // the start of next group of word or non-word-non-whitespace - // chars). The visually param controls whether, in right-to-left - // text, direction 1 means to move towards the next index in the - // string, or towards the character to the right of the current - // position. The resulting position will have a hitSide=true - // property if it reached the end of the document. - function findPosH(doc, pos, dir, unit, visually) { - var line = pos.line, ch = pos.ch, origDir = dir; - var lineObj = getLine(doc, line); - function findNextLine() { - var l = line + dir; - if (l < doc.first || l >= doc.first + doc.size) return false - line = l; - return lineObj = getLine(doc, l); - } - function moveOnce(boundToLine) { - var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true); - if (next == null) { - if (!boundToLine && findNextLine()) { - if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj); - else ch = dir < 0 ? lineObj.text.length : 0; - } else return false - } else ch = next; - return true; + lineInfo: function(line) { + var n + if (typeof line == "number") { + if (!isLine(this, line)) { return null } + n = line + line = getLine(this, line) + if (!line) { return null } + } else { + n = lineNo(line) + if (n == null) { return null } } + return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, + textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, + widgets: line.widgets} + }, - if (unit == "char") { - moveOnce() - } else if (unit == "column") { - moveOnce(true) - } else if (unit == "word" || unit == "group") { - var sawType = null, group = unit == "group"; - var helper = doc.cm && doc.cm.getHelper(pos, "wordChars"); - for (var first = true;; first = false) { - if (dir < 0 && !moveOnce(!first)) break; - var cur = lineObj.text.charAt(ch) || "\n"; - var type = isWordChar(cur, helper) ? "w" - : group && cur == "\n" ? "n" - : !group || /\s/.test(cur) ? null - : "p"; - if (group && !first && !type) type = "s"; - if (sawType && sawType != type) { - if (dir < 0) {dir = 1; moveOnce();} - break; + addLineClass: docMethodOp(function(handle, where, cls) { + return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { + var prop = where == "text" ? "textClass" + : where == "background" ? "bgClass" + : where == "gutter" ? "gutterClass" : "wrapClass" + if (!line[prop]) { line[prop] = cls } + else if (classTest(cls).test(line[prop])) { return false } + else { line[prop] += " " + cls } + return true + }) + }), + removeLineClass: docMethodOp(function(handle, where, cls) { + return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { + var prop = where == "text" ? "textClass" + : where == "background" ? "bgClass" + : where == "gutter" ? "gutterClass" : "wrapClass" + var cur = line[prop] + if (!cur) { return false } + else if (cls == null) { line[prop] = null } + else { + var found = cur.match(classTest(cls)) + if (!found) { return false } + var end = found.index + found[0].length + line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null + } + return true + }) + }), + + addLineWidget: docMethodOp(function(handle, node, options) { + return addLineWidget(this, handle, node, options) + }), + removeLineWidget: function(widget) { widget.clear() }, + + markText: function(from, to, options) { + return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range") + }, + setBookmark: function(pos, options) { + var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options), + insertLeft: options && options.insertLeft, + clearWhenEmpty: false, shared: options && options.shared, + handleMouseEvents: options && options.handleMouseEvents} + pos = clipPos(this, pos) + return markText(this, pos, pos, realOpts, "bookmark") + }, + findMarksAt: function(pos) { + pos = clipPos(this, pos) + var markers = [], spans = getLine(this, pos.line).markedSpans + if (spans) { for (var i = 0; i < spans.length; ++i) { + var span = spans[i] + if ((span.from == null || span.from <= pos.ch) && + (span.to == null || span.to >= pos.ch)) + { markers.push(span.marker.parent || span.marker) } + } } + return markers + }, + findMarks: function(from, to, filter) { + from = clipPos(this, from); to = clipPos(this, to) + var found = [], lineNo = from.line + this.iter(from.line, to.line + 1, function (line) { + var spans = line.markedSpans + if (spans) { for (var i = 0; i < spans.length; i++) { + var span = spans[i] + if (!(span.to != null && lineNo == from.line && from.ch >= span.to || + span.from == null && lineNo != from.line || + span.from != null && lineNo == to.line && span.from >= to.ch) && + (!filter || filter(span.marker))) + { found.push(span.marker.parent || span.marker) } + } } + ++lineNo + }) + return found + }, + getAllMarks: function() { + var markers = [] + this.iter(function (line) { + var sps = line.markedSpans + if (sps) { for (var i = 0; i < sps.length; ++i) + { if (sps[i].from != null) { markers.push(sps[i].marker) } } } + }) + return markers + }, + + posFromIndex: function(off) { + var ch, lineNo = this.first, sepSize = this.lineSeparator().length + this.iter(function (line) { + var sz = line.text.length + sepSize + if (sz > off) { ch = off; return true } + off -= sz + ++lineNo + }) + return clipPos(this, Pos(lineNo, ch)) + }, + indexFromPos: function (coords) { + coords = clipPos(this, coords) + var index = coords.ch + if (coords.line < this.first || coords.ch < 0) { return 0 } + var sepSize = this.lineSeparator().length + this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value + index += line.text.length + sepSize + }) + return index + }, + + copy: function(copyHistory) { + var doc = new Doc(getLines(this, this.first, this.first + this.size), + this.modeOption, this.first, this.lineSep) + doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft + doc.sel = this.sel + doc.extend = false + if (copyHistory) { + doc.history.undoDepth = this.history.undoDepth + doc.setHistory(this.getHistory()) + } + return doc + }, + + linkedDoc: function(options) { + if (!options) { options = {} } + var from = this.first, to = this.first + this.size + if (options.from != null && options.from > from) { from = options.from } + if (options.to != null && options.to < to) { to = options.to } + var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep) + if (options.sharedHist) { copy.history = this.history + ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist}) + copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}] + copySharedMarkers(copy, findSharedMarkers(this)) + return copy + }, + unlinkDoc: function(other) { + var this$1 = this; + + if (other instanceof CodeMirror) { other = other.doc } + if (this.linked) { for (var i = 0; i < this.linked.length; ++i) { + var link = this$1.linked[i] + if (link.doc != other) { continue } + this$1.linked.splice(i, 1) + other.unlinkDoc(this$1) + detachSharedMarkers(findSharedMarkers(this$1)) + break + } } + // If the histories were shared, split them again + if (other.history == this.history) { + var splitIds = [other.id] + linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true) + other.history = new History(null) + other.history.done = copyHistoryArray(this.history.done, splitIds) + other.history.undone = copyHistoryArray(this.history.undone, splitIds) + } + }, + iterLinkedDocs: function(f) {linkedDocs(this, f)}, + + getMode: function() {return this.mode}, + getEditor: function() {return this.cm}, + + splitLines: function(str) { + if (this.lineSep) { return str.split(this.lineSep) } + return splitLinesAuto(str) + }, + lineSeparator: function() { return this.lineSep || "\n" } +}) + +// Public alias. +Doc.prototype.eachLine = Doc.prototype.iter + +// Kludge to work around strange IE behavior where it'll sometimes +// re-fire a series of drag-related events right after the drop (#1551) +var lastDrop = 0 + +function onDrop(e) { + var cm = this + clearDragCursor(cm) + if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) + { return } + e_preventDefault(e) + if (ie) { lastDrop = +new Date } + var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files + if (!pos || cm.isReadOnly()) { return } + // Might be a file drop, in which case we simply extract the text + // and insert it. + if (files && files.length && window.FileReader && window.File) { + var n = files.length, text = Array(n), read = 0 + var loadFile = function (file, i) { + if (cm.options.allowDropFileTypes && + indexOf(cm.options.allowDropFileTypes, file.type) == -1) + { return } + + var reader = new FileReader + reader.onload = operation(cm, function () { + var content = reader.result + if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { content = "" } + text[i] = content + if (++read == n) { + pos = clipPos(cm.doc, pos) + var change = {from: pos, to: pos, + text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())), + origin: "paste"} + makeChange(cm.doc, change) + setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change))) } - - if (type) sawType = type; - if (dir > 0 && !moveOnce(!first)) break; + }) + reader.readAsText(file) + } + for (var i = 0; i < n; ++i) { loadFile(files[i], i) } + } else { // Normal drop + // Don't do a replace if the drop happened inside of the selected text. + if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) { + cm.state.draggingText(e) + // Ensure the editor is re-focused + setTimeout(function () { return cm.display.input.focus(); }, 20) + return + } + try { + var text$1 = e.dataTransfer.getData("Text") + if (text$1) { + var selected + if (cm.state.draggingText && !cm.state.draggingText.copy) + { selected = cm.listSelections() } + setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)) + if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1) + { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag") } } + cm.replaceSelection(text$1, "around", "paste") + cm.display.input.focus() } } - var result = skipAtomic(doc, Pos(line, ch), pos, origDir, true); - if (!cmp(pos, result)) result.hitSide = true; - return result; + catch(e){} + } +} + +function onDragStart(cm, e) { + if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return } + if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return } + + e.dataTransfer.setData("Text", cm.getSelection()) + e.dataTransfer.effectAllowed = "copyMove" + + // Use dummy image instead of default browsers image. + // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. + if (e.dataTransfer.setDragImage && !safari) { + var img = elt("img", null, null, "position: fixed; left: 0; top: 0;") + img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" + if (presto) { + img.width = img.height = 1 + cm.display.wrapper.appendChild(img) + // Force a relayout, or Opera won't use our image for some obscure reason + img._top = img.offsetTop + } + e.dataTransfer.setDragImage(img, 0, 0) + if (presto) { img.parentNode.removeChild(img) } + } +} + +function onDragOver(cm, e) { + var pos = posFromMouse(cm, e) + if (!pos) { return } + var frag = document.createDocumentFragment() + drawSelectionCursor(cm, pos, frag) + if (!cm.display.dragCursor) { + cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors") + cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv) + } + removeChildrenAndAdd(cm.display.dragCursor, frag) +} + +function clearDragCursor(cm) { + if (cm.display.dragCursor) { + cm.display.lineSpace.removeChild(cm.display.dragCursor) + cm.display.dragCursor = null + } +} + +// These must be handled carefully, because naively registering a +// handler for each editor will cause the editors to never be +// garbage collected. + +function forEachCodeMirror(f) { + if (!document.body.getElementsByClassName) { return } + var byClass = document.body.getElementsByClassName("CodeMirror") + for (var i = 0; i < byClass.length; i++) { + var cm = byClass[i].CodeMirror + if (cm) { f(cm) } + } +} + +var globalsRegistered = false +function ensureGlobalHandlers() { + if (globalsRegistered) { return } + registerGlobalHandlers() + globalsRegistered = true +} +function registerGlobalHandlers() { + // When the window resizes, we need to refresh active editors. + var resizeTimer + on(window, "resize", function () { + if (resizeTimer == null) { resizeTimer = setTimeout(function () { + resizeTimer = null + forEachCodeMirror(onResize) + }, 100) } + }) + // When the window loses focus, we want to show the editor as blurred + on(window, "blur", function () { return forEachCodeMirror(onBlur); }) +} +// Called when the window resizes +function onResize(cm) { + var d = cm.display + if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth) + { return } + // Might be a text scaling operation, clear size caches. + d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null + d.scrollbarsClipped = false + cm.setSize() +} + +var keyNames = { + 3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", + 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", + 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", + 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", + 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete", + 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", + 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete", + 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert" +} + +// Number keys +for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i) } +// Alphabetic keys +for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1) } +// Function keys +for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2 } + +var keyMap = {} + +keyMap.basic = { + "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", + "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", + "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", + "Tab": "defaultTab", "Shift-Tab": "indentAuto", + "Enter": "newlineAndIndent", "Insert": "toggleOverwrite", + "Esc": "singleSelection" +} +// Note that the save and find-related commands aren't defined by +// default. User code or addons can define them. Unknown commands +// are simply ignored. +keyMap.pcDefault = { + "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", + "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown", + "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", + "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", + "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", + "Ctrl-[": "indentLess", "Ctrl-]": "indentMore", + "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection", + fallthrough: "basic" +} +// Very basic readline/emacs-style bindings, which are standard on Mac. +keyMap.emacsy = { + "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", + "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", + "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", + "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars", + "Ctrl-O": "openLine" +} +keyMap.macDefault = { + "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", + "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", + "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore", + "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", + "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", + "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight", + "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd", + fallthrough: ["basic", "emacsy"] +} +keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault + +// KEYMAP DISPATCH + +function normalizeKeyName(name) { + var parts = name.split(/-(?!$)/) + name = parts[parts.length - 1] + var alt, ctrl, shift, cmd + for (var i = 0; i < parts.length - 1; i++) { + var mod = parts[i] + if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true } + else if (/^a(lt)?$/i.test(mod)) { alt = true } + else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true } + else if (/^s(hift)?$/i.test(mod)) { shift = true } + else { throw new Error("Unrecognized modifier name: " + mod) } + } + if (alt) { name = "Alt-" + name } + if (ctrl) { name = "Ctrl-" + name } + if (cmd) { name = "Cmd-" + name } + if (shift) { name = "Shift-" + name } + return name +} + +// This is a kludge to keep keymaps mostly working as raw objects +// (backwards compatibility) while at the same time support features +// like normalization and multi-stroke key bindings. It compiles a +// new normalized keymap, and then updates the old object to reflect +// this. +function normalizeKeyMap(keymap) { + var copy = {} + for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) { + var value = keymap[keyname] + if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue } + if (value == "...") { delete keymap[keyname]; continue } + + var keys = map(keyname.split(" "), normalizeKeyName) + for (var i = 0; i < keys.length; i++) { + var val = (void 0), name = (void 0) + if (i == keys.length - 1) { + name = keys.join(" ") + val = value + } else { + name = keys.slice(0, i + 1).join(" ") + val = "..." + } + var prev = copy[name] + if (!prev) { copy[name] = val } + else if (prev != val) { throw new Error("Inconsistent bindings for " + name) } + } + delete keymap[keyname] + } } + for (var prop in copy) { keymap[prop] = copy[prop] } + return keymap +} + +function lookupKey(key, map, handle, context) { + map = getKeyMap(map) + var found = map.call ? map.call(key, context) : map[key] + if (found === false) { return "nothing" } + if (found === "...") { return "multi" } + if (found != null && handle(found)) { return "handled" } + + if (map.fallthrough) { + if (Object.prototype.toString.call(map.fallthrough) != "[object Array]") + { return lookupKey(key, map.fallthrough, handle, context) } + for (var i = 0; i < map.fallthrough.length; i++) { + var result = lookupKey(key, map.fallthrough[i], handle, context) + if (result) { return result } + } + } +} + +// Modifier key presses don't count as 'real' key presses for the +// purpose of keymap fallthrough. +function isModifierKey(value) { + var name = typeof value == "string" ? value : keyNames[value.keyCode] + return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod" +} + +// Look up the name of a key as indicated by an event object. +function keyName(event, noShift) { + if (presto && event.keyCode == 34 && event["char"]) { return false } + var base = keyNames[event.keyCode], name = base + if (name == null || event.altGraphKey) { return false } + if (event.altKey && base != "Alt") { name = "Alt-" + name } + if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name } + if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") { name = "Cmd-" + name } + if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name } + return name +} + +function getKeyMap(val) { + return typeof val == "string" ? keyMap[val] : val +} + +// Helper for deleting text near the selection(s), used to implement +// backspace, delete, and similar functionality. +function deleteNearSelection(cm, compute) { + var ranges = cm.doc.sel.ranges, kill = [] + // Build up a set of ranges to kill first, merging overlapping + // ranges. + for (var i = 0; i < ranges.length; i++) { + var toKill = compute(ranges[i]) + while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) { + var replaced = kill.pop() + if (cmp(replaced.from, toKill.from) < 0) { + toKill.from = replaced.from + break + } + } + kill.push(toKill) + } + // Next, remove those actual ranges. + runInOp(cm, function () { + for (var i = kill.length - 1; i >= 0; i--) + { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete") } + ensureCursorVisible(cm) + }) +} + +// Commands are parameter-less actions that can be performed on an +// editor, mostly used for keybindings. +var commands = { + selectAll: selectAll, + singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); }, + killLine: function (cm) { return deleteNearSelection(cm, function (range) { + if (range.empty()) { + var len = getLine(cm.doc, range.head.line).text.length + if (range.head.ch == len && range.head.line < cm.lastLine()) + { return {from: range.head, to: Pos(range.head.line + 1, 0)} } + else + { return {from: range.head, to: Pos(range.head.line, len)} } + } else { + return {from: range.from(), to: range.to()} + } + }); }, + deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({ + from: Pos(range.from().line, 0), + to: clipPos(cm.doc, Pos(range.to().line + 1, 0)) + }); }); }, + delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({ + from: Pos(range.from().line, 0), to: range.from() + }); }); }, + delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { + var top = cm.charCoords(range.head, "div").top + 5 + var leftPos = cm.coordsChar({left: 0, top: top}, "div") + return {from: leftPos, to: range.from()} + }); }, + delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) { + var top = cm.charCoords(range.head, "div").top + 5 + var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div") + return {from: range.from(), to: rightPos } + }); }, + undo: function (cm) { return cm.undo(); }, + redo: function (cm) { return cm.redo(); }, + undoSelection: function (cm) { return cm.undoSelection(); }, + redoSelection: function (cm) { return cm.redoSelection(); }, + goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); }, + goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); }, + goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); }, + {origin: "+move", bias: 1} + ); }, + goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); }, + {origin: "+move", bias: 1} + ); }, + goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); }, + {origin: "+move", bias: -1} + ); }, + goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) { + var top = cm.charCoords(range.head, "div").top + 5 + return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div") + }, sel_move); }, + goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) { + var top = cm.charCoords(range.head, "div").top + 5 + return cm.coordsChar({left: 0, top: top}, "div") + }, sel_move); }, + goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) { + var top = cm.charCoords(range.head, "div").top + 5 + var pos = cm.coordsChar({left: 0, top: top}, "div") + if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) } + return pos + }, sel_move); }, + goLineUp: function (cm) { return cm.moveV(-1, "line"); }, + goLineDown: function (cm) { return cm.moveV(1, "line"); }, + goPageUp: function (cm) { return cm.moveV(-1, "page"); }, + goPageDown: function (cm) { return cm.moveV(1, "page"); }, + goCharLeft: function (cm) { return cm.moveH(-1, "char"); }, + goCharRight: function (cm) { return cm.moveH(1, "char"); }, + goColumnLeft: function (cm) { return cm.moveH(-1, "column"); }, + goColumnRight: function (cm) { return cm.moveH(1, "column"); }, + goWordLeft: function (cm) { return cm.moveH(-1, "word"); }, + goGroupRight: function (cm) { return cm.moveH(1, "group"); }, + goGroupLeft: function (cm) { return cm.moveH(-1, "group"); }, + goWordRight: function (cm) { return cm.moveH(1, "word"); }, + delCharBefore: function (cm) { return cm.deleteH(-1, "char"); }, + delCharAfter: function (cm) { return cm.deleteH(1, "char"); }, + delWordBefore: function (cm) { return cm.deleteH(-1, "word"); }, + delWordAfter: function (cm) { return cm.deleteH(1, "word"); }, + delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); }, + delGroupAfter: function (cm) { return cm.deleteH(1, "group"); }, + indentAuto: function (cm) { return cm.indentSelection("smart"); }, + indentMore: function (cm) { return cm.indentSelection("add"); }, + indentLess: function (cm) { return cm.indentSelection("subtract"); }, + insertTab: function (cm) { return cm.replaceSelection("\t"); }, + insertSoftTab: function (cm) { + var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize + for (var i = 0; i < ranges.length; i++) { + var pos = ranges[i].from() + var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize) + spaces.push(spaceStr(tabSize - col % tabSize)) + } + cm.replaceSelections(spaces) + }, + defaultTab: function (cm) { + if (cm.somethingSelected()) { cm.indentSelection("add") } + else { cm.execCommand("insertTab") } + }, + // Swap the two chars left and right of each selection's head. + // Move cursor behind the two swapped characters afterwards. + // + // Doesn't consider line feeds a character. + // Doesn't scan more than one line above to find a character. + // Doesn't do anything on an empty line. + // Doesn't do anything with non-empty selections. + transposeChars: function (cm) { return runInOp(cm, function () { + var ranges = cm.listSelections(), newSel = [] + for (var i = 0; i < ranges.length; i++) { + if (!ranges[i].empty()) { continue } + var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text + if (line) { + if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1) } + if (cur.ch > 0) { + cur = new Pos(cur.line, cur.ch + 1) + cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2), + Pos(cur.line, cur.ch - 2), cur, "+transpose") + } else if (cur.line > cm.doc.first) { + var prev = getLine(cm.doc, cur.line - 1).text + if (prev) { + cur = new Pos(cur.line, 1) + cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() + + prev.charAt(prev.length - 1), + Pos(cur.line - 1, prev.length - 1), cur, "+transpose") + } + } + } + newSel.push(new Range(cur, cur)) + } + cm.setSelections(newSel) + }); }, + newlineAndIndent: function (cm) { return runInOp(cm, function () { + var sels = cm.listSelections() + for (var i = sels.length - 1; i >= 0; i--) + { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input") } + sels = cm.listSelections() + for (var i$1 = 0; i$1 < sels.length; i$1++) + { cm.indentLine(sels[i$1].from().line, null, true) } + ensureCursorVisible(cm) + }); }, + openLine: function (cm) { return cm.replaceSelection("\n", "start"); }, + toggleOverwrite: function (cm) { return cm.toggleOverwrite(); } +} + + +function lineStart(cm, lineN) { + var line = getLine(cm.doc, lineN) + var visual = visualLine(line) + if (visual != line) { lineN = lineNo(visual) } + var order = getOrder(visual) + var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual) + return Pos(lineN, ch) +} +function lineEnd(cm, lineN) { + var merged, line = getLine(cm.doc, lineN) + while (merged = collapsedSpanAtEnd(line)) { + line = merged.find(1, true).line + lineN = null + } + var order = getOrder(line) + var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line) + return Pos(lineN == null ? lineNo(line) : lineN, ch) +} +function lineStartSmart(cm, pos) { + var start = lineStart(cm, pos.line) + var line = getLine(cm.doc, start.line) + var order = getOrder(line) + if (!order || order[0].level == 0) { + var firstNonWS = Math.max(0, line.text.search(/\S/)) + var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch + return Pos(start.line, inWS ? 0 : firstNonWS) + } + return start +} + +// Run a handler that was bound to a key. +function doHandleBinding(cm, bound, dropShift) { + if (typeof bound == "string") { + bound = commands[bound] + if (!bound) { return false } + } + // Ensure previous input has been read, so that the handler sees a + // consistent view of the document + cm.display.input.ensurePolled() + var prevShift = cm.display.shift, done = false + try { + if (cm.isReadOnly()) { cm.state.suppressEdits = true } + if (dropShift) { cm.display.shift = false } + done = bound(cm) != Pass + } finally { + cm.display.shift = prevShift + cm.state.suppressEdits = false + } + return done +} + +function lookupKeyForEditor(cm, name, handle) { + for (var i = 0; i < cm.state.keyMaps.length; i++) { + var result = lookupKey(name, cm.state.keyMaps[i], handle, cm) + if (result) { return result } + } + return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm)) + || lookupKey(name, cm.options.keyMap, handle, cm) +} + +var stopSeq = new Delayed +function dispatchKey(cm, name, e, handle) { + var seq = cm.state.keySeq + if (seq) { + if (isModifierKey(name)) { return "handled" } + stopSeq.set(50, function () { + if (cm.state.keySeq == seq) { + cm.state.keySeq = null + cm.display.input.reset() + } + }) + name = seq + " " + name + } + var result = lookupKeyForEditor(cm, name, handle) + + if (result == "multi") + { cm.state.keySeq = name } + if (result == "handled") + { signalLater(cm, "keyHandled", cm, name, e) } + + if (result == "handled" || result == "multi") { + e_preventDefault(e) + restartBlink(cm) } - // For relative vertical movement. Dir may be -1 or 1. Unit can be - // "page" or "line". The resulting position will have a hitSide=true - // property if it reached the end of the document. - function findPosV(cm, pos, dir, unit) { - var doc = cm.doc, x = pos.left, y; - if (unit == "page") { - var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight); - y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display)); - } else if (unit == "line") { - y = dir > 0 ? pos.bottom + 3 : pos.top - 3; - } - for (;;) { - var target = coordsChar(cm, x, y); - if (!target.outside) break; - if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; } - y += dir * 5; - } - return target; + if (seq && !result && /\'$/.test(name)) { + e_preventDefault(e) + return true + } + return !!result +} + +// Handle a key from the keydown event. +function handleKeyBinding(cm, e) { + var name = keyName(e, true) + if (!name) { return false } + + if (e.shiftKey && !cm.state.keySeq) { + // First try to resolve full name (including 'Shift-'). Failing + // that, see if there is a cursor-motion command (starting with + // 'go') bound to the keyname without 'Shift-'. + return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); }) + || dispatchKey(cm, name, e, function (b) { + if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) + { return doHandleBinding(cm, b) } + }) + } else { + return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); }) + } +} + +// Handle a key from the keypress event +function handleCharBinding(cm, e, ch) { + return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); }) +} + +var lastStoppedKey = null +function onKeyDown(e) { + var cm = this + cm.curOp.focus = activeElt() + if (signalDOMEvent(cm, e)) { return } + // IE does strange things with escape. + if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false } + var code = e.keyCode + cm.display.shift = code == 16 || e.shiftKey + var handled = handleKeyBinding(cm, e) + if (presto) { + lastStoppedKey = handled ? code : null + // Opera has no cut event... we try to at least catch the key combo + if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) + { cm.replaceSelection("", null, "cut") } } - // EDITOR METHODS + // Turn mouse into crosshair when Alt is held on Mac. + if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className)) + { showCrossHair(cm) } +} - // The publicly visible API. Note that methodOp(f) means - // 'wrap f in an operation, performed on its `this` parameter'. +function showCrossHair(cm) { + var lineDiv = cm.display.lineDiv + addClass(lineDiv, "CodeMirror-crosshair") - // This is not the complete set of editor methods. Most of the - // methods defined on the Doc type are also injected into - // CodeMirror.prototype, for backwards compatibility and - // convenience. + function up(e) { + if (e.keyCode == 18 || !e.altKey) { + rmClass(lineDiv, "CodeMirror-crosshair") + off(document, "keyup", up) + off(document, "mouseover", up) + } + } + on(document, "keyup", up) + on(document, "mouseover", up) +} + +function onKeyUp(e) { + if (e.keyCode == 16) { this.doc.sel.shift = false } + signalDOMEvent(this, e) +} + +function onKeyPress(e) { + var cm = this + if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return } + var keyCode = e.keyCode, charCode = e.charCode + if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return} + if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return } + var ch = String.fromCharCode(charCode == null ? keyCode : charCode) + // Some browsers fire keypress events for backspace + if (ch == "\x08") { return } + if (handleCharBinding(cm, e, ch)) { return } + cm.display.input.onKeyPress(e) +} + +// A mouse down can be a single click, double click, triple click, +// start of selection drag, start of text drag, new cursor +// (ctrl-click), rectangle drag (alt-drag), or xwin +// middle-click-paste. Or it might be a click on something we should +// not interfere with, such as a scrollbar or widget. +function onMouseDown(e) { + var cm = this, display = cm.display + if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return } + display.input.ensurePolled() + display.shift = e.shiftKey + + if (eventInWidget(display, e)) { + if (!webkit) { + // Briefly turn off draggability, to allow widgets to do + // normal dragging things. + display.scroller.draggable = false + setTimeout(function () { return display.scroller.draggable = true; }, 100) + } + return + } + if (clickInGutter(cm, e)) { return } + var start = posFromMouse(cm, e) + window.focus() + + switch (e_button(e)) { + case 1: + // #3261: make sure, that we're not starting a second selection + if (cm.state.selectingText) + { cm.state.selectingText(e) } + else if (start) + { leftButtonDown(cm, e, start) } + else if (e_target(e) == display.scroller) + { e_preventDefault(e) } + break + case 2: + if (webkit) { cm.state.lastMiddleDown = +new Date } + if (start) { extendSelection(cm.doc, start) } + setTimeout(function () { return display.input.focus(); }, 20) + e_preventDefault(e) + break + case 3: + if (captureRightClick) { onContextMenu(cm, e) } + else { delayBlurEvent(cm) } + break + } +} + +var lastClick; +var lastDoubleClick; +function leftButtonDown(cm, e, start) { + if (ie) { setTimeout(bind(ensureFocus, cm), 0) } + else { cm.curOp.focus = activeElt() } + + var now = +new Date, type + if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) { + type = "triple" + } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) { + type = "double" + lastDoubleClick = {time: now, pos: start} + } else { + type = "single" + lastClick = {time: now, pos: start} + } + + var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained + if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() && + type == "single" && (contained = sel.contains(start)) > -1 && + (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) && + (cmp(contained.to(), start) > 0 || start.xRel < 0)) + { leftButtonStartDrag(cm, e, start, modifier) } + else + { leftButtonSelect(cm, e, start, type, modifier) } +} + +// Start a text drag. When it ends, see if any dragging actually +// happen, and treat as a click if it didn't. +function leftButtonStartDrag(cm, e, start, modifier) { + var display = cm.display, startTime = +new Date + var dragEnd = operation(cm, function (e2) { + if (webkit) { display.scroller.draggable = false } + cm.state.draggingText = false + off(document, "mouseup", dragEnd) + off(display.scroller, "drop", dragEnd) + if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { + e_preventDefault(e2) + if (!modifier && +new Date - 200 < startTime) + { extendSelection(cm.doc, start) } + // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081) + if (webkit || ie && ie_version == 9) + { setTimeout(function () {document.body.focus(); display.input.focus()}, 20) } + else + { display.input.focus() } + } + }) + // Let the drag handler handle this. + if (webkit) { display.scroller.draggable = true } + cm.state.draggingText = dragEnd + dragEnd.copy = mac ? e.altKey : e.ctrlKey + // IE's approach to draggable + if (display.scroller.dragDrop) { display.scroller.dragDrop() } + on(document, "mouseup", dragEnd) + on(display.scroller, "drop", dragEnd) +} + +// Normal selection, as opposed to text dragging. +function leftButtonSelect(cm, e, start, type, addNew) { + var display = cm.display, doc = cm.doc + e_preventDefault(e) + + var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges + if (addNew && !e.shiftKey) { + ourIndex = doc.sel.contains(start) + if (ourIndex > -1) + { ourRange = ranges[ourIndex] } + else + { ourRange = new Range(start, start) } + } else { + ourRange = doc.sel.primary() + ourIndex = doc.sel.primIndex + } + + if (chromeOS ? e.shiftKey && e.metaKey : e.altKey) { + type = "rect" + if (!addNew) { ourRange = new Range(start, start) } + start = posFromMouse(cm, e, true, true) + ourIndex = -1 + } else if (type == "double") { + var word = cm.findWordAt(start) + if (cm.display.shift || doc.extend) + { ourRange = extendRange(doc, ourRange, word.anchor, word.head) } + else + { ourRange = word } + } else if (type == "triple") { + var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0))) + if (cm.display.shift || doc.extend) + { ourRange = extendRange(doc, ourRange, line.anchor, line.head) } + else + { ourRange = line } + } else { + ourRange = extendRange(doc, ourRange, start) + } + + if (!addNew) { + ourIndex = 0 + setSelection(doc, new Selection([ourRange], 0), sel_mouse) + startSel = doc.sel + } else if (ourIndex == -1) { + ourIndex = ranges.length + setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex), + {scroll: false, origin: "*mouse"}) + } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) { + setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0), + {scroll: false, origin: "*mouse"}) + startSel = doc.sel + } else { + replaceOneSelection(doc, ourIndex, ourRange, sel_mouse) + } + + var lastPos = start + function extendTo(pos) { + if (cmp(lastPos, pos) == 0) { return } + lastPos = pos + + if (type == "rect") { + var ranges = [], tabSize = cm.options.tabSize + var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize) + var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize) + var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol) + for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); + line <= end; line++) { + var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize) + if (left == right) + { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))) } + else if (text.length > leftPos) + { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))) } + } + if (!ranges.length) { ranges.push(new Range(start, start)) } + setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), + {origin: "*mouse", scroll: false}) + cm.scrollIntoView(pos) + } else { + var oldRange = ourRange + var anchor = oldRange.anchor, head = pos + if (type != "single") { + var range + if (type == "double") + { range = cm.findWordAt(pos) } + else + { range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0))) } + if (cmp(range.anchor, anchor) > 0) { + head = range.head + anchor = minPos(oldRange.from(), range.anchor) + } else { + head = range.anchor + anchor = maxPos(oldRange.to(), range.head) + } + } + var ranges$1 = startSel.ranges.slice(0) + ranges$1[ourIndex] = new Range(clipPos(doc, anchor), head) + setSelection(doc, normalizeSelection(ranges$1, ourIndex), sel_mouse) + } + } + + var editorSize = display.wrapper.getBoundingClientRect() + // Used to ensure timeout re-tries don't fire when another extend + // happened in the meantime (clearTimeout isn't reliable -- at + // least on Chrome, the timeouts still happen even when cleared, + // if the clear happens after their scheduled firing time). + var counter = 0 + + function extend(e) { + var curCount = ++counter + var cur = posFromMouse(cm, e, true, type == "rect") + if (!cur) { return } + if (cmp(cur, lastPos) != 0) { + cm.curOp.focus = activeElt() + extendTo(cur) + var visible = visibleLines(display, doc) + if (cur.line >= visible.to || cur.line < visible.from) + { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e) }}), 150) } + } else { + var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0 + if (outside) { setTimeout(operation(cm, function () { + if (counter != curCount) { return } + display.scroller.scrollTop += outside + extend(e) + }), 50) } + } + } + + function done(e) { + cm.state.selectingText = false + counter = Infinity + e_preventDefault(e) + display.input.focus() + off(document, "mousemove", move) + off(document, "mouseup", up) + doc.history.lastSelOrigin = null + } + + var move = operation(cm, function (e) { + if (!e_button(e)) { done(e) } + else { extend(e) } + }) + var up = operation(cm, done) + cm.state.selectingText = up + on(document, "mousemove", move) + on(document, "mouseup", up) +} + + +// Determines whether an event happened in the gutter, and fires the +// handlers for the corresponding event. +function gutterEvent(cm, e, type, prevent) { + var mX, mY + try { mX = e.clientX; mY = e.clientY } + catch(e) { return false } + if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false } + if (prevent) { e_preventDefault(e) } + + var display = cm.display + var lineBox = display.lineDiv.getBoundingClientRect() + + if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) } + mY -= lineBox.top - display.viewOffset + + for (var i = 0; i < cm.options.gutters.length; ++i) { + var g = display.gutters.childNodes[i] + if (g && g.getBoundingClientRect().right >= mX) { + var line = lineAtHeight(cm.doc, mY) + var gutter = cm.options.gutters[i] + signal(cm, type, cm, line, gutter, e) + return e_defaultPrevented(e) + } + } +} + +function clickInGutter(cm, e) { + return gutterEvent(cm, e, "gutterClick", true) +} + +// CONTEXT MENU HANDLING + +// To make the context menu work, we need to briefly unhide the +// textarea (making it as unobtrusive as possible) to let the +// right-click take effect on it. +function onContextMenu(cm, e) { + if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return } + if (signalDOMEvent(cm, e, "contextmenu")) { return } + cm.display.input.onContextMenu(e) +} + +function contextMenuInGutter(cm, e) { + if (!hasHandler(cm, "gutterContextMenu")) { return false } + return gutterEvent(cm, e, "gutterContextMenu", false) +} + +function themeChanged(cm) { + cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + + cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-") + clearCaches(cm) +} + +var Init = {toString: function(){return "CodeMirror.Init"}} + +var defaults = {} +var optionHandlers = {} + +function defineOptions(CodeMirror) { + var optionHandlers = CodeMirror.optionHandlers + + function option(name, deflt, handle, notOnInit) { + CodeMirror.defaults[name] = deflt + if (handle) { optionHandlers[name] = + notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old) }} : handle } + } + + CodeMirror.defineOption = option + + // Passed to option handlers when there is no old value. + CodeMirror.Init = Init + + // These two are, on init, called from the constructor because they + // have to be initialized before the editor can start at all. + option("value", "", function (cm, val) { return cm.setValue(val); }, true) + option("mode", null, function (cm, val) { + cm.doc.modeOption = val + loadMode(cm) + }, true) + + option("indentUnit", 2, loadMode, true) + option("indentWithTabs", false) + option("smartIndent", true) + option("tabSize", 4, function (cm) { + resetModeState(cm) + clearCaches(cm) + regChange(cm) + }, true) + option("lineSeparator", null, function (cm, val) { + cm.doc.lineSep = val + if (!val) { return } + var newBreaks = [], lineNo = cm.doc.first + cm.doc.iter(function (line) { + for (var pos = 0;;) { + var found = line.text.indexOf(val, pos) + if (found == -1) { break } + pos = found + val.length + newBreaks.push(Pos(lineNo, found)) + } + lineNo++ + }) + for (var i = newBreaks.length - 1; i >= 0; i--) + { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)) } + }) + option("specialChars", /[\u0000-\u001f\u007f\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function (cm, val, old) { + cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g") + if (old != Init) { cm.refresh() } + }) + option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true) + option("electricChars", true) + option("inputStyle", mobile ? "contenteditable" : "textarea", function () { + throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME + }, true) + option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true) + option("rtlMoveVisually", !windows) + option("wholeLineUpdateBefore", true) + + option("theme", "default", function (cm) { + themeChanged(cm) + guttersChanged(cm) + }, true) + option("keyMap", "default", function (cm, val, old) { + var next = getKeyMap(val) + var prev = old != Init && getKeyMap(old) + if (prev && prev.detach) { prev.detach(cm, next) } + if (next.attach) { next.attach(cm, prev || null) } + }) + option("extraKeys", null) + + option("lineWrapping", false, wrappingChanged, true) + option("gutters", [], function (cm) { + setGuttersForLineNumbers(cm.options) + guttersChanged(cm) + }, true) + option("fixedGutter", true, function (cm, val) { + cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0" + cm.refresh() + }, true) + option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true) + option("scrollbarStyle", "native", function (cm) { + initScrollbars(cm) + updateScrollbars(cm) + cm.display.scrollbars.setScrollTop(cm.doc.scrollTop) + cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft) + }, true) + option("lineNumbers", false, function (cm) { + setGuttersForLineNumbers(cm.options) + guttersChanged(cm) + }, true) + option("firstLineNumber", 1, guttersChanged, true) + option("lineNumberFormatter", function (integer) { return integer; }, guttersChanged, true) + option("showCursorWhenSelecting", false, updateSelection, true) + + option("resetSelectionOnContextMenu", true) + option("lineWiseCopyCut", true) + + option("readOnly", false, function (cm, val) { + if (val == "nocursor") { + onBlur(cm) + cm.display.input.blur() + cm.display.disabled = true + } else { + cm.display.disabled = false + } + cm.display.input.readOnlyChanged(val) + }) + option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset() }}, true) + option("dragDrop", true, dragDropChanged) + option("allowDropFileTypes", null) + + option("cursorBlinkRate", 530) + option("cursorScrollMargin", 0) + option("cursorHeight", 1, updateSelection, true) + option("singleCursorHeightPerLine", true, updateSelection, true) + option("workTime", 100) + option("workDelay", 100) + option("flattenSpans", true, resetModeState, true) + option("addModeClass", false, resetModeState, true) + option("pollInterval", 100) + option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; }) + option("historyEventDelay", 1250) + option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true) + option("maxHighlightLength", 10000, resetModeState, true) + option("moveInputWithCursor", true, function (cm, val) { + if (!val) { cm.display.input.resetPosition() } + }) + + option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; }) + option("autofocus", null) +} + +function guttersChanged(cm) { + updateGutters(cm) + regChange(cm) + setTimeout(function () { return alignHorizontally(cm); }, 20) +} + +function dragDropChanged(cm, value, old) { + var wasOn = old && old != Init + if (!value != !wasOn) { + var funcs = cm.display.dragFunctions + var toggle = value ? on : off + toggle(cm.display.scroller, "dragstart", funcs.start) + toggle(cm.display.scroller, "dragenter", funcs.enter) + toggle(cm.display.scroller, "dragover", funcs.over) + toggle(cm.display.scroller, "dragleave", funcs.leave) + toggle(cm.display.scroller, "drop", funcs.drop) + } +} + +function wrappingChanged(cm) { + if (cm.options.lineWrapping) { + addClass(cm.display.wrapper, "CodeMirror-wrap") + cm.display.sizer.style.minWidth = "" + cm.display.sizerWidth = null + } else { + rmClass(cm.display.wrapper, "CodeMirror-wrap") + findMaxLine(cm) + } + estimateLineHeights(cm) + regChange(cm) + clearCaches(cm) + setTimeout(function () { return updateScrollbars(cm); }, 100) +} + +// A CodeMirror instance represents an editor. This is the object +// that user code is usually dealing with. + +function CodeMirror(place, options) { + var this$1 = this; + + if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) } + + this.options = options = options ? copyObj(options) : {} + // Determine effective options based on given values and defaults. + copyObj(defaults, options, false) + setGuttersForLineNumbers(options) + + var doc = options.value + if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator) } + this.doc = doc + + var input = new CodeMirror.inputStyles[options.inputStyle](this) + var display = this.display = new Display(place, doc, input) + display.wrapper.CodeMirror = this + updateGutters(this) + themeChanged(this) + if (options.lineWrapping) + { this.display.wrapper.className += " CodeMirror-wrap" } + if (options.autofocus && !mobile) { display.input.focus() } + initScrollbars(this) + + this.state = { + keyMaps: [], // stores maps added by addKeyMap + overlays: [], // highlighting overlays, as added by addOverlay + modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info + overwrite: false, + delayingBlurEvent: false, + focused: false, + suppressEdits: false, // used to disable editing during key handlers when in readOnly mode + pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll + selectingText: false, + draggingText: false, + highlight: new Delayed(), // stores highlight worker timeout + keySeq: null, // Unfinished key sequence + specialChars: null + } + + // Override magic textarea content restore that IE sometimes does + // on our hidden textarea on reload + if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20) } + + registerEventHandlers(this) + ensureGlobalHandlers() + + startOperation(this) + this.curOp.forceUpdate = true + attachDoc(this, doc) + + if ((options.autofocus && !mobile) || this.hasFocus()) + { setTimeout(bind(onFocus, this), 20) } + else + { onBlur(this) } + + for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt)) + { optionHandlers[opt](this$1, options[opt], Init) } } + maybeUpdateLineNumberWidth(this) + if (options.finishInit) { options.finishInit(this) } + for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this$1) } + endOperation(this) + // Suppress optimizelegibility in Webkit, since it breaks text + // measuring on line wrapping boundaries. + if (webkit && options.lineWrapping && + getComputedStyle(display.lineDiv).textRendering == "optimizelegibility") + { display.lineDiv.style.textRendering = "auto" } +} + +// The default configuration options. +CodeMirror.defaults = defaults +// Functions to run when options are changed. +CodeMirror.optionHandlers = optionHandlers + +// Attach the necessary event handlers when initializing the editor +function registerEventHandlers(cm) { + var d = cm.display + on(d.scroller, "mousedown", operation(cm, onMouseDown)) + // Older IE's will not fire a second mousedown for a double click + if (ie && ie_version < 11) + { on(d.scroller, "dblclick", operation(cm, function (e) { + if (signalDOMEvent(cm, e)) { return } + var pos = posFromMouse(cm, e) + if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return } + e_preventDefault(e) + var word = cm.findWordAt(pos) + extendSelection(cm.doc, word.anchor, word.head) + })) } + else + { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }) } + // Some browsers fire contextmenu *after* opening the menu, at + // which point we can't mess with it anymore. Context menu is + // handled in onMouseDown for these browsers. + if (!captureRightClick) { on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); }) } + + // Used to suppress mouse event handling when a touch happens + var touchFinished, prevTouch = {end: 0} + function finishTouch() { + if (d.activeTouch) { + touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000) + prevTouch = d.activeTouch + prevTouch.end = +new Date + } + } + function isMouseLikeTouchEvent(e) { + if (e.touches.length != 1) { return false } + var touch = e.touches[0] + return touch.radiusX <= 1 && touch.radiusY <= 1 + } + function farAway(touch, other) { + if (other.left == null) { return true } + var dx = other.left - touch.left, dy = other.top - touch.top + return dx * dx + dy * dy > 20 * 20 + } + on(d.scroller, "touchstart", function (e) { + if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e)) { + d.input.ensurePolled() + clearTimeout(touchFinished) + var now = +new Date + d.activeTouch = {start: now, moved: false, + prev: now - prevTouch.end <= 300 ? prevTouch : null} + if (e.touches.length == 1) { + d.activeTouch.left = e.touches[0].pageX + d.activeTouch.top = e.touches[0].pageY + } + } + }) + on(d.scroller, "touchmove", function () { + if (d.activeTouch) { d.activeTouch.moved = true } + }) + on(d.scroller, "touchend", function (e) { + var touch = d.activeTouch + if (touch && !eventInWidget(d, e) && touch.left != null && + !touch.moved && new Date - touch.start < 300) { + var pos = cm.coordsChar(d.activeTouch, "page"), range + if (!touch.prev || farAway(touch, touch.prev)) // Single tap + { range = new Range(pos, pos) } + else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap + { range = cm.findWordAt(pos) } + else // Triple tap + { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) } + cm.setSelection(range.anchor, range.head) + cm.focus() + e_preventDefault(e) + } + finishTouch() + }) + on(d.scroller, "touchcancel", finishTouch) + + // Sync scrolling between fake scrollbars and real scrollable + // area, ensure viewport is updated when scrolling. + on(d.scroller, "scroll", function () { + if (d.scroller.clientHeight) { + setScrollTop(cm, d.scroller.scrollTop) + setScrollLeft(cm, d.scroller.scrollLeft, true) + signal(cm, "scroll", cm) + } + }) + + // Listen to wheel events in order to try and update the viewport on time. + on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); }) + on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); }) + + // Prevent wrapper from ever scrolling + on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }) + + d.dragFunctions = { + enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e) }}, + over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e) }}, + start: function (e) { return onDragStart(cm, e); }, + drop: operation(cm, onDrop), + leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm) }} + } + + var inp = d.input.getField() + on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); }) + on(inp, "keydown", operation(cm, onKeyDown)) + on(inp, "keypress", operation(cm, onKeyPress)) + on(inp, "focus", function (e) { return onFocus(cm, e); }) + on(inp, "blur", function (e) { return onBlur(cm, e); }) +} + +var initHooks = [] +CodeMirror.defineInitHook = function (f) { return initHooks.push(f); } + +// Indent the given line. The how parameter can be "smart", +// "add"/null, "subtract", or "prev". When aggressive is false +// (typically set to true for forced single-line indents), empty +// lines are not indented, and places where the mode returns Pass +// are left alone. +function indentLine(cm, n, how, aggressive) { + var doc = cm.doc, state + if (how == null) { how = "add" } + if (how == "smart") { + // Fall back to "prev" when the mode doesn't have an indentation + // method. + if (!doc.mode.indent) { how = "prev" } + else { state = getStateBefore(cm, n) } + } + + var tabSize = cm.options.tabSize + var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize) + if (line.stateAfter) { line.stateAfter = null } + var curSpaceString = line.text.match(/^\s*/)[0], indentation + if (!aggressive && !/\S/.test(line.text)) { + indentation = 0 + how = "not" + } else if (how == "smart") { + indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text) + if (indentation == Pass || indentation > 150) { + if (!aggressive) { return } + how = "prev" + } + } + if (how == "prev") { + if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize) } + else { indentation = 0 } + } else if (how == "add") { + indentation = curSpace + cm.options.indentUnit + } else if (how == "subtract") { + indentation = curSpace - cm.options.indentUnit + } else if (typeof how == "number") { + indentation = curSpace + how + } + indentation = Math.max(0, indentation) + + var indentString = "", pos = 0 + if (cm.options.indentWithTabs) + { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t"} } + if (pos < indentation) { indentString += spaceStr(indentation - pos) } + + if (indentString != curSpaceString) { + replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input") + line.stateAfter = null + return true + } else { + // Ensure that, if the cursor was in the whitespace at the start + // of the line, it is moved to the end of that space. + for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) { + var range = doc.sel.ranges[i$1] + if (range.head.line == n && range.head.ch < curSpaceString.length) { + var pos$1 = Pos(n, curSpaceString.length) + replaceOneSelection(doc, i$1, new Range(pos$1, pos$1)) + break + } + } + } +} + +// This will be set to a {lineWise: bool, text: [string]} object, so +// that, when pasting, we know what kind of selections the copied +// text was made out of. +var lastCopied = null + +function setLastCopied(newLastCopied) { + lastCopied = newLastCopied +} + +function applyTextInput(cm, inserted, deleted, sel, origin) { + var doc = cm.doc + cm.display.shift = false + if (!sel) { sel = doc.sel } + + var paste = cm.state.pasteIncoming || origin == "paste" + var textLines = splitLinesAuto(inserted), multiPaste = null + // When pasing N lines into N selections, insert one line per selection + if (paste && sel.ranges.length > 1) { + if (lastCopied && lastCopied.text.join("\n") == inserted) { + if (sel.ranges.length % lastCopied.text.length == 0) { + multiPaste = [] + for (var i = 0; i < lastCopied.text.length; i++) + { multiPaste.push(doc.splitLines(lastCopied.text[i])) } + } + } else if (textLines.length == sel.ranges.length) { + multiPaste = map(textLines, function (l) { return [l]; }) + } + } + + var updateInput + // Normal behavior is to insert the new text into every selection + for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) { + var range = sel.ranges[i$1] + var from = range.from(), to = range.to() + if (range.empty()) { + if (deleted && deleted > 0) // Handle deletion + { from = Pos(from.line, from.ch - deleted) } + else if (cm.state.overwrite && !paste) // Handle overwrite + { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)) } + else if (lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted) + { from = to = Pos(from.line, 0) } + } + updateInput = cm.curOp.updateInput + var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines, + origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")} + makeChange(cm.doc, changeEvent) + signalLater(cm, "inputRead", cm, changeEvent) + } + if (inserted && !paste) + { triggerElectric(cm, inserted) } + + ensureCursorVisible(cm) + cm.curOp.updateInput = updateInput + cm.curOp.typing = true + cm.state.pasteIncoming = cm.state.cutIncoming = false +} + +function handlePaste(e, cm) { + var pasted = e.clipboardData && e.clipboardData.getData("Text") + if (pasted) { + e.preventDefault() + if (!cm.isReadOnly() && !cm.options.disableInput) + { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }) } + return true + } +} + +function triggerElectric(cm, inserted) { + // When an 'electric' character is inserted, immediately trigger a reindent + if (!cm.options.electricChars || !cm.options.smartIndent) { return } + var sel = cm.doc.sel + + for (var i = sel.ranges.length - 1; i >= 0; i--) { + var range = sel.ranges[i] + if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue } + var mode = cm.getModeAt(range.head) + var indented = false + if (mode.electricChars) { + for (var j = 0; j < mode.electricChars.length; j++) + { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) { + indented = indentLine(cm, range.head.line, "smart") + break + } } + } else if (mode.electricInput) { + if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch))) + { indented = indentLine(cm, range.head.line, "smart") } + } + if (indented) { signalLater(cm, "electricInput", cm, range.head.line) } + } +} + +function copyableRanges(cm) { + var text = [], ranges = [] + for (var i = 0; i < cm.doc.sel.ranges.length; i++) { + var line = cm.doc.sel.ranges[i].head.line + var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)} + ranges.push(lineRange) + text.push(cm.getRange(lineRange.anchor, lineRange.head)) + } + return {text: text, ranges: ranges} +} + +function disableBrowserMagic(field, spellcheck) { + field.setAttribute("autocorrect", "off") + field.setAttribute("autocapitalize", "off") + field.setAttribute("spellcheck", !!spellcheck) +} + +function hiddenTextarea() { + var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none") + var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;") + // The textarea is kept positioned near the cursor to prevent the + // fact that it'll be scrolled into view on input from scrolling + // our fake cursor out of view. On webkit, when wrap=off, paste is + // very slow. So make the area wide instead. + if (webkit) { te.style.width = "1000px" } + else { te.setAttribute("wrap", "off") } + // If border: 0; -- iOS fails to open keyboard (issue #1287) + if (ios) { te.style.border = "1px solid black" } + disableBrowserMagic(te) + return div +} + +// The publicly visible API. Note that methodOp(f) means +// 'wrap f in an operation, performed on its `this` parameter'. + +// This is not the complete set of editor methods. Most of the +// methods defined on the Doc type are also injected into +// CodeMirror.prototype, for backwards compatibility and +// convenience. + +function addEditorMethods(CodeMirror) { + var optionHandlers = CodeMirror.optionHandlers + + var helpers = CodeMirror.helpers = {} CodeMirror.prototype = { constructor: CodeMirror, - focus: function(){window.focus(); this.display.input.focus();}, + focus: function(){window.focus(); this.display.input.focus()}, setOption: function(option, value) { - var options = this.options, old = options[option]; - if (options[option] == value && option != "mode") return; - options[option] = value; + var options = this.options, old = options[option] + if (options[option] == value && option != "mode") { return } + options[option] = value if (optionHandlers.hasOwnProperty(option)) - operation(this, optionHandlers[option])(this, value, old); + { operation(this, optionHandlers[option])(this, value, old) } }, - getOption: function(option) {return this.options[option];}, - getDoc: function() {return this.doc;}, + getOption: function(option) {return this.options[option]}, + getDoc: function() {return this.doc}, addKeyMap: function(map, bottom) { - this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map)); + this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map)) }, removeKeyMap: function(map) { - var maps = this.state.keyMaps; + var maps = this.state.keyMaps for (var i = 0; i < maps.length; ++i) - if (maps[i] == map || maps[i].name == map) { - maps.splice(i, 1); - return true; - } + { if (maps[i] == map || maps[i].name == map) { + maps.splice(i, 1) + return true + } } }, addOverlay: methodOp(function(spec, options) { - var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); - if (mode.startState) throw new Error("Overlays may not be stateful."); - this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque}); - this.state.modeGen++; - regChange(this); + var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec) + if (mode.startState) { throw new Error("Overlays may not be stateful.") } + insertSorted(this.state.overlays, + {mode: mode, modeSpec: spec, opaque: options && options.opaque, + priority: (options && options.priority) || 0}, + function (overlay) { return overlay.priority; }) + this.state.modeGen++ + regChange(this) }), removeOverlay: methodOp(function(spec) { - var overlays = this.state.overlays; + var this$1 = this; + + var overlays = this.state.overlays for (var i = 0; i < overlays.length; ++i) { - var cur = overlays[i].modeSpec; + var cur = overlays[i].modeSpec if (cur == spec || typeof spec == "string" && cur.name == spec) { - overlays.splice(i, 1); - this.state.modeGen++; - regChange(this); - return; + overlays.splice(i, 1) + this$1.state.modeGen++ + regChange(this$1) + return } } }), indentLine: methodOp(function(n, dir, aggressive) { if (typeof dir != "string" && typeof dir != "number") { - if (dir == null) dir = this.options.smartIndent ? "smart" : "prev"; - else dir = dir ? "add" : "subtract"; + if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev" } + else { dir = dir ? "add" : "subtract" } } - if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive); + if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive) } }), indentSelection: methodOp(function(how) { - var ranges = this.doc.sel.ranges, end = -1; + var this$1 = this; + + var ranges = this.doc.sel.ranges, end = -1 for (var i = 0; i < ranges.length; i++) { - var range = ranges[i]; + var range = ranges[i] if (!range.empty()) { - var from = range.from(), to = range.to(); - var start = Math.max(end, from.line); - end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1; + var from = range.from(), to = range.to() + var start = Math.max(end, from.line) + end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1 for (var j = start; j < end; ++j) - indentLine(this, j, how); - var newRanges = this.doc.sel.ranges; + { indentLine(this$1, j, how) } + var newRanges = this$1.doc.sel.ranges if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0) - replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); + { replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll) } } else if (range.head.line > end) { - indentLine(this, range.head.line, how, true); - end = range.head.line; - if (i == this.doc.sel.primIndex) ensureCursorVisible(this); + indentLine(this$1, range.head.line, how, true) + end = range.head.line + if (i == this$1.doc.sel.primIndex) { ensureCursorVisible(this$1) } } } }), @@ -7320,178 +10117,144 @@ CodeMirror.overlayMode = function(base, overlay, combine) { // Fetch the parser token for a given character. Useful for hacks // that want to inspect the mode state (say, for completion). getTokenAt: function(pos, precise) { - return takeToken(this, pos, precise); + return takeToken(this, pos, precise) }, getLineTokens: function(line, precise) { - return takeToken(this, Pos(line), precise, true); + return takeToken(this, Pos(line), precise, true) }, getTokenTypeAt: function(pos) { - pos = clipPos(this.doc, pos); - var styles = getLineStyles(this, getLine(this.doc, pos.line)); - var before = 0, after = (styles.length - 1) / 2, ch = pos.ch; - var type; - if (ch == 0) type = styles[2]; - else for (;;) { - var mid = (before + after) >> 1; - if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid; - else if (styles[mid * 2 + 1] < ch) before = mid + 1; - else { type = styles[mid * 2 + 2]; break; } - } - var cut = type ? type.indexOf("cm-overlay ") : -1; - return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1); + pos = clipPos(this.doc, pos) + var styles = getLineStyles(this, getLine(this.doc, pos.line)) + var before = 0, after = (styles.length - 1) / 2, ch = pos.ch + var type + if (ch == 0) { type = styles[2] } + else { for (;;) { + var mid = (before + after) >> 1 + if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid } + else if (styles[mid * 2 + 1] < ch) { before = mid + 1 } + else { type = styles[mid * 2 + 2]; break } + } } + var cut = type ? type.indexOf("overlay ") : -1 + return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1) }, getModeAt: function(pos) { - var mode = this.doc.mode; - if (!mode.innerMode) return mode; - return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode; + var mode = this.doc.mode + if (!mode.innerMode) { return mode } + return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode }, getHelper: function(pos, type) { - return this.getHelpers(pos, type)[0]; + return this.getHelpers(pos, type)[0] }, getHelpers: function(pos, type) { - var found = []; - if (!helpers.hasOwnProperty(type)) return found; - var help = helpers[type], mode = this.getModeAt(pos); + var this$1 = this; + + var found = [] + if (!helpers.hasOwnProperty(type)) { return found } + var help = helpers[type], mode = this.getModeAt(pos) if (typeof mode[type] == "string") { - if (help[mode[type]]) found.push(help[mode[type]]); + if (help[mode[type]]) { found.push(help[mode[type]]) } } else if (mode[type]) { for (var i = 0; i < mode[type].length; i++) { - var val = help[mode[type][i]]; - if (val) found.push(val); + var val = help[mode[type][i]] + if (val) { found.push(val) } } } else if (mode.helperType && help[mode.helperType]) { - found.push(help[mode.helperType]); + found.push(help[mode.helperType]) } else if (help[mode.name]) { - found.push(help[mode.name]); + found.push(help[mode.name]) } - for (var i = 0; i < help._global.length; i++) { - var cur = help._global[i]; - if (cur.pred(mode, this) && indexOf(found, cur.val) == -1) - found.push(cur.val); + for (var i$1 = 0; i$1 < help._global.length; i$1++) { + var cur = help._global[i$1] + if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1) + { found.push(cur.val) } } - return found; + return found }, getStateAfter: function(line, precise) { - var doc = this.doc; - line = clipLine(doc, line == null ? doc.first + doc.size - 1: line); - return getStateBefore(this, line + 1, precise); + var doc = this.doc + line = clipLine(doc, line == null ? doc.first + doc.size - 1: line) + return getStateBefore(this, line + 1, precise) }, cursorCoords: function(start, mode) { - var pos, range = this.doc.sel.primary(); - if (start == null) pos = range.head; - else if (typeof start == "object") pos = clipPos(this.doc, start); - else pos = start ? range.from() : range.to(); - return cursorCoords(this, pos, mode || "page"); + var pos, range = this.doc.sel.primary() + if (start == null) { pos = range.head } + else if (typeof start == "object") { pos = clipPos(this.doc, start) } + else { pos = start ? range.from() : range.to() } + return cursorCoords(this, pos, mode || "page") }, charCoords: function(pos, mode) { - return charCoords(this, clipPos(this.doc, pos), mode || "page"); + return charCoords(this, clipPos(this.doc, pos), mode || "page") }, coordsChar: function(coords, mode) { - coords = fromCoordSystem(this, coords, mode || "page"); - return coordsChar(this, coords.left, coords.top); + coords = fromCoordSystem(this, coords, mode || "page") + return coordsChar(this, coords.left, coords.top) }, lineAtHeight: function(height, mode) { - height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top; - return lineAtHeight(this.doc, height + this.display.viewOffset); + height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top + return lineAtHeight(this.doc, height + this.display.viewOffset) }, - heightAtLine: function(line, mode) { - var end = false, lineObj; + heightAtLine: function(line, mode, includeWidgets) { + var end = false, lineObj if (typeof line == "number") { - var last = this.doc.first + this.doc.size - 1; - if (line < this.doc.first) line = this.doc.first; - else if (line > last) { line = last; end = true; } - lineObj = getLine(this.doc, line); + var last = this.doc.first + this.doc.size - 1 + if (line < this.doc.first) { line = this.doc.first } + else if (line > last) { line = last; end = true } + lineObj = getLine(this.doc, line) } else { - lineObj = line; + lineObj = line } - return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top + - (end ? this.doc.height - heightAtLine(lineObj) : 0); + return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets).top + + (end ? this.doc.height - heightAtLine(lineObj) : 0) }, - defaultTextHeight: function() { return textHeight(this.display); }, - defaultCharWidth: function() { return charWidth(this.display); }, + defaultTextHeight: function() { return textHeight(this.display) }, + defaultCharWidth: function() { return charWidth(this.display) }, - setGutterMarker: methodOp(function(line, gutterID, value) { - return changeLine(this.doc, line, "gutter", function(line) { - var markers = line.gutterMarkers || (line.gutterMarkers = {}); - markers[gutterID] = value; - if (!value && isEmpty(markers)) line.gutterMarkers = null; - return true; - }); - }), - - clearGutter: methodOp(function(gutterID) { - var cm = this, doc = cm.doc, i = doc.first; - doc.iter(function(line) { - if (line.gutterMarkers && line.gutterMarkers[gutterID]) { - line.gutterMarkers[gutterID] = null; - regLineChange(cm, i, "gutter"); - if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null; - } - ++i; - }); - }), - - lineInfo: function(line) { - if (typeof line == "number") { - if (!isLine(this.doc, line)) return null; - var n = line; - line = getLine(this.doc, line); - if (!line) return null; - } else { - var n = lineNo(line); - if (n == null) return null; - } - return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, - textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, - widgets: line.widgets}; - }, - - getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};}, + getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}}, addWidget: function(pos, node, scroll, vert, horiz) { - var display = this.display; - pos = cursorCoords(this, clipPos(this.doc, pos)); - var top = pos.bottom, left = pos.left; - node.style.position = "absolute"; - node.setAttribute("cm-ignore-events", "true"); - this.display.input.setUneditable(node); - display.sizer.appendChild(node); + var display = this.display + pos = cursorCoords(this, clipPos(this.doc, pos)) + var top = pos.bottom, left = pos.left + node.style.position = "absolute" + node.setAttribute("cm-ignore-events", "true") + this.display.input.setUneditable(node) + display.sizer.appendChild(node) if (vert == "over") { - top = pos.top; + top = pos.top } else if (vert == "above" || vert == "near") { var vspace = Math.max(display.wrapper.clientHeight, this.doc.height), - hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth); + hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth) // Default to positioning above (if specified and possible); otherwise default to positioning below if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight) - top = pos.top - node.offsetHeight; + { top = pos.top - node.offsetHeight } else if (pos.bottom + node.offsetHeight <= vspace) - top = pos.bottom; + { top = pos.bottom } if (left + node.offsetWidth > hspace) - left = hspace - node.offsetWidth; + { left = hspace - node.offsetWidth } } - node.style.top = top + "px"; - node.style.left = node.style.right = ""; + node.style.top = top + "px" + node.style.left = node.style.right = "" if (horiz == "right") { - left = display.sizer.clientWidth - node.offsetWidth; - node.style.right = "0px"; + left = display.sizer.clientWidth - node.offsetWidth + node.style.right = "0px" } else { - if (horiz == "left") left = 0; - else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2; - node.style.left = left + "px"; + if (horiz == "left") { left = 0 } + else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2 } + node.style.left = left + "px" } if (scroll) - scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight); + { scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight) } }, triggerOnKeyDown: methodOp(onKeyDown), @@ -7500,3764 +10263,1254 @@ CodeMirror.overlayMode = function(base, overlay, combine) { execCommand: function(cmd) { if (commands.hasOwnProperty(cmd)) - return commands[cmd].call(null, this); + { return commands[cmd].call(null, this) } }, - triggerElectric: methodOp(function(text) { triggerElectric(this, text); }), + triggerElectric: methodOp(function(text) { triggerElectric(this, text) }), findPosH: function(from, amount, unit, visually) { - var dir = 1; - if (amount < 0) { dir = -1; amount = -amount; } - for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { - cur = findPosH(this.doc, cur, dir, unit, visually); - if (cur.hitSide) break; + var this$1 = this; + + var dir = 1 + if (amount < 0) { dir = -1; amount = -amount } + var cur = clipPos(this.doc, from) + for (var i = 0; i < amount; ++i) { + cur = findPosH(this$1.doc, cur, dir, unit, visually) + if (cur.hitSide) { break } } - return cur; + return cur }, moveH: methodOp(function(dir, unit) { - var cm = this; - cm.extendSelectionsBy(function(range) { - if (cm.display.shift || cm.doc.extend || range.empty()) - return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually); + var this$1 = this; + + this.extendSelectionsBy(function (range) { + if (this$1.display.shift || this$1.doc.extend || range.empty()) + { return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) } else - return dir < 0 ? range.from() : range.to(); - }, sel_move); + { return dir < 0 ? range.from() : range.to() } + }, sel_move) }), deleteH: methodOp(function(dir, unit) { - var sel = this.doc.sel, doc = this.doc; + var sel = this.doc.sel, doc = this.doc if (sel.somethingSelected()) - doc.replaceSelection("", null, "+delete"); + { doc.replaceSelection("", null, "+delete") } else - deleteNearSelection(this, function(range) { - var other = findPosH(doc, range.head, dir, unit, false); - return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}; - }); + { deleteNearSelection(this, function (range) { + var other = findPosH(doc, range.head, dir, unit, false) + return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other} + }) } }), findPosV: function(from, amount, unit, goalColumn) { - var dir = 1, x = goalColumn; - if (amount < 0) { dir = -1; amount = -amount; } - for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { - var coords = cursorCoords(this, cur, "div"); - if (x == null) x = coords.left; - else coords.left = x; - cur = findPosV(this, coords, dir, unit); - if (cur.hitSide) break; + var this$1 = this; + + var dir = 1, x = goalColumn + if (amount < 0) { dir = -1; amount = -amount } + var cur = clipPos(this.doc, from) + for (var i = 0; i < amount; ++i) { + var coords = cursorCoords(this$1, cur, "div") + if (x == null) { x = coords.left } + else { coords.left = x } + cur = findPosV(this$1, coords, dir, unit) + if (cur.hitSide) { break } } - return cur; + return cur }, moveV: methodOp(function(dir, unit) { - var cm = this, doc = this.doc, goals = []; - var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected(); - doc.extendSelectionsBy(function(range) { + var this$1 = this; + + var doc = this.doc, goals = [] + var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected() + doc.extendSelectionsBy(function (range) { if (collapse) - return dir < 0 ? range.from() : range.to(); - var headPos = cursorCoords(cm, range.head, "div"); - if (range.goalColumn != null) headPos.left = range.goalColumn; - goals.push(headPos.left); - var pos = findPosV(cm, headPos, dir, unit); + { return dir < 0 ? range.from() : range.to() } + var headPos = cursorCoords(this$1, range.head, "div") + if (range.goalColumn != null) { headPos.left = range.goalColumn } + goals.push(headPos.left) + var pos = findPosV(this$1, headPos, dir, unit) if (unit == "page" && range == doc.sel.primary()) - addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top); - return pos; - }, sel_move); - if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++) - doc.sel.ranges[i].goalColumn = goals[i]; + { addToScrollPos(this$1, null, charCoords(this$1, pos, "div").top - headPos.top) } + return pos + }, sel_move) + if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++) + { doc.sel.ranges[i].goalColumn = goals[i] } } }), // Find the word at the given position (as returned by coordsChar). findWordAt: function(pos) { - var doc = this.doc, line = getLine(doc, pos.line).text; - var start = pos.ch, end = pos.ch; + var doc = this.doc, line = getLine(doc, pos.line).text + var start = pos.ch, end = pos.ch if (line) { - var helper = this.getHelper(pos, "wordChars"); - if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end; - var startChar = line.charAt(start); + var helper = this.getHelper(pos, "wordChars") + if ((pos.xRel < 0 || end == line.length) && start) { --start; } else { ++end } + var startChar = line.charAt(start) var check = isWordChar(startChar, helper) - ? function(ch) { return isWordChar(ch, helper); } - : /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);} - : function(ch) {return !/\s/.test(ch) && !isWordChar(ch);}; - while (start > 0 && check(line.charAt(start - 1))) --start; - while (end < line.length && check(line.charAt(end))) ++end; + ? function (ch) { return isWordChar(ch, helper); } + : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); } + : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); } + while (start > 0 && check(line.charAt(start - 1))) { --start } + while (end < line.length && check(line.charAt(end))) { ++end } } - return new Range(Pos(pos.line, start), Pos(pos.line, end)); + return new Range(Pos(pos.line, start), Pos(pos.line, end)) }, toggleOverwrite: function(value) { - if (value != null && value == this.state.overwrite) return; + if (value != null && value == this.state.overwrite) { return } if (this.state.overwrite = !this.state.overwrite) - addClass(this.display.cursorDiv, "CodeMirror-overwrite"); + { addClass(this.display.cursorDiv, "CodeMirror-overwrite") } else - rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); + { rmClass(this.display.cursorDiv, "CodeMirror-overwrite") } - signal(this, "overwriteToggle", this, this.state.overwrite); + signal(this, "overwriteToggle", this, this.state.overwrite) }, - hasFocus: function() { return this.display.input.getField() == activeElt(); }, - isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit); }, + hasFocus: function() { return this.display.input.getField() == activeElt() }, + isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) }, scrollTo: methodOp(function(x, y) { - if (x != null || y != null) resolveScrollToPos(this); - if (x != null) this.curOp.scrollLeft = x; - if (y != null) this.curOp.scrollTop = y; + if (x != null || y != null) { resolveScrollToPos(this) } + if (x != null) { this.curOp.scrollLeft = x } + if (y != null) { this.curOp.scrollTop = y } }), getScrollInfo: function() { - var scroller = this.display.scroller; + var scroller = this.display.scroller return {left: scroller.scrollLeft, top: scroller.scrollTop, height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight, width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth, - clientHeight: displayHeight(this), clientWidth: displayWidth(this)}; + clientHeight: displayHeight(this), clientWidth: displayWidth(this)} }, scrollIntoView: methodOp(function(range, margin) { if (range == null) { - range = {from: this.doc.sel.primary().head, to: null}; - if (margin == null) margin = this.options.cursorScrollMargin; + range = {from: this.doc.sel.primary().head, to: null} + if (margin == null) { margin = this.options.cursorScrollMargin } } else if (typeof range == "number") { - range = {from: Pos(range, 0), to: null}; + range = {from: Pos(range, 0), to: null} } else if (range.from == null) { - range = {from: range, to: null}; + range = {from: range, to: null} } - if (!range.to) range.to = range.from; - range.margin = margin || 0; + if (!range.to) { range.to = range.from } + range.margin = margin || 0 if (range.from.line != null) { - resolveScrollToPos(this); - this.curOp.scrollToPos = range; + resolveScrollToPos(this) + this.curOp.scrollToPos = range } else { var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left), Math.min(range.from.top, range.to.top) - range.margin, Math.max(range.from.right, range.to.right), - Math.max(range.from.bottom, range.to.bottom) + range.margin); - this.scrollTo(sPos.scrollLeft, sPos.scrollTop); + Math.max(range.from.bottom, range.to.bottom) + range.margin) + this.scrollTo(sPos.scrollLeft, sPos.scrollTop) } }), setSize: methodOp(function(width, height) { - var cm = this; - function interpret(val) { - return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; - } - if (width != null) cm.display.wrapper.style.width = interpret(width); - if (height != null) cm.display.wrapper.style.height = interpret(height); - if (cm.options.lineWrapping) clearLineMeasurementCache(this); - var lineNo = cm.display.viewFrom; - cm.doc.iter(lineNo, cm.display.viewTo, function(line) { - if (line.widgets) for (var i = 0; i < line.widgets.length; i++) - if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, "widget"); break; } - ++lineNo; - }); - cm.curOp.forceUpdate = true; - signal(cm, "refresh", this); + var this$1 = this; + + var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; } + if (width != null) { this.display.wrapper.style.width = interpret(width) } + if (height != null) { this.display.wrapper.style.height = interpret(height) } + if (this.options.lineWrapping) { clearLineMeasurementCache(this) } + var lineNo = this.display.viewFrom + this.doc.iter(lineNo, this.display.viewTo, function (line) { + if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) + { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, "widget"); break } } } + ++lineNo + }) + this.curOp.forceUpdate = true + signal(this, "refresh", this) }), - operation: function(f){return runInOp(this, f);}, + operation: function(f){return runInOp(this, f)}, refresh: methodOp(function() { - var oldHeight = this.display.cachedTextHeight; - regChange(this); - this.curOp.forceUpdate = true; - clearCaches(this); - this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop); - updateGutterSpace(this); + var oldHeight = this.display.cachedTextHeight + regChange(this) + this.curOp.forceUpdate = true + clearCaches(this) + this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop) + updateGutterSpace(this) if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5) - estimateLineHeights(this); - signal(this, "refresh", this); + { estimateLineHeights(this) } + signal(this, "refresh", this) }), swapDoc: methodOp(function(doc) { - var old = this.doc; - old.cm = null; - attachDoc(this, doc); - clearCaches(this); - this.display.input.reset(); - this.scrollTo(doc.scrollLeft, doc.scrollTop); - this.curOp.forceScroll = true; - signalLater(this, "swapDoc", this, old); - return old; + var old = this.doc + old.cm = null + attachDoc(this, doc) + clearCaches(this) + this.display.input.reset() + this.scrollTo(doc.scrollLeft, doc.scrollTop) + this.curOp.forceScroll = true + signalLater(this, "swapDoc", this, old) + return old }), - getInputField: function(){return this.display.input.getField();}, - getWrapperElement: function(){return this.display.wrapper;}, - getScrollerElement: function(){return this.display.scroller;}, - getGutterElement: function(){return this.display.gutters;} - }; - eventMixin(CodeMirror); - - // OPTION DEFAULTS - - // The default configuration options. - var defaults = CodeMirror.defaults = {}; - // Functions to run when options are changed. - var optionHandlers = CodeMirror.optionHandlers = {}; - - function option(name, deflt, handle, notOnInit) { - CodeMirror.defaults[name] = deflt; - if (handle) optionHandlers[name] = - notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle; + getInputField: function(){return this.display.input.getField()}, + getWrapperElement: function(){return this.display.wrapper}, + getScrollerElement: function(){return this.display.scroller}, + getGutterElement: function(){return this.display.gutters} } + eventMixin(CodeMirror) - // Passed to option handlers when there is no old value. - var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}}; - - // These two are, on init, called from the constructor because they - // have to be initialized before the editor can start at all. - option("value", "", function(cm, val) { - cm.setValue(val); - }, true); - option("mode", null, function(cm, val) { - cm.doc.modeOption = val; - loadMode(cm); - }, true); - - option("indentUnit", 2, loadMode, true); - option("indentWithTabs", false); - option("smartIndent", true); - option("tabSize", 4, function(cm) { - resetModeState(cm); - clearCaches(cm); - regChange(cm); - }, true); - option("lineSeparator", null, function(cm, val) { - cm.doc.lineSep = val; - if (!val) return; - var newBreaks = [], lineNo = cm.doc.first; - cm.doc.iter(function(line) { - for (var pos = 0;;) { - var found = line.text.indexOf(val, pos); - if (found == -1) break; - pos = found + val.length; - newBreaks.push(Pos(lineNo, found)); - } - lineNo++; - }); - for (var i = newBreaks.length - 1; i >= 0; i--) - replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)) - }); - option("specialChars", /[\u0000-\u001f\u007f\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function(cm, val, old) { - cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g"); - if (old != CodeMirror.Init) cm.refresh(); - }); - option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true); - option("electricChars", true); - option("inputStyle", mobile ? "contenteditable" : "textarea", function() { - throw new Error("inputStyle can not (yet) be changed in a running editor"); // FIXME - }, true); - option("rtlMoveVisually", !windows); - option("wholeLineUpdateBefore", true); - - option("theme", "default", function(cm) { - themeChanged(cm); - guttersChanged(cm); - }, true); - option("keyMap", "default", function(cm, val, old) { - var next = getKeyMap(val); - var prev = old != CodeMirror.Init && getKeyMap(old); - if (prev && prev.detach) prev.detach(cm, next); - if (next.attach) next.attach(cm, prev || null); - }); - option("extraKeys", null); - - option("lineWrapping", false, wrappingChanged, true); - option("gutters", [], function(cm) { - setGuttersForLineNumbers(cm.options); - guttersChanged(cm); - }, true); - option("fixedGutter", true, function(cm, val) { - cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"; - cm.refresh(); - }, true); - option("coverGutterNextToScrollbar", false, function(cm) {updateScrollbars(cm);}, true); - option("scrollbarStyle", "native", function(cm) { - initScrollbars(cm); - updateScrollbars(cm); - cm.display.scrollbars.setScrollTop(cm.doc.scrollTop); - cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft); - }, true); - option("lineNumbers", false, function(cm) { - setGuttersForLineNumbers(cm.options); - guttersChanged(cm); - }, true); - option("firstLineNumber", 1, guttersChanged, true); - option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true); - option("showCursorWhenSelecting", false, updateSelection, true); - - option("resetSelectionOnContextMenu", true); - option("lineWiseCopyCut", true); - - option("readOnly", false, function(cm, val) { - if (val == "nocursor") { - onBlur(cm); - cm.display.input.blur(); - cm.display.disabled = true; - } else { - cm.display.disabled = false; - } - cm.display.input.readOnlyChanged(val) - }); - option("disableInput", false, function(cm, val) {if (!val) cm.display.input.reset();}, true); - option("dragDrop", true, dragDropChanged); - option("allowDropFileTypes", null); - - option("cursorBlinkRate", 530); - option("cursorScrollMargin", 0); - option("cursorHeight", 1, updateSelection, true); - option("singleCursorHeightPerLine", true, updateSelection, true); - option("workTime", 100); - option("workDelay", 100); - option("flattenSpans", true, resetModeState, true); - option("addModeClass", false, resetModeState, true); - option("pollInterval", 100); - option("undoDepth", 200, function(cm, val){cm.doc.history.undoDepth = val;}); - option("historyEventDelay", 1250); - option("viewportMargin", 10, function(cm){cm.refresh();}, true); - option("maxHighlightLength", 10000, resetModeState, true); - option("moveInputWithCursor", true, function(cm, val) { - if (!val) cm.display.input.resetPosition(); - }); - - option("tabindex", null, function(cm, val) { - cm.display.input.getField().tabIndex = val || ""; - }); - option("autofocus", null); - - // MODE DEFINITION AND QUERYING - - // Known modes, by name and by MIME - var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {}; - - // Extra arguments are stored as the mode's dependencies, which is - // used by (legacy) mechanisms like loadmode.js to automatically - // load a mode. (Preferred mechanism is the require/define calls.) - CodeMirror.defineMode = function(name, mode) { - if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name; - if (arguments.length > 2) - mode.dependencies = Array.prototype.slice.call(arguments, 2); - modes[name] = mode; - }; - - CodeMirror.defineMIME = function(mime, spec) { - mimeModes[mime] = spec; - }; - - // Given a MIME type, a {name, ...options} config object, or a name - // string, return a mode config object. - CodeMirror.resolveMode = function(spec) { - if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { - spec = mimeModes[spec]; - } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { - var found = mimeModes[spec.name]; - if (typeof found == "string") found = {name: found}; - spec = createObj(found, spec); - spec.name = found.name; - } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { - return CodeMirror.resolveMode("application/xml"); - } - if (typeof spec == "string") return {name: spec}; - else return spec || {name: "null"}; - }; - - // Given a mode spec (anything that resolveMode accepts), find and - // initialize an actual mode object. - CodeMirror.getMode = function(options, spec) { - var spec = CodeMirror.resolveMode(spec); - var mfactory = modes[spec.name]; - if (!mfactory) return CodeMirror.getMode(options, "text/plain"); - var modeObj = mfactory(options, spec); - if (modeExtensions.hasOwnProperty(spec.name)) { - var exts = modeExtensions[spec.name]; - for (var prop in exts) { - if (!exts.hasOwnProperty(prop)) continue; - if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop]; - modeObj[prop] = exts[prop]; - } - } - modeObj.name = spec.name; - if (spec.helperType) modeObj.helperType = spec.helperType; - if (spec.modeProps) for (var prop in spec.modeProps) - modeObj[prop] = spec.modeProps[prop]; - - return modeObj; - }; - - // Minimal default mode. - CodeMirror.defineMode("null", function() { - return {token: function(stream) {stream.skipToEnd();}}; - }); - CodeMirror.defineMIME("text/plain", "null"); - - // This can be used to attach properties to mode objects from - // outside the actual mode definition. - var modeExtensions = CodeMirror.modeExtensions = {}; - CodeMirror.extendMode = function(mode, properties) { - var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); - copyObj(properties, exts); - }; - - // EXTENSIONS - - CodeMirror.defineExtension = function(name, func) { - CodeMirror.prototype[name] = func; - }; - CodeMirror.defineDocExtension = function(name, func) { - Doc.prototype[name] = func; - }; - CodeMirror.defineOption = option; - - var initHooks = []; - CodeMirror.defineInitHook = function(f) {initHooks.push(f);}; - - var helpers = CodeMirror.helpers = {}; CodeMirror.registerHelper = function(type, name, value) { - if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []}; - helpers[type][name] = value; - }; + if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []} } + helpers[type][name] = value + } CodeMirror.registerGlobalHelper = function(type, name, predicate, value) { - CodeMirror.registerHelper(type, name, value); - helpers[type]._global.push({pred: predicate, val: value}); - }; + CodeMirror.registerHelper(type, name, value) + helpers[type]._global.push({pred: predicate, val: value}) + } +} - // MODE STATE HANDLING - - // Utility functions for working with state. Exported because nested - // modes need to do this for their inner modes. - - var copyState = CodeMirror.copyState = function(mode, state) { - if (state === true) return state; - if (mode.copyState) return mode.copyState(state); - var nstate = {}; - for (var n in state) { - var val = state[n]; - if (val instanceof Array) val = val.concat([]); - nstate[n] = val; - } - return nstate; - }; - - var startState = CodeMirror.startState = function(mode, a1, a2) { - return mode.startState ? mode.startState(a1, a2) : true; - }; - - // Given a mode and a state (for that mode), find the inner mode and - // state at the position that the state refers to. - CodeMirror.innerMode = function(mode, state) { - while (mode.innerMode) { - var info = mode.innerMode(state); - if (!info || info.mode == mode) break; - state = info.state; - mode = info.mode; - } - return info || {mode: mode, state: state}; - }; - - // STANDARD COMMANDS - - // Commands are parameter-less actions that can be performed on an - // editor, mostly used for keybindings. - var commands = CodeMirror.commands = { - selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);}, - singleSelection: function(cm) { - cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); - }, - killLine: function(cm) { - deleteNearSelection(cm, function(range) { - if (range.empty()) { - var len = getLine(cm.doc, range.head.line).text.length; - if (range.head.ch == len && range.head.line < cm.lastLine()) - return {from: range.head, to: Pos(range.head.line + 1, 0)}; - else - return {from: range.head, to: Pos(range.head.line, len)}; - } else { - return {from: range.from(), to: range.to()}; - } - }); - }, - deleteLine: function(cm) { - deleteNearSelection(cm, function(range) { - return {from: Pos(range.from().line, 0), - to: clipPos(cm.doc, Pos(range.to().line + 1, 0))}; - }); - }, - delLineLeft: function(cm) { - deleteNearSelection(cm, function(range) { - return {from: Pos(range.from().line, 0), to: range.from()}; - }); - }, - delWrappedLineLeft: function(cm) { - deleteNearSelection(cm, function(range) { - var top = cm.charCoords(range.head, "div").top + 5; - var leftPos = cm.coordsChar({left: 0, top: top}, "div"); - return {from: leftPos, to: range.from()}; - }); - }, - delWrappedLineRight: function(cm) { - deleteNearSelection(cm, function(range) { - var top = cm.charCoords(range.head, "div").top + 5; - var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div"); - return {from: range.from(), to: rightPos }; - }); - }, - undo: function(cm) {cm.undo();}, - redo: function(cm) {cm.redo();}, - undoSelection: function(cm) {cm.undoSelection();}, - redoSelection: function(cm) {cm.redoSelection();}, - goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));}, - goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));}, - goLineStart: function(cm) { - cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); }, - {origin: "+move", bias: 1}); - }, - goLineStartSmart: function(cm) { - cm.extendSelectionsBy(function(range) { - return lineStartSmart(cm, range.head); - }, {origin: "+move", bias: 1}); - }, - goLineEnd: function(cm) { - cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); }, - {origin: "+move", bias: -1}); - }, - goLineRight: function(cm) { - cm.extendSelectionsBy(function(range) { - var top = cm.charCoords(range.head, "div").top + 5; - return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div"); - }, sel_move); - }, - goLineLeft: function(cm) { - cm.extendSelectionsBy(function(range) { - var top = cm.charCoords(range.head, "div").top + 5; - return cm.coordsChar({left: 0, top: top}, "div"); - }, sel_move); - }, - goLineLeftSmart: function(cm) { - cm.extendSelectionsBy(function(range) { - var top = cm.charCoords(range.head, "div").top + 5; - var pos = cm.coordsChar({left: 0, top: top}, "div"); - if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head); - return pos; - }, sel_move); - }, - goLineUp: function(cm) {cm.moveV(-1, "line");}, - goLineDown: function(cm) {cm.moveV(1, "line");}, - goPageUp: function(cm) {cm.moveV(-1, "page");}, - goPageDown: function(cm) {cm.moveV(1, "page");}, - goCharLeft: function(cm) {cm.moveH(-1, "char");}, - goCharRight: function(cm) {cm.moveH(1, "char");}, - goColumnLeft: function(cm) {cm.moveH(-1, "column");}, - goColumnRight: function(cm) {cm.moveH(1, "column");}, - goWordLeft: function(cm) {cm.moveH(-1, "word");}, - goGroupRight: function(cm) {cm.moveH(1, "group");}, - goGroupLeft: function(cm) {cm.moveH(-1, "group");}, - goWordRight: function(cm) {cm.moveH(1, "word");}, - delCharBefore: function(cm) {cm.deleteH(-1, "char");}, - delCharAfter: function(cm) {cm.deleteH(1, "char");}, - delWordBefore: function(cm) {cm.deleteH(-1, "word");}, - delWordAfter: function(cm) {cm.deleteH(1, "word");}, - delGroupBefore: function(cm) {cm.deleteH(-1, "group");}, - delGroupAfter: function(cm) {cm.deleteH(1, "group");}, - indentAuto: function(cm) {cm.indentSelection("smart");}, - indentMore: function(cm) {cm.indentSelection("add");}, - indentLess: function(cm) {cm.indentSelection("subtract");}, - insertTab: function(cm) {cm.replaceSelection("\t");}, - insertSoftTab: function(cm) { - var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize; - for (var i = 0; i < ranges.length; i++) { - var pos = ranges[i].from(); - var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize); - spaces.push(spaceStr(tabSize - col % tabSize)); - } - cm.replaceSelections(spaces); - }, - defaultTab: function(cm) { - if (cm.somethingSelected()) cm.indentSelection("add"); - else cm.execCommand("insertTab"); - }, - transposeChars: function(cm) { - runInOp(cm, function() { - var ranges = cm.listSelections(), newSel = []; - for (var i = 0; i < ranges.length; i++) { - var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text; - if (line) { - if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1); - if (cur.ch > 0) { - cur = new Pos(cur.line, cur.ch + 1); - cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2), - Pos(cur.line, cur.ch - 2), cur, "+transpose"); - } else if (cur.line > cm.doc.first) { - var prev = getLine(cm.doc, cur.line - 1).text; - if (prev) - cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() + - prev.charAt(prev.length - 1), - Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose"); - } - } - newSel.push(new Range(cur, cur)); - } - cm.setSelections(newSel); - }); - }, - newlineAndIndent: function(cm) { - runInOp(cm, function() { - var len = cm.listSelections().length; - for (var i = 0; i < len; i++) { - var range = cm.listSelections()[i]; - cm.replaceRange(cm.doc.lineSeparator(), range.anchor, range.head, "+input"); - cm.indentLine(range.from().line + 1, null, true); - } - ensureCursorVisible(cm); - }); - }, - openLine: function(cm) {cm.replaceSelection("\n", "start")}, - toggleOverwrite: function(cm) {cm.toggleOverwrite();} - }; - - - // STANDARD KEYMAPS - - var keyMap = CodeMirror.keyMap = {}; - - keyMap.basic = { - "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", - "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", - "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", - "Tab": "defaultTab", "Shift-Tab": "indentAuto", - "Enter": "newlineAndIndent", "Insert": "toggleOverwrite", - "Esc": "singleSelection" - }; - // Note that the save and find-related commands aren't defined by - // default. User code or addons can define them. Unknown commands - // are simply ignored. - keyMap.pcDefault = { - "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", - "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown", - "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", - "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", - "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", - "Ctrl-[": "indentLess", "Ctrl-]": "indentMore", - "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection", - fallthrough: "basic" - }; - // Very basic readline/emacs-style bindings, which are standard on Mac. - keyMap.emacsy = { - "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", - "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", - "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", - "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars", - "Ctrl-O": "openLine" - }; - keyMap.macDefault = { - "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", - "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", - "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore", - "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", - "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", - "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight", - "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd", - fallthrough: ["basic", "emacsy"] - }; - keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; - - // KEYMAP DISPATCH - - function normalizeKeyName(name) { - var parts = name.split(/-(?!$)/), name = parts[parts.length - 1]; - var alt, ctrl, shift, cmd; - for (var i = 0; i < parts.length - 1; i++) { - var mod = parts[i]; - if (/^(cmd|meta|m)$/i.test(mod)) cmd = true; - else if (/^a(lt)?$/i.test(mod)) alt = true; - else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true; - else if (/^s(hift)$/i.test(mod)) shift = true; - else throw new Error("Unrecognized modifier name: " + mod); - } - if (alt) name = "Alt-" + name; - if (ctrl) name = "Ctrl-" + name; - if (cmd) name = "Cmd-" + name; - if (shift) name = "Shift-" + name; - return name; +// Used for horizontal relative motion. Dir is -1 or 1 (left or +// right), unit can be "char", "column" (like char, but doesn't +// cross line boundaries), "word" (across next word), or "group" (to +// the start of next group of word or non-word-non-whitespace +// chars). The visually param controls whether, in right-to-left +// text, direction 1 means to move towards the next index in the +// string, or towards the character to the right of the current +// position. The resulting position will have a hitSide=true +// property if it reached the end of the document. +function findPosH(doc, pos, dir, unit, visually) { + var line = pos.line, ch = pos.ch, origDir = dir + var lineObj = getLine(doc, line) + function findNextLine() { + var l = line + dir + if (l < doc.first || l >= doc.first + doc.size) { return false } + line = l + return lineObj = getLine(doc, l) + } + function moveOnce(boundToLine) { + var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true) + if (next == null) { + if (!boundToLine && findNextLine()) { + if (visually) { ch = (dir < 0 ? lineRight : lineLeft)(lineObj) } + else { ch = dir < 0 ? lineObj.text.length : 0 } + } else { return false } + } else { ch = next } + return true } - // This is a kludge to keep keymaps mostly working as raw objects - // (backwards compatibility) while at the same time support features - // like normalization and multi-stroke key bindings. It compiles a - // new normalized keymap, and then updates the old object to reflect - // this. - CodeMirror.normalizeKeyMap = function(keymap) { - var copy = {}; - for (var keyname in keymap) if (keymap.hasOwnProperty(keyname)) { - var value = keymap[keyname]; - if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue; - if (value == "...") { delete keymap[keyname]; continue; } - - var keys = map(keyname.split(" "), normalizeKeyName); - for (var i = 0; i < keys.length; i++) { - var val, name; - if (i == keys.length - 1) { - name = keys.join(" "); - val = value; - } else { - name = keys.slice(0, i + 1).join(" "); - val = "..."; - } - var prev = copy[name]; - if (!prev) copy[name] = val; - else if (prev != val) throw new Error("Inconsistent bindings for " + name); + if (unit == "char") { + moveOnce() + } else if (unit == "column") { + moveOnce(true) + } else if (unit == "word" || unit == "group") { + var sawType = null, group = unit == "group" + var helper = doc.cm && doc.cm.getHelper(pos, "wordChars") + for (var first = true;; first = false) { + if (dir < 0 && !moveOnce(!first)) { break } + var cur = lineObj.text.charAt(ch) || "\n" + var type = isWordChar(cur, helper) ? "w" + : group && cur == "\n" ? "n" + : !group || /\s/.test(cur) ? null + : "p" + if (group && !first && !type) { type = "s" } + if (sawType && sawType != type) { + if (dir < 0) {dir = 1; moveOnce()} + break } - delete keymap[keyname]; + + if (type) { sawType = type } + if (dir > 0 && !moveOnce(!first)) { break } } - for (var prop in copy) keymap[prop] = copy[prop]; - return keymap; - }; - - var lookupKey = CodeMirror.lookupKey = function(key, map, handle, context) { - map = getKeyMap(map); - var found = map.call ? map.call(key, context) : map[key]; - if (found === false) return "nothing"; - if (found === "...") return "multi"; - if (found != null && handle(found)) return "handled"; - - if (map.fallthrough) { - if (Object.prototype.toString.call(map.fallthrough) != "[object Array]") - return lookupKey(key, map.fallthrough, handle, context); - for (var i = 0; i < map.fallthrough.length; i++) { - var result = lookupKey(key, map.fallthrough[i], handle, context); - if (result) return result; - } - } - }; - - // Modifier key presses don't count as 'real' key presses for the - // purpose of keymap fallthrough. - var isModifierKey = CodeMirror.isModifierKey = function(value) { - var name = typeof value == "string" ? value : keyNames[value.keyCode]; - return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"; - }; - - // Look up the name of a key as indicated by an event object. - var keyName = CodeMirror.keyName = function(event, noShift) { - if (presto && event.keyCode == 34 && event["char"]) return false; - var base = keyNames[event.keyCode], name = base; - if (name == null || event.altGraphKey) return false; - if (event.altKey && base != "Alt") name = "Alt-" + name; - if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") name = "Ctrl-" + name; - if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") name = "Cmd-" + name; - if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name; - return name; - }; - - function getKeyMap(val) { - return typeof val == "string" ? keyMap[val] : val; } + var result = skipAtomic(doc, Pos(line, ch), pos, origDir, true) + if (!cmp(pos, result)) { result.hitSide = true } + return result +} - // FROMTEXTAREA +// For relative vertical movement. Dir may be -1 or 1. Unit can be +// "page" or "line". The resulting position will have a hitSide=true +// property if it reached the end of the document. +function findPosV(cm, pos, dir, unit) { + var doc = cm.doc, x = pos.left, y + if (unit == "page") { + var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight) + var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3) + y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount - CodeMirror.fromTextArea = function(textarea, options) { - options = options ? copyObj(options) : {}; - options.value = textarea.value; - if (!options.tabindex && textarea.tabIndex) - options.tabindex = textarea.tabIndex; - if (!options.placeholder && textarea.placeholder) - options.placeholder = textarea.placeholder; - // Set autofocus to true if this textarea is focused, or if it has - // autofocus and no other element is focused. - if (options.autofocus == null) { - var hasFocus = activeElt(); - options.autofocus = hasFocus == textarea || - textarea.getAttribute("autofocus") != null && hasFocus == document.body; - } + } else if (unit == "line") { + y = dir > 0 ? pos.bottom + 3 : pos.top - 3 + } + var target + for (;;) { + target = coordsChar(cm, x, y) + if (!target.outside) { break } + if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break } + y += dir * 5 + } + return target +} - function save() {textarea.value = cm.getValue();} - if (textarea.form) { - on(textarea.form, "submit", save); - // Deplorable hack to make the submit method do the right thing. - if (!options.leaveSubmitMethodAlone) { - var form = textarea.form, realSubmit = form.submit; - try { - var wrappedSubmit = form.submit = function() { - save(); - form.submit = realSubmit; - form.submit(); - form.submit = wrappedSubmit; - }; - } catch(e) {} +// CONTENTEDITABLE INPUT STYLE + +function ContentEditableInput(cm) { + this.cm = cm + this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null + this.polling = new Delayed() + this.composing = null + this.gracePeriod = false + this.readDOMTimeout = null +} + +ContentEditableInput.prototype = copyObj({ + init: function(display) { + var this$1 = this; + + var input = this, cm = input.cm + var div = input.div = display.lineDiv + disableBrowserMagic(div, cm.options.spellcheck) + + on(div, "paste", function (e) { + if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } + // IE doesn't fire input events, so we schedule a read for the pasted content in this way + if (ie_version <= 11) { setTimeout(operation(cm, function () { + if (!input.pollContent()) { regChange(cm) } + }), 20) } + }) + + on(div, "compositionstart", function (e) { + this$1.composing = {data: e.data} + }) + on(div, "compositionupdate", function (e) { + if (!this$1.composing) { this$1.composing = {data: e.data} } + }) + on(div, "compositionend", function (e) { + if (this$1.composing) { + if (e.data != this$1.composing.data) { this$1.readFromDOMSoon() } + this$1.composing = null } - } + }) - options.finishInit = function(cm) { - cm.save = save; - cm.getTextArea = function() { return textarea; }; - cm.toTextArea = function() { - cm.toTextArea = isNaN; // Prevent this from being ran twice - save(); - textarea.parentNode.removeChild(cm.getWrapperElement()); - textarea.style.display = ""; - if (textarea.form) { - off(textarea.form, "submit", save); - if (typeof textarea.form.submit == "function") - textarea.form.submit = realSubmit; - } - }; - }; + on(div, "touchstart", function () { return input.forceCompositionEnd(); }) - textarea.style.display = "none"; - var cm = CodeMirror(function(node) { - textarea.parentNode.insertBefore(node, textarea.nextSibling); - }, options); - return cm; - }; + on(div, "input", function () { + if (!this$1.composing) { this$1.readFromDOMSoon() } + }) - // STRING STREAM - - // Fed to the mode parsers, provides helper functions to make - // parsers more succinct. - - var StringStream = CodeMirror.StringStream = function(string, tabSize) { - this.pos = this.start = 0; - this.string = string; - this.tabSize = tabSize || 8; - this.lastColumnPos = this.lastColumnValue = 0; - this.lineStart = 0; - }; - - StringStream.prototype = { - eol: function() {return this.pos >= this.string.length;}, - sol: function() {return this.pos == this.lineStart;}, - peek: function() {return this.string.charAt(this.pos) || undefined;}, - next: function() { - if (this.pos < this.string.length) - return this.string.charAt(this.pos++); - }, - eat: function(match) { - var ch = this.string.charAt(this.pos); - if (typeof match == "string") var ok = ch == match; - else var ok = ch && (match.test ? match.test(ch) : match(ch)); - if (ok) {++this.pos; return ch;} - }, - eatWhile: function(match) { - var start = this.pos; - while (this.eat(match)){} - return this.pos > start; - }, - eatSpace: function() { - var start = this.pos; - while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos; - return this.pos > start; - }, - skipToEnd: function() {this.pos = this.string.length;}, - skipTo: function(ch) { - var found = this.string.indexOf(ch, this.pos); - if (found > -1) {this.pos = found; return true;} - }, - backUp: function(n) {this.pos -= n;}, - column: function() { - if (this.lastColumnPos < this.start) { - this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue); - this.lastColumnPos = this.start; - } - return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0); - }, - indentation: function() { - return countColumn(this.string, null, this.tabSize) - - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0); - }, - match: function(pattern, consume, caseInsensitive) { - if (typeof pattern == "string") { - var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;}; - var substr = this.string.substr(this.pos, pattern.length); - if (cased(substr) == cased(pattern)) { - if (consume !== false) this.pos += pattern.length; - return true; - } + function onCopyCut(e) { + if (signalDOMEvent(cm, e)) { return } + if (cm.somethingSelected()) { + setLastCopied({lineWise: false, text: cm.getSelections()}) + if (e.type == "cut") { cm.replaceSelection("", null, "cut") } + } else if (!cm.options.lineWiseCopyCut) { + return } else { - var match = this.string.slice(this.pos).match(pattern); - if (match && match.index > 0) return null; - if (match && consume !== false) this.pos += match[0].length; - return match; - } - }, - current: function(){return this.string.slice(this.start, this.pos);}, - hideFirstChars: function(n, inner) { - this.lineStart += n; - try { return inner(); } - finally { this.lineStart -= n; } - } - }; - - // TEXTMARKERS - - // Created with markText and setBookmark methods. A TextMarker is a - // handle that can be used to clear or find a marked position in the - // document. Line objects hold arrays (markedSpans) containing - // {from, to, marker} object pointing to such marker objects, and - // indicating that such a marker is present on that line. Multiple - // lines may point to the same marker when it spans across lines. - // The spans will have null for their from/to properties when the - // marker continues beyond the start/end of the line. Markers have - // links back to the lines they currently touch. - - var nextMarkerId = 0; - - var TextMarker = CodeMirror.TextMarker = function(doc, type) { - this.lines = []; - this.type = type; - this.doc = doc; - this.id = ++nextMarkerId; - }; - eventMixin(TextMarker); - - // Clear the marker. - TextMarker.prototype.clear = function() { - if (this.explicitlyCleared) return; - var cm = this.doc.cm, withOp = cm && !cm.curOp; - if (withOp) startOperation(cm); - if (hasHandler(this, "clear")) { - var found = this.find(); - if (found) signalLater(this, "clear", found.from, found.to); - } - var min = null, max = null; - for (var i = 0; i < this.lines.length; ++i) { - var line = this.lines[i]; - var span = getMarkedSpanFor(line.markedSpans, this); - if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text"); - else if (cm) { - if (span.to != null) max = lineNo(line); - if (span.from != null) min = lineNo(line); - } - line.markedSpans = removeMarkedSpan(line.markedSpans, span); - if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm) - updateLineHeight(line, textHeight(cm.display)); - } - if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) { - var visual = visualLine(this.lines[i]), len = lineLength(visual); - if (len > cm.display.maxLineLength) { - cm.display.maxLine = visual; - cm.display.maxLineLength = len; - cm.display.maxLineChanged = true; - } - } - - if (min != null && cm && this.collapsed) regChange(cm, min, max + 1); - this.lines.length = 0; - this.explicitlyCleared = true; - if (this.atomic && this.doc.cantEdit) { - this.doc.cantEdit = false; - if (cm) reCheckSelection(cm.doc); - } - if (cm) signalLater(cm, "markerCleared", cm, this); - if (withOp) endOperation(cm); - if (this.parent) this.parent.clear(); - }; - - // Find the position of the marker in the document. Returns a {from, - // to} object by default. Side can be passed to get a specific side - // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the - // Pos objects returned contain a line object, rather than a line - // number (used to prevent looking up the same line twice). - TextMarker.prototype.find = function(side, lineObj) { - if (side == null && this.type == "bookmark") side = 1; - var from, to; - for (var i = 0; i < this.lines.length; ++i) { - var line = this.lines[i]; - var span = getMarkedSpanFor(line.markedSpans, this); - if (span.from != null) { - from = Pos(lineObj ? line : lineNo(line), span.from); - if (side == -1) return from; - } - if (span.to != null) { - to = Pos(lineObj ? line : lineNo(line), span.to); - if (side == 1) return to; - } - } - return from && {from: from, to: to}; - }; - - // Signals that the marker's widget changed, and surrounding layout - // should be recomputed. - TextMarker.prototype.changed = function() { - var pos = this.find(-1, true), widget = this, cm = this.doc.cm; - if (!pos || !cm) return; - runInOp(cm, function() { - var line = pos.line, lineN = lineNo(pos.line); - var view = findViewForLine(cm, lineN); - if (view) { - clearLineMeasurementCacheFor(view); - cm.curOp.selectionChanged = cm.curOp.forceUpdate = true; - } - cm.curOp.updateMaxLine = true; - if (!lineIsHidden(widget.doc, line) && widget.height != null) { - var oldHeight = widget.height; - widget.height = null; - var dHeight = widgetHeight(widget) - oldHeight; - if (dHeight) - updateLineHeight(line, line.height + dHeight); - } - }); - }; - - TextMarker.prototype.attachLine = function(line) { - if (!this.lines.length && this.doc.cm) { - var op = this.doc.cm.curOp; - if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) - (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); - } - this.lines.push(line); - }; - TextMarker.prototype.detachLine = function(line) { - this.lines.splice(indexOf(this.lines, line), 1); - if (!this.lines.length && this.doc.cm) { - var op = this.doc.cm.curOp; - (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this); - } - }; - - // Collapsed markers have unique ids, in order to be able to order - // them, which is needed for uniquely determining an outer marker - // when they overlap (they may nest, but not partially overlap). - var nextMarkerId = 0; - - // Create a marker, wire it up to the right lines, and - function markText(doc, from, to, options, type) { - // Shared markers (across linked documents) are handled separately - // (markTextShared will call out to this again, once per - // document). - if (options && options.shared) return markTextShared(doc, from, to, options, type); - // Ensure we are in an operation. - if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type); - - var marker = new TextMarker(doc, type), diff = cmp(from, to); - if (options) copyObj(options, marker, false); - // Don't connect empty markers unless clearWhenEmpty is false - if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false) - return marker; - if (marker.replacedWith) { - // Showing up as a widget implies collapsed (widget replaces text) - marker.collapsed = true; - marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget"); - if (!options.handleMouseEvents) marker.widgetNode.setAttribute("cm-ignore-events", "true"); - if (options.insertLeft) marker.widgetNode.insertLeft = true; - } - if (marker.collapsed) { - if (conflictingCollapsedRange(doc, from.line, from, to, marker) || - from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker)) - throw new Error("Inserting collapsed marker partially overlapping an existing one"); - sawCollapsedSpans = true; - } - - if (marker.addToHistory) - addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); - - var curLine = from.line, cm = doc.cm, updateMaxLine; - doc.iter(curLine, to.line + 1, function(line) { - if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine) - updateMaxLine = true; - if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0); - addMarkedSpan(line, new MarkedSpan(marker, - curLine == from.line ? from.ch : null, - curLine == to.line ? to.ch : null)); - ++curLine; - }); - // lineIsHidden depends on the presence of the spans, so needs a second pass - if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) { - if (lineIsHidden(doc, line)) updateLineHeight(line, 0); - }); - - if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); }); - - if (marker.readOnly) { - sawReadOnlySpans = true; - if (doc.history.done.length || doc.history.undone.length) - doc.clearHistory(); - } - if (marker.collapsed) { - marker.id = ++nextMarkerId; - marker.atomic = true; - } - if (cm) { - // Sync editor state - if (updateMaxLine) cm.curOp.updateMaxLine = true; - if (marker.collapsed) - regChange(cm, from.line, to.line + 1); - else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css) - for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text"); - if (marker.atomic) reCheckSelection(cm.doc); - signalLater(cm, "markerAdded", cm, marker); - } - return marker; - } - - // SHARED TEXTMARKERS - - // A shared marker spans multiple linked documents. It is - // implemented as a meta-marker-object controlling multiple normal - // markers. - var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) { - this.markers = markers; - this.primary = primary; - for (var i = 0; i < markers.length; ++i) - markers[i].parent = this; - }; - eventMixin(SharedTextMarker); - - SharedTextMarker.prototype.clear = function() { - if (this.explicitlyCleared) return; - this.explicitlyCleared = true; - for (var i = 0; i < this.markers.length; ++i) - this.markers[i].clear(); - signalLater(this, "clear"); - }; - SharedTextMarker.prototype.find = function(side, lineObj) { - return this.primary.find(side, lineObj); - }; - - function markTextShared(doc, from, to, options, type) { - options = copyObj(options); - options.shared = false; - var markers = [markText(doc, from, to, options, type)], primary = markers[0]; - var widget = options.widgetNode; - linkedDocs(doc, function(doc) { - if (widget) options.widgetNode = widget.cloneNode(true); - markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); - for (var i = 0; i < doc.linked.length; ++i) - if (doc.linked[i].isParent) return; - primary = lst(markers); - }); - return new SharedTextMarker(markers, primary); - } - - function findSharedMarkers(doc) { - return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), - function(m) { return m.parent; }); - } - - function copySharedMarkers(doc, markers) { - for (var i = 0; i < markers.length; i++) { - var marker = markers[i], pos = marker.find(); - var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to); - if (cmp(mFrom, mTo)) { - var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type); - marker.markers.push(subMark); - subMark.parent = marker; - } - } - } - - function detachSharedMarkers(markers) { - for (var i = 0; i < markers.length; i++) { - var marker = markers[i], linked = [marker.primary.doc];; - linkedDocs(marker.primary.doc, function(d) { linked.push(d); }); - for (var j = 0; j < marker.markers.length; j++) { - var subMarker = marker.markers[j]; - if (indexOf(linked, subMarker.doc) == -1) { - subMarker.parent = null; - marker.markers.splice(j--, 1); + var ranges = copyableRanges(cm) + setLastCopied({lineWise: true, text: ranges.text}) + if (e.type == "cut") { + cm.operation(function () { + cm.setSelections(ranges.ranges, 0, sel_dontScroll) + cm.replaceSelection("", null, "cut") + }) } } - } - } - - // TEXTMARKER SPANS - - function MarkedSpan(marker, from, to) { - this.marker = marker; - this.from = from; this.to = to; - } - - // Search an array of spans for a span matching the given marker. - function getMarkedSpanFor(spans, marker) { - if (spans) for (var i = 0; i < spans.length; ++i) { - var span = spans[i]; - if (span.marker == marker) return span; - } - } - // Remove a span from an array, returning undefined if no spans are - // left (we don't store arrays for lines without spans). - function removeMarkedSpan(spans, span) { - for (var r, i = 0; i < spans.length; ++i) - if (spans[i] != span) (r || (r = [])).push(spans[i]); - return r; - } - // Add a span to a line. - function addMarkedSpan(line, span) { - line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; - span.marker.attachLine(line); - } - - // Used for the algorithm that adjusts markers for a change in the - // document. These functions cut an array of spans at a given - // character position, returning an array of remaining chunks (or - // undefined if nothing remains). - function markedSpansBefore(old, startCh, isInsert) { - if (old) for (var i = 0, nw; i < old.length; ++i) { - var span = old[i], marker = span.marker; - var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); - if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) { - var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh); - (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to)); - } - } - return nw; - } - function markedSpansAfter(old, endCh, isInsert) { - if (old) for (var i = 0, nw; i < old.length; ++i) { - var span = old[i], marker = span.marker; - var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); - if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) { - var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh); - (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh, - span.to == null ? null : span.to - endCh)); - } - } - return nw; - } - - // Given a change object, compute the new set of marker spans that - // cover the line in which the change took place. Removes spans - // entirely within the change, reconnects spans belonging to the - // same marker that appear on both sides of the change, and cuts off - // spans partially within the change. Returns an array of span - // arrays with one element for each line in (after) the change. - function stretchSpansOverChange(doc, change) { - if (change.full) return null; - var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; - var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; - if (!oldFirst && !oldLast) return null; - - var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0; - // Get the spans that 'stick out' on both sides - var first = markedSpansBefore(oldFirst, startCh, isInsert); - var last = markedSpansAfter(oldLast, endCh, isInsert); - - // Next, merge those two ends - var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0); - if (first) { - // Fix up .to properties of first - for (var i = 0; i < first.length; ++i) { - var span = first[i]; - if (span.to == null) { - var found = getMarkedSpanFor(last, span.marker); - if (!found) span.to = startCh; - else if (sameLine) span.to = found.to == null ? null : found.to + offset; + if (e.clipboardData) { + e.clipboardData.clearData() + var content = lastCopied.text.join("\n") + // iOS exposes the clipboard API, but seems to discard content inserted into it + e.clipboardData.setData("Text", content) + if (e.clipboardData.getData("Text") == content) { + e.preventDefault() + return } } + // Old-fashioned briefly-focus-a-textarea hack + var kludge = hiddenTextarea(), te = kludge.firstChild + cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild) + te.value = lastCopied.text.join("\n") + var hadFocus = document.activeElement + selectInput(te) + setTimeout(function () { + cm.display.lineSpace.removeChild(kludge) + hadFocus.focus() + if (hadFocus == div) { input.showPrimarySelection() } + }, 50) } - if (last) { - // Fix up .from in last (or move them into first in case of sameLine) - for (var i = 0; i < last.length; ++i) { - var span = last[i]; - if (span.to != null) span.to += offset; - if (span.from == null) { - var found = getMarkedSpanFor(first, span.marker); - if (!found) { - span.from = offset; - if (sameLine) (first || (first = [])).push(span); - } - } else { - span.from += offset; - if (sameLine) (first || (first = [])).push(span); - } - } - } - // Make sure we didn't create any zero-length spans - if (first) first = clearEmptySpans(first); - if (last && last != first) last = clearEmptySpans(last); + on(div, "copy", onCopyCut) + on(div, "cut", onCopyCut) + }, - var newMarkers = [first]; - if (!sameLine) { - // Fill gap with whole-line-spans - var gap = change.text.length - 2, gapMarkers; - if (gap > 0 && first) - for (var i = 0; i < first.length; ++i) - if (first[i].to == null) - (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null)); - for (var i = 0; i < gap; ++i) - newMarkers.push(gapMarkers); - newMarkers.push(last); - } - return newMarkers; - } - - // Remove spans that are empty and don't have a clearWhenEmpty - // option of false. - function clearEmptySpans(spans) { - for (var i = 0; i < spans.length; ++i) { - var span = spans[i]; - if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false) - spans.splice(i--, 1); - } - if (!spans.length) return null; - return spans; - } - - // Used for un/re-doing changes from the history. Combines the - // result of computing the existing spans with the set of spans that - // existed in the history (so that deleting around a span and then - // undoing brings back the span). - function mergeOldSpans(doc, change) { - var old = getOldSpans(doc, change); - var stretched = stretchSpansOverChange(doc, change); - if (!old) return stretched; - if (!stretched) return old; - - for (var i = 0; i < old.length; ++i) { - var oldCur = old[i], stretchCur = stretched[i]; - if (oldCur && stretchCur) { - spans: for (var j = 0; j < stretchCur.length; ++j) { - var span = stretchCur[j]; - for (var k = 0; k < oldCur.length; ++k) - if (oldCur[k].marker == span.marker) continue spans; - oldCur.push(span); - } - } else if (stretchCur) { - old[i] = stretchCur; - } - } - return old; - } - - // Used to 'clip' out readOnly ranges when making a change. - function removeReadOnlyRanges(doc, from, to) { - var markers = null; - doc.iter(from.line, to.line + 1, function(line) { - if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) { - var mark = line.markedSpans[i].marker; - if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) - (markers || (markers = [])).push(mark); - } - }); - if (!markers) return null; - var parts = [{from: from, to: to}]; - for (var i = 0; i < markers.length; ++i) { - var mk = markers[i], m = mk.find(0); - for (var j = 0; j < parts.length; ++j) { - var p = parts[j]; - if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue; - var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to); - if (dfrom < 0 || !mk.inclusiveLeft && !dfrom) - newParts.push({from: p.from, to: m.from}); - if (dto > 0 || !mk.inclusiveRight && !dto) - newParts.push({from: m.to, to: p.to}); - parts.splice.apply(parts, newParts); - j += newParts.length - 1; - } - } - return parts; - } - - // Connect or disconnect spans from a line. - function detachMarkedSpans(line) { - var spans = line.markedSpans; - if (!spans) return; - for (var i = 0; i < spans.length; ++i) - spans[i].marker.detachLine(line); - line.markedSpans = null; - } - function attachMarkedSpans(line, spans) { - if (!spans) return; - for (var i = 0; i < spans.length; ++i) - spans[i].marker.attachLine(line); - line.markedSpans = spans; - } - - // Helpers used when computing which overlapping collapsed span - // counts as the larger one. - function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; } - function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; } - - // Returns a number indicating which of two overlapping collapsed - // spans is larger (and thus includes the other). Falls back to - // comparing ids when the spans cover exactly the same range. - function compareCollapsedMarkers(a, b) { - var lenDiff = a.lines.length - b.lines.length; - if (lenDiff != 0) return lenDiff; - var aPos = a.find(), bPos = b.find(); - var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b); - if (fromCmp) return -fromCmp; - var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b); - if (toCmp) return toCmp; - return b.id - a.id; - } - - // Find out whether a line ends or starts in a collapsed span. If - // so, return the marker for that span. - function collapsedSpanAtSide(line, start) { - var sps = sawCollapsedSpans && line.markedSpans, found; - if (sps) for (var sp, i = 0; i < sps.length; ++i) { - sp = sps[i]; - if (sp.marker.collapsed && (start ? sp.from : sp.to) == null && - (!found || compareCollapsedMarkers(found, sp.marker) < 0)) - found = sp.marker; - } - return found; - } - function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); } - function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); } - - // Test whether there exists a collapsed span that partially - // overlaps (covers the start or end, but not both) of a new span. - // Such overlap is not allowed. - function conflictingCollapsedRange(doc, lineNo, from, to, marker) { - var line = getLine(doc, lineNo); - var sps = sawCollapsedSpans && line.markedSpans; - if (sps) for (var i = 0; i < sps.length; ++i) { - var sp = sps[i]; - if (!sp.marker.collapsed) continue; - var found = sp.marker.find(0); - var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker); - var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker); - if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue; - if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) || - fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0)) - return true; - } - } - - // A visual line is a line as drawn on the screen. Folding, for - // example, can cause multiple logical lines to appear on the same - // visual line. This finds the start of the visual line that the - // given line is part of (usually that is the line itself). - function visualLine(line) { - var merged; - while (merged = collapsedSpanAtStart(line)) - line = merged.find(-1, true).line; - return line; - } - - // Returns an array of logical lines that continue the visual line - // started by the argument, or undefined if there are no such lines. - function visualLineContinued(line) { - var merged, lines; - while (merged = collapsedSpanAtEnd(line)) { - line = merged.find(1, true).line; - (lines || (lines = [])).push(line); - } - return lines; - } - - // Get the line number of the start of the visual line that the - // given line number is part of. - function visualLineNo(doc, lineN) { - var line = getLine(doc, lineN), vis = visualLine(line); - if (line == vis) return lineN; - return lineNo(vis); - } - // Get the line number of the start of the next visual line after - // the given line. - function visualLineEndNo(doc, lineN) { - if (lineN > doc.lastLine()) return lineN; - var line = getLine(doc, lineN), merged; - if (!lineIsHidden(doc, line)) return lineN; - while (merged = collapsedSpanAtEnd(line)) - line = merged.find(1, true).line; - return lineNo(line) + 1; - } - - // Compute whether a line is hidden. Lines count as hidden when they - // are part of a visual line that starts with another line, or when - // they are entirely covered by collapsed, non-widget span. - function lineIsHidden(doc, line) { - var sps = sawCollapsedSpans && line.markedSpans; - if (sps) for (var sp, i = 0; i < sps.length; ++i) { - sp = sps[i]; - if (!sp.marker.collapsed) continue; - if (sp.from == null) return true; - if (sp.marker.widgetNode) continue; - if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) - return true; - } - } - function lineIsHiddenInner(doc, line, span) { - if (span.to == null) { - var end = span.marker.find(1, true); - return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker)); - } - if (span.marker.inclusiveRight && span.to == line.text.length) - return true; - for (var sp, i = 0; i < line.markedSpans.length; ++i) { - sp = line.markedSpans[i]; - if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to && - (sp.to == null || sp.to != span.from) && - (sp.marker.inclusiveLeft || span.marker.inclusiveRight) && - lineIsHiddenInner(doc, line, sp)) return true; - } - } - - // LINE WIDGETS - - // Line widgets are block elements displayed above or below a line. - - var LineWidget = CodeMirror.LineWidget = function(doc, node, options) { - if (options) for (var opt in options) if (options.hasOwnProperty(opt)) - this[opt] = options[opt]; - this.doc = doc; - this.node = node; - }; - eventMixin(LineWidget); - - function adjustScrollWhenAboveVisible(cm, line, diff) { - if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) - addToScrollPos(cm, null, diff); - } - - LineWidget.prototype.clear = function() { - var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line); - if (no == null || !ws) return; - for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1); - if (!ws.length) line.widgets = null; - var height = widgetHeight(this); - updateLineHeight(line, Math.max(0, line.height - height)); - if (cm) runInOp(cm, function() { - adjustScrollWhenAboveVisible(cm, line, -height); - regLineChange(cm, no, "widget"); - }); - }; - LineWidget.prototype.changed = function() { - var oldH = this.height, cm = this.doc.cm, line = this.line; - this.height = null; - var diff = widgetHeight(this) - oldH; - if (!diff) return; - updateLineHeight(line, line.height + diff); - if (cm) runInOp(cm, function() { - cm.curOp.forceUpdate = true; - adjustScrollWhenAboveVisible(cm, line, diff); - }); - }; - - function widgetHeight(widget) { - if (widget.height != null) return widget.height; - var cm = widget.doc.cm; - if (!cm) return 0; - if (!contains(document.body, widget.node)) { - var parentStyle = "position: relative;"; - if (widget.coverGutter) - parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; - if (widget.noHScroll) - parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; - removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle)); - } - return widget.height = widget.node.parentNode.offsetHeight; - } - - function addLineWidget(doc, handle, node, options) { - var widget = new LineWidget(doc, node, options); - var cm = doc.cm; - if (cm && widget.noHScroll) cm.display.alignWidgets = true; - changeLine(doc, handle, "widget", function(line) { - var widgets = line.widgets || (line.widgets = []); - if (widget.insertAt == null) widgets.push(widget); - else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); - widget.line = line; - if (cm && !lineIsHidden(doc, line)) { - var aboveVisible = heightAtLine(line) < doc.scrollTop; - updateLineHeight(line, line.height + widgetHeight(widget)); - if (aboveVisible) addToScrollPos(cm, null, widget.height); - cm.curOp.forceUpdate = true; - } - return true; - }); - return widget; - } - - // LINE DATA STRUCTURE - - // Line objects. These hold state related to a line, including - // highlighting info (the styles array). - var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) { - this.text = text; - attachMarkedSpans(this, markedSpans); - this.height = estimateHeight ? estimateHeight(this) : 1; - }; - eventMixin(Line); - Line.prototype.lineNo = function() { return lineNo(this); }; - - // Change the content (text, markers) of a line. Automatically - // invalidates cached information and tries to re-estimate the - // line's height. - function updateLine(line, text, markedSpans, estimateHeight) { - line.text = text; - if (line.stateAfter) line.stateAfter = null; - if (line.styles) line.styles = null; - if (line.order != null) line.order = null; - detachMarkedSpans(line); - attachMarkedSpans(line, markedSpans); - var estHeight = estimateHeight ? estimateHeight(line) : 1; - if (estHeight != line.height) updateLineHeight(line, estHeight); - } - - // Detach a line from the document tree and its markers. - function cleanUpLine(line) { - line.parent = null; - detachMarkedSpans(line); - } - - function extractLineClasses(type, output) { - if (type) for (;;) { - var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/); - if (!lineClass) break; - type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length); - var prop = lineClass[1] ? "bgClass" : "textClass"; - if (output[prop] == null) - output[prop] = lineClass[2]; - else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop])) - output[prop] += " " + lineClass[2]; - } - return type; - } - - function callBlankLine(mode, state) { - if (mode.blankLine) return mode.blankLine(state); - if (!mode.innerMode) return; - var inner = CodeMirror.innerMode(mode, state); - if (inner.mode.blankLine) return inner.mode.blankLine(inner.state); - } - - function readToken(mode, stream, state, inner) { - for (var i = 0; i < 10; i++) { - if (inner) inner[0] = CodeMirror.innerMode(mode, state).mode; - var style = mode.token(stream, state); - if (stream.pos > stream.start) return style; - } - throw new Error("Mode " + mode.name + " failed to advance stream."); - } - - // Utility for getTokenAt and getLineTokens - function takeToken(cm, pos, precise, asArray) { - function getObj(copy) { - return {start: stream.start, end: stream.pos, - string: stream.current(), - type: style || null, - state: copy ? copyState(doc.mode, state) : state}; - } - - var doc = cm.doc, mode = doc.mode, style; - pos = clipPos(doc, pos); - var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise); - var stream = new StringStream(line.text, cm.options.tabSize), tokens; - if (asArray) tokens = []; - while ((asArray || stream.pos < pos.ch) && !stream.eol()) { - stream.start = stream.pos; - style = readToken(mode, stream, state); - if (asArray) tokens.push(getObj(true)); - } - return asArray ? tokens : getObj(); - } - - // Run the given mode's parser over a line, calling f for each token. - function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) { - var flattenSpans = mode.flattenSpans; - if (flattenSpans == null) flattenSpans = cm.options.flattenSpans; - var curStart = 0, curStyle = null; - var stream = new StringStream(text, cm.options.tabSize), style; - var inner = cm.options.addModeClass && [null]; - if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses); - while (!stream.eol()) { - if (stream.pos > cm.options.maxHighlightLength) { - flattenSpans = false; - if (forceToEnd) processLine(cm, text, state, stream.pos); - stream.pos = text.length; - style = null; - } else { - style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses); - } - if (inner) { - var mName = inner[0].name; - if (mName) style = "m-" + (style ? mName + " " + style : mName); - } - if (!flattenSpans || curStyle != style) { - while (curStart < stream.start) { - curStart = Math.min(stream.start, curStart + 50000); - f(curStart, curStyle); - } - curStyle = style; - } - stream.start = stream.pos; - } - while (curStart < stream.pos) { - // Webkit seems to refuse to render text nodes longer than 57444 characters - var pos = Math.min(stream.pos, curStart + 50000); - f(pos, curStyle); - curStart = pos; - } - } - - // Compute a style array (an array starting with a mode generation - // -- for invalidation -- followed by pairs of end positions and - // style strings), which is used to highlight the tokens on the - // line. - function highlightLine(cm, line, state, forceToEnd) { - // A styles array always starts with a number identifying the - // mode/overlays that it is based on (for easy invalidation). - var st = [cm.state.modeGen], lineClasses = {}; - // Compute the base array of styles - runMode(cm, line.text, cm.doc.mode, state, function(end, style) { - st.push(end, style); - }, lineClasses, forceToEnd); - - // Run overlays, adjust style array. - for (var o = 0; o < cm.state.overlays.length; ++o) { - var overlay = cm.state.overlays[o], i = 1, at = 0; - runMode(cm, line.text, overlay.mode, true, function(end, style) { - var start = i; - // Ensure there's a token end at the current position, and that i points at it - while (at < end) { - var i_end = st[i]; - if (i_end > end) - st.splice(i, 1, end, st[i+1], i_end); - i += 2; - at = Math.min(end, i_end); - } - if (!style) return; - if (overlay.opaque) { - st.splice(start, i - start, end, "cm-overlay " + style); - i = start + 2; - } else { - for (; start < i; start += 2) { - var cur = st[start+1]; - st[start+1] = (cur ? cur + " " : "") + "cm-overlay " + style; - } - } - }, lineClasses); - } - - return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}; - } - - function getLineStyles(cm, line, updateFrontier) { - if (!line.styles || line.styles[0] != cm.state.modeGen) { - var state = getStateBefore(cm, lineNo(line)); - var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state); - line.stateAfter = state; - line.styles = result.styles; - if (result.classes) line.styleClasses = result.classes; - else if (line.styleClasses) line.styleClasses = null; - if (updateFrontier === cm.doc.frontier) cm.doc.frontier++; - } - return line.styles; - } - - // Lightweight form of highlight -- proceed over this line and - // update state, but don't save a style array. Used for lines that - // aren't currently visible. - function processLine(cm, text, state, startAt) { - var mode = cm.doc.mode; - var stream = new StringStream(text, cm.options.tabSize); - stream.start = stream.pos = startAt || 0; - if (text == "") callBlankLine(mode, state); - while (!stream.eol()) { - readToken(mode, stream, state); - stream.start = stream.pos; - } - } - - // Convert a style as returned by a mode (either null, or a string - // containing one or more styles) to a CSS style. This is cached, - // and also looks for line-wide styles. - var styleToClassCache = {}, styleToClassCacheWithMode = {}; - function interpretTokenStyle(style, options) { - if (!style || /^\s*$/.test(style)) return null; - var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache; - return cache[style] || - (cache[style] = style.replace(/\S+/g, "cm-$&")); - } - - // Render the DOM representation of the text of a line. Also builds - // up a 'line map', which points at the DOM nodes that represent - // specific stretches of text, and is used by the measuring code. - // The returned object contains the DOM node, this map, and - // information about line-wide styles that were set by the mode. - function buildLineContent(cm, lineView) { - // The padding-right forces the element to have a 'border', which - // is needed on Webkit to be able to get line-level bounding - // rectangles for it (in measureChar). - var content = elt("span", null, null, webkit ? "padding-right: .1px" : null); - var builder = {pre: elt("pre", [content], "CodeMirror-line"), content: content, - col: 0, pos: 0, cm: cm, - trailingSpace: false, - splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")}; - lineView.measure = {}; - - // Iterate over the logical lines that make up this visual line. - for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) { - var line = i ? lineView.rest[i - 1] : lineView.line, order; - builder.pos = 0; - builder.addToken = buildToken; - // Optionally wire in some hacks into the token-rendering - // algorithm, to deal with browser quirks. - if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line))) - builder.addToken = buildTokenBadBidi(builder.addToken, order); - builder.map = []; - var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line); - insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate)); - if (line.styleClasses) { - if (line.styleClasses.bgClass) - builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); - if (line.styleClasses.textClass) - builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); - } - - // Ensure at least a single node is present, for measuring. - if (builder.map.length == 0) - builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); - - // Store the map and a cache object for the current logical line - if (i == 0) { - lineView.measure.map = builder.map; - lineView.measure.cache = {}; - } else { - (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map); - (lineView.measure.caches || (lineView.measure.caches = [])).push({}); - } - } - - // See issue #2901 - if (webkit) { - var last = builder.content.lastChild - if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab"))) - builder.content.className = "cm-tab-wrap-hack"; - } - - signal(cm, "renderLine", cm, lineView.line, builder.pre); - if (builder.pre.className) - builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); - - return builder; - } - - function defaultSpecialCharPlaceholder(ch) { - var token = elt("span", "\u2022", "cm-invalidchar"); - token.title = "\\u" + ch.charCodeAt(0).toString(16); - token.setAttribute("aria-label", token.title); - return token; - } - - // Build up the DOM representation for a single token, and add it to - // the line map. Takes care to render special characters separately. - function buildToken(builder, text, style, startStyle, endStyle, title, css) { - if (!text) return; - var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text - var special = builder.cm.state.specialChars, mustWrap = false; - if (!special.test(text)) { - builder.col += text.length; - var content = document.createTextNode(displayText); - builder.map.push(builder.pos, builder.pos + text.length, content); - if (ie && ie_version < 9) mustWrap = true; - builder.pos += text.length; - } else { - var content = document.createDocumentFragment(), pos = 0; - while (true) { - special.lastIndex = pos; - var m = special.exec(text); - var skipped = m ? m.index - pos : text.length - pos; - if (skipped) { - var txt = document.createTextNode(displayText.slice(pos, pos + skipped)); - if (ie && ie_version < 9) content.appendChild(elt("span", [txt])); - else content.appendChild(txt); - builder.map.push(builder.pos, builder.pos + skipped, txt); - builder.col += skipped; - builder.pos += skipped; - } - if (!m) break; - pos += skipped + 1; - if (m[0] == "\t") { - var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; - var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); - txt.setAttribute("role", "presentation"); - txt.setAttribute("cm-text", "\t"); - builder.col += tabWidth; - } else if (m[0] == "\r" || m[0] == "\n") { - var txt = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar")); - txt.setAttribute("cm-text", m[0]); - builder.col += 1; - } else { - var txt = builder.cm.options.specialCharPlaceholder(m[0]); - txt.setAttribute("cm-text", m[0]); - if (ie && ie_version < 9) content.appendChild(elt("span", [txt])); - else content.appendChild(txt); - builder.col += 1; - } - builder.map.push(builder.pos, builder.pos + 1, txt); - builder.pos++; - } - } - builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32 - if (style || startStyle || endStyle || mustWrap || css) { - var fullStyle = style || ""; - if (startStyle) fullStyle += startStyle; - if (endStyle) fullStyle += endStyle; - var token = elt("span", [content], fullStyle, css); - if (title) token.title = title; - return builder.content.appendChild(token); - } - builder.content.appendChild(content); - } - - function splitSpaces(text, trailingBefore) { - if (text.length > 1 && !/ /.test(text)) return text - var spaceBefore = trailingBefore, result = "" - for (var i = 0; i < text.length; i++) { - var ch = text.charAt(i) - if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32)) - ch = "\u00a0" - result += ch - spaceBefore = ch == " " - } + prepareSelection: function() { + var result = prepareSelection(this.cm, false) + result.focus = this.cm.state.focused return result - } + }, - // Work around nonsense dimensions being reported for stretches of - // right-to-left text. - function buildTokenBadBidi(inner, order) { - return function(builder, text, style, startStyle, endStyle, title, css) { - style = style ? style + " cm-force-border" : "cm-force-border"; - var start = builder.pos, end = start + text.length; - for (;;) { - // Find the part that overlaps with the start of this text - for (var i = 0; i < order.length; i++) { - var part = order[i]; - if (part.to > start && part.from <= start) break; + showSelection: function(info, takeFocus) { + if (!info || !this.cm.display.view.length) { return } + if (info.focus || takeFocus) { this.showPrimarySelection() } + this.showMultipleSelections(info) + }, + + showPrimarySelection: function() { + var sel = window.getSelection(), prim = this.cm.doc.sel.primary() + var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset) + var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset) + if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad && + cmp(minPos(curAnchor, curFocus), prim.from()) == 0 && + cmp(maxPos(curAnchor, curFocus), prim.to()) == 0) + { return } + + var start = posToDOM(this.cm, prim.from()) + var end = posToDOM(this.cm, prim.to()) + if (!start && !end) { return } + + var view = this.cm.display.view + var old = sel.rangeCount && sel.getRangeAt(0) + if (!start) { + start = {node: view[0].measure.map[2], offset: 0} + } else if (!end) { // FIXME dangerously hacky + var measure = view[view.length - 1].measure + var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map + end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]} + } + + var rng + try { rng = range(start.node, start.offset, end.offset, end.node) } + catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible + if (rng) { + if (!gecko && this.cm.state.focused) { + sel.collapse(start.node, start.offset) + if (!rng.collapsed) { + sel.removeAllRanges() + sel.addRange(rng) } - if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title, css); - inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css); - startStyle = null; - text = text.slice(part.to - start); - start = part.to; - } - }; - } - - function buildCollapsedSpan(builder, size, marker, ignoreWidget) { - var widget = !ignoreWidget && marker.widgetNode; - if (widget) builder.map.push(builder.pos, builder.pos + size, widget); - if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) { - if (!widget) - widget = builder.content.appendChild(document.createElement("span")); - widget.setAttribute("cm-marker", marker.id); - } - if (widget) { - builder.cm.display.input.setUneditable(widget); - builder.content.appendChild(widget); - } - builder.pos += size; - builder.trailingSpace = false - } - - // Outputs a number of spans to make up a line, taking highlighting - // and marked text into account. - function insertLineContent(line, builder, styles) { - var spans = line.markedSpans, allText = line.text, at = 0; - if (!spans) { - for (var i = 1; i < styles.length; i+=2) - builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options)); - return; - } - - var len = allText.length, pos = 0, i = 1, text = "", style, css; - var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed; - for (;;) { - if (nextChange == pos) { // Update current marker set - spanStyle = spanEndStyle = spanStartStyle = title = css = ""; - collapsed = null; nextChange = Infinity; - var foundBookmarks = [], endStyles - for (var j = 0; j < spans.length; ++j) { - var sp = spans[j], m = sp.marker; - if (m.type == "bookmark" && sp.from == pos && m.widgetNode) { - foundBookmarks.push(m); - } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) { - if (sp.to != null && sp.to != pos && nextChange > sp.to) { - nextChange = sp.to; - spanEndStyle = ""; - } - if (m.className) spanStyle += " " + m.className; - if (m.css) css = (css ? css + ";" : "") + m.css; - if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle; - if (m.endStyle && sp.to == nextChange) (endStyles || (endStyles = [])).push(m.endStyle, sp.to) - if (m.title && !title) title = m.title; - if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)) - collapsed = sp; - } else if (sp.from > pos && nextChange > sp.from) { - nextChange = sp.from; - } - } - if (endStyles) for (var j = 0; j < endStyles.length; j += 2) - if (endStyles[j + 1] == nextChange) spanEndStyle += " " + endStyles[j] - - if (!collapsed || collapsed.from == pos) for (var j = 0; j < foundBookmarks.length; ++j) - buildCollapsedSpan(builder, 0, foundBookmarks[j]); - if (collapsed && (collapsed.from || 0) == pos) { - buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos, - collapsed.marker, collapsed.from == null); - if (collapsed.to == null) return; - if (collapsed.to == pos) collapsed = false; - } - } - if (pos >= len) break; - - var upto = Math.min(len, nextChange); - while (true) { - if (text) { - var end = pos + text.length; - if (!collapsed) { - var tokenText = end > upto ? text.slice(0, upto - pos) : text; - builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, - spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css); - } - if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;} - pos = end; - spanStartStyle = ""; - } - text = allText.slice(at, at = styles[i++]); - style = interpretTokenStyle(styles[i++], builder.cm.options); - } - } - } - - // DOCUMENT DATA STRUCTURE - - // By default, updates that start and end at the beginning of a line - // are treated specially, in order to make the association of line - // widgets and marker elements with the text behave more intuitive. - function isWholeLineUpdate(doc, change) { - return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" && - (!doc.cm || doc.cm.options.wholeLineUpdateBefore); - } - - // Perform a change on the document data structure. - function updateDoc(doc, change, markedSpans, estimateHeight) { - function spansFor(n) {return markedSpans ? markedSpans[n] : null;} - function update(line, text, spans) { - updateLine(line, text, spans, estimateHeight); - signalLater(line, "change", line, change); - } - function linesFor(start, end) { - for (var i = start, result = []; i < end; ++i) - result.push(new Line(text[i], spansFor(i), estimateHeight)); - return result; - } - - var from = change.from, to = change.to, text = change.text; - var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); - var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; - - // Adjust the line structure - if (change.full) { - doc.insert(0, linesFor(0, text.length)); - doc.remove(text.length, doc.size - text.length); - } else if (isWholeLineUpdate(doc, change)) { - // This is a whole-line replace. Treated specially to make - // sure line objects move the way they are supposed to. - var added = linesFor(0, text.length - 1); - update(lastLine, lastLine.text, lastSpans); - if (nlines) doc.remove(from.line, nlines); - if (added.length) doc.insert(from.line, added); - } else if (firstLine == lastLine) { - if (text.length == 1) { - update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); } else { - var added = linesFor(1, text.length - 1); - added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight)); - update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); - doc.insert(from.line + 1, added); + sel.removeAllRanges() + sel.addRange(rng) } - } else if (text.length == 1) { - update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)); - doc.remove(from.line + 1, nlines); - } else { - update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); - update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); - var added = linesFor(1, text.length - 1); - if (nlines > 1) doc.remove(from.line + 1, nlines - 1); - doc.insert(from.line + 1, added); + if (old && sel.anchorNode == null) { sel.addRange(old) } + else if (gecko) { this.startGracePeriod() } } + this.rememberSelection() + }, - signalLater(doc, "change", doc, change); - } + startGracePeriod: function() { + var this$1 = this; - // The document is represented as a BTree consisting of leaves, with - // chunk of lines in them, and branches, with up to ten leaves or - // other branch nodes below them. The top node is always a branch - // node, and is the document object itself (meaning it has - // additional methods and properties). - // - // All nodes have parent links. The tree is used both to go from - // line numbers to line objects, and to go from objects to numbers. - // It also indexes by height, and is used to convert between height - // and line object, and to find the total height of the document. - // - // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html + clearTimeout(this.gracePeriod) + this.gracePeriod = setTimeout(function () { + this$1.gracePeriod = false + if (this$1.selectionChanged()) + { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }) } + }, 20) + }, - function LeafChunk(lines) { - this.lines = lines; - this.parent = null; - for (var i = 0, height = 0; i < lines.length; ++i) { - lines[i].parent = this; - height += lines[i].height; + showMultipleSelections: function(info) { + removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors) + removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection) + }, + + rememberSelection: function() { + var sel = window.getSelection() + this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset + this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset + }, + + selectionInEditor: function() { + var sel = window.getSelection() + if (!sel.rangeCount) { return false } + var node = sel.getRangeAt(0).commonAncestorContainer + return contains(this.div, node) + }, + + focus: function() { + if (this.cm.options.readOnly != "nocursor") { + if (!this.selectionInEditor()) + { this.showSelection(this.prepareSelection(), true) } + this.div.focus() } - this.height = height; - } + }, + blur: function() { this.div.blur() }, + getField: function() { return this.div }, - LeafChunk.prototype = { - chunkSize: function() { return this.lines.length; }, - // Remove the n lines at offset 'at'. - removeInner: function(at, n) { - for (var i = at, e = at + n; i < e; ++i) { - var line = this.lines[i]; - this.height -= line.height; - cleanUpLine(line); - signalLater(line, "delete"); - } - this.lines.splice(at, n); - }, - // Helper used to collapse a small branch into a single leaf. - collapse: function(lines) { - lines.push.apply(lines, this.lines); - }, - // Insert the given array of lines at offset 'at', count them as - // having the given height. - insertInner: function(at, lines, height) { - this.height += height; - this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); - for (var i = 0; i < lines.length; ++i) lines[i].parent = this; - }, - // Used to iterate over a part of the tree. - iterN: function(at, n, op) { - for (var e = at + n; at < e; ++at) - if (op(this.lines[at])) return true; - } - }; + supportsTouch: function() { return true }, - function BranchChunk(children) { - this.children = children; - var size = 0, height = 0; - for (var i = 0; i < children.length; ++i) { - var ch = children[i]; - size += ch.chunkSize(); height += ch.height; - ch.parent = this; - } - this.size = size; - this.height = height; - this.parent = null; - } - - BranchChunk.prototype = { - chunkSize: function() { return this.size; }, - removeInner: function(at, n) { - this.size -= n; - for (var i = 0; i < this.children.length; ++i) { - var child = this.children[i], sz = child.chunkSize(); - if (at < sz) { - var rm = Math.min(n, sz - at), oldHeight = child.height; - child.removeInner(at, rm); - this.height -= oldHeight - child.height; - if (sz == rm) { this.children.splice(i--, 1); child.parent = null; } - if ((n -= rm) == 0) break; - at = 0; - } else at -= sz; - } - // If the result is smaller than 25 lines, ensure that it is a - // single leaf node. - if (this.size - n < 25 && - (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) { - var lines = []; - this.collapse(lines); - this.children = [new LeafChunk(lines)]; - this.children[0].parent = this; - } - }, - collapse: function(lines) { - for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines); - }, - insertInner: function(at, lines, height) { - this.size += lines.length; - this.height += height; - for (var i = 0; i < this.children.length; ++i) { - var child = this.children[i], sz = child.chunkSize(); - if (at <= sz) { - child.insertInner(at, lines, height); - if (child.lines && child.lines.length > 50) { - // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced. - // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest. - var remaining = child.lines.length % 25 + 25 - for (var pos = remaining; pos < child.lines.length;) { - var leaf = new LeafChunk(child.lines.slice(pos, pos += 25)); - child.height -= leaf.height; - this.children.splice(++i, 0, leaf); - leaf.parent = this; - } - child.lines = child.lines.slice(0, remaining); - this.maybeSpill(); - } - break; - } - at -= sz; - } - }, - // When a node has grown, check whether it should be split. - maybeSpill: function() { - if (this.children.length <= 10) return; - var me = this; - do { - var spilled = me.children.splice(me.children.length - 5, 5); - var sibling = new BranchChunk(spilled); - if (!me.parent) { // Become the parent node - var copy = new BranchChunk(me.children); - copy.parent = me; - me.children = [copy, sibling]; - me = copy; - } else { - me.size -= sibling.size; - me.height -= sibling.height; - var myIndex = indexOf(me.parent.children, me); - me.parent.children.splice(myIndex + 1, 0, sibling); - } - sibling.parent = me.parent; - } while (me.children.length > 10); - me.parent.maybeSpill(); - }, - iterN: function(at, n, op) { - for (var i = 0; i < this.children.length; ++i) { - var child = this.children[i], sz = child.chunkSize(); - if (at < sz) { - var used = Math.min(n, sz - at); - if (child.iterN(at, used, op)) return true; - if ((n -= used) == 0) break; - at = 0; - } else at -= sz; - } - } - }; - - var nextDocId = 0; - var Doc = CodeMirror.Doc = function(text, mode, firstLine, lineSep) { - if (!(this instanceof Doc)) return new Doc(text, mode, firstLine, lineSep); - if (firstLine == null) firstLine = 0; - - BranchChunk.call(this, [new LeafChunk([new Line("", null)])]); - this.first = firstLine; - this.scrollTop = this.scrollLeft = 0; - this.cantEdit = false; - this.cleanGeneration = 1; - this.frontier = firstLine; - var start = Pos(firstLine, 0); - this.sel = simpleSelection(start); - this.history = new History(null); - this.id = ++nextDocId; - this.modeOption = mode; - this.lineSep = lineSep; - this.extend = false; - - if (typeof text == "string") text = this.splitLines(text); - updateDoc(this, {from: start, to: start, text: text}); - setSelection(this, simpleSelection(start), sel_dontScroll); - }; - - Doc.prototype = createObj(BranchChunk.prototype, { - constructor: Doc, - // Iterate over the document. Supports two forms -- with only one - // argument, it calls that for each line in the document. With - // three, it iterates over the range given by the first two (with - // the second being non-inclusive). - iter: function(from, to, op) { - if (op) this.iterN(from - this.first, to - from, op); - else this.iterN(this.first, this.first + this.size, from); - }, - - // Non-public interface for adding and removing lines. - insert: function(at, lines) { - var height = 0; - for (var i = 0; i < lines.length; ++i) height += lines[i].height; - this.insertInner(at - this.first, lines, height); - }, - remove: function(at, n) { this.removeInner(at - this.first, n); }, - - // From here, the methods are part of the public interface. Most - // are also available from CodeMirror (editor) instances. - - getValue: function(lineSep) { - var lines = getLines(this, this.first, this.first + this.size); - if (lineSep === false) return lines; - return lines.join(lineSep || this.lineSeparator()); - }, - setValue: docMethodOp(function(code) { - var top = Pos(this.first, 0), last = this.first + this.size - 1; - makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length), - text: this.splitLines(code), origin: "setValue", full: true}, true); - setSelection(this, simpleSelection(top)); - }), - replaceRange: function(code, from, to, origin) { - from = clipPos(this, from); - to = to ? clipPos(this, to) : from; - replaceRange(this, code, from, to, origin); - }, - getRange: function(from, to, lineSep) { - var lines = getBetween(this, clipPos(this, from), clipPos(this, to)); - if (lineSep === false) return lines; - return lines.join(lineSep || this.lineSeparator()); - }, - - getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;}, - - getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);}, - getLineNumber: function(line) {return lineNo(line);}, - - getLineHandleVisualStart: function(line) { - if (typeof line == "number") line = getLine(this, line); - return visualLine(line); - }, - - lineCount: function() {return this.size;}, - firstLine: function() {return this.first;}, - lastLine: function() {return this.first + this.size - 1;}, - - clipPos: function(pos) {return clipPos(this, pos);}, - - getCursor: function(start) { - var range = this.sel.primary(), pos; - if (start == null || start == "head") pos = range.head; - else if (start == "anchor") pos = range.anchor; - else if (start == "end" || start == "to" || start === false) pos = range.to(); - else pos = range.from(); - return pos; - }, - listSelections: function() { return this.sel.ranges; }, - somethingSelected: function() {return this.sel.somethingSelected();}, - - setCursor: docMethodOp(function(line, ch, options) { - setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options); - }), - setSelection: docMethodOp(function(anchor, head, options) { - setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options); - }), - extendSelection: docMethodOp(function(head, other, options) { - extendSelection(this, clipPos(this, head), other && clipPos(this, other), options); - }), - extendSelections: docMethodOp(function(heads, options) { - extendSelections(this, clipPosArray(this, heads), options); - }), - extendSelectionsBy: docMethodOp(function(f, options) { - var heads = map(this.sel.ranges, f); - extendSelections(this, clipPosArray(this, heads), options); - }), - setSelections: docMethodOp(function(ranges, primary, options) { - if (!ranges.length) return; - for (var i = 0, out = []; i < ranges.length; i++) - out[i] = new Range(clipPos(this, ranges[i].anchor), - clipPos(this, ranges[i].head)); - if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex); - setSelection(this, normalizeSelection(out, primary), options); - }), - addSelection: docMethodOp(function(anchor, head, options) { - var ranges = this.sel.ranges.slice(0); - ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor))); - setSelection(this, normalizeSelection(ranges, ranges.length - 1), options); - }), - - getSelection: function(lineSep) { - var ranges = this.sel.ranges, lines; - for (var i = 0; i < ranges.length; i++) { - var sel = getBetween(this, ranges[i].from(), ranges[i].to()); - lines = lines ? lines.concat(sel) : sel; - } - if (lineSep === false) return lines; - else return lines.join(lineSep || this.lineSeparator()); - }, - getSelections: function(lineSep) { - var parts = [], ranges = this.sel.ranges; - for (var i = 0; i < ranges.length; i++) { - var sel = getBetween(this, ranges[i].from(), ranges[i].to()); - if (lineSep !== false) sel = sel.join(lineSep || this.lineSeparator()); - parts[i] = sel; - } - return parts; - }, - replaceSelection: function(code, collapse, origin) { - var dup = []; - for (var i = 0; i < this.sel.ranges.length; i++) - dup[i] = code; - this.replaceSelections(dup, collapse, origin || "+input"); - }, - replaceSelections: docMethodOp(function(code, collapse, origin) { - var changes = [], sel = this.sel; - for (var i = 0; i < sel.ranges.length; i++) { - var range = sel.ranges[i]; - changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin}; - } - var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse); - for (var i = changes.length - 1; i >= 0; i--) - makeChange(this, changes[i]); - if (newSel) setSelectionReplaceHistory(this, newSel); - else if (this.cm) ensureCursorVisible(this.cm); - }), - undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}), - redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}), - undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}), - redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}), - - setExtending: function(val) {this.extend = val;}, - getExtending: function() {return this.extend;}, - - historySize: function() { - var hist = this.history, done = 0, undone = 0; - for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done; - for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone; - return {undo: done, redo: undone}; - }, - clearHistory: function() {this.history = new History(this.history.maxGeneration);}, - - markClean: function() { - this.cleanGeneration = this.changeGeneration(true); - }, - changeGeneration: function(forceSplit) { - if (forceSplit) - this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; - return this.history.generation; - }, - isClean: function (gen) { - return this.history.generation == (gen || this.cleanGeneration); - }, - - getHistory: function() { - return {done: copyHistoryArray(this.history.done), - undone: copyHistoryArray(this.history.undone)}; - }, - setHistory: function(histData) { - var hist = this.history = new History(this.history.maxGeneration); - hist.done = copyHistoryArray(histData.done.slice(0), null, true); - hist.undone = copyHistoryArray(histData.undone.slice(0), null, true); - }, - - addLineClass: docMethodOp(function(handle, where, cls) { - return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) { - var prop = where == "text" ? "textClass" - : where == "background" ? "bgClass" - : where == "gutter" ? "gutterClass" : "wrapClass"; - if (!line[prop]) line[prop] = cls; - else if (classTest(cls).test(line[prop])) return false; - else line[prop] += " " + cls; - return true; - }); - }), - removeLineClass: docMethodOp(function(handle, where, cls) { - return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) { - var prop = where == "text" ? "textClass" - : where == "background" ? "bgClass" - : where == "gutter" ? "gutterClass" : "wrapClass"; - var cur = line[prop]; - if (!cur) return false; - else if (cls == null) line[prop] = null; - else { - var found = cur.match(classTest(cls)); - if (!found) return false; - var end = found.index + found[0].length; - line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null; - } - return true; - }); - }), - - addLineWidget: docMethodOp(function(handle, node, options) { - return addLineWidget(this, handle, node, options); - }), - removeLineWidget: function(widget) { widget.clear(); }, - - markText: function(from, to, options) { - return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range"); - }, - setBookmark: function(pos, options) { - var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options), - insertLeft: options && options.insertLeft, - clearWhenEmpty: false, shared: options && options.shared, - handleMouseEvents: options && options.handleMouseEvents}; - pos = clipPos(this, pos); - return markText(this, pos, pos, realOpts, "bookmark"); - }, - findMarksAt: function(pos) { - pos = clipPos(this, pos); - var markers = [], spans = getLine(this, pos.line).markedSpans; - if (spans) for (var i = 0; i < spans.length; ++i) { - var span = spans[i]; - if ((span.from == null || span.from <= pos.ch) && - (span.to == null || span.to >= pos.ch)) - markers.push(span.marker.parent || span.marker); - } - return markers; - }, - findMarks: function(from, to, filter) { - from = clipPos(this, from); to = clipPos(this, to); - var found = [], lineNo = from.line; - this.iter(from.line, to.line + 1, function(line) { - var spans = line.markedSpans; - if (spans) for (var i = 0; i < spans.length; i++) { - var span = spans[i]; - if (!(span.to != null && lineNo == from.line && from.ch >= span.to || - span.from == null && lineNo != from.line || - span.from != null && lineNo == to.line && span.from >= to.ch) && - (!filter || filter(span.marker))) - found.push(span.marker.parent || span.marker); - } - ++lineNo; - }); - return found; - }, - getAllMarks: function() { - var markers = []; - this.iter(function(line) { - var sps = line.markedSpans; - if (sps) for (var i = 0; i < sps.length; ++i) - if (sps[i].from != null) markers.push(sps[i].marker); - }); - return markers; - }, - - posFromIndex: function(off) { - var ch, lineNo = this.first, sepSize = this.lineSeparator().length; - this.iter(function(line) { - var sz = line.text.length + sepSize; - if (sz > off) { ch = off; return true; } - off -= sz; - ++lineNo; - }); - return clipPos(this, Pos(lineNo, ch)); - }, - indexFromPos: function (coords) { - coords = clipPos(this, coords); - var index = coords.ch; - if (coords.line < this.first || coords.ch < 0) return 0; - var sepSize = this.lineSeparator().length; - this.iter(this.first, coords.line, function (line) { - index += line.text.length + sepSize; - }); - return index; - }, - - copy: function(copyHistory) { - var doc = new Doc(getLines(this, this.first, this.first + this.size), - this.modeOption, this.first, this.lineSep); - doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; - doc.sel = this.sel; - doc.extend = false; - if (copyHistory) { - doc.history.undoDepth = this.history.undoDepth; - doc.setHistory(this.getHistory()); - } - return doc; - }, - - linkedDoc: function(options) { - if (!options) options = {}; - var from = this.first, to = this.first + this.size; - if (options.from != null && options.from > from) from = options.from; - if (options.to != null && options.to < to) to = options.to; - var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep); - if (options.sharedHist) copy.history = this.history; - (this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist}); - copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]; - copySharedMarkers(copy, findSharedMarkers(this)); - return copy; - }, - unlinkDoc: function(other) { - if (other instanceof CodeMirror) other = other.doc; - if (this.linked) for (var i = 0; i < this.linked.length; ++i) { - var link = this.linked[i]; - if (link.doc != other) continue; - this.linked.splice(i, 1); - other.unlinkDoc(this); - detachSharedMarkers(findSharedMarkers(this)); - break; - } - // If the histories were shared, split them again - if (other.history == this.history) { - var splitIds = [other.id]; - linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true); - other.history = new History(null); - other.history.done = copyHistoryArray(this.history.done, splitIds); - other.history.undone = copyHistoryArray(this.history.undone, splitIds); - } - }, - iterLinkedDocs: function(f) {linkedDocs(this, f);}, - - getMode: function() {return this.mode;}, - getEditor: function() {return this.cm;}, - - splitLines: function(str) { - if (this.lineSep) return str.split(this.lineSep); - return splitLinesAuto(str); - }, - lineSeparator: function() { return this.lineSep || "\n"; } - }); - - // Public alias. - Doc.prototype.eachLine = Doc.prototype.iter; - - // Set up methods on CodeMirror's prototype to redirect to the editor's document. - var dontDelegate = "iter insert remove copy getEditor constructor".split(" "); - for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) - CodeMirror.prototype[prop] = (function(method) { - return function() {return method.apply(this.doc, arguments);}; - })(Doc.prototype[prop]); - - eventMixin(Doc); - - // Call f for all linked documents. - function linkedDocs(doc, f, sharedHistOnly) { - function propagate(doc, skip, sharedHist) { - if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) { - var rel = doc.linked[i]; - if (rel.doc == skip) continue; - var shared = sharedHist && rel.sharedHist; - if (sharedHistOnly && !shared) continue; - f(rel.doc, shared); - propagate(rel.doc, doc, shared); - } - } - propagate(doc, null, true); - } - - // Attach a document to an editor. - function attachDoc(cm, doc) { - if (doc.cm) throw new Error("This document is already in use."); - cm.doc = doc; - doc.cm = cm; - estimateLineHeights(cm); - loadMode(cm); - if (!cm.options.lineWrapping) findMaxLine(cm); - cm.options.mode = doc.modeOption; - regChange(cm); - } - - // LINE UTILITIES - - // Find the line object corresponding to the given line number. - function getLine(doc, n) { - n -= doc.first; - if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document."); - for (var chunk = doc; !chunk.lines;) { - for (var i = 0;; ++i) { - var child = chunk.children[i], sz = child.chunkSize(); - if (n < sz) { chunk = child; break; } - n -= sz; - } - } - return chunk.lines[n]; - } - - // Get the part of a document between two positions, as an array of - // strings. - function getBetween(doc, start, end) { - var out = [], n = start.line; - doc.iter(start.line, end.line + 1, function(line) { - var text = line.text; - if (n == end.line) text = text.slice(0, end.ch); - if (n == start.line) text = text.slice(start.ch); - out.push(text); - ++n; - }); - return out; - } - // Get the lines between from and to, as array of strings. - function getLines(doc, from, to) { - var out = []; - doc.iter(from, to, function(line) { out.push(line.text); }); - return out; - } - - // Update the height of a line, propagating the height change - // upwards to parent nodes. - function updateLineHeight(line, height) { - var diff = height - line.height; - if (diff) for (var n = line; n; n = n.parent) n.height += diff; - } - - // Given a line object, find its line number by walking up through - // its parent links. - function lineNo(line) { - if (line.parent == null) return null; - var cur = line.parent, no = indexOf(cur.lines, line); - for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { - for (var i = 0;; ++i) { - if (chunk.children[i] == cur) break; - no += chunk.children[i].chunkSize(); - } - } - return no + cur.first; - } - - // Find the line at the given vertical position, using the height - // information in the document tree. - function lineAtHeight(chunk, h) { - var n = chunk.first; - outer: do { - for (var i = 0; i < chunk.children.length; ++i) { - var child = chunk.children[i], ch = child.height; - if (h < ch) { chunk = child; continue outer; } - h -= ch; - n += child.chunkSize(); - } - return n; - } while (!chunk.lines); - for (var i = 0; i < chunk.lines.length; ++i) { - var line = chunk.lines[i], lh = line.height; - if (h < lh) break; - h -= lh; - } - return n + i; - } - - - // Find the height above the given line. - function heightAtLine(lineObj) { - lineObj = visualLine(lineObj); - - var h = 0, chunk = lineObj.parent; - for (var i = 0; i < chunk.lines.length; ++i) { - var line = chunk.lines[i]; - if (line == lineObj) break; - else h += line.height; - } - for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { - for (var i = 0; i < p.children.length; ++i) { - var cur = p.children[i]; - if (cur == chunk) break; - else h += cur.height; - } - } - return h; - } - - // Get the bidi ordering for the given line (and cache it). Returns - // false for lines that are fully left-to-right, and an array of - // BidiSpan objects otherwise. - function getOrder(line) { - var order = line.order; - if (order == null) order = line.order = bidiOrdering(line.text); - return order; - } - - // HISTORY - - function History(startGen) { - // Arrays of change events and selections. Doing something adds an - // event to done and clears undo. Undoing moves events from done - // to undone, redoing moves them in the other direction. - this.done = []; this.undone = []; - this.undoDepth = Infinity; - // Used to track when changes can be merged into a single undo - // event - this.lastModTime = this.lastSelTime = 0; - this.lastOp = this.lastSelOp = null; - this.lastOrigin = this.lastSelOrigin = null; - // Used by the isClean() method - this.generation = this.maxGeneration = startGen || 1; - } - - // Create a history change event from an updateDoc-style change - // object. - function historyChangeFromChange(doc, change) { - var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}; - attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); - linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true); - return histChange; - } - - // Pop all selection events off the end of a history array. Stop at - // a change event. - function clearSelectionEvents(array) { - while (array.length) { - var last = lst(array); - if (last.ranges) array.pop(); - else break; - } - } - - // Find the top change event in the history. Pop off selection - // events that are in the way. - function lastChangeEvent(hist, force) { - if (force) { - clearSelectionEvents(hist.done); - return lst(hist.done); - } else if (hist.done.length && !lst(hist.done).ranges) { - return lst(hist.done); - } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) { - hist.done.pop(); - return lst(hist.done); - } - } - - // Register a change in the history. Merges changes that are within - // a single operation, ore are close together with an origin that - // allows merging (starting with "+") into a single event. - function addChangeToHistory(doc, change, selAfter, opId) { - var hist = doc.history; - hist.undone.length = 0; - var time = +new Date, cur; - - if ((hist.lastOp == opId || - hist.lastOrigin == change.origin && change.origin && - ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) || - change.origin.charAt(0) == "*")) && - (cur = lastChangeEvent(hist, hist.lastOp == opId))) { - // Merge this change into the last event - var last = lst(cur.changes); - if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) { - // Optimized case for simple insertion -- don't want to add - // new changesets for every character typed - last.to = changeEnd(change); - } else { - // Add new sub-event - cur.changes.push(historyChangeFromChange(doc, change)); - } - } else { - // Can not be merged, start a new event. - var before = lst(hist.done); - if (!before || !before.ranges) - pushSelectionToHistory(doc.sel, hist.done); - cur = {changes: [historyChangeFromChange(doc, change)], - generation: hist.generation}; - hist.done.push(cur); - while (hist.done.length > hist.undoDepth) { - hist.done.shift(); - if (!hist.done[0].ranges) hist.done.shift(); - } - } - hist.done.push(selAfter); - hist.generation = ++hist.maxGeneration; - hist.lastModTime = hist.lastSelTime = time; - hist.lastOp = hist.lastSelOp = opId; - hist.lastOrigin = hist.lastSelOrigin = change.origin; - - if (!last) signal(doc, "historyAdded"); - } - - function selectionEventCanBeMerged(doc, origin, prev, sel) { - var ch = origin.charAt(0); - return ch == "*" || - ch == "+" && - prev.ranges.length == sel.ranges.length && - prev.somethingSelected() == sel.somethingSelected() && - new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500); - } - - // Called whenever the selection changes, sets the new selection as - // the pending selection in the history, and pushes the old pending - // selection into the 'done' array when it was significantly - // different (in number of selected ranges, emptiness, or time). - function addSelectionToHistory(doc, sel, opId, options) { - var hist = doc.history, origin = options && options.origin; - - // A new event is started when the previous origin does not match - // the current, or the origins don't allow matching. Origins - // starting with * are always merged, those starting with + are - // merged when similar and close together in time. - if (opId == hist.lastSelOp || - (origin && hist.lastSelOrigin == origin && - (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin || - selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))) - hist.done[hist.done.length - 1] = sel; + receivedFocus: function() { + var input = this + if (this.selectionInEditor()) + { this.pollSelection() } else - pushSelectionToHistory(sel, hist.done); + { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }) } - hist.lastSelTime = +new Date; - hist.lastSelOrigin = origin; - hist.lastSelOp = opId; - if (options && options.clearRedo !== false) - clearSelectionEvents(hist.undone); - } - - function pushSelectionToHistory(sel, dest) { - var top = lst(dest); - if (!(top && top.ranges && top.equals(sel))) - dest.push(sel); - } - - // Used to store marked span information in the history. - function attachLocalSpans(doc, change, from, to) { - var existing = change["spans_" + doc.id], n = 0; - doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) { - if (line.markedSpans) - (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; - ++n; - }); - } - - // When un/re-doing restores text containing marked spans, those - // that have been explicitly cleared should not be restored. - function removeClearedSpans(spans) { - if (!spans) return null; - for (var i = 0, out; i < spans.length; ++i) { - if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); } - else if (out) out.push(spans[i]); - } - return !out ? spans : out.length ? out : null; - } - - // Retrieve and filter the old marked spans stored in a change event. - function getOldSpans(doc, change) { - var found = change["spans_" + doc.id]; - if (!found) return null; - for (var i = 0, nw = []; i < change.text.length; ++i) - nw.push(removeClearedSpans(found[i])); - return nw; - } - - // Used both to provide a JSON-safe object in .getHistory, and, when - // detaching a document, to split the history in two - function copyHistoryArray(events, newGroup, instantiateSel) { - for (var i = 0, copy = []; i < events.length; ++i) { - var event = events[i]; - if (event.ranges) { - copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event); - continue; - } - var changes = event.changes, newChanges = []; - copy.push({changes: newChanges}); - for (var j = 0; j < changes.length; ++j) { - var change = changes[j], m; - newChanges.push({from: change.from, to: change.to, text: change.text}); - if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) { - if (indexOf(newGroup, Number(m[1])) > -1) { - lst(newChanges)[prop] = change[prop]; - delete change[prop]; - } - } + function poll() { + if (input.cm.state.focused) { + input.pollSelection() + input.polling.set(input.cm.options.pollInterval, poll) } } - return copy; - } + this.polling.set(this.cm.options.pollInterval, poll) + }, - // Rebasing/resetting history to deal with externally-sourced changes + selectionChanged: function() { + var sel = window.getSelection() + return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset || + sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset + }, - function rebaseHistSelSingle(pos, from, to, diff) { - if (to < pos.line) { - pos.line += diff; - } else if (from < pos.line) { - pos.line = from; - pos.ch = 0; + pollSelection: function() { + if (!this.composing && this.readDOMTimeout == null && !this.gracePeriod && this.selectionChanged()) { + var sel = window.getSelection(), cm = this.cm + this.rememberSelection() + var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset) + var head = domToPos(cm, sel.focusNode, sel.focusOffset) + if (anchor && head) { runInOp(cm, function () { + setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll) + if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true } + }) } } - } + }, - // Tries to rebase an array of history events given a change in the - // document. If the change touches the same lines as the event, the - // event, and everything 'behind' it, is discarded. If the change is - // before the event, the event's positions are updated. Uses a - // copy-on-write scheme for the positions, to avoid having to - // reallocate them all on every rebase, but also avoid problems with - // shared position objects being unsafely updated. - function rebaseHistArray(array, from, to, diff) { - for (var i = 0; i < array.length; ++i) { - var sub = array[i], ok = true; - if (sub.ranges) { - if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; } - for (var j = 0; j < sub.ranges.length; j++) { - rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff); - rebaseHistSelSingle(sub.ranges[j].head, from, to, diff); - } - continue; - } - for (var j = 0; j < sub.changes.length; ++j) { - var cur = sub.changes[j]; - if (to < cur.from.line) { - cur.from = Pos(cur.from.line + diff, cur.from.ch); - cur.to = Pos(cur.to.line + diff, cur.to.ch); - } else if (from <= cur.to.line) { - ok = false; - break; - } - } - if (!ok) { - array.splice(0, i + 1); - i = 0; - } + pollContent: function() { + if (this.readDOMTimeout != null) { + clearTimeout(this.readDOMTimeout) + this.readDOMTimeout = null } - } - function rebaseHist(hist, change) { - var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1; - rebaseHistArray(hist.done, from, to, diff); - rebaseHistArray(hist.undone, from, to, diff); - } + var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary() + var from = sel.from(), to = sel.to() + if (from.ch == 0 && from.line > cm.firstLine()) + { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length) } + if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine()) + { to = Pos(to.line + 1, 0) } + if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false } - // EVENT UTILITIES - - // Due to the fact that we still support jurassic IE versions, some - // compatibility wrappers are needed. - - var e_preventDefault = CodeMirror.e_preventDefault = function(e) { - if (e.preventDefault) e.preventDefault(); - else e.returnValue = false; - }; - var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) { - if (e.stopPropagation) e.stopPropagation(); - else e.cancelBubble = true; - }; - function e_defaultPrevented(e) { - return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false; - } - var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);}; - - function e_target(e) {return e.target || e.srcElement;} - function e_button(e) { - var b = e.which; - if (b == null) { - if (e.button & 1) b = 1; - else if (e.button & 2) b = 3; - else if (e.button & 4) b = 2; - } - if (mac && e.ctrlKey && b == 1) b = 3; - return b; - } - - // EVENT HANDLING - - // Lightweight event framework. on/off also work on DOM nodes, - // registering native DOM handlers. - - var on = CodeMirror.on = function(emitter, type, f) { - if (emitter.addEventListener) - emitter.addEventListener(type, f, false); - else if (emitter.attachEvent) - emitter.attachEvent("on" + type, f); - else { - var map = emitter._handlers || (emitter._handlers = {}); - var arr = map[type] || (map[type] = []); - arr.push(f); - } - }; - - var noHandlers = [] - function getHandlers(emitter, type, copy) { - var arr = emitter._handlers && emitter._handlers[type] - if (copy) return arr && arr.length > 0 ? arr.slice() : noHandlers - else return arr || noHandlers - } - - var off = CodeMirror.off = function(emitter, type, f) { - if (emitter.removeEventListener) - emitter.removeEventListener(type, f, false); - else if (emitter.detachEvent) - emitter.detachEvent("on" + type, f); - else { - var handlers = getHandlers(emitter, type, false) - for (var i = 0; i < handlers.length; ++i) - if (handlers[i] == f) { handlers.splice(i, 1); break; } - } - }; - - var signal = CodeMirror.signal = function(emitter, type /*, values...*/) { - var handlers = getHandlers(emitter, type, true) - if (!handlers.length) return; - var args = Array.prototype.slice.call(arguments, 2); - for (var i = 0; i < handlers.length; ++i) handlers[i].apply(null, args); - }; - - var orphanDelayedCallbacks = null; - - // Often, we want to signal events at a point where we are in the - // middle of some work, but don't want the handler to start calling - // other methods on the editor, which might be in an inconsistent - // state or simply not expect any other events to happen. - // signalLater looks whether there are any handlers, and schedules - // them to be executed when the last operation ends, or, if no - // operation is active, when a timeout fires. - function signalLater(emitter, type /*, values...*/) { - var arr = getHandlers(emitter, type, false) - if (!arr.length) return; - var args = Array.prototype.slice.call(arguments, 2), list; - if (operationGroup) { - list = operationGroup.delayedCallbacks; - } else if (orphanDelayedCallbacks) { - list = orphanDelayedCallbacks; + var fromIndex, fromLine, fromNode + if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) { + fromLine = lineNo(display.view[0].line) + fromNode = display.view[0].node } else { - list = orphanDelayedCallbacks = []; - setTimeout(fireOrphanDelayed, 0); + fromLine = lineNo(display.view[fromIndex].line) + fromNode = display.view[fromIndex - 1].node.nextSibling } - function bnd(f) {return function(){f.apply(null, args);};}; - for (var i = 0; i < arr.length; ++i) - list.push(bnd(arr[i])); - } - - function fireOrphanDelayed() { - var delayed = orphanDelayedCallbacks; - orphanDelayedCallbacks = null; - for (var i = 0; i < delayed.length; ++i) delayed[i](); - } - - // The DOM events that CodeMirror handles can be overridden by - // registering a (non-DOM) handler on the editor for the event name, - // and preventDefault-ing the event in that handler. - function signalDOMEvent(cm, e, override) { - if (typeof e == "string") - e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; - signal(cm, override || e.type, cm, e); - return e_defaultPrevented(e) || e.codemirrorIgnore; - } - - function signalCursorActivity(cm) { - var arr = cm._handlers && cm._handlers.cursorActivity; - if (!arr) return; - var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []); - for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1) - set.push(arr[i]); - } - - function hasHandler(emitter, type) { - return getHandlers(emitter, type).length > 0 - } - - // Add on and off methods to a constructor's prototype, to make - // registering events on such objects more convenient. - function eventMixin(ctor) { - ctor.prototype.on = function(type, f) {on(this, type, f);}; - ctor.prototype.off = function(type, f) {off(this, type, f);}; - } - - // MISC UTILITIES - - // Number of pixels added to scroller and sizer to hide scrollbar - var scrollerGap = 30; - - // Returned or thrown by various protocols to signal 'I'm not - // handling this'. - var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}}; - - // Reused option objects for setSelection & friends - var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"}; - - function Delayed() {this.id = null;} - Delayed.prototype.set = function(ms, f) { - clearTimeout(this.id); - this.id = setTimeout(f, ms); - }; - - // Counts the column offset in a string, taking tabs into account. - // Used mostly to find indentation. - var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) { - if (end == null) { - end = string.search(/[^\s\u00a0]/); - if (end == -1) end = string.length; - } - for (var i = startIndex || 0, n = startValue || 0;;) { - var nextTab = string.indexOf("\t", i); - if (nextTab < 0 || nextTab >= end) - return n + (end - i); - n += nextTab - i; - n += tabSize - (n % tabSize); - i = nextTab + 1; - } - }; - - // The inverse of countColumn -- find the offset that corresponds to - // a particular column. - var findColumn = CodeMirror.findColumn = function(string, goal, tabSize) { - for (var pos = 0, col = 0;;) { - var nextTab = string.indexOf("\t", pos); - if (nextTab == -1) nextTab = string.length; - var skipped = nextTab - pos; - if (nextTab == string.length || col + skipped >= goal) - return pos + Math.min(skipped, goal - col); - col += nextTab - pos; - col += tabSize - (col % tabSize); - pos = nextTab + 1; - if (col >= goal) return pos; - } - } - - var spaceStrs = [""]; - function spaceStr(n) { - while (spaceStrs.length <= n) - spaceStrs.push(lst(spaceStrs) + " "); - return spaceStrs[n]; - } - - function lst(arr) { return arr[arr.length-1]; } - - var selectInput = function(node) { node.select(); }; - if (ios) // Mobile Safari apparently has a bug where select() is broken. - selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; - else if (ie) // Suppress mysterious IE10 errors - selectInput = function(node) { try { node.select(); } catch(_e) {} }; - - function indexOf(array, elt) { - for (var i = 0; i < array.length; ++i) - if (array[i] == elt) return i; - return -1; - } - function map(array, f) { - var out = []; - for (var i = 0; i < array.length; i++) out[i] = f(array[i], i); - return out; - } - - function nothing() {} - - function createObj(base, props) { - var inst; - if (Object.create) { - inst = Object.create(base); + var toIndex = findViewIndex(cm, to.line) + var toLine, toNode + if (toIndex == display.view.length - 1) { + toLine = display.viewTo - 1 + toNode = display.lineDiv.lastChild } else { - nothing.prototype = base; - inst = new nothing(); + toLine = lineNo(display.view[toIndex + 1].line) - 1 + toNode = display.view[toIndex + 1].node.previousSibling } - if (props) copyObj(props, inst); - return inst; - }; - function copyObj(obj, target, overwrite) { - if (!target) target = {}; - for (var prop in obj) - if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop))) - target[prop] = obj[prop]; - return target; - } - - function bind(f) { - var args = Array.prototype.slice.call(arguments, 1); - return function(){return f.apply(null, args);}; - } - - var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; - var isWordCharBasic = CodeMirror.isWordChar = function(ch) { - return /\w/.test(ch) || ch > "\x80" && - (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)); - }; - function isWordChar(ch, helper) { - if (!helper) return isWordCharBasic(ch); - if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true; - return helper.test(ch); - } - - function isEmpty(obj) { - for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false; - return true; - } - - // Extending unicode characters. A series of a non-extending char + - // any number of extending chars is treated as a single unit as far - // as editing and measuring is concerned. This is not fully correct, - // since some scripts/fonts/browsers also treat other configurations - // of code points as a group. - var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/; - function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); } - - // DOM UTILITIES - - function elt(tag, content, className, style) { - var e = document.createElement(tag); - if (className) e.className = className; - if (style) e.style.cssText = style; - if (typeof content == "string") e.appendChild(document.createTextNode(content)); - else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]); - return e; - } - - var range; - if (document.createRange) range = function(node, start, end, endNode) { - var r = document.createRange(); - r.setEnd(endNode || node, end); - r.setStart(node, start); - return r; - }; - else range = function(node, start, end) { - var r = document.body.createTextRange(); - try { r.moveToElementText(node.parentNode); } - catch(e) { return r; } - r.collapse(true); - r.moveEnd("character", end); - r.moveStart("character", start); - return r; - }; - - function removeChildren(e) { - for (var count = e.childNodes.length; count > 0; --count) - e.removeChild(e.firstChild); - return e; - } - - function removeChildrenAndAdd(parent, e) { - return removeChildren(parent).appendChild(e); - } - - var contains = CodeMirror.contains = function(parent, child) { - if (child.nodeType == 3) // Android browser always returns false when child is a textnode - child = child.parentNode; - if (parent.contains) - return parent.contains(child); - do { - if (child.nodeType == 11) child = child.host; - if (child == parent) return true; - } while (child = child.parentNode); - }; - - function activeElt() { - var activeElement = document.activeElement; - while (activeElement && activeElement.root && activeElement.root.activeElement) - activeElement = activeElement.root.activeElement; - return activeElement; - } - // Older versions of IE throws unspecified error when touching - // document.activeElement in some cases (during loading, in iframe) - if (ie && ie_version < 11) activeElt = function() { - try { return document.activeElement; } - catch(e) { return document.body; } - }; - - function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*"); } - var rmClass = CodeMirror.rmClass = function(node, cls) { - var current = node.className; - var match = classTest(cls).exec(current); - if (match) { - var after = current.slice(match.index + match[0].length); - node.className = current.slice(0, match.index) + (after ? match[1] + after : ""); + if (!fromNode) { return false } + var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine)) + var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length)) + while (newText.length > 1 && oldText.length > 1) { + if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine-- } + else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++ } + else { break } } - }; - var addClass = CodeMirror.addClass = function(node, cls) { - var current = node.className; - if (!classTest(cls).test(current)) node.className += (current ? " " : "") + cls; - }; - function joinClasses(a, b) { - var as = a.split(" "); - for (var i = 0; i < as.length; i++) - if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i]; - return b; + + var cutFront = 0, cutEnd = 0 + var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length) + while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront)) + { ++cutFront } + var newBot = lst(newText), oldBot = lst(oldText) + var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0), + oldBot.length - (oldText.length == 1 ? cutFront : 0)) + while (cutEnd < maxCutEnd && + newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) + { ++cutEnd } + + newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "") + newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "") + + var chFrom = Pos(fromLine, cutFront) + var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0) + if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) { + replaceRange(cm.doc, newText, chFrom, chTo, "+input") + return true + } + }, + + ensurePolled: function() { + this.forceCompositionEnd() + }, + reset: function() { + this.forceCompositionEnd() + }, + forceCompositionEnd: function() { + if (!this.composing) { return } + this.composing = null + if (!this.pollContent()) { regChange(this.cm) } + this.div.blur() + this.div.focus() + }, + readFromDOMSoon: function() { + var this$1 = this; + + if (this.readDOMTimeout != null) { return } + this.readDOMTimeout = setTimeout(function () { + this$1.readDOMTimeout = null + if (this$1.composing) { return } + if (this$1.cm.isReadOnly() || !this$1.pollContent()) + { runInOp(this$1.cm, function () { return regChange(this$1.cm); }) } + }, 80) + }, + + setUneditable: function(node) { + node.contentEditable = "false" + }, + + onKeyPress: function(e) { + e.preventDefault() + if (!this.cm.isReadOnly()) + { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0) } + }, + + readOnlyChanged: function(val) { + this.div.contentEditable = String(val != "nocursor") + }, + + onContextMenu: nothing, + resetPosition: nothing, + + needsContentAttribute: true + }, ContentEditableInput.prototype) + +function posToDOM(cm, pos) { + var view = findViewForLine(cm, pos.line) + if (!view || view.hidden) { return null } + var line = getLine(cm.doc, pos.line) + var info = mapFromLineView(view, line, pos.line) + + var order = getOrder(line), side = "left" + if (order) { + var partPos = getBidiPartAt(order, pos.ch) + side = partPos % 2 ? "right" : "left" } + var result = nodeAndOffsetInLineMap(info.map, pos.ch, side) + result.offset = result.collapse == "right" ? result.end : result.start + return result +} - // WINDOW-WIDE EVENTS +function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos } - // These must be handled carefully, because naively registering a - // handler for each editor will cause the editors to never be - // garbage collected. +function domTextBetween(cm, from, to, fromLine, toLine) { + var text = "", closing = false, lineSep = cm.doc.lineSeparator() + function recognizeMarker(id) { return function (marker) { return marker.id == id; } } + function walk(node) { + if (node.nodeType == 1) { + var cmText = node.getAttribute("cm-text") + if (cmText != null) { + if (cmText == "") { text += node.textContent.replace(/\u200b/g, "") } + else { text += cmText } + return + } + var markerID = node.getAttribute("cm-marker"), range + if (markerID) { + var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID)) + if (found.length && (range = found[0].find())) + { text += getBetween(cm.doc, range.from, range.to).join(lineSep) } + return + } + if (node.getAttribute("contenteditable") == "false") { return } + for (var i = 0; i < node.childNodes.length; i++) + { walk(node.childNodes[i]) } + if (/^(pre|div|p)$/i.test(node.nodeName)) + { closing = true } + } else if (node.nodeType == 3) { + var val = node.nodeValue + if (!val) { return } + if (closing) { + text += lineSep + closing = false + } + text += val + } + } + for (;;) { + walk(from) + if (from == to) { break } + from = from.nextSibling + } + return text +} - function forEachCodeMirror(f) { - if (!document.body.getElementsByClassName) return; - var byClass = document.body.getElementsByClassName("CodeMirror"); - for (var i = 0; i < byClass.length; i++) { - var cm = byClass[i].CodeMirror; - if (cm) f(cm); +function domToPos(cm, node, offset) { + var lineNode + if (node == cm.display.lineDiv) { + lineNode = cm.display.lineDiv.childNodes[offset] + if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) } + node = null; offset = 0 + } else { + for (lineNode = node;; lineNode = lineNode.parentNode) { + if (!lineNode || lineNode == cm.display.lineDiv) { return null } + if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break } + } + } + for (var i = 0; i < cm.display.view.length; i++) { + var lineView = cm.display.view[i] + if (lineView.node == lineNode) + { return locateNodeInLineView(lineView, node, offset) } + } +} + +function locateNodeInLineView(lineView, node, offset) { + var wrapper = lineView.text.firstChild, bad = false + if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) } + if (node == wrapper) { + bad = true + node = wrapper.childNodes[offset] + offset = 0 + if (!node) { + var line = lineView.rest ? lst(lineView.rest) : lineView.line + return badPos(Pos(lineNo(line), line.text.length), bad) } } - var globalsRegistered = false; - function ensureGlobalHandlers() { - if (globalsRegistered) return; - registerGlobalHandlers(); - globalsRegistered = true; - } - function registerGlobalHandlers() { - // When the window resizes, we need to refresh active editors. - var resizeTimer; - on(window, "resize", function() { - if (resizeTimer == null) resizeTimer = setTimeout(function() { - resizeTimer = null; - forEachCodeMirror(onResize); - }, 100); - }); - // When the window loses focus, we want to show the editor as blurred - on(window, "blur", function() { - forEachCodeMirror(onBlur); - }); + var textNode = node.nodeType == 3 ? node : null, topNode = node + if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) { + textNode = node.firstChild + if (offset) { offset = textNode.nodeValue.length } } + while (topNode.parentNode != wrapper) { topNode = topNode.parentNode } + var measure = lineView.measure, maps = measure.maps - // FEATURE DETECTION - - // Detect drag-and-drop - var dragAndDrop = function() { - // There is *some* kind of drag-and-drop support in IE6-8, but I - // couldn't get it to work yet. - if (ie && ie_version < 9) return false; - var div = elt('div'); - return "draggable" in div || "dragDrop" in div; - }(); - - var zwspSupported; - function zeroWidthElement(measure) { - if (zwspSupported == null) { - var test = elt("span", "\u200b"); - removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); - if (measure.firstChild.offsetHeight != 0) - zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); + function find(textNode, topNode, offset) { + for (var i = -1; i < (maps ? maps.length : 0); i++) { + var map = i < 0 ? measure.map : maps[i] + for (var j = 0; j < map.length; j += 3) { + var curNode = map[j + 2] + if (curNode == textNode || curNode == topNode) { + var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]) + var ch = map[j] + offset + if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)] } + return Pos(line, ch) + } + } } - var node = zwspSupported ? elt("span", "\u200b") : - elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); - node.setAttribute("cm-text", ""); - return node; } + var found = find(textNode, topNode, offset) + if (found) { return badPos(found, bad) } - // Feature-detect IE's crummy client rect reporting for bidi text - var badBidiRects; - function hasBadBidiRects(measure) { - if (badBidiRects != null) return badBidiRects; - var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")); - var r0 = range(txt, 0, 1).getBoundingClientRect(); - var r1 = range(txt, 1, 2).getBoundingClientRect(); - removeChildren(measure); - if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780) - return badBidiRects = (r1.right - r0.right < 3); + // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems + for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) { + found = find(after, after.firstChild, 0) + if (found) + { return badPos(Pos(found.line, found.ch - dist), bad) } + else + { dist += after.textContent.length } } + for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) { + found = find(before, before.firstChild, -1) + if (found) + { return badPos(Pos(found.line, found.ch + dist$1), bad) } + else + { dist$1 += before.textContent.length } + } +} - // See if "".split is the broken IE version, if so, provide an - // alternative way to split lines. - var splitLinesAuto = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) { - var pos = 0, result = [], l = string.length; - while (pos <= l) { - var nl = string.indexOf("\n", pos); - if (nl == -1) nl = string.length; - var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl); - var rt = line.indexOf("\r"); - if (rt != -1) { - result.push(line.slice(0, rt)); - pos += rt + 1; +// TEXTAREA INPUT STYLE + +function TextareaInput(cm) { + this.cm = cm + // See input.poll and input.reset + this.prevInput = "" + + // Flag that indicates whether we expect input to appear real soon + // now (after some event like 'keypress' or 'input') and are + // polling intensively. + this.pollingFast = false + // Self-resetting timeout for the poller + this.polling = new Delayed() + // Tracks when input.reset has punted to just putting a short + // string into the textarea instead of the full selection. + this.inaccurateSelection = false + // Used to work around IE issue with selection being forgotten when focus moves away from textarea + this.hasSelection = false + this.composing = null +} + +TextareaInput.prototype = copyObj({ + init: function(display) { + var this$1 = this; + + var input = this, cm = this.cm + + // Wraps and hides input textarea + var div = this.wrapper = hiddenTextarea() + // The semihidden textarea that is focused when the editor is + // focused, and receives input. + var te = this.textarea = div.firstChild + display.wrapper.insertBefore(div, display.wrapper.firstChild) + + // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore) + if (ios) { te.style.width = "0px" } + + on(te, "input", function () { + if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null } + input.poll() + }) + + on(te, "paste", function (e) { + if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } + + cm.state.pasteIncoming = true + input.fastPoll() + }) + + function prepareCopyCut(e) { + if (signalDOMEvent(cm, e)) { return } + if (cm.somethingSelected()) { + setLastCopied({lineWise: false, text: cm.getSelections()}) + if (input.inaccurateSelection) { + input.prevInput = "" + input.inaccurateSelection = false + te.value = lastCopied.text.join("\n") + selectInput(te) + } + } else if (!cm.options.lineWiseCopyCut) { + return } else { - result.push(line); - pos = nl + 1; - } - } - return result; - } : function(string){return string.split(/\r\n?|\n/);}; - - var hasSelection = window.getSelection ? function(te) { - try { return te.selectionStart != te.selectionEnd; } - catch(e) { return false; } - } : function(te) { - try {var range = te.ownerDocument.selection.createRange();} - catch(e) {} - if (!range || range.parentElement() != te) return false; - return range.compareEndPoints("StartToEnd", range) != 0; - }; - - var hasCopyEvent = (function() { - var e = elt("div"); - if ("oncopy" in e) return true; - e.setAttribute("oncopy", "return;"); - return typeof e.oncopy == "function"; - })(); - - var badZoomedRects = null; - function hasBadZoomedRects(measure) { - if (badZoomedRects != null) return badZoomedRects; - var node = removeChildrenAndAdd(measure, elt("span", "x")); - var normal = node.getBoundingClientRect(); - var fromRange = range(node, 0, 1).getBoundingClientRect(); - return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1; - } - - // KEY NAMES - - var keyNames = CodeMirror.keyNames = { - 3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", - 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", - 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", - 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", - 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete", - 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", - 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete", - 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert" - }; - (function() { - // Number keys - for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i); - // Alphabetic keys - for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i); - // Function keys - for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i; - })(); - - // BIDI HELPERS - - function iterateBidiSections(order, from, to, f) { - if (!order) return f(from, to, "ltr"); - var found = false; - for (var i = 0; i < order.length; ++i) { - var part = order[i]; - if (part.from < to && part.to > from || from == to && part.to == from) { - f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr"); - found = true; - } - } - if (!found) f(from, to, "ltr"); - } - - function bidiLeft(part) { return part.level % 2 ? part.to : part.from; } - function bidiRight(part) { return part.level % 2 ? part.from : part.to; } - - function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; } - function lineRight(line) { - var order = getOrder(line); - if (!order) return line.text.length; - return bidiRight(lst(order)); - } - - function lineStart(cm, lineN) { - var line = getLine(cm.doc, lineN); - var visual = visualLine(line); - if (visual != line) lineN = lineNo(visual); - var order = getOrder(visual); - var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual); - return Pos(lineN, ch); - } - function lineEnd(cm, lineN) { - var merged, line = getLine(cm.doc, lineN); - while (merged = collapsedSpanAtEnd(line)) { - line = merged.find(1, true).line; - lineN = null; - } - var order = getOrder(line); - var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line); - return Pos(lineN == null ? lineNo(line) : lineN, ch); - } - function lineStartSmart(cm, pos) { - var start = lineStart(cm, pos.line); - var line = getLine(cm.doc, start.line); - var order = getOrder(line); - if (!order || order[0].level == 0) { - var firstNonWS = Math.max(0, line.text.search(/\S/)); - var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch; - return Pos(start.line, inWS ? 0 : firstNonWS); - } - return start; - } - - function compareBidiLevel(order, a, b) { - var linedir = order[0].level; - if (a == linedir) return true; - if (b == linedir) return false; - return a < b; - } - var bidiOther; - function getBidiPartAt(order, pos) { - bidiOther = null; - for (var i = 0, found; i < order.length; ++i) { - var cur = order[i]; - if (cur.from < pos && cur.to > pos) return i; - if ((cur.from == pos || cur.to == pos)) { - if (found == null) { - found = i; - } else if (compareBidiLevel(order, cur.level, order[found].level)) { - if (cur.from != cur.to) bidiOther = found; - return i; + var ranges = copyableRanges(cm) + setLastCopied({lineWise: true, text: ranges.text}) + if (e.type == "cut") { + cm.setSelections(ranges.ranges, null, sel_dontScroll) } else { - if (cur.from != cur.to) bidiOther = i; - return found; + input.prevInput = "" + te.value = ranges.text.join("\n") + selectInput(te) } } + if (e.type == "cut") { cm.state.cutIncoming = true } } - return found; + on(te, "cut", prepareCopyCut) + on(te, "copy", prepareCopyCut) + + on(display.scroller, "paste", function (e) { + if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return } + cm.state.pasteIncoming = true + input.focus() + }) + + // Prevent normal selection in the editor (we handle our own) + on(display.lineSpace, "selectstart", function (e) { + if (!eventInWidget(display, e)) { e_preventDefault(e) } + }) + + on(te, "compositionstart", function () { + var start = cm.getCursor("from") + if (input.composing) { input.composing.range.clear() } + input.composing = { + start: start, + range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"}) + } + }) + on(te, "compositionend", function () { + if (input.composing) { + input.poll() + input.composing.range.clear() + input.composing = null + } + }) + }, + + prepareSelection: function() { + // Redraw the selection and/or cursor + var cm = this.cm, display = cm.display, doc = cm.doc + var result = prepareSelection(cm) + + // Move the hidden textarea near the cursor to prevent scrolling artifacts + if (cm.options.moveInputWithCursor) { + var headPos = cursorCoords(cm, doc.sel.primary().head, "div") + var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect() + result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10, + headPos.top + lineOff.top - wrapOff.top)) + result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10, + headPos.left + lineOff.left - wrapOff.left)) + } + + return result + }, + + showSelection: function(drawn) { + var cm = this.cm, display = cm.display + removeChildrenAndAdd(display.cursorDiv, drawn.cursors) + removeChildrenAndAdd(display.selectionDiv, drawn.selection) + if (drawn.teTop != null) { + this.wrapper.style.top = drawn.teTop + "px" + this.wrapper.style.left = drawn.teLeft + "px" + } + }, + + // Reset the input to correspond to the selection (or to be empty, + // when not typing and nothing is selected) + reset: function(typing) { + if (this.contextMenuPending) { return } + var minimal, selected, cm = this.cm, doc = cm.doc + if (cm.somethingSelected()) { + this.prevInput = "" + var range = doc.sel.primary() + minimal = hasCopyEvent && + (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000) + var content = minimal ? "-" : selected || cm.getSelection() + this.textarea.value = content + if (cm.state.focused) { selectInput(this.textarea) } + if (ie && ie_version >= 9) { this.hasSelection = content } + } else if (!typing) { + this.prevInput = this.textarea.value = "" + if (ie && ie_version >= 9) { this.hasSelection = null } + } + this.inaccurateSelection = minimal + }, + + getField: function() { return this.textarea }, + + supportsTouch: function() { return false }, + + focus: function() { + if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) { + try { this.textarea.focus() } + catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM + } + }, + + blur: function() { this.textarea.blur() }, + + resetPosition: function() { + this.wrapper.style.top = this.wrapper.style.left = 0 + }, + + receivedFocus: function() { this.slowPoll() }, + + // Poll for input changes, using the normal rate of polling. This + // runs as long as the editor is focused. + slowPoll: function() { + var this$1 = this; + + if (this.pollingFast) { return } + this.polling.set(this.cm.options.pollInterval, function () { + this$1.poll() + if (this$1.cm.state.focused) { this$1.slowPoll() } + }) + }, + + // When an event has just come in that is likely to add or change + // something in the input textarea, we poll faster, to ensure that + // the change appears on the screen quickly. + fastPoll: function() { + var missed = false, input = this + input.pollingFast = true + function p() { + var changed = input.poll() + if (!changed && !missed) {missed = true; input.polling.set(60, p)} + else {input.pollingFast = false; input.slowPoll()} + } + input.polling.set(20, p) + }, + + // Read input from the textarea, and update the document to match. + // When something is selected, it is present in the textarea, and + // selected (unless it is huge, in which case a placeholder is + // used). When nothing is selected, the cursor sits after previously + // seen text (can be empty), which is stored in prevInput (we must + // not reset the textarea when typing, because that breaks IME). + poll: function() { + var this$1 = this; + + var cm = this.cm, input = this.textarea, prevInput = this.prevInput + // Since this is called a *lot*, try to bail out as cheaply as + // possible when it is clear that nothing happened. hasSelection + // will be the case when there is a lot of text in the textarea, + // in which case reading its value would be expensive. + if (this.contextMenuPending || !cm.state.focused || + (hasSelection(input) && !prevInput && !this.composing) || + cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq) + { return false } + + var text = input.value + // If nothing changed, bail. + if (text == prevInput && !cm.somethingSelected()) { return false } + // Work around nonsensical selection resetting in IE9/10, and + // inexplicable appearance of private area unicode characters on + // some key combos in Mac (#2689). + if (ie && ie_version >= 9 && this.hasSelection === text || + mac && /[\uf700-\uf7ff]/.test(text)) { + cm.display.input.reset() + return false + } + + if (cm.doc.sel == cm.display.selForContextMenu) { + var first = text.charCodeAt(0) + if (first == 0x200b && !prevInput) { prevInput = "\u200b" } + if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") } + } + // Find the part of the input that is actually new + var same = 0, l = Math.min(prevInput.length, text.length) + while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same } + + runInOp(cm, function () { + applyTextInput(cm, text.slice(same), prevInput.length - same, + null, this$1.composing ? "*compose" : null) + + // Don't leave long text in the textarea, since it makes further polling slow + if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = "" } + else { this$1.prevInput = text } + + if (this$1.composing) { + this$1.composing.range.clear() + this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"), + {className: "CodeMirror-composing"}) + } + }) + return true + }, + + ensurePolled: function() { + if (this.pollingFast && this.poll()) { this.pollingFast = false } + }, + + onKeyPress: function() { + if (ie && ie_version >= 9) { this.hasSelection = null } + this.fastPoll() + }, + + onContextMenu: function(e) { + var input = this, cm = input.cm, display = cm.display, te = input.textarea + var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop + if (!pos || presto) { return } // Opera is difficult. + + // Reset the current text selection only if the click is done outside of the selection + // and 'resetSelectionOnContextMenu' option is true. + var reset = cm.options.resetSelectionOnContextMenu + if (reset && cm.doc.sel.contains(pos) == -1) + { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll) } + + var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText + input.wrapper.style.cssText = "position: absolute" + var wrapperBox = input.wrapper.getBoundingClientRect() + te.style.cssText = "position: absolute; width: 30px; height: 30px;\n top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);" + var oldScrollY + if (webkit) { oldScrollY = window.scrollY } // Work around Chrome issue (#2712) + display.input.focus() + if (webkit) { window.scrollTo(null, oldScrollY) } + display.input.reset() + // Adds "Select all" to context menu in FF + if (!cm.somethingSelected()) { te.value = input.prevInput = " " } + input.contextMenuPending = true + display.selForContextMenu = cm.doc.sel + clearTimeout(display.detectingSelectAll) + + // Select-all will be greyed out if there's nothing to select, so + // this adds a zero-width space so that we can later check whether + // it got selected. + function prepareSelectAllHack() { + if (te.selectionStart != null) { + var selected = cm.somethingSelected() + var extval = "\u200b" + (selected ? te.value : "") + te.value = "\u21da" // Used to catch context-menu undo + te.value = extval + input.prevInput = selected ? "" : "\u200b" + te.selectionStart = 1; te.selectionEnd = extval.length + // Re-set this, in case some other handler touched the + // selection in the meantime. + display.selForContextMenu = cm.doc.sel + } + } + function rehide() { + input.contextMenuPending = false + input.wrapper.style.cssText = oldWrapperCSS + te.style.cssText = oldCSS + if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos) } + + // Try to detect the user choosing select-all + if (te.selectionStart != null) { + if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack() } + var i = 0, poll = function () { + if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 && + te.selectionEnd > 0 && input.prevInput == "\u200b") + { operation(cm, selectAll)(cm) } + else if (i++ < 10) { display.detectingSelectAll = setTimeout(poll, 500) } + else { display.input.reset() } + } + display.detectingSelectAll = setTimeout(poll, 200) + } + } + + if (ie && ie_version >= 9) { prepareSelectAllHack() } + if (captureRightClick) { + e_stop(e) + var mouseup = function () { + off(window, "mouseup", mouseup) + setTimeout(rehide, 20) + } + on(window, "mouseup", mouseup) + } else { + setTimeout(rehide, 50) + } + }, + + readOnlyChanged: function(val) { + if (!val) { this.reset() } + }, + + setUneditable: nothing, + + needsContentAttribute: false +}, TextareaInput.prototype) + +function fromTextArea(textarea, options) { + options = options ? copyObj(options) : {} + options.value = textarea.value + if (!options.tabindex && textarea.tabIndex) + { options.tabindex = textarea.tabIndex } + if (!options.placeholder && textarea.placeholder) + { options.placeholder = textarea.placeholder } + // Set autofocus to true if this textarea is focused, or if it has + // autofocus and no other element is focused. + if (options.autofocus == null) { + var hasFocus = activeElt() + options.autofocus = hasFocus == textarea || + textarea.getAttribute("autofocus") != null && hasFocus == document.body } - function moveInLine(line, pos, dir, byUnit) { - if (!byUnit) return pos + dir; - do pos += dir; - while (pos > 0 && isExtendingChar(line.text.charAt(pos))); - return pos; + function save() {textarea.value = cm.getValue()} + + var realSubmit + if (textarea.form) { + on(textarea.form, "submit", save) + // Deplorable hack to make the submit method do the right thing. + if (!options.leaveSubmitMethodAlone) { + var form = textarea.form + realSubmit = form.submit + try { + var wrappedSubmit = form.submit = function () { + save() + form.submit = realSubmit + form.submit() + form.submit = wrappedSubmit + } + } catch(e) {} + } } - // This is needed in order to move 'visually' through bi-directional - // text -- i.e., pressing left should make the cursor go left, even - // when in RTL text. The tricky part is the 'jumps', where RTL and - // LTR text touch each other. This often requires the cursor offset - // to move more than one unit, in order to visually move one unit. - function moveVisually(line, start, dir, byUnit) { - var bidi = getOrder(line); - if (!bidi) return moveLogically(line, start, dir, byUnit); - var pos = getBidiPartAt(bidi, start), part = bidi[pos]; - var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit); - - for (;;) { - if (target > part.from && target < part.to) return target; - if (target == part.from || target == part.to) { - if (getBidiPartAt(bidi, target) == pos) return target; - part = bidi[pos += dir]; - return (dir > 0) == part.level % 2 ? part.to : part.from; - } else { - part = bidi[pos += dir]; - if (!part) return null; - if ((dir > 0) == part.level % 2) - target = moveInLine(line, part.to, -1, byUnit); - else - target = moveInLine(line, part.from, 1, byUnit); + options.finishInit = function (cm) { + cm.save = save + cm.getTextArea = function () { return textarea; } + cm.toTextArea = function () { + cm.toTextArea = isNaN // Prevent this from being ran twice + save() + textarea.parentNode.removeChild(cm.getWrapperElement()) + textarea.style.display = "" + if (textarea.form) { + off(textarea.form, "submit", save) + if (typeof textarea.form.submit == "function") + { textarea.form.submit = realSubmit } } } } - function moveLogically(line, start, dir, byUnit) { - var target = start + dir; - if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir; - return target < 0 || target > line.text.length ? null : target; - } + textarea.style.display = "none" + var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); }, + options) + return cm +} - // Bidirectional ordering algorithm - // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm - // that this (partially) implements. +function addLegacyProps(CodeMirror) { + CodeMirror.off = off + CodeMirror.on = on + CodeMirror.wheelEventPixels = wheelEventPixels + CodeMirror.Doc = Doc + CodeMirror.splitLines = splitLinesAuto + CodeMirror.countColumn = countColumn + CodeMirror.findColumn = findColumn + CodeMirror.isWordChar = isWordCharBasic + CodeMirror.Pass = Pass + CodeMirror.signal = signal + CodeMirror.Line = Line + CodeMirror.changeEnd = changeEnd + CodeMirror.scrollbarModel = scrollbarModel + CodeMirror.Pos = Pos + CodeMirror.cmpPos = cmp + CodeMirror.modes = modes + CodeMirror.mimeModes = mimeModes + CodeMirror.resolveMode = resolveMode + CodeMirror.getMode = getMode + CodeMirror.modeExtensions = modeExtensions + CodeMirror.extendMode = extendMode + CodeMirror.copyState = copyState + CodeMirror.startState = startState + CodeMirror.innerMode = innerMode + CodeMirror.commands = commands + CodeMirror.keyMap = keyMap + CodeMirror.keyName = keyName + CodeMirror.isModifierKey = isModifierKey + CodeMirror.lookupKey = lookupKey + CodeMirror.normalizeKeyMap = normalizeKeyMap + CodeMirror.StringStream = StringStream + CodeMirror.SharedTextMarker = SharedTextMarker + CodeMirror.TextMarker = TextMarker + CodeMirror.LineWidget = LineWidget + CodeMirror.e_preventDefault = e_preventDefault + CodeMirror.e_stopPropagation = e_stopPropagation + CodeMirror.e_stop = e_stop + CodeMirror.addClass = addClass + CodeMirror.contains = contains + CodeMirror.rmClass = rmClass + CodeMirror.keyNames = keyNames +} - // One-char codes used for character types: - // L (L): Left-to-Right - // R (R): Right-to-Left - // r (AL): Right-to-Left Arabic - // 1 (EN): European Number - // + (ES): European Number Separator - // % (ET): European Number Terminator - // n (AN): Arabic Number - // , (CS): Common Number Separator - // m (NSM): Non-Spacing Mark - // b (BN): Boundary Neutral - // s (B): Paragraph Separator - // t (S): Segment Separator - // w (WS): Whitespace - // N (ON): Other Neutrals +// EDITOR CONSTRUCTOR - // Returns null if characters are ordered as they appear - // (left-to-right), or an array of sections ({from, to, level} - // objects) in the order in which they occur visually. - var bidiOrdering = (function() { - // Character types for codepoints 0 to 0xff - var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"; - // Character types for codepoints 0x600 to 0x6ff - var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm"; - function charType(code) { - if (code <= 0xf7) return lowTypes.charAt(code); - else if (0x590 <= code && code <= 0x5f4) return "R"; - else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600); - else if (0x6ee <= code && code <= 0x8ac) return "r"; - else if (0x2000 <= code && code <= 0x200b) return "w"; - else if (code == 0x200c) return "b"; - else return "L"; - } +defineOptions(CodeMirror) - var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/; - var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/; - // Browsers seem to always treat the boundaries of block elements as being L. - var outerType = "L"; +addEditorMethods(CodeMirror) - function BidiSpan(level, from, to) { - this.level = level; - this.from = from; this.to = to; - } +// Set up methods on CodeMirror's prototype to redirect to the editor's document. +var dontDelegate = "iter insert remove copy getEditor constructor".split(" ") +for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) + { CodeMirror.prototype[prop] = (function(method) { + return function() {return method.apply(this.doc, arguments)} + })(Doc.prototype[prop]) } } - return function(str) { - if (!bidiRE.test(str)) return false; - var len = str.length, types = []; - for (var i = 0, type; i < len; ++i) - types.push(type = charType(str.charCodeAt(i))); +eventMixin(Doc) - // W1. Examine each non-spacing mark (NSM) in the level run, and - // change the type of the NSM to the type of the previous - // character. If the NSM is at the start of the level run, it will - // get the type of sor. - for (var i = 0, prev = outerType; i < len; ++i) { - var type = types[i]; - if (type == "m") types[i] = prev; - else prev = type; - } +// INPUT HANDLING - // W2. Search backwards from each instance of a European number - // until the first strong type (R, L, AL, or sor) is found. If an - // AL is found, change the type of the European number to Arabic - // number. - // W3. Change all ALs to R. - for (var i = 0, cur = outerType; i < len; ++i) { - var type = types[i]; - if (type == "1" && cur == "r") types[i] = "n"; - else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; } - } +CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput} - // W4. A single European separator between two European numbers - // changes to a European number. A single common separator between - // two numbers of the same type changes to that type. - for (var i = 1, prev = types[0]; i < len - 1; ++i) { - var type = types[i]; - if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1"; - else if (type == "," && prev == types[i+1] && - (prev == "1" || prev == "n")) types[i] = prev; - prev = type; - } +// MODE DEFINITION AND QUERYING - // W5. A sequence of European terminators adjacent to European - // numbers changes to all European numbers. - // W6. Otherwise, separators and terminators change to Other - // Neutral. - for (var i = 0; i < len; ++i) { - var type = types[i]; - if (type == ",") types[i] = "N"; - else if (type == "%") { - for (var end = i + 1; end < len && types[end] == "%"; ++end) {} - var replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"; - for (var j = i; j < end; ++j) types[j] = replace; - i = end - 1; - } - } +// Extra arguments are stored as the mode's dependencies, which is +// used by (legacy) mechanisms like loadmode.js to automatically +// load a mode. (Preferred mechanism is the require/define calls.) +CodeMirror.defineMode = function(name/*, mode, …*/) { + if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name } + defineMode.apply(this, arguments) +} - // W7. Search backwards from each instance of a European number - // until the first strong type (R, L, or sor) is found. If an L is - // found, then change the type of the European number to L. - for (var i = 0, cur = outerType; i < len; ++i) { - var type = types[i]; - if (cur == "L" && type == "1") types[i] = "L"; - else if (isStrong.test(type)) cur = type; - } +CodeMirror.defineMIME = defineMIME - // N1. A sequence of neutrals takes the direction of the - // surrounding strong text if the text on both sides has the same - // direction. European and Arabic numbers act as if they were R in - // terms of their influence on neutrals. Start-of-level-run (sor) - // and end-of-level-run (eor) are used at level run boundaries. - // N2. Any remaining neutrals take the embedding direction. - for (var i = 0; i < len; ++i) { - if (isNeutral.test(types[i])) { - for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {} - var before = (i ? types[i-1] : outerType) == "L"; - var after = (end < len ? types[end] : outerType) == "L"; - var replace = before || after ? "L" : "R"; - for (var j = i; j < end; ++j) types[j] = replace; - i = end - 1; - } - } +// Minimal default mode. +CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); }) +CodeMirror.defineMIME("text/plain", "null") - // Here we depart from the documented algorithm, in order to avoid - // building up an actual levels array. Since there are only three - // levels (0, 1, 2) in an implementation that doesn't take - // explicit embedding into account, we can build up the order on - // the fly, without following the level-based algorithm. - var order = [], m; - for (var i = 0; i < len;) { - if (countsAsLeft.test(types[i])) { - var start = i; - for (++i; i < len && countsAsLeft.test(types[i]); ++i) {} - order.push(new BidiSpan(0, start, i)); - } else { - var pos = i, at = order.length; - for (++i; i < len && types[i] != "L"; ++i) {} - for (var j = pos; j < i;) { - if (countsAsNum.test(types[j])) { - if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j)); - var nstart = j; - for (++j; j < i && countsAsNum.test(types[j]); ++j) {} - order.splice(at, 0, new BidiSpan(2, nstart, j)); - pos = j; - } else ++j; - } - if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i)); - } - } - if (order[0].level == 1 && (m = str.match(/^\s+/))) { - order[0].from = m[0].length; - order.unshift(new BidiSpan(0, 0, m[0].length)); - } - if (lst(order).level == 1 && (m = str.match(/\s+$/))) { - lst(order).to -= m[0].length; - order.push(new BidiSpan(0, len - m[0].length, len)); - } - if (order[0].level == 2) - order.unshift(new BidiSpan(1, order[0].to, order[0].to)); - if (order[0].level != lst(order).level) - order.push(new BidiSpan(order[0].level, len, len)); +// EXTENSIONS - return order; - }; - })(); +CodeMirror.defineExtension = function (name, func) { + CodeMirror.prototype[name] = func +} +CodeMirror.defineDocExtension = function (name, func) { + Doc.prototype[name] = func +} - // THE END +CodeMirror.fromTextArea = fromTextArea - CodeMirror.version = "5.17.0"; +addLegacyProps(CodeMirror) - return CodeMirror; -}); +CodeMirror.version = "5.21.0" +return CodeMirror; + +}))); },{}],11:[function(require,module,exports){ // CodeMirror, copyright (c) by Marijn Haverbeke and others // Distributed under an MIT license: http://codemirror.net/LICENSE @@ -11476,9 +11729,8 @@ CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) { } var hrRE = /^([*\-_])(?:\s*\1){2,}\s*$/ - , ulRE = /^[*\-+]\s+/ - , olRE = /^[0-9]+([.)])\s+/ - , taskListRE = /^\[(x| )\](?=\s)/ // Must follow ulRE or olRE + , listRE = /^(?:[*\-+]|^[0-9]+([.)]))\s+/ + , taskListRE = /^\[(x| )\](?=\s)/ // Must follow listRE , atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/ , setextHeaderRE = /^ *(?:\={1,}|-{1,})\s*$/ , textRE = /^[^#!\[\]*_\\<>` "'(~]+/ @@ -11582,14 +11834,8 @@ CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) { } else if (stream.match(hrRE, true)) { state.hr = true; return tokenTypes.hr; - } else if ((lineIsEmpty(state.prevLine) || prevLineIsList) && (stream.match(ulRE, false) || stream.match(olRE, false))) { - var listType = null; - if (stream.match(ulRE, true)) { - listType = 'ul'; - } else { - stream.match(olRE, true); - listType = 'ol'; - } + } else if (match = stream.match(listRE)) { + var listType = match[1] ? "ol" : "ul"; state.indentation = stream.column() + stream.current().length; state.list = true; @@ -12202,6 +12448,7 @@ CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) { getType: getType, + closeBrackets: "()[]{}''\"\"``", fold: "markdown" }; return mode; @@ -12270,7 +12517,7 @@ CodeMirror.defineMIME("text/x-markdown", "markdown"); {name: "Gherkin", mime: "text/x-feature", mode: "gherkin", ext: ["feature"]}, {name: "GitHub Flavored Markdown", mime: "text/x-gfm", mode: "gfm", file: /^(readme|contributing|history).md$/i}, {name: "Go", mime: "text/x-go", mode: "go", ext: ["go"]}, - {name: "Groovy", mime: "text/x-groovy", mode: "groovy", ext: ["groovy", "gradle"]}, + {name: "Groovy", mime: "text/x-groovy", mode: "groovy", ext: ["groovy", "gradle"], file: /^Jenkinsfile$/}, {name: "HAML", mime: "text/x-haml", mode: "haml", ext: ["haml"]}, {name: "Haskell", mime: "text/x-haskell", mode: "haskell", ext: ["hs"]}, {name: "Haskell (Literate)", mime: "text/x-literate-haskell", mode: "haskell-literate", ext: ["lhs"]}, @@ -12280,7 +12527,7 @@ CodeMirror.defineMIME("text/x-markdown", "markdown"); {name: "HTML", mime: "text/html", mode: "htmlmixed", ext: ["html", "htm"], alias: ["xhtml"]}, {name: "HTTP", mime: "message/http", mode: "http"}, {name: "IDL", mime: "text/x-idl", mode: "idl", ext: ["pro"]}, - {name: "Jade", mime: "text/x-jade", mode: "jade", ext: ["jade"]}, + {name: "Pug", mime: "text/x-pug", mode: "pug", ext: ["jade", "pug"], alias: ["jade"]}, {name: "Java", mime: "text/x-java", mode: "clike", ext: ["java"]}, {name: "Java Server Pages", mime: "application/x-jsp", mode: "htmlembedded", ext: ["jsp"], alias: ["jsp"]}, {name: "JavaScript", mimes: ["text/javascript", "text/ecmascript", "application/javascript", "application/x-javascript", "application/ecmascript"], @@ -12345,6 +12592,7 @@ CodeMirror.defineMIME("text/x-markdown", "markdown"); {name: "Spreadsheet", mime: "text/x-spreadsheet", mode: "spreadsheet", alias: ["excel", "formula"]}, {name: "SQL", mime: "text/x-sql", mode: "sql", ext: ["sql"]}, {name: "Squirrel", mime: "text/x-squirrel", mode: "clike", ext: ["nut"]}, + {name: "Stylus", mime: "text/x-styl", mode: "stylus", ext: ["styl"]}, {name: "Swift", mime: "text/x-swift", mode: "swift", ext: ["swift"]}, {name: "sTeX", mime: "text/x-stex", mode: "stex"}, {name: "LaTeX", mime: "text/x-latex", mode: "stex", ext: ["text", "ltx"], alias: ["tex"]}, @@ -12367,10 +12615,11 @@ CodeMirror.defineMIME("text/x-markdown", "markdown"); {name: "Velocity", mime: "text/velocity", mode: "velocity", ext: ["vtl"]}, {name: "Verilog", mime: "text/x-verilog", mode: "verilog", ext: ["v"]}, {name: "VHDL", mime: "text/x-vhdl", mode: "vhdl", ext: ["vhd", "vhdl"]}, + {name: "Vue.js Component", mimes: ["script/x-vue", "text/x-vue"], mode: "vue", ext: ["vue"]}, {name: "XML", mimes: ["application/xml", "text/xml"], mode: "xml", ext: ["xml", "xsl", "xsd"], alias: ["rss", "wsdl", "xsd"]}, {name: "XQuery", mime: "application/xquery", mode: "xquery", ext: ["xy", "xquery"]}, {name: "Yacas", mime: "text/x-yacas", mode: "yacas", ext: ["ys"]}, - {name: "YAML", mime: "text/x-yaml", mode: "yaml", ext: ["yaml", "yml"], alias: ["yml"]}, + {name: "YAML", mimes: ["text/x-yaml", "text/yaml"], mode: "yaml", ext: ["yaml", "yml"], alias: ["yml"]}, {name: "Z80", mime: "text/x-z80", mode: "z80", ext: ["z80"]}, {name: "mscgen", mime: "text/x-mscgen", mode: "mscgen", ext: ["mscgen", "mscin", "msc"]}, {name: "xu", mime: "text/x-xu", mode: "mscgen", ext: ["xu"]}, @@ -14008,7 +14257,8 @@ function escape(html, encode) { } function unescape(html) { - return html.replace(/&([#\w]+);/g, function(_, n) { + // explicitly match decimal, hex, and named HTML entities + return html.replace(/&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/g, function(_, n) { n = n.toLowerCase(); if (n === 'colon') return ':'; if (n.charAt(0) === '#') { @@ -15140,7 +15390,7 @@ function createIcon(options, enableTooltips, shortcuts) { enableTooltips = (enableTooltips == undefined) ? true : enableTooltips; if(options.title && enableTooltips) { - el.title = createTootlip(options.title, options.action, shortcuts); + el.title = createTooltip(options.title, options.action, shortcuts); if(isMac) { el.title = el.title.replace("Ctrl", "⌘"); @@ -15160,7 +15410,7 @@ function createSep() { return el; } -function createTootlip(title, action, shortcuts) { +function createTooltip(title, action, shortcuts) { var actionName; var tooltip = title; @@ -16936,10 +17186,16 @@ SimpleMDE.prototype.createStatusbar = function(status) { * Get or set the text content. */ SimpleMDE.prototype.value = function(val) { + var cm = this.codemirror; if(val === undefined) { - return this.codemirror.getValue(); + return cm.getValue(); } else { - this.codemirror.getDoc().setValue(val); + cm.getDoc().setValue(val); + if(this.isPreviewActive()) { + var wrapper = cm.getWrapperElement(); + var preview = wrapper.lastChild; + preview.innerHTML = this.options.previewRender(val, preview); + } return this; } }; diff 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t=Ri(e.gutters,"CodeMirror-linenumbers");t==-1&&e.lineNumbers?e.gutters=e.gutters.concat(["CodeMirror-linenumbers"]):t>-1&&!e.lineNumbers&&(e.gutters=e.gutters.slice(0),e.gutters.splice(t,1))}function p(e){var t=e.display,n=t.gutters.offsetWidth,r=Math.round(e.doc.height+qe(e.display));return{clientHeight:t.scroller.clientHeight,viewHeight:t.wrapper.clientHeight,scrollWidth:t.scroller.scrollWidth,clientWidth:t.scroller.clientWidth,viewWidth:t.wrapper.clientWidth,barLeft:e.options.fixedGutter?n:0,docHeight:r,scrollHeight:r+Ye(e)+t.barHeight,nativeBarWidth:t.nativeBarWidth,gutterWidth:n}}function m(e,t,n){this.cm=n;var r=this.vert=Ui("div",[Ui("div",null,null,"min-width: 1px")],"CodeMirror-vscrollbar"),i=this.horiz=Ui("div",[Ui("div",null,null,"height: 100%; min-height: 1px")],"CodeMirror-hscrollbar");e(r),e(i),Oa(r,"scroll",function(){r.clientHeight&&t(r.scrollTop,"vertical")}),Oa(i,"scroll",function(){i.clientWidth&&t(i.scrollLeft,"horizontal")}),this.checkedZeroWidth=!1,bo&&wo<8&&(this.horiz.style.minHeight=this.vert.style.minWidth="18px")}function g(){}function v(t){t.display.scrollbars&&(t.display.scrollbars.clear(),t.display.scrollbars.addClass&&Ja(t.display.wrapper,t.display.scrollbars.addClass)),t.display.scrollbars=new e.scrollbarModel[t.options.scrollbarStyle](function(e){t.display.wrapper.insertBefore(e,t.display.scrollbarFiller),Oa(e,"mousedown",function(){t.state.focused&&setTimeout(function(){t.display.input.focus()},0)}),e.setAttribute("cm-not-content","true")},function(e,n){"horizontal"==n?an(t,e):on(t,e)},t),t.display.scrollbars.addClass&&Qa(t.display.wrapper,t.display.scrollbars.addClass)}function y(e,t){t||(t=p(e));var n=e.display.barWidth,r=e.display.barHeight;x(e,t);for(var i=0;i<4&&n!=e.display.barWidth||r!=e.display.barHeight;i++)n!=e.display.barWidth&&e.options.lineWrapping&&O(e),x(e,p(e)),n=e.display.barWidth,r=e.display.barHeight}function x(e,t){var n=e.display,r=n.scrollbars.update(t);n.sizer.style.paddingRight=(n.barWidth=r.right)+"px",n.sizer.style.paddingBottom=(n.barHeight=r.bottom)+"px",n.heightForcer.style.borderBottom=r.bottom+"px solid transparent",r.right&&r.bottom?(n.scrollbarFiller.style.display="block",n.scrollbarFiller.style.height=r.bottom+"px",n.scrollbarFiller.style.width=r.right+"px"):n.scrollbarFiller.style.display="",r.bottom&&e.options.coverGutterNextToScrollbar&&e.options.fixedGutter?(n.gutterFiller.style.display="block",n.gutterFiller.style.height=r.bottom+"px",n.gutterFiller.style.width=t.gutterWidth+"px"):n.gutterFiller.style.display=""}function b(e,t,n){var r=n&&null!=n.top?Math.max(0,n.top):e.scroller.scrollTop;r=Math.floor(r-Ue(e));var i=n&&null!=n.bottom?n.bottom:r+e.wrapper.clientHeight,o=ri(t,r),a=ri(t,i);if(n&&n.ensure){var l=n.ensure.from.line,s=n.ensure.to.line;l=a&&(o=ri(t,ii(Jr(t,s))-e.wrapper.clientHeight),a=s)}return{from:o,to:Math.max(a,o+1)}}function w(e){var t=e.display,n=t.view;if(t.alignWidgets||t.gutters.firstChild&&e.options.fixedGutter){for(var r=C(t)-t.scroller.scrollLeft+e.doc.scrollLeft,i=t.gutters.offsetWidth,o=r+"px",a=0;a=n.viewFrom&&t.visible.to<=n.viewTo&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo)&&n.renderedView==n.view&&0==jt(e))return!1;k(e)&&(_t(e),t.dims=P(e));var i=r.first+r.size,o=Math.max(t.visible.from-e.options.viewportMargin,r.first),a=Math.min(i,t.visible.to+e.options.viewportMargin);n.viewFroma&&n.viewTo-a<20&&(a=Math.min(i,n.viewTo)),_o&&(o=wr(e.doc,o),a=kr(e.doc,a));var l=o!=n.viewFrom||a!=n.viewTo||n.lastWrapHeight!=t.wrapperHeight||n.lastWrapWidth!=t.wrapperWidth;zt(e,o,a),n.viewOffset=ii(Jr(e.doc,n.viewFrom)),e.display.mover.style.top=n.viewOffset+"px";var s=jt(e);if(!l&&0==s&&!t.force&&n.renderedView==n.view&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo))return!1;var c=Yi();return s>4&&(n.lineDiv.style.display="none"),R(e,n.updateLineNumbers,t.dims),s>4&&(n.lineDiv.style.display=""),n.renderedView=n.view,c&&Yi()!=c&&c.offsetHeight&&c.focus(),qi(n.cursorDiv),qi(n.selectionDiv),n.gutters.style.height=n.sizer.style.minHeight=0,l&&(n.lastWrapHeight=t.wrapperHeight,n.lastWrapWidth=t.wrapperWidth,Be(e,400)),n.updateLineNumbers=null,!0}function A(e,t){for(var n=t.viewport,r=!0;(r&&e.options.lineWrapping&&t.oldDisplayWidth!=$e(e)||(n&&null!=n.top&&(n={top:Math.min(e.doc.height+qe(e.display)-Ve(e),n.top)}),t.visible=b(e.display,e.doc,n),!(t.visible.from>=e.display.viewFrom&&t.visible.to<=e.display.viewTo)))&&M(e,t);r=!1){O(e);var i=p(e);Re(e),y(e,i),E(e,i)}t.signal(e,"update",e),e.display.viewFrom==e.display.reportedViewFrom&&e.display.viewTo==e.display.reportedViewTo||(t.signal(e,"viewportChange",e,e.display.viewFrom,e.display.viewTo),e.display.reportedViewFrom=e.display.viewFrom,e.display.reportedViewTo=e.display.viewTo)}function N(e,t){var n=new L(e,t);if(M(e,n)){O(e),A(e,n);var r=p(e);Re(e),y(e,r),E(e,r),n.finish()}}function E(e,t){e.display.sizer.style.minHeight=t.docHeight+"px",e.display.heightForcer.style.top=t.docHeight+"px",e.display.gutters.style.height=t.docHeight+e.display.barHeight+Ye(e)+"px"}function O(e){for(var t=e.display,n=t.lineDiv.offsetTop,r=0;r.001||s<-.001)&&(ti(o.line,i),I(o.line),o.rest))for(var c=0;c-1&&(h=!1),H(e,f,c,n)),h&&(qi(f.lineNumber),f.lineNumber.appendChild(document.createTextNode(S(e.options,c)))),l=f.node.nextSibling}else{var d=U(e,f,c,n);a.insertBefore(d,l)}c+=f.size}for(;l;)l=r(l)}function H(e,t,n,r){for(var i=0;i1)if(zo&&zo.text.join("\n")==t){if(r.ranges.length%zo.text.length==0){s=[];for(var c=0;c=0;c--){var u=r.ranges[c],f=u.from(),h=u.to();u.empty()&&(n&&n>0?f=Bo(f.line,f.ch-n):e.state.overwrite&&!a?h=Bo(h.line,Math.min(Jr(o,h.line).text.length,h.ch+Pi(l).length)):zo&&zo.lineWise&&zo.text.join("\n")==t&&(f=h=Bo(f.line,0)));var d=e.curOp.updateInput,p={from:f,to:h,text:s?s[c%s.length]:l,origin:i||(a?"paste":e.state.cutIncoming?"cut":"+input")};Mn(e.doc,p),Li(e,"inputRead",e,p)}t&&!a&&Q(e,t),Bn(e),e.curOp.updateInput=d,e.curOp.typing=!0,e.state.pasteIncoming=e.state.cutIncoming=!1}function J(e,t){var n=e.clipboardData&&e.clipboardData.getData("text/plain");if(n)return e.preventDefault(),t.isReadOnly()||t.options.disableInput||Et(t,function(){Z(t,n,0,null,"paste")}),!0}function Q(e,t){if(e.options.electricChars&&e.options.smartIndent)for(var n=e.doc.sel,r=n.ranges.length-1;r>=0;r--){var i=n.ranges[r];if(!(i.head.ch>100||r&&n.ranges[r-1].head.line==i.head.line)){var o=e.getModeAt(i.head),a=!1;if(o.electricChars){for(var l=0;l-1){a=zn(e,i.head.line,"smart");break}}else o.electricInput&&o.electricInput.test(Jr(e.doc,i.head.line).text.slice(0,i.head.ch))&&(a=zn(e,i.head.line,"smart"));a&&Li(e,"electricInput",e,i.head.line)}}}function ee(e){for(var t=[],n=[],r=0;r=0){var a=K(o.from(),i.from()),l=V(o.to(),i.to()),s=o.empty()?i.from()==i.head:o.from()==o.head;r<=t&&--t,e.splice(--r,2,new fe(s?l:a,s?a:l))}}return new ue(e,t)}function de(e,t){return new ue([new fe(e,t||e)],0)}function pe(e,t){return Math.max(e.first,Math.min(t,e.first+e.size-1))}function me(e,t){if(t.linen?Bo(n,Jr(e,n).text.length):ge(t,Jr(e,t.line).text.length)}function ge(e,t){var n=e.ch;return null==n||n>t?Bo(e.line,t):n<0?Bo(e.line,0):e}function ve(e,t){return t>=e.first&&t=t.ch:l.to>t.ch))){if(i&&(Ra(s,"beforeCursorEnter"),s.explicitlyCleared)){if(o.markedSpans){--a;continue}break}if(!s.atomic)continue;if(n){var c,u=s.find(r<0?1:-1);if((r<0?s.inclusiveRight:s.inclusiveLeft)&&(u=Pe(e,u,-r,u&&u.line==t.line?o:null)),u&&u.line==t.line&&(c=Fo(u,n))&&(r<0?c<0:c>0))return Oe(e,u,t,r,i)}var f=s.find(r<0?-1:1);return(r<0?s.inclusiveLeft:s.inclusiveRight)&&(f=Pe(e,f,r,f.line==t.line?o:null)),f?Oe(e,f,t,r,i):null}}return t}function Ie(e,t,n,r,i){var o=r||1,a=Oe(e,t,n,o,i)||!i&&Oe(e,t,n,o,!0)||Oe(e,t,n,-o,i)||!i&&Oe(e,t,n,-o,!0);return a?a:(e.cantEdit=!0,Bo(e.first,0))}function Pe(e,t,n,r){return n<0&&0==t.ch?t.line>e.first?me(e,Bo(t.line-1)):null:n>0&&t.ch==(r||Jr(e,t.line)).text.length?t.line=e.display.viewTo||l.to().line3&&(r(d,m.top,null,m.bottom),d=c,m.bottoms.bottom||f.bottom==s.bottom&&f.right>s.right)&&(s=f),d0?t.blinker=setInterval(function(){t.cursorDiv.style.visibility=(n=!n)?"":"hidden"},e.options.cursorBlinkRate):e.options.cursorBlinkRate<0&&(t.cursorDiv.style.visibility="hidden")}}function Be(e,t){e.doc.mode.startState&&e.doc.frontier=e.display.viewTo)){var n=+new Date+e.options.workTime,r=ca(t.mode,je(e,t.frontier)),i=[];t.iter(t.frontier,Math.min(t.first+t.size,e.display.viewTo+500),function(o){if(t.frontier>=e.display.viewFrom){var a=o.styles,l=o.text.length>e.options.maxHighlightLength,s=Hr(e,o,l?ca(t.mode,r):r,!0);o.styles=s.styles;var c=o.styleClasses,u=s.classes;u?o.styleClasses=u:c&&(o.styleClasses=null);for(var f=!a||a.length!=o.styles.length||c!=u&&(!c||!u||c.bgClass!=u.bgClass||c.textClass!=u.textClass),h=0;!f&&hn)return Be(e,e.options.workDelay),!0}),i.length&&Et(e,function(){for(var t=0;ta;--l){if(l<=o.first)return o.first;var s=Jr(o,l-1);if(s.stateAfter&&(!n||l<=o.frontier))return l;var c=za(s.text,null,e.options.tabSize);(null==i||r>c)&&(i=l-1,r=c)}return i}function je(e,t,n){var r=e.doc,i=e.display;if(!r.mode.startState)return!0;var o=ze(e,t,n),a=o>r.first&&Jr(r,o-1).stateAfter;return a=a?ca(r.mode,a):ua(r.mode),r.iter(o,t,function(n){Wr(e,n.text,a);var l=o==t-1||o%5==0||o>=i.viewFrom&&o2&&o.push((s.bottom+c.top)/2-n.top)}}o.push(n.bottom-n.top)}}function Xe(e,t,n){if(e.line==t)return{map:e.measure.map,cache:e.measure.cache};for(var r=0;rn)return{map:e.measure.maps[r],cache:e.measure.caches[r],before:!0}}function Ze(e,t){t=xr(t);var n=ni(t),r=e.display.externalMeasured=new Rt(e.doc,t,n);r.lineN=n;var i=r.built=Br(e,r);return r.text=i.pre,Gi(e.display.lineMeasure,i.pre),r}function Je(e,t,n,r){return tt(e,et(e,t),n,r)}function Qe(e,t){if(t>=e.display.viewFrom&&t=n.lineN&&tt)&&(o=c-s,i=o-1,t>=c&&(a="right")),null!=i){if(r=e[l+2],s==c&&n==(r.insertLeft?"left":"right")&&(a=n),"left"==n&&0==i)for(;l&&e[l-2]==e[l-3]&&e[l-1].insertLeft;)r=e[(l-=3)+2],a="left";if("right"==n&&i==c-s)for(;l=0&&(n=e[r]).left==n.right;r--);return n}function it(e,t,n,r){var i,o=nt(t.map,n,r),a=o.node,l=o.start,s=o.end,c=o.collapse;if(3==a.nodeType){for(var u=0;u<4;u++){for(;l&&ji(t.line.text.charAt(o.coverStart+l));)--l;for(;o.coverStart+s0&&(c=r="right");var f;i=e.options.lineWrapping&&(f=a.getClientRects()).length>1?f["right"==r?f.length-1:0]:a.getBoundingClientRect()}if(bo&&wo<9&&!l&&(!i||!i.left&&!i.right)){var h=a.parentNode.getClientRects()[0];i=h?{left:h.left,right:h.left+bt(e.display),top:h.top,bottom:h.bottom}:Go}for(var d=i.top-t.rect.top,p=i.bottom-t.rect.top,m=(d+p)/2,g=t.view.measure.heights,u=0;un.from?a(e-1):a(e,r)}r=r||Jr(e.doc,t.line),i||(i=et(e,r));var s=oi(r),c=t.ch;if(!s)return a(c);var u=uo(s,c),f=l(c,u);return null!=ll&&(f.other=l(c,ll)),f}function mt(e,t){var n=0,t=me(e.doc,t);e.options.lineWrapping||(n=bt(e.display)*t.ch);var r=Jr(e.doc,t.line),i=ii(r)+Ue(e.display);return{left:n,right:n,top:i,bottom:i+r.height}}function gt(e,t,n,r){var i=Bo(e,t);return i.xRel=r,n&&(i.outside=!0),i}function vt(e,t,n){var r=e.doc;if(n+=e.display.viewOffset,n<0)return gt(r.first,0,!0,-1);var i=ri(r,n),o=r.first+r.size-1;if(i>o)return gt(r.first+r.size-1,Jr(r,o).text.length,!0,1);t<0&&(t=0);for(var a=Jr(r,i);;){var l=yt(e,a,i,t,n),s=vr(a),c=s&&s.find(0,!0);if(!s||!(l.ch>c.from.ch||l.ch==c.from.ch&&l.xRel>0))return l;i=ni(a=c.to.line)}}function yt(e,t,n,r,i){function o(r){var i=pt(e,Bo(n,r),"line",t,c);return l=!0,a>i.bottom?i.left-s:ag)return gt(n,d,v,1);for(;;){if(u?d==h||d==ho(t,h,1):d-h<=1){var y=r0&&y1){var w=tt(e,c,y,"right");a<=w.bottom&&a>=w.top&&Math.abs(r-w.right)1?1:0);return k}var S=Math.ceil(f/2),C=h+S;if(u){C=h;for(var L=0;Lr?(d=C,g=T,(v=l)&&(g+=1e3),f=S):(h=C,p=T,m=l,f-=S)}}function xt(e){if(null!=e.cachedTextHeight)return e.cachedTextHeight;if(null==jo){jo=Ui("pre");for(var t=0;t<49;++t)jo.appendChild(document.createTextNode("x")),jo.appendChild(Ui("br"));jo.appendChild(document.createTextNode("x"))}Gi(e.measure,jo);var n=jo.offsetHeight/50;return n>3&&(e.cachedTextHeight=n),qi(e.measure),n||1}function bt(e){if(null!=e.cachedCharWidth)return e.cachedCharWidth;var t=Ui("span","xxxxxxxxxx"),n=Ui("pre",[t]);Gi(e.measure,n);var r=t.getBoundingClientRect(),i=(r.right-r.left)/10;return i>2&&(e.cachedCharWidth=i),i||10}function wt(e){e.curOp={cm:e,viewChanged:!1,startHeight:e.doc.height,forceUpdate:!1,updateInput:null,typing:!1,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:!1,updateMaxLine:!1,scrollLeft:null,scrollTop:null,scrollToPos:null,focus:!1,id:++$o},Yo?Yo.ops.push(e.curOp):e.curOp.ownsGroup=Yo={ops:[e.curOp],delayedCallbacks:[]}}function kt(e){var t=e.delayedCallbacks,n=0;do{for(;n=n.viewTo)||n.maxLineChanged&&t.options.lineWrapping,e.update=e.mustUpdate&&new L(t,e.mustUpdate&&{top:e.scrollTop,ensure:e.scrollToPos},e.forceUpdate)}function Tt(e){e.updatedDisplay=e.mustUpdate&&M(e.cm,e.update)}function Mt(e){var t=e.cm,n=t.display;e.updatedDisplay&&O(t),e.barMeasure=p(t),n.maxLineChanged&&!t.options.lineWrapping&&(e.adjustWidthTo=Je(t,n.maxLine,n.maxLine.text.length).left+3,t.display.sizerWidth=e.adjustWidthTo,e.barMeasure.scrollWidth=Math.max(n.scroller.clientWidth,n.sizer.offsetLeft+e.adjustWidthTo+Ye(t)+t.display.barWidth),e.maxScrollLeft=Math.max(0,n.sizer.offsetLeft+e.adjustWidthTo-$e(t))),(e.updatedDisplay||e.selectionChanged)&&(e.preparedSelection=n.input.prepareSelection(e.focus))}function At(e){var t=e.cm;null!=e.adjustWidthTo&&(t.display.sizer.style.minWidth=e.adjustWidthTo+"px",e.maxScrollLeftt)&&(i.updateLineNumbers=t),e.curOp.viewChanged=!0,t>=i.viewTo)_o&&wr(e.doc,t)i.viewFrom?_t(e):(i.viewFrom+=r,i.viewTo+=r);else if(t<=i.viewFrom&&n>=i.viewTo)_t(e);else if(t<=i.viewFrom){var o=Ft(e,n,n+r,1);o?(i.view=i.view.slice(o.index),i.viewFrom=o.lineN,i.viewTo+=r):_t(e)}else if(n>=i.viewTo){var o=Ft(e,t,t,-1);o?(i.view=i.view.slice(0,o.index),i.viewTo=o.lineN):_t(e)}else{var a=Ft(e,t,t,-1),l=Ft(e,n,n+r,1);a&&l?(i.view=i.view.slice(0,a.index).concat(Ht(e,a.lineN,l.lineN)).concat(i.view.slice(l.index)),i.viewTo+=r):_t(e)}var s=i.externalMeasured;s&&(n=i.lineN&&t=r.viewTo)){var o=r.view[Bt(e,t)];if(null!=o.node){var a=o.changes||(o.changes=[]);Ri(a,n)==-1&&a.push(n)}}}function _t(e){e.display.viewFrom=e.display.viewTo=e.doc.first,e.display.view=[],e.display.viewOffset=0}function Bt(e,t){if(t>=e.display.viewTo)return null;if(t-=e.display.viewFrom,t<0)return null;for(var n=e.display.view,r=0;r0){if(o==a.length-1)return null;i=s+a[o].size-t,o++}else i=s-t;t+=i,n+=i}for(;wr(e.doc,n)!=n;){if(o==(r<0?0:a.length-1))return null;n+=r*a[o-(r<0?1:0)].size,o+=r}return{index:o,lineN:n}}function zt(e,t,n){var r=e.display,i=r.view;0==i.length||t>=r.viewTo||n<=r.viewFrom?(r.view=Ht(e,t,n),r.viewFrom=t):(r.viewFrom>t?r.view=Ht(e,t,r.viewFrom).concat(r.view):r.viewFromn&&(r.view=r.view.slice(0,Bt(e,n)))),r.viewTo=n}function jt(e){for(var t=e.display.view,n=0,r=0;r400}var i=e.display;Oa(i.scroller,"mousedown",Ot(e,Vt)),bo&&wo<11?Oa(i.scroller,"dblclick",Ot(e,function(t){if(!Mi(e,t)){var n=$t(e,t);if(n&&!Qt(e,t)&&!Yt(e.display,t)){Aa(t);var r=e.findWordAt(n);be(e.doc,r.anchor,r.head)}}})):Oa(i.scroller,"dblclick",function(t){Mi(e,t)||Aa(t)}),Do||Oa(i.scroller,"contextmenu",function(t){bn(e,t)});var o,a={end:0};Oa(i.scroller,"touchstart",function(t){if(!Mi(e,t)&&!n(t)){clearTimeout(o);var r=+new Date;i.activeTouch={start:r,moved:!1,prev:r-a.end<=300?a:null},1==t.touches.length&&(i.activeTouch.left=t.touches[0].pageX,i.activeTouch.top=t.touches[0].pageY)}}),Oa(i.scroller,"touchmove",function(){i.activeTouch&&(i.activeTouch.moved=!0)}),Oa(i.scroller,"touchend",function(n){var o=i.activeTouch;if(o&&!Yt(i,n)&&null!=o.left&&!o.moved&&new Date-o.start<300){var a,l=e.coordsChar(i.activeTouch,"page");a=!o.prev||r(o,o.prev)?new fe(l,l):!o.prev.prev||r(o,o.prev.prev)?e.findWordAt(l):new fe(Bo(l.line,0),me(e.doc,Bo(l.line+1,0))),e.setSelection(a.anchor,a.head),e.focus(),Aa(n)}t()}),Oa(i.scroller,"touchcancel",t),Oa(i.scroller,"scroll",function(){i.scroller.clientHeight&&(on(e,i.scroller.scrollTop),an(e,i.scroller.scrollLeft,!0),Ra(e,"scroll",e))}),Oa(i.scroller,"mousewheel",function(t){ln(e,t)}),Oa(i.scroller,"DOMMouseScroll",function(t){ln(e,t)}),Oa(i.wrapper,"scroll",function(){i.wrapper.scrollTop=i.wrapper.scrollLeft=0}),i.dragFunctions={enter:function(t){Mi(e,t)||Ea(t)},over:function(t){Mi(e,t)||(nn(e,t),Ea(t))},start:function(t){tn(e,t)},drop:Ot(e,en),leave:function(t){Mi(e,t)||rn(e)}};var l=i.input.getField();Oa(l,"keyup",function(t){mn.call(e,t)}),Oa(l,"keydown",Ot(e,dn)),Oa(l,"keypress",Ot(e,gn)),Oa(l,"focus",Bi(yn,e)),Oa(l,"blur",Bi(xn,e))}function qt(t,n,r){var i=r&&r!=e.Init;if(!n!=!i){var o=t.display.dragFunctions,a=n?Oa:Pa;a(t.display.scroller,"dragstart",o.start),a(t.display.scroller,"dragenter",o.enter),a(t.display.scroller,"dragover",o.over),a(t.display.scroller,"dragleave",o.leave),a(t.display.scroller,"drop",o.drop)}}function Gt(e){var t=e.display;t.lastWrapHeight==t.wrapper.clientHeight&&t.lastWrapWidth==t.wrapper.clientWidth||(t.cachedCharWidth=t.cachedTextHeight=t.cachedPaddingH=null,t.scrollbarsClipped=!1,e.setSize())}function Yt(e,t){for(var n=ki(t);n!=e.wrapper;n=n.parentNode)if(!n||1==n.nodeType&&"true"==n.getAttribute("cm-ignore-events")||n.parentNode==e.sizer&&n!=e.mover)return!0}function $t(e,t,n,r){var i=e.display;if(!n&&"true"==ki(t).getAttribute("cm-not-content"))return null;var o,a,l=i.lineSpace.getBoundingClientRect();try{o=t.clientX-l.left,a=t.clientY-l.top}catch(t){return null}var s,c=vt(e,o,a);if(r&&1==c.xRel&&(s=Jr(e.doc,c.line).text).length==c.ch){var u=za(s,s.length,e.options.tabSize)-s.length;c=Bo(c.line,Math.max(0,Math.round((o-Ge(e.display).left)/bt(e.display))-u))}return c}function Vt(e){var t=this,n=t.display;if(!(Mi(t,e)||n.activeTouch&&n.input.supportsTouch())){if(n.shift=e.shiftKey,Yt(n,e))return void(ko||(n.scroller.draggable=!1,setTimeout(function(){n.scroller.draggable=!0},100)));if(!Qt(t,e)){var r=$t(t,e);switch(window.focus(),Si(e)){case 1:t.state.selectingText?t.state.selectingText(e):r?Kt(t,e,r):ki(e)==n.scroller&&Aa(e);break;case 2:ko&&(t.state.lastMiddleDown=+new Date),r&&be(t.doc,r),setTimeout(function(){n.input.focus()},20),Aa(e);break;case 3:Do?bn(t,e):vn(t)}}}}function Kt(e,t,n){bo?setTimeout(Bi(X,e),0):e.curOp.focus=Yi();var r,i=+new Date;qo&&qo.time>i-400&&0==Fo(qo.pos,n)?r="triple":Uo&&Uo.time>i-400&&0==Fo(Uo.pos,n)?(r="double",qo={time:i,pos:n}):(r="single",Uo={time:i,pos:n});var o,a=e.doc.sel,l=Oo?t.metaKey:t.ctrlKey;e.options.dragDrop&&tl&&!e.isReadOnly()&&"single"==r&&(o=a.contains(n))>-1&&(Fo((o=a.ranges[o]).from(),n)<0||n.xRel>0)&&(Fo(o.to(),n)>0||n.xRel<0)?Xt(e,t,n,l):Zt(e,t,n,r,l)}function Xt(e,t,n,r){var i=e.display,o=+new Date,a=Ot(e,function(l){ko&&(i.scroller.draggable=!1),e.state.draggingText=!1,Pa(document,"mouseup",a),Pa(i.scroller,"drop",a),Math.abs(t.clientX-l.clientX)+Math.abs(t.clientY-l.clientY)<10&&(Aa(l),!r&&+new Date-200y&&i.push(new fe(Bo(p,y),Bo(p,ja(v,d,o))))}i.length||i.push(new fe(n,n)),Te(c,he(h.ranges.slice(0,f).concat(i),f),{origin:"*mouse",scroll:!1}),e.scrollIntoView(t)}else{var x=u,b=x.anchor,w=t;if("single"!=r){if("double"==r)var k=e.findWordAt(t);else var k=new fe(Bo(t.line,0),me(c,Bo(t.line+1,0)));Fo(k.anchor,b)>0?(w=k.head,b=K(x.from(),k.anchor)):(w=k.anchor,b=V(x.to(),k.head))}var i=h.ranges.slice(0);i[f]=new fe(me(c,b),w),Te(c,he(i,f),Ba)}}function a(t){var n=++y,i=$t(e,t,!0,"rect"==r);if(i)if(0!=Fo(i,g)){e.curOp.focus=Yi(),o(i);var l=b(s,c);(i.line>=l.to||i.linev.bottom?20:0;u&&setTimeout(Ot(e,function(){y==n&&(s.scroller.scrollTop+=u,a(t))}),50)}}function l(t){e.state.selectingText=!1,y=1/0,Aa(t),s.input.focus(),Pa(document,"mousemove",x),Pa(document,"mouseup",w),c.history.lastSelOrigin=null}var s=e.display,c=e.doc;Aa(t);var u,f,h=c.sel,d=h.ranges;if(i&&!t.shiftKey?(f=c.sel.contains(n),u=f>-1?d[f]:new fe(n,n)):(u=c.sel.primary(),f=c.sel.primIndex),Io?t.shiftKey&&t.metaKey:t.altKey)r="rect",i||(u=new fe(n,n)),n=$t(e,t,!0,!0),f=-1;else if("double"==r){var p=e.findWordAt(n);u=e.display.shift||c.extend?xe(c,u,p.anchor,p.head):p}else if("triple"==r){var m=new fe(Bo(n.line,0),me(c,Bo(n.line+1,0)));u=e.display.shift||c.extend?xe(c,u,m.anchor,m.head):m}else u=xe(c,u,n);i?f==-1?(f=d.length,Te(c,he(d.concat([u]),f),{scroll:!1,origin:"*mouse"})):d.length>1&&d[f].empty()&&"single"==r&&!t.shiftKey?(Te(c,he(d.slice(0,f).concat(d.slice(f+1)),0),{scroll:!1,origin:"*mouse"}),h=c.sel):ke(c,f,u,Ba):(f=0,Te(c,new ue([u],0),Ba),h=c.sel);var g=n,v=s.wrapper.getBoundingClientRect(),y=0,x=Ot(e,function(e){Si(e)?a(e):l(e)}),w=Ot(e,l);e.state.selectingText=w,Oa(document,"mousemove",x),Oa(document,"mouseup",w)}function Jt(e,t,n,r){try{var i=t.clientX,o=t.clientY}catch(t){return!1}if(i>=Math.floor(e.display.gutters.getBoundingClientRect().right))return!1;r&&Aa(t);var a=e.display,l=a.lineDiv.getBoundingClientRect();if(o>l.bottom||!Ni(e,n))return wi(t);o-=l.top-a.viewOffset;for(var s=0;s=i){var u=ri(e.doc,o),f=e.options.gutters[s];return Ra(e,n,e,u,f,t),wi(t)}}}function Qt(e,t){return Jt(e,t,"gutterClick",!0)}function en(e){var t=this;if(rn(t),!Mi(t,e)&&!Yt(t.display,e)){Aa(e),bo&&(Vo=+new Date);var n=$t(t,e,!0),r=e.dataTransfer.files;if(n&&!t.isReadOnly())if(r&&r.length&&window.FileReader&&window.File)for(var i=r.length,o=Array(i),a=0,l=function(e,r){if(!t.options.allowDropFileTypes||Ri(t.options.allowDropFileTypes,e.type)!=-1){var l=new FileReader;l.onload=Ot(t,function(){var e=l.result;if(/[\x00-\x08\x0e-\x1f]{2}/.test(e)&&(e=""),o[r]=e,++a==i){n=me(t.doc,n);var s={from:n,to:n,text:t.doc.splitLines(o.join(t.doc.lineSeparator())),origin:"paste"};Mn(t.doc,s),Le(t.doc,de(n,ea(s)))}}),l.readAsText(e)}},s=0;s-1)return t.state.draggingText(e),void setTimeout(function(){t.display.input.focus()},20);try{var o=e.dataTransfer.getData("Text");if(o){if(t.state.draggingText&&!t.state.draggingText.copy)var c=t.listSelections();if(Me(t.doc,de(n,n)),c)for(var s=0;sa.clientWidth,s=a.scrollHeight>a.clientHeight;if(r&&l||i&&s){if(i&&Oo&&ko)e:for(var c=t.target,u=o.view;c!=a;c=c.parentNode)for(var f=0;f=0;--i)An(e,{from:r[i].from,to:r[i].to,text:i?[""]:t.text});else An(e,t)}}function An(e,t){if(1!=t.text.length||""!=t.text[0]||0!=Fo(t.from,t.to)){var n=Sn(e,t);ui(e,t,n,e.cm?e.cm.curOp.id:NaN),On(e,t,n,ar(e,t));var r=[];Xr(e,function(e,n){n||Ri(r,e.history)!=-1||(bi(e.history,t),r.push(e.history)),On(e,t,null,ar(e,t))})}}function Nn(e,t,n){if(!e.cm||!e.cm.state.suppressEdits||n){for(var r,i=e.history,o=e.sel,a="undo"==t?i.done:i.undone,l="undo"==t?i.undone:i.done,s=0;s=0;--s){var f=r.changes[s];if(f.origin=t,u&&!Tn(e,f,!1))return void(a.length=0);c.push(li(e,f));var h=s?Sn(e,f):Pi(a);On(e,f,h,sr(e,f)),!s&&e.cm&&e.cm.scrollIntoView({from:f.from,to:ea(f)});var d=[];Xr(e,function(e,t){t||Ri(d,e.history)!=-1||(bi(e.history,f),d.push(e.history)),On(e,f,null,sr(e,f))})}}}}function En(e,t){if(0!=t&&(e.first+=t,e.sel=new ue(Hi(e.sel.ranges,function(e){return new fe(Bo(e.anchor.line+t,e.anchor.ch),Bo(e.head.line+t,e.head.ch))}),e.sel.primIndex),e.cm)){Dt(e.cm,e.first,e.first-t,t);for(var n=e.cm.display,r=n.viewFrom;re.lastLine())){if(t.from.lineo&&(t={from:t.from,to:Bo(o,Jr(e,o).text.length),text:[t.text[0]],origin:t.origin}),t.removed=Qr(e,t.from,t.to),n||(n=Sn(e,t)),e.cm?In(e.cm,t,r):$r(e,t,r),Me(e,n,_a)}}function In(e,t,n){var r=e.doc,i=e.display,a=t.from,l=t.to,s=!1,c=a.line;e.options.lineWrapping||(c=ni(xr(Jr(r,a.line))),r.iter(c,l.line+1,function(e){if(e==i.maxLine)return s=!0,!0})),r.sel.contains(t.from,t.to)>-1&&Ai(e),$r(r,t,n,o(e)),e.options.lineWrapping||(r.iter(c,a.line+t.text.length,function(e){var t=f(e);t>i.maxLineLength&&(i.maxLine=e,i.maxLineLength=t,i.maxLineChanged=!0,s=!1)}),s&&(e.curOp.updateMaxLine=!0)),r.frontier=Math.min(r.frontier,a.line),Be(e,400);var u=t.text.length-(l.line-a.line)-1;t.full?Dt(e):a.line!=l.line||1!=t.text.length||Yr(e.doc,t)?Dt(e,a.line,l.line+1,u):Wt(e,a.line,"text");var h=Ni(e,"changes"),d=Ni(e,"change");if(d||h){var p={from:a,to:l,text:t.text,removed:t.removed,origin:t.origin};d&&Li(e,"change",e,p),h&&(e.curOp.changeObjs||(e.curOp.changeObjs=[])).push(p)}e.display.selForContextMenu=null}function Pn(e,t,n,r,i){if(r||(r=n),Fo(r,n)<0){var o=r;r=n,n=o}"string"==typeof t&&(t=e.splitLines(t)),Mn(e,{from:n,to:r,text:t,origin:i})}function Rn(e,t){if(!Mi(e,"scrollCursorIntoView")){var n=e.display,r=n.sizer.getBoundingClientRect(),i=null;if(t.top+r.top<0?i=!0:t.bottom+r.top>(window.innerHeight||document.documentElement.clientHeight)&&(i=!1),null!=i&&!Ao){var o=Ui("div","​",null,"position: absolute; top: "+(t.top-n.viewOffset-Ue(e.display))+"px; height: "+(t.bottom-t.top+Ye(e)+n.barHeight)+"px; left: "+t.left+"px; width: 2px;");e.display.lineSpace.appendChild(o),o.scrollIntoView(i),e.display.lineSpace.removeChild(o)}}}function Hn(e,t,n,r){null==r&&(r=0);for(var i=0;i<5;i++){var 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n=0;n=0&&f<=0||u<=0&&f>=0)&&(u<=0&&(s.marker.inclusiveRight&&i.inclusiveLeft?Fo(c.to,n)>=0:Fo(c.to,n)>0)||u>=0&&(s.marker.inclusiveRight&&i.inclusiveLeft?Fo(c.from,r)<=0:Fo(c.from,r)<0)))return!0}}}function xr(e){for(var t;t=gr(e);)e=t.find(-1,!0).line;return e}function br(e){for(var t,n;t=vr(e);)e=t.find(1,!0).line,(n||(n=[])).push(e);return n}function wr(e,t){var n=Jr(e,t),r=xr(n);return n==r?t:ni(r)}function kr(e,t){if(t>e.lastLine())return t;var n,r=Jr(e,t);if(!Sr(e,r))return t;for(;n=vr(r);)r=n.find(1,!0).line;return ni(r)+1}function Sr(e,t){var n=_o&&t.markedSpans;if(n)for(var r,i=0;in.start)return a}throw new Error("Mode "+t.name+" failed to advance stream.")}function Pr(e,t,n,r){function i(e){return{start:f.start,end:f.pos,string:f.current(),type:o||null,state:e?ca(a.mode,u):u}}var o,a=e.doc,l=a.mode;t=me(a,t);var s,c=Jr(a,t.line),u=je(e,t.line,n),f=new 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r=e.getBoundingClientRect(),i=document.elementFromPoint(r.left+1,r.bottom-1);i!=e?e.style.pointerEvents="none":t.set(1e3,n)}e.style.pointerEvents="auto",t.set(1e3,n)},clear:function(){var e=this.horiz.parentNode;e.removeChild(this.horiz),e.removeChild(this.vert)}},m.prototype),g.prototype=_i({update:function(){return{bottom:0,right:0}},setScrollLeft:function(){},setScrollTop:function(){},clear:function(){}},g.prototype),e.scrollbarModel={"native":m,"null":g},L.prototype.signal=function(e,t){Ni(e,t)&&this.events.push(arguments)},L.prototype.finish=function(){for(var e=0;e=9&&n.hasSelection&&(n.hasSelection=null),n.poll()}),Oa(o,"paste",function(e){Mi(r,e)||J(e,r)||(r.state.pasteIncoming=!0,n.fastPoll())}),Oa(o,"cut",t),Oa(o,"copy",t),Oa(e.scroller,"paste",function(t){Yt(e,t)||Mi(r,t)||(r.state.pasteIncoming=!0,n.focus())}),Oa(e.lineSpace,"selectstart",function(t){Yt(e,t)||Aa(t)}),Oa(o,"compositionstart",function(){var 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o=i.sel.primary();t=il&&(o.to().line-o.from().line>100||(n=r.getSelection()).length>1e3); -var a=t?"-":n||r.getSelection();this.textarea.value=a,r.state.focused&&qa(this.textarea),bo&&wo>=9&&(this.hasSelection=a)}else e||(this.prevInput=this.textarea.value="",bo&&wo>=9&&(this.hasSelection=null));this.inaccurateSelection=t}},getField:function(){return this.textarea},supportsTouch:function(){return!1},focus:function(){if("nocursor"!=this.cm.options.readOnly&&(!Eo||Yi()!=this.textarea))try{this.textarea.focus()}catch(e){}},blur:function(){this.textarea.blur()},resetPosition:function(){this.wrapper.style.top=this.wrapper.style.left=0},receivedFocus:function(){this.slowPoll()},slowPoll:function(){var e=this;e.pollingFast||e.polling.set(this.cm.options.pollInterval,function(){e.poll(),e.cm.state.focused&&e.slowPoll()})},fastPoll:function(){function e(){var r=n.poll();r||t?(n.pollingFast=!1,n.slowPoll()):(t=!0,n.polling.set(60,e))}var t=!1,n=this;n.pollingFast=!0,n.polling.set(20,e)},poll:function(){var e=this.cm,t=this.textarea,n=this.prevInput;if(this.contextMenuPending||!e.state.focused||rl(t)&&!n&&!this.composing||e.isReadOnly()||e.options.disableInput||e.state.keySeq)return!1;var r=t.value;if(r==n&&!e.somethingSelected())return!1;if(bo&&wo>=9&&this.hasSelection===r||Oo&&/[\uf700-\uf7ff]/.test(r))return e.display.input.reset(),!1;if(e.doc.sel==e.display.selForContextMenu){var i=r.charCodeAt(0);if(8203!=i||n||(n="​"),8666==i)return this.reset(),this.cm.execCommand("undo")}for(var o=0,a=Math.min(n.length,r.length);o1e3||r.indexOf("\n")>-1?t.value=l.prevInput="":l.prevInput=r,l.composing&&(l.composing.range.clear(),l.composing.range=e.markText(l.composing.start,e.getCursor("to"),{className:"CodeMirror-composing"}))}),!0},ensurePolled:function(){this.pollingFast&&this.poll()&&(this.pollingFast=!1)},onKeyPress:function(){bo&&wo>=9&&(this.hasSelection=null),this.fastPoll()},onContextMenu:function(e){function t(){if(null!=a.selectionStart){var e=i.somethingSelected(),t="​"+(e?a.value:"");a.value="⇚",a.value=t,r.prevInput=e?"":"​",a.selectionStart=1,a.selectionEnd=t.length,o.selForContextMenu=i.doc.sel}}function n(){if(r.contextMenuPending=!1,r.wrapper.style.cssText=f,a.style.cssText=u,bo&&wo<9&&o.scrollbars.setScrollTop(o.scroller.scrollTop=s),null!=a.selectionStart){(!bo||bo&&wo<9)&&t();var e=0,n=function(){o.selForContextMenu==i.doc.sel&&0==a.selectionStart&&a.selectionEnd>0&&"​"==r.prevInput?Ot(i,fa.selectAll)(i):e++<10?o.detectingSelectAll=setTimeout(n,500):o.input.reset()};o.detectingSelectAll=setTimeout(n,200)}}var r=this,i=r.cm,o=i.display,a=r.textarea,l=$t(i,e),s=o.scroller.scrollTop;if(l&&!Lo){var c=i.options.resetSelectionOnContextMenu;c&&i.doc.sel.contains(l)==-1&&Ot(i,Te)(i.doc,de(l),_a);var u=a.style.cssText,f=r.wrapper.style.cssText;r.wrapper.style.cssText="position: absolute";var h=r.wrapper.getBoundingClientRect();if(a.style.cssText="position: absolute; width: 30px; height: 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t=ee(r);zo={lineWise:!0,text:t.text},"cut"==e.type&&r.operation(function(){r.setSelections(t.ranges,0,_a),r.replaceSelection("",null,"cut")})}if(e.clipboardData&&!No)e.preventDefault(),e.clipboardData.clearData(),e.clipboardData.setData("text/plain",zo.text.join("\n"));else{var n=re(),i=n.firstChild;r.display.lineSpace.insertBefore(n,r.display.lineSpace.firstChild),i.value=zo.text.join("\n");var o=document.activeElement;qa(i),setTimeout(function(){r.display.lineSpace.removeChild(n),o.focus()},50)}}}var n=this,r=n.cm,i=n.div=e.lineDiv;te(i),Oa(i,"paste",function(e){Mi(r,e)||J(e,r)}),Oa(i,"compositionstart",function(e){var t=e.data;if(n.composing={sel:r.doc.sel,data:t,startData:t},t){var i=r.doc.sel.primary(),o=r.getLine(i.head.line),a=o.indexOf(t,Math.max(0,i.head.ch-t.length));a>-1&&a<=i.head.ch&&(n.composing.sel=de(Bo(i.head.line,a),Bo(i.head.line,a+t.length)))}}),Oa(i,"compositionupdate",function(e){n.composing.data=e.data}),Oa(i,"compositionend",function(e){var t=n.composing;t&&(e.data==t.startData||/\u200b/.test(e.data)||(t.data=e.data),setTimeout(function(){t.handled||n.applyComposition(t),n.composing==t&&(n.composing=null)},50))}),Oa(i,"touchstart",function(){n.forceCompositionEnd()}),Oa(i,"input",function(){n.composing||!r.isReadOnly()&&n.pollContent()||Et(n.cm,function(){Dt(r)})}),Oa(i,"copy",t),Oa(i,"cut",t)},prepareSelection:function(){var e=He(this.cm,!1);return e.focus=this.cm.state.focused,e},showSelection:function(e,t){e&&this.cm.display.view.length&&((e.focus||t)&&this.showPrimarySelection(),this.showMultipleSelections(e))},showPrimarySelection:function(){var e=window.getSelection(),t=this.cm.doc.sel.primary(),n=le(this.cm,e.anchorNode,e.anchorOffset),r=le(this.cm,e.focusNode,e.focusOffset);if(!n||n.bad||!r||r.bad||0!=Fo(K(n,r),t.from())||0!=Fo(V(n,r),t.to())){var i=oe(this.cm,t.from()),o=oe(this.cm,t.to());if(i||o){var a=this.cm.display.view,l=e.rangeCount&&e.getRangeAt(0);if(i){if(!o){var s=a[a.length-1].measure,c=s.maps?s.maps[s.maps.length-1]:s.map;o={node:c[c.length-1],offset:c[c.length-2]-c[c.length-3]}}}else i={node:a[0].measure.map[2],offset:0};try{var u=Ga(i.node,i.offset,o.offset,o.node)}catch(f){}u&&(!vo&&this.cm.state.focused?(e.collapse(i.node,i.offset),u.collapsed||e.addRange(u)):(e.removeAllRanges(),e.addRange(u)),l&&null==e.anchorNode?e.addRange(l):vo&&this.startGracePeriod()),this.rememberSelection()}}},startGracePeriod:function(){var e=this;clearTimeout(this.gracePeriod),this.gracePeriod=setTimeout(function(){e.gracePeriod=!1,e.selectionChanged()&&e.cm.operation(function(){e.cm.curOp.selectionChanged=!0})},20)},showMultipleSelections:function(e){Gi(this.cm.display.cursorDiv,e.cursors),Gi(this.cm.display.selectionDiv,e.selection)},rememberSelection:function(){var e=window.getSelection();this.lastAnchorNode=e.anchorNode,this.lastAnchorOffset=e.anchorOffset,this.lastFocusNode=e.focusNode,this.lastFocusOffset=e.focusOffset},selectionInEditor:function(){var e=window.getSelection();if(!e.rangeCount)return!1;var t=e.getRangeAt(0).commonAncestorContainer;return Ka(this.div,t)},focus:function(){"nocursor"!=this.cm.options.readOnly&&this.div.focus()},blur:function(){this.div.blur()},getField:function(){return this.div},supportsTouch:function(){return!0},receivedFocus:function(){function e(){t.cm.state.focused&&(t.pollSelection(),t.polling.set(t.cm.options.pollInterval,e))}var t=this;this.selectionInEditor()?this.pollSelection():Et(this.cm,function(){t.cm.curOp.selectionChanged=!0}),this.polling.set(this.cm.options.pollInterval,e)},selectionChanged:function(){var e=window.getSelection();return e.anchorNode!=this.lastAnchorNode||e.anchorOffset!=this.lastAnchorOffset||e.focusNode!=this.lastFocusNode||e.focusOffset!=this.lastFocusOffset},pollSelection:function(){if(!this.composing&&!this.gracePeriod&&this.selectionChanged()){var e=window.getSelection(),t=this.cm;this.rememberSelection();var n=le(t,e.anchorNode,e.anchorOffset),r=le(t,e.focusNode,e.focusOffset);n&&r&&Et(t,function(){Te(t.doc,de(n,r),_a),(n.bad||r.bad)&&(t.curOp.selectionChanged=!0)})}},pollContent:function(){var e=this.cm,t=e.display,n=e.doc.sel.primary(),r=n.from(),i=n.to();if(r.linet.viewTo-1)return!1;var o;if(r.line==t.viewFrom||0==(o=Bt(e,r.line)))var a=ni(t.view[0].line),l=t.view[0].node;else var a=ni(t.view[o].line),l=t.view[o-1].node.nextSibling;var s=Bt(e,i.line);if(s==t.view.length-1)var c=t.viewTo-1,u=t.lineDiv.lastChild;else var c=ni(t.view[s+1].line)-1,u=t.view[s+1].node.previousSibling;for(var f=e.doc.splitLines(ce(e,l,u,a,c)),h=Qr(e.doc,Bo(a,0),Bo(c,Jr(e.doc,c).text.length));f.length>1&&h.length>1;)if(Pi(f)==Pi(h))f.pop(),h.pop(),c--;else{if(f[0]!=h[0])break;f.shift(),h.shift(),a++}for(var d=0,p=0,m=f[0],g=h[0],v=Math.min(m.length,g.length);d1||f[0]||Fo(w,k)?(Pn(e.doc,f,w,k,"+input"),!0):void 0},ensurePolled:function(){this.forceCompositionEnd()},reset:function(){this.forceCompositionEnd()},forceCompositionEnd:function(){this.composing&&!this.composing.handled&&(this.applyComposition(this.composing),this.composing.handled=!0,this.div.blur(),this.div.focus())},applyComposition:function(e){this.cm.isReadOnly()?Ot(this.cm,Dt)(this.cm):e.data&&e.data!=e.startData&&Ot(this.cm,Z)(this.cm,e.data,0,e.sel)},setUneditable:function(e){e.contentEditable="false"},onKeyPress:function(e){e.preventDefault(),this.cm.isReadOnly()||Ot(this.cm,Z)(this.cm,String.fromCharCode(null==e.charCode?e.keyCode:e.charCode),0)},readOnlyChanged:function(e){this.div.contentEditable=String("nocursor"!=e)},onContextMenu:Di,resetPosition:Di,needsContentAttribute:!0},ie.prototype),e.inputStyles={textarea:ne,contenteditable:ie},ue.prototype={primary:function(){return this.ranges[this.primIndex]},equals:function(e){if(e==this)return!0;if(e.primIndex!=this.primIndex||e.ranges.length!=this.ranges.length)return!1;for(var t=0;t=0&&Fo(e,r.to())<=0)return n}return-1}},fe.prototype={from:function(){return K(this.anchor,this.head)},to:function(){return V(this.anchor,this.head)},empty:function(){return this.head.line==this.anchor.line&&this.head.ch==this.anchor.ch}};var jo,Uo,qo,Go={left:0,right:0,top:0,bottom:0},Yo=null,$o=0,Vo=0,Ko=0,Xo=null;bo?Xo=-.53:vo?Xo=15:Co?Xo=-.7:To&&(Xo=-1/3);var Zo=function(e){var t=e.wheelDeltaX,n=e.wheelDeltaY;return null==t&&e.detail&&e.axis==e.HORIZONTAL_AXIS&&(t=e.detail),null==n&&e.detail&&e.axis==e.VERTICAL_AXIS?n=e.detail:null==n&&(n=e.wheelDelta),{x:t,y:n}};e.wheelEventPixels=function(e){var t=Zo(e);return t.x*=Xo,t.y*=Xo,t};var Jo=new Oi,Qo=null,ea=e.changeEnd=function(e){return 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w=Jt(e,c,y,"right");a<=w.bottom&&a>=w.top&&Math.abs(r-w.right)1?1:0);return k}var C=Math.ceil(f/2),L=h+C;if(u){L=h;for(var T=0;Tr?(d=L,g=M,(v=l)&&(g+=1e3),f=C):(h=L,p=M,m=l,f-=C)}}function vn(e){if(null!=e.cachedTextHeight)return e.cachedTextHeight;if(null==Ja){Ja=r("pre");for(var i=0;i<49;++i)Ja.appendChild(document.createTextNode("x")),Ja.appendChild(r("br"));Ja.appendChild(document.createTextNode("x"))}n(e.measure,Ja);var o=Ja.offsetHeight/50;return o>3&&(e.cachedTextHeight=o),t(e.measure),o||1}function yn(e){if(null!=e.cachedCharWidth)return e.cachedCharWidth;var t=r("span","xxxxxxxxxx"),i=r("pre",[t]);n(e.measure,i);var o=t.getBoundingClientRect(),a=(o.right-o.left)/10;return a>2&&(e.cachedCharWidth=a),a||10}function xn(e){for(var t=e.display,n={},r={},i=t.gutters.clientLeft,o=t.gutters.firstChild,a=0;o;o=o.nextSibling,++a)n[e.options.gutters[a]]=o.offsetLeft+o.clientLeft+i,r[e.options.gutters[a]]=o.clientWidth;return{fixedPos:bn(t),gutterTotalWidth:t.gutters.offsetWidth,gutterLeft:n,gutterWidth:r,wrapperWidth:t.wrapper.clientWidth}}function bn(e){return e.scroller.getBoundingClientRect().left-e.sizer.getBoundingClientRect().left}function wn(e){var t=vn(e.display),n=e.options.lineWrapping,r=n&&Math.max(5,e.display.scroller.clientWidth/yn(e.display)-3);return function(i){if(he(e.doc,i))return 0;var o=0;if(i.widgets)for(var a=0;a=e.display.viewTo)return null;if(t-=e.display.viewFrom,t<0)return null;for(var n=e.display.view,r=0;r=e.display.viewTo||l.to().line3&&(i(d,m.top,null,m.bottom),d=u,m.bottoms.bottom||c.bottom==s.bottom&&c.right>s.right)&&(s=c),d0?t.blinker=setInterval(function(){return t.cursorDiv.style.visibility=(n=!n)?"":"hidden"},e.options.cursorBlinkRate):e.options.cursorBlinkRate<0&&(t.cursorDiv.style.visibility="hidden")}}function En(e){e.state.focused||(e.display.input.focus(),In(e))}function On(e){e.state.delayingBlurEvent=!0,setTimeout(function(){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1,Pn(e))},100)}function In(e,t){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1),"nocursor"!=e.options.readOnly&&(e.state.focused||(Ee(e,"focus",e,t),e.state.focused=!0,a(e.display.wrapper,"CodeMirror-focused"),e.curOp||e.display.selForContextMenu==e.doc.sel||(e.display.input.reset(),ca&&setTimeout(function(){return e.display.input.reset(!0)},20)),e.display.input.receivedFocus()),Nn(e))}function Pn(e,t){e.state.delayingBlurEvent||(e.state.focused&&(Ee(e,"blur",e,t),e.state.focused=!1,La(e.display.wrapper,"CodeMirror-focused")),clearInterval(e.display.blinker),setTimeout(function(){e.state.focused||(e.display.shift=!1)},150))}function Rn(e){var t=e.display,n=t.view;if(t.alignWidgets||t.gutters.firstChild&&e.options.fixedGutter){for(var r=bn(t)-t.scroller.scrollLeft+e.doc.scrollLeft,i=t.gutters.offsetWidth,o=r+"px",a=0;a.001||s<-.001)&&(A(i.line,o),Wn(i.line),i.rest))for(var c=0;c=a&&(o=E(t,pe(L(t,s))-e.wrapper.clientHeight),a=s)}return{from:o,to:Math.max(a,o+1)}}function _n(e,t){Math.abs(e.doc.scrollTop-t)<2||(e.doc.scrollTop=t,ia||Mr(e,{top:t}),e.display.scroller.scrollTop!=t&&(e.display.scroller.scrollTop=t),e.display.scrollbars.setScrollTop(t),ia&&Mr(e),wr(e,100))}function Fn(e,t,n){(n?t==e.doc.scrollLeft:Math.abs(e.doc.scrollLeft-t)<2)||(t=Math.min(t,e.display.scroller.scrollWidth-e.display.scroller.clientWidth),e.doc.scrollLeft=t,Rn(e),e.display.scroller.scrollLeft!=t&&(e.display.scroller.scrollLeft=t),e.display.scrollbars.setScrollLeft(t))}function zn(e){var t=e.wheelDeltaX,n=e.wheelDeltaY;return null==t&&e.detail&&e.axis==e.HORIZONTAL_AXIS&&(t=e.detail),null==n&&e.detail&&e.axis==e.VERTICAL_AXIS?n=e.detail:null==n&&(n=e.wheelDelta),{x:t,y:n}}function jn(e){var t=zn(e);return t.x*=ol,t.y*=ol,t}function Un(e,t){var n=zn(t),r=n.x,i=n.y,o=e.display,a=o.scroller,l=a.scrollWidth>a.clientWidth,s=a.scrollHeight>a.clientHeight;if(r&&l||i&&s){if(i&&ya&&ca)e:for(var c=t.target,u=o.view;c!=a;c=c.parentNode)for(var f=0;f(window.innerHeight||document.documentElement.clientHeight)&&(o=!1),null!=o&&!ma){var a=r("div","​",null,"position: absolute;\n top: "+(t.top-n.viewOffset-Ft(e.display))+"px;\n height: "+(t.bottom-t.top+Ut(e)+n.barHeight)+"px;\n left: "+t.left+"px; width: 2px;");e.display.lineSpace.appendChild(a),a.scrollIntoView(o),e.display.lineSpace.removeChild(a)}}}function Zn(e,t,n,r){null==r&&(r=0);for(var i,o=0;o<5;o++){var a=!1;i=hn(e,t);var l=n&&n!=t?hn(e,n):i,s=Qn(e,Math.min(i.left,l.left),Math.min(i.top,l.top)-r,Math.max(i.left,l.left),Math.max(i.bottom,l.bottom)+r),c=e.doc.scrollTop,u=e.doc.scrollLeft;if(null!=s.scrollTop&&(_n(e,s.scrollTop),Math.abs(e.doc.scrollTop-c)>1&&(a=!0)),null!=s.scrollLeft&&(Fn(e,s.scrollLeft),Math.abs(e.doc.scrollLeft-u)>1&&(a=!0)),!a)break}return i}function Jn(e,t,n,r,i){var o=Qn(e,t,n,r,i);null!=o.scrollTop&&_n(e,o.scrollTop),null!=o.scrollLeft&&Fn(e,o.scrollLeft)}function Qn(e,t,n,r,i){var o=e.display,a=vn(e.display);n<0&&(n=0);var l=e.curOp&&null!=e.curOp.scrollTop?e.curOp.scrollTop:o.scroller.scrollTop,s=Gt(e),c={};i-n>s&&(i=n+s);var u=e.doc.height+zt(o),f=nu-a;if(nl+s){var d=Math.min(n,(h?u:i)-s);d!=l&&(c.scrollTop=d)}var p=e.curOp&&null!=e.curOp.scrollLeft?e.curOp.scrollLeft:o.scroller.scrollLeft,m=qt(e)-(e.options.fixedGutter?o.gutters.offsetWidth:0),g=r-t>m;return g&&(r=t+m),t<10?c.scrollLeft=0:tm+p-3&&(c.scrollLeft=r+(g?0:10)-m),c}function er(e,t,n){null==t&&null==n||nr(e),null!=t&&(e.curOp.scrollLeft=(null==e.curOp.scrollLeft?e.doc.scrollLeft:e.curOp.scrollLeft)+t),null!=n&&(e.curOp.scrollTop=(null==e.curOp.scrollTop?e.doc.scrollTop:e.curOp.scrollTop)+n)}function tr(e){nr(e);var t=e.getCursor(),n=t,r=t;e.options.lineWrapping||(n=t.ch?P(t.line,t.ch-1):t,r=P(t.line,t.ch+1)),e.curOp.scrollToPos={from:n,to:r,margin:e.options.cursorScrollMargin,isCursor:!0}}function nr(e){var t=e.curOp.scrollToPos;if(t){e.curOp.scrollToPos=null;var n=dn(e,t.from),r=dn(e,t.to),i=Qn(e,Math.min(n.left,r.left),Math.min(n.top,r.top)-t.margin,Math.max(n.right,r.right),Math.max(n.bottom,r.bottom)+t.margin);e.scrollTo(i.scrollLeft,i.scrollTop)}}function rr(e){e.curOp={cm:e,viewChanged:!1,startHeight:e.doc.height,forceUpdate:!1,updateInput:null,typing:!1,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:!1,updateMaxLine:!1,scrollLeft:null,scrollTop:null,scrollToPos:null,focus:!1,id:++ll},wt(e.curOp)}function ir(e){var t=e.curOp;St(t,function(e){for(var t=0;t=n.viewTo)||n.maxLineChanged&&t.options.lineWrapping,e.update=e.mustUpdate&&new Sr(t,e.mustUpdate&&{top:e.scrollTop,ensure:e.scrollToPos},e.forceUpdate)}function lr(e){e.updatedDisplay=e.mustUpdate&&Lr(e.cm,e.update)}function sr(e){var t=e.cm,n=t.display;e.updatedDisplay&&Hn(t),e.barMeasure=qn(t),n.maxLineChanged&&!t.options.lineWrapping&&(e.adjustWidthTo=Kt(t,n.maxLine,n.maxLine.text.length).left+3,t.display.sizerWidth=e.adjustWidthTo,e.barMeasure.scrollWidth=Math.max(n.scroller.clientWidth,n.sizer.offsetLeft+e.adjustWidthTo+Ut(t)+t.display.barWidth),e.maxScrollLeft=Math.max(0,n.sizer.offsetLeft+e.adjustWidthTo-qt(t))),(e.updatedDisplay||e.selectionChanged)&&(e.preparedSelection=n.input.prepareSelection(e.focus))}function cr(e){var t=e.cm;null!=e.adjustWidthTo&&(t.display.sizer.style.minWidth=e.adjustWidthTo+"px",e.maxScrollLeftt)&&(i.updateLineNumbers=t),e.curOp.viewChanged=!0,t>=i.viewTo)Ba&&ue(e.doc,t)i.viewFrom?vr(e):(i.viewFrom+=r,i.viewTo+=r);else if(t<=i.viewFrom&&n>=i.viewTo)vr(e);else if(t<=i.viewFrom){var o=yr(e,n,n+r,1);o?(i.view=i.view.slice(o.index),i.viewFrom=o.lineN,i.viewTo+=r):vr(e)}else if(n>=i.viewTo){var a=yr(e,t,t,-1);a?(i.view=i.view.slice(0,a.index),i.viewTo=a.lineN):vr(e)}else{var l=yr(e,t,t,-1),s=yr(e,n,n+r,1);l&&s?(i.view=i.view.slice(0,l.index).concat(bt(e,l.lineN,s.lineN)).concat(i.view.slice(s.index)),i.viewTo+=r):vr(e)}var c=i.externalMeasured;c&&(n=i.lineN&&t=r.viewTo)){var o=r.view[Cn(e,t)];if(null!=o.node){var a=o.changes||(o.changes=[]);h(a,n)==-1&&a.push(n)}}}function vr(e){e.display.viewFrom=e.display.viewTo=e.doc.first,e.display.view=[],e.display.viewOffset=0}function yr(e,t,n,r){var i,o=Cn(e,t),a=e.display.view;if(!Ba||n==e.doc.first+e.doc.size)return{index:o,lineN:n};for(var l=e.display.viewFrom,s=0;s0){if(o==a.length-1)return null;i=l+a[o].size-t,o++}else i=l-t;t+=i,n+=i}for(;ue(e.doc,n)!=n;){if(o==(r<0?0:a.length-1))return null;n+=r*a[o-(r<0?1:0)].size,o+=r}return{index:o,lineN:n}}function xr(e,t,n){var r=e.display,i=r.view;0==i.length||t>=r.viewTo||n<=r.viewFrom?(r.view=bt(e,t,n),r.viewFrom=t):(r.viewFrom>t?r.view=bt(e,t,r.viewFrom).concat(r.view):r.viewFromn&&(r.view=r.view.slice(0,Cn(e,n)))),r.viewTo=n}function br(e){for(var t=e.display.view,n=0,r=0;r=e.display.viewTo)){var n=+new Date+e.options.workTime,r=Ke(t.mode,et(e,t.frontier)),i=[];t.iter(t.frontier,Math.min(t.first+t.size,e.display.viewTo+500),function(o){if(t.frontier>=e.display.viewFrom){var a=o.styles,l=o.text.length>e.options.maxHighlightLength,s=Je(e,o,l?Ke(t.mode,r):r,!0);o.styles=s.styles;var c=o.styleClasses,u=s.classes;u?o.styleClasses=u:c&&(o.styleClasses=null);for(var f=!a||a.length!=o.styles.length||c!=u&&(!c||!u||c.bgClass!=u.bgClass||c.textClass!=u.textClass),h=0;!f&&hn)return wr(e,e.options.workDelay),!0}),i.length&&fr(e,function(){for(var t=0;t=r.viewFrom&&n.visible.to<=r.viewTo&&(null==r.updateLineNumbers||r.updateLineNumbers>=r.viewTo)&&r.renderedView==r.view&&0==br(e))return!1;Dn(e)&&(vr(e),n.dims=xn(e));var a=i.first+i.size,l=Math.max(n.visible.from-e.options.viewportMargin,i.first),s=Math.min(a,n.visible.to+e.options.viewportMargin);r.viewFroms&&r.viewTo-s<20&&(s=Math.min(a,r.viewTo)),Ba&&(l=ue(e.doc,l),s=fe(e.doc,s));var c=l!=r.viewFrom||s!=r.viewTo||r.lastWrapHeight!=n.wrapperHeight||r.lastWrapWidth!=n.wrapperWidth;xr(e,l,s),r.viewOffset=pe(L(e.doc,r.viewFrom)),e.display.mover.style.top=r.viewOffset+"px";var u=br(e);if(!c&&0==u&&!n.force&&r.renderedView==r.view&&(null==r.updateLineNumbers||r.updateLineNumbers>=r.viewTo))return!1;var f=o();return u>4&&(r.lineDiv.style.display="none"),Ar(e,r.updateLineNumbers,n.dims),u>4&&(r.lineDiv.style.display=""),r.renderedView=r.view,f&&o()!=f&&f.offsetHeight&&f.focus(),t(r.cursorDiv),t(r.selectionDiv),r.gutters.style.height=r.sizer.style.minHeight=0,c&&(r.lastWrapHeight=n.wrapperHeight,r.lastWrapWidth=n.wrapperWidth,wr(e,400)),r.updateLineNumbers=null,!0}function Tr(e,t){for(var n=t.viewport,r=!0;(r&&e.options.lineWrapping&&t.oldDisplayWidth!=qt(e)||(n&&null!=n.top&&(n={top:Math.min(e.doc.height+zt(e.display)-Gt(e),n.top)}),t.visible=Bn(e.display,e.doc,n),!(t.visible.from>=e.display.viewFrom&&t.visible.to<=e.display.viewTo)))&&Lr(e,t);r=!1){Hn(e);var i=qn(e);Ln(e),$n(e,i),Er(e,i)}t.signal(e,"update",e),e.display.viewFrom==e.display.reportedViewFrom&&e.display.viewTo==e.display.reportedViewTo||(t.signal(e,"viewportChange",e,e.display.viewFrom,e.display.viewTo),e.display.reportedViewFrom=e.display.viewFrom,e.display.reportedViewTo=e.display.viewTo)}function Mr(e,t){var n=new Sr(e,t);if(Lr(e,n)){Hn(e),Tr(e,n);var r=qn(e);Ln(e),$n(e,r),Er(e,r),n.finish()}}function Ar(e,n,r){function i(t){var n=t.nextSibling;return ca&&ya&&e.display.currentWheelTarget==t?t.style.display="none":t.parentNode.removeChild(t),n}for(var o=e.display,a=e.options.lineNumbers,l=o.lineDiv,s=l.firstChild,c=o.view,u=o.viewFrom,f=0;f-1&&(p=!1),Tt(e,d,u,r)),p&&(t(d.lineNumber),d.lineNumber.appendChild(document.createTextNode(I(e.options,u)))),s=d.node.nextSibling}else{var m=Rt(e,d,u,r);l.insertBefore(m,s)}u+=d.size}for(;s;)s=i(s)}function Nr(e){var t=e.display.gutters.offsetWidth;e.display.sizer.style.marginLeft=t+"px"}function Er(e,t){e.display.sizer.style.minHeight=t.docHeight+"px",e.display.heightForcer.style.top=t.docHeight+"px",e.display.gutters.style.height=t.docHeight+e.display.barHeight+Ut(e)+"px"}function Or(e){var n=e.display.gutters,i=e.options.gutters;t(n);for(var o=0;o-1&&!e.lineNumbers&&(e.gutters=e.gutters.slice(0),e.gutters.splice(t,1))}function Pr(e,t){this.ranges=e,this.primIndex=t}function Rr(e,t){this.anchor=e,this.head=t}function Dr(e,t){var n=e[t];e.sort(function(e,t){return R(e.from(),t.from())}),t=h(e,n);for(var r=1;r=0){var a=W(o.from(),i.from()),l=H(o.to(),i.to()),s=o.empty()?i.from()==i.head:o.from()==o.head;r<=t&&--t,e.splice(--r,2,new Rr(s?l:a,s?a:l))}}return new Pr(e,t)}function Hr(e,t){return new Pr([new Rr(e,t||e)],0)}function Wr(e){return e.text?P(e.from.line+e.text.length-1,m(e.text).length+(1==e.text.length?e.from.ch:0)):e.to}function Br(e,t){if(R(e,t.from)<0)return e;if(R(e,t.to)<=0)return Wr(t);var n=e.line+t.text.length-(t.to.line-t.from.line)-1,r=e.ch;return e.line==t.to.line&&(r+=Wr(t).ch-t.to.ch),P(n,r)}function _r(e,t){for(var n=[],r=0;r1&&e.remove(l.line+1,p-1),e.insert(l.line+1,y)}Ct(e,"change",e,t)}function Yr(e,t,n){function r(e,i,o){if(e.linked)for(var a=0;a1&&!e.done[e.done.length-2].ranges?(e.done.pop(),m(e.done)):void 0}function Jr(e,t,n,r){var i=e.history;i.undone.length=0;var o,a,l=+new Date;if((i.lastOp==r||i.lastOrigin==t.origin&&t.origin&&("+"==t.origin.charAt(0)&&e.cm&&i.lastModTime>l-e.cm.options.historyEventDelay||"*"==t.origin.charAt(0)))&&(o=Zr(i,i.lastOp==r)))a=m(o.changes),0==R(t.from,t.to)&&0==R(t.from,a.to)?a.to=Wr(t):o.changes.push(Kr(e,t));else{var s=m(i.done);for(s&&s.ranges||ti(e.sel,i.done),o={changes:[Kr(e,t)],generation:i.generation},i.done.push(o);i.done.length>i.undoDepth;)i.done.shift(),i.done[0].ranges||i.done.shift()}i.done.push(n),i.generation=++i.maxGeneration,i.lastModTime=i.lastSelTime=l,i.lastOp=i.lastSelOp=r,i.lastOrigin=i.lastSelOrigin=t.origin,a||Ee(e,"historyAdded")}function Qr(e,t,n,r){var i=t.charAt(0);return"*"==i||"+"==i&&n.ranges.length==r.ranges.length&&n.somethingSelected()==r.somethingSelected()&&new Date-e.history.lastSelTime<=(e.cm?e.cm.options.historyEventDelay:500)}function ei(e,t,n,r){var i=e.history,o=r&&r.origin;n==i.lastSelOp||o&&i.lastSelOrigin==o&&(i.lastModTime==i.lastSelTime&&i.lastOrigin==o||Qr(e,o,m(i.done),t))?i.done[i.done.length-1]=t:ti(t,i.done),i.lastSelTime=+new Date,i.lastSelOrigin=o,i.lastSelOp=n,r&&r.clearRedo!==!1&&Xr(i.undone)}function ti(e,t){var n=m(t);n&&n.ranges&&n.equals(e)||t.push(e)}function ni(e,t,n,r){var i=t["spans_"+e.id],o=0;e.iter(Math.max(e.first,n),Math.min(e.first+e.size,r),function(n){n.markedSpans&&((i||(i=t["spans_"+e.id]={}))[o]=n.markedSpans),++o})}function ri(e){if(!e)return null;for(var t,n=0;n-1&&(m(l)[f]=c[f],delete c[f])}}}return r}function li(e,t,n,r){if(e.cm&&e.cm.display.shift||e.extend){var i=t.anchor;if(r){var o=R(n,i)<0;o!=R(r,i)<0?(i=n,n=r):o!=R(n,r)<0&&(n=r)}return new Rr(i,n)}return new Rr(r||n,n)}function si(e,t,n,r){pi(e,new Pr([li(e,e.sel.primary(),t,n)],0),r)}function ci(e,t,n){for(var r=[],i=0;i=t.ch:l.to>t.ch))){if(i&&(Ee(s,"beforeCursorEnter"),s.explicitlyCleared)){if(o.markedSpans){--a;continue}break}if(!s.atomic)continue;if(n){var c=s.find(r<0?1:-1),u=void 0;if((r<0?s.inclusiveRight:s.inclusiveLeft)&&(c=wi(e,c,-r,c&&c.line==t.line?o:null)),c&&c.line==t.line&&(u=R(c,n))&&(r<0?u<0:u>0))return xi(e,c,t,r,i)}var f=s.find(r<0?-1:1);return(r<0?s.inclusiveLeft:s.inclusiveRight)&&(f=wi(e,f,r,f.line==t.line?o:null)),f?xi(e,f,t,r,i):null}}return t}function bi(e,t,n,r,i){var o=r||1,a=xi(e,t,n,o,i)||!i&&xi(e,t,n,o,!0)||xi(e,t,n,-o,i)||!i&&xi(e,t,n,-o,!0);return a?a:(e.cantEdit=!0,P(e.first,0))}function wi(e,t,n,r){return n<0&&0==t.ch?t.line>e.first?_(e,P(t.line-1)):null:n>0&&t.ch==(r||L(e,t.line)).text.length?t.line=0;--i)Li(e,{from:r[i].from,to:r[i].to,text:i?[""]:t.text});else Li(e,t)}}function Li(e,t){if(1!=t.text.length||""!=t.text[0]||0!=R(t.from,t.to)){var n=_r(e,t);Jr(e,t,n,e.cm?e.cm.curOp.id:NaN),Ai(e,t,n,X(e,t));var r=[];Yr(e,function(e,n){n||h(r,e.history)!=-1||(Pi(e.history,t),r.push(e.history)),Ai(e,t,null,X(e,t))})}}function Ti(e,t,n){if(!e.cm||!e.cm.state.suppressEdits||n){for(var r,i=e.history,o=e.sel,a="undo"==t?i.done:i.undone,l="undo"==t?i.undone:i.done,s=0;s=0;--d){var p=f(d);if(p)return p.v}}}}function Mi(e,t){if(0!=t&&(e.first+=t,e.sel=new Pr(g(e.sel.ranges,function(e){return new Rr(P(e.anchor.line+t,e.anchor.ch),P(e.head.line+t,e.head.ch))}),e.sel.primIndex),e.cm)){mr(e.cm,e.first,e.first-t,t);for(var n=e.cm.display,r=n.viewFrom;re.lastLine())){if(t.from.lineo&&(t={from:t.from,to:P(o,L(e,o).text.length),text:[t.text[0]],origin:t.origin}),t.removed=T(e,t.from,t.to),n||(n=_r(e,t)),e.cm?Ni(e.cm,t,r):Gr(e,t,r),mi(e,n,Oa)}}function Ni(e,t,n){var r=e.doc,i=e.display,o=t.from,a=t.to,l=!1,s=o.line;e.options.lineWrapping||(s=N(se(L(r,o.line))),r.iter(s,a.line+1,function(e){if(e==i.maxLine)return l=!0,!0})),r.sel.contains(t.from,t.to)>-1&&Ie(e),Gr(r,t,n,wn(e)),e.options.lineWrapping||(r.iter(s,o.line+t.text.length,function(e){var t=me(e);t>i.maxLineLength&&(i.maxLine=e,i.maxLineLength=t,i.maxLineChanged=!0,l=!1)}),l&&(e.curOp.updateMaxLine=!0)),r.frontier=Math.min(r.frontier,o.line),wr(e,400);var c=t.text.length-(a.line-o.line)-1;t.full?mr(e):o.line!=a.line||1!=t.text.length||qr(e.doc,t)?mr(e,o.line,a.line+1,c):gr(e,o.line,"text");var u=Pe(e,"changes"),f=Pe(e,"change");if(f||u){var h={from:o,to:a,text:t.text,removed:t.removed,origin:t.origin};f&&Ct(e,"change",e,h),u&&(e.curOp.changeObjs||(e.curOp.changeObjs=[])).push(h)}e.display.selForContextMenu=null}function Ei(e,t,n,r,i){if(r||(r=n),R(r,n)<0){var o=r;r=n,n=o}"string"==typeof t&&(t=e.splitLines(t)),Ci(e,{from:n,to:r,text:t,origin:i})}function Oi(e,t,n,r){n0||0==l&&a.clearWhenEmpty!==!1)return a;if(a.replacedWith&&(a.collapsed=!0,a.widgetNode=r("span",[a.replacedWith],"CodeMirror-widget"),i.handleMouseEvents||a.widgetNode.setAttribute("cm-ignore-events","true"),i.insertLeft&&(a.widgetNode.insertLeft=!0)),a.collapsed){if(le(e,t.line,t,n,a)||t.line!=n.line&&le(e,n.line,t,n,a))throw new Error("Inserting collapsed marker partially overlapping an existing one");U()}a.addToHistory&&Jr(e,{from:t,to:n,origin:"markText"},e.sel,NaN);var s,u=t.line,f=e.cm;if(e.iter(u,n.line+1,function(e){f&&a.collapsed&&!f.options.lineWrapping&&se(e)==f.display.maxLine&&(s=!0),a.collapsed&&u!=t.line&&A(e,0),$(e,new q(a,u==t.line?t.ch:null,u==n.line?n.ch:null)),++u}),a.collapsed&&e.iter(t.line,n.line+1,function(t){he(e,t)&&A(t,0)}),a.clearOnEnter&&ja(a,"beforeCursorEnter",function(){return a.clear()}),a.readOnly&&(j(),(e.history.done.length||e.history.undone.length)&&e.clearHistory()),a.collapsed&&(a.id=++sl,a.atomic=!0),f){if(s&&(f.curOp.updateMaxLine=!0),a.collapsed)mr(f,t.line,n.line+1);else if(a.className||a.title||a.startStyle||a.endStyle||a.css)for(var h=t.line;h<=n.line;h++)gr(f,h,"text");a.atomic&&vi(f.doc),Ct(f,"markerAdded",f,a)}return a}function ji(e,t){var n=this;this.markers=e,this.primary=t;for(var r=0;r-1)return t.state.draggingText(e),void setTimeout(function(){return t.display.input.focus()},20);try{var c=e.dataTransfer.getData("Text");if(c){var u;if(t.state.draggingText&&!t.state.draggingText.copy&&(u=t.listSelections()),mi(t.doc,Hr(n,n)),u)for(var f=0;f=0;t--)Ei(e.doc,"",r[t].from,r[t].to,"+delete");tr(e)})}function so(e,t){var n=L(e.doc,t),r=se(n);r!=n&&(t=N(r));var i=Me(r),o=i?i[0].level%2?we(r):be(r):0;return P(t,o)}function co(e,t){for(var n,r=L(e.doc,t);n=ae(r);)r=n.find(1,!0).line,t=null;var i=Me(r),o=i?i[0].level%2?be(r):we(r):r.text.length;return P(null==t?N(r):t,o)}function uo(e,t){var n=so(e,t.line),r=L(e.doc,n.line),i=Me(r);if(!i||0==i[0].level){var o=Math.max(0,r.text.search(/\S/)),a=t.line==n.line&&t.ch<=o&&t.ch;return P(n.line,a?0:o)}return n}function fo(e,t,n){if("string"==typeof t&&(t=bl[t],!t))return!1;e.display.input.ensurePolled();var r=e.display.shift,i=!1;try{e.isReadOnly()&&(e.state.suppressEdits=!0),n&&(e.display.shift=!1),i=t(e)!=Ea}finally{e.display.shift=r,e.state.suppressEdits=!1}return i}function ho(e,t,n){for(var r=0;ri-400&&0==R(xl.pos,n)?r="triple":yl&&yl.time>i-400&&0==R(yl.pos,n)?(r="double",xl={time:i,pos:n}):(r="single",yl={time:i,pos:n});var a,l=e.doc.sel,c=ya?t.metaKey:t.ctrlKey;e.options.dragDrop&&Ua&&!e.isReadOnly()&&"single"==r&&(a=l.contains(n))>-1&&(R((a=l.ranges[a]).from(),n)<0||n.xRel>0)&&(R(a.to(),n)>0||n.xRel<0)?So(e,t,n,c):Co(e,t,n,r,c)}function So(e,t,n,r){var i=e.display,o=+new Date,a=hr(e,function(l){ca&&(i.scroller.draggable=!1),e.state.draggingText=!1,Ne(document,"mouseup",a),Ne(i.scroller,"drop",a),Math.abs(t.clientX-l.clientX)+Math.abs(t.clientY-l.clientY)<10&&(De(l),!r&&+new Date-200b&&i.push(new Rr(P(g,b),P(g,d(y,c,o))))}i.length||i.push(new Rr(n,n)),pi(f,Dr(m.ranges.slice(0,p).concat(i),p),{origin:"*mouse",scroll:!1}),e.scrollIntoView(t)}else{var w=h,k=w.anchor,S=t;if("single"!=r){var C;C="double"==r?e.findWordAt(t):new Rr(P(t.line,0),_(f,P(t.line+1,0))),R(C.anchor,k)>0?(S=C.head,k=W(w.from(),C.anchor)):(S=C.anchor,k=H(w.to(),C.head))}var T=m.ranges.slice(0);T[p]=new Rr(_(f,k),S),pi(f,Dr(T,p),Ia)}}function l(t){var n=++w,i=Sn(e,t,!0,"rect"==r);if(i)if(0!=R(i,x)){e.curOp.focus=o(),a(i);var s=Bn(c,f);(i.line>=s.to||i.lineb.bottom?20:0;u&&setTimeout(hr(e,function(){w==n&&(c.scroller.scrollTop+=u,l(t))}),50)}}function s(t){e.state.selectingText=!1,w=1/0,De(t),c.input.focus(),Ne(document,"mousemove",k),Ne(document,"mouseup",S),f.history.lastSelOrigin=null}var c=e.display,f=e.doc;De(t);var h,p,m=f.sel,g=m.ranges;if(i&&!t.shiftKey?(p=f.sel.contains(n),h=p>-1?g[p]:new Rr(n,n)):(h=f.sel.primary(),p=f.sel.primIndex),xa?t.shiftKey&&t.metaKey:t.altKey)r="rect",i||(h=new Rr(n,n)),n=Sn(e,t,!0,!0),p=-1;else if("double"==r){var v=e.findWordAt(n);h=e.display.shift||f.extend?li(f,h,v.anchor,v.head):v}else if("triple"==r){var y=new Rr(P(n.line,0),_(f,P(n.line+1,0)));h=e.display.shift||f.extend?li(f,h,y.anchor,y.head):y}else h=li(f,h,n);i?p==-1?(p=g.length,pi(f,Dr(g.concat([h]),p),{scroll:!1,origin:"*mouse"})):g.length>1&&g[p].empty()&&"single"==r&&!t.shiftKey?(pi(f,Dr(g.slice(0,p).concat(g.slice(p+1)),0),{scroll:!1,origin:"*mouse"}),m=f.sel):ui(f,p,h,Ia):(p=0,pi(f,new Pr([h],0),Ia),m=f.sel);var x=n,b=c.wrapper.getBoundingClientRect(),w=0,k=hr(e,function(e){Fe(e)?l(e):s(e)}),S=hr(e,s);e.state.selectingText=S,ja(document,"mousemove",k),ja(document,"mouseup",S)}function Lo(e,t,n,r){var i,o;try{i=t.clientX,o=t.clientY}catch(e){return!1}if(i>=Math.floor(e.display.gutters.getBoundingClientRect().right))return!1;r&&De(t);var a=e.display,l=a.lineDiv.getBoundingClientRect();if(o>l.bottom||!Pe(e,n))return We(t);o-=l.top-a.viewOffset;for(var s=0;s=i){var u=E(e.doc,o),f=e.options.gutters[s];return Ee(e,n,e,u,f,t),We(t)}}}function To(e,t){return Lo(e,t,"gutterClick",!0)}function Mo(e,t){_t(e.display,t)||Ao(e,t)||Oe(e,t,"contextmenu")||e.display.input.onContextMenu(t)}function Ao(e,t){return!!Pe(e,"gutterContextMenu")&&Lo(e,t,"gutterContextMenu",!1)}function No(e){e.display.wrapper.className=e.display.wrapper.className.replace(/\s*cm-s-\S+/g,"")+e.options.theme.replace(/(^|\s)\s*/g," cm-s-"),an(e)}function Eo(e){function t(t,r,i,o){e.defaults[t]=r,i&&(n[t]=o?function(e,t,n){n!=Sl&&i(e,t,n)}:i)}var n=e.optionHandlers;e.defineOption=t,e.Init=Sl,t("value","",function(e,t){return e.setValue(t)},!0),t("mode",null,function(e,t){e.doc.modeOption=t,jr(e)},!0),t("indentUnit",2,jr,!0),t("indentWithTabs",!1),t("smartIndent",!0),t("tabSize",4,function(e){Ur(e),an(e),mr(e)},!0),t("lineSeparator",null,function(e,t){if(e.doc.lineSep=t,t){var n=[],r=e.doc.first;e.doc.iter(function(e){for(var i=0;;){var o=e.text.indexOf(t,i);if(o==-1)break;i=o+t.length,n.push(P(r,o))}r++});for(var i=n.length-1;i>=0;i--)Ei(e.doc,t,n[i],P(n[i].line,n[i].ch+t.length))}}),t("specialChars",/[\u0000-\u001f\u007f\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g,function(e,t,n){e.state.specialChars=new RegExp(t.source+(t.test("\t")?"":"|\t"),"g"),n!=Sl&&e.refresh()}),t("specialCharPlaceholder",dt,function(e){return e.refresh()},!0),t("electricChars",!0),t("inputStyle",va?"contenteditable":"textarea",function(){throw new Error("inputStyle can not (yet) be changed in a running editor")},!0),t("spellcheck",!1,function(e,t){return e.getInputField().spellcheck=t},!0),t("rtlMoveVisually",!ba),t("wholeLineUpdateBefore",!0),t("theme","default",function(e){No(e),Oo(e)},!0),t("keyMap","default",function(e,t,n){var r=ao(t),i=n!=Sl&&ao(n);i&&i.detach&&i.detach(e,r),r.attach&&r.attach(e,i||null)}),t("extraKeys",null),t("lineWrapping",!1,Po,!0),t("gutters",[],function(e){Ir(e.options),Oo(e)},!0),t("fixedGutter",!0,function(e,t){e.display.gutters.style.left=t?bn(e.display)+"px":"0",e.refresh()},!0),t("coverGutterNextToScrollbar",!1,function(e){return $n(e)},!0),t("scrollbarStyle","native",function(e){Kn(e),$n(e),e.display.scrollbars.setScrollTop(e.doc.scrollTop),e.display.scrollbars.setScrollLeft(e.doc.scrollLeft)},!0),t("lineNumbers",!1,function(e){Ir(e.options),Oo(e)},!0),t("firstLineNumber",1,Oo,!0),t("lineNumberFormatter",function(e){return e},Oo,!0),t("showCursorWhenSelecting",!1,Ln,!0),t("resetSelectionOnContextMenu",!0),t("lineWiseCopyCut",!0),t("readOnly",!1,function(e,t){"nocursor"==t?(Pn(e),e.display.input.blur(),e.display.disabled=!0):e.display.disabled=!1,e.display.input.readOnlyChanged(t)}),t("disableInput",!1,function(e,t){t||e.display.input.reset()},!0),t("dragDrop",!0,Io),t("allowDropFileTypes",null),t("cursorBlinkRate",530),t("cursorScrollMargin",0),t("cursorHeight",1,Ln,!0),t("singleCursorHeightPerLine",!0,Ln,!0),t("workTime",100),t("workDelay",100),t("flattenSpans",!0,Ur,!0),t("addModeClass",!1,Ur,!0),t("pollInterval",100),t("undoDepth",200,function(e,t){return e.doc.history.undoDepth=t}),t("historyEventDelay",1250),t("viewportMargin",10,function(e){return e.refresh()},!0),t("maxHighlightLength",1e4,Ur,!0),t("moveInputWithCursor",!0,function(e,t){t||e.display.input.resetPosition()}),t("tabindex",null,function(e,t){return e.display.input.getField().tabIndex=t||""}),t("autofocus",null)}function Oo(e){Or(e),mr(e),setTimeout(function(){return Rn(e)},20)}function Io(e,t,n){var r=n&&n!=Sl;if(!t!=!r){var i=e.display.dragFunctions,o=t?ja:Ne;o(e.display.scroller,"dragstart",i.start),o(e.display.scroller,"dragenter",i.enter),o(e.display.scroller,"dragover",i.over),o(e.display.scroller,"dragleave",i.leave),o(e.display.scroller,"drop",i.drop)}}function Po(e){e.options.lineWrapping?(a(e.display.wrapper,"CodeMirror-wrap"),e.display.sizer.style.minWidth="",e.display.sizerWidth=null):(La(e.display.wrapper,"CodeMirror-wrap"),ge(e)),kn(e),mr(e),an(e),setTimeout(function(){return $n(e)},100)}function Ro(e,t){var n=this;if(!(this instanceof Ro))return new Ro(e,t);this.options=t=t?c(t):{},c(Cl,t,!1),Ir(t);var r=t.value;"string"==typeof r&&(r=new ul(r,t.mode,null,t.lineSeparator)),this.doc=r;var i=new Ro.inputStyles[t.inputStyle](this),o=this.display=new C(e,r,i);o.wrapper.CodeMirror=this,Or(this),No(this),t.lineWrapping&&(this.display.wrapper.className+=" 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o,a={end:0};ja(i.scroller,"touchstart",function(t){if(!Oe(e,t)&&!n(t)){i.input.ensurePolled(),clearTimeout(o);var r=+new Date;i.activeTouch={start:r,moved:!1,prev:r-a.end<=300?a:null},1==t.touches.length&&(i.activeTouch.left=t.touches[0].pageX,i.activeTouch.top=t.touches[0].pageY)}}),ja(i.scroller,"touchmove",function(){i.activeTouch&&(i.activeTouch.moved=!0)}),ja(i.scroller,"touchend",function(n){var o=i.activeTouch;if(o&&!_t(i,n)&&null!=o.left&&!o.moved&&new Date-o.start<300){var a,l=e.coordsChar(i.activeTouch,"page");a=!o.prev||r(o,o.prev)?new Rr(l,l):!o.prev.prev||r(o,o.prev.prev)?e.findWordAt(l):new Rr(P(l.line,0),_(e.doc,P(l.line+1,0))),e.setSelection(a.anchor,a.head),e.focus(),De(n)}t()}),ja(i.scroller,"touchcancel",t),ja(i.scroller,"scroll",function(){i.scroller.clientHeight&&(_n(e,i.scroller.scrollTop),Fn(e,i.scroller.scrollLeft,!0),Ee(e,"scroll",e))}),ja(i.scroller,"mousewheel",function(t){return Un(e,t)}),ja(i.scroller,"DOMMouseScroll",function(t){return Un(e,t)}),ja(i.wrapper,"scroll",function(){return i.wrapper.scrollTop=i.wrapper.scrollLeft=0}),i.dragFunctions={enter:function(t){Oe(e,t)||Be(t)},over:function(t){Oe(e,t)||(Ki(e,t),Be(t))},start:function(t){return Vi(e,t)},drop:hr(e,$i),leave:function(t){Oe(e,t)||Xi(e)}};var l=i.input.getField();ja(l,"keyup",function(t){return xo.call(e,t)}),ja(l,"keydown",hr(e,vo)),ja(l,"keypress",hr(e,bo)),ja(l,"focus",function(t){return In(e,t)}),ja(l,"blur",function(t){return Pn(e,t)})}function Ho(e,t,n,r){var i,o=e.doc;null==n&&(n="add"),"smart"==n&&(o.mode.indent?i=et(e,t):n="prev");var a=e.options.tabSize,l=L(o,t),s=u(l.text,null,a);l.stateAfter&&(l.stateAfter=null);var c,f=l.text.match(/^\s*/)[0];if(r||/\S/.test(l.text)){if("smart"==n&&(c=o.mode.indent(i,l.text.slice(f.length),l.text),c==Ea||c>150)){if(!r)return;n="prev"}}else c=0,n="not";"prev"==n?c=t>o.first?u(L(o,t-1).text,null,a):0:"add"==n?c=s+e.options.indentUnit:"subtract"==n?c=s-e.options.indentUnit:"number"==typeof n&&(c=s+n),c=Math.max(0,c);var h="",d=0;if(e.options.indentWithTabs)for(var m=Math.floor(c/a);m;--m)d+=a,h+="\t";if(d1)if(Ml&&Ml.text.join("\n")==t){if(r.ranges.length%Ml.text.length==0){s=[];for(var c=0;c=0;f--){var h=r.ranges[f],d=h.from(),p=h.to();h.empty()&&(n&&n>0?d=P(d.line,d.ch-n):e.state.overwrite&&!a?p=P(p.line,Math.min(L(o,p.line).text.length,p.ch+m(l).length)):Ml&&Ml.lineWise&&Ml.text.join("\n")==t&&(d=p=P(d.line,0))),u=e.curOp.updateInput;var v={from:d,to:p,text:s?s[f%s.length]:l,origin:i||(a?"paste":e.state.cutIncoming?"cut":"+input")};Ci(e.doc,v),Ct(e,"inputRead",e,v)}t&&!a&&Fo(e,t),tr(e),e.curOp.updateInput=u,e.curOp.typing=!0,e.state.pasteIncoming=e.state.cutIncoming=!1}function _o(e,t){var n=e.clipboardData&&e.clipboardData.getData("Text");if(n)return e.preventDefault(),t.isReadOnly()||t.options.disableInput||fr(t,function(){return Bo(t,n,0,null,"paste")}),!0}function Fo(e,t){if(e.options.electricChars&&e.options.smartIndent)for(var n=e.doc.sel,r=n.ranges.length-1;r>=0;r--){var i=n.ranges[r];if(!(i.head.ch>100||r&&n.ranges[r-1].head.line==i.head.line)){var o=e.getModeAt(i.head),a=!1;if(o.electricChars){for(var l=0;l-1){a=Ho(e,i.head.line,"smart");break}}else o.electricInput&&o.electricInput.test(L(e.doc,i.head.line).text.slice(0,i.head.ch))&&(a=Ho(e,i.head.line,"smart"));a&&Ct(e,"electricInput",e,i.head.line)}}}function zo(e){for(var t=[],n=[],r=0;rr&&(Ho(t,o.head.line,e,!0),r=o.head.line,i==t.doc.sel.primIndex&&tr(t));else{var a=o.from(),l=o.to(),s=Math.max(r,a.line);r=Math.min(t.lastLine(),l.line-(l.ch?0:1))+1;for(var c=s;c0&&ui(t.doc,i,new Rr(a,u[i].to()),Oa)}}}),getTokenAt:function(e,t){return it(this,e,t)},getLineTokens:function(e,t){return it(this,P(e),t,!0)},getTokenTypeAt:function(e){e=_(this.doc,e);var t,n=Qe(this,L(this.doc,e.line)),r=0,i=(n.length-1)/2,o=e.ch;if(0==o)t=n[2];else for(;;){var a=r+i>>1;if((a?n[2*a-1]:0)>=o)i=a;else{if(!(n[2*a+1]o&&(e=o,i=!0),r=L(this.doc,e)}else r=e;return cn(this,r,{top:0,left:0},t||"page",n).top+(i?this.doc.height-pe(r):0)},defaultTextHeight:function(){return vn(this.display)},defaultCharWidth:function(){return yn(this.display)},getViewport:function(){return{from:this.display.viewFrom,to:this.display.viewTo}},addWidget:function(e,t,n,r,i){var o=this.display;e=hn(this,_(this.doc,e));var a=e.bottom,l=e.left;if(t.style.position="absolute",t.setAttribute("cm-ignore-events","true"),this.display.input.setUneditable(t),o.sizer.appendChild(t),"over"==r)a=e.top;else if("above"==r||"near"==r){var s=Math.max(o.wrapper.clientHeight,this.doc.height),c=Math.max(o.sizer.clientWidth,o.lineSpace.clientWidth);("above"==r||e.bottom+t.offsetHeight>s)&&e.top>t.offsetHeight?a=e.top-t.offsetHeight:e.bottom+t.offsetHeight<=s&&(a=e.bottom),l+t.offsetWidth>c&&(l=c-t.offsetWidth)}t.style.top=a+"px",t.style.left=t.style.right="","right"==i?(l=o.sizer.clientWidth-t.offsetWidth,t.style.right="0px"):("left"==i?l=0:"middle"==i&&(l=(o.sizer.clientWidth-t.offsetWidth)/2),t.style.left=l+"px"),n&&Jn(this,l,a,l+t.offsetWidth,a+t.offsetHeight)},triggerOnKeyDown:dr(vo),triggerOnKeyPress:dr(bo),triggerOnKeyUp:xo,execCommand:function(e){if(bl.hasOwnProperty(e))return bl[e].call(null,this)},triggerElectric:dr(function(e){Fo(this,e)}),findPosH:function(e,t,n,r){var i=this,o=1;t<0&&(o=-1,t=-t);for(var a=_(this.doc,e),l=0;l0&&l(n.charAt(r-1));)--r;for(;i.5)&&kn(this),Ee(this,"refresh",this)}),swapDoc:dr(function(e){var t=this.doc;return 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