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https://github.com/Ionaru/easy-markdown-editor
synced 2025-08-17 06:02:44 -06:00
WIP: Working prototype with selective levels
This commit is contained in:
Pierre-Henri Lavigne
parent
93c60bcf28
commit
6d0174fd46
@ -2205,18 +2205,51 @@ EasyMDE.prototype.render = function (el) {
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}
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if (options.parsingConfig.headingLevels) {
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// If the *headingLevels* argument is present, set our custom modifiers
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var makeBiggerHeadline = function(headline, from, to) {
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var headlineMakeBigger = function(headline, from, to) {
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headline = headline || '';
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if (!from || !to) {
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if (!from || !to || from >= to) {
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return '';
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}
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var level = '';
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while (from < to) {
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level += '#';
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from++;
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if (!headline.length) {
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while (from < to) {
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level += '#';
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from++;
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}
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level += ' ';
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return level;
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}
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else {
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while (to > 0) {
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level += '#';
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to--;
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}
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level += ' ';
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return /#/.test(headline) ? headline.replace(/^[#]+\s*/, level) : level;
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}
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};
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var headlineMakeSmaller = function(headline, from, to) {
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headline = headline || '';
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if (!from || !to || from <= to) {
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return '';
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}
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var level = '';
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if (!headline.length) {
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while (from > to) {
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level += '#';
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from--;
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}
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level += ' ';
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return level;
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}
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else {
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while (to > 0) {
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level += '#';
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to--;
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}
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level += ' ';
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return /#/.test(headline) ? headline.replace(/^[#]+\s*/, level) : level;
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}
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level += ' ';
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return /#/.test(headline) ? headline.replace(/#\s*/, level) : level;
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};
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var headlineNeedUpdate = function(myCurrHeadline, allowedHeadlingLevels, levelSearchDir) {
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if (!myCurrHeadline || !allowedHeadlingLevels) {
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@ -2266,7 +2299,7 @@ EasyMDE.prototype.render = function (el) {
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diff: Math.abs(newHeadingLevel - currHeadlingLevel),
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};
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};
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var checkNewHeadline = function(cm, obj) {
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var headlineCheckNew = function(cm, obj) {
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var myHeadline = cm.getRange({
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line: obj.from.line,
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ch: 0,
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@ -2283,7 +2316,7 @@ EasyMDE.prototype.render = function (el) {
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if (levels.to > levels.from) {
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// Current level is forbidden so we jump to the closest upper level allowed
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// We only need to reset the sharp numbers with the appropriate value before the modification is applied
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obj.text[0] = makeBiggerHeadline('', levels.from, levels.to);
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obj.text[0] = headlineMakeBigger('', levels.from, levels.to);
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}
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else {
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// The current level is forbidden and we jump to the closest lower level available
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@ -2306,7 +2339,7 @@ EasyMDE.prototype.render = function (el) {
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}
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return true;
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};
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var checkExistingHeadline = function(cm, obj) {
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var headlineCheckExisting = function(cm, obj) {
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var myChar = cm.getRange({
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line: obj.from.line,
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ch: obj.from.ch,
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@ -2314,7 +2347,6 @@ EasyMDE.prototype.render = function (el) {
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line: obj.to.line,
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ch: obj.to.ch + 1,
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});
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// console.log( '==' + myChar + '==' );
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if (!/\s|#/.test(myChar || '')) {
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// Don't bother to go further if no headlines were detected
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return false;
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@ -2331,7 +2363,7 @@ EasyMDE.prototype.render = function (el) {
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}
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else {
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myText = myText.replace(/#/, '##'); // Increment one sharp sign
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};
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}
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myLevels = headlineNeedUpdate(myText, cm.options.backdrop.headingLevels);
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if (!myLevels) {
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return false;
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@ -2378,50 +2410,99 @@ EasyMDE.prototype.render = function (el) {
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}
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}
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};
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var headingCheckRow = function(row, cm) {
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if (!row || !/^#/.test(row.trim())) {
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return row;
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}
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row = row.replace(/^(\s*)#/, '#');
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var myLevels = headlineNeedUpdate(row, cm.options.backdrop.headingLevels);
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if (!myLevels || !myLevels.from || !myLevels.to) {
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return row;
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}
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else if (myLevels.from < myLevels.to) {
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return headlineMakeBigger(row, myLevels.from, myLevels.to);
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}
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else if (myLevels.to < myLevels.from) {
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return headlineMakeSmaller(row, myLevels.from, myLevels.to);
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}
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return row;
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};
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this.codemirror.on('beforeChange', function (cm, obj) {
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console.log(obj);
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if (!obj || !obj.from || !obj.to || !obj.text) {
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// console.log(obj);
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if (!obj || !obj.from || !obj.to || !obj.text || !obj.text.length) {
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// Don't go further 'cause a required argument is missing...
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return false;
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}
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if ((obj.from.line === obj.to.line) ) {
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if ((obj.from.line === obj.to.line) && obj.text.length < 2) {
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if (obj.to.ch > 6) {
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// No need to trigger a check if we are on the same line at character 7 or upper
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// As we are sure the cursor is not inside a range containing a sharp sign
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// As we are sure the cursor was not inside a range containing a sharp sign
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return false;
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}
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if (obj.from.ch === 0 && obj.to.ch === 0 && /\s|\b/.test(obj.text[0] || '')) {
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// Prevent space at the beginning of the line
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if (obj.from.ch === 0 && obj.to.ch === 0 && /\s/.test(obj.text[0] || '')) {
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// (Force) Prevent space at the beginning of the line
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obj.cancel();
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return false;
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}
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}
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if (!obj.text.length) {
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// Just in case
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return false;
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}
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if (!obj.origin) {
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// Just in case
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// If a modification was triggered by a code and not an human
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// The origin can be "undefined", so just in case set one.
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obj.origin = '+none';
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}
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if (/input/.test(obj.origin)) { // Something was added
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if (obj.text.length === 1 && obj.text[0].length === 1) {
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// Only one character on one line is being updated
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if (obj.text[0] === ' ') {
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return checkNewHeadline(cm, obj);
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return headlineCheckNew(cm, obj);
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}
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else if (obj.text[0] === '#') {
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return checkExistingHeadline(cm, obj);
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}
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else {
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return false;
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return headlineCheckExisting(cm, obj);
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}
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}
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}
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else if (/delete/.test(obj.origin)) { // Something was removed
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if (obj.text.length === 1 && !obj.text[0].length) {
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// Only one character on one line has been removed
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return checkExistingHeadline(cm, obj);
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return headlineCheckExisting(cm, obj);
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}
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}
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if (obj.text.length < 2) {
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return false;
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}
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// Multilines modification like a paste
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var r;
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if (obj.from.ch === 0) {
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// Loop each row and check for headers
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for (r=0; r<obj.text.length; r++) {
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obj.text[r] = headingCheckRow(obj.text[r], cm);
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}
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}
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else if (obj.from.ch > 7) {
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// We are sure an existing header is not involved
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// So exclude the first row from the loop
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for (r=1; r<obj.text.length; r++) {
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obj.text[r] = headingCheckRow(obj.text[r], cm);
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}
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}
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else {
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// We need to check the first row in case an existing header is involved
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var startText, oldText, newText;
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for (r=0; r<obj.text.length; r++) {
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if (!r) { // First row
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startText = cm.getRange({line: obj.from.line, ch: 0}, {line: obj.from.line, ch: obj.from.ch});
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if (/#/.test(startText)) {
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oldText = startText + obj.text[r];
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newText = headingCheckRow(oldText, cm);
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if (oldText !== newText) { // A modification has been made
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obj.text[r] = newText;
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obj.from.ch = 0;
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}
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}
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}
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else { // 2nd and next rows
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obj.text[r] = headingCheckRow(obj.text[r], cm);
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}
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}
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}
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});
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