619 lines
27 KiB
JavaScript
619 lines
27 KiB
JavaScript
/**
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* @license
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* Copyright (C) 2013 KO GmbH <copyright@kogmbh.com>
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*
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* @licstart
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* The JavaScript code in this page is free software: you can redistribute it
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* and/or modify it under the terms of the GNU Affero General Public License
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* (GNU AGPL) as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version. The code is distributed
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU AGPL for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this code. If not, see <http://www.gnu.org/licenses/>.
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*
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* As additional permission under GNU AGPL version 3 section 7, you
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* may distribute non-source (e.g., minimized or compacted) forms of
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* that code without the copy of the GNU GPL normally required by
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* section 4, provided you include this license notice and a URL
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* through which recipients can access the Corresponding Source.
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*
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* As a special exception to the AGPL, any HTML file which merely makes function
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* calls to this code, and for that purpose includes it by reference shall be
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* deemed a separate work for copyright law purposes. In addition, the copyright
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* holders of this code give you permission to combine this code with free
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* software libraries that are released under the GNU LGPL. You may copy and
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* distribute such a system following the terms of the GNU AGPL for this code
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* and the LGPL for the libraries. If you modify this code, you may extend this
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* exception to your version of the code, but you are not obligated to do so.
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* If you do not wish to do so, delete this exception statement from your
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* version.
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*
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* This license applies to this entire compilation.
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* @licend
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* @source: http://www.webodf.org/
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* @source: https://github.com/kogmbh/WebODF/
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*/
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/*global runtime, define, document, odf, ops, window, gui, alert, saveAs, Blob */
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define("webodf/editor/Editor", [
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"webodf/editor/EditorSession",
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"webodf/editor/MemberListView",
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"dijit/layout/BorderContainer",
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"dijit/layout/ContentPane",
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"webodf/editor/Tools"],
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function (EditorSession,
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MemberListView,
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BorderContainer,
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ContentPane,
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Tools) {
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"use strict";
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runtime.loadClass('odf.OdfCanvas');
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/**
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* @constructor
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* @param {{unstableFeaturesEnabled:boolean,
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* loadCallback:function(),
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* saveCallback:function(),
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* closeCallback:function()}}
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* param {!ops.Server=} server
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* @param {!ServerFactory=} serverFactory
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*/
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function Editor(args, server, serverFactory) {
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var self = this,
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// Private
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session,
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editorSession,
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mainContainer,
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memberListView,
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tools,
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loadOdtFile = args.loadCallback,
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saveOdtFile = args.saveCallback,
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close = args.closeCallback,
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odfCanvas,
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eventNotifier = new core.EventNotifier([
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Editor.EVENT_ERROR,
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Editor.EVENT_BEFORESAVETOFILE,
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Editor.EVENT_SAVEDTOFILE,
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Editor.EVENT_HASLOCALUNSYNCEDOPERATIONSCHANGED,
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Editor.EVENT_HASSESSIONHOSTCONNECTIONCHANGED
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]),
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pendingMemberId,
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pendingEditorReadyCallback;
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/**
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* @param {!string} eventid
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* @param {*} args
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* @return {undefined}
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*/
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function fireEvent(eventid, args) {
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eventNotifier.emit(eventid, args);
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}
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function getFileBlob(cbSuccess, cbError) {
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var odfContainer = odfCanvas.odfContainer();
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if (odfContainer) {
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odfContainer.createByteArray(cbSuccess, cbError);
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} else {
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cbError("No odfContainer!");
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}
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}
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/**
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* prepare all gui elements and load the given document.
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* after loading is completed, the given callback is called.
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* the caller still has to call editorSession.startEditing
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* which will insert the the cursor.
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*
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* @param {!string} initialDocumentUrl
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* @param {!string} memberId
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* @param {!function()} editorReadyCallback
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* @return {undefined}
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*/
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function initDocLoading(initialDocumentUrl, memberId, editorReadyCallback) {
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runtime.assert(initialDocumentUrl, "document should be defined here.");
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runtime.assert(memberId !== undefined, "memberId should be defined here.");
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runtime.assert(!pendingEditorReadyCallback, "pendingEditorReadyCallback should not exist here.");
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runtime.assert(!editorSession, "editorSession should not exist here.");
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runtime.assert(!session, "session should not exist here.");
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pendingMemberId = memberId;
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pendingEditorReadyCallback = editorReadyCallback;
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odfCanvas.load(initialDocumentUrl);
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}
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/**
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* open the document,
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* call editorReadyCallback once everything is done.
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*
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* @param {!string} docUrl
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* @param {!string} memberId
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* @param {!function()} editorReadyCallback
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* @return {undefined}
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*/
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this.openDocument = function (docUrl, memberId, editorReadyCallback) {
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initDocLoading(docUrl, memberId, function () {
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runtime.loadClass("ops.OpAddMember");
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var op = new ops.OpAddMember();
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op.init({
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memberid: memberId,
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setProperties: {
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fullName: runtime.tr("Unknown Author"),
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color: "black",
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imageUrl: "avatar-joe.png"
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}
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});
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session.enqueue([op]);
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editorReadyCallback();
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});
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};
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/**
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* Closes a single-user document, and does cleanup.
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* @param {!function(!Object=)} callback, passing an error object in case of error
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* @return undefined;
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*/
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this.closeDocument = function (callback) {
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runtime.assert(session, "session should exist here.");
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runtime.loadClass("ops.OpRemoveMember");
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var op = new ops.OpRemoveMember();
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op.init({
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memberid: editorSession.sessionController.getInputMemberId()
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});
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session.enqueue([op]);
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session.close(function (err) {
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if (err) {
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callback(err);
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} else {
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editorSession.destroy(function (err) {
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if (err) {
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callback(err);
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} else {
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editorSession = undefined;
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session.destroy(function (err) {
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if (err) {
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callback(err);
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} else {
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session = undefined;
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callback();
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}
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});
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}
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});
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}
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});
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};
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/**
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* @param {!string} filename
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* @param {?function()} callback
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* @return {undefined}
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*/
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this.saveDocument = function (filename, callback) {
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function onsuccess(data) {
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var mimebase = "application/vnd.oasis.opendocument.",
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mimetype = mimebase + "text",
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blob;
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filename = filename || "doc.odt";
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if (filename.substr(-4) === ".odp") {
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mimetype = mimebase + "presentation";
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} else if (filename.substr(-4) === ".ods") {
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mimetype = mimebase + "spreadsheet";
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}
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blob = new Blob([data.buffer], {type: mimetype});
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saveAs(blob, filename);
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//TODO: add callback as event handler to saveAs
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fireEvent(Editor.EVENT_SAVEDTOFILE, null);
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}
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function onerror(error) {
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// TODO: use callback for that
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alert(error);
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}
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fireEvent(Editor.EVENT_BEFORESAVETOFILE, null);
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getFileBlob(onsuccess, onerror);
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};
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/**
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* @param {!Object} error
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* @return {undefined}
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*/
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function handleOperationRouterErrors(error) {
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// TODO: translate error into Editor ids or at least document the possible values
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fireEvent(Editor.EVENT_ERROR, error);
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}
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/**
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* open the initial document of an editing-session,
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* request a replay of previous operations, call
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* editorReadyCallback once everything is done.
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*
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* @param {!string} sessionId
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* @param {!string} memberId
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* @param {!function()} editorReadyCallback
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* @return {undefined}
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*/
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this.openSession = function (sessionId, memberId, editorReadyCallback) {
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initDocLoading(server.getGenesisUrl(sessionId), memberId, function () {
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// overwrite router
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// TODO: serverFactory should be a backendFactory,
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// and there should be a backendFactory for local editing
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var opRouter = serverFactory.createOperationRouter(sessionId, memberId, server, odfCanvas.odfContainer(), handleOperationRouterErrors);
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session.setOperationRouter(opRouter);
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// forward events
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// TODO: relying here on that opRouter uses the same id strings ATM, those should be defined at OperationRouter interface
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opRouter.subscribe(Editor.EVENT_HASLOCALUNSYNCEDOPERATIONSCHANGED, function (hasUnsyncedOps) {
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fireEvent(Editor.EVENT_HASLOCALUNSYNCEDOPERATIONSCHANGED, hasUnsyncedOps);
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});
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opRouter.subscribe(Editor.EVENT_HASSESSIONHOSTCONNECTIONCHANGED, function (hasSessionHostConnection) {
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fireEvent(Editor.EVENT_HASSESSIONHOSTCONNECTIONCHANGED, hasSessionHostConnection);
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});
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opRouter.subscribe(Editor.EVENT_BEFORESAVETOFILE, function () {
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fireEvent(Editor.EVENT_BEFORESAVETOFILE, null);
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});
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opRouter.subscribe(Editor.EVENT_SAVEDTOFILE, function () {
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fireEvent(Editor.EVENT_SAVEDTOFILE, null);
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});
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// now get existing ops and after that let the user edit
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opRouter.requestReplay(function done() {
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editorReadyCallback();
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});
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});
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};
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/**
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* Closes the current editing running editing (polling-timer),
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* cleanup.
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* @param {!function(!Object=)} callback, passing an error object in case of error
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* @return {undefined}
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*/
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this.closeSession = function (callback) {
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runtime.assert(session, "session should exist here.");
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// TODO: there is a better pattern for this instead of unrolling
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session.close(function(err) {
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if (err) {
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callback(err);
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} else {
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// now also destroy session, will not be reused for new document
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memberListView.setEditorSession(undefined);
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editorSession.destroy(function(err) {
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if (err) {
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callback(err);
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} else {
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editorSession = undefined;
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session.destroy(function(err) {
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if (err) {
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callback(err);
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} else {
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session = undefined;
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callback();
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}
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});
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}
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});
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}
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});
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};
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/**
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* Adds a cursor and enables the tools and allows modifications.
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* Should be called inside/after editorReadyCallback.
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* TODO: turn this and endEditing() into readonly switch
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* @return {undefined}
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*/
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this.startEditing = function () {
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runtime.assert(editorSession, "editorSession should exist here.");
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tools.setEditorSession(editorSession);
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editorSession.sessionController.insertLocalCursor();
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editorSession.sessionController.startEditing();
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};
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/**
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* Removes the cursor and disables the tools and allows modifications.
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* Should be called before closeDocument, if startEditing was called before
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* @return {undefined}
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*/
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this.endEditing = function () {
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runtime.assert(editorSession, "editorSession should exist here.");
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tools.setEditorSession(undefined);
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editorSession.sessionController.endEditing();
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editorSession.sessionController.removeLocalCursor();
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};
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/**
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* Allows to register listeners for certain events. Currently
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* available events are, with the type of the argument passed to the callback:
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* Editor.EVENT_BEFORESAVETOFILE - no argument
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* Editor.EVENT_SAVEDTOFILE - no argument
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* Editor.EVENT_HASLOCALUNSYNCEDOPERATIONSCHANGED - boolean, reflecting new hasLocalUnsyncedOperations state
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* Editor.EVENT_HASSESSIONHOSTCONNECTIONCHANGED - boolean, reflecting new hasSessionhostConnection state
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* Editor.EVENT_ERROR - string, one of these errorcodes:
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* "notMemberOfSession"
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* "opExecutionFailure"
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* "sessionDoesNotExist"
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* "unknownOpReceived"
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* "unknownServerReply"
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* "unresolvableConflictingOps"
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*
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* @param {!string} eventid
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* @param {!Function} listener
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* @return {undefined}
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*/
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this.addEventListener = function (eventid, listener) {
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eventNotifier.subscribe(eventid, listener);
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};
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/**
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* @param {!string} eventid
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* @param {!Function} listener
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* @return {undefined}
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*/
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this.removeEventListener = function (eventid, listener) {
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eventNotifier.unsubscribe(eventid, listener);
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};
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/**
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* Applies a CSS transformation to the toolbar
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* to ensure that if there is a body-scroll,
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* the toolbar remains visible at the top of
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* the screen.
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* The bodyscroll quirk has been observed on
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* iOS, generally when the keyboard appears.
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* But this workaround should function on
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* other platforms that exhibit this behaviour
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* as well.
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* @return {undefined}
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*/
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function translateToolbar() {
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var bar = document.getElementById('toolbar'),
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y = document.body.scrollTop;
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bar.style.WebkitTransformOrigin = "center top";
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bar.style.WebkitTransform = 'translateY(' + y + 'px)';
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}
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/**
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* FIXME: At the moment both the toolbar and the canvas
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* container are absolutely positioned. Changing them to
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* relative positioning to ensure that they do not overlap
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* causes scrollbars *within* the container to disappear.
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* Not sure why this happens, and a proper CSS fix has not
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* been found yet, so for now we need to reposition
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* the container using Js.
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* @return {undefined}
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*/
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function repositionContainer() {
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document.getElementById('container').style.top = document.getElementById('toolbar').getBoundingClientRect().height + 'px';
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}
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/**
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* @param {!function(!Object=)} callback, passing an error object in case of error
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* @return {undefined}
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*/
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this.destroy = function (callback) {
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var destroyMemberListView = memberListView ? memberListView.destroy : function(cb) { cb(); };
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window.removeEventListener('scroll', translateToolbar);
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window.removeEventListener('focusout', translateToolbar);
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window.removeEventListener('touchmove', translateToolbar);
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window.removeEventListener('resize', repositionContainer);
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// TODO: decide if some forced close should be done here instead of enforcing proper API usage
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runtime.assert(!session, "session should not exist here.");
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// TODO: investigate what else needs to be done
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mainContainer.destroyRecursive(true);
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destroyMemberListView(function(err) {
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if (err) {
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callback(err);
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} else {
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tools.destroy(function(err) {
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if (err) {
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callback(err);
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} else {
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odfCanvas.destroy(function(err) {
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if (err) {
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callback(err);
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} else {
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callback();
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}
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});
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}
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});
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}
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});
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};
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function setFocusToOdfCanvas() {
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editorSession.sessionController.getEventManager().focus();
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}
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/**
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* Returns true if either all features are wanted and this one is not explicitely disabled
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* or if not all features are wanted by default and it is explicitely enabled
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* @param {?boolean|undefined} isFeatureEnabled explicit flag which enables a feature
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* @param {!boolean=} isUnstable set to true if the feature is not stable (in collab mode)
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* @return {!boolean}
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*/
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function isEnabled(isFeatureEnabled, isUnstable) {
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if (isUnstable && ! args.unstableFeaturesEnabled) {
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return false;
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}
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return args.allFeaturesEnabled ? (isFeatureEnabled !== false) : isFeatureEnabled;
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}
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// init
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function init() {
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var editorPane, memberListPane,
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inviteButton,
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canvasElement = document.getElementById("canvas"),
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container = document.getElementById('container'),
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memberListElement = document.getElementById('memberList'),
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collabEditing = Boolean(server),
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directTextStylingEnabled = isEnabled(args.directTextStylingEnabled),
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directParagraphStylingEnabled = isEnabled(args.directParagraphStylingEnabled),
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paragraphStyleSelectingEnabled = isEnabled(args.paragraphStyleSelectingEnabled),
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paragraphStyleEditingEnabled = isEnabled(args.paragraphStyleEditingEnabled),
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imageEditingEnabled = isEnabled(args.imageEditingEnabled, true),
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hyperlinkEditingEnabled = isEnabled(args.hyperlinkEditingEnabled, true),
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reviewModeEnabled = isEnabled(args.reviewModeEnabled, true),
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annotationsEnabled = reviewModeEnabled || isEnabled(args.annotationsEnabled),
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undoRedoEnabled = false, // no proper mechanism yet for collab
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zoomingEnabled = isEnabled(args.zoomingEnabled),
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closeCallback;
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// Extend runtime with a convenient translation function
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runtime.translateContent = function (node) {
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var i,
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element,
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tag,
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placeholder,
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translatable = node.querySelectorAll("*[text-i18n]");
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for (i = 0; i < translatable.length; i += 1) {
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element = translatable[i];
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tag = element.localName;
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placeholder = element.getAttribute('text-i18n');
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if (tag === "label"
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|| tag === "span"
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|| /h\d/i.test(tag)) {
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element.textContent = runtime.tr(placeholder);
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}
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}
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};
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if (collabEditing) {
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runtime.assert(memberListElement, 'missing "memberList" div in HTML');
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}
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runtime.assert(canvasElement, 'missing "canvas" div in HTML');
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// App Widgets
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mainContainer = new BorderContainer({}, 'mainContainer');
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editorPane = new ContentPane({
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region: 'center'
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}, 'editor');
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mainContainer.addChild(editorPane);
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if (collabEditing) {
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memberListPane = new ContentPane({
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region: 'right',
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title: runtime.tr("Members")
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}, 'members');
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mainContainer.addChild(memberListPane);
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memberListView = new MemberListView(memberListElement);
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}
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mainContainer.startup();
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if (window.inviteButtonProxy) {
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inviteButton = document.getElementById('inviteButton');
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runtime.assert(inviteButton, 'missing "inviteButton" div in HTML');
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inviteButton.innerText = runtime.tr("Invite Members");
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inviteButton.style.display = "block";
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inviteButton.onclick = window.inviteButtonProxy.clicked;
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}
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tools = new Tools('toolbar', {
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|
onToolDone: setFocusToOdfCanvas,
|
|
saveOdtFile: saveOdtFile,
|
|
close: close,
|
|
directTextStylingEnabled: directTextStylingEnabled,
|
|
directParagraphStylingEnabled: directParagraphStylingEnabled,
|
|
paragraphStyleSelectingEnabled: paragraphStyleSelectingEnabled,
|
|
paragraphStyleEditingEnabled: paragraphStyleEditingEnabled,
|
|
imageInsertingEnabled: imageEditingEnabled,
|
|
hyperlinkEditingEnabled: hyperlinkEditingEnabled,
|
|
annotationsEnabled: annotationsEnabled,
|
|
undoRedoEnabled: undoRedoEnabled,
|
|
zoomingEnabled: zoomingEnabled
|
|
});
|
|
|
|
odfCanvas = new odf.OdfCanvas(canvasElement);
|
|
odfCanvas.enableAnnotations(annotationsEnabled, true);
|
|
|
|
odfCanvas.addListener("statereadychange", function () {
|
|
var viewOptions = {
|
|
editInfoMarkersInitiallyVisible: collabEditing,
|
|
caretAvatarsInitiallyVisible: false,
|
|
caretBlinksOnRangeSelect: true
|
|
};
|
|
|
|
// create session around loaded document
|
|
var viewOptions = {
|
|
editInfoMarkersInitiallyVisible: true,
|
|
caretAvatarsInitiallyVisible: false,
|
|
caretBlinksOnRangeSelect: true
|
|
};
|
|
session = new ops.Session(odfCanvas);
|
|
editorSession = new EditorSession(session, pendingMemberId, {
|
|
viewOptions: viewOptions,
|
|
directTextStylingEnabled: directTextStylingEnabled,
|
|
directParagraphStylingEnabled: directParagraphStylingEnabled,
|
|
paragraphStyleSelectingEnabled: paragraphStyleSelectingEnabled,
|
|
paragraphStyleEditingEnabled: paragraphStyleEditingEnabled,
|
|
imageEditingEnabled: imageEditingEnabled,
|
|
hyperlinkEditingEnabled: hyperlinkEditingEnabled,
|
|
annotationsEnabled: annotationsEnabled,
|
|
zoomingEnabled: zoomingEnabled,
|
|
reviewModeEnabled: reviewModeEnabled
|
|
});
|
|
if (undoRedoEnabled) {
|
|
editorSession.sessionController.setUndoManager(new gui.TrivialUndoManager());
|
|
}
|
|
|
|
if (memberListView) {
|
|
memberListView.setEditorSession(editorSession);
|
|
}
|
|
|
|
// and report back to caller
|
|
pendingEditorReadyCallback();
|
|
// reset
|
|
pendingEditorReadyCallback = null;
|
|
pendingMemberId = null;
|
|
});
|
|
|
|
repositionContainer();
|
|
|
|
window.addEventListener('scroll', translateToolbar);
|
|
window.addEventListener('focusout', translateToolbar);
|
|
window.addEventListener('touchmove', translateToolbar);
|
|
window.addEventListener('resize', repositionContainer);
|
|
}
|
|
|
|
init();
|
|
}
|
|
|
|
/**@const @type {!string}*/
|
|
Editor.EVENT_ERROR = "error";
|
|
/**@const @type {!string}*/
|
|
Editor.EVENT_BEFORESAVETOFILE = "beforeSaveToFile";
|
|
/**@const @type {!string}*/
|
|
Editor.EVENT_SAVEDTOFILE = "savedToFile";
|
|
/**@const @type {!string}*/
|
|
Editor.EVENT_HASLOCALUNSYNCEDOPERATIONSCHANGED = "hasLocalUnsyncedOperationsChanged";
|
|
/**@const @type {!string}*/
|
|
Editor.EVENT_HASSESSIONHOSTCONNECTIONCHANGED = "hasSessionHostConnectionChanged";
|
|
|
|
return Editor;
|
|
});
|
|
|
|
// vim:expandtab
|