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667 lines
26 KiB
JavaScript
667 lines
26 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 define, runtime, core, gui, ops, document */
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define("webodf/editor/EditorSession", [
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"dojo/text!" + OC.filePath('documents', 'css', 'fonts.css')
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], function (fontsCSS) { // fontsCSS is retrieved as a string, using dojo's text retrieval AMD plugin
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"use strict";
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runtime.loadClass("core.DomUtils");
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runtime.loadClass("odf.OdfUtils");
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runtime.loadClass("ops.OdtDocument");
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runtime.loadClass("ops.StepsTranslator");
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runtime.loadClass("ops.Session");
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runtime.loadClass("odf.Namespaces");
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runtime.loadClass("odf.OdfCanvas");
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runtime.loadClass("odf.OdfUtils");
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runtime.loadClass("gui.CaretManager");
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runtime.loadClass("gui.Caret");
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runtime.loadClass("gui.SessionController");
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runtime.loadClass("gui.SessionView");
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runtime.loadClass("gui.TrivialUndoManager");
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runtime.loadClass("gui.SvgSelectionView");
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runtime.loadClass("gui.SelectionViewManager");
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runtime.loadClass("core.EventNotifier");
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runtime.loadClass("gui.ShadowCursor");
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/**
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* Instantiate a new editor session attached to an existing operation session
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* @param {!ops.Session} session
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* @param {!string} localMemberId
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* @param {{viewOptions:gui.SessionViewOptions,directParagraphStylingEnabled:boolean}} config
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* @constructor
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*/
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var EditorSession = function EditorSession(session, localMemberId, config) {
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var self = this,
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currentParagraphNode = null,
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currentCommonStyleName = null,
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currentStyleName = null,
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caretManager,
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selectionViewManager,
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odtDocument = session.getOdtDocument(),
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textns = odf.Namespaces.textns,
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fontStyles = document.createElement('style'),
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formatting = odtDocument.getFormatting(),
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domUtils = new core.DomUtils(),
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odfUtils = new odf.OdfUtils(),
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eventNotifier = new core.EventNotifier([
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EditorSession.signalMemberAdded,
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EditorSession.signalMemberUpdated,
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EditorSession.signalMemberRemoved,
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EditorSession.signalCursorAdded,
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EditorSession.signalCursorMoved,
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EditorSession.signalCursorRemoved,
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EditorSession.signalParagraphChanged,
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EditorSession.signalCommonStyleCreated,
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EditorSession.signalCommonStyleDeleted,
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EditorSession.signalParagraphStyleModified,
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EditorSession.signalUndoStackChanged]),
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shadowCursor = new gui.ShadowCursor(odtDocument);
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/**
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* @return {Array.<!string>}
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*/
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function getAvailableFonts() {
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var availableFonts, regex, matches;
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availableFonts = {};
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regex = /font-family *: *(?:\'([^']*)\'|\"([^"]*)\")/gm;
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matches = regex.exec(fontsCSS);
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while (matches) {
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availableFonts[matches[1] || matches[2]] = 1;
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matches = regex.exec(fontsCSS);
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}
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availableFonts = Object.keys(availableFonts);
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return availableFonts;
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}
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function checkParagraphStyleName() {
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var newStyleName,
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newCommonStyleName;
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newStyleName = currentParagraphNode.getAttributeNS(textns, 'style-name');
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if (newStyleName !== currentStyleName) {
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currentStyleName = newStyleName;
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// check if common style is still the same
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newCommonStyleName = formatting.getFirstCommonParentStyleNameOrSelf(newStyleName);
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if (!newCommonStyleName) {
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// Default style, empty-string name
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currentCommonStyleName = newStyleName = currentStyleName = "";
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self.emit(EditorSession.signalParagraphChanged, {
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type: 'style',
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node: currentParagraphNode,
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styleName: currentCommonStyleName
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});
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return;
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}
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// a common style
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if (newCommonStyleName !== currentCommonStyleName) {
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currentCommonStyleName = newCommonStyleName;
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self.emit(EditorSession.signalParagraphChanged, {
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type: 'style',
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node: currentParagraphNode,
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styleName: currentCommonStyleName
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});
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}
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}
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}
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/**
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* Creates a NCName from the passed string
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* @param {!string} name
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* @return {!string}
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*/
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function createNCName(name) {
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var letter,
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result = "",
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i;
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// encode
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for (i = 0; i < name.length; i++) {
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letter = name[i];
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// simple approach, can be improved to not skip other allowed chars
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if (letter.match(/[a-zA-Z0-9.-_]/) !== null) {
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result += letter;
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} else {
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result += "_" + letter.charCodeAt(0).toString(16) + "_";
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}
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}
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// ensure leading char is from proper range
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if (result.match(/^[a-zA-Z_]/) === null) {
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result = "_" + result;
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}
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return result;
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}
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function uniqueParagraphStyleNCName(name) {
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var result,
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i = 0,
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ncMemberId = createNCName(localMemberId),
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ncName = createNCName(name);
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// create default paragraph style
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// localMemberId is used to avoid id conflicts with ids created by other members
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result = ncName + "_" + ncMemberId;
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// then loop until result is really unique
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while (formatting.hasParagraphStyle(result)) {
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result = ncName + "_" + i + "_" + ncMemberId;
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i++;
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}
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return result;
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}
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function trackCursor(cursor) {
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var node;
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node = odtDocument.getParagraphElement(cursor.getNode());
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if (!node) {
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return;
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}
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currentParagraphNode = node;
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checkParagraphStyleName();
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}
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function trackCurrentParagraph(info) {
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var cursor = odtDocument.getCursor(localMemberId),
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range = cursor && cursor.getSelectedRange(),
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paragraphRange = odtDocument.getDOMDocument().createRange();
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paragraphRange.selectNode(info.paragraphElement);
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if ((range && domUtils.rangesIntersect(range, paragraphRange)) || info.paragraphElement === currentParagraphNode) {
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self.emit(EditorSession.signalParagraphChanged, info);
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checkParagraphStyleName();
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}
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paragraphRange.detach();
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}
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function onMemberAdded(member) {
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self.emit(EditorSession.signalMemberAdded, member.getMemberId());
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}
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function onMemberUpdated(member) {
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self.emit(EditorSession.signalMemberUpdated, member.getMemberId());
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}
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function onMemberRemoved(memberId) {
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self.emit(EditorSession.signalMemberRemoved, memberId);
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}
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function onCursorAdded(cursor) {
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self.emit(EditorSession.signalCursorAdded, cursor.getMemberId());
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trackCursor(cursor);
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}
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function onCursorRemoved(memberId) {
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self.emit(EditorSession.signalCursorRemoved, memberId);
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}
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function onCursorMoved(cursor) {
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// Emit 'cursorMoved' only when *I* am moving the cursor, not the other users
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if (cursor.getMemberId() === localMemberId) {
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self.emit(EditorSession.signalCursorMoved, cursor);
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trackCursor(cursor);
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}
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}
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function onStyleCreated(newStyleName) {
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self.emit(EditorSession.signalCommonStyleCreated, newStyleName);
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}
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function onStyleDeleted(styleName) {
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self.emit(EditorSession.signalCommonStyleDeleted, styleName);
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}
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function onParagraphStyleModified(styleName) {
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self.emit(EditorSession.signalParagraphStyleModified, styleName);
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}
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/**
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* Call all subscribers for the given event with the specified argument
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* @param {!string} eventid
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* @param {Object} args
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*/
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this.emit = function (eventid, args) {
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eventNotifier.emit(eventid, args);
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};
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/**
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* Subscribe to a given event with a callback
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* @param {!string} eventid
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* @param {!Function} cb
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*/
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this.subscribe = function (eventid, cb) {
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eventNotifier.subscribe(eventid, cb);
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};
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/**
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* @param {!string} eventid
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* @param {!Function} cb
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* @return {undefined}
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*/
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this.unsubscribe = function (eventid, cb) {
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eventNotifier.unsubscribe(eventid, cb);
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};
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this.getCursorPosition = function () {
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return odtDocument.getCursorPosition(localMemberId);
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};
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this.getCursorSelection = function () {
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return odtDocument.getCursorSelection(localMemberId);
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};
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this.getOdfCanvas = function () {
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return odtDocument.getOdfCanvas();
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};
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this.getCurrentParagraph = function () {
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return currentParagraphNode;
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};
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this.getAvailableParagraphStyles = function () {
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return formatting.getAvailableParagraphStyles();
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};
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this.getCurrentParagraphStyle = function () {
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return currentCommonStyleName;
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};
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/**
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* Round the step up to the next step
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* @param {!number} step
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* @return {!boolean}
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*/
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function roundUp(step) {
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return step === ops.StepsTranslator.NEXT_STEP;
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}
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/**
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* Applies the paragraph style with the given
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* style name to all the paragraphs within
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* the cursor selection.
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* @param {!string} styleName
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* @return {undefined}
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*/
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this.setCurrentParagraphStyle = function (styleName) {
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var range = odtDocument.getCursor(localMemberId).getSelectedRange(),
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paragraphs = odfUtils.getParagraphElements(range),
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opQueue = [];
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paragraphs.forEach(function (paragraph) {
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var paragraphStartPoint = odtDocument.convertDomPointToCursorStep(paragraph, 0, roundUp),
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paragraphStyleName = paragraph.getAttributeNS(odf.Namespaces.textns, "style-name"),
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opSetParagraphStyle;
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if (paragraphStyleName !== styleName) {
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opSetParagraphStyle = new ops.OpSetParagraphStyle();
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opSetParagraphStyle.init({
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memberid: localMemberId,
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styleName: styleName,
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position: paragraphStartPoint
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});
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opQueue.push(opSetParagraphStyle);
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}
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});
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if (opQueue.length > 0) {
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session.enqueue(opQueue);
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}
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};
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this.insertTable = function (initialRows, initialColumns, tableStyleName, tableColumnStyleName, tableCellStyleMatrix) {
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var op = new ops.OpInsertTable();
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op.init({
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memberid: localMemberId,
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position: self.getCursorPosition(),
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initialRows: initialRows,
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initialColumns: initialColumns,
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tableStyleName: tableStyleName,
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tableColumnStyleName: tableColumnStyleName,
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tableCellStyleMatrix: tableCellStyleMatrix
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});
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session.enqueue([op]);
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};
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/**
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* Takes a style name and returns the corresponding paragraph style
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* element. If the style name is an empty string, the default style
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* is returned.
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* @param {!string} styleName
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* @return {Element}
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*/
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this.getParagraphStyleElement = function (styleName) {
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return (styleName === "")
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? formatting.getDefaultStyleElement('paragraph')
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: odtDocument.getParagraphStyleElement(styleName);
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};
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/**
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* Returns if the style is used anywhere in the document
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* @param {!Element} styleElement
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* @return {boolean}
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*/
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this.isStyleUsed = function (styleElement) {
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return formatting.isStyleUsed(styleElement);
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};
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function getDefaultParagraphStyleAttributes() {
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var styleNode = formatting.getDefaultStyleElement('paragraph');
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if (styleNode) {
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return formatting.getInheritedStyleAttributes(styleNode);
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}
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return null;
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}
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/**
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* Returns the attributes of a given paragraph style name
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* (with inheritance). If the name is an empty string,
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* the attributes of the default style are returned.
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* @param {!string} styleName
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* @return {Object}
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*/
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this.getParagraphStyleAttributes = function (styleName) {
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return (styleName === "")
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? getDefaultParagraphStyleAttributes()
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: odtDocument.getParagraphStyleAttributes(styleName);
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};
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/**
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* Creates and enqueues a paragraph-style cloning operation.
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* Returns the created id for the new style.
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* @param {!string} styleName id of the style to update
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* @param {!{paragraphProperties,textProperties}} setProperties properties which are set
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* @param {!{paragraphPropertyNames,textPropertyNames}=} removedProperties properties which are removed
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* @return {undefined}
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*/
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this.updateParagraphStyle = function (styleName, setProperties, removedProperties) {
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var op;
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op = new ops.OpUpdateParagraphStyle();
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op.init({
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memberid: localMemberId,
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styleName: styleName,
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setProperties: setProperties,
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removedProperties: (!removedProperties) ? {} : removedProperties
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});
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session.enqueue([op]);
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};
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/**
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* Creates and enqueues a paragraph-style cloning operation.
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* Returns the created id for the new style.
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* @param {!string} styleName id of the style to clone
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* @param {!string} newStyleDisplayName display name of the new style
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* @return {!string}
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*/
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this.cloneParagraphStyle = function (styleName, newStyleDisplayName) {
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var newStyleName = uniqueParagraphStyleNCName(newStyleDisplayName),
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styleNode = self.getParagraphStyleElement(styleName),
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formatting = odtDocument.getFormatting(),
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op, setProperties, attributes, i;
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setProperties = formatting.getStyleAttributes(styleNode);
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// copy any attributes directly on the style
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attributes = styleNode.attributes;
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for (i = 0; i < attributes.length; i += 1) {
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// skip...
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// * style:display-name -> not copied, set to new string below
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// * style:name -> not copied, set from op by styleName property
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// * style:family -> "paragraph" always, set by op
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if (!/^(style:display-name|style:name|style:family)/.test(attributes[i].name)) {
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setProperties[attributes[i].name] = attributes[i].value;
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}
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}
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setProperties['style:display-name'] = newStyleDisplayName;
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op = new ops.OpAddStyle();
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op.init({
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memberid: localMemberId,
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styleName: newStyleName,
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styleFamily: 'paragraph',
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setProperties: setProperties
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});
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session.enqueue([op]);
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return newStyleName;
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};
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this.deleteStyle = function (styleName) {
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var op;
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op = new ops.OpRemoveStyle();
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op.init({
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memberid: localMemberId,
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styleName: styleName,
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styleFamily: 'paragraph'
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});
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session.enqueue([op]);
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};
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/**
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* Returns an array of the declared fonts in the ODF document,
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* with 'duplicates' like Arial1, Arial2, etc removed. The alphabetically
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* first font name for any given family is kept.
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* The elements of the array are objects containing the font's name and
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* the family.
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* @return {Array.<!Object>}
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*/
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this.getDeclaredFonts = function () {
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var fontMap = formatting.getFontMap(),
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usedFamilies = [],
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array = [],
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sortedNames,
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key,
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value,
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i;
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// Sort all the keys in the font map alphabetically
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sortedNames = Object.keys(fontMap);
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sortedNames.sort();
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for (i = 0; i < sortedNames.length; i += 1) {
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key = sortedNames[i];
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value = fontMap[key];
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// Use the font declaration only if the family is not already used.
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// Therefore we are able to discard the alphabetic successors of the first
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// font name.
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if (usedFamilies.indexOf(value) === -1) {
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array.push({
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name: key,
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family: value
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});
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if (value) {
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usedFamilies.push(value);
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}
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}
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}
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return array;
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};
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this.getSelectedHyperlinks = function () {
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var cursor = odtDocument.getCursor(localMemberId);
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// no own cursor yet/currently added?
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if (!cursor) {
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return [];
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}
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return odfUtils.getHyperlinkElements(cursor.getSelectedRange());
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};
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this.getSelectedRange = function () {
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var cursor = odtDocument.getCursor(localMemberId);
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return cursor && cursor.getSelectedRange();
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};
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function undoStackModified(e) {
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self.emit(EditorSession.signalUndoStackChanged, e);
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}
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|
|
this.undo = function () {
|
|
self.sessionController.undo();
|
|
};
|
|
|
|
this.redo = function () {
|
|
self.sessionController.redo();
|
|
};
|
|
|
|
/**
|
|
*
|
|
* @param {!string} mimetype
|
|
* @param {!string} content base64 encoded string
|
|
* @param {!number} width
|
|
* @param {!number} height
|
|
*/
|
|
this.insertImage = function (mimetype, content, width, height) {
|
|
self.sessionController.getTextController().removeCurrentSelection();
|
|
self.sessionController.getImageController().insertImage(mimetype, content, width, height);
|
|
};
|
|
|
|
/**
|
|
* @param {!string} memberId
|
|
* @return {?ops.Member}
|
|
*/
|
|
this.getMember = function (memberId) {
|
|
return odtDocument.getMember(memberId);
|
|
};
|
|
|
|
/**
|
|
* @param {!function(!Object=)} callback, passing an error object in case of error
|
|
* @return {undefined}
|
|
*/
|
|
this.destroy = function(callback) {
|
|
var head = document.getElementsByTagName('head')[0];
|
|
|
|
head.removeChild(fontStyles);
|
|
|
|
odtDocument.unsubscribe(ops.Document.signalMemberAdded, onMemberAdded);
|
|
odtDocument.unsubscribe(ops.Document.signalMemberUpdated, onMemberUpdated);
|
|
odtDocument.unsubscribe(ops.Document.signalMemberRemoved, onMemberRemoved);
|
|
odtDocument.unsubscribe(ops.Document.signalCursorAdded, onCursorAdded);
|
|
odtDocument.unsubscribe(ops.Document.signalCursorRemoved, onCursorRemoved);
|
|
odtDocument.unsubscribe(ops.Document.signalCursorMoved, onCursorMoved);
|
|
odtDocument.unsubscribe(ops.OdtDocument.signalCommonStyleCreated, onStyleCreated);
|
|
odtDocument.unsubscribe(ops.OdtDocument.signalCommonStyleDeleted, onStyleDeleted);
|
|
odtDocument.unsubscribe(ops.OdtDocument.signalParagraphStyleModified, onParagraphStyleModified);
|
|
odtDocument.unsubscribe(ops.OdtDocument.signalParagraphChanged, trackCurrentParagraph);
|
|
odtDocument.unsubscribe(ops.OdtDocument.signalUndoStackChanged, undoStackModified);
|
|
|
|
self.sessionView.destroy(function(err) {
|
|
if (err) {
|
|
callback(err);
|
|
} else {
|
|
delete self.sessionView;
|
|
caretManager.destroy(function(err) {
|
|
if (err) {
|
|
callback(err);
|
|
} else {
|
|
selectionViewManager.destroy(function(err) {
|
|
if (err) {
|
|
callback(err);
|
|
} else {
|
|
self.sessionController.destroy(function(err) {
|
|
if (err) {
|
|
callback(err);
|
|
} else {
|
|
delete self.sessionController;
|
|
callback();
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
});
|
|
};
|
|
|
|
function init() {
|
|
var head = document.getElementsByTagName('head')[0];
|
|
|
|
// TODO: fonts.css should be rather done by odfCanvas, or?
|
|
fontStyles.type = 'text/css';
|
|
fontStyles.media = 'screen, print, handheld, projection';
|
|
fontStyles.appendChild(document.createTextNode(fontsCSS));
|
|
head.appendChild(fontStyles);
|
|
|
|
self.sessionController = new gui.SessionController(session, localMemberId, shadowCursor, {
|
|
directParagraphStylingEnabled: config.directParagraphStylingEnabled
|
|
});
|
|
caretManager = new gui.CaretManager(self.sessionController);
|
|
selectionViewManager = new gui.SelectionViewManager(gui.SvgSelectionView);
|
|
self.sessionView = new gui.SessionView(config.viewOptions, localMemberId, session, caretManager, selectionViewManager);
|
|
self.availableFonts = getAvailableFonts();
|
|
selectionViewManager.registerCursor(shadowCursor, true);
|
|
// Custom signals, that make sense in the Editor context. We do not want to expose webodf's ops signals to random bits of the editor UI.
|
|
odtDocument.subscribe(ops.Document.signalMemberAdded, onMemberAdded);
|
|
odtDocument.subscribe(ops.Document.signalMemberUpdated, onMemberUpdated);
|
|
odtDocument.subscribe(ops.Document.signalMemberRemoved, onMemberRemoved);
|
|
odtDocument.subscribe(ops.Document.signalCursorAdded, onCursorAdded);
|
|
odtDocument.subscribe(ops.Document.signalCursorRemoved, onCursorRemoved);
|
|
odtDocument.subscribe(ops.Document.signalCursorMoved, onCursorMoved);
|
|
odtDocument.subscribe(ops.OdtDocument.signalCommonStyleCreated, onStyleCreated);
|
|
odtDocument.subscribe(ops.OdtDocument.signalCommonStyleDeleted, onStyleDeleted);
|
|
odtDocument.subscribe(ops.OdtDocument.signalParagraphStyleModified, onParagraphStyleModified);
|
|
odtDocument.subscribe(ops.OdtDocument.signalParagraphChanged, trackCurrentParagraph);
|
|
odtDocument.subscribe(ops.OdtDocument.signalUndoStackChanged, undoStackModified);
|
|
}
|
|
|
|
init();
|
|
};
|
|
|
|
/**@const*/EditorSession.signalMemberAdded = "memberAdded";
|
|
/**@const*/EditorSession.signalMemberUpdated = "memberUpdated";
|
|
/**@const*/EditorSession.signalMemberRemoved = "memberRemoved";
|
|
/**@const*/EditorSession.signalCursorAdded = "cursorAdded";
|
|
/**@const*/EditorSession.signalCursorRemoved = "cursorRemoved";
|
|
/**@const*/EditorSession.signalCursorMoved = "cursorMoved";
|
|
/**@const*/EditorSession.signalParagraphChanged = "paragraphChanged";
|
|
/**@const*/EditorSession.signalCommonStyleCreated = "styleCreated";
|
|
/**@const*/EditorSession.signalCommonStyleDeleted = "styleDeleted";
|
|
/**@const*/EditorSession.signalParagraphStyleModified = "paragraphStyleModified";
|
|
/**@const*/EditorSession.signalUndoStackChanged = "signalUndoStackChanged";
|
|
|
|
return EditorSession;
|
|
});
|