Current Path : C:/xampp/htdocs/moodle/lib/yuilib/3.17.2/editor-br/ |
Current File : C:/xampp/htdocs/moodle/lib/yuilib/3.17.2/editor-br/editor-br.js |
/* YUI 3.17.2 (build 9c3c78e) Copyright 2014 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */ YUI.add('editor-br', function (Y, NAME) { /** * Plugin for Editor to normalize BR's. * @class Plugin.EditorBR * @extends Base * @constructor * @module editor * @submodule editor-br */ var EditorBR = function() { EditorBR.superclass.constructor.apply(this, arguments); }, HOST = 'host', LI = 'li'; Y.extend(EditorBR, Y.Base, { /** * Frame keyDown handler that normalizes BR's when pressing ENTER. * @private * @method _onKeyDown */ _onKeyDown: function(e) { if (e.stopped) { e.halt(); return; } if (e.keyCode === 13) { var host = this.get(HOST), inst = host.getInstance(), sel = new inst.EditorSelection(); if (sel) { if (Y.UA.ie) { if (!sel.anchorNode || (!sel.anchorNode.test(LI) && !sel.anchorNode.ancestor(LI))) { host.execCommand('inserthtml', inst.EditorSelection.CURSOR); e.halt(); } } if (Y.UA.webkit) { if (!sel.anchorNode || (!sel.anchorNode.test(LI) && !sel.anchorNode.ancestor(LI))) { host.frame._execCommand('insertlinebreak', null); e.halt(); } } } } }, /** * Adds listeners for keydown in IE and Webkit. Also fires insertbeonreturn for supporting browsers. * @private * @method _afterEditorReady */ _afterEditorReady: function() { var inst = this.get(HOST).getInstance(), container; try { inst.config.doc.execCommand('insertbronreturn', null, true); } catch (bre) {} if (Y.UA.ie || Y.UA.webkit) { container = inst.EditorSelection.ROOT; if (container.test('body')) { container = inst.config.doc; } inst.on('keydown', Y.bind(this._onKeyDown, this), container); } }, /** * Adds a nodeChange listener only for FF, in the event of a backspace or delete, it creates an empy textNode * inserts it into the DOM after the e.changedNode, then removes it. Causing FF to redraw the content. * @private * @method _onNodeChange * @param {Event} e The nodeChange event. */ _onNodeChange: function(e) { switch (e.changedType) { case 'backspace-up': case 'backspace-down': case 'delete-up': /* * This forced FF to redraw the content on backspace. * On some occasions FF will leave a cursor residue after content has been deleted. * Dropping in the empty textnode and then removing it causes FF to redraw and * remove the "ghost cursors" */ var inst = this.get(HOST).getInstance(), d = e.changedNode, t = inst.config.doc.createTextNode(' '); d.appendChild(t); d.removeChild(t); break; } }, initializer: function() { var host = this.get(HOST); if (host.editorPara) { Y.error('Can not plug EditorBR and EditorPara at the same time.'); return; } host.after('ready', Y.bind(this._afterEditorReady, this)); if (Y.UA.gecko) { host.on('nodeChange', Y.bind(this._onNodeChange, this)); } } }, { /** * editorBR * @static * @property NAME */ NAME: 'editorBR', /** * editorBR * @static * @property NS */ NS: 'editorBR', ATTRS: { host: { value: false } } }); Y.namespace('Plugin'); Y.Plugin.EditorBR = EditorBR; }, '3.17.2', {"requires": ["editor-base"]});