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File: public/js/tinymce/src/core/src/main/js/dom/ElementUtils.js

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File: public/js/tinymce/src/core/src/main/js/dom/ElementUtils.js
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/** * ElementUtils.js * * Released under LGPL License. * Copyright (c) 1999-2017 Ephox Corp. All rights reserved * * License: http://www.tinymce.com/license * Contributing: http://www.tinymce.com/contributing */ /** * Utility class for various element specific functions. * * @private * @class tinymce.dom.ElementUtils */ define( 'tinymce.core.dom.ElementUtils', [ "tinymce.core.dom.Bookmarks", "tinymce.core.util.Tools" ], function (Bookmarks, Tools) { var each = Tools.each; var ElementUtils = function (dom) { /** * Compares two nodes and checks if it's attributes and styles matches. * This doesn't compare classes as items since their order is significant. * * @method compare * @param {Node} node1 First node to compare with. * @param {Node} node2 Second node to compare with. * @return {boolean} True/false if the nodes are the same or not. */ this.compare = function (node1, node2) { // Not the same name if (node1.nodeName != node2.nodeName) { return false; } /** * Returns all the nodes attributes excluding internal ones, styles and classes. * * @private * @param {Node} node Node to get attributes from. * @return {Object} Name/value object with attributes and attribute values. */ var getAttribs = function (node) { var attribs = {}; each(dom.getAttribs(node), function (attr) { var name = attr.nodeName.toLowerCase(); // Don't compare internal attributes or style if (name.indexOf('_') !== 0 && name !== 'style' && name.indexOf('data-') !== 0) { attribs[name] = dom.getAttrib(node, name); } }); return attribs; }; /** * Compares two objects checks if it's key + value exists in the other one. * * @private * @param {Object} obj1 First object to compare. * @param {Object} obj2 Second object to compare. * @return {boolean} True/false if the objects matches or not. */ var compareObjects = function (obj1, obj2) { var value, name; for (name in obj1) { // Obj1 has item obj2 doesn't have if (obj1.hasOwnProperty(name)) { value = obj2[name]; // Obj2 doesn't have obj1 item if (typeof value == "undefined") { return false; } // Obj2 item has a different value if (obj1[name] != value) { return false; } // Delete similar value delete obj2[name]; } } // Check if obj 2 has something obj 1 doesn't have for (name in obj2) { // Obj2 has item obj1 doesn't have if (obj2.hasOwnProperty(name)) { return false; } } return true; }; // Attribs are not the same if (!compareObjects(getAttribs(node1), getAttribs(node2))) { return false; } // Styles are not the same if (!compareObjects(dom.parseStyle(dom.getAttrib(node1, 'style')), dom.parseStyle(dom.getAttrib(node2, 'style')))) { return false; } return !Bookmarks.isBookmarkNode(node1) && !Bookmarks.isBookmarkNode(node2); }; }; return ElementUtils; } );