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9 <pre class="prettyprint lang-js">/*!
10 * Ext JS Library 3.2.1
11 * Copyright(c) 2006-2010 Ext JS, Inc.
13 * http://www.extjs.com/license
18 Ext.Element.addMethods(function(){
19 var PARENTNODE = 'parentNode',
20 NEXTSIBLING = 'nextSibling',
21 PREVIOUSSIBLING = 'previousSibling',
26 <div id="method-Ext.Element-findParent"></div>/**
27 * Looks at this node and then at parent nodes for a match of the passed simple selector (e.g. div.some-class or span:first-child)
28 * @param {String} selector The simple selector to test
29 * @param {Number/Mixed} maxDepth (optional) The max depth to search as a number or element (defaults to 50 || document.body)
30 * @param {Boolean} returnEl (optional) True to return a Ext.Element object instead of DOM node
31 * @return {HTMLElement} The matching DOM node (or null if no match was found)
33 findParent : function(simpleSelector, maxDepth, returnEl){
38 if(Ext.isGecko && Object.prototype.toString.call(p) == '[object XULElement]') {
41 maxDepth = maxDepth || 50;
42 if (isNaN(maxDepth)) {
43 stopEl = Ext.getDom(maxDepth);
44 maxDepth = Number.MAX_VALUE;
46 while(p && p.nodeType == 1 && depth < maxDepth && p != b && p != stopEl){
47 if(DQ.is(p, simpleSelector)){
48 return returnEl ? GET(p) : p;
56 <div id="method-Ext.Element-findParentNode"></div>/**
57 * Looks at parent nodes for a match of the passed simple selector (e.g. div.some-class or span:first-child)
58 * @param {String} selector The simple selector to test
59 * @param {Number/Mixed} maxDepth (optional) The max depth to
60 search as a number or element (defaults to 10 || document.body)
61 * @param {Boolean} returnEl (optional) True to return a Ext.Element object instead of DOM node
62 * @return {HTMLElement} The matching DOM node (or null if no match was found)
64 findParentNode : function(simpleSelector, maxDepth, returnEl){
65 var p = Ext.fly(this.dom.parentNode, '_internal');
66 return p ? p.findParent(simpleSelector, maxDepth, returnEl) : null;
69 <div id="method-Ext.Element-up"></div>/**
70 * Walks up the dom looking for a parent node that matches the passed simple selector (e.g. div.some-class or span:first-child).
71 * This is a shortcut for findParentNode() that always returns an Ext.Element.
72 * @param {String} selector The simple selector to test
73 * @param {Number/Mixed} maxDepth (optional) The max depth to
74 search as a number or element (defaults to 10 || document.body)
75 * @return {Ext.Element} The matching DOM node (or null if no match was found)
77 up : function(simpleSelector, maxDepth){
78 return this.findParentNode(simpleSelector, maxDepth, true);
81 <div id="method-Ext.Element-select"></div>/**
82 * Creates a {@link Ext.CompositeElement} for child nodes based on the passed CSS selector (the selector should not contain an id).
83 * @param {String} selector The CSS selector
84 * @return {CompositeElement/CompositeElementLite} The composite element
86 select : function(selector){
87 return Ext.Element.select(selector, this.dom);
90 <div id="method-Ext.Element-query"></div>/**
91 * Selects child nodes based on the passed CSS selector (the selector should not contain an id).
92 * @param {String} selector The CSS selector
93 * @return {Array} An array of the matched nodes
95 query : function(selector){
96 return DQ.select(selector, this.dom);
99 <div id="method-Ext.Element-child"></div>/**
100 * Selects a single child at any depth below this element based on the passed CSS selector (the selector should not contain an id).
101 * @param {String} selector The CSS selector
102 * @param {Boolean} returnDom (optional) True to return the DOM node instead of Ext.Element (defaults to false)
103 * @return {HTMLElement/Ext.Element} The child Ext.Element (or DOM node if returnDom = true)
105 child : function(selector, returnDom){
106 var n = DQ.selectNode(selector, this.dom);
107 return returnDom ? n : GET(n);
110 <div id="method-Ext.Element-down"></div>/**
111 * Selects a single *direct* child based on the passed CSS selector (the selector should not contain an id).
112 * @param {String} selector The CSS selector
113 * @param {Boolean} returnDom (optional) True to return the DOM node instead of Ext.Element (defaults to false)
114 * @return {HTMLElement/Ext.Element} The child Ext.Element (or DOM node if returnDom = true)
116 down : function(selector, returnDom){
117 var n = DQ.selectNode(" > " + selector, this.dom);
118 return returnDom ? n : GET(n);
121 <div id="method-Ext.Element-parent"></div>/**
122 * Gets the parent node for this element, optionally chaining up trying to match a selector
123 * @param {String} selector (optional) Find a parent node that matches the passed simple selector
124 * @param {Boolean} returnDom (optional) True to return a raw dom node instead of an Ext.Element
125 * @return {Ext.Element/HTMLElement} The parent node or null
127 parent : function(selector, returnDom){
128 return this.matchNode(PARENTNODE, PARENTNODE, selector, returnDom);
131 <div id="method-Ext.Element-next"></div>/**
132 * Gets the next sibling, skipping text nodes
133 * @param {String} selector (optional) Find the next sibling that matches the passed simple selector
134 * @param {Boolean} returnDom (optional) True to return a raw dom node instead of an Ext.Element
135 * @return {Ext.Element/HTMLElement} The next sibling or null
137 next : function(selector, returnDom){
138 return this.matchNode(NEXTSIBLING, NEXTSIBLING, selector, returnDom);
141 <div id="method-Ext.Element-prev"></div>/**
142 * Gets the previous sibling, skipping text nodes
143 * @param {String} selector (optional) Find the previous sibling that matches the passed simple selector
144 * @param {Boolean} returnDom (optional) True to return a raw dom node instead of an Ext.Element
145 * @return {Ext.Element/HTMLElement} The previous sibling or null
147 prev : function(selector, returnDom){
148 return this.matchNode(PREVIOUSSIBLING, PREVIOUSSIBLING, selector, returnDom);
152 <div id="method-Ext.Element-first"></div>/**
153 * Gets the first child, skipping text nodes
154 * @param {String} selector (optional) Find the next sibling that matches the passed simple selector
155 * @param {Boolean} returnDom (optional) True to return a raw dom node instead of an Ext.Element
156 * @return {Ext.Element/HTMLElement} The first child or null
158 first : function(selector, returnDom){
159 return this.matchNode(NEXTSIBLING, 'firstChild', selector, returnDom);
162 <div id="method-Ext.Element-last"></div>/**
163 * Gets the last child, skipping text nodes
164 * @param {String} selector (optional) Find the previous sibling that matches the passed simple selector
165 * @param {Boolean} returnDom (optional) True to return a raw dom node instead of an Ext.Element
166 * @return {Ext.Element/HTMLElement} The last child or null
168 last : function(selector, returnDom){
169 return this.matchNode(PREVIOUSSIBLING, 'lastChild', selector, returnDom);
172 matchNode : function(dir, start, selector, returnDom){
173 var n = this.dom[start];
175 if(n.nodeType == 1 && (!selector || DQ.is(n, selector))){
176 return !returnDom ? GET(n) : n;