/*!
 * Ext JS Library 3.2.0
 * Copyright(c) 2006-2010 Ext JS, Inc.
 * licensing@extjs.com
 * http://www.extjs.com/license
 */
/**
 * @class Ext.Element
 */
Ext.Element.addMethods(function(){
	var PARENTNODE = 'parentNode',
		NEXTSIBLING = 'nextSibling',
		PREVIOUSSIBLING = 'previousSibling',
		DQ = Ext.DomQuery,
		GET = Ext.get;
	
	return {
		
/** * 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) * @param {String} selector The simple selector to test * @param {Number/Mixed} maxDepth (optional) The max depth to search as a number or element (defaults to 50 || document.body) * @param {Boolean} returnEl (optional) True to return a Ext.Element object instead of DOM node * @return {HTMLElement} The matching DOM node (or null if no match was found) */ findParent : function(simpleSelector, maxDepth, returnEl){ var p = this.dom, b = document.body, depth = 0, stopEl; if(Ext.isGecko && Object.prototype.toString.call(p) == '[object XULElement]') { return null; } maxDepth = maxDepth || 50; if (isNaN(maxDepth)) { stopEl = Ext.getDom(maxDepth); maxDepth = Number.MAX_VALUE; } while(p && p.nodeType == 1 && depth < maxDepth && p != b && p != stopEl){ if(DQ.is(p, simpleSelector)){ return returnEl ? GET(p) : p; } depth++; p = p.parentNode; } return null; },
/** * Looks at parent nodes for a match of the passed simple selector (e.g. div.some-class or span:first-child) * @param {String} selector The simple selector to test * @param {Number/Mixed} maxDepth (optional) The max depth to search as a number or element (defaults to 10 || document.body) * @param {Boolean} returnEl (optional) True to return a Ext.Element object instead of DOM node * @return {HTMLElement} The matching DOM node (or null if no match was found) */ findParentNode : function(simpleSelector, maxDepth, returnEl){ var p = Ext.fly(this.dom.parentNode, '_internal'); return p ? p.findParent(simpleSelector, maxDepth, returnEl) : null; },
/** * Walks up the dom looking for a parent node that matches the passed simple selector (e.g. div.some-class or span:first-child). * This is a shortcut for findParentNode() that always returns an Ext.Element. * @param {String} selector The simple selector to test * @param {Number/Mixed} maxDepth (optional) The max depth to search as a number or element (defaults to 10 || document.body) * @return {Ext.Element} The matching DOM node (or null if no match was found) */ up : function(simpleSelector, maxDepth){ return this.findParentNode(simpleSelector, maxDepth, true); },
/** * Creates a {@link Ext.CompositeElement} for child nodes based on the passed CSS selector (the selector should not contain an id). * @param {String} selector The CSS selector * @return {CompositeElement/CompositeElementLite} The composite element */ select : function(selector){ return Ext.Element.select(selector, this.dom); },
/** * Selects child nodes based on the passed CSS selector (the selector should not contain an id). * @param {String} selector The CSS selector * @return {Array} An array of the matched nodes */ query : function(selector){ return DQ.select(selector, this.dom); },
/** * Selects a single child at any depth below this element based on the passed CSS selector (the selector should not contain an id). * @param {String} selector The CSS selector * @param {Boolean} returnDom (optional) True to return the DOM node instead of Ext.Element (defaults to false) * @return {HTMLElement/Ext.Element} The child Ext.Element (or DOM node if returnDom = true) */ child : function(selector, returnDom){ var n = DQ.selectNode(selector, this.dom); return returnDom ? n : GET(n); },
/** * Selects a single *direct* child based on the passed CSS selector (the selector should not contain an id). * @param {String} selector The CSS selector * @param {Boolean} returnDom (optional) True to return the DOM node instead of Ext.Element (defaults to false) * @return {HTMLElement/Ext.Element} The child Ext.Element (or DOM node if returnDom = true) */ down : function(selector, returnDom){ var n = DQ.selectNode(" > " + selector, this.dom); return returnDom ? n : GET(n); },
/** * Gets the parent node for this element, optionally chaining up trying to match a selector * @param {String} selector (optional) Find a parent node that matches the passed simple selector * @param {Boolean} returnDom (optional) True to return a raw dom node instead of an Ext.Element * @return {Ext.Element/HTMLElement} The parent node or null */ parent : function(selector, returnDom){ return this.matchNode(PARENTNODE, PARENTNODE, selector, returnDom); },
/** * Gets the next sibling, skipping text nodes * @param {String} selector (optional) Find the next sibling that matches the passed simple selector * @param {Boolean} returnDom (optional) True to return a raw dom node instead of an Ext.Element * @return {Ext.Element/HTMLElement} The next sibling or null */ next : function(selector, returnDom){ return this.matchNode(NEXTSIBLING, NEXTSIBLING, selector, returnDom); },
/** * Gets the previous sibling, skipping text nodes * @param {String} selector (optional) Find the previous sibling that matches the passed simple selector * @param {Boolean} returnDom (optional) True to return a raw dom node instead of an Ext.Element * @return {Ext.Element/HTMLElement} The previous sibling or null */ prev : function(selector, returnDom){ return this.matchNode(PREVIOUSSIBLING, PREVIOUSSIBLING, selector, returnDom); },
/** * Gets the first child, skipping text nodes * @param {String} selector (optional) Find the next sibling that matches the passed simple selector * @param {Boolean} returnDom (optional) True to return a raw dom node instead of an Ext.Element * @return {Ext.Element/HTMLElement} The first child or null */ first : function(selector, returnDom){ return this.matchNode(NEXTSIBLING, 'firstChild', selector, returnDom); },
/** * Gets the last child, skipping text nodes * @param {String} selector (optional) Find the previous sibling that matches the passed simple selector * @param {Boolean} returnDom (optional) True to return a raw dom node instead of an Ext.Element * @return {Ext.Element/HTMLElement} The last child or null */ last : function(selector, returnDom){ return this.matchNode(PREVIOUSSIBLING, 'lastChild', selector, returnDom); }, matchNode : function(dir, start, selector, returnDom){ var n = this.dom[start]; while(n){ if(n.nodeType == 1 && (!selector || DQ.is(n, selector))){ return !returnDom ? GET(n) : n; } n = n[dir]; } return null; } } }());