/*!
* Ext JS Library 3.3.0
* 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;
}
};
}());