/*!
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* Ext JS Library 3.1.0
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* Copyright(c) 2006-2009 Ext JS, LLC
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* licensing@extjs.com
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* http://www.extjs.com/license
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*/
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/**
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* @class Ext.CompositeElementLite
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* <p>This class encapsulates a <i>collection</i> of DOM elements, providing methods to filter
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* members, or to perform collective actions upon the whole set.</p>
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* <p>Although they are not listed, this class supports all of the methods of {@link Ext.Element} and
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* {@link Ext.Fx}. The methods from these classes will be performed on all the elements in this collection.</p>
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* Example:<pre><code>
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var els = Ext.select("#some-el div.some-class");
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// or select directly from an existing element
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var el = Ext.get('some-el');
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el.select('div.some-class');
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els.setWidth(100); // all elements become 100 width
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els.hide(true); // all elements fade out and hide
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// or
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els.setWidth(100).hide(true);
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</code>
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*/
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Ext.CompositeElementLite = function(els, root){
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/**
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* <p>The Array of DOM elements which this CompositeElement encapsulates. Read-only.</p>
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* <p>This will not <i>usually</i> be accessed in developers' code, but developers wishing
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* to augment the capabilities of the CompositeElementLite class may use it when adding
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* methods to the class.</p>
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* <p>For example to add the <code>nextAll</code> method to the class to <b>add</b> all
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* following siblings of selected elements, the code would be</p><code><pre>
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Ext.override(Ext.CompositeElementLite, {
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nextAll: function() {
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var els = this.elements, i, l = els.length, n, r = [], ri = -1;
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// Loop through all elements in this Composite, accumulating
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// an Array of all siblings.
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for (i = 0; i < l; i++) {
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for (n = els[i].nextSibling; n; n = n.nextSibling) {
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r[++ri] = n;
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}
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}
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// Add all found siblings to this Composite
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return this.add(r);
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}
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});</pre></code>
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* @type Array
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* @property elements
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*/
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this.elements = [];
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this.add(els, root);
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this.el = new Ext.Element.Flyweight();
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};
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Ext.CompositeElementLite.prototype = {
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isComposite: true,
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// private
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getElement : function(el){
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// Set the shared flyweight dom property to the current element
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var e = this.el;
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e.dom = el;
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e.id = el.id;
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return e;
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},
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// private
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transformElement : function(el){
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return Ext.getDom(el);
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},
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/**
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* Returns the number of elements in this Composite.
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* @return Number
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*/
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getCount : function(){
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return this.elements.length;
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},
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/**
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* Adds elements to this Composite object.
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* @param {Mixed} els Either an Array of DOM elements to add, or another Composite object who's elements should be added.
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* @return {CompositeElement} This Composite object.
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*/
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add : function(els, root){
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var me = this,
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elements = me.elements;
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if(!els){
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return this;
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}
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if(Ext.isString(els)){
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els = Ext.Element.selectorFunction(els, root);
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}else if(els.isComposite){
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els = els.elements;
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}else if(!Ext.isIterable(els)){
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els = [els];
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}
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for(var i = 0, len = els.length; i < len; ++i){
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elements.push(me.transformElement(els[i]));
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}
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return me;
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},
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invoke : function(fn, args){
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var me = this,
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els = me.elements,
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len = els.length,
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e;
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for(i = 0; i<len; i++) {
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e = els[i];
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if(e){
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Ext.Element.prototype[fn].apply(me.getElement(e), args);
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}
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}
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return me;
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},
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/**
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* Returns a flyweight Element of the dom element object at the specified index
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* @param {Number} index
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* @return {Ext.Element}
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*/
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item : function(index){
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var me = this,
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el = me.elements[index],
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out = null;
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if(el){
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out = me.getElement(el);
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}
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return out;
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},
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// fixes scope with flyweight
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addListener : function(eventName, handler, scope, opt){
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var els = this.elements,
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len = els.length,
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i, e;
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for(i = 0; i<len; i++) {
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e = els[i];
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if(e) {
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Ext.EventManager.on(e, eventName, handler, scope || e, opt);
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}
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}
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return this;
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},
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/**
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* <p>Calls the passed function for each element in this composite.</p>
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* @param {Function} fn The function to call. The function is passed the following parameters:<ul>
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* <li><b>el</b> : Element<div class="sub-desc">The current Element in the iteration.
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* <b>This is the flyweight (shared) Ext.Element instance, so if you require a
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* a reference to the dom node, use el.dom.</b></div></li>
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* <li><b>c</b> : Composite<div class="sub-desc">This Composite object.</div></li>
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* <li><b>idx</b> : Number<div class="sub-desc">The zero-based index in the iteration.</div></li>
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* </ul>
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* @param {Object} scope (optional) The scope (<i>this</i> reference) in which the function is executed. (defaults to the Element)
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* @return {CompositeElement} this
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*/
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each : function(fn, scope){
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var me = this,
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els = me.elements,
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len = els.length,
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i, e;
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for(i = 0; i<len; i++) {
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e = els[i];
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if(e){
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e = this.getElement(e);
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if(fn.call(scope || e, e, me, i)){
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break;
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}
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}
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}
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return me;
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},
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/**
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* Clears this Composite and adds the elements passed.
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* @param {Mixed} els Either an array of DOM elements, or another Composite from which to fill this Composite.
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* @return {CompositeElement} this
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*/
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fill : function(els){
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var me = this;
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me.elements = [];
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me.add(els);
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return me;
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},
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/**
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* Filters this composite to only elements that match the passed selector.
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* @param {String/Function} selector A string CSS selector or a comparison function.
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* The comparison function will be called with the following arguments:<ul>
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* <li><code>el</code> : Ext.Element<div class="sub-desc">The current DOM element.</div></li>
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* <li><code>index</code> : Number<div class="sub-desc">The current index within the collection.</div></li>
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* </ul>
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* @return {CompositeElement} this
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*/
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filter : function(selector){
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var els = [],
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me = this,
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elements = me.elements,
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fn = Ext.isFunction(selector) ? selector
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: function(el){
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return el.is(selector);
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};
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me.each(function(el, self, i){
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if(fn(el, i) !== false){
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els[els.length] = me.transformElement(el);
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}
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});
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me.elements = els;
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return me;
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},
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/**
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* Find the index of the passed element within the composite collection.
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* @param el {Mixed} The id of an element, or an Ext.Element, or an HtmlElement to find within the composite collection.
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* @return Number The index of the passed Ext.Element in the composite collection, or -1 if not found.
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*/
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indexOf : function(el){
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return this.elements.indexOf(this.transformElement(el));
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},
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/**
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* Replaces the specified element with the passed element.
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* @param {Mixed} el The id of an element, the Element itself, the index of the element in this composite
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* to replace.
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* @param {Mixed} replacement The id of an element or the Element itself.
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* @param {Boolean} domReplace (Optional) True to remove and replace the element in the document too.
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* @return {CompositeElement} this
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*/
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replaceElement : function(el, replacement, domReplace){
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var index = !isNaN(el) ? el : this.indexOf(el),
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d;
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if(index > -1){
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replacement = Ext.getDom(replacement);
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if(domReplace){
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d = this.elements[index];
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d.parentNode.insertBefore(replacement, d);
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Ext.removeNode(d);
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}
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this.elements.splice(index, 1, replacement);
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}
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return this;
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},
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/**
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* Removes all elements.
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*/
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clear : function(){
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this.elements = [];
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}
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};
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Ext.CompositeElementLite.prototype.on = Ext.CompositeElementLite.prototype.addListener;
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(function(){
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var fnName,
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ElProto = Ext.Element.prototype,
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CelProto = Ext.CompositeElementLite.prototype;
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for(fnName in ElProto){
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if(Ext.isFunction(ElProto[fnName])){
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(function(fnName){
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CelProto[fnName] = CelProto[fnName] || function(){
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return this.invoke(fnName, arguments);
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};
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}).call(CelProto, fnName);
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}
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}
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})();
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if(Ext.DomQuery){
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Ext.Element.selectorFunction = Ext.DomQuery.select;
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}
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/**
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* Selects elements based on the passed CSS selector to enable {@link Ext.Element Element} methods
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* to be applied to many related elements in one statement through the returned {@link Ext.CompositeElement CompositeElement} or
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* {@link Ext.CompositeElementLite CompositeElementLite} object.
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* @param {String/Array} selector The CSS selector or an array of elements
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* @param {HTMLElement/String} root (optional) The root element of the query or id of the root
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* @return {CompositeElementLite/CompositeElement}
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* @member Ext.Element
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* @method select
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*/
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Ext.Element.select = function(selector, root){
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var els;
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if(typeof selector == "string"){
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els = Ext.Element.selectorFunction(selector, root);
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}else if(selector.length !== undefined){
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els = selector;
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}else{
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throw "Invalid selector";
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}
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return new Ext.CompositeElementLite(els);
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};
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/**
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* Selects elements based on the passed CSS selector to enable {@link Ext.Element Element} methods
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* to be applied to many related elements in one statement through the returned {@link Ext.CompositeElement CompositeElement} or
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* {@link Ext.CompositeElementLite CompositeElementLite} object.
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* @param {String/Array} selector The CSS selector or an array of elements
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* @param {HTMLElement/String} root (optional) The root element of the query or id of the root
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* @return {CompositeElementLite/CompositeElement}
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* @member Ext
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* @method select
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*/
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Ext.select = Ext.Element.select;
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