CompositeElement.js
资源名称:ext-3.1.0.zip [点击查看]
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上传日期:2022-08-06
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文件大小:5k
源码类别:
JavaScript
开发平台:
JavaScript
- /*! * Ext JS Library 3.1.0 * Copyright(c) 2006-2009 Ext JS, LLC * licensing@extjs.com * http://www.extjs.com/license */ /**
- * @class Ext.CompositeElement
- * @extends Ext.CompositeElementLite
- * <p>This class encapsulates a <i>collection</i> of DOM elements, providing methods to filter
- * members, or to perform collective actions upon the whole set.</p>
- * <p>Although they are not listed, this class supports all of the methods of {@link Ext.Element} and
- * {@link Ext.Fx}. The methods from these classes will be performed on all the elements in this collection.</p>
- * <p>All methods return <i>this</i> and can be chained.</p>
- * Usage:
- <pre><code>
- var els = Ext.select("#some-el div.some-class", true);
- // or select directly from an existing element
- var el = Ext.get('some-el');
- el.select('div.some-class', true);
- els.setWidth(100); // all elements become 100 width
- els.hide(true); // all elements fade out and hide
- // or
- els.setWidth(100).hide(true);
- </code></pre>
- */
- Ext.CompositeElement = function(els, root){
- this.elements = [];
- this.add(els, root);
- };
- Ext.extend(Ext.CompositeElement, Ext.CompositeElementLite, {
- // private
- getElement : function(el){
- // In this case just return it, since we already have a reference to it
- return el;
- },
- // private
- transformElement : function(el){
- return Ext.get(el);
- }
- /**
- * Adds elements to this composite.
- * @param {String/Array} els A string CSS selector, an array of elements or an element
- * @return {CompositeElement} this
- */
- /**
- * Returns the Element object at the specified index
- * @param {Number} index
- * @return {Ext.Element}
- */
- /**
- * Iterates each <code>element</code> in this <code>composite</code>
- * calling the supplied function using {@link Ext#each}.
- * @param {Function} fn The function to be called with each
- * <code>element</code>. If the supplied function returns <tt>false</tt>,
- * iteration stops. This function is called with the following arguments:
- * <div class="mdetail-params"><ul>
- * <li><code>element</code> : <i>Ext.Element</i><div class="sub-desc">The element at the current <code>index</code>
- * in the <code>composite</code></div></li>
- * <li><code>composite</code> : <i>Object</i> <div class="sub-desc">This composite.</div></li>
- * <li><code>index</code> : <i>Number</i> <div class="sub-desc">The current index within the <code>composite</code> </div></li>
- * </ul></div>
- * @param {Object} scope (optional) The scope (<code><this</code> reference) in which the specified function is executed.
- * Defaults to the <code>element</code> at the current <code>index</code>
- * within the composite.
- * @return {CompositeElement} this
- */
- });
- /**
- * Selects elements based on the passed CSS selector to enable {@link Ext.Element Element} methods
- * to be applied to many related elements in one statement through the returned {@link Ext.CompositeElement CompositeElement} or
- * {@link Ext.CompositeElementLite CompositeElementLite} object.
- * @param {String/Array} selector The CSS selector or an array of elements
- * @param {Boolean} unique (optional) true to create a unique Ext.Element for each element (defaults to a shared flyweight object)
- * @param {HTMLElement/String} root (optional) The root element of the query or id of the root
- * @return {CompositeElementLite/CompositeElement}
- * @member Ext.Element
- * @method select
- */
- Ext.Element.select = function(selector, unique, root){
- var els;
- if(typeof selector == "string"){
- els = Ext.Element.selectorFunction(selector, root);
- }else if(selector.length !== undefined){
- els = selector;
- }else{
- throw "Invalid selector";
- }
- return (unique === true) ? new Ext.CompositeElement(els) : new Ext.CompositeElementLite(els);
- };
- /**
- * Selects elements based on the passed CSS selector to enable {@link Ext.Element Element} methods
- * to be applied to many related elements in one statement through the returned {@link Ext.CompositeElement CompositeElement} or
- * {@link Ext.CompositeElementLite CompositeElementLite} object.
- * @param {String/Array} selector The CSS selector or an array of elements
- * @param {Boolean} unique (optional) true to create a unique Ext.Element for each element (defaults to a shared flyweight object)
- * @param {HTMLElement/String} root (optional) The root element of the query or id of the root
- * @return {CompositeElementLite/CompositeElement}
- * @member Ext.Element
- * @method select
- */
- Ext.select = Ext.Element.select;