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