3 * Copyright(c) 2006-2010 Ext JS, Inc.
5 * http://www.extjs.com/license
8 window.undefined = window.undefined;
12 * Ext core utilities and functions.
18 * The version of the framework
30 * Copies all the properties of config to obj.
31 * @param {Object} obj The receiver of the properties
32 * @param {Object} config The source of the properties
33 * @param {Object} defaults A different object that will also be applied for default values
34 * @return {Object} returns obj
37 Ext.apply = function(o, c, defaults){
38 // no "this" reference for friendly out of scope calls
40 Ext.apply(o, defaults);
42 if(o && c && typeof c == 'object'){
52 toString = Object.prototype.toString,
53 ua = navigator.userAgent.toLowerCase(),
58 isStrict = DOC.compatMode == "CSS1Compat",
59 isOpera = check(/opera/),
60 isChrome = check(/\bchrome\b/),
61 isWebKit = check(/webkit/),
62 isSafari = !isChrome && check(/safari/),
63 isSafari2 = isSafari && check(/applewebkit\/4/), // unique to Safari 2
64 isSafari3 = isSafari && check(/version\/3/),
65 isSafari4 = isSafari && check(/version\/4/),
66 isIE = !isOpera && check(/msie/),
67 isIE7 = isIE && check(/msie 7/),
68 isIE8 = isIE && check(/msie 8/),
69 isIE6 = isIE && !isIE7 && !isIE8,
70 isGecko = !isWebKit && check(/gecko/),
71 isGecko2 = isGecko && check(/rv:1\.8/),
72 isGecko3 = isGecko && check(/rv:1\.9/),
73 isBorderBox = isIE && !isStrict,
74 isWindows = check(/windows|win32/),
75 isMac = check(/macintosh|mac os x/),
76 isAir = check(/adobeair/),
77 isLinux = check(/linux/),
78 isSecure = /^https/i.test(window.location.protocol);
80 // remove css image flicker
83 DOC.execCommand("BackgroundImageCache", false, true);
89 * URL to a blank file used by Ext when in secure mode for iframe src and onReady src to prevent
90 * the IE insecure content warning (<tt>'about:blank'</tt>, except for IE in secure mode, which is <tt>'javascript:""'</tt>).
93 SSL_SECURE_URL : isSecure && isIE ? 'javascript:""' : 'about:blank',
95 * True if the browser is in strict (standards-compliant) mode, as opposed to quirks mode
100 * True if the page is running over SSL
105 * True when the document is fully initialized and ready for action
111 * True if the {@link Ext.Fx} Class is available
117 * True to automatically uncache orphaned Ext.Elements periodically (defaults to true)
120 enableGarbageCollector : true,
123 * True to automatically purge event listeners during garbageCollection (defaults to false).
126 enableListenerCollection : false,
129 * EXPERIMENTAL - True to cascade listener removal to child elements when an element is removed.
130 * Currently not optimized for performance.
133 enableNestedListenerRemoval : false,
136 * Indicates whether to use native browser parsing for JSON methods.
137 * This option is ignored if the browser does not support native JSON methods.
138 * <b>Note: Native JSON methods will not work with objects that have functions.
139 * Also, property names must be quoted, otherwise the data will not parse.</b> (Defaults to false)
142 USE_NATIVE_JSON : false,
145 * Copies all the properties of config to obj if they don't already exist.
146 * @param {Object} obj The receiver of the properties
147 * @param {Object} config The source of the properties
148 * @return {Object} returns obj
150 applyIf : function(o, c){
153 if(!Ext.isDefined(o[p])){
162 * Generates unique ids. If the element already has an id, it is unchanged
163 * @param {Mixed} el (optional) The element to generate an id for
164 * @param {String} prefix (optional) Id prefix (defaults "ext-gen")
165 * @return {String} The generated Id.
167 id : function(el, prefix){
168 el = Ext.getDom(el, true) || {};
170 el.id = (prefix || "ext-gen") + (++idSeed);
176 * <p>Extends one class to create a subclass and optionally overrides members with the passed literal. This method
177 * also adds the function "override()" to the subclass that can be used to override members of the class.</p>
178 * For example, to create a subclass of Ext GridPanel:
180 MyGridPanel = Ext.extend(Ext.grid.GridPanel, {
181 constructor: function(config) {
183 // Create configuration for this Grid.
184 var store = new Ext.data.Store({...});
185 var colModel = new Ext.grid.ColumnModel({...});
187 // Create a new config object containing our computed properties
188 // *plus* whatever was in the config parameter.
194 MyGridPanel.superclass.constructor.call(this, config);
196 // Your postprocessing here
199 yourMethod: function() {
205 * <p>This function also supports a 3-argument call in which the subclass's constructor is
206 * passed as an argument. In this form, the parameters are as follows:</p>
207 * <div class="mdetail-params"><ul>
208 * <li><code>subclass</code> : Function <div class="sub-desc">The subclass constructor.</div></li>
209 * <li><code>superclass</code> : Function <div class="sub-desc">The constructor of class being extended</div></li>
210 * <li><code>overrides</code> : Object <div class="sub-desc">A literal with members which are copied into the subclass's
211 * prototype, and are therefore shared among all instances of the new class.</div></li>
214 * @param {Function} superclass The constructor of class being extended.
215 * @param {Object} overrides <p>A literal with members which are copied into the subclass's
216 * prototype, and are therefore shared between all instances of the new class.</p>
217 * <p>This may contain a special member named <tt><b>constructor</b></tt>. This is used
218 * to define the constructor of the new class, and is returned. If this property is
219 * <i>not</i> specified, a constructor is generated and returned which just calls the
220 * superclass's constructor passing on its parameters.</p>
221 * <p><b>It is essential that you call the superclass constructor in any provided constructor. See example code.</b></p>
222 * @return {Function} The subclass constructor from the <code>overrides</code> parameter, or a generated one if not provided.
226 var io = function(o){
231 var oc = Object.prototype.constructor;
233 return function(sb, sp, overrides){
234 if(typeof sp == 'object'){
237 sb = overrides.constructor != oc ? overrides.constructor : function(){sp.apply(this, arguments);};
239 var F = function(){},
244 sbp = sb.prototype = new F();
247 if(spp.constructor == oc){
250 sb.override = function(o){
253 sbp.superclass = sbp.supr = (function(){
257 Ext.override(sb, overrides);
258 sb.extend = function(o){return Ext.extend(sb, o);};
264 * Adds a list of functions to the prototype of an existing class, overwriting any existing methods with the same name.
266 Ext.override(MyClass, {
267 newMethod1: function(){
270 newMethod2: function(foo){
275 * @param {Object} origclass The class to override
276 * @param {Object} overrides The list of functions to add to origClass. This should be specified as an object literal
277 * containing one or more methods.
280 override : function(origclass, overrides){
282 var p = origclass.prototype;
283 Ext.apply(p, overrides);
284 if(Ext.isIE && overrides.hasOwnProperty('toString')){
285 p.toString = overrides.toString;
291 * Creates namespaces to be used for scoping variables and classes so that they are not global.
292 * Specifying the last node of a namespace implicitly creates all other nodes. Usage:
294 Ext.namespace('Company', 'Company.data');
295 Ext.namespace('Company.data'); // equivalent and preferable to above syntax
296 Company.Widget = function() { ... }
297 Company.data.CustomStore = function(config) { ... }
299 * @param {String} namespace1
300 * @param {String} namespace2
301 * @param {String} etc
302 * @return {Object} The namespace object. (If multiple arguments are passed, this will be the last namespace created)
305 namespace : function(){
307 Ext.each(arguments, function(v) {
309 o = window[d[0]] = window[d[0]] || {};
310 Ext.each(d.slice(1), function(v2){
311 o = o[v2] = o[v2] || {};
318 * Takes an object and converts it to an encoded URL. e.g. Ext.urlEncode({foo: 1, bar: 2}); would return "foo=1&bar=2". Optionally, property values can be arrays, instead of keys and the resulting string that's returned will contain a name/value pair for each array value.
320 * @param {String} pre (optional) A prefix to add to the url encoded string
323 urlEncode : function(o, pre){
326 e = encodeURIComponent;
328 Ext.iterate(o, function(key, item){
329 empty = Ext.isEmpty(item);
330 Ext.each(empty ? key : item, function(val){
331 buf.push('&', e(key), '=', (!Ext.isEmpty(val) && (val != key || !empty)) ? (Ext.isDate(val) ? Ext.encode(val).replace(/"/g, '') : e(val)) : '');
338 return pre + buf.join('');
342 * Takes an encoded URL and and converts it to an object. Example: <pre><code>
343 Ext.urlDecode("foo=1&bar=2"); // returns {foo: "1", bar: "2"}
344 Ext.urlDecode("foo=1&bar=2&bar=3&bar=4", false); // returns {foo: "1", bar: ["2", "3", "4"]}
346 * @param {String} string
347 * @param {Boolean} overwrite (optional) Items of the same name will overwrite previous values instead of creating an an array (Defaults to false).
348 * @return {Object} A literal with members
350 urlDecode : function(string, overwrite){
351 if(Ext.isEmpty(string)){
355 pairs = string.split('&'),
356 d = decodeURIComponent,
359 Ext.each(pairs, function(pair) {
360 pair = pair.split('=');
363 obj[name] = overwrite || !obj[name] ? value :
364 [].concat(obj[name]).concat(value);
370 * Appends content to the query string of a URL, handling logic for whether to place
371 * a question mark or ampersand.
372 * @param {String} url The URL to append to.
373 * @param {String} s The content to append to the URL.
374 * @return (String) The resulting URL
376 urlAppend : function(url, s){
378 return url + (url.indexOf('?') === -1 ? '?' : '&') + s;
384 * Converts any iterable (numeric indices and a length property) into a true array
385 * Don't use this on strings. IE doesn't support "abc"[0] which this implementation depends on.
386 * For strings, use this instead: "abc".match(/./g) => [a,b,c];
387 * @param {Iterable} the iterable object to be turned into a true Array.
388 * @return (Array) array
390 toArray : function(){
392 function(a, i, j, res){
394 for(var x = 0, len = a.length; x < len; x++) {
397 return res.slice(i || 0, j || res.length);
400 return Array.prototype.slice.call(a, i || 0, j || a.length);
404 isIterable : function(v){
405 //check for array or arguments
406 if(Ext.isArray(v) || v.callee){
409 //check for node list type
410 if(/NodeList|HTMLCollection/.test(toString.call(v))){
413 //NodeList has an item and length property
414 //IXMLDOMNodeList has nextNode method, needs to be checked first.
415 return ((typeof v.nextNode != 'undefined' || v.item) && Ext.isNumber(v.length));
419 * Iterates an array calling the supplied function.
420 * @param {Array/NodeList/Mixed} array The array to be iterated. If this
421 * argument is not really an array, the supplied function is called once.
422 * @param {Function} fn The function to be called with each item. If the
423 * supplied function returns false, iteration stops and this method returns
424 * the current <code>index</code>. This function is called with
425 * the following arguments:
426 * <div class="mdetail-params"><ul>
427 * <li><code>item</code> : <i>Mixed</i>
428 * <div class="sub-desc">The item at the current <code>index</code>
429 * in the passed <code>array</code></div></li>
430 * <li><code>index</code> : <i>Number</i>
431 * <div class="sub-desc">The current index within the array</div></li>
432 * <li><code>allItems</code> : <i>Array</i>
433 * <div class="sub-desc">The <code>array</code> passed as the first
434 * argument to <code>Ext.each</code>.</div></li>
436 * @param {Object} scope The scope (<code>this</code> reference) in which the specified function is executed.
437 * Defaults to the <code>item</code> at the current <code>index</code>
438 * within the passed <code>array</code>.
439 * @return See description for the fn parameter.
441 each : function(array, fn, scope){
442 if(Ext.isEmpty(array, true)){
445 if(!Ext.isIterable(array) || Ext.isPrimitive(array)){
448 for(var i = 0, len = array.length; i < len; i++){
449 if(fn.call(scope || array[i], array[i], i, array) === false){
456 * Iterates either the elements in an array, or each of the properties in an object.
457 * <b>Note</b>: If you are only iterating arrays, it is better to call {@link #each}.
458 * @param {Object/Array} object The object or array to be iterated
459 * @param {Function} fn The function to be called for each iteration.
460 * The iteration will stop if the supplied function returns false, or
461 * all array elements / object properties have been covered. The signature
462 * varies depending on the type of object being interated:
463 * <div class="mdetail-params"><ul>
464 * <li>Arrays : <tt>(Object item, Number index, Array allItems)</tt>
465 * <div class="sub-desc">
466 * When iterating an array, the supplied function is called with each item.</div></li>
467 * <li>Objects : <tt>(String key, Object value, Object)</tt>
468 * <div class="sub-desc">
469 * When iterating an object, the supplied function is called with each key-value pair in
470 * the object, and the iterated object</div></li>
472 * @param {Object} scope The scope (<code>this</code> reference) in which the specified function is executed. Defaults to
473 * the <code>object</code> being iterated.
475 iterate : function(obj, fn, scope){
476 if(Ext.isEmpty(obj)){
479 if(Ext.isIterable(obj)){
480 Ext.each(obj, fn, scope);
482 }else if(typeof obj == 'object'){
483 for(var prop in obj){
484 if(obj.hasOwnProperty(prop)){
485 if(fn.call(scope || obj, prop, obj[prop], obj) === false){
494 * Return the dom node for the passed String (id), dom node, or Ext.Element.
495 * Optional 'strict' flag is needed for IE since it can return 'name' and
496 * 'id' elements by using getElementById.
497 * Here are some examples:
499 // gets dom node based on id
500 var elDom = Ext.getDom('elId');
501 // gets dom node based on the dom node
502 var elDom1 = Ext.getDom(elDom);
504 // If we don't know if we are working with an
505 // Ext.Element or a dom node use Ext.getDom
507 var dom = Ext.getDom(el);
508 // do something with the dom node
511 * <b>Note</b>: the dom node to be found actually needs to exist (be rendered, etc)
512 * when this method is called to be successful.
514 * @return HTMLElement
516 getDom : function(el, strict){
523 if (typeof el == 'string') {
524 var e = DOC.getElementById(el);
525 // IE returns elements with the 'name' and 'id' attribute.
526 // we do a strict check to return the element with only the id attribute
527 if (e && isIE && strict) {
528 if (el == e.getAttribute('id')) {
542 * Returns the current document body as an {@link Ext.Element}.
543 * @return Ext.Element The document body
545 getBody : function(){
546 return Ext.get(DOC.body || DOC.documentElement);
550 * Returns the current document body as an {@link Ext.Element}.
551 * @return Ext.Element The document body
553 getHead : function() {
557 if (head == undefined) {
558 head = Ext.get(DOC.getElementsByTagName("head")[0]);
566 * Removes a DOM node from the document.
569 * <p>Removes this element from the document, removes all DOM event listeners, and deletes the cache reference.
570 * All DOM event listeners are removed from this element. If {@link Ext#enableNestedListenerRemoval} is
571 * <code>true</code>, then DOM event listeners are also removed from all child nodes. The body node
572 * will be ignored if passed in.</p>
573 * @param {HTMLElement} node The node to remove
575 removeNode : isIE && !isIE8 ? function(){
578 if(n && n.tagName != 'BODY'){
579 (Ext.enableNestedListenerRemoval) ? Ext.EventManager.purgeElement(n, true) : Ext.EventManager.removeAll(n);
580 d = d || DOC.createElement('div');
583 delete Ext.elCache[n.id];
587 if(n && n.parentNode && n.tagName != 'BODY'){
588 (Ext.enableNestedListenerRemoval) ? Ext.EventManager.purgeElement(n, true) : Ext.EventManager.removeAll(n);
589 n.parentNode.removeChild(n);
590 delete Ext.elCache[n.id];
595 * <p>Returns true if the passed value is empty.</p>
596 * <p>The value is deemed to be empty if it is<div class="mdetail-params"><ul>
599 * <li>an empty array</li>
600 * <li>a zero length string (Unless the <tt>allowBlank</tt> parameter is <tt>true</tt>)</li>
602 * @param {Mixed} value The value to test
603 * @param {Boolean} allowBlank (optional) true to allow empty strings (defaults to false)
606 isEmpty : function(v, allowBlank){
607 return v === null || v === undefined || ((Ext.isArray(v) && !v.length)) || (!allowBlank ? v === '' : false);
611 * Returns true if the passed value is a JavaScript array, otherwise false.
612 * @param {Mixed} value The value to test
615 isArray : function(v){
616 return toString.apply(v) === '[object Array]';
620 * Returns true if the passed object is a JavaScript date object, otherwise false.
621 * @param {Object} object The object to test
624 isDate : function(v){
625 return toString.apply(v) === '[object Date]';
629 * Returns true if the passed value is a JavaScript Object, otherwise false.
630 * @param {Mixed} value The value to test
633 isObject : function(v){
634 return !!v && Object.prototype.toString.call(v) === '[object Object]';
638 * Returns true if the passed value is a JavaScript 'primitive', a string, number or boolean.
639 * @param {Mixed} value The value to test
642 isPrimitive : function(v){
643 return Ext.isString(v) || Ext.isNumber(v) || Ext.isBoolean(v);
647 * Returns true if the passed value is a JavaScript Function, otherwise false.
648 * @param {Mixed} value The value to test
651 isFunction : function(v){
652 return toString.apply(v) === '[object Function]';
656 * Returns true if the passed value is a number. Returns false for non-finite numbers.
657 * @param {Mixed} value The value to test
660 isNumber : function(v){
661 return typeof v === 'number' && isFinite(v);
665 * Returns true if the passed value is a string.
666 * @param {Mixed} value The value to test
669 isString : function(v){
670 return typeof v === 'string';
674 * Returns true if the passed value is a boolean.
675 * @param {Mixed} value The value to test
678 isBoolean : function(v){
679 return typeof v === 'boolean';
683 * Returns true if the passed value is an HTMLElement
684 * @param {Mixed} value The value to test
687 isElement : function(v) {
688 return v ? !!v.tagName : false;
692 * Returns true if the passed value is not undefined.
693 * @param {Mixed} value The value to test
696 isDefined : function(v){
697 return typeof v !== 'undefined';
701 * True if the detected browser is Opera.
706 * True if the detected browser uses WebKit.
711 * True if the detected browser is Chrome.
716 * True if the detected browser is Safari.
721 * True if the detected browser is Safari 3.x.
724 isSafari3 : isSafari3,
726 * True if the detected browser is Safari 4.x.
729 isSafari4 : isSafari4,
731 * True if the detected browser is Safari 2.x.
734 isSafari2 : isSafari2,
736 * True if the detected browser is Internet Explorer.
741 * True if the detected browser is Internet Explorer 6.x.
746 * True if the detected browser is Internet Explorer 7.x.
751 * True if the detected browser is Internet Explorer 8.x.
756 * True if the detected browser uses the Gecko layout engine (e.g. Mozilla, Firefox).
761 * True if the detected browser uses a pre-Gecko 1.9 layout engine (e.g. Firefox 2.x).
766 * True if the detected browser uses a Gecko 1.9+ layout engine (e.g. Firefox 3.x).
771 * True if the detected browser is Internet Explorer running in non-strict mode.
774 isBorderBox : isBorderBox,
776 * True if the detected platform is Linux.
781 * True if the detected platform is Windows.
784 isWindows : isWindows,
786 * True if the detected platform is Mac OS.
791 * True if the detected platform is Adobe Air.
798 * Creates namespaces to be used for scoping variables and classes so that they are not global.
799 * Specifying the last node of a namespace implicitly creates all other nodes. Usage:
801 Ext.namespace('Company', 'Company.data');
802 Ext.namespace('Company.data'); // equivalent and preferable to above syntax
803 Company.Widget = function() { ... }
804 Company.data.CustomStore = function(config) { ... }
806 * @param {String} namespace1
807 * @param {String} namespace2
808 * @param {String} etc
809 * @return {Object} The namespace object. (If multiple arguments are passed, this will be the last namespace created)
812 Ext.ns = Ext.namespace;
815 Ext.ns("Ext.util", "Ext.lib", "Ext.data");
821 * These functions are available on every Function object (any JavaScript function).
823 Ext.apply(Function.prototype, {
825 * Creates an interceptor function. The passed function is called before the original one. If it returns false,
826 * the original one is not called. The resulting function returns the results of the original function.
827 * The passed function is called with the parameters of the original function. Example usage:
829 var sayHi = function(name){
830 alert('Hi, ' + name);
833 sayHi('Fred'); // alerts "Hi, Fred"
835 // create a new function that validates input without
836 // directly modifying the original function:
837 var sayHiToFriend = sayHi.createInterceptor(function(name){
838 return name == 'Brian';
841 sayHiToFriend('Fred'); // no alert
842 sayHiToFriend('Brian'); // alerts "Hi, Brian"
844 * @param {Function} fcn The function to call before the original
845 * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the passed function is executed.
846 * <b>If omitted, defaults to the scope in which the original function is called or the browser window.</b>
847 * @return {Function} The new function
849 createInterceptor : function(fcn, scope){
851 return !Ext.isFunction(fcn) ?
858 return (fcn.apply(scope || me || window, args) !== false) ?
859 method.apply(me || window, args) :
865 * Creates a callback that passes arguments[0], arguments[1], arguments[2], ...
866 * Call directly on any function. Example: <code>myFunction.createCallback(arg1, arg2)</code>
867 * Will create a function that is bound to those 2 args. <b>If a specific scope is required in the
868 * callback, use {@link #createDelegate} instead.</b> The function returned by createCallback always
869 * executes in the window scope.
870 * <p>This method is required when you want to pass arguments to a callback function. If no arguments
871 * are needed, you can simply pass a reference to the function as a callback (e.g., callback: myFn).
872 * However, if you tried to pass a function with arguments (e.g., callback: myFn(arg1, arg2)) the function
873 * would simply execute immediately when the code is parsed. Example usage:
875 var sayHi = function(name){
876 alert('Hi, ' + name);
879 // clicking the button alerts "Hi, Fred"
882 renderTo: Ext.getBody(),
883 handler: sayHi.createCallback('Fred')
886 * @return {Function} The new function
888 createCallback : function(/*args...*/){
889 // make args available, in function below
890 var args = arguments,
893 return method.apply(window, args);
898 * Creates a delegate (callback) that sets the scope to obj.
899 * Call directly on any function. Example: <code>this.myFunction.createDelegate(this, [arg1, arg2])</code>
900 * Will create a function that is automatically scoped to obj so that the <tt>this</tt> variable inside the
901 * callback points to obj. Example usage:
903 var sayHi = function(name){
904 // Note this use of "this.text" here. This function expects to
905 // execute within a scope that contains a text property. In this
906 // example, the "this" variable is pointing to the btn object that
907 // was passed in createDelegate below.
908 alert('Hi, ' + name + '. You clicked the "' + this.text + '" button.');
911 var btn = new Ext.Button({
913 renderTo: Ext.getBody()
916 // This callback will execute in the scope of the
917 // button instance. Clicking the button alerts
918 // "Hi, Fred. You clicked the "Say Hi" button."
919 btn.on('click', sayHi.createDelegate(btn, ['Fred']));
921 * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the function is executed.
922 * <b>If omitted, defaults to the browser window.</b>
923 * @param {Array} args (optional) Overrides arguments for the call. (Defaults to the arguments passed by the caller)
924 * @param {Boolean/Number} appendArgs (optional) if True args are appended to call args instead of overriding,
925 * if a number the args are inserted at the specified position
926 * @return {Function} The new function
928 createDelegate : function(obj, args, appendArgs){
931 var callArgs = args || arguments;
932 if (appendArgs === true){
933 callArgs = Array.prototype.slice.call(arguments, 0);
934 callArgs = callArgs.concat(args);
935 }else if (Ext.isNumber(appendArgs)){
936 callArgs = Array.prototype.slice.call(arguments, 0); // copy arguments first
937 var applyArgs = [appendArgs, 0].concat(args); // create method call params
938 Array.prototype.splice.apply(callArgs, applyArgs); // splice them in
940 return method.apply(obj || window, callArgs);
945 * Calls this function after the number of millseconds specified, optionally in a specific scope. Example usage:
947 var sayHi = function(name){
948 alert('Hi, ' + name);
951 // executes immediately:
954 // executes after 2 seconds:
955 sayHi.defer(2000, this, ['Fred']);
957 // this syntax is sometimes useful for deferring
958 // execution of an anonymous function:
963 * @param {Number} millis The number of milliseconds for the setTimeout call (if less than or equal to 0 the function is executed immediately)
964 * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the function is executed.
965 * <b>If omitted, defaults to the browser window.</b>
966 * @param {Array} args (optional) Overrides arguments for the call. (Defaults to the arguments passed by the caller)
967 * @param {Boolean/Number} appendArgs (optional) if True args are appended to call args instead of overriding,
968 * if a number the args are inserted at the specified position
969 * @return {Number} The timeout id that can be used with clearTimeout
971 defer : function(millis, obj, args, appendArgs){
972 var fn = this.createDelegate(obj, args, appendArgs);
974 return setTimeout(fn, millis);
983 * These functions are available on every String object.
985 Ext.applyIf(String, {
987 * Allows you to define a tokenized string and pass an arbitrary number of arguments to replace the tokens. Each
988 * token must be unique, and must increment in the format {0}, {1}, etc. Example usage:
990 var cls = 'my-class', text = 'Some text';
991 var s = String.format('<div class="{0}">{1}</div>', cls, text);
992 // s now contains the string: '<div class="my-class">Some text</div>'
994 * @param {String} string The tokenized string to be formatted
995 * @param {String} value1 The value to replace token {0}
996 * @param {String} value2 Etc...
997 * @return {String} The formatted string
1000 format : function(format){
1001 var args = Ext.toArray(arguments, 1);
1002 return format.replace(/\{(\d+)\}/g, function(m, i){
1011 Ext.applyIf(Array.prototype, {
1013 * Checks whether or not the specified object exists in the array.
1014 * @param {Object} o The object to check for
1015 * @param {Number} from (Optional) The index at which to begin the search
1016 * @return {Number} The index of o in the array (or -1 if it is not found)
1018 indexOf : function(o, from){
1019 var len = this.length;
1021 from += (from < 0) ? len : 0;
1022 for (; from < len; ++from){
1023 if(this[from] === o){
1031 * Removes the specified object from the array. If the object is not found nothing happens.
1032 * @param {Object} o The object to remove
1033 * @return {Array} this array
1035 remove : function(o){
1036 var index = this.indexOf(o);
1038 this.splice(index, 1);