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 * Removes a DOM node from the document.
553 * <p>Removes this element from the document, removes all DOM event listeners, and deletes the cache reference.
554 * All DOM event listeners are removed from this element. If {@link Ext#enableNestedListenerRemoval} is
555 * <code>true</code>, then DOM event listeners are also removed from all child nodes. The body node
556 * will be ignored if passed in.</p>
557 * @param {HTMLElement} node The node to remove
559 removeNode : isIE && !isIE8 ? function(){
562 if(n && n.tagName != 'BODY'){
563 (Ext.enableNestedListenerRemoval) ? Ext.EventManager.purgeElement(n, true) : Ext.EventManager.removeAll(n);
564 d = d || DOC.createElement('div');
567 delete Ext.elCache[n.id];
571 if(n && n.parentNode && n.tagName != 'BODY'){
572 (Ext.enableNestedListenerRemoval) ? Ext.EventManager.purgeElement(n, true) : Ext.EventManager.removeAll(n);
573 n.parentNode.removeChild(n);
574 delete Ext.elCache[n.id];
579 * <p>Returns true if the passed value is empty.</p>
580 * <p>The value is deemed to be empty if it is<div class="mdetail-params"><ul>
583 * <li>an empty array</li>
584 * <li>a zero length string (Unless the <tt>allowBlank</tt> parameter is <tt>true</tt>)</li>
586 * @param {Mixed} value The value to test
587 * @param {Boolean} allowBlank (optional) true to allow empty strings (defaults to false)
590 isEmpty : function(v, allowBlank){
591 return v === null || v === undefined || ((Ext.isArray(v) && !v.length)) || (!allowBlank ? v === '' : false);
595 * Returns true if the passed value is a JavaScript array, otherwise false.
596 * @param {Mixed} value The value to test
599 isArray : function(v){
600 return toString.apply(v) === '[object Array]';
604 * Returns true if the passed object is a JavaScript date object, otherwise false.
605 * @param {Object} object The object to test
608 isDate : function(v){
609 return toString.apply(v) === '[object Date]';
613 * Returns true if the passed value is a JavaScript Object, otherwise false.
614 * @param {Mixed} value The value to test
617 isObject : function(v){
618 return !!v && Object.prototype.toString.call(v) === '[object Object]';
622 * Returns true if the passed value is a JavaScript 'primitive', a string, number or boolean.
623 * @param {Mixed} value The value to test
626 isPrimitive : function(v){
627 return Ext.isString(v) || Ext.isNumber(v) || Ext.isBoolean(v);
631 * Returns true if the passed value is a JavaScript Function, otherwise false.
632 * @param {Mixed} value The value to test
635 isFunction : function(v){
636 return toString.apply(v) === '[object Function]';
640 * Returns true if the passed value is a number. Returns false for non-finite numbers.
641 * @param {Mixed} value The value to test
644 isNumber : function(v){
645 return typeof v === 'number' && isFinite(v);
649 * Returns true if the passed value is a string.
650 * @param {Mixed} value The value to test
653 isString : function(v){
654 return typeof v === 'string';
658 * Returns true if the passed value is a boolean.
659 * @param {Mixed} value The value to test
662 isBoolean : function(v){
663 return typeof v === 'boolean';
667 * Returns true if the passed value is an HTMLElement
668 * @param {Mixed} value The value to test
671 isElement : function(v) {
672 return v ? !!v.tagName : false;
676 * Returns true if the passed value is not undefined.
677 * @param {Mixed} value The value to test
680 isDefined : function(v){
681 return typeof v !== 'undefined';
685 * True if the detected browser is Opera.
690 * True if the detected browser uses WebKit.
695 * True if the detected browser is Chrome.
700 * True if the detected browser is Safari.
705 * True if the detected browser is Safari 3.x.
708 isSafari3 : isSafari3,
710 * True if the detected browser is Safari 4.x.
713 isSafari4 : isSafari4,
715 * True if the detected browser is Safari 2.x.
718 isSafari2 : isSafari2,
720 * True if the detected browser is Internet Explorer.
725 * True if the detected browser is Internet Explorer 6.x.
730 * True if the detected browser is Internet Explorer 7.x.
735 * True if the detected browser is Internet Explorer 8.x.
740 * True if the detected browser uses the Gecko layout engine (e.g. Mozilla, Firefox).
745 * True if the detected browser uses a pre-Gecko 1.9 layout engine (e.g. Firefox 2.x).
750 * True if the detected browser uses a Gecko 1.9+ layout engine (e.g. Firefox 3.x).
755 * True if the detected browser is Internet Explorer running in non-strict mode.
758 isBorderBox : isBorderBox,
760 * True if the detected platform is Linux.
765 * True if the detected platform is Windows.
768 isWindows : isWindows,
770 * True if the detected platform is Mac OS.
775 * True if the detected platform is Adobe Air.
782 * Creates namespaces to be used for scoping variables and classes so that they are not global.
783 * Specifying the last node of a namespace implicitly creates all other nodes. Usage:
785 Ext.namespace('Company', 'Company.data');
786 Ext.namespace('Company.data'); // equivalent and preferable to above syntax
787 Company.Widget = function() { ... }
788 Company.data.CustomStore = function(config) { ... }
790 * @param {String} namespace1
791 * @param {String} namespace2
792 * @param {String} etc
793 * @return {Object} The namespace object. (If multiple arguments are passed, this will be the last namespace created)
796 Ext.ns = Ext.namespace;
799 Ext.ns("Ext.util", "Ext.lib", "Ext.data");
805 * These functions are available on every Function object (any JavaScript function).
807 Ext.apply(Function.prototype, {
809 * Creates an interceptor function. The passed function is called before the original one. If it returns false,
810 * the original one is not called. The resulting function returns the results of the original function.
811 * The passed function is called with the parameters of the original function. Example usage:
813 var sayHi = function(name){
814 alert('Hi, ' + name);
817 sayHi('Fred'); // alerts "Hi, Fred"
819 // create a new function that validates input without
820 // directly modifying the original function:
821 var sayHiToFriend = sayHi.createInterceptor(function(name){
822 return name == 'Brian';
825 sayHiToFriend('Fred'); // no alert
826 sayHiToFriend('Brian'); // alerts "Hi, Brian"
828 * @param {Function} fcn The function to call before the original
829 * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the passed function is executed.
830 * <b>If omitted, defaults to the scope in which the original function is called or the browser window.</b>
831 * @return {Function} The new function
833 createInterceptor : function(fcn, scope){
835 return !Ext.isFunction(fcn) ?
842 return (fcn.apply(scope || me || window, args) !== false) ?
843 method.apply(me || window, args) :
849 * Creates a callback that passes arguments[0], arguments[1], arguments[2], ...
850 * Call directly on any function. Example: <code>myFunction.createCallback(arg1, arg2)</code>
851 * Will create a function that is bound to those 2 args. <b>If a specific scope is required in the
852 * callback, use {@link #createDelegate} instead.</b> The function returned by createCallback always
853 * executes in the window scope.
854 * <p>This method is required when you want to pass arguments to a callback function. If no arguments
855 * are needed, you can simply pass a reference to the function as a callback (e.g., callback: myFn).
856 * However, if you tried to pass a function with arguments (e.g., callback: myFn(arg1, arg2)) the function
857 * would simply execute immediately when the code is parsed. Example usage:
859 var sayHi = function(name){
860 alert('Hi, ' + name);
863 // clicking the button alerts "Hi, Fred"
866 renderTo: Ext.getBody(),
867 handler: sayHi.createCallback('Fred')
870 * @return {Function} The new function
872 createCallback : function(/*args...*/){
873 // make args available, in function below
874 var args = arguments,
877 return method.apply(window, args);
882 * Creates a delegate (callback) that sets the scope to obj.
883 * Call directly on any function. Example: <code>this.myFunction.createDelegate(this, [arg1, arg2])</code>
884 * Will create a function that is automatically scoped to obj so that the <tt>this</tt> variable inside the
885 * callback points to obj. Example usage:
887 var sayHi = function(name){
888 // Note this use of "this.text" here. This function expects to
889 // execute within a scope that contains a text property. In this
890 // example, the "this" variable is pointing to the btn object that
891 // was passed in createDelegate below.
892 alert('Hi, ' + name + '. You clicked the "' + this.text + '" button.');
895 var btn = new Ext.Button({
897 renderTo: Ext.getBody()
900 // This callback will execute in the scope of the
901 // button instance. Clicking the button alerts
902 // "Hi, Fred. You clicked the "Say Hi" button."
903 btn.on('click', sayHi.createDelegate(btn, ['Fred']));
905 * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the function is executed.
906 * <b>If omitted, defaults to the browser window.</b>
907 * @param {Array} args (optional) Overrides arguments for the call. (Defaults to the arguments passed by the caller)
908 * @param {Boolean/Number} appendArgs (optional) if True args are appended to call args instead of overriding,
909 * if a number the args are inserted at the specified position
910 * @return {Function} The new function
912 createDelegate : function(obj, args, appendArgs){
915 var callArgs = args || arguments;
916 if (appendArgs === true){
917 callArgs = Array.prototype.slice.call(arguments, 0);
918 callArgs = callArgs.concat(args);
919 }else if (Ext.isNumber(appendArgs)){
920 callArgs = Array.prototype.slice.call(arguments, 0); // copy arguments first
921 var applyArgs = [appendArgs, 0].concat(args); // create method call params
922 Array.prototype.splice.apply(callArgs, applyArgs); // splice them in
924 return method.apply(obj || window, callArgs);
929 * Calls this function after the number of millseconds specified, optionally in a specific scope. Example usage:
931 var sayHi = function(name){
932 alert('Hi, ' + name);
935 // executes immediately:
938 // executes after 2 seconds:
939 sayHi.defer(2000, this, ['Fred']);
941 // this syntax is sometimes useful for deferring
942 // execution of an anonymous function:
947 * @param {Number} millis The number of milliseconds for the setTimeout call (if less than or equal to 0 the function is executed immediately)
948 * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the function is executed.
949 * <b>If omitted, defaults to the browser window.</b>
950 * @param {Array} args (optional) Overrides arguments for the call. (Defaults to the arguments passed by the caller)
951 * @param {Boolean/Number} appendArgs (optional) if True args are appended to call args instead of overriding,
952 * if a number the args are inserted at the specified position
953 * @return {Number} The timeout id that can be used with clearTimeout
955 defer : function(millis, obj, args, appendArgs){
956 var fn = this.createDelegate(obj, args, appendArgs);
958 return setTimeout(fn, millis);
967 * These functions are available on every String object.
969 Ext.applyIf(String, {
971 * Allows you to define a tokenized string and pass an arbitrary number of arguments to replace the tokens. Each
972 * token must be unique, and must increment in the format {0}, {1}, etc. Example usage:
974 var cls = 'my-class', text = 'Some text';
975 var s = String.format('<div class="{0}">{1}</div>', cls, text);
976 // s now contains the string: '<div class="my-class">Some text</div>'
978 * @param {String} string The tokenized string to be formatted
979 * @param {String} value1 The value to replace token {0}
980 * @param {String} value2 Etc...
981 * @return {String} The formatted string
984 format : function(format){
985 var args = Ext.toArray(arguments, 1);
986 return format.replace(/\{(\d+)\}/g, function(m, i){
995 Ext.applyIf(Array.prototype, {
997 * Checks whether or not the specified object exists in the array.
998 * @param {Object} o The object to check for
999 * @param {Number} from (Optional) The index at which to begin the search
1000 * @return {Number} The index of o in the array (or -1 if it is not found)
1002 indexOf : function(o, from){
1003 var len = this.length;
1005 from += (from < 0) ? len : 0;
1006 for (; from < len; ++from){
1007 if(this[from] === o){
1015 * Removes the specified object from the array. If the object is not found nothing happens.
1016 * @param {Object} o The object to remove
1017 * @return {Array} this array
1019 remove : function(o){
1020 var index = this.indexOf(o);
1022 this.splice(index, 1);