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18 <pre class="prettyprint lang-js"><span id='Ext'>/**
24 objectPrototype = Object.prototype,
25 toString = objectPrototype.toString,
27 enumerablesTest = { toString: 1 },
30 if (typeof Ext === 'undefined') {
36 for (i in enumerablesTest) {
41 enumerables = ['hasOwnProperty', 'valueOf', 'isPrototypeOf', 'propertyIsEnumerable',
42 'toLocaleString', 'toString', 'constructor'];
45 <span id='Ext-property-enumerables'> /**
46 </span> * An array containing extra enumerables for old browsers
47 * @property {String[]}
49 Ext.enumerables = enumerables;
51 <span id='Ext-method-apply'> /**
52 </span> * Copies all the properties of config to the specified object.
53 * Note that if recursive merging and cloning without referencing the original objects / arrays is needed, use
54 * {@link Ext.Object#merge} instead.
55 * @param {Object} object The receiver of the properties
56 * @param {Object} config The source of the properties
57 * @param {Object} defaults A different object that will also be applied for default values
58 * @return {Object} returns obj
60 Ext.apply = function(object, config, defaults) {
62 Ext.apply(object, defaults);
65 if (object && config && typeof config === 'object') {
69 object[i] = config[i];
73 for (j = enumerables.length; j--;) {
75 if (config.hasOwnProperty(k)) {
76 object[k] = config[k];
85 Ext.buildSettings = Ext.apply({
88 }, Ext.buildSettings || {});
91 <span id='Ext-method-emptyFn'> /**
92 </span> * A reusable empty function
94 emptyFn: function() {},
96 baseCSSPrefix: Ext.buildSettings.baseCSSPrefix,
98 <span id='Ext-method-applyIf'> /**
99 </span> * Copies all the properties of config to object if they don't already exist.
100 * @param {Object} object The receiver of the properties
101 * @param {Object} config The source of the properties
102 * @return {Object} returns obj
104 applyIf: function(object, config) {
108 for (property in config) {
109 if (object[property] === undefined) {
110 object[property] = config[property];
118 <span id='Ext-method-iterate'> /**
119 </span> * Iterates either an array or an object. This method delegates to
120 * {@link Ext.Array#each Ext.Array.each} if the given value is iterable, and {@link Ext.Object#each Ext.Object.each} otherwise.
122 * @param {Object/Array} object The object or array to be iterated.
123 * @param {Function} fn The function to be called for each iteration. See and {@link Ext.Array#each Ext.Array.each} and
124 * {@link Ext.Object#each Ext.Object.each} for detailed lists of arguments passed to this function depending on the given object
125 * type that is being iterated.
126 * @param {Object} scope (Optional) The scope (`this` reference) in which the specified function is executed.
127 * Defaults to the object being iterated itself.
130 iterate: function(object, fn, scope) {
131 if (Ext.isEmpty(object)) {
135 if (scope === undefined) {
139 if (Ext.isIterable(object)) {
140 Ext.Array.each.call(Ext.Array, object, fn, scope);
143 Ext.Object.each.call(Ext.Object, object, fn, scope);
150 <span id='Ext-method-extend'> /**
151 </span> * This method deprecated. Use {@link Ext#define Ext.define} instead.
153 * @param {Function} superclass
154 * @param {Object} overrides
155 * @return {Function} The subclass constructor from the <tt>overrides</tt> parameter, or a generated one if not provided.
156 * @deprecated 4.0.0 Use {@link Ext#define Ext.define} instead
160 var objectConstructor = objectPrototype.constructor,
161 inlineOverrides = function(o) {
163 if (!o.hasOwnProperty(m)) {
170 return function(subclass, superclass, overrides) {
171 // First we check if the user passed in just the superClass with overrides
172 if (Ext.isObject(superclass)) {
173 overrides = superclass;
174 superclass = subclass;
175 subclass = overrides.constructor !== objectConstructor ? overrides.constructor : function() {
176 superclass.apply(this, arguments);
184 sourceMethod: 'extend',
185 msg: 'Attempting to extend from a class which has not been loaded on the page.'
190 // We create a new temporary class
191 var F = function() {},
192 subclassProto, superclassProto = superclass.prototype;
194 F.prototype = superclassProto;
195 subclassProto = subclass.prototype = new F();
196 subclassProto.constructor = subclass;
197 subclass.superclass = superclassProto;
199 if (superclassProto.constructor === objectConstructor) {
200 superclassProto.constructor = superclass;
203 subclass.override = function(overrides) {
204 Ext.override(subclass, overrides);
207 subclassProto.override = inlineOverrides;
208 subclassProto.proto = subclassProto;
210 subclass.override(overrides);
211 subclass.extend = function(o) {
212 return Ext.extend(subclass, o);
219 <span id='Ext-method-override'> /**
220 </span> * Proxy to {@link Ext.Base#override}. Please refer {@link Ext.Base#override} for further details.
222 Ext.define('My.cool.Class', {
228 Ext.override(My.cool.Class, {
230 alert('About to say...');
232 this.callOverridden();
236 var cool = new My.cool.Class();
237 cool.sayHi(); // alerts 'About to say...'
240 * Please note that `this.callOverridden()` only works if the class was previously
241 * created with {@link Ext#define)
243 * @param {Object} cls The class to override
244 * @param {Object} overrides The list of functions to add to origClass. This should be specified as an object literal
245 * containing one or more methods.
249 override: function(cls, overrides) {
250 if (cls.prototype.$className) {
251 return cls.override(overrides);
254 Ext.apply(cls.prototype, overrides);
259 // A full set of static methods to do type checking
262 <span id='Ext-method-valueFrom'> /**
263 </span> * Returns the given value itself if it's not empty, as described in {@link Ext#isEmpty}; returns the default
264 * value (second argument) otherwise.
266 * @param {Object} value The value to test
267 * @param {Object} defaultValue The value to return if the original value is empty
268 * @param {Boolean} allowBlank (optional) true to allow zero length strings to qualify as non-empty (defaults to false)
269 * @return {Object} value, if non-empty, else defaultValue
271 valueFrom: function(value, defaultValue, allowBlank){
272 return Ext.isEmpty(value, allowBlank) ? defaultValue : value;
275 <span id='Ext-method-typeOf'> /**
276 </span> * Returns the type of the given variable in string format. List of possible values are:
278 * - `undefined`: If the given value is `undefined`
279 * - `null`: If the given value is `null`
280 * - `string`: If the given value is a string
281 * - `number`: If the given value is a number
282 * - `boolean`: If the given value is a boolean value
283 * - `date`: If the given value is a `Date` object
284 * - `function`: If the given value is a function reference
285 * - `object`: If the given value is an object
286 * - `array`: If the given value is an array
287 * - `regexp`: If the given value is a regular expression
288 * - `element`: If the given value is a DOM Element
289 * - `textnode`: If the given value is a DOM text node and contains something other than whitespace
290 * - `whitespace`: If the given value is a DOM text node and contains only whitespace
292 * @param {Object} value
296 typeOf: function(value) {
297 if (value === null) {
301 var type = typeof value;
303 if (type === 'undefined' || type === 'string' || type === 'number' || type === 'boolean') {
307 var typeToString = toString.call(value);
309 switch(typeToString) {
310 case '[object Array]':
312 case '[object Date]':
314 case '[object Boolean]':
316 case '[object Number]':
318 case '[object RegExp]':
322 if (type === 'function') {
326 if (type === 'object') {
327 if (value.nodeType !== undefined) {
328 if (value.nodeType === 3) {
329 return (/\S/).test(value.nodeValue) ? 'textnode' : 'whitespace';
339 //<debug error>
342 sourceMethod: 'typeOf',
343 msg: 'Failed to determine the type of the specified value "' + value + '". This is most likely a bug.'
348 <span id='Ext-method-isEmpty'> /**
349 </span> * Returns true if the passed value is empty, false otherwise. The value is deemed to be empty if it is either:
353 * - a zero-length array
354 * - a zero-length string (Unless the `allowEmptyString` parameter is set to `true`)
356 * @param {Object} value The value to test
357 * @param {Boolean} allowEmptyString (optional) true to allow empty strings (defaults to false)
361 isEmpty: function(value, allowEmptyString) {
362 return (value === null) || (value === undefined) || (!allowEmptyString ? value === '' : false) || (Ext.isArray(value) && value.length === 0);
365 <span id='Ext-method-isArray'> /**
366 </span> * Returns true if the passed value is a JavaScript Array, false otherwise.
368 * @param {Object} target The target to test
372 isArray: ('isArray' in Array) ? Array.isArray : function(value) {
373 return toString.call(value) === '[object Array]';
376 <span id='Ext-method-isDate'> /**
377 </span> * Returns true if the passed value is a JavaScript Date object, false otherwise.
378 * @param {Object} object The object to test
381 isDate: function(value) {
382 return toString.call(value) === '[object Date]';
385 <span id='Ext-method-isObject'> /**
386 </span> * Returns true if the passed value is a JavaScript Object, false otherwise.
387 * @param {Object} value The value to test
391 isObject: (toString.call(null) === '[object Object]') ?
393 // check ownerDocument here as well to exclude DOM nodes
394 return value !== null && value !== undefined && toString.call(value) === '[object Object]' && value.ownerDocument === undefined;
397 return toString.call(value) === '[object Object]';
400 <span id='Ext-method-isPrimitive'> /**
401 </span> * Returns true if the passed value is a JavaScript 'primitive', a string, number or boolean.
402 * @param {Object} value The value to test
405 isPrimitive: function(value) {
406 var type = typeof value;
408 return type === 'string' || type === 'number' || type === 'boolean';
411 <span id='Ext-method-isFunction'> /**
412 </span> * Returns true if the passed value is a JavaScript Function, false otherwise.
413 * @param {Object} value The value to test
418 // Safari 3.x and 4.x returns 'function' for typeof <NodeList>, hence we need to fall back to using
419 // Object.prorotype.toString (slower)
420 (typeof document !== 'undefined' && typeof document.getElementsByTagName('body') === 'function') ? function(value) {
421 return toString.call(value) === '[object Function]';
422 } : function(value) {
423 return typeof value === 'function';
426 <span id='Ext-method-isNumber'> /**
427 </span> * Returns true if the passed value is a number. Returns false for non-finite numbers.
428 * @param {Object} value The value to test
431 isNumber: function(value) {
432 return typeof value === 'number' && isFinite(value);
435 <span id='Ext-method-isNumeric'> /**
436 </span> * Validates that a value is numeric.
437 * @param {Object} value Examples: 1, '1', '2.34'
438 * @return {Boolean} True if numeric, false otherwise
440 isNumeric: function(value) {
441 return !isNaN(parseFloat(value)) && isFinite(value);
444 <span id='Ext-method-isString'> /**
445 </span> * Returns true if the passed value is a string.
446 * @param {Object} value The value to test
449 isString: function(value) {
450 return typeof value === 'string';
453 <span id='Ext-method-isBoolean'> /**
454 </span> * Returns true if the passed value is a boolean.
456 * @param {Object} value The value to test
459 isBoolean: function(value) {
460 return typeof value === 'boolean';
463 <span id='Ext-method-isElement'> /**
464 </span> * Returns true if the passed value is an HTMLElement
465 * @param {Object} value The value to test
468 isElement: function(value) {
469 return value ? value.nodeType === 1 : false;
472 <span id='Ext-method-isTextNode'> /**
473 </span> * Returns true if the passed value is a TextNode
474 * @param {Object} value The value to test
477 isTextNode: function(value) {
478 return value ? value.nodeName === "#text" : false;
481 <span id='Ext-method-isDefined'> /**
482 </span> * Returns true if the passed value is defined.
483 * @param {Object} value The value to test
486 isDefined: function(value) {
487 return typeof value !== 'undefined';
490 <span id='Ext-method-isIterable'> /**
491 </span> * Returns true if the passed value is iterable, false otherwise
492 * @param {Object} value The value to test
495 isIterable: function(value) {
496 return (value && typeof value !== 'string') ? value.length !== undefined : false;
502 <span id='Ext-method-clone'> /**
503 </span> * Clone almost any type of variable including array, object, DOM nodes and Date without keeping the old reference
504 * @param {Object} item The variable to clone
505 * @return {Object} clone
507 clone: function(item) {
508 if (item === null || item === undefined) {
513 // TODO proxy this to Ext.Element.clone to handle automatic id attribute changing
515 if (item.nodeType && item.cloneNode) {
516 return item.cloneNode(true);
519 var type = toString.call(item);
522 if (type === '[object Date]') {
523 return new Date(item.getTime());
526 var i, j, k, clone, key;
529 if (type === '[object Array]') {
535 clone[i] = Ext.clone(item[i]);
539 else if (type === '[object Object]' && item.constructor === Object) {
543 clone[key] = Ext.clone(item[key]);
547 for (j = enumerables.length; j--;) {
554 return clone || item;
557 <span id='Ext-method-getUniqueGlobalNamespace'> /**
559 * Generate a unique reference of Ext in the global scope, useful for sandboxing
561 getUniqueGlobalNamespace: function() {
562 var uniqueGlobalNamespace = this.uniqueGlobalNamespace;
564 if (uniqueGlobalNamespace === undefined) {
568 uniqueGlobalNamespace = 'ExtBox' + (++i);
569 } while (Ext.global[uniqueGlobalNamespace] !== undefined);
571 Ext.global[uniqueGlobalNamespace] = Ext;
572 this.uniqueGlobalNamespace = uniqueGlobalNamespace;
575 return uniqueGlobalNamespace;
578 <span id='Ext-method-functionFactory'> /**
581 functionFactory: function() {
582 var args = Array.prototype.slice.call(arguments);
584 if (args.length > 0) {
585 args[args.length - 1] = 'var Ext=window.' + this.getUniqueGlobalNamespace() + ';' +
586 args[args.length - 1];
589 return Function.prototype.constructor.apply(Function.prototype, args);
593 <span id='Ext-method-type'> /**
594 </span> * Old alias to {@link Ext#typeOf}
595 * @deprecated 4.0.0 Use {@link Ext#typeOf} instead
599 Ext.type = Ext.typeOf;