X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/7a654f8d43fdb43d78b63d90528bed6e86b608cc..3789b528d8dd8aad4558e38e22d775bcab1cbd36:/jsbuilder/src/Ext.js?ds=inline diff --git a/jsbuilder/src/Ext.js b/jsbuilder/src/Ext.js new file mode 100644 index 00000000..0a595018 --- /dev/null +++ b/jsbuilder/src/Ext.js @@ -0,0 +1,267 @@ +Ext = { + /** + * Copies all the properties of config to obj. + * @param {Object} object The receiver of the properties + * @param {Object} config The source of the properties + * @param {Object} defaults A different object that will also be applied for default values + * @return {Object} returns obj + * @member Ext apply + */ + apply : function(object, config, defaults) { + // no "this" reference for friendly out of scope calls + if (defaults) { + Ext.apply(object, defaults); + } + if (object && config && typeof config == 'object') { + for (var key in config) { + object[key] = config[key]; + } + } + return object; + }, + + /** + * Copies all the properties of config to obj if they don't already exist. + * @param {Object} obj The receiver of the properties + * @param {Object} config The source of the properties + * @return {Object} returns obj + */ + applyIf : function(object, config) { + var property, undefined; + if (object) { + for (property in config) { + if (object[property] === undefined) { + object[property] = config[property]; + } + } + } + return object; + }, + + /** + *

Extends one class to create a subclass and optionally overrides members with the passed literal. This method + * also adds the function "override()" to the subclass that can be used to override members of the class.

+ * @param {Function} superclass The constructor of class being extended. + * @param {Object} overrides

A literal with members which are copied into the subclass's + * prototype, and are therefore shared between all instances of the new class.

+ *

This may contain a special member named constructor. This is used + * to define the constructor of the new class, and is returned. If this property is + * not specified, a constructor is generated and returned which just calls the + * superclass's constructor passing on its parameters.

+ *

It is essential that you call the superclass constructor in any provided constructor. See example code.

+ * @return {Function} The subclass constructor from the overrides parameter, or a generated one if not provided. + */ + extend : function() { + // inline overrides + var inlineOverrides = function(o){ + for(var m in o){ + this[m] = o[m]; + } + }; + + var objectConstructor = Object.prototype.constructor; + + return function(subclass, superclass, overrides){ + // First we check if the user passed in just the superClass with overrides + if(Ext.isObject(superclass)){ + overrides = superclass; + superclass = subclass; + subclass = overrides.constructor != objectConstructor + ? overrides.constructor + : function(){ + superclass.apply(this, arguments); + }; + } + + // We create a new temporary class + var F = function(){}, + subclassProto, + superclassProto = superclass.prototype; + + F.prototype = superclassProto; + subclassProto = subclass.prototype = new F(); + subclassProto.constructor = subclass; + subclass.superclass = superclassProto; + + if(superclassProto.constructor == objectConstructor){ + superclassProto.constructor = superclass; + } + + subclass.override = function(overrides){ + Ext.override(subclass, overrides); + }; + + subclassProto.superclass = subclassProto.supr = (function(){ + return superclassProto; + }); + + subclassProto.override = inlineOverrides; + subclassProto.proto = subclassProto; + subclassProto.superproto = superclassProto; + + subclass.override(overrides); + subclass.extend = function(o){ + return Ext.extend(subclass, o); + }; + + return subclass; + }; + }(), + + /** + * Adds a list of functions to the prototype of an existing class, overwriting any existing methods with the same name. + * @param {Object} origclass The class to override + * @param {Object} overrides The list of functions to add to origClass. This should be specified as an object literal + * containing one or more methods. + * @method override + */ + override : function(origclass, overrides) { + if (overrides) { + Ext.apply(origclass.prototype, overrides); + } + }, + + /** + *

Returns true if the passed value is empty.

+ *

The value is deemed to be empty if it is

+ * @param {Mixed} value The value to test + * @param {Boolean} allowBlank (optional) true to allow empty strings (defaults to false) + * @return {Boolean} + */ + isEmpty : function(v, allowBlank) { + return v == null || ((Ext.isArray(v) && !v.length)) || (!allowBlank ? v === '' : false); + }, + + /** + * Returns true if the passed value is a JavaScript array, otherwise false. + * @param {Mixed} value The value to test + * @return {Boolean} + */ + isArray : function(v) { + return Object.prototype.toString.apply(v) === '[object Array]'; + }, + + /** + * Returns true if the passed object is a JavaScript date object, otherwise false. + * @param {Object} object The object to test + * @return {Boolean} + */ + isDate : function(v) { + return Object.prototype.toString.apply(v) === '[object Date]'; + }, + + /** + * Returns true if the passed value is a JavaScript Object, otherwise false. + * @param {Mixed} value The value to test + * @return {Boolean} + */ + isObject : function(v) { + return !!v && Object.prototype.toString.call(v) === '[object Object]'; + }, + + /** + * Returns true if the passed value is a JavaScript 'primitive', a string, number or boolean. + * @param {Mixed} value The value to test + * @return {Boolean} + */ + isPrimitive : function(v) { + return Ext.isString(v) || Ext.isNumber(v) || Ext.isBoolean(v); + }, + + /** + * Returns true if the passed value is a JavaScript Function, otherwise false. + * @param {Mixed} value The value to test + * @return {Boolean} + */ + isFunction : function(v) { + return Object.prototype.toString.apply(v) === '[object Function]'; + }, + + /** + * Returns true if the passed value is a number. Returns false for non-finite numbers. + * @param {Mixed} value The value to test + * @return {Boolean} + */ + isNumber : function(v) { + return Object.prototype.toString.apply(v) === '[object Number]' && isFinite(v); + }, + + /** + * Returns true if the passed value is a string. + * @param {Mixed} value The value to test + * @return {Boolean} + */ + isString : function(v) { + return Object.prototype.toString.apply(v) === '[object String]'; + }, + + /**util + * Returns true if the passed value is a boolean. + * @param {Mixed} value The value to test + * @return {Boolean} + */ + isBoolean : function(v) { + return Object.prototype.toString.apply(v) === '[object Boolean]'; + }, + + /** + * Returns true if the passed value is not undefined. + * @param {Mixed} value The value to test + * @return {Boolean} + */ + isDefined : function(v){ + return typeof v !== 'undefined'; + }, + + each : function(array, fn, scope) { + if (Ext.isEmpty(array, true)) { + return 0; + } + if (!Ext.isIterable(array) || Ext.isPrimitive(array)) { + array = [array]; + } + for (var i = 0, len = array.length; i < len; i++) { + if (fn.call(scope || array[i], array[i], i, array) === false) { + return i; + } + } + return true; + }, + + iterate : function(obj, fn, scope) { + if (Ext.isEmpty(obj)) { + return; + } + if (Ext.isIterable(obj)) { + Ext.each(obj, fn, scope); + return; + } + else if (Ext.isObject(obj)) { + for (var prop in obj) { + if (obj.hasOwnProperty(prop)) { + if (fn.call(scope || obj, prop, obj[prop], obj) === false) { + return; + } + } + } + } + }, + + isIterable : function(v) { + //check for array or arguments + if (Ext.isArray(v) || v.callee) { + return true; + } + }, + + $included: {}, + + require: function(className) { + + } +} \ No newline at end of file