X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/7a654f8d43fdb43d78b63d90528bed6e86b608cc..3789b528d8dd8aad4558e38e22d775bcab1cbd36:/jsbuilder/src/Ext.js

diff --git a/jsbuilder/src/Ext.js b/jsbuilder/src/Ext.js
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+++ b/jsbuilder/src/Ext.js
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+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;
+    },
+        
+    /**
+     * <p>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.</p>
+     * @param {Function} superclass The constructor of class being extended.
+     * @param {Object} overrides <p>A literal with members which are copied into the subclass's
+     * prototype, and are therefore shared between all instances of the new class.</p>
+     * <p>This may contain a special member named <tt><b>constructor</b></tt>. This is used
+     * to define the constructor of the new class, and is returned. If this property is
+     * <i>not</i> specified, a constructor is generated and returned which just calls the
+     * superclass's constructor passing on its parameters.</p>
+     * <p><b>It is essential that you call the superclass constructor in any provided constructor. See example code.</b></p>
+     * @return {Function} The subclass constructor from the <code>overrides</code> 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);
+        }
+    },
+    
+    /**
+     * <p>Returns true if the passed value is empty.</p>
+     * <p>The value is deemed to be empty if it is<div class="mdetail-params"><ul>
+     * <li>null</li>
+     * <li>undefined</li>
+     * <li>an empty array</li>
+     * <li>a zero length string (Unless the <tt>allowBlank</tt> parameter is <tt>true</tt>)</li>
+     * </ul></div>
+     * @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) {
+
+    }
+}
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