-Ext.addBehaviors({
- // add a listener for click on all anchors in element with id foo
- '#foo a@click' : function(e, t){
- // do something
- },
-
- // add the same listener to multiple selectors (separated by comma BEFORE the @)
- '#foo a, #bar span.some-class@mouseover' : function(){
- // do something
- }
-});
-- * This function also supports a 2-argument call in which the subclass's constructor is - * not passed as an argument. In this form, the parameters are as follows:
- *
superclass
- * overrides
- * - * 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.
- * For example, to create a subclass of the Ext GridPanel: - *
- MyGridPanel = Ext.extend(Ext.grid.GridPanel, {
- constructor: function(config) {
- // Your preprocessing here
- MyGridPanel.superclass.constructor.apply(this, arguments);
- // Your postprocessing here
- },
-
- yourMethod: function() {
- // etc.
- }
- });
-
-Ext.override(MyClass, {
- newMethod1: function(){
- // etc.
- },
- newMethod2: function(foo){
- // etc.
- }
-});
-
-Ext.namespace('Company', 'Company.data');
-Company.Widget = function() { ... }
-Company.data.CustomStore = function(config) { ... }
-myFunction.createCallback(arg1, arg2)
- * Will create a function that is bound to those 2 args. If a specific scope is required in the
- * callback, use {@link #createDelegate} instead. The function returned by createCallback always
- * executes in the window scope.
- * This method is required when you want to pass arguments to a callback function. If no arguments - * are needed, you can simply pass a reference to the function as a callback (e.g., callback: myFn). - * However, if you tried to pass a function with arguments (e.g., callback: myFn(arg1, arg2)) the function - * would simply execute immediately when the code is parsed. Example usage: - *
-var sayHi = function(name){
- alert('Hi, ' + name);
-}
-
-// clicking the button alerts "Hi, Fred"
-new Ext.Button({
- text: 'Say Hi',
- renderTo: Ext.getBody(),
- handler: sayHi.createCallback('Fred')
-});
-this.myFunction.createDelegate(this, [arg1, arg2])
- * Will create a function that is automatically scoped to obj so that the this variable inside the
- * callback points to obj. Example usage:
- *
-var sayHi = function(name){
- // Note this use of "this.text" here. This function expects to
- // execute within a scope that contains a text property. In this
- // example, the "this" variable is pointing to the btn object that
- // was passed in createDelegate below.
- alert('Hi, ' + name + '. You clicked the "' + this.text + '" button.');
-}
-
-var btn = new Ext.Button({
- text: 'Say Hi',
- renderTo: Ext.getBody()
-});
-
-// This callback will execute in the scope of the
-// button instance. Clicking the button alerts
-// "Hi, Fred. You clicked the "Say Hi" button."
-btn.on('click', sayHi.createDelegate(btn, ['Fred']));
-
-var sayHi = function(name){
- alert('Hi, ' + name);
-}
-
-// executes immediately:
-sayHi('Fred');
-
-// executes after 2 seconds:
-sayHi.defer(2000, this, ['Fred']);
-
-// this syntax is sometimes useful for deferring
-// execution of an anonymous function:
-(function(){
- alert('Anonymous');
-}).defer(100);
-
-var sayHi = function(name){
- alert('Hi, ' + name);
-}
-
-sayHi('Fred'); // alerts "Hi, Fred"
-
-var sayGoodbye = sayHi.createSequence(function(name){
- alert('Bye, ' + name);
-});
-
-sayGoodbye('Fred'); // both alerts show
-
-var sayHi = function(name){
- alert('Hi, ' + name);
-}
-
-sayHi('Fred'); // alerts "Hi, Fred"
-
-// create a new function that validates input without
-// directly modifying the original function:
-var sayHiToFriend = sayHi.createInterceptor(function(name){
- return name == 'Brian';
-});
-
-sayHiToFriend('Fred'); // no alert
-sayHiToFriend('Brian'); // alerts "Hi, Brian"
-
-var s = String.leftPad('123', 5, '0');
-// s now contains the string: '00123'
-
-var cls = 'my-class', text = 'Some text';
-var s = String.format('<div class="{0}">{1}</div>', cls, text);
-// s now contains the string: '<div class="my-class">Some text</div>'
-
-// alternate sort directions
-sort = sort.toggle('ASC', 'DESC');
-
-// instead of conditional logic:
-sort = (sort == 'ASC' ? 'DESC' : 'ASC');
-
-var s = ' foo bar ';
-alert('-' + s + '-'); //alerts "- foo bar -"
-alert('-' + s.trim() + '-'); //alerts "-foo bar-"
-