Class Ext.EventManager

Package:	Ext
Class:	EventManager
Extends:	Object
Defined In:	EventManager.js

Registers event handlers that want to receive a normalized EventObject instead of the standard browser event and provides several useful events directly. See Ext.EventObject for more details on normalized event objects.

This class is a singleton and cannot be created directly.

属性 - 方法 - 事件

公共属性

属性		定义对象
	ieDeferSrc : Object	EventManager
	Url used for onDocumentReady with using SSL (defaults to Ext.SSL_SECURE_URL)	EventManager

公共方法

方法		定义对象
	addListener(`String/HTMLElement element`, `String eventName`, `Function fn`, `Object options`) : void	EventManager
	加入一个事件处理器	EventManager
	onDocumentReady(`Function fn`, `Object scope`, `boolean options`) : void	EventManager
	Fires when the document is ready (before onload and before images are loaded). Can be accessed shorthanded Ext.onRea...	EventManager
	onTextResize(`Function fn`, `Object scope`, `boolean options`) : void	EventManager
	Fires when the user changes the active text size. Handler gets called with 2 params, the old size and the new size.	EventManager
	onWindowResize(`Function fn`, `Object scope`, `boolean options`) : void	EventManager
	Fires when the window is resized and provides resize event buffering (50 milliseconds), passes new viewport width and...	EventManager
	removeListener(`String/HTMLElement element`, `String eventName`, `Function fn`) : Boolean	EventManager
	Removes an event handler	EventManager
	removeResizeListener(`Function fn`, `Object scope`) : void	EventManager
	Removes the passed window resize listener.	EventManager
	wrap(`Function fn`, `Object scope`, `boolean override`) : Function	EventManager
	Deprecated. This is no longer needed and is deprecated. Places a simple wrapper around an event handler to override t...	EventManager

公共事件

此类没有公共事件。

属性详情

ieDeferSrc

public Object ieDeferSrc

Url used for onDocumentReady with using SSL (defaults to Ext.SSL_SECURE_URL)

This property is defined by EventManager.

方法详情

addListener

public function addListener(String/HTMLElement element, String eventName, Function fn, Object options)

加入一个事件处理器

参数：

element : String/HTMLElement
The html element or id to assign the event to
eventName : String
The type of event to append
fn : Function
事件调用的方法
options : Object
An object with standard EventManager options

返回：

void

This method is defined by EventManager.

onDocumentReady

public function onDocumentReady(Function fn, Object scope, boolean options)

Fires when the document is ready (before onload and before images are loaded). Can be accessed shorthanded Ext.onReady().

参数：

fn : Function
事件调用的方法
scope : Object
An object that becomes the scope of the handler
options : boolean

返回：

void

This method is defined by EventManager.

onTextResize

public function onTextResize(Function fn, Object scope, boolean options)

Fires when the user changes the active text size. Handler gets called with 2 params, the old size and the new size.

参数：

fn : Function
事件调用的方法
scope : Object
An object that becomes the scope of the handler
options : boolean

返回：

void

This method is defined by EventManager.

onWindowResize

public function onWindowResize(Function fn, Object scope, boolean options)

Fires when the window is resized and provides resize event buffering (50 milliseconds), passes new viewport width and height to handlers.

参数：

fn : Function
事件调用的方法
scope : Object
An object that becomes the scope of the handler
options : boolean

返回：

void

This method is defined by EventManager.

removeListener

public function removeListener(String/HTMLElement element, String eventName, Function fn)

Removes an event handler

参数：

element : String/HTMLElement
The id or html element to remove the event from
eventName : String
The type of event
fn : Function

返回：

Boolean
True if a listener was actually removed

This method is defined by EventManager.

removeResizeListener

public function removeResizeListener(Function fn, Object scope)

Removes the passed window resize listener.

参数：

fn : Function
事件调用的方法
scope : Object
The scope of handler

返回：

void

This method is defined by EventManager.

wrap

public function wrap(Function fn, Object scope, boolean override)

Deprecated. This is no longer needed and is deprecated. Places a simple wrapper around an event handler to override the browser event object with a Ext.EventObject

参数：

fn : Function
事件调用的方法
scope : Object
An object that becomes the scope of the handler
override : boolean
If true, the obj passed in becomes the execution scope of the listener

返回：

Function
The wrapped function

This method is defined by EventManager.