Class Ext.util.CSS

Package:	Ext.util
Class:	CSS
Extends:	Object
Defined In:	CSS.js

Utility class for manipulating CSS rules

This class is a singleton and cannot be created directly.

属性 - 方法 - 事件

公共属性

此类没有公共属性。

公共方法

方法		定义对象
	createStyleSheet(`String cssText`) : StyleSheet	CSS
	Very simple dynamic creation of stylesheets from a text blob of rules. The text will wrapped in a style tag and appe...	CSS
	getRule(`String/Array selector`, `Boolean refreshCache`) : CSSRule	CSS
	Gets an an individual CSS rule by selector(s)	CSS
	getRules(`Boolean refreshCache`) : Object	CSS
	Gets all css rules for the document	CSS
	refreshCache() : Object	CSS
	Refresh the rule cache if you have dynamically added stylesheets	CSS
	removeStyleSheet(`String id`) : void	CSS
	Removes a style or link tag by id	CSS
	swapStyleSheet(`String id`, `String url`) : void	CSS
	Dynamically swaps an existing stylesheet reference for a new one	CSS
	updateRule(`String/Array selector`, `String property`, `String value`) : Boolean	CSS
	Updates a rule property	CSS

公共事件

此类没有公共事件。

方法详情

createStyleSheet

public function createStyleSheet(String cssText)

Very simple dynamic creation of stylesheets from a text blob of rules. The text will wrapped in a style tag and appended to the HEAD of the document.

参数：

cssText : String
The text containing the css rules

返回：

StyleSheet

This method is defined by CSS.

getRule

public function getRule(String/Array selector, Boolean refreshCache)

Gets an an individual CSS rule by selector(s)

参数：

selector : String/Array
The CSS selector or an array of selectors to try. The first selector that is found is returned.
refreshCache : Boolean
true to refresh the internal cache if you have recently updated any rules or added styles dynamically

返回：

CSSRule
The CSS rule or null if one is not found

This method is defined by CSS.

getRules

public function getRules(Boolean refreshCache)

Gets all css rules for the document

参数：

refreshCache : Boolean
true to refresh the internal cache

返回：

Object
An object (hash) of rules indexed by selector

This method is defined by CSS.

refreshCache

public function refreshCache()

Refresh the rule cache if you have dynamically added stylesheets

参数：

无。

返回：

Object
An object (hash) of rules indexed by selector

This method is defined by CSS.

removeStyleSheet

public function removeStyleSheet(String id)

Removes a style or link tag by id

参数：

id : String
The id of the tag

返回：

void

This method is defined by CSS.

swapStyleSheet

public function swapStyleSheet(String id, String url)

Dynamically swaps an existing stylesheet reference for a new one

参数：

id : String
The id of an existing link tag to remove
url : String
The href of the new stylesheet to include

返回：

void

This method is defined by CSS.

updateRule

public function updateRule(String/Array selector, String property, String value)

Updates a rule property

参数：

selector : String/Array
If it's an array it tries each selector until it finds one. Stops immediately once one is found.
property : String
The css property
value : String
The new value for the property

返回：

Boolean
true If a rule was found and updated

This method is defined by CSS.