CSSStyleDeclaration

Paket	mx.styles
Klass	public class CSSStyleDeclaration
Arv	CSSStyleDeclaration EventDispatcher Object
Underklasser	AdvancedDataGridColumn, DataGridColumn

Språkversion:

ActionScript 3.0

Produktversion:

Flex 3

Körningsmiljöversioner:

Flash Player 9, AIR 1.1

The CSSStyleDeclaration class represents a set of CSS style rules. The MXML compiler automatically generates one CSSStyleDeclaration object for each selector in the CSS files associated with a Flex application.

A CSS rule such as

      Button { color: #FF0000 }

affects every instance of the Button class; a selector like Button is called a type selector and must not start with a dot.

A CSS rule such as

      .redButton { color: #FF0000 }

affects only components whose styleName property is set to "redButton"; a selector like .redButton is called a class selector and must start with a dot.

You can access the autogenerated CSSStyleDeclaration objects using the StyleManager.getStyleDeclaration() method, passing it either a type selector

  var buttonDeclaration:CSSStyleDeclaration =
      StyleManager.getStyleDeclaration("Button");

or a class selector

  var redButtonStyleDeclaration:CSSStyleDeclaration =
      StyleManager.getStyleDeclaration(".redButton");

You can use the getStyle(), setStyle(), and clearStyle() methods to get, set, and clear style properties on a CSSStyleDeclaration.

You can also create and install a CSSStyleDeclaration at run time using the StyleManager.setStyleDeclaration() method:

  var newStyleDeclaration:CSSStyleDeclaration = new CSSStyleDeclaration(".bigMargins");
  newStyleDeclaration.defaultFactory = function():void
  {
      leftMargin = 50;
      rightMargin = 50;
  }
  StyleManager.setStyleDeclaration(".bigMargins", newStyleDeclaration, true);

Fler exempel

Using the StyleManager class

Relaterade API-element

mx.core.UIComponent
mx.styles.StyleManager

Publika egenskaper

Dölj ärvda publika egenskaper

Visa ärvda publika egenskaper

	Egenskap		Definieras med
		constructor : Object En referens till klassobjektet eller konstruktorfunktionen för en given objektinstans.	Object
		defaultFactory : Function This function, if it isn't null, is usually autogenerated by the MXML compiler.	CSSStyleDeclaration
		factory : Function This function, if it isn't null, is usually autogenerated by the MXML compiler.	CSSStyleDeclaration
		overrides : Object If the setStyle() method is called on a UIComponent or CSSStyleDeclaration at run time, this object stores the name/value pairs that were set; they override the name/value pairs in the objects produced by the methods specified by the defaultFactory and factory properties.	CSSStyleDeclaration
		selector : CSSSelector This property is the base selector of a potential chain of selectors and conditions that are used to match CSS style declarations to components.	CSSStyleDeclaration
		selectorIndex : int = 0 The order this CSSStyleDeclaration was added to its StyleManager.	CSSStyleDeclaration
		specificity : int [skrivskyddad] Determines the order of precedence when applying multiple style declarations to a component.	CSSStyleDeclaration
		subject : String [skrivskyddad] The subject describes the name of a component that may be a potential match for this style declaration.	CSSStyleDeclaration

Publika metoder

Dölj ärvda publika metoder

Visa ärvda publika metoder

	Metod		Definieras med
		CSSStyleDeclaration(selector:Object = null, styleManager:IStyleManager2 = null, autoRegisterWithStyleManager:Boolean = true) Constructor.	CSSStyleDeclaration
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registrerar ett händelseavlyssnarobjekt för ett EventDispatcher-objekt så att avlyssnaren får meddelanden om händelser.	EventDispatcher
		clearStyle(styleProp:String):void Clears a style property on this CSSStyleDeclaration.	CSSStyleDeclaration
		dispatchEvent(event:Event):Boolean Skickar en händelse till händelseflödet.	EventDispatcher
		getStyle(styleProp:String):* Gets the value for a specified style property, as determined solely by this CSSStyleDeclaration.	CSSStyleDeclaration
		hasEventListener(type:String):Boolean Kontrollerar om EventDispatcher-objektet har några avlyssnare registrerade för en viss typ av händelse.	EventDispatcher
		hasOwnProperty(name:String):Boolean Anger om det finns en egenskap angiven för ett objekt.	Object
		isPrototypeOf(theClass:Object):Boolean Anger om en instans av klassen Object finns i prototypkedjan för objektet som anges som parameter.	Object
		matchesStyleClient(object:IAdvancedStyleClient):Boolean Determines whether this style declaration applies to the given component based on a match of the selector chain.	CSSStyleDeclaration
		propertyIsEnumerable(name:String):Boolean Anger om den angivna egenskapen finns och är uppräkningsbar.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Tar bort en avlyssnare från EventDispatcher-objektet.	EventDispatcher
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Anger tillgänglighet för en dynamisk egenskap för slingåtgärder.	Object
		setStyle(styleProp:String, newValue:*):void Sets a style property on this CSSStyleDeclaration.	CSSStyleDeclaration
		toLocaleString():String Returnerar det här objektets strängrepresentation, formaterad i enlighet med språkspecifika konventioner.	Object
		toString():String Returnerar det angivna objektets strängbeteckning.	Object
		valueOf():Object Returnerar det angivna objektets primitiva värde.	Object
		willTrigger(type:String):Boolean Kontrollerar om en händelseavlyssnare är registrerad för det här EventDispatcher-objektet eller något av dess överordnade objekt för den angivna händelsetypen.	EventDispatcher

Händelser

Klicka för mer information om händelser

Dölj ärvda händelser

Visa ärvda händelser

	Händelse		Sammanfattning	Definieras med
		activate	[utsändningshändelse] Skickas när Flash Player eller AIR får operativsystemfokus och blir aktivt.	EventDispatcher
		deactivate	[utsändningshändelse] Skickas när Flash Player eller AIR förlorar operativsystemfokus och blir inaktivt.	EventDispatcher

Egenskapsdetaljer

defaultFactory

egenskap

defaultFactory:Function

Språkversion:

ActionScript 3.0

Produktversion:

Flex 3

Körningsmiljöversioner:

Flash Player 9, AIR 1.1

This function, if it isn't null, is usually autogenerated by the MXML compiler. It produce copies of a plain Object, such as { leftMargin: 10, rightMargin: 10 }, containing name/value pairs for style properties; the object is used to build a node of the prototype chain for looking up style properties.

If this CSSStyleDeclaration is owned by a UIComponent written in MXML, this function encodes the style attributes that were specified on the root tag of the component definition.

If the UIComponent was written in ActionScript, this property is null.

Implementering
public function get defaultFactory():Function
public function set defaultFactory(value:Function):void

factory

egenskap

factory:Function

Språkversion:

ActionScript 3.0

Produktversion:

Flex 3

Körningsmiljöversioner:

Flash Player 9, AIR 1.1

If this CSSStyleDeclaration is owned by a UIComponent, this function encodes the style attributes that were specified in MXML for an instance of that component.

Implementering
public function get factory():Function
public function set factory(value:Function):void

overrides

egenskap

overrides:Object

Språkversion:

ActionScript 3.0

Produktversion:

Flex 3

Körningsmiljöversioner:

Flash Player 9, AIR 1.1

If the setStyle() method is called on a UIComponent or CSSStyleDeclaration at run time, this object stores the name/value pairs that were set; they override the name/value pairs in the objects produced by the methods specified by the defaultFactory and factory properties.

Implementering
public function get overrides():Object
public function set overrides(value:Object):void

selector

egenskap

selector:CSSSelector

Språkversion:

ActionScript 3.0

Produktversion:

Flex 4

Körningsmiljöversioner:

Flash Player 10, AIR 1.5

This property is the base selector of a potential chain of selectors and conditions that are used to match CSS style declarations to components.

Implementering
public function get selector():CSSSelector
public function set selector(value:CSSSelector):void

selectorIndex

egenskap

public var selectorIndex:int = 0

The order this CSSStyleDeclaration was added to its StyleManager. MatchStyleDeclarations has to return the declarations in the order they were declared

specificity

egenskap

specificity:int [skrivskyddad]

Språkversion:

ActionScript 3.0

Produktversion:

Flex 4

Körningsmiljöversioner:

Flash Player 10, AIR 1.5

Determines the order of precedence when applying multiple style declarations to a component. If style declarations are of equal precedence, the last one wins.

Implementering
public function get specificity():int

subject

egenskap

subject:String [skrivskyddad]

Språkversion:

ActionScript 3.0

Produktversion:

Flex 4

Körningsmiljöversioner:

Flash Player 10, AIR 1.5

The subject describes the name of a component that may be a potential match for this style declaration. The subject is determined as right most simple type selector in a potential chain of selectors.

Implementering
public function get subject():String

Konstruktordetaljer

()

Konstruktor

public function CSSStyleDeclaration(selector:Object = null, styleManager:IStyleManager2 = null, autoRegisterWithStyleManager:Boolean = true)

Språkversion:

ActionScript 3.0

Produktversion:

Flex 3

Körningsmiljöversioner:

Flash Player 9, AIR 1.1

Constructor.

Parametrar

	`selector:Object` (default = `null`) — - If the selector is a CSSSelector then advanced CSS selectors are supported. If a String is used for the selector then only simple CSS selectors are supported. If the String starts with a dot it is interpreted as a universal class selector, otherwise it must represent a simple type selector. If not null, this CSSStyleDeclaration will be registered with StyleManager.

	`styleManager:IStyleManager2` (default = `null`) — - The style manager to set this declaration into. If the styleManager is null the top-level style manager will be used.

	`autoRegisterWithStyleManager:Boolean` (default = `true`) — - If true set the selector in the styleManager. The selector will only be set if both `selector` and `styleManager` are both non-null.

Metoddetaljer

clearStyle

()

metod

public function clearStyle(styleProp:String):void

Språkversion:

ActionScript 3.0

Produktversion:

Flex 3

Körningsmiljöversioner:

Flash Player 9, AIR 1.1

Clears a style property on this CSSStyleDeclaration. This is the same as setting the style value to undefined.

Parametrar

styleProp:String — The name of the style property.

getStyle

()

metod

public function getStyle(styleProp:String):*

Språkversion:

ActionScript 3.0

Produktversion:

Flex 3

Körningsmiljöversioner:

Flash Player 9, AIR 1.1

Gets the value for a specified style property, as determined solely by this CSSStyleDeclaration.

The returned value may be of any type.

The values null, "", false, NaN, and 0 are all valid style values, but the value undefined is not; it indicates that the specified style is not set on this CSSStyleDeclaration. You can use the method StyleManager.isValidStyleValue() to test the value that is returned.

Parametrar

styleProp:String — The name of the style property.

Returnerar

* — The value of the specified style property if set, or undefined if not.

matchesStyleClient

()

metod

public function matchesStyleClient(object:IAdvancedStyleClient):Boolean

Språkversion:

ActionScript 3.0

Produktversion:

Flex 4

Körningsmiljöversioner:

Flash Player 10, AIR 1.5

Determines whether this style declaration applies to the given component based on a match of the selector chain.

Parametrar

object:IAdvancedStyleClient — The component to match the style declaration against.

Returnerar

Boolean — true if this style declaration applies to the component, otherwise false.

setStyle

()

metod

public function setStyle(styleProp:String, newValue:*):void

Språkversion:

ActionScript 3.0

Produktversion:

Flex 3

Körningsmiljöversioner:

Flash Player 9, AIR 1.1

Sets a style property on this CSSStyleDeclaration.

Parametrar

	`styleProp:String` — The name of the style property.

	`newValue:*` — The value of the style property. The value may be of any type. The values `null`, `""`, `false`, `NaN`, and `0` are all valid style values, but the value `undefined` is not. Setting a style property to the value `undefined` is the same as calling the `clearStyle()` method.

Juridiska meddelanden | Onlinesekretesspolicy

CSSStyleDeclaration - AS3 Flex

Klasser x

defaultFactory

factory

overrides

selector

selectorIndex

specificity

subject