CSSStyleDeclaration

Pakket	mx.styles
Klasse	public class CSSStyleDeclaration
Overerving	CSSStyleDeclaration EventDispatcher Object
Subklassen	AdvancedDataGridColumn, DataGridColumn

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

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);

Meer voorbeelden

Using the StyleManager class

Verwante API-elementen

mx.core.UIComponent
mx.styles.StyleManager

Openbare eigenschappen

Overerfde openbare eigenschappen verbergen

Overerfde openbare eigenschappen weergeven

	Eigenschap		Gedefinieerd door
		constructor : Object Verwijzing naar het klasseobject of de constructorfunctie van een bepaalde objectinstantie.	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 [alleen-lezen] Determines the order of precedence when applying multiple style declarations to a component.	CSSStyleDeclaration
		subject : String [alleen-lezen] The subject describes the name of a component that may be a potential match for this style declaration.	CSSStyleDeclaration

Openbare methoden

Overerfde openbare methoden verbergen

Overerfde openbare methoden weergeven

	Methode		Gedefinieerd door
		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 Registreert een gebeurtenislistenerobject bij een object EventDispatcher, zodat de listener een melding van een gebeurtenis ontvangt.	EventDispatcher
		clearStyle(styleProp:String):void Clears a style property on this CSSStyleDeclaration.	CSSStyleDeclaration
		dispatchEvent(event:Event):Boolean Verzendt een gebeurtenis naar de gebeurtenisstroom.	EventDispatcher
		getStyle(styleProp:String):* Gets the value for a specified style property, as determined solely by this CSSStyleDeclaration.	CSSStyleDeclaration
		hasEventListener(type:String):Boolean Controleert of het object EventDispatcher listeners heeft geregistreerd voor een specifiek type gebeurtenis.	EventDispatcher
		hasOwnProperty(name:String):Boolean Geeft aan of voor een object een opgegeven eigenschap is gedefinieerd.	Object
		isPrototypeOf(theClass:Object):Boolean Geeft aan of een instantie van de klasse Object zich in de prototypeketen van het object bevindt dat als parameter is opgegeven.	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 Geeft aan of de opgegeven eigenschap bestaat en kan worden opgesomd.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Verwijdert een listener uit het object EventDispatcher.	EventDispatcher
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Stelt de beschikbaarheid van een dynamische eigenschap voor lusbewerkingen in.	Object
		setStyle(styleProp:String, newValue:*):void Sets a style property on this CSSStyleDeclaration.	CSSStyleDeclaration
		toLocaleString():String Geeft de tekenreeksweergave van dit object weer, geformatteerd volgens de locatiespecifieke conventies.	Object
		toString():String Retourneert een tekenreeksrepresentatie van het opgegeven object.	Object
		valueOf():Object Retourneert de primitieve waarde van het opgegeven object.	Object
		willTrigger(type:String):Boolean Controleert of een gebeurtenislistener is geregistreerd bij dit object EventDispatcher of een van de voorouders voor het opgegeven type gebeurtenis.	EventDispatcher

Gebeurtenissen

Klik voor meer informatie over gebeurtenissen.

Overerfde gebeurtenissen verbergen

Overerfde gebeurtenissen weergeven

	Gebeurtenis		Overzicht	Gedefinieerd door
		activate	[uitgezonden gebeurtenis] Wordt verzonden wanneer Flash Player of de AIR-toepassing de besturingssysteemfocus krijgt en actief wordt.	EventDispatcher
		deactivate	[uitgezonden gebeurtenis] Wordt verzonden wanneer Flash Player of de AIR-toepassing de systeemfocus verliest en inactief wordt.	EventDispatcher

Eigenschapdetails

defaultFactory

eigenschap

defaultFactory:Function

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

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.

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

factory

eigenschap

factory:Function

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

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.

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

overrides

eigenschap

overrides:Object

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

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.

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

selector

eigenschap

selector:CSSSelector

Taalversie:

ActionScript 3.0

Productversie:

Flex 4

Runtimeversies:

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.

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

selectorIndex

eigenschap

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

eigenschap

specificity:int [alleen-lezen]

Taalversie:

ActionScript 3.0

Productversie:

Flex 4

Runtimeversies:

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.

Implementatie
public function get specificity():int

subject

eigenschap

subject:String [alleen-lezen]

Taalversie:

ActionScript 3.0

Productversie:

Flex 4

Runtimeversies:

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.

Implementatie
public function get subject():String

Constructordetails

()

Constructor

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

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Constructor.

Parameters

	`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.

Methodedetails

clearStyle

()

methode

public function clearStyle(styleProp:String):void

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

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

Parameters

styleProp:String — The name of the style property.

getStyle

()

methode

public function getStyle(styleProp:String):*

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

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.

Parameters

styleProp:String — The name of the style property.

Geretourneerde waarde

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

matchesStyleClient

()

methode

public function matchesStyleClient(object:IAdvancedStyleClient):Boolean

Taalversie:

ActionScript 3.0

Productversie:

Flex 4

Runtimeversies:

Flash Player 10, AIR 1.5

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

Parameters

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

Geretourneerde waarde

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

setStyle

()

methode

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

Taalversie:

ActionScript 3.0

Productversie:

Flex 3

Runtimeversies:

Flash Player 9, AIR 1.1

Sets a style property on this CSSStyleDeclaration.

Parameters

	`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.

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CSSStyleDeclaration - AS3 Flex

Klassen x

defaultFactory

factory

overrides

selector

selectorIndex

specificity

subject