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spark.components.supportClasses 

DropDownController  - AS3 Flex

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Elementos de linguagem

Constantes globais
Funções globais
Operadores
Instruções, palavras-chave e diretivas
Tipos especiais

Apêndices

Novidades
Erros do compilador
Avisos do compilador
Erros de runtime
Migrando para o ActionScript 3
Conjuntos de caracteres suportados
Tags MXML apenas
Elementos XML de movimento
Marcas de texto cronometradas
Lista de elementos deprecados
Constantes de Implementação de Acessibilidade
Como Usar Exemplos do ActionScript
Aspectos jurídicos
Pacotespark.components.supportClasses
Classepublic class DropDownController
HerançaDropDownController Inheritance EventDispatcher Inheritance Object

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 4
Versões de runtime: Flash Player 10, AIR 1.5

The DropDownController class handles the mouse, keyboard, and focus interactions for an anchor button and its associated drop down. This class is used by the drop-down components, such as DropDownList, to handle the opening and closing of the drop down due to user interactions.

Elementos da API relacionados



Propriedades públicas
 PropriedadeDefinido por
      closeOnResize : Boolean
When true, resizing the system manager closes the drop down.
DropDownController
 Inheritedconstructor : Object
Uma referência ao objeto de classe ou à função de construtor de uma determinada ocorrência de objeto.
Object
  hitAreaAdditions : Vector.<DisplayObject>
A list of display objects to consider part of the hit area of the drop down.
DropDownController
  isOpen : Boolean
[somente leitura] Contains true if the drop down is open.
DropDownController
  openButton : ButtonBase
A reference to the openButton skin part of the drop-down component.
DropDownController
  rollOverOpenDelay : Number
Specifies the delay, in milliseconds, to wait for opening the drop down when the anchor button is rolled over.
DropDownController
  systemManager : ISystemManager
A reference to the SystemManager used for mouse tracking.
DropDownController
Métodos públicos
 MétodoDefinido por
  
Constructor.
DropDownController
 Inherited
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registra um objeto de ouvinte de evento em um objeto EventDispatcher, de forma que o ouvinte receba a notificação de um evento.
EventDispatcher
  
Close the drop down and dispatch a DropDownEvent.CLOSE event.
DropDownController
 Inherited
Envia um evento para o fluxo de eventos.
EventDispatcher
 Inherited
Verifica se o objeto EventDispatcher tem ouvintes registrados para um tipo específico de evento.
EventDispatcher
 Inherited
Indica se um objeto tem uma propriedade especificada definida.
Object
 Inherited
Indica se uma ocorrência da classe Object está na cadeia de protótipos do objeto especificado como o parâmetro.
Object
  
Open the drop down and dispatch a DropdownEvent.OPEN event.
DropDownController
  
Close the drop down if it is no longer in focus.
DropDownController
  
Handles the keyboard user interactions.
DropDownController
 Inherited
Indica se a propriedade especificada existe e é enumerável.
Object
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
Remove um ouvinte do objeto EventDispatcher.
EventDispatcher
 Inherited
Define a disponibilidade de uma propriedade dinâmica para operações de repetição.
Object
 Inherited
Retorna a representação da string deste objeto, formatado segundo as convenções específicas para a localidade.
Object
 Inherited
Retorna a representação de string do objeto especificado.
Object
 Inherited
Retorna o valor primitivo do objeto especificado.
Object
 Inherited
Verifica se um ouvinte de evento está registrado nesse objeto EventDispatcher ou em qualquer um de seus ancestrais para o tipo de evento especificado.
EventDispatcher
Eventos
 Evento Resumo Definido por
 Inherited[transmissão de evento] Despachado quando o Flash Player ou o aplicativo do AIR ganha o foco do sistema operacional e está se tornando inativo.EventDispatcher
 Inherited[transmissão de evento] Despachado quando o Flash Player ou o aplicativo do AIR perde o foco do sistema operacional e está se tornando inativo.EventDispatcher
Detalhes da propriedade
    

closeOnResize

propriedade
closeOnResize:Boolean

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 4.6
Versões de runtime: AIR 3

When true, resizing the system manager closes the drop down. For mobile applications, you can set this property to false so that the drop down stays open when the page orientation changes.

O valor padrão é true.



Implementação
    public function get closeOnResize():Boolean
    public function set closeOnResize(value:Boolean):void

hitAreaAdditions

propriedade 
public var hitAreaAdditions:Vector.<DisplayObject>

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 4
Versões de runtime: Flash Player 10, AIR 1.5

A list of display objects to consider part of the hit area of the drop down. Mouse clicks within any component listed as an inclusion will not automatically close the drop down.

isOpen

propriedade 
isOpen:Boolean  [somente leitura]

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 4
Versões de runtime: Flash Player 10, AIR 1.5

Contains true if the drop down is open.



Implementação
    public function get isOpen():Boolean

openButton

propriedade 
openButton:ButtonBase

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 4
Versões de runtime: Flash Player 10, AIR 1.5

A reference to the openButton skin part of the drop-down component.



Implementação
    public function get openButton():ButtonBase
    public function set openButton(value:ButtonBase):void

rollOverOpenDelay

propriedade 
rollOverOpenDelay:Number

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 4
Versões de runtime: Flash Player 10, AIR 1.5

Specifies the delay, in milliseconds, to wait for opening the drop down when the anchor button is rolled over. If set to NaN, then the drop down opens on a click, not a rollover.

O valor padrão é NaN.



Implementação
    public function get rollOverOpenDelay():Number
    public function set rollOverOpenDelay(value:Number):void

systemManager

propriedade 
systemManager:ISystemManager

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 4
Versões de runtime: Flash Player 10, AIR 1.5

A reference to the SystemManager used for mouse tracking. if none is specified, the controller will use the systemManager associated with the openButton.



Implementação
    public function get systemManager():ISystemManager
    public function set systemManager(value:ISystemManager):void
Detalhes do construtor

DropDownController

()Construtor
public function DropDownController()

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 4
Versões de runtime: Flash Player 10, AIR 1.5

Constructor.

Detalhes do método

closeDropDown

()método
public function closeDropDown(commit:Boolean):void

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 4
Versões de runtime: Flash Player 10, AIR 1.5

Close the drop down and dispatch a DropDownEvent.CLOSE event.

Parâmetros

commit:Boolean — If true, commit the selected data item.

openDropDown

()método 
public function openDropDown():void

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 4
Versões de runtime: Flash Player 10, AIR 1.5

Open the drop down and dispatch a DropdownEvent.OPEN event.

processFocusOut

()método 
public function processFocusOut(event:FocusEvent):void

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 4
Versões de runtime: Flash Player 10, AIR 1.5

Close the drop down if it is no longer in focus.

Parâmetros

event:FocusEvent — The event object for the FOCUS_OUT event.

processKeyDown

()método 
public function processKeyDown(event:KeyboardEvent):Boolean

Versão da linguagem: ActionScript 3.0
Versão de produto: Flex 4
Versões de runtime: Flash Player 10, AIR 1.5

Handles the keyboard user interactions.

Parâmetros

event:KeyboardEvent — The event object from the keyboard event.

Retorna
Boolean — Returns true if the keyCode was recognized and handled.




[ X ]Por que inglês?
O conteúdo na Referência do ActionScript 3.0 aparece em inglês

Nem todas as partes da Referência do ActionScript 3.0 estão traduzidas em todos os idiomas. Quando um elemento de um idioma não está traduzido, ele é exibido em inglês. Por exemplo, a classe ga.controls.HelpBox não está traduzida em nenhum idioma. Por isso, na versão da referência em português do Brasil, a classe ga.controls.HelpBox é exibida em inglês.