Packagespark.accessibility
Classpublic class SpinnerAccImpl
InheritanceSpinnerAccImpl Inheritance AccImpl Inheritance flash.accessibility.AccessibilityImplementation
Subclasses NumericStepperAccImpl

Language Version : ActionScript 3.0
Product Version : Flex 4
Runtime Versions : Flash Player 10, AIR 1.5

SpinnerAccImpl is the accessibility implementation class for spark.components.Spinner.

When a Spark Spinner is created, its accessibilityImplementation property is set to an instance of this class. The Flash Player then uses this class to allow MSAA clients such as screen readers to see and manipulate the Spinner. See the mx.accessibility.AccImpl and flash.accessibility.AccessibilityImplementation classes for background information about accessibility implementation classes and MSAA.

Children

A Spinner has 2 MSAA children, which are its increment and decrement buttons.

Role

The MSAA Role of a Spinner is ROLE_SYSTEM_SPINBUTTON.

The Role of each child button is ROLE_SYSTEM_PUSHBUTTON.

Name

The MSAA Name of a Spinner is, by default, an empty string. When wrapped in a FormItem element, the Name is the FormItem's label. To override this behavior, set the Spinner's accessibilityName property.

The Name of each child button comes from a locale-dependent resource. For the en_US locale, the names are "More" and "Less".

When the Name of the Spinner or one of its child button changes, a Spinner dispatches the MSAA event EVENT_OBJECT_NAMECHANGE with the proper childID for the button or 0 for itself.

Description

The MSAA Description of a Spinner is, by default, an empty string, but you can set the Spinner's accessibilityDescription property.

The Description of each child button is the empty string.

State

The MSAA State of a Spinner is a combination of:

When the State of the Spinner or one of its child buttons changes, a Spinner dispatches the MSAA event EVENT_OBJECT_STATECHANGE with the proper childID for the button or 0 for itself.

Value

The MSAA Value of a Spinner is the value currently held by the Spinner.

The child buttons do not have MSAA values.

When the Value of the Spinner changes, a Spinner dispatches the MSAA event EVENT_OBJECT_VALUECHANGE.

Location

The MSAA Location of a Spinner, or one of its child buttons, is its bounding rectangle.

Default Action

A Spinner does not have an MSAA DefaultAction.

The DefaultAction of each child button is "Press".

Performing the default action of one of the child buttons will increment or decrement the value.

Focus

A Spinner accepts focus. When it does so, it dispatches the MSAA event EVENT_OBJECT_FOCUS event.

Selection

A Spinner does not support selection in the MSAA sense.



Protected Properties
 PropertyDefined By
 InheritedeventsToHandle : Array
[read-only] All subclasses must override this function by returning an array of strings of the events to listen for.
AccImpl
 Inheritedmaster : UIComponent
A reference to the UIComponent instance that this AccImpl instance is making accessible.
AccImpl
 Inheritedrole : uint
Accessibility role of the component being made accessible.
AccImpl
Public Methods
 MethodDefined By
  
Constructor.
SpinnerAccImpl
  
[static] Enables accessibility in the Spinner class.
SpinnerAccImpl
 Inherited
getFormName(component:UIComponent):String
[static] Method for supporting Form Accessibility.
AccImpl
 Inherited
isAncestorDisabled(component:UIComponent):Boolean
[static] Returns true if an ancestor of the component has enabled set to false.
AccImpl
Protected Methods
 MethodDefined By
 Inherited
eventHandler(event:Event):void
Generic event handler.
AccImpl
 Inherited
getName(childID:uint):String
Returns the name of the accessible component.
AccImpl
 Inherited
getState(childID:uint):uint
Utility method to determine state of the accessible component.
AccImpl
Constructor Detail
SpinnerAccImpl()Constructor
public function SpinnerAccImpl(master:UIComponent)

Language Version : ActionScript 3.0
Product Version : Flex 4
Runtime Versions : Flash Player 10, AIR 1.5

Constructor.

Parameters
master:UIComponent — The UIComponent instance that this AccImpl instance is making accessible.
Method Detail
enableAccessibility()method
public static function enableAccessibility():void

Language Version : ActionScript 3.0
Product Version : Flex 4
Runtime Versions : Flash Player 10, AIR 1.5

Enables accessibility in the Spinner class.

This method is called by application startup code that is autogenerated by the MXML compiler. Afterwards, when instances of Spinner are initialized, their accessibilityImplementation property will be set to an instance of this class.