| Package | spark.accessibility |
| Class | public class TitleWindowAccImpl |
| Inheritance | TitleWindowAccImpl  PanelAccImpl AccImpl flash.accessibility.AccessibilityImplementation |
| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
When a Spark TitleWindow is created,
the accessibilityImplementation property
of a special child Sprite 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 this component.
See the mx.accessibility.AccImpl and
flash.accessibility.AccessibilityImplementation classes
for background information about accessibility implementation
classes and MSAA.
Children
A TitleWindow has no MSAA children. All children of the actual TitleWindow are siblings of the TitleWindow in the FlashPlayer's MSAA tree, because Flash Player does not support objects with accessibility implementations having children with their own accessibility implementations.
The TitleWindowAcImpl is set as the
accessibilityImplementation of the titleDisplay
because setting it on the TitleWindow itself would not allow the
TitleWindows's children to be exposed in MSAA.
Because of this an invisible rectangle is drawn in the
titleDisplay making it the same size as the TitleWindow
as a whole so that the MSAA Location is the bounding rectangle
of the entire TitleWindow.
Screen readers like JAWS rely on the MSAA Location to announce whether
some component is in the TitleWindow since the MSAA structure is flat.
Role
The MSAA Role of a TitleWindow is ROLE_SYSTEM_PANE.
Name
The MSAA Name of a TitleWindow is, by default,
the title that it displays.
To override this behavior,
set the TitleWindow's accessibilityName property.
When the Name changes, a TitleWindow dispatches the MSAA event EVENT_OBJECT_NAMECHANGE.
Description
The MSAA Description of a TitleWindow is, by default,
the empty string, but you can set the TitleWindows's
accessibilityDescription property.
State
The MSAA State of a TitleWindow is always STATE_SYSTEM_MOVEABLE.
Since the State does not change, a TitleWindow does not dispatch the MSAA event EVENT_OBJECT_STATECHANGE.
Value
The MSAA Value of a TitleWindow is always the empty string.
Location
The MSAA Location of a TitleWindow is its bounding rectangle.
Default Action
A TitleWindow does not have an MSAA DefaultAction.
Focus
A TitleWindow does not accept focus.
Selection
A TitleWindow does not support selection in the MSAA sense.
Other
A TitleWindow also dispatches the following MSAA events:
| Method | Defined By | ||
|---|---|---|---|
TitleWindowAccImpl(master:UIComponent)
Constructor. | TitleWindowAccImpl | ||
enableAccessibility():void [static]
Enables accessibility in the TitleWindow class. | TitleWindowAccImpl | ||
 | getFormName(component:UIComponent):String [static]
Method for supporting Form Accessibility. | AccImpl | |
| isAncestorDisabled(component:UIComponent):Boolean [static]
Returns true if an ancestor of the component has enabled set to false. | AccImpl | |
| TitleWindowAccImpl | () | Constructor |
Hide Inherited Protected Properties
Show Inherited Protected Propertiespublic function TitleWindowAccImpl(master:UIComponent)| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 4 |
| Runtime Versions : | Flash Player 10, AIR 1.5 |
Constructor.
Parametersmaster:UIComponent — The UIComponent instance that this AccImpl instance
is making accessible.
|
| 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 TitleWindow class.
This method is called by application startup code
that is autogenerated by the MXML compiler.
Afterwards, when instances of TitleWindow are initialized,
the accessibilityImplementation property
of a special first child Sprite will be set to an instance
of this class.
If the TitleWindowAccImpl were attached to the TitleWindow itself
the accessibility implementations of the TitleWindow's children
would be ignored.