| 套件 | spark.accessibility |
| 類別 | public class TitleWindowAccImpl |
| 繼承 | TitleWindowAccImpl  PanelAccImpl AccImpl AccessibilityImplementation Object |
| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 4 |
| 執行階段版本: | 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:
- EVENT_OBJECT_CREATE, when it is created
- EVENT_OBJECT_DESTROY, when it is closed
- EVENT_OBJECT_LOCATIONCHANGE, when it is moved
隱藏繼承公用屬性
顯示繼承公用屬性| 方法 | 定義自 | ||
|---|---|---|---|
TitleWindowAccImpl(master:UIComponent)
Constructor. | TitleWindowAccImpl | ||
 |
IAccessible 方法會執行與組件關聯的預設動作，而該組件是由此 AccessibilityImplementation 或其子元素之一所代表。 | AccessibilityImplementation | |
|
MSAA 方法適用於傳回 DisplayObject 或 Rectangle，以便在 AccessibilityImplementation 中指定子系元素的範圍框。 | AccessibilityImplementation | |
|
用於改變組件中之選擇的 IAccessible 方法，該組件是由此 AccessibilityImplementation 所代表。 | AccessibilityImplementation | |
[靜態]
Enables accessibility in the TitleWindow class. | TitleWindowAccImpl | ||
|
傳回組件預設動作的 MSAA 方法，該組件是由此 AccessibilityImplementation 或其子元素之一所代表。 | AccessibilityImplementation | |
|
傳回子元素 (如果有的話) 無正負號整數 ID 的 MSAA 方法，該子元素在組件中具有子元素焦點。 | AccessibilityImplementation | |
|
傳回組件名稱的 MSAA 方法，該組件是由此 AccessibilityImplementation 或其子元素之一所代表。 | AccessibilityImplementation | |
|
傳回組件系統角色的 MSAA 方法，該組件是由此 AccessibilityImplementation 或其子元素之一所代表。 | AccessibilityImplementation | |
|
傳回陣列的 MSAA 方法，該陣列包含所有選取子元素的 ID。 | AccessibilityImplementation | |
|
傳回組件目前執行階段狀態的 IAccessible 方法，該組件是由此 AccessibilityImplementation 或其子元素之一所代表。 | AccessibilityImplementation | |
|
傳回組件執行階段值的 MSAA 方法，該組件是由此 AccessibilityImplementation 或其子元素之一所代表。 | AccessibilityImplementation | |
| AccessibilityImplementation | ||
| AccessibilityImplementation | ||
|
傳回陣列，其中包含 AccessibilityImplementation 所有子元素的無正負號整數 ID。 | AccessibilityImplementation | |
| [靜態]
Method for supporting Form Accessibility. | AccImpl | |
|
指出物件是否有已定義的指定屬性。 | Object | |
| [靜態]
Returns true if an ancestor of the component has enabled set to false. | AccImpl | |
|
傳回 true 或 false，以指出具有由 x、y、width 與 height 所指定之範圍框的文字物件，是否應該被視為此 AccessibilityImplementation 所代表之組件的標籤。 | AccessibilityImplementation | |
|
指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。 | Object | |
|
指出指定的屬性是否存在，以及是否可列舉。 | Object | |
|
為迴圈作業設定動態屬性的可用性。 | Object | |
|
傳回代表此物件的字串，根據地區特定慣例進行格式化。 | Object | |
|
會傳回指定之物件的字串形式。 | Object | |
|
會傳回指定之物件的基本值。 | Object | |
TitleWindowAccImpl | () | 建構函式 |
public function TitleWindowAccImpl(master:UIComponent)| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 4 |
| 執行階段版本: | Flash Player 10, AIR 1.5 |
Constructor.
參數master:UIComponent — The UIComponent instance that this AccImpl instance
is making accessible.
|
enableAccessibility | () | 方法 |
public static function enableAccessibility():void| 語言版本: | ActionScript 3.0 |
| 產品版本: | Flex 4 |
| 執行階段版本: | 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.
Tue Jun 12 2018, 03:47 PM Z