| Language Version: | ActionScript 3.0 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The IFocusManagerComponent interface defines the interface
that focusable components must implement in order to
receive focus from the FocusManager.
The base implementations of this interface are in the UIComponent class,
but UIComponent does not implement the full IFocusManagerComponent interface
since some UIComponents are not intended to receive focus.
Therefore, to make a UIComponent-derived component be a valid focusable
component, you simply add "implements IFocusManagerComponent" to the class
definition.
focusEnabled:Boolean| Language Version: | ActionScript 3.0 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
A flag that indicates whether the component can receive focus when selected.
As an optimization, if a child component in your component
implements the IFocusManagerComponent interface, and you
never want it to receive focus,
you can set focusEnabled
to false before calling addChild()
on the child component.
This will cause the FocusManager to ignore this component
and not monitor it for changes to the tabFocusEnabled,
hasFocusableChildren, and mouseFocusEnabled properties.
This also means you cannot change this value after
addChild() and expect the FocusManager to notice.
Note: It does not mean that you cannot give this object focus
programmatically in your setFocus() method;
it just tells the FocusManager to ignore this IFocusManagerComponent
component in the Tab and mouse searches.
Implementation public function get focusEnabled():Boolean public function set focusEnabled(value:Boolean):voidhasFocusableChildren:Boolean| Language Version: | ActionScript 4.0 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
A flag that indicates whether child objects can receive focus.
Note: This property is similar to the tabChildren property
used by Flash Player.
Use the hasFocusableChildren property with Flex applications.
Do not use the tabChildren property.
This property is usually false because most components
either receive focus themselves or delegate focus to a single
internal sub-component and appear as if the component has
received focus.
For example, a TextInput control contains a focusable
child RichEditableText control, but while the RichEditableText
sub-component actually receives focus, it appears as if the
TextInput has focus. TextInput sets hasFocusableChildren
to false because TextInput is considered the
component that has focus. Its internal structure is an
abstraction.
Usually only navigator components, such as TabNavigator and
Accordion, have this flag set to true because they
receive focus on Tab but focus goes to components in the child
containers on further Tabs.
The default value is false, except for the
spark.components.Scroller component.
For that component, the default value is true.
Implementation public function get hasFocusableChildren():Boolean public function set hasFocusableChildren(value:Boolean):voidmouseFocusEnabled:Boolean [read-only]
| Language Version: | ActionScript 3.0 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
A flag that indicates whether the component can receive focus
when selected with the mouse.
If false, focus will be transferred to
the first parent that is mouseFocusEnabled.
Implementation public function get mouseFocusEnabled():BooleantabFocusEnabled:Boolean [read-only]
| Language Version: | ActionScript 3.0 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
A flag that indicates whether pressing the Tab key eventually
moves focus to this component.
Even if false, you can still be given focus
by being selected with the mouse or via a call to
setFocus(). This property replaces
InteractiveObject.tabEnabled which must be set to true
in Flex apps.
Implementation public function get tabFocusEnabled():BooleantabIndex:int| Language Version: | ActionScript 3.0 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
If tabFocusEnabled, the order in which the component receives focus.
If -1, then the component receives focus based on z-order.
Implementation public function get tabIndex():int public function set tabIndex(value:int):void public function drawFocus(isFocused:Boolean):void| Language Version: | ActionScript 3.0 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Called by the FocusManager when the component receives focus.
The component should draw or hide a graphic
that indicates that the component has focus.
Parameters
| isFocused:Boolean — If true, draw the focus indicator,
otherwise hide it.
|
public function setFocus():void| Language Version: | ActionScript 3.0 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Called by the FocusManager when the component receives focus.
The component may in turn set focus to an internal component.
