extended by DefaultFocusManager
Manages focus of UI components.
Dispatched when the focus manager is disposed.
Specifies if this focus manager is enabled or disabled.
A place for UI components to draw their focus indicators, if requested.
The root of the focus manager.
Indicates if UI components should draw their focus indicators.
Disposes this focus manager. A focus manager should never be used again
dispose(). Must dispatch
Event.CLEAR when called.