Class WindowAdapter
java.lang.Object
java.awt.event.WindowAdapter
- All Implemented Interfaces:
WindowFocusListener,WindowListener,WindowStateListener,EventListener
- Direct Known Subclasses:
BasicToolBarUI.FrameListener,JMenu.WinListener
public abstract class WindowAdapter
extends Object
implements WindowListener, WindowStateListener, WindowFocusListener
An abstract adapter class for receiving window events.
The methods in this class are empty. This class exists as
convenience for creating listener objects.
Extend this class to create a WindowEvent listener
and override the methods for the events of interest. (If you implement the
WindowListener interface, you have to define all of
the methods in it. This abstract class defines null methods for them
all, so you can only have to define methods for events you care about.)
Create a listener object using the extended class and then register it with
a Window using the window's addWindowListener
method. When the window's status changes by virtue of being opened,
closed, activated or deactivated, iconified or deiconified,
the relevant method in the listener
object is invoked, and the WindowEvent is passed to it.
- Since:
- 1.1
- See Also:
-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidInvoked when a window is activated.voidInvoked when a window has been closed.voidInvoked when a window is in the process of being closed.voidInvoked when a window is de-activated.voidInvoked when a window is de-iconified.voidInvoked when the Window is set to be the focused Window, which means that the Window, or one of its subcomponents, will receive keyboard events.voidInvoked when a window is iconified.voidInvoked when the Window is no longer the focused Window, which means that keyboard events will no longer be delivered to the Window or any of its subcomponents.voidInvoked when a window has been opened.voidInvoked when a window state is changed.
-
Constructor Details
-
WindowAdapter
protected WindowAdapter()Constructs aWindowAdapter.
-
-
Method Details
-
windowOpened
Invoked when a window has been opened.- Specified by:
windowOpenedin interfaceWindowListener- Parameters:
e- the event to be processed
-
windowClosing
Invoked when a window is in the process of being closed. The close operation can be overridden at this point.- Specified by:
windowClosingin interfaceWindowListener- Parameters:
e- the event to be processed
-
windowClosed
Invoked when a window has been closed.- Specified by:
windowClosedin interfaceWindowListener- Parameters:
e- the event to be processed
-
windowIconified
Invoked when a window is iconified.- Specified by:
windowIconifiedin interfaceWindowListener- Parameters:
e- the event to be processed- See Also:
-
windowDeiconified
Invoked when a window is de-iconified.- Specified by:
windowDeiconifiedin interfaceWindowListener- Parameters:
e- the event to be processed
-
windowActivated
Invoked when a window is activated.- Specified by:
windowActivatedin interfaceWindowListener- Parameters:
e- the event to be processed
-
windowDeactivated
Invoked when a window is de-activated.- Specified by:
windowDeactivatedin interfaceWindowListener- Parameters:
e- the event to be processed
-
windowStateChanged
Invoked when a window state is changed.- Specified by:
windowStateChangedin interfaceWindowStateListener- Parameters:
e- the event to be processed- Since:
- 1.4
-
windowGainedFocus
Invoked when the Window is set to be the focused Window, which means that the Window, or one of its subcomponents, will receive keyboard events.- Specified by:
windowGainedFocusin interfaceWindowFocusListener- Parameters:
e- the event to be processed- Since:
- 1.4
-
windowLostFocus
Invoked when the Window is no longer the focused Window, which means that keyboard events will no longer be delivered to the Window or any of its subcomponents.- Specified by:
windowLostFocusin interfaceWindowFocusListener- Parameters:
e- the event to be processed- Since:
- 1.4
-