- 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 theWindowListener
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 theWindowEvent
is passed to it.- Since:
- 1.1
- See Also:
WindowEvent
,WindowListener
, Tutorial: Writing a Window Listener
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-
Constructor Summary
Constructors Constructor and Description WindowAdapter()
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Method Summary
Methods Modifier and Type Method and Description void
windowActivated(WindowEvent e)
Invoked when a window is activated.void
windowClosed(WindowEvent e)
Invoked when a window has been closed.void
windowClosing(WindowEvent e)
Invoked when a window is in the process of being closed.void
windowDeactivated(WindowEvent e)
Invoked when a window is de-activated.void
windowDeiconified(WindowEvent e)
Invoked when a window is de-iconified.void
windowGainedFocus(WindowEvent e)
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.void
windowIconified(WindowEvent e)
Invoked when a window is iconified.void
windowLostFocus(WindowEvent e)
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.void
windowOpened(WindowEvent e)
Invoked when a window has been opened.void
windowStateChanged(WindowEvent e)
Invoked when a window state is changed.
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-
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Method Detail
-
windowOpened
public void windowOpened(WindowEvent e)
Invoked when a window has been opened.- Specified by:
windowOpened
in interfaceWindowListener
-
windowClosing
public void windowClosing(WindowEvent e)
Invoked when a window is in the process of being closed. The close operation can be overridden at this point.- Specified by:
windowClosing
in interfaceWindowListener
-
windowClosed
public void windowClosed(WindowEvent e)
Invoked when a window has been closed.- Specified by:
windowClosed
in interfaceWindowListener
-
windowIconified
public void windowIconified(WindowEvent e)
Invoked when a window is iconified.- Specified by:
windowIconified
in interfaceWindowListener
- See Also:
Frame.setIconImage(java.awt.Image)
-
windowDeiconified
public void windowDeiconified(WindowEvent e)
Invoked when a window is de-iconified.- Specified by:
windowDeiconified
in interfaceWindowListener
-
windowActivated
public void windowActivated(WindowEvent e)
Invoked when a window is activated.- Specified by:
windowActivated
in interfaceWindowListener
-
windowDeactivated
public void windowDeactivated(WindowEvent e)
Invoked when a window is de-activated.- Specified by:
windowDeactivated
in interfaceWindowListener
-
windowStateChanged
public void windowStateChanged(WindowEvent e)
Invoked when a window state is changed.- Specified by:
windowStateChanged
in interfaceWindowStateListener
- Since:
- 1.4
-
windowGainedFocus
public void windowGainedFocus(WindowEvent e)
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:
windowGainedFocus
in interfaceWindowFocusListener
- Since:
- 1.4
-
windowLostFocus
public void windowLostFocus(WindowEvent e)
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:
windowLostFocus
in interfaceWindowFocusListener
- Since:
- 1.4
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