com.google.gwt.user.client
Interface WindowCloseListener


public interface WindowCloseListener

Implement this interface to receive closing events from the browser window.

See Also:
Window.addWindowCloseListener(WindowCloseListener)

Method Summary
 void onWindowClosed()
          Fired after the browser window closes or navigates to a different site.
 String onWindowClosing()
          Fired just before the browser window closes or navigates to a different site.
 

Method Detail

onWindowClosing

public String onWindowClosing()
Fired just before the browser window closes or navigates to a different site. No user-interface may be displayed during shutdown.

Returns:
non-null to present a confirmation dialog that asks the user whether or not she wishes to navigate away from the page. The string returned will be displayed in the close confirmation dialog box. If multiple listeners return messages, the first will be displayed; all others will be ignored.

onWindowClosed

public void onWindowClosed()
Fired after the browser window closes or navigates to a different site. This event cannot be cancelled, and is used mainly to clean up application state and/or save state to the server.



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