Package com.google.gwt.user.client
Interface WindowCloseListener
- All Superinterfaces:
EventListener
Deprecated.
Implement this interface to receive closing events from the browser window.
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Method Summary
Modifier and TypeMethodDescriptionvoid
Deprecated.Deprecated.
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Method Details
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onWindowClosing
Deprecated.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.
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onWindowClosed
Deprecated.Fired after the browser window closes or navigates to a different site. This event cannot be canceled, and is used mainly to clean up application state and/or save state to the server.
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Window.ClosingHandler
andCloseHandler
instead