Bug 185569 [CommonNavigator] CommonDragAdapter should provide ways for CommonDragAdapterAssistant to perform clean up after drag has finished
Build ID: M20070212-1330 Steps To Reproduce: I am not sure if this has been fixed in later releases (I am currently working with 3.2.0). The CommonDragAdapter class used by CommonNavigator does not allow CommonDragAdapterAssistant contributions to perform clean up after drag has finished. In my version of CommonDragAdapter, its dragFinished method contains comments saying // TODO Handle clean up if drop target was outside of workbench that's why I am not sure if later versions have already addressed this issue. More information:
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/navigator/CommonDragAdapterAssistant.java
IStructuredSelection aSelection);
	/**
	 * Accept and remember the content service this assistant is associated
	 * with.
	 * 
	 * @param aContentService
	 */
	public final void setContentService(INavigatorContentService aContentService) {
		contentService = aContentService;
	}
	/**
	 * 
	 * @return The associated content service.
	 */
	public INavigatorContentService getContentService() {
		return contentService;
	}
	/**
	 * 
	 * @return The shell for the viewer this assistant is associated with or the
	 *         shell of the active workbench window.
	 */
	public final Shell getShell() {
		if (contentService != null) {
			((NavigatorContentService) contentService).getShell();
		}
		return PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
	}
}