Bug 32553 [Viewers] Closing a project does not remove [+] icon
I just launched I20030220 and imported a couple of existing projects into the workspace, with the [+] icon by each project (denoting contents). I then closed a couple of the projects that I was not looking at, and the [+] icon remained after closing the projects. Of course clicking on this icon resulted in nothing happening, except the [+] disappeared. It would be better if the icon was cleared when the project was closed. Mac OS X.2.4 Eclipse I20030220
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/model/WorkbenchContentProvider.java
}
		if (newInput instanceof IWorkspace) {
			newWorkspace = (IWorkspace) newInput;
		} else if (newInput instanceof IContainer) {
			newWorkspace = ((IContainer) newInput).getWorkspace();
		}
		if (oldWorkspace != newWorkspace) {
			if (oldWorkspace != null) {
				oldWorkspace.removeResourceChangeListener(this);
			}
			if (newWorkspace != null) {
				newWorkspace.addResourceChangeListener(this,
						IResourceChangeEvent.POST_CHANGE);
			}
		}
	}
	/*
	 * (non-Javadoc) Method declared on IResourceChangeListener.
	 */
	public final void resourceChanged(final IResourceChangeEvent event) {
		processDelta(event.getDelta());
	}
	/**
	 * Process the resource delta.
	 * 
	 * @param delta
	 */
	protected void processDelta(IResourceDelta delta) {		
		Control ctrl = viewer.getControl();
		if (ctrl == null || ctrl.isDisposed())