Bug 94456 [Undo] - Resource Navigator not showing workspace undo actions
The Resource Navigator is not showing the workspace undo actions. Package Explorer is correctly working. Need to look at the difference in the way the action handlers are set up.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/navigator/ResourceNavigator.java
private void initLinkingEnabled() {
        
        String setting = settings
                .get(IWorkbenchPreferenceConstants.LINK_NAVIGATOR_TO_EDITOR);
        if (setting != null) {
            linkingEnabled = setting.equals("true"); 
            return;
        }
         
        
        AbstractUIPlugin uiPlugin = (AbstractUIPlugin) Platform
                .getPlugin(PlatformUI.PLUGIN_ID);
        linkingEnabled = uiPlugin.getPreferenceStore().getBoolean(
                IWorkbenchPreferenceConstants.LINK_NAVIGATOR_TO_EDITOR);
    }
    /**
     * Adds the listeners to the viewer.
     * 
     * @param viewer the viewer
     * @since 2.0
     */
    protected void initListeners(TreeViewer viewer) {
        viewer.addSelectionChangedListener(new ISelectionChangedListener() {
            public void selectionChanged(SelectionChangedEvent event) {
                handleSelectionChanged(event);
            }
        });
        viewer.addDoubleClickListener(new IDoubleClickListener() {
            public void doubleClick(DoubleClickEvent event) {
                handleDoubleClick(event);