/*******************************************************************************
* Copyright (c) 2007 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
******************************************************************************/
package org.eclipse.ui.internal.handlers;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.commands.ICommandService;
import org.eclipse.ui.commands.IElementUpdater;
import org.eclipse.ui.handlers.HandlerUtil;
import org.eclipse.ui.internal.WorkbenchMessages;
import org.eclipse.ui.internal.WorkbenchWindow;
import org.eclipse.ui.menus.UIElement;
import org.eclipse.ui.services.IServiceScopes;
/**
* Handler that toggles the visibility of the coolbar/perspective bar in a given window.
*
* @since 3.3
*/
public class ToggleCoolbarHandler extends AbstractHandler implements
IElementUpdater {
/*
* (non-Javadoc)
*
* @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*/
public Object execute(ExecutionEvent event) throws ExecutionException {
final IWorkbenchWindow activeWorkbenchWindow = HandlerUtil
.getActiveWorkbenchWindowChecked(event);
if (activeWorkbenchWindow instanceof WorkbenchWindow) {
WorkbenchWindow window = (WorkbenchWindow) activeWorkbenchWindow;
window.toggleToolbarVisibility();
ICommandService commandService = (ICommandService) activeWorkbenchWindow
.getService(ICommandService.class);
Map filter = new HashMap();
filter.put(IServiceScopes.WINDOW_SCOPE, window);
commandService.refreshElements(event.getCommand().getId(), filter);
}
return null;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.commands.IElementUpdater#updateElement(org.eclipse.ui.menus.UIElement,
* java.util.Map)
*/
public void updateElement(UIElement element, Map parameters) {
IWorkbenchWindow window = (IWorkbenchWindow) element
.getServiceLocator().getService(IWorkbenchWindow.class);
if (window == null || !(window instanceof WorkbenchWindow))
return;
element
.setText(isCoolbarVisible((WorkbenchWindow) window) ? WorkbenchMessages.ToggleCoolbarVisibilityAction_hide_text
: WorkbenchMessages.ToggleCoolbarVisibilityAction_show_text);
}
/**
* Return whether the coolbar is currently visible.
*
* @param window
* the window to test
* @return whether or not the coolbar is visible
*/
private boolean isCoolbarVisible(WorkbenchWindow window) {
return window.getCoolBarVisible() || window.getPerspectiveBarVisible();
}
}