/*******************************************************************************
* 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;
import org.eclipse.core.commands.Command;
import org.eclipse.core.commands.ParameterizedCommand;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.ui.IPerspectiveDescriptor;
import org.eclipse.ui.commands.ICommandService;
import org.eclipse.ui.model.PerspectiveLabelProvider;
/**
* This handler is used to switch between perspectives using the keyboard.
* <p>
* Replacement for CyclePerspectiveAction
* </p>
*
* @since 3.3
*/
public class CyclePerspectiveHandler extends CycleBaseHandler {
private PerspectiveLabelProvider labelProvider = new PerspectiveLabelProvider(
false);
/* (non-Javadoc)
* @see org.eclipse.ui.internal.CycleBaseHandler#addItems(org.eclipse.swt.widgets.Table, org.eclipse.ui.internal.WorkbenchPage)
*/
protected void addItems(Table table, WorkbenchPage page) {
IPerspectiveDescriptor perspectives[] = page.getSortedPerspectives();
for (int i = perspectives.length - 1; i >= 0; i--) {
TableItem item = new TableItem(table, SWT.NONE);
IPerspectiveDescriptor desc = perspectives[i];
String text = labelProvider.getText(desc);
if(text == null) {
text = "";//$NON-NLS-1$
}
item.setText(text);
item.setImage(labelProvider.getImage(desc));
item.setData(desc);
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.internal.CycleBaseHandler#getBackwardCommand()
*/
protected ParameterizedCommand getBackwardCommand() {
final ICommandService commandService = (ICommandService) window.getWorkbench().getService(ICommandService.class);
final Command command = commandService.getCommand("org.eclipse.ui.window.previousPerspective"); //$NON-NLS-1$
ParameterizedCommand commandBack = new ParameterizedCommand(command, null);
return commandBack;
}
/* (non-Javadoc)
* @see org.eclipse.ui.internal.CycleBaseHandler#getForwardCommand()
*/
protected ParameterizedCommand getForwardCommand() {
final ICommandService commandService = (ICommandService) window.getWorkbench().getService(ICommandService.class);
final Command command = commandService.getCommand("org.eclipse.ui.window.nextPerspective"); //$NON-NLS-1$
ParameterizedCommand commandF = new ParameterizedCommand(command, null);
return commandF;
}
/* (non-Javadoc)
* @see org.eclipse.ui.internal.CycleBaseHandler#getTableHeader()
*/
protected String getTableHeader() {
return WorkbenchMessages.CyclePerspectiveAction_header;
}
/* (non-Javadoc)
* @see org.eclipse.core.commands.AbstractHandler#dispose()
*/
public void dispose() {
if (labelProvider!=null) {
labelProvider.dispose();
labelProvider = null;
}
super.dispose();
}
}