| /******************************************************************************* |
| * Copyright (c) 2000, 2006 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.swt.SWT; |
| import org.eclipse.swt.widgets.Table; |
| import org.eclipse.swt.widgets.TableItem; |
| import org.eclipse.ui.IPerspectiveDescriptor; |
| import org.eclipse.ui.IPerspectiveListener; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.model.PerspectiveLabelProvider; |
| |
| /** |
| * Implements a action to enable the user switch between perspectives |
| * using keyboard. |
| */ |
| public class CyclePerspectiveAction extends CyclePartAction implements |
| IPerspectiveListener { |
| |
| private PerspectiveLabelProvider labelProvider = new PerspectiveLabelProvider( |
| false); |
| |
| /** |
| * Creates a CyclePerspectiveAction. |
| * |
| * @param window the window |
| * @param forward if you are cycling forward |
| */ |
| public CyclePerspectiveAction(IWorkbenchWindow window, boolean forward) { |
| super(window, forward); |
| window.addPerspectiveListener(this); |
| updateState(); |
| } |
| |
| protected void setText() { |
| // TBD: Remove text and tooltip when this becomes an invisible action. |
| if (forward) { |
| setText(WorkbenchMessages.CyclePerspectiveAction_next_text); |
| setToolTipText(WorkbenchMessages.CyclePerspectiveAction_next_toolTip); |
| // @issue missing action ids |
| getWorkbenchWindow().getWorkbench().getHelpSystem().setHelp(this, |
| IWorkbenchHelpContextIds.CYCLE_PERSPECTIVE_FORWARD_ACTION); |
| setActionDefinitionId("org.eclipse.ui.window.nextPerspective"); //$NON-NLS-1$ |
| } else { |
| setText(WorkbenchMessages.CyclePerspectiveAction_prev_text); |
| setToolTipText(WorkbenchMessages.CyclePerspectiveAction_prev_toolTip); |
| // @issue missing action ids |
| getWorkbenchWindow().getWorkbench().getHelpSystem().setHelp(this, |
| IWorkbenchHelpContextIds.CYCLE_PERSPECTIVE_BACKWARD_ACTION); |
| setActionDefinitionId("org.eclipse.ui.window.previousPerspective"); //$NON-NLS-1$ |
| } |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on IAction. |
| */ |
| public void dispose() { |
| if (getWorkbenchWindow() == null) { |
| // already disposed |
| return; |
| } |
| getWorkbenchWindow().removePerspectiveListener(this); |
| labelProvider.dispose(); |
| super.dispose(); |
| } |
| |
| /** |
| * Activate the selected item. |
| */ |
| public void activate(IWorkbenchPage page, Object selection) { |
| if (selection != null) { |
| IPerspectiveDescriptor persp = (IPerspectiveDescriptor) selection; |
| page.setPerspective(persp); |
| } |
| } |
| |
| /** |
| * Updates the enabled state. |
| */ |
| public void updateState() { |
| WorkbenchPage page = (WorkbenchPage) getActivePage(); |
| if (page == null) { |
| setEnabled(false); |
| return; |
| } |
| // enable iff there is at least one other editor to switch to |
| setEnabled(page.getSortedPerspectives().length >= 1); |
| } |
| |
| /** |
| * Add all views to the dialog in the activation order |
| */ |
| 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); |
| } |
| } |
| |
| /** |
| * Returns the string which will be shown in the table header. |
| */ |
| protected String getTableHeader() { |
| return WorkbenchMessages.CyclePerspectiveAction_header; |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on IPerspectiveListener |
| */ |
| public void perspectiveActivated(IWorkbenchPage page, |
| IPerspectiveDescriptor perspective) { |
| updateState(); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on IPerspectiveListener |
| */ |
| public void perspectiveChanged(IWorkbenchPage page, |
| IPerspectiveDescriptor perspective, String changeId) { |
| // do nothing |
| } |
| |
| } |