| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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 |
| * Remy Chi Jian Suen <remy.suen@gmail.com> - Bug 218540 [Perspectives] Perspectives always open in same window, regardless of preference |
| *******************************************************************************/ |
| package org.eclipse.ui.handlers; |
| |
| 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.core.runtime.IAdaptable; |
| import org.eclipse.jface.dialogs.ErrorDialog; |
| import org.eclipse.jface.window.Window; |
| import org.eclipse.ui.IPerspectiveDescriptor; |
| import org.eclipse.ui.IWorkbench; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.WorkbenchException; |
| import org.eclipse.ui.internal.IPreferenceConstants; |
| import org.eclipse.ui.internal.Workbench; |
| import org.eclipse.ui.internal.WorkbenchMessages; |
| import org.eclipse.ui.internal.WorkbenchPlugin; |
| import org.eclipse.ui.internal.dialogs.SelectPerspectiveDialog; |
| |
| /** |
| * Shows the given perspective. If no perspective is specified in the |
| * parameters, then this opens the perspective selection dialog. |
| * |
| * @since 3.1 |
| */ |
| public final class ShowPerspectiveHandler extends AbstractHandler { |
| |
| /** |
| * The name of the parameter providing the perspective identifier. |
| */ |
| private static final String PARAMETER_NAME_VIEW_ID = "org.eclipse.ui.perspectives.showPerspective.perspectiveId"; //$NON-NLS-1$ |
| |
| /** |
| * True/false value to open the perspective in a new window. |
| */ |
| private static final String PARAMETER_NEW_WINDOW = "org.eclipse.ui.perspectives.showPerspective.newWindow"; //$NON-NLS-1$ |
| |
| public final Object execute(final ExecutionEvent event) |
| throws ExecutionException { |
| IWorkbenchWindow window = HandlerUtil |
| .getActiveWorkbenchWindowChecked(event); |
| |
| // Get the view identifier, if any. |
| final Map parameters = event.getParameters(); |
| final Object value = parameters.get(PARAMETER_NAME_VIEW_ID); |
| final String newWindow = (String) parameters.get(PARAMETER_NEW_WINDOW); |
| |
| if (value == null) { |
| openOther(window); |
| } else { |
| |
| if (newWindow == null || newWindow.equalsIgnoreCase("false")) { //$NON-NLS-1$ |
| openPerspective((String) value, window); |
| } else { |
| openNewWindowPerspective((String) value, window); |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Opens the specified perspective in a new window. |
| * |
| * @param perspectiveId |
| * The perspective to open; must not be <code>null</code> |
| * @throws ExecutionException |
| * If the perspective could not be opened. |
| */ |
| private void openNewWindowPerspective(String perspectiveId, |
| IWorkbenchWindow activeWorkbenchWindow) throws ExecutionException { |
| final IWorkbench workbench = PlatformUI.getWorkbench(); |
| try { |
| IAdaptable input = ((Workbench) workbench).getDefaultPageInput(); |
| workbench.openWorkbenchWindow(perspectiveId, input); |
| } catch (WorkbenchException e) { |
| ErrorDialog.openError(activeWorkbenchWindow.getShell(), |
| WorkbenchMessages.ChangeToPerspectiveMenu_errorTitle, e |
| .getMessage(), e.getStatus()); |
| } |
| } |
| |
| /** |
| * Opens a view selection dialog, allowing the user to chose a view. |
| * |
| * @throws ExecutionException |
| * If the perspective could not be opened. |
| */ |
| private final void openOther(final IWorkbenchWindow activeWorkbenchWindow) |
| throws ExecutionException { |
| final SelectPerspectiveDialog dialog = new SelectPerspectiveDialog( |
| activeWorkbenchWindow.getShell(), WorkbenchPlugin.getDefault() |
| .getPerspectiveRegistry()); |
| dialog.open(); |
| if (dialog.getReturnCode() == Window.CANCEL) { |
| return; |
| } |
| |
| final IPerspectiveDescriptor descriptor = dialog.getSelection(); |
| if (descriptor != null) { |
| int openPerspMode = WorkbenchPlugin.getDefault().getPreferenceStore() |
| .getInt(IPreferenceConstants.OPEN_PERSP_MODE); |
| IWorkbenchPage page = activeWorkbenchWindow.getActivePage(); |
| IPerspectiveDescriptor persp = page == null ? null : page.getPerspective(); |
| String perspectiveId = descriptor.getId(); |
| // only open it in a new window if the preference is set and the |
| // current workbench page doesn't have an active perspective |
| if (IPreferenceConstants.OPM_NEW_WINDOW == openPerspMode && persp != null) { |
| openNewWindowPerspective(perspectiveId, activeWorkbenchWindow); |
| } else { |
| openPerspective(perspectiveId, activeWorkbenchWindow); |
| } |
| } |
| } |
| |
| /** |
| * Opens the perspective with the given identifier. |
| * |
| * @param perspectiveId |
| * The perspective to open; must not be <code>null</code> |
| * @throws ExecutionException |
| * If the perspective could not be opened. |
| */ |
| private final void openPerspective(final String perspectiveId, |
| final IWorkbenchWindow activeWorkbenchWindow) |
| throws ExecutionException { |
| final IWorkbench workbench = PlatformUI.getWorkbench(); |
| |
| final IWorkbenchPage activePage = activeWorkbenchWindow.getActivePage(); |
| IPerspectiveDescriptor desc = activeWorkbenchWindow.getWorkbench() |
| .getPerspectiveRegistry().findPerspectiveWithId(perspectiveId); |
| if (desc == null) { |
| throw new ExecutionException("Perspective " + perspectiveId //$NON-NLS-1$ |
| + " cannot be found."); //$NON-NLS-1$ |
| } |
| |
| try { |
| if (activePage != null) { |
| activePage.setPerspective(desc); |
| } else { |
| IAdaptable input = ((Workbench) workbench) |
| .getDefaultPageInput(); |
| activeWorkbenchWindow.openPage(perspectiveId, input); |
| } |
| } catch (WorkbenchException e) { |
| throw new ExecutionException("Perspective could not be opened.", e); //$NON-NLS-1$ |
| } |
| } |
| } |