| /******************************************************************************* |
| * Copyright (c) 2008, 2009 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 java.util.Map; |
| |
| import org.eclipse.core.commands.AbstractHandler; |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| |
| import org.eclipse.jface.viewers.ISelection; |
| |
| import org.eclipse.ui.ISourceProvider; |
| import org.eclipse.ui.ISources; |
| import org.eclipse.ui.IViewPart; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.PartInitException; |
| import org.eclipse.ui.commands.IElementUpdater; |
| import org.eclipse.ui.handlers.HandlerUtil; |
| import org.eclipse.ui.internal.services.WorkbenchSourceProvider; |
| import org.eclipse.ui.internal.util.Util; |
| import org.eclipse.ui.menus.UIElement; |
| import org.eclipse.ui.part.IShowInTarget; |
| import org.eclipse.ui.part.ShowInContext; |
| import org.eclipse.ui.services.ISourceProviderService; |
| import org.eclipse.ui.views.IViewDescriptor; |
| import org.eclipse.ui.views.IViewRegistry; |
| |
| /** |
| * The show in command, which only needs a target id. |
| * |
| * @since 3.4 |
| */ |
| public class ShowInHandler extends AbstractHandler implements IElementUpdater { |
| static final String TARGET_ID = "org.eclipse.ui.navigate.showIn.targetId"; //$NON-NLS-1$ |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent) |
| */ |
| public Object execute(ExecutionEvent event) throws ExecutionException { |
| String targetId = event.getParameter(TARGET_ID); |
| if (targetId == null) { |
| throw new ExecutionException("No targetId specified"); //$NON-NLS-1$ |
| } |
| |
| final IWorkbenchWindow activeWorkbenchWindow = HandlerUtil.getActiveWorkbenchWindowChecked(event); |
| ISourceProviderService sps = (ISourceProviderService)activeWorkbenchWindow.getService(ISourceProviderService.class); |
| if (sps != null) { |
| ISourceProvider sp = sps.getSourceProvider(ISources.SHOW_IN_SELECTION); |
| if (sp instanceof WorkbenchSourceProvider) { |
| ((WorkbenchSourceProvider)sp).checkActivePart(true); |
| } |
| } |
| |
| ShowInContext context = getContext(HandlerUtil |
| .getShowInSelection(event), HandlerUtil.getShowInInput(event)); |
| if (context == null) { |
| return null; |
| } |
| |
| IWorkbenchPage page= activeWorkbenchWindow.getActivePage(); |
| |
| try { |
| IViewPart view = page.showView(targetId); |
| IShowInTarget target = getShowInTarget(view); |
| if (!(target != null && target.show(context))) { |
| page.getWorkbenchWindow().getShell().getDisplay().beep(); |
| } |
| ((WorkbenchPage) page).performedShowIn(targetId); // TODO: move |
| // back up |
| } catch (PartInitException e) { |
| throw new ExecutionException("Failed to show in", e); //$NON-NLS-1$ |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Returns the <code>ShowInContext</code> to show in the selected target, |
| * or <code>null</code> if there is no valid context to show. |
| * <p> |
| * This implementation obtains the context from global variables provide. |
| * showInSelection and showInInput should be available. |
| * <p> |
| * |
| * @return the <code>ShowInContext</code> to show or <code>null</code> |
| */ |
| private ShowInContext getContext(ISelection showInSelection, Object input) { |
| if (input == null && showInSelection == null) { |
| return null; |
| } |
| return new ShowInContext(input, showInSelection); |
| } |
| |
| /** |
| * Returns the <code>IShowInTarget</code> for the given part, or |
| * <code>null</code> if it does not provide one. |
| * |
| * @param targetPart |
| * the target part |
| * @return the <code>IShowInTarget</code> or <code>null</code> |
| */ |
| private IShowInTarget getShowInTarget(IWorkbenchPart targetPart) { |
| return (IShowInTarget) Util.getAdapter(targetPart, IShowInTarget.class); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.commands.IElementUpdater#updateElement(org.eclipse.ui.menus.UIElement, |
| * java.util.Map) |
| */ |
| public void updateElement(UIElement element, Map parameters) { |
| String targetId = (String) parameters.get(TARGET_ID); |
| if (targetId == null || targetId.length() == 0) { |
| return; |
| } |
| IViewRegistry reg = WorkbenchPlugin.getDefault().getViewRegistry(); |
| IViewDescriptor desc = reg.find(targetId); |
| if (desc != null) { |
| element.setIcon(desc.getImageDescriptor()); |
| element.setText(desc.getLabel()); |
| } |
| } |
| } |