| /******************************************************************************* |
| * Copyright (c) 2010, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.internal.handlers; |
| |
| import org.eclipse.core.commands.AbstractHandler; |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.handlers.HandlerUtil; |
| import org.eclipse.ui.internal.Workbench; |
| import org.eclipse.ui.internal.intro.IntroDescriptor; |
| import org.eclipse.ui.internal.intro.IntroMessages; |
| |
| /** |
| * |
| * @author Prakash G.R. |
| * |
| * @since 3.7 |
| * |
| */ |
| public class IntroHandler extends AbstractHandler { |
| |
| private Workbench workbench; |
| private IntroDescriptor introDescriptor; |
| |
| public IntroHandler() { |
| workbench = (Workbench) PlatformUI.getWorkbench(); |
| introDescriptor = workbench.getIntroDescriptor(); |
| } |
| |
| @Override |
| public Object execute(ExecutionEvent event) { |
| |
| if (introDescriptor == null) { |
| MessageDialog.openWarning(HandlerUtil.getActiveShell(event), IntroMessages.Intro_missing_product_title, |
| IntroMessages.Intro_missing_product_message); |
| } else { |
| IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindow(event); |
| workbench.getIntroManager().showIntro(window, false); |
| } |
| return null; |
| } |
| |
| @Override |
| public boolean isEnabled() { |
| |
| boolean enabled = false; |
| IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); |
| if (window != null) { |
| enabled = window.getPages().length > 0; |
| } |
| return enabled; |
| } |
| |
| } |