| /******************************************************************************* |
| * Copyright (c) 2005, 2016 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.help.ui.internal; |
| |
| import org.eclipse.core.commands.AbstractHandler; |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.help.ui.internal.views.HelpTray; |
| import org.eclipse.jface.dialogs.TrayDialog; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Shell; |
| |
| /** |
| * The command handler that gets invoked when the "Close User Assistance |
| * Tray" command is invoked. It finds the current active dialog, and if it |
| * has the tray open, it closes it. |
| */ |
| public class CloseHelpTrayHandler extends AbstractHandler { |
| |
| /** |
| * Executes the command. |
| */ |
| @Override |
| public Object execute(ExecutionEvent event) throws ExecutionException { |
| Display display = Display.getCurrent(); |
| if (display == null) { |
| display = Display.getDefault(); |
| } |
| if (display != null) { |
| Shell shell = Display.getCurrent().getActiveShell(); |
| if (shell != null && !shell.isDisposed()) { |
| Object shellData = shell.getData(); |
| if (shellData instanceof TrayDialog) { |
| TrayDialog trayDialog = (TrayDialog)shellData; |
| if (trayDialog.getTray() instanceof HelpTray) { |
| trayDialog.closeTray(); |
| } |
| } |
| } |
| } |
| return null; |
| } |
| } |