| /******************************************************************************* |
| * Copyright (c) 2014 TwelveTone LLC 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: |
| * Steven Spungin <steven@spungin.tv> - initial API and implementation, Bug 432372 |
| *******************************************************************************/ |
| |
| package org.eclipse.e4.tools.emf.ui.internal.handlers; |
| |
| import javax.inject.Named; |
| import org.eclipse.e4.core.di.annotations.CanExecute; |
| import org.eclipse.e4.core.di.annotations.Optional; |
| import org.eclipse.e4.tools.emf.ui.internal.common.component.tabs.IViewEObjects; |
| |
| public class AbstractHandler { |
| |
| static final public String VIEWER_KEY = "org.eclipse.e4.tools.active-object-viewer"; //$NON-NLS-1$ |
| |
| @CanExecute |
| public boolean canExecute(@Optional @Named(VIEWER_KEY) IViewEObjects viewer) { |
| return (viewer != null); |
| } |
| |
| } |
