| /******************************************************************************* |
| * Copyright (c) 2007, 2010 BMW Car IT, Technische Universitaet Muenchen, and others. |
| * All rights reserved. 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: |
| * BMW Car IT - Initial API and implementation |
| * Technische Universitaet Muenchen - Major refactoring and extension |
| *******************************************************************************/ |
| package org.eclipse.emf.edapt.common.ui; |
| |
| import java.util.List; |
| |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.ui.IEditorInput; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.IViewPart; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.PartInitException; |
| import org.eclipse.ui.handlers.HandlerUtil; |
| |
| /** |
| * Helper methods to support command handlers. |
| * |
| * @author herrmama |
| * @author $Author$ |
| * @version $Rev$ |
| * @levd.rating RED Rev: |
| */ |
| public final class HandlerUtils { |
| |
| /** Hidden constructor. */ |
| private HandlerUtils() { |
| // This class should not be instantiated. |
| } |
| |
| /** Get the selected element of type V. */ |
| public static <V> V getSelectedElement(ExecutionEvent event, Class<V> type) { |
| final ISelection selection = HandlerUtil.getCurrentSelection(event); |
| return SelectionUtils.getSelectedElement(selection, type); |
| } |
| |
| /** Get a list of selected elements of type V. */ |
| public static <V> List<V> getSelectedElements(ExecutionEvent event, Class<V> type) { |
| final ISelection selection = HandlerUtil.getCurrentSelection(event); |
| return SelectionUtils.getSelectedElements(selection, type); |
| } |
| |
| /** Get the active page from within a handler. */ |
| public static IWorkbenchPage getActivePage(ExecutionEvent event) { |
| final IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindow(event); |
| return window.getActivePage(); |
| } |
| |
| /** Open an editor from within a handler. */ |
| @SuppressWarnings("unchecked") |
| public static <E extends IEditorPart> E openEditor(ExecutionEvent event, |
| String editorId, IEditorInput editorInput) throws PartInitException { |
| try { |
| final IWorkbenchPage page = getActivePage(event); |
| return (E) page.openEditor(editorInput, editorId); |
| } catch (final ClassCastException e) { |
| return null; |
| } |
| } |
| |
| /** Show a view from within a handler. */ |
| @SuppressWarnings("unchecked") |
| public static <V extends IViewPart> V showView(ExecutionEvent event, |
| String viewId) throws PartInitException { |
| try { |
| final IWorkbenchPage page = getActivePage(event); |
| return (V) page.showView(viewId); |
| } catch (final ClassCastException e) { |
| return null; |
| } |
| } |
| } |