| /******************************************************************************* |
| * Copyright (c) 2007 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.tests.views.properties.tabbed.override; |
| |
| import org.eclipse.core.runtime.ListenerList; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.SelectionChangedEvent; |
| import org.eclipse.jface.viewers.TableViewer; |
| import org.eclipse.ui.tests.views.properties.tabbed.model.Element; |
| |
| /** |
| * The selection provider for the override tests view. |
| * |
| * @author Anthony Hunter |
| * @since 3.4 |
| */ |
| public class OverrideTestsSelectionProvider implements ISelectionProvider { |
| |
| private ListenerList selectionChangedListeners = new ListenerList(); |
| |
| private final TableViewer viewer; |
| |
| /** |
| * Constructor for OverrideTestsSelectionProvider |
| * |
| * @param aViewer |
| * the viewer in the OverrideTestsView. |
| */ |
| OverrideTestsSelectionProvider(TableViewer aViewer) { |
| this.viewer = aViewer; |
| } |
| |
| @Override |
| public void addSelectionChangedListener(ISelectionChangedListener listener) { |
| selectionChangedListeners.add(listener); |
| } |
| |
| @Override |
| public ISelection getSelection() { |
| IStructuredSelection structuredSelection = viewer.getStructuredSelection(); |
| if (structuredSelection.isEmpty()) { |
| return new OverrideTestsSelection(null); |
| } |
| Element element = (Element) structuredSelection.getFirstElement(); |
| return new OverrideTestsSelection(element); |
| } |
| |
| @Override |
| public void removeSelectionChangedListener( |
| ISelectionChangedListener listener) { |
| selectionChangedListeners.remove(listener); |
| } |
| |
| /** |
| * Notify the selection changed listeners that a selection change has |
| * occurred. |
| * |
| * @param event |
| * the selection change event. |
| */ |
| public void selectionChanged(final SelectionChangedEvent event) { |
| // pass on the notification to listeners |
| Object[] listeners = selectionChangedListeners.getListeners(); |
| for (int i = 0; i < listeners.length; ++i) { |
| final ISelectionChangedListener l = (ISelectionChangedListener) listeners[i]; |
| l.selectionChanged(event); |
| } |
| } |
| |
| @Override |
| public void setSelection(ISelection selection) { |
| viewer.setSelection(selection); |
| } |
| } |