| /******************************************************************************* |
| * Copyright (c) 2009, 2010 Tasktop Technologies 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: |
| * Tasktop Technologies - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.equinox.internal.p2.ui.discovery.util; |
| |
| import org.eclipse.core.commands.common.EventManager; |
| import org.eclipse.core.runtime.SafeRunner; |
| import org.eclipse.jface.util.SafeRunnable; |
| import org.eclipse.jface.viewers.*; |
| |
| /** |
| * Provides an simple implementation of {@link ISelectionProvider} that propagates selection events to registered |
| * listeners. |
| * |
| * @author Steffen Pingel |
| */ |
| public class SelectionProviderAdapter extends EventManager implements ISelectionProvider, ISelectionChangedListener { |
| |
| private ISelection selection; |
| |
| /** |
| * Constructs a <code>SelectionProviderAdapter</code> and initializes the selection to <code>selection</code>. |
| * |
| * @param selection |
| * the initial selection |
| * @see #setSelection(ISelection) |
| */ |
| public SelectionProviderAdapter(ISelection selection) { |
| setSelection(selection); |
| } |
| |
| /** |
| * Constructs a <code>SelectionProviderAdapter</code> with a <code>null</code> selection. |
| */ |
| public SelectionProviderAdapter() { |
| } |
| |
| public void addSelectionChangedListener(ISelectionChangedListener listener) { |
| addListenerObject(listener); |
| } |
| |
| public ISelection getSelection() { |
| return selection; |
| } |
| |
| public void removeSelectionChangedListener(ISelectionChangedListener listener) { |
| removeListenerObject(listener); |
| } |
| |
| public void selectionChanged(final SelectionChangedEvent event) { |
| this.selection = event.getSelection(); |
| Object[] listeners = getListeners(); |
| for (int i = 0; i < listeners.length; ++i) { |
| final ISelectionChangedListener listener = (ISelectionChangedListener) listeners[i]; |
| SafeRunner.run(new SafeRunnable() { |
| public void run() { |
| listener.selectionChanged(event); |
| } |
| }); |
| } |
| } |
| |
| public void setSelection(ISelection selection) { |
| selectionChanged(new SelectionChangedEvent(this, selection)); |
| } |
| |
| } |