| /******************************************************************************* |
| * Copyright (c) 2008, 2010 Matthew Hall 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: |
| * Matthew Hall - initial API and implementation (bug 194734) |
| * Matthew Hall - bugs 195222, 263413, 265561 |
| * Ovidio Mallo - bug 270494 |
| ******************************************************************************/ |
| |
| package org.eclipse.jface.internal.databinding.viewers; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.eclipse.core.databinding.observable.list.ListDiff; |
| import org.eclipse.core.databinding.property.INativePropertyListener; |
| import org.eclipse.core.databinding.property.ISimplePropertyListener; |
| import org.eclipse.jface.databinding.viewers.ViewerListProperty; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| /** |
| * Use this when the source is a viewer. If the source is a ISelectionProvider |
| * but not a viewer then use SelectionProviderMultipleSelectionProperty. |
| * |
| * @param <S> |
| * @since 3.3 |
| * |
| */ |
| public class SelectionProviderMultipleViewerSelectionProperty<S extends ISelectionProvider> |
| extends ViewerListProperty<Viewer> { |
| |
| private final boolean isPostSelection; |
| |
| /** |
| * Constructor. |
| * |
| * @param isPostSelection |
| * Whether the post selection or the normal selection is to be |
| * observed. |
| */ |
| public SelectionProviderMultipleViewerSelectionProperty( |
| boolean isPostSelection) { |
| this.isPostSelection = isPostSelection; |
| } |
| |
| public Object getElementType() { |
| return Object.class; |
| } |
| |
| public Class<Object> getElementClass() { |
| return Object.class; |
| } |
| |
| protected List<Object> doGetList(Viewer source) { |
| ISelection selection = source.getSelection(); |
| if (selection instanceof IStructuredSelection) { |
| ArrayList<Object> result = new ArrayList<Object>(); |
| for (Object element : ((IStructuredSelection) selection).toList()) { |
| result.add(element); |
| } |
| return result; |
| } |
| return Collections.emptyList(); |
| } |
| |
| protected void doSetList(Viewer source, List<Object> list, |
| ListDiff<Object> diff) { |
| doSetList(source, list); |
| } |
| |
| protected void doSetList(Viewer source, List<Object> list) { |
| source.setSelection(new StructuredSelection(list)); |
| } |
| |
| public INativePropertyListener<Viewer> adaptListener( |
| ISimplePropertyListener<ListDiff<Object>> listener) { |
| return new SelectionChangedListener<Viewer, ListDiff<Object>>(this, |
| listener, isPostSelection); |
| } |
| |
| public String toString() { |
| return isPostSelection ? "IPostSelectionProvider.postSelection[]" //$NON-NLS-1$ |
| : "ISelectionProvider.selection[]"; //$NON-NLS-1$ |
| } |
| } |