| /******************************************************************************* |
| * 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, 278550 |
| ******************************************************************************/ |
| |
| package org.eclipse.core.internal.databinding.property; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.core.databinding.observable.ObservableTracker; |
| import org.eclipse.core.databinding.observable.Realm; |
| import org.eclipse.core.databinding.observable.list.IObservableList; |
| import org.eclipse.core.databinding.observable.list.ListDiff; |
| import org.eclipse.core.databinding.observable.list.ListDiffVisitor; |
| import org.eclipse.core.databinding.observable.value.IObservableValue; |
| import org.eclipse.core.databinding.property.list.IListProperty; |
| import org.eclipse.core.databinding.property.list.ListProperty; |
| import org.eclipse.core.databinding.property.value.IValueProperty; |
| |
| /** |
| * @since 3.3 |
| * |
| */ |
| public class ListPropertyDetailValuesList extends ListProperty { |
| private final IListProperty masterProperty; |
| private final IValueProperty detailProperty; |
| |
| /** |
| * @param masterProperty |
| * @param detailProperty |
| */ |
| public ListPropertyDetailValuesList(IListProperty masterProperty, |
| IValueProperty detailProperty) { |
| this.masterProperty = masterProperty; |
| this.detailProperty = detailProperty; |
| } |
| |
| public Object getElementType() { |
| return detailProperty.getValueType(); |
| } |
| |
| protected List doGetList(Object source) { |
| List masterList = masterProperty.getList(source); |
| List detailList = new ArrayList(masterList.size()); |
| for (Iterator it = masterList.iterator(); it.hasNext();) |
| detailList.add(detailProperty.getValue(it.next())); |
| return detailList; |
| } |
| |
| protected void doUpdateList(Object source, ListDiff diff) { |
| final List masterList = masterProperty.getList(source); |
| diff.accept(new ListDiffVisitor() { |
| public void handleAdd(int index, Object element) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public void handleRemove(int index, Object element) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public void handleMove(int oldIndex, int newIndex, Object element) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public void handleReplace(int index, Object oldElement, |
| Object newElement) { |
| detailProperty.setValue(masterList.get(index), newElement); |
| } |
| }); |
| } |
| |
| public IObservableList observe(Realm realm, Object source) { |
| IObservableList masterList; |
| |
| ObservableTracker.setIgnore(true); |
| try { |
| masterList = masterProperty.observe(realm, source); |
| } finally { |
| ObservableTracker.setIgnore(false); |
| } |
| |
| IObservableList detailList = detailProperty.observeDetail(masterList); |
| PropertyObservableUtil.cascadeDispose(detailList, masterList); |
| return detailList; |
| } |
| |
| public IObservableList observeDetail(IObservableValue master) { |
| IObservableList masterList; |
| |
| ObservableTracker.setIgnore(true); |
| try { |
| masterList = masterProperty.observeDetail(master); |
| } finally { |
| ObservableTracker.setIgnore(false); |
| } |
| |
| IObservableList detailList = detailProperty.observeDetail(masterList); |
| PropertyObservableUtil.cascadeDispose(detailList, masterList); |
| return detailList; |
| } |
| |
| public String toString() { |
| return masterProperty + " => " + detailProperty; //$NON-NLS-1$ |
| } |
| } |