--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.jface.databinding/src/org/eclipse/jface/databinding/viewers/ObservableListContentProvider.d	Tue Apr 14 11:35:29 2009 +0200
@@ -0,0 +1,135 @@
+/*******************************************************************************
+ * Copyright (c) 2006-2008 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
+ *     Tom Schindl<tom.schindl@bestsolution.at> - bugfix in: 214355
+ *     Matthew Hall - bugs 215531, 226765
+ *******************************************************************************/
+
+module org.eclipse.jface.databinding.viewers.ObservableListContentProvider;
+
+import java.lang.all;
+
+import java.util.Set;
+
+import org.eclipse.core.databinding.observable.IObservableCollection;
+import org.eclipse.core.databinding.observable.list.IListChangeListener;
+import org.eclipse.core.databinding.observable.list.IObservableList;
+import org.eclipse.core.databinding.observable.list.ListChangeEvent;
+import org.eclipse.core.databinding.observable.list.ListDiffVisitor;
+import org.eclipse.core.databinding.observable.set.IObservableSet;
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.jface.internal.databinding.viewers.ObservableCollectionContentProvider;
+import org.eclipse.jface.internal.databinding.viewers.ViewerElementSet;
+import org.eclipse.jface.viewers.AbstractListViewer;
+import org.eclipse.jface.viewers.AbstractTableViewer;
+import org.eclipse.jface.viewers.IStructuredContentProvider;
+import org.eclipse.jface.viewers.Viewer;
+
+/**
+ * A {@link IStructuredContentProvider content provider} for
+ * {@link AbstractTableViewer} or {@link AbstractListViewer} that provides
+ * elements of an {@link IObservableList} when set as the viewer's input.
+ * Objects of this class listen for changes to the observable list, and will
+ * insert and remove viewer elements to reflect observed changes.
+ * 
+ * <p>
+ * This class is not intended to be subclassed by clients.
+ * 
+ * @since 1.1
+ */
+public class ObservableListContentProvider :
+        IStructuredContentProvider {
+    private ObservableCollectionContentProvider impl;
+
+    private static class Impl : ObservableCollectionContentProvider
+            , IListChangeListener {
+        protected void checkInput(Object input) {
+            Assert
+                    .isTrue(null !is cast(IObservableList)input,
+                            "This content provider only works with input of type IObservableList"); //$NON-NLS-1$
+        }
+
+        protected void addCollectionChangeListener(
+                IObservableCollection collection) {
+            (cast(IObservableList) collection).addListChangeListener(this);
+        }
+
+        protected void removeCollectionChangeListener(
+                IObservableCollection collection) {
+            (cast(IObservableList) collection).removeListChangeListener(this);
+        }
+
+        public void handleListChange(ListChangeEvent event) {
+            if (isViewerDisposed())
+                return;
+            final Set removals = ViewerElementSet.withComparer(comparer);
+
+            event.diff.accept(new class() ListDiffVisitor {
+                public void handleAdd(int index, Object element) {
+                    knownElements.add(element);
+                    viewerUpdater.insert(element, index);
+                }
+
+                public void handleRemove(int index, Object element) {
+                    viewerUpdater.remove(element, index);
+                    removals.add(element);
+                }
+
+                public void handleReplace(int index, Object oldElement,
+                        Object newElement) {
+                    knownElements.add(newElement);
+                    viewerUpdater.replace(oldElement, newElement, index);
+                    removals.add(oldElement);
+                }
+
+                public void handleMove(int oldIndex, int newIndex,
+                        Object element) {
+                    viewerUpdater.move(element, oldIndex, newIndex);
+                }
+            });
+
+            // For each removed element, do not remove from known elements if
+            // the element is still present elsewhere in the list.
+            removals.removeAll(event.getObservableList());
+            knownElements.removeAll(removals);
+        }
+    }
+
+    /**
+     * Constructs an ObservableListContentProvider
+     */
+    public this() {
+        impl = new Impl();
+    }
+
+    public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+        impl.inputChanged(viewer, oldInput, newInput);
+    }
+
+    public Object[] getElements(Object inputElement) {
+        return impl.getElements(inputElement);
+    }
+
+    public void dispose() {
+        impl.dispose();
+    }
+
+    /**
+     * Returns the set of elements known to this content provider. Label
+     * providers may track this set if they need to be notified about additions
+     * before the viewer sees the added element, and notified about removals
+     * after the element was removed from the viewer. This is intended for use
+     * by label providers, as it will always return the items that need labels.
+     * 
+     * @return readableSet of items that will need labels
+     */
+    public IObservableSet getKnownElements() {
+        return impl.getKnownElements();
+    }
+}