| /******************************************************************************* |
| * Copyright (c) 2000, 2010 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.gef.ui.parts; |
| |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| |
| |
| import org.eclipse.gef.EditPartViewer; |
| |
| /** |
| * A adapter for an outline page containing a single EditPartViewer. This class |
| * handles selection processing and widget focus. There is no need to manage |
| * viewer lifecycle. When <code>dispose()</code> is called in the superclass, |
| * the EditPartViewer will receive widget dispose callback, and perform any |
| * necessary cleanup. This class is just an adapter. |
| * |
| * @author hudsonr |
| */ |
| public class ContentOutlinePage extends org.eclipse.ui.part.Page implements |
| org.eclipse.ui.views.contentoutline.IContentOutlinePage { |
| |
| private EditPartViewer viewer; |
| private Control control; |
| |
| /** |
| * Constructs a ContentOutlinePage for the given viewer. |
| * |
| * @param viewer |
| * the viewer |
| */ |
| public ContentOutlinePage(EditPartViewer viewer) { |
| this.viewer = viewer; |
| } |
| |
| /** |
| * @see ISelectionProvider#addSelectionChangedListener(ISelectionChangedListener) |
| */ |
| public void addSelectionChangedListener(ISelectionChangedListener listener) { |
| getViewer().addSelectionChangedListener(listener); |
| } |
| |
| /** |
| * Forwards the createControl request to the editpartviewer. |
| * |
| * @see org.eclipse.ui.part.IPage#createControl(org.eclipse.swt.widgets.Composite) |
| */ |
| public void createControl(Composite parent) { |
| control = getViewer().createControl(parent); |
| } |
| |
| /** |
| * @see org.eclipse.ui.part.IPage#getControl() |
| */ |
| public Control getControl() { |
| return control; |
| } |
| |
| /** |
| * Forwards selection request to the viewer. |
| * |
| * @see org.eclipse.jface.viewers.ISelectionProvider#getSelection() |
| */ |
| public ISelection getSelection() { |
| // $TODO when could this even happen? |
| if (getViewer() == null) |
| return StructuredSelection.EMPTY; |
| return getViewer().getSelection(); |
| } |
| |
| /** |
| * Returns the EditPartViewer |
| * |
| * @return the viewer |
| */ |
| protected EditPartViewer getViewer() { |
| return viewer; |
| } |
| |
| /** |
| * @see ISelectionProvider#removeSelectionChangedListener(ISelectionChangedListener) |
| */ |
| public void removeSelectionChangedListener( |
| ISelectionChangedListener listener) { |
| getViewer().removeSelectionChangedListener(listener); |
| } |
| |
| /** |
| * Sets focus to a part in the page. |
| */ |
| public void setFocus() { |
| if (getControl() != null) |
| getControl().setFocus(); |
| } |
| |
| /** |
| * @see ISelectionProvider#setSelection(org.eclipse.jface.viewers.ISelection) |
| */ |
| public void setSelection(ISelection selection) { |
| if (getViewer() != null) |
| getViewer().setSelection(selection); |
| } |
| |
| } |