| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.wst.common.ui.provisional.editors; |
| |
| import org.eclipse.jface.viewers.IPostSelectionProvider; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.jface.viewers.SelectionChangedEvent; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.part.MultiPageEditorPart; |
| import org.eclipse.ui.part.MultiPageEditorSite; |
| |
| /** |
| * @deprecated - No longer necessary as of 3.2M3. |
| */ |
| public class PostMultiPageEditorSite extends MultiPageEditorSite { |
| /** |
| * The post selection change listener, initialized lazily; |
| * <code>null</code> if not yet created. |
| */ |
| private ISelectionChangedListener postSelectionChangedListener = null; |
| |
| public PostMultiPageEditorSite(MultiPageEditorPart multiPageEditor, IEditorPart editor) { |
| super(multiPageEditor, editor); |
| } |
| |
| /** |
| * Returns the selection changed listener which listens to the nested |
| * editor's post selection changes, and calls |
| * <code>handlePostSelectionChanged</code>. |
| * |
| * @return the selection changed listener |
| */ |
| private ISelectionChangedListener getPostSelectionChangedListener() { |
| if (postSelectionChangedListener == null) { |
| postSelectionChangedListener = new ISelectionChangedListener() { |
| public void selectionChanged(SelectionChangedEvent event) { |
| PostMultiPageEditorSite.this.handlePostSelectionChanged(event); |
| } |
| }; |
| } |
| return postSelectionChangedListener; |
| } |
| |
| /** |
| * Handles a post selection changed event from the nested editor. The |
| * default implementation gets the selection provider from the multi-page |
| * editor's site, and calls <code>firePostSelectionChanged</code> on it |
| * (only if it is an instance of <code>MultiPageSelectionProvider</code>), |
| * passing a new event object. |
| * <p> |
| * Subclasses may extend or reimplement this method. |
| * </p> |
| * |
| * @param event |
| * the event |
| */ |
| protected void handlePostSelectionChanged(SelectionChangedEvent event) { |
| ISelectionProvider parentProvider = getMultiPageEditor().getSite().getSelectionProvider(); |
| if (parentProvider instanceof PostMultiPageSelectionProvider) { |
| SelectionChangedEvent newEvent = new SelectionChangedEvent(parentProvider, event.getSelection()); |
| ((PostMultiPageSelectionProvider) parentProvider).firePostSelectionChanged(newEvent); |
| } |
| } |
| |
| /** |
| * The <code>MultiPageEditorSite</code> implementation of this |
| * <code>IWorkbenchPartSite</code> method remembers the selection |
| * provider, and also hooks a listener on it, which calls |
| * <code>handleSelectionChanged</code> when a selection changed event |
| * occurs and <code>handlePostSelectionChanged</code> when a post |
| * selection changed event occurs. |
| * |
| * @param provider |
| * The selection provider. |
| * @see PostMultiPageEditorSite#handleSelectionChanged(SelectionChangedEvent) |
| */ |
| public void setSelectionProvider(ISelectionProvider provider) { |
| ISelectionProvider oldSelectionProvider = getSelectionProvider(); |
| if (oldSelectionProvider != null) { |
| if (oldSelectionProvider instanceof IPostSelectionProvider) { |
| ((IPostSelectionProvider) oldSelectionProvider).removePostSelectionChangedListener(getPostSelectionChangedListener()); |
| } |
| } |
| |
| super.setSelectionProvider(provider); |
| |
| if (provider != null) { |
| if (provider instanceof IPostSelectionProvider) { |
| ((IPostSelectionProvider) provider).addPostSelectionChangedListener(getPostSelectionChangedListener()); |
| } |
| } |
| } |
| |
| } |