| /****************************************************************************** |
| * Copyright (c) 2002, 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.gmf.runtime.common.ui.services.dnd.drag; |
| |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.swt.dnd.DragSourceEvent; |
| import org.eclipse.ui.IWorkbenchPart; |
| |
| /** |
| * Concrete implementation of <code>IDragSourceContext</code> |
| * |
| * @author Vishy Ramaswamy |
| */ |
| public class DragSourceContext |
| implements IDragSourceContext { |
| |
| /** |
| * Attribute for the active part. |
| */ |
| private final IWorkbenchPart activePart; |
| |
| /** |
| * Constructor for DragSourceContext. |
| * |
| * @param anActivePart |
| * active IWorkbenchPart |
| */ |
| public DragSourceContext(IWorkbenchPart anActivePart) { |
| super(); |
| |
| assert null != anActivePart : "anActivePart cannot be null"; //$NON-NLS-1$ |
| this.activePart = anActivePart; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.gmf.runtime.common.ui.services.dnd.drag.IDragSourceContext#getSelection() |
| */ |
| public ISelection getSelection() { |
| return getActivePart().getSite().getSelectionProvider().getSelection(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.gmf.runtime.common.ui.services.dnd.drag.IDragSourceContext#getActivePart() |
| */ |
| public final IWorkbenchPart getActivePart() { |
| return activePart; |
| } |
| |
| /** |
| * Sets the data of the given DragSourceEvent |
| * |
| * @param event |
| * the DragSourceEvent to have its data set |
| * |
| * @see org.eclipse.swt.dnd.DragSourceListener#dragSetData(org.eclipse.swt.dnd.DragSourceEvent) |
| */ |
| protected void dragSetData(DragSourceEvent event) { |
| event.data = null; |
| } |
| |
| /** |
| * Drag operation started. |
| * |
| * @param event |
| * the DragSouceEvent to be updated |
| * @see org.eclipse.swt.dnd.DragSourceListener#dragStart(org.eclipse.swt.dnd.DragSourceEvent) |
| */ |
| protected void dragStart(DragSourceEvent event) { |
| event.doit = false; |
| } |
| |
| /** |
| * Drag operation finished. |
| * |
| * @param event |
| * the DragSouceEvent to be updated |
| * @see org.eclipse.swt.dnd.DragSourceListener#dragFinished(org.eclipse.swt.dnd.DragSourceEvent) |
| */ |
| protected void dragFinished(DragSourceEvent event) { |
| /* method not implemented */ |
| } |
| } |