| /******************************************************************************* |
| * Copyright (c) 2000, 2006 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.ui.views.navigator; |
| |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.swt.dnd.TransferData; |
| |
| /** |
| * A LocalSelectionTransfer may be used for drag and drop operations within the |
| * same instance of Eclipse. The selection is made available directly for use in |
| * the DropTargetListener. dropAccept method. The DropTargetEvent passed to |
| * dropAccept does not contain the drop data. The selection may be used for |
| * validation purposes so that the drop can be aborted if appropriate. This |
| * class is not intended to be subclassed. |
| * |
| * @since 2.1 |
| */ |
| public class LocalSelectionTransfer extends |
| org.eclipse.jface.util.LocalSelectionTransfer { |
| |
| private static final LocalSelectionTransfer INSTANCE = new LocalSelectionTransfer(); |
| |
| /** |
| * The get/set methods delegate to JFace's LocalSelectionTransfer to allow |
| * data to be exchanged freely whether the client uses this |
| * LocalSelectionTransfer or JFace's LocalSelectionTransfer. Protected |
| * methods such as getTypeIds() are handled via inheritance, not delegation |
| * due to visibility constraints. |
| */ |
| private org.eclipse.jface.util.LocalSelectionTransfer jfaceTransfer = org.eclipse.jface.util.LocalSelectionTransfer |
| .getTransfer(); |
| |
| /** |
| * Only the singleton instance of this class may be used. |
| */ |
| private LocalSelectionTransfer() { |
| } |
| |
| /** |
| * Returns the singleton. |
| * |
| * @return the singleton |
| */ |
| public static LocalSelectionTransfer getInstance() { |
| return INSTANCE; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.util.LocalSelectionTransfer#getSelection() |
| */ |
| public ISelection getSelection() { |
| return jfaceTransfer.getSelection(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.util.LocalSelectionTransfer#getSelectionSetTime() |
| */ |
| public long getSelectionSetTime() { |
| return jfaceTransfer.getSelectionSetTime(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.util.LocalSelectionTransfer#setSelection(org.eclipse.jface.viewers.ISelection) |
| */ |
| public void setSelection(ISelection s) { |
| jfaceTransfer.setSelection(s); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.util.LocalSelectionTransfer#setSelectionSetTime(long) |
| */ |
| public void setSelectionSetTime(long time) { |
| jfaceTransfer.setSelectionSetTime(time); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.util.LocalSelectionTransfer#javaToNative(java.lang.Object, org.eclipse.swt.dnd.TransferData) |
| */ |
| public void javaToNative(Object object, TransferData transferData) { |
| jfaceTransfer.javaToNative(object, transferData); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.util.LocalSelectionTransfer#nativeToJava(org.eclipse.swt.dnd.TransferData) |
| */ |
| public Object nativeToJava(TransferData transferData) { |
| return jfaceTransfer.nativeToJava(transferData); |
| } |
| } |