///*******************************************************************************
// * Copyright (c) 2005, 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.jface.util;
//
//
//import org.eclipse.core.runtime.IStatus;
//import org.eclipse.core.runtime.Status;
//import org.eclipse.jface.resource.JFaceResources;
//import org.eclipse.jface.viewers.ISelection;
//import org.eclipse.swt.dnd.ByteArrayTransfer;
//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 1.0
// */
//public class LocalSelectionTransfer extends ByteArrayTransfer {
//
// // First attempt to create a UUID for the type name to make sure that
// // different Eclipse applications use different "types" of
// // <code>LocalSelectionTransfer</code>
// private static final String TYPE_NAME = "local-selection-transfer-format" + (new Long(System.currentTimeMillis())).toString(); //$NON-NLS-1$;
//
// private static final int TYPEID = registerType(TYPE_NAME);
//
// private static final LocalSelectionTransfer INSTANCE = new LocalSelectionTransfer();
//
// private ISelection selection;
//
// private long selectionSetTime;
//
// /**
// * Only the singleton instance of this class may be used.
// */
// protected LocalSelectionTransfer() {
// // do nothing
// }
//
// /**
// * Returns the singleton.
// *
// * @return the singleton
// */
// public static LocalSelectionTransfer getTransfer() {
// return INSTANCE;
// }
//
// /**
// * Returns the local transfer data.
// *
// * @return the local transfer data
// */
// public ISelection getSelection() {
// return selection;
// }
//
// /**
// * Tests whether native drop data matches this transfer type.
// *
// * @param result result of converting the native drop data to Java
// * @return true if the native drop data does not match this transfer type.
// * false otherwise.
// */
// private boolean isInvalidNativeType(Object result) {
// return !(result instanceof byte[])
// || !TYPE_NAME.equals(new String((byte[]) result));
// }
//
// /**
// * Returns the type id used to identify this transfer.
// *
// * @return the type id used to identify this transfer.
// */
// protected int[] getTypeIds() {
// return new int[] { TYPEID };
// }
//
// /**
// * Returns the type name used to identify this transfer.
// *
// * @return the type name used to identify this transfer.
// */
// protected String[] getTypeNames() {
// return new String[] { TYPE_NAME };
// }
//
// /**
// * Overrides org.eclipse.swt.dnd.ByteArrayTransfer#javaToNative(Object,
// * TransferData).
// * Only encode the transfer type name since the selection is read and
// * written in the same process.
// *
// * @see org.eclipse.swt.dnd.ByteArrayTransfer#javaToNative(java.lang.Object, org.eclipse.swt.dnd.TransferData)
// */
// public void javaToNative(Object object, TransferData transferData) {
// byte[] check = TYPE_NAME.getBytes();
// super.javaToNative(check, transferData);
// }
//
// /**
// * Overrides org.eclipse.swt.dnd.ByteArrayTransfer#nativeToJava(TransferData).
// * Test if the native drop data matches this transfer type.
// *
// * @see org.eclipse.swt.dnd.ByteArrayTransfer#nativeToJava(TransferData)
// */
// public Object nativeToJava(TransferData transferData) {
// Object result = super.nativeToJava(transferData);
// if (isInvalidNativeType(result)) {
// Policy.getLog().log(new Status(
// IStatus.ERROR,
// Policy.JFACE,
// IStatus.ERROR,
// JFaceResources.getString("LocalSelectionTransfer.errorMessage"), null)); //$NON-NLS-1$
// }
// return selection;
// }
//
// /**
// * Sets the transfer data for local use.
// *
// * @param s the transfer data
// */
// public void setSelection(ISelection s) {
// selection = s;
// }
//
// /**
// * Returns the time when the selection operation
// * this transfer is associated with was started.
// *
// * @return the time when the selection operation has started
// *
// * @see org.eclipse.swt.events.TypedEvent#time
// */
// public long getSelectionSetTime() {
// return selectionSetTime;
// }
//
// /**
// * Sets the time when the selection operation this
// * transfer is associated with was started.
// * If assigning this from an SWT event, be sure to use
// * <code>setSelectionTime(event.time & 0xFFFF)</code>
// *
// * @param time the time when the selection operation was started
// *
// * @see org.eclipse.swt.events.TypedEvent#time
// */
// public void setSelectionSetTime(long time) {
// selectionSetTime = time;
// }
//}