/*******************************************************************************
* Copyright (c) 2007, 2016 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.dltk.internal.ui.dnd;
import org.eclipse.core.runtime.Assert;
import org.eclipse.dltk.internal.ui.scriptview.FileTransferDragAdapter;
import org.eclipse.dltk.internal.ui.scriptview.SelectionTransferDragAdapter;
import org.eclipse.jface.util.LocalSelectionTransfer;
import org.eclipse.jface.viewers.StructuredViewer;
import org.eclipse.swt.dnd.DND;
import org.eclipse.swt.dnd.FileTransfer;
import org.eclipse.swt.dnd.Transfer;
import org.eclipse.ui.part.ResourceTransfer;
public class DLTKViewerDragSupport {
private final StructuredViewer fViewer;
private final DLTKViewerDragAdapter fDragAdapter;
private boolean fStarted;
public DLTKViewerDragSupport(StructuredViewer viewer) {
fViewer= viewer;
fDragAdapter= new DLTKViewerDragAdapter(fViewer);
fDragAdapter.addDragSourceListener(new SelectionTransferDragAdapter(fViewer));
fDragAdapter.addDragSourceListener(new EditorInputTransferDragAdapter(viewer));
fDragAdapter.addDragSourceListener(new ResourceTransferDragAdapter(fViewer));
fDragAdapter.addDragSourceListener(new FileTransferDragAdapter(fViewer));
fStarted= false;
}
public void start() {
Assert.isLegal(!fStarted);
int ops= DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK;
Transfer[] transfers = new Transfer[] {
LocalSelectionTransfer.getTransfer(),
ResourceTransfer.getInstance(), FileTransfer.getInstance() };
fViewer.addDragSupport(ops, transfers, fDragAdapter);
fStarted= true;
}
}