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/*******************************************************************************
* Copyright (c) 2011, 2012 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.tcf.filesystem.ui.internal.handlers;
import java.util.List;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.dnd.DND;
import org.eclipse.swt.dnd.FileTransfer;
import org.eclipse.tcf.te.runtime.callback.Callback;
import org.eclipse.tcf.te.tcf.filesystem.core.interfaces.IOperation;
import org.eclipse.tcf.te.tcf.filesystem.core.internal.operations.IOpExecutor;
import org.eclipse.tcf.te.tcf.filesystem.core.internal.operations.OpCopy;
import org.eclipse.tcf.te.tcf.filesystem.core.internal.operations.OpMove;
import org.eclipse.tcf.te.tcf.filesystem.core.model.FSTreeNode;
import org.eclipse.tcf.te.tcf.filesystem.ui.activator.UIPlugin;
import org.eclipse.tcf.te.tcf.filesystem.ui.internal.dnd.CommonDnD;
import org.eclipse.tcf.te.tcf.filesystem.ui.internal.operations.FsClipboard;
import org.eclipse.tcf.te.tcf.filesystem.ui.internal.operations.UiExecutor;
import org.eclipse.ui.handlers.HandlerUtil;
/**
* The handler that pastes the files or folders in the clip board.
*/
public class PasteFilesHandler extends AbstractHandler {
/*
* (non-Javadoc)
* @see
* org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*/
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
FsClipboard cb = UIPlugin.getClipboard();
if (!cb.isEmpty()) {
// Get the files/folders from the clip board.
IStructuredSelection selection = (IStructuredSelection) HandlerUtil.getCurrentSelectionChecked(event);
List<FSTreeNode> nodes = cb.getFiles();
IOpExecutor executor = null;
IOperation operation = null;
if (cb.isCutOp()) {
FSTreeNode dest = (FSTreeNode) selection.getFirstElement();
operation = new OpMove(nodes, dest, new MoveCopyCallback());
executor = new UiExecutor(new Callback(){
@Override
protected void internalDone(Object caller, IStatus status) {
UIPlugin.getClipboard().clear();
}
});
}
else if (cb.isCopyOp()) {
FSTreeNode hovered = (FSTreeNode) selection.getFirstElement();
FSTreeNode dest = getCopyDestination(hovered, nodes);
boolean cpPerm = UIPlugin.isCopyPermission();
boolean cpOwn = UIPlugin.isCopyOwnership();
operation = new OpCopy(nodes, dest, cpPerm, cpOwn, new MoveCopyCallback());
executor = new UiExecutor();
}
if (executor != null && operation != null) {
executor.execute(operation);
}
}
else {
Clipboard clipboard = cb.getSystemClipboard();
Object contents = clipboard.getContents(FileTransfer.getInstance());
if (contents != null) {
String[] files = (String[]) contents;
// Get the files/folders from the clip board.
IStructuredSelection selection = (IStructuredSelection) HandlerUtil
.getCurrentSelectionChecked(event);
FSTreeNode hovered = (FSTreeNode) selection.getFirstElement();
CommonDnD dnd = new CommonDnD();
dnd.dropFiles(null, files, DND.DROP_COPY, hovered);
}
}
return null;
}
/**
* Return an appropriate destination directory for copying according to
* the specified hovered node. If the hovered node is a file, then return
* its parent directory. If the hovered node is a directory, then return its
* self if it is not a node being copied. Return its parent directory if it is
* a node being copied.
* @param hovered
* @param nodes
* @return
*/
private FSTreeNode getCopyDestination(FSTreeNode hovered, List<FSTreeNode> nodes) {
if (hovered.isFile()) {
return hovered.getParent();
}
else if (hovered.isDirectory()) {
for (FSTreeNode node : nodes) {
if (node == hovered) {
return hovered.getParent();
}
}
}
return hovered;
}
}
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