/*
* Licensed to "Neo Technology," Network Engine for Objects in Lund AB
* (http://neotechnology.com) under one or more contributor license agreements.
* See the NOTICE file distributed with this work for additional information
* regarding copyright ownership. Neo Technology licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of the License
* at (http://www.apache.org/licenses/LICENSE-2.0). Unless required by
* applicable law or agreed to in writing, software distributed under the
* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
* OF ANY KIND, either express or implied. See the License for the specific
* language governing permissions and limitations under the License.
*/
package org.neo4j.neoclipse.property.action;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.dnd.TextTransfer;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Shell;
import org.neo4j.graphdb.PropertyContainer;
import org.neo4j.neoclipse.action.Actions;
import org.neo4j.neoclipse.graphdb.GraphDbUtil;
import org.neo4j.neoclipse.property.NeoPropertySheetPage;
/**
* Action to add a new property to a PropertyContainer.
* @author Anders Nawroth
*/
public class PasteAction extends PropertyAction
{
private final Shell shell;
private static final TextTransfer TRANSFER_TYPE = TextTransfer
.getInstance();
public PasteAction( final Composite parent,
final NeoPropertySheetPage propertySheet )
{
super( Actions.PASTE, parent, propertySheet );
shell = propertySheet.getControl().getShell();
}
@Override
public void run()
{
PropertyContainer propertyContainer = getPropertyContainer();
if ( propertyContainer == null )
{
return;
}
performOperation( propertyContainer );
}
/**
* @param entry
* @param parFirstElement
*/
protected void performOperation( final PropertyContainer container )
{
// TODO handle the case where a key already exists?
Clipboard clipboard = new Clipboard( shell.getDisplay() );
Object data = clipboard.getContents( TRANSFER_TYPE );
clipboard.dispose();
if ( !(data instanceof String) )
{
MessageDialog.openError( shell, "Error",
"Could not paste content from the clipboard." );
return;
}
// parse the string
ClipboardUtil cu = new ClipboardUtil( (String) data );
final Object value = cu.getValue();
if ( value == null )
{
MessageDialog
.openError( shell, "Error",
"The clipboard content doesn't seem to be a neo4j property value." );
return;
}
final String key = cu.getKey();
GraphDbUtil.setProperty( container, key, value, propertySheet );
}
}