/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.ui.tests.refactoring.infra;

import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import org.eclipse.swt.SWT;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.dnd.DND;
import org.eclipse.swt.dnd.Transfer;
import org.eclipse.swt.dnd.TransferData;
import org.eclipse.swt.widgets.Display;


//have to create this class because of bug 40095
public class MockClipboard extends Clipboard{

	private Map fContents; //Transfer -> Object
	 
	public MockClipboard(Display display) {
		super(display);
		fContents= new HashMap();
	}

	protected void checkSubclass() {
		//do nothing
	}
	
	public TransferData[] getAvailableTypes() {
		Set result= new HashSet();
		for (Iterator iter= fContents.keySet().iterator(); iter.hasNext();) {
			Transfer transfer= (Transfer)iter.next();
			result.addAll(Arrays.asList(transfer.getSupportedTypes()));
		}
		return (TransferData[]) result.toArray(new TransferData[result.size()]);
	}
	
	public Object getContents(Transfer transfer) {
		return fContents.get(transfer);		
	}
	
	public void setContents(Object[] data, Transfer[] dataTypes) {
		if (data == null || dataTypes == null || data.length != dataTypes.length) {
			DND.error(SWT.ERROR_INVALID_ARGUMENT);
		}
		fContents.clear();
		for (int i= 0; i < dataTypes.length; i++) {
			fContents.put(dataTypes[i], data[i]);
		}
	}
	
	public void dispose() {
		fContents.clear();
		super.dispose();
	}
}