PasteAction.java

/*
 * ====================================================================
 * 
 * The ObjectStyle Group Software License, Version 1.0
 * 
 * Copyright (c) 2006 The ObjectStyle Group and individual authors of the
 * software. All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 
 * 3. The end-user documentation included with the redistribution, if any, must
 * include the following acknowlegement: "This product includes software
 * developed by the ObjectStyle Group (http://objectstyle.org/)." Alternately,
 * this acknowlegement may appear in the software itself, if and wherever such
 * third-party acknowlegements normally appear.
 * 
 * 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse or
 * promote products derived from this software without prior written permission.
 * For written permission, please contact andrus@objectstyle.org.
 * 
 * 5. Products derived from this software may not be called "ObjectStyle" nor
 * may "ObjectStyle" appear in their names without prior written permission of
 * the ObjectStyle Group.
 * 
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * OBJECTSTYLE GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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 * ====================================================================
 * 
 * This software consists of voluntary contributions made by many individuals on
 * behalf of the ObjectStyle Group. For more information on the ObjectStyle
 * Group, please see <http://objectstyle.org/>.
 *  
 */
package org.objectstyle.wolips.eomodeler.actions;

import java.util.Arrays;

import org.eclipse.core.commands.operations.IOperationHistory;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.util.LocalSelectionTransfer;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.PlatformUI;
import org.objectstyle.wolips.baseforuiplugins.utils.ErrorUtils;
import org.objectstyle.wolips.eomodeler.core.model.EOModelObject;
import org.objectstyle.wolips.eomodeler.core.utils.EOModelUtils;

public class PasteAction extends EMAction {
	public void run() {
		try {
			Control focusControl = Display.getCurrent().getFocusControl();
			// Is this a copy for the viewer? styled text? or regular text?
			if (focusControl instanceof Text) {
				((Text) focusControl).paste();
				return;
			} else if (focusControl instanceof StyledText) {
				((StyledText) focusControl).paste();
				return;
			}

			EOModelObject selectedObject = (EOModelObject) getSelectedObject();
			ISelection pastedSelection = LocalSelectionTransfer.getTransfer().getSelection();
			if (pastedSelection != null) {
				Object[] clipboardObjects = ((IStructuredSelection) pastedSelection).toArray();
				Arrays.sort(clipboardObjects, new PasteOrderComparator());

				SimpleCompositeOperation pasteOperation = new SimpleCompositeOperation(EOModelUtils.getOperationLabel("Paste", Arrays.asList(clipboardObjects)));
				for (Object clipboardObject : clipboardObjects) {
					if (clipboardObject instanceof EOModelObject) {
						EOModelObject eoModelObject = (EOModelObject) clipboardObject;
						Class<EOModelObject> modelParentClass = eoModelObject._getModelParentType();
						EOModelObject pasteIntoObject = EOModelUtils.getRelated(modelParentClass, selectedObject);
						if (pasteIntoObject != null) {
							EOModelObject clonedPasteObject = eoModelObject._cloneModelObject();
							pasteOperation.add(new AddOperation(pasteIntoObject, clonedPasteObject));
						}
					}
				}

				pasteOperation.addContext(EOModelUtils.getUndoContext(selectedObject));
				IOperationHistory operationHistory = PlatformUI.getWorkbench().getOperationSupport().getOperationHistory();
				operationHistory.execute(pasteOperation, null, null);
			}
		} catch (Throwable t) {
			ErrorUtils.openErrorDialog(Display.getDefault().getActiveShell(), t);
		}
	}

	public void runWithEvent(Event event) {
		run();
	}

	public void run(IAction action) {
		run();
	}
}