/* $Id: UMLCallEventOperationComboBoxModel.java 18691 2010-08-28 00:41:40Z bobtarling $
 *****************************************************************************
 * Copyright (c) 2009-2010 Contributors - see below
 * 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:
 *    Bob Tarling
 *****************************************************************************
 *
 * Some portions of this file was previously release using the BSD License:
 */

// Copyright (c) 2008 The Regents of the University of California. All
// Rights Reserved. Permission to use, copy, modify, and distribute this
// software and its documentation without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph appear in all copies. This software program and
// documentation are copyrighted by The Regents of the University of
// California. The software program and documentation are supplied "AS
// IS", without any accompanying services from The Regents. The Regents
// does not warrant that the operation of the program will be
// uninterrupted or error-free. The end-user understands that the program
// was developed for research purposes and is advised not to rely
// exclusively on the program for any reason. IN NO EVENT SHALL THE
// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
// CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,
// UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

package org.argouml.core.propertypanels.ui;

import java.awt.event.ActionEvent;
import java.util.ArrayList;
import java.util.Collection;

import javax.swing.Action;

import org.argouml.model.Model;
import org.argouml.ui.UndoableAction;

class UMLCallEventOperationComboBoxModel extends UMLComboBoxModel {
    
    /**
     * The class uid
     */
    private static final long serialVersionUID = 2793208767387711088L;

    /**
     * The constructor.
     */
    public UMLCallEventOperationComboBoxModel(
            final String propertyName,
            final Object target) {
        super(target, propertyName, true);
    }

    /*
     * @see org.argouml.uml.ui.UMLComboBoxModel#buildModelList()
     */
    protected void buildModelList() {
        Object target = getTarget();
        Collection ops = new ArrayList();
        if (Model.getFacade().isACallEvent(target)) {
            Object ns = Model.getFacade().getNamespace(target);
            if (Model.getFacade().isAClassifier(ns)) {
                ns = Model.getFacade().getNamespace(ns);
            }
            Collection classifiers =
                Model.getModelManagementHelper().getAllModelElementsOfKind(
                        ns,
                        Model.getMetaTypes().getClassifier());
            for (Object classifier : classifiers) {
                ops.addAll(Model.getFacade().getOperations(classifier));
            }
            
            // TODO: getAllModelElementsOfKind should probably do this
            // processing of imported elements automatically
            for (Object importedElem : Model.getModelManagementHelper()
                    .getAllImportedElements(ns)) {
                if (Model.getFacade().isAClassifier(importedElem)) {
                    ops.addAll(Model.getFacade()
                            .getOperations(importedElem));
                }
            }
        }
        setElements(ops);
    }

    /*
     * @see org.argouml.uml.ui.UMLComboBoxModel#getSelectedModelElement()
     */
    protected Object getSelectedModelElement() {
        Object target = getTarget();
        if (Model.getFacade().isACallEvent(target)) {
            return Model.getFacade().getOperation(target);
        }
        return null;
    }

    /*
     * @see org.argouml.uml.ui.UMLComboBoxModel#isValidElement(java.lang.Object)
     */
    protected boolean isValidElement(Object element) {
        Object target = getTarget();
        if (Model.getFacade().isACallEvent(target)) {
            return element == Model.getFacade().getOperation(target);
        }
        return false;
    }
    
    public Action getAction() {
        return new SetAction();
    }
    
    private class SetAction extends UndoableAction {

        /**
         * The constructor.
         */
        public SetAction() {
            super("");
        }

        /*
         * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
         */
        public void actionPerformed(ActionEvent e) {
            super.actionPerformed(e);
            final Object source = e.getSource();
            if (source instanceof UMLComboBox) {
                final Object selected = ((UMLComboBox) source).getSelectedItem();
                final Object target = ((UMLComboBox) source).getTarget();
                if (Model.getFacade().isACallEvent(target) 
                    && Model.getFacade().isAOperation(selected)) {
                    if (Model.getFacade().getOperation(target) != selected) {
                        Model.getCommonBehaviorHelper().setOperation(
                                target, selected);
                    }
                }
            }
        }
    }    
}