org.eclipse.jpt.jpadiagrameditor.ui.internal.feature.RestoreEntityFeature.java Source code

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Here is the source code for org.eclipse.jpt.jpadiagrameditor.ui.internal.feature.RestoreEntityFeature.java

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/*******************************************************************************
 * <copyright>
 *
 * Copyright (c) 2005, 2010 SAP AG.
 * 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:
 *    Stefan Dimov - initial API, implementation and documentation
 *
 * </copyright>
 *
 *******************************************************************************/
package org.eclipse.jpt.jpadiagrameditor.ui.internal.feature;

import org.eclipse.graphiti.features.IFeatureProvider;
import org.eclipse.graphiti.features.context.ICustomContext;
import org.eclipse.graphiti.features.custom.AbstractCustomFeature;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jpt.jpa.core.context.PersistentType;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.i18n.JPAEditorMessages;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.provider.IJPAEditorFeatureProvider;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.util.JPAEditorUtil;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.util.JpaArtifactFactory;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.ui.PlatformUI;

public class RestoreEntityFeature extends AbstractCustomFeature {

    public RestoreEntityFeature(IFeatureProvider fp) {
        super(fp);
    }

    @Override
    public boolean canExecute(ICustomContext context) {
        return true;
    }

    public void execute(ICustomContext context) {
        PersistentType jpt = (PersistentType) getFeatureProvider()
                .getBusinessObjectForPictogramElement(context.getPictogramElements()[0]);
        if (JPAEditorUtil.isEntityOpenElsewhere(jpt, true)) {
            String shortEntName = JPAEditorUtil.returnSimpleName(JpaArtifactFactory.instance().getEntityName(jpt));
            String message = NLS.bind(JPAEditorMessages.JPASolver_closeWarningMsg, shortEntName);
            MessageDialog dialog = new MessageDialog(
                    PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(),
                    JPAEditorMessages.JPASolver_closeEditors, null, message, MessageDialog.WARNING,
                    new String[] { JPAEditorMessages.BTN_OK }, 0) {
                @Override
                protected int getShellStyle() {
                    return SWT.CLOSE | SWT.TITLE | SWT.BORDER | SWT.APPLICATION_MODAL | getDefaultOrientation();
                }
            };
            dialog.open();
            return;
        }
        JpaArtifactFactory.instance().restoreEntityClass(jpt, getFeatureProvider());
    }

    @Override
    public IJPAEditorFeatureProvider getFeatureProvider() {
        return (IJPAEditorFeatureProvider) super.getFeatureProvider();
    }

    @Override
    public String getName() {
        return JPAEditorMessages.JPAEditorToolBehaviorProvider_discardChangesMenuItem;
    }

}