/*
 * Copyright (c) 2006 Borland Software Corporation
 * 
 * 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:
 *    Dmitry Stadnik (Borland) - initial API and implementation
 */
package org.eclipse.gmf.map.editor.part;

import org.eclipse.emf.edit.ui.action.LoadResourceAction.LoadResourceDialog;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.gmf.map.editor.edit.parts.MappingEditPart;

/**
 * @generated
 */
public class GMFMapLoadResourceAction implements IObjectActionDelegate {

	/**
	 * @generated
	 */
	private MappingEditPart mySelectedElement;

	/**
	 * @generated
	 */
	private Shell myShell;

	/**
	 * @generated
	 */
	public void setActivePart(IAction action, IWorkbenchPart targetPart) {
		myShell = targetPart.getSite().getShell();
	}

	/**
	 * @generated
	 */
	public void run(IAction action) {
		LoadResourceDialog loadResourceDialog = new LoadResourceDialog(myShell, mySelectedElement.getEditingDomain());
		loadResourceDialog.open();
	}

	/**
	 * @generated
	 */
	public void selectionChanged(IAction action, ISelection selection) {
		mySelectedElement = null;
		if (selection instanceof IStructuredSelection) {
			IStructuredSelection structuredSelection = (IStructuredSelection) selection;
			if (structuredSelection.size() == 1 && structuredSelection.getFirstElement() instanceof MappingEditPart) {
				mySelectedElement = (MappingEditPart) structuredSelection.getFirstElement();
			}
		}
		action.setEnabled(isEnabled());
	}

	/**
	 * @generated
	 */
	private boolean isEnabled() {
		return mySelectedElement != null;
	}

}