/*******************************************************************************
 * Copyright (c) 2004 Actuate 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:
 *  Actuate Corporation  - initial API and implementation
 *******************************************************************************/

package org.eclipse.birt.report.designer.internal.ui.views.data.providers;

import org.eclipse.birt.report.designer.internal.ui.views.DefaultNodeProvider;
import org.eclipse.birt.report.designer.internal.ui.views.actions.EditAction;
import org.eclipse.birt.report.designer.nls.Messages;
import org.eclipse.birt.report.designer.ui.IReportGraphicConstants;
import org.eclipse.birt.report.designer.ui.dialogs.CascadingParametersDialog;
import org.eclipse.birt.report.model.api.CascadingParameterGroupHandle;
import org.eclipse.birt.report.model.api.DesignElementHandle;
import org.eclipse.birt.report.model.api.ReportElementHandle;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.ui.IWorkbenchActionConstants;
import org.eclipse.ui.PlatformUI;

/**
 * CascadingParameterGroupNodeProvider.
 */

public class CascadingParameterGroupNodeProvider extends DefaultNodeProvider
{

	public CascadingParameterGroupNodeProvider( )
	{
		super( );
	}

	public void createContextMenu( TreeViewer sourceViewer, Object object,
			IMenuManager menu )
	{
		super.createContextMenu( sourceViewer, object, menu );

		menu.insertAfter( IWorkbenchActionConstants.MB_ADDITIONS,
				new EditAction( object,
						Messages.getString( "ParameterGroupNodeProvider.Action.ParameterEdit" ) ) ); //$NON-NLS-1$

	}

	public String getIconName( Object model )
	{
		return IReportGraphicConstants.ICON_ELEMENT_PARAMETER_GROUP;
	}

	protected DesignElementHandle createElement( String type ) throws Exception
	{
		return null;
	}

	public Object[] getChildren( Object model )
	{
		return getChildrenBySlotHandle( ( (CascadingParameterGroupHandle) model ).getParameters( ) );
	}

	protected boolean performEdit( ReportElementHandle handle )
	{
		CascadingParametersDialog dialog = new CascadingParametersDialog( PlatformUI.getWorkbench( )
				.getDisplay( )
				.getActiveShell( ),
				Messages.getString("ParameterNodeProvider.dial.title.editCascading") ); //$NON-NLS-1$

		dialog.setInput( handle );

		return dialog.open( ) == Dialog.OK;
	}
}
