// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// RemoveResourceFileAction

//

package com.symbian.smt.gui.smtwidgets.resources;

import java.util.HashMap;

import java.util.Iterator;

import org.eclipse.jface.viewers.ISelectionProvider;

import org.eclipse.jface.viewers.IStructuredSelection;

import org.eclipse.jface.viewers.ListViewer;

import org.eclipse.jface.viewers.StructuredSelection;

import org.eclipse.swt.widgets.Button;

import com.symbian.smt.gui.ResourcesEnums;

import com.symbian.smt.gui.smtwidgets.AbstractMultipleEntriesWidgetAction;

/**

 * This is the action that removes a command line option from the list of

 * assigned options.

 * 

 * @author barbararosi-schwartz

 * 

 */

class RemoveResourceFileAction extends AbstractMultipleEntriesWidgetAction {

	private ListViewer resourceTypesViewer;

	private HashMap<ResourcesEnums, java.util.List<CheckableResourceFilename>> resourceFilesMap;

	RemoveResourceFileAction(

			Button button,

			ISelectionProvider filesViewer,

			HashMap<ResourcesEnums, java.util.List<CheckableResourceFilename>> resourceFilesMap,

			ListViewer resourceTypesViewer) {

		super(filesViewer, "Remove", button);

		this.resourceFilesMap = resourceFilesMap;

		this.resourceTypesViewer = resourceTypesViewer;

		setEnabled(false);

	}

	/**

	 * Removes the selected filename from the model.

	 */

	@Override

	public void run() {

		StructuredSelection ssel = (StructuredSelection) getSelection();

		java.util.List<CheckableResourceFilename> checkableFilenames = ResourcesWidgetHelper

				.getCheckableResourceFilenames(ResourcesWidgetHelper

						.getSelectedResourceType(resourceTypesViewer),

						resourceFilesMap);

		@SuppressWarnings("unchecked")

		Iterator<CheckableResourceFilename> iter = ssel.iterator();

		while (iter.hasNext()) {

			CheckableResourceFilename to_be_removed = (CheckableResourceFilename) iter

					.next();

			checkableFilenames.remove(to_be_removed);

		}

	}

	/**

	 * Enabled if we have at least one selection in the list.

	 */

	@Override

	public void selectionChanged(IStructuredSelection selection) {

		if (selection.isEmpty()) {

			setEnabled(false);

			return;

		}

		setEnabled(true);

	}

}