/* 
 * Copyright (c) 2008 Stiftung Deutsches Elektronen-Synchrotron, 
 * Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY.
 *
 * THIS SOFTWARE IS PROVIDED UNDER THIS LICENSE ON AN "../AS IS" BASIS. 
 * WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED 
 * TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE AND 
 * NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE 
 * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR 
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. SHOULD THE SOFTWARE PROVE DEFECTIVE 
 * IN ANY RESPECT, THE USER ASSUMES THE COST OF ANY NECESSARY SERVICING, REPAIR OR 
 * CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. 
 * NO USE OF ANY SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
 * DESY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, 
 * OR MODIFICATIONS.
 * THE FULL LICENSE SPECIFYING FOR THE SOFTWARE THE REDISTRIBUTION, MODIFICATION, 
 * USAGE AND OTHER RIGHTS AND OBLIGATIONS IS INCLUDED WITH THE DISTRIBUTION OF THIS 
 * PROJECT IN THE FILE LICENSE.HTML. IF THE LICENSE IS NOT INCLUDED YOU MAY FIND A COPY 
 * AT HTTP://WWW.DESY.DE/LEGAL/LICENSE.HTM
 */
 package org.csstudio.sds.ui.internal.properties.view;

import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.PlatformUI;

/**
 * Removes dynamic aspects of a property.
 */
final class RemoveDynamicAspectsAction extends
		PropertySheetAction {
	/**
	 * Creates the action.
	 * 
	 * @param viewer
	 *            the viewer
	 * @param name
	 *            the name
	 */
	public RemoveDynamicAspectsAction(final PropertySheetViewer viewer, final String name) {
		super(viewer, name);
		PlatformUI.getWorkbench().getHelpSystem().setHelp(this,
				IPropertiesHelpContextIds.COPY_PROPERTY_ACTION);
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void run() {
		// Get the selected property
		IStructuredSelection selection = (IStructuredSelection) getPropertySheet()
				.getSelection();
		if (selection.isEmpty()) {
			return;
		}

		// Assume single selection
		IPropertySheetEntry entry = (IPropertySheetEntry) selection
				.getFirstElement();

		
		// Open Wizard
		if (entry != null) {
			entry.applyDynamicsDescriptor(null);
		}
	}

	/**
	 * Updates enablement based on the current selection.
	 * 
	 * @param sel
	 *            the selection
	 */
	public void selectionChanged(final IStructuredSelection sel) {
		setEnabled(!sel.isEmpty());
	}
}