DisposeConnectorAction.java

package org.csstudio.dal.ui.internal.connectionview;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.csstudio.platform.simpledal.IConnector;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;

/**
 * Action that dispose all currently selected connectors.
 * 
 * @author Sven Wende
 * 
 */
public class DisposeConnectorAction implements IObjectActionDelegate {

	private List<IConnector> _selectedConnectors;

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void setActivePart(IAction action, IWorkbenchPart targetPart) {

	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void run(IAction action) {
		if(_selectedConnectors!=null) {
			for(IConnector c : _selectedConnectors) {
				c.forceDispose();
			}
		}
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void selectionChanged(IAction action, ISelection selection) {
		if (selection != null && selection instanceof IStructuredSelection) {
			IStructuredSelection sel = (IStructuredSelection) selection;

			_selectedConnectors = new ArrayList<IConnector>();

			Iterator it = sel.iterator();

			while (it.hasNext()) {
				Object o = it.next();

				if (o instanceof IConnector) {
					_selectedConnectors.add((IConnector) o);
				}
			}
		}
	}

}