| /**************************************************************************** |
| * Copyright (c) 2004 Composent, Inc. and others. |
| * 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: |
| * Composent, Inc. - initial API and implementation |
| *****************************************************************************/ |
| |
| package org.eclipse.ecf.presence.ui.roster; |
| |
| import org.eclipse.ecf.core.IContainer; |
| import org.eclipse.ecf.presence.IPresenceContainerAdapter; |
| import org.eclipse.ecf.presence.roster.IRosterEntry; |
| import org.eclipse.ecf.presence.roster.IRosterGroup; |
| |
| /** |
| * Abstract contribution item class for creating menu contribution items for |
| * roster entries. Subclasses should be created as appropriate. |
| */ |
| public abstract class AbstractRosterGroupContributionItem extends AbstractPresenceContributionItem { |
| |
| public AbstractRosterGroupContributionItem() { |
| super(null); |
| } |
| |
| public AbstractRosterGroupContributionItem(String id) { |
| super(id); |
| } |
| |
| /** |
| * Get the currently selected IRosterGroup. |
| * |
| * @return IRosterGroup that is current workbenchwindow selection. Returns |
| * <code>null</code> if nothing is selected or if something other |
| * than IRosterGroup is selected. |
| */ |
| protected IRosterGroup getSelectedRosterGroup() { |
| Object selection = getSelection(); |
| if (selection instanceof IRosterEntry) |
| return (IRosterGroup) selection; |
| return null; |
| } |
| |
| /** |
| * Get container for the given IRosterGroup. |
| * |
| * @param group |
| * the IRosterGroup. May be <code>null</code>. |
| * |
| * @return IContainer associated with currently selected IRosterGroup. |
| * Returns <code>null</code> if the given <code>entry</code> is |
| * null, or if the container associated with the <code>group</code> |
| * cannot be accessed. |
| */ |
| protected IContainer getContainerForRosterEntry(IRosterEntry group) { |
| if (group == null) |
| return null; |
| IPresenceContainerAdapter pca = group.getRoster().getPresenceContainerAdapter(); |
| if (pca != null) |
| return (IContainer) pca.getAdapter(IContainer.class); |
| return null; |
| } |
| |
| } |