| /**************************************************************************** |
| * 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.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.actions.CompoundContributionItem; |
| |
| /** |
| * Abstract contribution item class for creating menu contribution items for |
| * roster entries. Subclasses should be created as appropriate. |
| */ |
| public abstract class AbstractRosterEntryContributionItem extends |
| CompoundContributionItem { |
| |
| public AbstractRosterEntryContributionItem() { |
| |
| } |
| |
| public AbstractRosterEntryContributionItem(String id) { |
| super(id); |
| } |
| |
| /** |
| * Get the currently selected model object. |
| * |
| * @return Object that is current workbenchwindow selection. Returns |
| * <code>null</code> if nothing is selected. |
| */ |
| protected Object getSelection() { |
| IWorkbenchWindow ww = PlatformUI.getWorkbench() |
| .getActiveWorkbenchWindow(); |
| if (ww != null) { |
| IWorkbenchPage p = ww.getActivePage(); |
| if (p != null) { |
| ISelection selection = p.getSelection(); |
| if (selection != null |
| && selection instanceof IStructuredSelection) |
| return ((IStructuredSelection) selection).getFirstElement(); |
| |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Get the currently selected IRosterEntry. |
| * |
| * @return IRosterEntry that is current workbenchwindow selection. Returns |
| * <code>null</code> if nothing is selected or if something other than |
| * IRosterEntry is selected. |
| */ |
| protected IRosterEntry getSelectedRosterEntry() { |
| Object selection = getSelection(); |
| if (selection instanceof IRosterEntry) |
| return (IRosterEntry) selection; |
| return null; |
| } |
| |
| /** |
| * Get container for the given IRosterEntry. |
| * |
| * @param entry |
| * the IRosterEntry. May be <code>null</code>. |
| * |
| * @return IContainer associated with currently selected IRosterEntry. |
| * Returns <code>null</code> if the given <code>entry</code> is |
| * null, or if the container associated with the <code>entry</code> |
| * cannot be accessed. |
| */ |
| protected IContainer getContainerForRosterEntry(IRosterEntry entry) { |
| if (entry == null) |
| return null; |
| IPresenceContainerAdapter pca = (IPresenceContainerAdapter) entry |
| .getRoster().getPresenceContainerAdapter(); |
| if (pca != null) |
| return (IContainer) pca.getAdapter(IContainer.class); |
| return null; |
| } |
| |
| } |