| /******************************************************************************* |
| * Copyright (c) 2000, 2017 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.team.examples.pessimistic.ui; |
| |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.jface.viewers.*; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.team.core.RepositoryProvider; |
| import org.eclipse.team.examples.pessimistic.*; |
| |
| /** |
| * The <code>PessimisticDecorator</code> is a label provider |
| * that decorates resources controlled by a <code>PessimisticFilesystemProvider</code>. |
| */ |
| public class PessimisticDecorator extends LabelProvider implements ILabelDecorator, IResourceStateListener { |
| |
| /** |
| * Constructor needed for extension |
| */ |
| public PessimisticDecorator() { |
| PessimisticFilesystemProviderPlugin.getInstance().addProviderListener(this); |
| } |
| |
| public String decorateText(String text, Object element) { |
| IResource resource= getResource(element); |
| if (resource == null) |
| return text; |
| PessimisticFilesystemProvider provider= getProvider(resource); |
| if (provider == null) { |
| return text; |
| } |
| if (provider.isControlled(resource)) { |
| if (provider.isCheckedout(resource)) { |
| return ">" + text; |
| } |
| return text; |
| } |
| if (provider.isIgnored(resource)) { |
| return "[ignored] " + text; |
| } |
| return "(not controlled) " + text; |
| } |
| |
| public Image decorateImage(Image image, Object element) { |
| return image; |
| } |
| |
| /* |
| * Convenience method to get the provider of a resource |
| */ |
| private PessimisticFilesystemProvider getProvider(IResource resource) { |
| IProject project= resource.getProject(); |
| if (project != null) { |
| return (PessimisticFilesystemProvider) RepositoryProvider.getProvider(project, PessimisticFilesystemProviderPlugin.NATURE_ID); |
| } |
| return null; |
| } |
| |
| /* |
| * Convenience method to get a resource from an object |
| */ |
| private IResource getResource(Object object) { |
| if (object instanceof IResource) { |
| return (IResource) object; |
| } |
| if (object instanceof IAdaptable) { |
| return ((IAdaptable) object).getAdapter(IResource.class); |
| } |
| return null; |
| } |
| |
| /* |
| * Fires label events |
| */ |
| private void postLabelEvents(final LabelProviderChangedEvent[] events) { |
| if (events != null && events.length > 0) { |
| Display.getDefault().asyncExec(() -> { |
| for (LabelProviderChangedEvent event : events) { |
| fireLabelProviderChanged(event); |
| } |
| }); |
| } |
| } |
| |
| public void dispose() { |
| PessimisticFilesystemProviderPlugin.getInstance().removeProviderListener(this); |
| super.dispose(); |
| } |
| |
| public void stateChanged(IResource[] resources) { |
| if (resources.length > 0) { |
| LabelProviderChangedEvent[] events= new LabelProviderChangedEvent[resources.length]; |
| for (int i= 0; i < resources.length; i++) { |
| events[i]= new LabelProviderChangedEvent(this, resources[i]); |
| } |
| postLabelEvents(events); |
| } |
| } |
| |
| } |