| /******************************************************************************* |
| * Copyright (c) 2006, 2015 Wind River Systems 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: |
| * Wind River Systems - initial API and implementation |
| * IBM Corporation - bug fixing |
| *******************************************************************************/ |
| package org.eclipse.debug.internal.ui.contexts; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.debug.internal.ui.DebugUIPlugin; |
| import org.eclipse.debug.ui.IDebugUIConstants; |
| import org.eclipse.debug.ui.contexts.DebugContextEvent; |
| import org.eclipse.debug.ui.contexts.IDebugContextListener; |
| import org.eclipse.debug.ui.contexts.IDebugContextService; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.ui.AbstractSourceProvider; |
| import org.eclipse.ui.ISources; |
| import org.eclipse.ui.services.IEvaluationService; |
| |
| /** |
| * A source provider for the active debug context variable. |
| * |
| * @since 3.5 |
| */ |
| public class DebugContextSourceProvider extends AbstractSourceProvider implements IDebugContextListener { |
| |
| /** |
| * The names of the sources supported by this source provider. |
| */ |
| private static final String[] PROVIDED_SOURCE_NAMES = new String[] { IDebugUIConstants.DEBUG_CONTEXT_SOURCE_NAME }; |
| |
| private final IDebugContextService fDebugContextService; |
| |
| private final IEvaluationService fEvaluationService; |
| |
| /** |
| * Creates the source provider. It registers it as a listener to the |
| * given debug context service, and as a provider with the given |
| * evaluation service. |
| */ |
| public DebugContextSourceProvider(IDebugContextService debugContextService, IEvaluationService evaluationService) { |
| fDebugContextService = debugContextService; |
| fDebugContextService.addDebugContextListener(this); |
| fEvaluationService = evaluationService; |
| fEvaluationService.addSourceProvider(this); |
| } |
| |
| @Override |
| public void debugContextChanged(DebugContextEvent event) { |
| final Map<String, ISelection> values = new HashMap<String, ISelection>(1); |
| values.put(IDebugUIConstants.DEBUG_CONTEXT_SOURCE_NAME, event.getContext()); |
| // make sure fireSourceChanged is called on the UI thread |
| if (Display.getCurrent() == null) { |
| DebugUIPlugin.getStandardDisplay().asyncExec(new Runnable() { |
| @Override |
| public void run() { |
| fireSourceChanged(ISources.ACTIVE_CURRENT_SELECTION, values); |
| } |
| }); |
| } else { |
| fireSourceChanged(ISources.ACTIVE_CURRENT_SELECTION, values); |
| } |
| } |
| |
| @Override |
| public void dispose() { |
| fDebugContextService.removeDebugContextListener(this); |
| fEvaluationService.removeSourceProvider(this); |
| } |
| |
| @Override |
| public String[] getProvidedSourceNames() { |
| return PROVIDED_SOURCE_NAMES; |
| } |
| |
| @Override |
| public Map getCurrentState() { |
| Map<String, ISelection> currentState = new HashMap<String, ISelection>(1); |
| currentState.put(IDebugUIConstants.DEBUG_CONTEXT_SOURCE_NAME, fDebugContextService.getActiveContext()); |
| return currentState; |
| } |
| |
| } |