| /******************************************************************************* |
| * Copyright (c) 2004 - 2006 University Of British Columbia 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: |
| * University Of British Columbia - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.context.ui.actions; |
| |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Set; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.mylyn.context.core.AbstractContextStructureBridge; |
| import org.eclipse.mylyn.context.core.ContextCorePlugin; |
| import org.eclipse.mylyn.context.core.IInteractionElement; |
| import org.eclipse.mylyn.context.ui.InterestFilter; |
| import org.eclipse.mylyn.internal.tasks.ui.TasksUiImages; |
| import org.eclipse.ui.actions.BaseSelectionListenerAction; |
| import org.eclipse.ui.internal.navigator.NavigatorContentServiceContentProvider; |
| import org.eclipse.ui.navigator.CommonViewer; |
| |
| /** |
| * |
| * @author Mik Kersten |
| */ |
| public class RemoveFromContextAction extends BaseSelectionListenerAction { |
| |
| public static final String ID = "org.eclipse.mylyn.context.ui.actions.delete"; |
| |
| private CommonViewer commonViewer; |
| |
| private InterestFilter interestFilter; |
| |
| public RemoveFromContextAction(CommonViewer commonViewer, InterestFilter interestFilter) { |
| super("Remove from Context"); |
| setId(ID); |
| setImageDescriptor(TasksUiImages.REMOVE); |
| this.commonViewer = commonViewer; |
| this.interestFilter = interestFilter; |
| } |
| |
| @Override |
| public void run() { |
| Set<IInteractionElement> toRemove = new HashSet<IInteractionElement>(); |
| |
| for (Iterator<?> iterator = super.getStructuredSelection().iterator(); iterator.hasNext();) { |
| Object object = iterator.next(); |
| collectChildren(toRemove, object); |
| } |
| |
| for (IInteractionElement element : toRemove) { |
| ContextCorePlugin.getContextManager().delete(element); |
| } |
| if (commonViewer != null) { |
| commonViewer.refresh(); |
| } |
| } |
| |
| private void collectChildren(Set<IInteractionElement> toRemove, Object object) { |
| IInteractionElement element = resolveElement(object); |
| if (element != null) { |
| toRemove.add(element); |
| } |
| |
| Object[] children = ((NavigatorContentServiceContentProvider)commonViewer.getContentProvider()).getChildren(object); |
| for (int i = 0; i < children.length; i++) { |
| Object child = children[i]; |
| if (interestFilter.select(commonViewer, object, child)) { |
| collectChildren(toRemove, child); |
| } |
| } |
| } |
| |
| private IInteractionElement resolveElement(Object object) { |
| IInteractionElement element = null; |
| if (object instanceof IInteractionElement) { |
| element = (IInteractionElement)object; |
| } else { |
| AbstractContextStructureBridge bridge = ContextCore.getStructureBridge(object); |
| if (bridge.getContentType() == null) { |
| // try to resolve the resource |
| if (object instanceof IAdaptable) { |
| Object adapted = ((IAdaptable) object).getAdapter(IResource.class); |
| if (adapted instanceof IResource) { |
| object = adapted; |
| } |
| bridge = ContextCore.getStructureBridge(object); |
| } |
| } |
| |
| if (!object.getClass().getName().equals(Object.class.getCanonicalName())) { |
| String handle = bridge.getHandleIdentifier(object); |
| element = ContextCorePlugin.getContextManager().getElement(handle); |
| } |
| } |
| return element; |
| } |
| } |