| /* |
| * Copyright (c) 2011, the Dart project authors. |
| * |
| * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except |
| * in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.dart.tools.ui.internal.util; |
| |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.IWorkbenchPartReference; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.part.ISetSelectionTarget; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| public class SelectionUtil { |
| |
| /** |
| * Returns the selected element if the selection consists of a single element only. |
| * |
| * @param s the selection |
| * @return the selected first element or null |
| */ |
| public static Object getSingleElement(ISelection s) { |
| if (!(s instanceof IStructuredSelection)) { |
| return null; |
| } |
| IStructuredSelection selection = (IStructuredSelection) s; |
| if (selection.size() != 1) { |
| return null; |
| } |
| |
| return selection.getFirstElement(); |
| } |
| |
| /** |
| * Attempts to select and reveal the specified resources in all parts within the supplied |
| * workbench window's active page. |
| * <p> |
| * Checks all parts in the active page to see if they implement <code>ISetSelectionTarget</code>, |
| * either directly or as an adapter. If so, tells the part to select and reveal the specified |
| * resources. |
| * </p> |
| * |
| * @param resources the resources to be selected and revealed |
| * @param window the workbench window to select and reveal the resource |
| * @see ISetSelectionTarget |
| * @see org.eclipse.ui.wizards.newresource.BasicNewResourceWizard#selectAndReveal(IResource, |
| * IWorkbenchWindow) |
| */ |
| public static void selectAndReveal(IResource[] resources, IWorkbenchWindow window) { |
| // validate the input |
| if (window == null || resources == null || Arrays.asList(resources).contains(null)) { |
| return; |
| } |
| IWorkbenchPage page = window.getActivePage(); |
| if (page == null) { |
| return; |
| } |
| |
| // get all the view and editor parts |
| List<IWorkbenchPart> parts = new ArrayList<IWorkbenchPart>(); |
| IWorkbenchPartReference refs[] = page.getViewReferences(); |
| for (int i = 0; i < refs.length; i++) { |
| IWorkbenchPart part = refs[i].getPart(false); |
| if (part != null) { |
| parts.add(part); |
| } |
| } |
| refs = page.getEditorReferences(); |
| for (int i = 0; i < refs.length; i++) { |
| if (refs[i].getPart(false) != null) { |
| parts.add(refs[i].getPart(false)); |
| } |
| } |
| |
| final ISelection selection = new StructuredSelection(resources); |
| Iterator<IWorkbenchPart> itr = parts.iterator(); |
| while (itr.hasNext()) { |
| IWorkbenchPart part = itr.next(); |
| |
| // get the part's ISetSelectionTarget implementation |
| ISetSelectionTarget target = null; |
| if (part instanceof ISetSelectionTarget) { |
| target = (ISetSelectionTarget) part; |
| } else { |
| target = (ISetSelectionTarget) part.getAdapter(ISetSelectionTarget.class); |
| } |
| |
| if (target != null) { |
| // select and reveal resource |
| final ISetSelectionTarget finalTarget = target; |
| window.getShell().getDisplay().asyncExec(new Runnable() { |
| @Override |
| public void run() { |
| finalTarget.selectReveal(selection); |
| } |
| }); |
| } |
| } |
| } |
| |
| @SuppressWarnings("rawtypes") |
| public static List toList(ISelection selection) { |
| if (selection instanceof IStructuredSelection) { |
| return ((IStructuredSelection) selection).toList(); |
| } |
| return null; |
| } |
| |
| } |