| /******************************************************************************* |
| * Copyright (c) 2013, 2014 École Polytechnique de Montréal |
| * |
| * All rights reserved. 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: |
| * Geneviève Bastien - Initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.tracecompass.internal.tmf.ui.project.handlers; |
| |
| import org.eclipse.core.commands.AbstractHandler; |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.jface.viewers.TreeSelection; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.MessageBox; |
| import org.eclipse.tracecompass.tmf.ui.project.model.TmfAnalysisElement; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.PlatformUI; |
| |
| /** |
| * Handler for when user wants to open the analysis help text |
| * |
| * @author Geneviève Bastien |
| */ |
| public class OpenAnalysisHelpHandler extends AbstractHandler { |
| |
| private TmfAnalysisElement fAnalysis; |
| |
| @Override |
| public boolean isEnabled() { |
| // Check if we are closing down |
| final IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); |
| if (window == null) { |
| return false; |
| } |
| |
| // Get the selection |
| final IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(); |
| final IWorkbenchPart part = page.getActivePart(); |
| if (part == null) { |
| return false; |
| } |
| final ISelectionProvider selectionProvider = part.getSite().getSelectionProvider(); |
| if (selectionProvider == null) { |
| return false; |
| } |
| final ISelection selection = selectionProvider.getSelection(); |
| |
| // Make sure there is only one selection and that it is a trace |
| fAnalysis = null; |
| if (selection instanceof TreeSelection) { |
| final TreeSelection sel = (TreeSelection) selection; |
| // There should be only one item selected as per the plugin.xml |
| final Object element = sel.getFirstElement(); |
| if (element instanceof TmfAnalysisElement) { |
| fAnalysis = (TmfAnalysisElement) element; |
| } |
| } |
| |
| return (fAnalysis != null); |
| } |
| |
| @Override |
| public Object execute(ExecutionEvent event) throws ExecutionException { |
| |
| // Check if we are closing down |
| final IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); |
| if (window == null) { |
| return null; |
| } |
| |
| // Check that the trace is valid |
| if (fAnalysis == null) { |
| return null; |
| } |
| |
| Thread thread = new Thread() { |
| @Override |
| public void run() { |
| displayHelpMsg(fAnalysis.getHelpMessage()); |
| } |
| }; |
| |
| thread.start(); |
| |
| return null; |
| } |
| |
| private static void displayHelpMsg(final String errorMsg) { |
| Display.getDefault().asyncExec(() -> { |
| /* |
| * TODO: A message box is not the best place to show help. |
| * Something should be done with the Eclipse help |
| */ |
| final MessageBox mb = new MessageBox(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell()); |
| mb.setText(Messages.AnalysisModule_Help); |
| mb.setMessage(errorMsg); |
| mb.open(); |
| }); |
| } |
| |
| } |