org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/project/handlers/OpenExperimentHandler.java

   1 /*******************************************************************************
   2  * Copyright (c) 2009, 2010 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Francois Chouinard - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.ui.views.project.handlers;
  14
  15 import org.eclipse.core.commands.AbstractHandler;
  16 import org.eclipse.core.commands.ExecutionEvent;
  17 import org.eclipse.core.commands.ExecutionException;
  18 import org.eclipse.jface.viewers.ISelection;
  19 import org.eclipse.jface.viewers.StructuredSelection;
  20 import org.eclipse.linuxtools.tmf.ui.views.project.ProjectView;
  21 import org.eclipse.linuxtools.tmf.ui.views.project.model.TmfExperimentNode;
  22 import org.eclipse.ui.IWorkbenchPage;
  23 import org.eclipse.ui.IWorkbenchWindow;
  24 import org.eclipse.ui.PlatformUI;
  25
  26 /**
  27  * <b><u>OpenExperimentHandler</u></b>
  28  * <p>
  29  * TODO: Implement me. Please.
  30  */
  31 public class OpenExperimentHandler extends AbstractHandler {
  32
  33         private TmfExperimentNode fExperiment = null;
  34
  35         // ------------------------------------------------------------------------
  36         // Validation
  37         // ------------------------------------------------------------------------
  38
  39         @Override
  40         public boolean isEnabled() {
  41                 // Check if we are closing down
  42                 IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  43                 if (window == null)
  44                         return false;
  45
  46                 // Check if a trace is selected
  47                 IWorkbenchPage page = window.getActivePage();
  48                 if (!(page.getActivePart() instanceof ProjectView))
  49                         return false;
  50
  51                 // Check if a trace is selected
  52                 ISelection selection = page.getSelection(ProjectView.ID);
  53                 if (selection instanceof StructuredSelection) {
  54                         Object element = ((StructuredSelection) selection).getFirstElement();
  55                         fExperiment = (element instanceof TmfExperimentNode) ? (TmfExperimentNode) element : null;
  56                 }
  57
  58                 return (fExperiment != null);
  59         }
  60
  61         // ------------------------------------------------------------------------
  62         // Execution
  63         // ------------------------------------------------------------------------
  64
  65         @Override
  66         public Object execute(ExecutionEvent event) throws ExecutionException {
  67
  68                 // Set the selection to the project
  69                 IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
  70                 ProjectView projectView = (ProjectView) page.getActivePart();
  71
  72                 if (projectView != null) {
  73                         projectView.selectExperiment(fExperiment);
  74                 }
  75
  76                 return null;
  77         }
  78
  79 }