org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/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.lttng.ui.views.project.handlers;
  14
  15 import org.eclipse.core.commands.ExecutionEvent;
  16 import org.eclipse.core.commands.ExecutionException;
  17 import org.eclipse.core.commands.IHandler;
  18 import org.eclipse.core.commands.IHandlerListener;
  19 import org.eclipse.jface.viewers.ISelection;
  20 import org.eclipse.jface.viewers.StructuredSelection;
  21 import org.eclipse.linuxtools.lttng.ui.views.project.ProjectView;
  22 import org.eclipse.linuxtools.lttng.ui.views.project.model.LTTngExperimentNode;
  23 import org.eclipse.ui.IWorkbenchPage;
  24 import org.eclipse.ui.IWorkbenchWindow;
  25 import org.eclipse.ui.PlatformUI;
  26
  27 /**
  28  * <b><u>OpenExperimentHandler</u></b>
  29  * <p>
  30  * TODO: Implement me. Please.
  31  */
  32 public class OpenExperimentHandler implements IHandler {
  33
  34         private LTTngExperimentNode fExperiment = null;
  35
  36         // ------------------------------------------------------------------------
  37         // Validation
  38         // ------------------------------------------------------------------------
  39
  40         @Override
  41         public boolean isEnabled() {
  42                 // Check if we are closing down
  43                 IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  44                 if (window == null)
  45                         return false;
  46
  47                 // Check if a trace is selected
  48                 IWorkbenchPage page = window.getActivePage();
  49                 if (!(page.getActivePart() instanceof ProjectView))
  50                         return false;
  51
  52                 // Check if a trace is selected
  53                 ISelection selection = page.getSelection(ProjectView.ID);
  54                 if (selection instanceof StructuredSelection) {
  55                         Object element = ((StructuredSelection) selection).getFirstElement();
  56                         fExperiment = (element instanceof LTTngExperimentNode) ? (LTTngExperimentNode) element : null;
  57                 }
  58
  59                 return (fExperiment != null);
  60         }
  61
  62         // Handled if we are in the ProjectView
  63         @Override
  64         public boolean isHandled() {
  65                 return true;
  66         }
  67
  68         // ------------------------------------------------------------------------
  69         // Execution
  70         // ------------------------------------------------------------------------
  71
  72         @Override
  73         public Object execute(ExecutionEvent event) throws ExecutionException {
  74
  75                 // Set the selection to the project
  76                 IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
  77                 ProjectView projectView = (ProjectView) page.getActivePart();
  78
  79                 if (projectView != null) {
  80                         projectView.selectExperiment(fExperiment);
  81                 }
  82
  83                 return null;
  84         }
  85
  86         // ------------------------------------------------------------------------
  87         // IHandlerListener
  88         // ------------------------------------------------------------------------
  89
  90         @Override
  91         public void addHandlerListener(IHandlerListener handlerListener) {
  92                 // TODO Auto-generated method stub
  93         }
  94
  95         @Override
  96         public void removeHandlerListener(IHandlerListener handlerListener) {
  97                 // TODO Auto-generated method stub
  98         }
  99
 100         @Override
 101         public void dispose() {
 102                 // TODO Auto-generated method stub
 103
 104         }
 105
 106 }