org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/project/handlers/CloseProjectHandler.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.LTTngProjectNode;
  23 import org.eclipse.ui.IWorkbenchPage;
  24 import org.eclipse.ui.IWorkbenchWindow;
  25 import org.eclipse.ui.PlatformUI;
  26
  27 /**
  28  * <b><u>CloseProjectHandler</u></b>
  29  * <p>
  30  * TODO: Implement me. Please.
  31  */
  32 public class CloseProjectHandler implements IHandler {
  33
  34         private LTTngProjectNode fProject = null;
  35
  36         // ------------------------------------------------------------------------
  37         // Validation
  38         // ------------------------------------------------------------------------
  39
  40         @Override
  41         public boolean isEnabled() {
  42
  43                 // Check if we are closing down
  44                 IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  45                 if (window == null)
  46                         return false;
  47
  48                 // Check if we are in the Project View
  49                 IWorkbenchPage page = window.getActivePage();
  50                 if (!(page.getActivePart() instanceof ProjectView))
  51                         return false;
  52
  53                 // Check if a project is selected
  54                 ISelection selection = page.getSelection(ProjectView.ID);
  55                 if (selection instanceof StructuredSelection) {
  56                         Object element = ((StructuredSelection) selection).getFirstElement();
  57                         fProject = (element instanceof LTTngProjectNode) ? (LTTngProjectNode) element : null;
  58                 }
  59                 return (fProject != null && fProject.isOpen());
  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                 if (fProject != null) {
  76                         fProject.closeProject();
  77                         fProject.refresh();
  78                 }
  79                 return null;
  80         }
  81
  82         @Override
  83         public void dispose() {
  84                 // TODO Auto-generated method stub
  85         }
  86
  87         // ------------------------------------------------------------------------
  88         // IHandlerListener
  89         // ------------------------------------------------------------------------
  90
  91         @Override
  92         public void addHandlerListener(IHandlerListener handlerListener) {
  93                 // TODO Auto-generated method stub
  94         }
  95
  96         @Override
  97         public void removeHandlerListener(IHandlerListener handlerListener) {
  98                 // TODO Auto-generated method stub
  99         }
 100
 101 }