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