org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/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.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.core.resources.IFolder;
  19 import org.eclipse.core.runtime.CoreException;
  20 import org.eclipse.jface.viewers.ISelection;
  21 import org.eclipse.jface.viewers.StructuredSelection;
  22 import org.eclipse.linuxtools.tmf.ui.views.project.ProjectView;
  23 import org.eclipse.linuxtools.tmf.ui.views.project.model.ITmfProjectTreeNode;
  24 import org.eclipse.linuxtools.tmf.ui.views.project.model.TmfExperimentNode;
  25 import org.eclipse.ui.IWorkbenchPage;
  26 import org.eclipse.ui.IWorkbenchWindow;
  27 import org.eclipse.ui.PlatformUI;
  28
  29 /**
  30  * <b><u>DeleteExperimentHandler</u></b>
  31  * <p>
  32  * TODO: Implement me. Please.
  33  */
  34 public class DeleteExperimentHandler extends AbstractHandler {
  35
  36         private TmfExperimentNode fExperiment = null;
  37
  38         // ------------------------------------------------------------------------
  39         // Validation
  40         // ------------------------------------------------------------------------
  41
  42         @Override
  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 TmfExperimentNode) ? (TmfExperimentNode) element : null;
  60                 }
  61
  62                 return (fExperiment != null);
  63         }
  64
  65         // ------------------------------------------------------------------------
  66         // Execution
  67         // ------------------------------------------------------------------------
  68
  69         @Override
  70         public Object execute(ExecutionEvent event) throws ExecutionException {
  71
  72                 IFolder folder = fExperiment.getFolder();
  73                 ITmfProjectTreeNode parent = fExperiment.getParent();
  74                 try {
  75                         parent.removeChild(fExperiment);
  76                         parent.refresh();
  77                         folder.delete(true, true, null);
  78                 } catch (CoreException e) {
  79                         e.printStackTrace();
  80                 }
  81
  82                 return null;
  83         }
  84
  85 }