org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/project/handlers/DeleteTraceHandler.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.LTTngTraceNode;
  26 import org.eclipse.ui.IWorkbenchPage;
  27 import org.eclipse.ui.IWorkbenchWindow;
  28 import org.eclipse.ui.PlatformUI;
  29
  30 /**
  31  * <b><u>DeleteTraceHandler</u></b>
  32  * <p>
  33  * TODO: Implement me. Please.
  34  */
  35 public class DeleteTraceHandler implements IHandler {
  36
  37         private LTTngTraceNode fTrace = null;
  38
  39         // ------------------------------------------------------------------------
  40         // Validation
  41         // ------------------------------------------------------------------------
  42
  43         @Override
  44         public boolean isEnabled() {
  45
  46                 // Check if we are closing down
  47                 IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  48                 if (window == null)
  49                         return false;
  50
  51                 // Check if a trace is selected
  52                 IWorkbenchPage page = window.getActivePage();
  53                 if (!(page.getActivePart() instanceof ProjectView))
  54                         return false;
  55
  56                 // Check if a trace is selected
  57                 ISelection selection = page.getSelection(ProjectView.ID);
  58                 if (selection instanceof StructuredSelection) {
  59                         Object element = ((StructuredSelection) selection).getFirstElement();
  60                         fTrace = (element instanceof LTTngTraceNode) ? (LTTngTraceNode) element : null;
  61                 }
  62
  63                 return (fTrace != null);
  64         }
  65
  66         // Handled if we are in the ProjectView
  67         @Override
  68         public boolean isHandled() {
  69                 return true;
  70         }
  71
  72         // ------------------------------------------------------------------------
  73         // Execution
  74         // ------------------------------------------------------------------------
  75
  76         @Override
  77         public Object execute(ExecutionEvent event) throws ExecutionException {
  78
  79                 IFolder folder = fTrace.getFolder();
  80                 ILTTngProjectTreeNode parent = fTrace.getParent();
  81                 try {
  82                         parent.removeChild(fTrace);
  83                         parent.refresh();
  84                         folder.delete(true, true, null);
  85                 } catch (CoreException e) {
  86                         e.printStackTrace();
  87                 }
  88
  89                 return null;
  90         }
  91
  92         @Override
  93         public void dispose() {
  94                 // TODO Auto-generated method stub
  95         }
  96
  97         // ------------------------------------------------------------------------
  98         // IHandlerListener
  99         // ------------------------------------------------------------------------
 100
 101         @Override
 102         public void addHandlerListener(IHandlerListener handlerListener) {
 103                 // TODO Auto-generated method stub
 104         }
 105
 106         @Override
 107         public void removeHandlerListener(IHandlerListener handlerListener) {
 108                 // TODO Auto-generated method stub
 109         }
 110
 111 }