org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/internal/tmf/ui/project/handlers/DeleteTraceSupplementaryFilesHandler.java

   1 /*******************************************************************************
   2  * Copyright (c) 2009, 2010, 2011 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.internal.tmf.ui.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.IResource;
  19 import org.eclipse.core.runtime.CoreException;
  20 import org.eclipse.jface.viewers.ISelection;
  21 import org.eclipse.jface.viewers.ISelectionProvider;
  22 import org.eclipse.jface.viewers.TreeSelection;
  23 import org.eclipse.jface.window.Window;
  24 import org.eclipse.linuxtools.internal.tmf.ui.Activator;
  25 import org.eclipse.linuxtools.internal.tmf.ui.project.dialogs.SelectSupplementaryResourcesDialog;
  26 import org.eclipse.linuxtools.tmf.ui.project.model.TmfTraceElement;
  27 import org.eclipse.ui.IWorkbenchPage;
  28 import org.eclipse.ui.IWorkbenchPart;
  29 import org.eclipse.ui.IWorkbenchWindow;
  30 import org.eclipse.ui.PlatformUI;
  31
  32 /**
  33  * <b><u>DeleteTraceSupplementaryFilesHandler</u></b>
  34  * <p>
  35  * TODO: Implement me. Please.
  36  */
  37 public class DeleteTraceSupplementaryFilesHandler extends AbstractHandler {
  38
  39     // ------------------------------------------------------------------------
  40     // Execution
  41     // ------------------------------------------------------------------------
  42
  43     @Override
  44     public Object execute(ExecutionEvent event) throws ExecutionException {
  45
  46         // Check if we are closing down
  47         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  48         if (window == null) {
  49             return null;
  50         }
  51
  52         // Get the selection
  53         IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
  54         IWorkbenchPart part = page.getActivePart();
  55         ISelectionProvider selectionProvider = part.getSite().getSelectionProvider();
  56         if (selectionProvider == null) {
  57             return false;
  58         }
  59
  60         ISelection selection = selectionProvider.getSelection();
  61
  62         // Make sure there is only selection and that it is an experiment
  63         if (selection instanceof TreeSelection) {
  64             TreeSelection sel = (TreeSelection) selection;
  65             // There should be only one item selected as per the plugin.xml
  66             Object element = sel.getFirstElement();
  67             if (element instanceof TmfTraceElement) {
  68                 TmfTraceElement trace = (TmfTraceElement) element;
  69                 // If trace is under an experiment, use the original trace from the traces folder
  70                 trace = trace.getElementUnderTraceFolder();
  71
  72                 // Delete the selected resources
  73                 IResource[] resources = trace.getSupplementaryResources();
  74
  75                 SelectSupplementaryResourcesDialog dialog = new SelectSupplementaryResourcesDialog(window.getShell(), resources);
  76                 if (dialog.open() != Window.OK) {
  77                     return null;
  78                 }
  79
  80                 trace.deleteSupplementaryResources(dialog.getResources());
  81
  82                 // Refresh project
  83                 IResource resource = trace.getProject().getResource();
  84
  85                 if (resource != null) {
  86                     try {
  87                         resource.refreshLocal(IResource.DEPTH_INFINITE, null);
  88                     } catch (CoreException e) {
  89                         Activator.getDefault().logError("Error refreshing resource " + resource, e); //$NON-NLS-1$
  90                     }
  91                 }
  92             }
  93         }
  94
  95         return null;
  96     }
  97
  98 }