org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/project/handlers/CopyExperimentHandler.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.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.jface.viewers.ISelection;
  19 import org.eclipse.jface.viewers.TreeSelection;
  20 import org.eclipse.linuxtools.tmf.ui.project.model.TmfExperimentElement;
  21 import org.eclipse.linuxtools.tmf.ui.project.wizards.CopyExperimentDialog;
  22 import org.eclipse.swt.widgets.Shell;
  23 import org.eclipse.ui.IWorkbenchPage;
  24 import org.eclipse.ui.IWorkbenchPart;
  25 import org.eclipse.ui.IWorkbenchWindow;
  26 import org.eclipse.ui.PlatformUI;
  27
  28 /**
  29  * <b><u>CopyExperimentHandler</u></b>
  30  * <p>
  31  * TODO: Implement me. Please.
  32  */
  33 public class CopyExperimentHandler extends AbstractHandler {
  34
  35     private TmfExperimentElement fExperiment = null;
  36
  37     // ------------------------------------------------------------------------
  38     // isEnabled
  39     // ------------------------------------------------------------------------
  40
  41     @Override
  42     public boolean isEnabled() {
  43
  44         // Check if we are closing down
  45         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  46         if (window == null)
  47             return false;
  48
  49         // Get the selection
  50         IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
  51         IWorkbenchPart part = page.getActivePart();
  52         ISelection selection = part.getSite().getSelectionProvider().getSelection();
  53
  54         // Make sure there is only selection and that it is an experiment
  55         fExperiment = null;
  56         if (selection instanceof TreeSelection) {
  57             TreeSelection sel = (TreeSelection) selection;
  58             // There should be only one item selected as per the plugin.xml
  59             Object element = sel.getFirstElement();
  60             if (element instanceof TmfExperimentElement) {
  61                 fExperiment = (TmfExperimentElement) element;
  62             }
  63         }
  64
  65         return (fExperiment != null);
  66     }
  67
  68     // ------------------------------------------------------------------------
  69     // Execution
  70     // ------------------------------------------------------------------------
  71
  72     @Override
  73     public Object execute(ExecutionEvent event) throws ExecutionException {
  74
  75         // Check if we are closing down
  76         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  77         if (window == null)
  78             return null;
  79
  80         // Fire the Copy Experiment dialog
  81         Shell shell = window.getShell();
  82         CopyExperimentDialog dialog = new CopyExperimentDialog(shell, fExperiment);
  83         dialog.open();
  84
  85         return null;
  86     }
  87
  88 }