org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/internal/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.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.jface.viewers.ISelection;
  19 import org.eclipse.jface.viewers.ISelectionProvider;
  20 import org.eclipse.jface.viewers.TreeSelection;
  21 import org.eclipse.linuxtools.tmf.ui.project.model.TmfExperimentElement;
  22 import org.eclipse.linuxtools.tmf.ui.project.wizards.CopyExperimentDialog;
  23 import org.eclipse.swt.widgets.Shell;
  24 import org.eclipse.ui.IWorkbenchPage;
  25 import org.eclipse.ui.IWorkbenchPart;
  26 import org.eclipse.ui.IWorkbenchWindow;
  27 import org.eclipse.ui.PlatformUI;
  28
  29 /**
  30  * <b><u>CopyExperimentHandler</u></b>
  31  * <p>
  32  * TODO: Implement me. Please.
  33  */
  34 public class CopyExperimentHandler extends AbstractHandler {
  35
  36     private TmfExperimentElement fExperiment = null;
  37
  38     // ------------------------------------------------------------------------
  39     // isEnabled
  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
  51         // Get the selection
  52         IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
  53         IWorkbenchPart part = page.getActivePart();
  54         if (part == null) {
  55             return false;
  56         }
  57         ISelectionProvider selectionProvider = part.getSite().getSelectionProvider();
  58         if (selectionProvider == null)
  59             return false;
  60         ISelection selection = selectionProvider.getSelection();
  61
  62         // Make sure there is only selection and that it is an experiment
  63         fExperiment = null;
  64         if (selection instanceof TreeSelection) {
  65             TreeSelection sel = (TreeSelection) selection;
  66             // There should be only one item selected as per the plugin.xml
  67             Object element = sel.getFirstElement();
  68             if (element instanceof TmfExperimentElement) {
  69                 fExperiment = (TmfExperimentElement) element;
  70             }
  71         }
  72
  73         return (fExperiment != null);
  74     }
  75
  76     // ------------------------------------------------------------------------
  77     // Execution
  78     // ------------------------------------------------------------------------
  79
  80     @Override
  81     public Object execute(ExecutionEvent event) throws ExecutionException {
  82
  83         // Check if we are closing down
  84         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  85         if (window == null)
  86             return null;
  87
  88         // Fire the Copy Experiment dialog
  89         Shell shell = window.getShell();
  90         CopyExperimentDialog dialog = new CopyExperimentDialog(shell, fExperiment);
  91         dialog.open();
  92
  93         return null;
  94     }
  95
  96 }