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

   1 /*******************************************************************************
   2  * Copyright (c) 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.TmfTraceElement;
  22 import org.eclipse.linuxtools.tmf.ui.project.model.TmfTraceFolder;
  23 import org.eclipse.linuxtools.tmf.ui.project.wizards.CopyTraceDialog;
  24 import org.eclipse.swt.widgets.Shell;
  25 import org.eclipse.ui.IWorkbenchPage;
  26 import org.eclipse.ui.IWorkbenchPart;
  27 import org.eclipse.ui.IWorkbenchWindow;
  28 import org.eclipse.ui.PlatformUI;
  29
  30 /**
  31  * <b><u>CopyTraceHandler</u></b>
  32  * <p>
  33  */
  34 public class CopyTraceHandler extends AbstractHandler {
  35
  36     private TmfTraceElement fTrace = 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         // Get the selection
  51         IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
  52         IWorkbenchPart part = page.getActivePart();
  53         ISelectionProvider selectionProvider = part.getSite().getSelectionProvider();
  54         if (selectionProvider == null)
  55             return false;
  56         ISelection selection = selectionProvider.getSelection();
  57
  58         // Make sure a trace is selected
  59         fTrace = null;
  60         if (selection instanceof TreeSelection) {
  61             TreeSelection sel = (TreeSelection) selection;
  62             // There should be only one item selected as per the plugin.xml
  63             Object element = sel.getFirstElement();
  64             if (element instanceof TmfTraceElement) {
  65                 fTrace = (TmfTraceElement) element;
  66             }
  67         }
  68
  69         // We only enable opening from the Traces folder for now
  70         return (fTrace != null && fTrace.getParent() instanceof TmfTraceFolder);
  71     }
  72
  73     // ------------------------------------------------------------------------
  74     // Execution
  75     // ------------------------------------------------------------------------
  76
  77     @Override
  78     public Object execute(ExecutionEvent event) throws ExecutionException {
  79
  80         // Check if we are closing down
  81         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  82         if (window == null)
  83             return null;
  84
  85         // Fire the Copy Experiment dialog
  86         Shell shell = window.getShell();
  87         CopyTraceDialog dialog = new CopyTraceDialog(shell, fTrace);
  88         dialog.open();
  89
  90         return null;
  91     }
  92
  93 }