org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/internal/tmf/ui/commands/TmfHandlerUtil.java

   1 /*******************************************************************************
   2  * Copyright (c) 2013, 2014 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  *     Marc-Andre Laperle - Initial API and implementation
  11  *     Patrick Tasse - Add support for folder elements
  12  *******************************************************************************/
  13
  14 package org.eclipse.tracecompass.internal.tmf.ui.commands;
  15
  16 import org.eclipse.core.resources.IProject;
  17 import org.eclipse.jface.viewers.ISelection;
  18 import org.eclipse.jface.viewers.IStructuredSelection;
  19 import org.eclipse.tracecompass.tmf.ui.project.model.ITmfProjectModelElement;
  20 import org.eclipse.tracecompass.tmf.ui.project.model.TmfTraceFolder;
  21
  22 /**
  23  * Utility methods for handlers
  24  *
  25  * @author Marc-Andre Laperle
  26  */
  27 public class TmfHandlerUtil {
  28
  29     /**
  30      * Get the enclosing project from the selection
  31      *
  32      * @param selection
  33      *            the selection
  34      *
  35      * @return the enclosing project or null if selection is no enclosed by a
  36      *         project
  37      */
  38     public static IProject getProjectFromSelection(ISelection selection) {
  39         if (selection instanceof IStructuredSelection) {
  40             IStructuredSelection structuredSelection = (IStructuredSelection) selection;
  41             Object firstElement = structuredSelection.getFirstElement();
  42             if (firstElement instanceof ITmfProjectModelElement) {
  43                 ITmfProjectModelElement tmfProjectElement = (ITmfProjectModelElement) firstElement;
  44                 return tmfProjectElement.getProject().getResource();
  45             }
  46         }
  47
  48         return null;
  49     }
  50
  51     /**
  52      * Get the trace folder from the selection
  53      *
  54      * @param selection
  55      *            the selection
  56      *
  57      * @return the enclosing project or null if selection is no enclosed by a
  58      *         project
  59      */
  60     public static TmfTraceFolder getTraceFolderFromSelection(ISelection selection) {
  61         if (selection instanceof IStructuredSelection) {
  62             IStructuredSelection structuredSelection = (IStructuredSelection) selection;
  63             Object firstElement = structuredSelection.getFirstElement();
  64             if (firstElement instanceof ITmfProjectModelElement) {
  65                 ITmfProjectModelElement element = (ITmfProjectModelElement) firstElement;
  66                 while (element != null) {
  67                     if (element instanceof TmfTraceFolder) {
  68                         return (TmfTraceFolder) element;
  69                     }
  70                     element = element.getParent();
  71                 }
  72             }
  73         }
  74         return null;
  75     }
  76 }