org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/project/ProjectView.java

   1 /*******************************************************************************
   2  * Copyright (c) 2009 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.lttng.ui.views.project;
  14
  15 import java.io.FileNotFoundException;
  16
  17 import org.eclipse.core.resources.IResource;
  18 import org.eclipse.core.resources.IResourceChangeEvent;
  19 import org.eclipse.core.resources.IResourceChangeListener;
  20 import org.eclipse.core.resources.IWorkspace;
  21 import org.eclipse.core.resources.ResourcesPlugin;
  22 import org.eclipse.jface.action.IMenuListener;
  23 import org.eclipse.jface.action.IMenuManager;
  24 import org.eclipse.jface.action.MenuManager;
  25 import org.eclipse.jface.viewers.TreeSelection;
  26 import org.eclipse.jface.viewers.TreeViewer;
  27 import org.eclipse.linuxtools.lttng.event.LttngEvent;
  28 import org.eclipse.linuxtools.lttng.trace.LTTngTrace;
  29 import org.eclipse.linuxtools.lttng.ui.views.project.model.LTTngExperimentEntry;
  30 import org.eclipse.linuxtools.lttng.ui.views.project.model.LTTngTraceEntry;
  31 import org.eclipse.linuxtools.tmf.experiment.TmfExperiment;
  32 import org.eclipse.linuxtools.tmf.experiment.TmfExperimentSelectedSignal;
  33 import org.eclipse.linuxtools.tmf.trace.ITmfTrace;
  34 import org.eclipse.linuxtools.tmf.ui.views.TmfView;
  35 import org.eclipse.swt.SWT;
  36 import org.eclipse.swt.events.MouseAdapter;
  37 import org.eclipse.swt.events.MouseEvent;
  38 import org.eclipse.swt.widgets.Composite;
  39 import org.eclipse.swt.widgets.Menu;
  40 import org.eclipse.swt.widgets.Tree;
  41
  42 /**
  43  * <b><u>ProjectView</u></b>
  44  * <p>
  45  * The ProjectView keeps track of the LTTng projects in the workspace.
  46  *
  47  * TODO: Implement me. Please.
  48  * TODO: Put all actions in a context menu
  49  * TODO: Identify LTTng traces vs. experiments and hook doubleClick properly
  50  * TODO: Handle multiple traces
  51  */
  52 public class ProjectView extends TmfView {
  53
  54     public static final String ID = "org.eclipse.linuxtools.lttng.ui.views.project";
  55
  56     private final IWorkspace fWorkspace;
  57     private final IResourceChangeListener fResourceChangeListener;
  58     private TreeViewer fViewer;
  59     private TmfExperiment<LttngEvent> fExperiment = null;
  60 //    private Object fSelection = null;
  61
  62     // To perform updates on the UI thread
  63     private Runnable fViewRefresher = new Runnable() {
  64         public void run() {
  65                 if (fViewer != null)
  66                         fViewer.refresh();
  67         }
  68     };
  69
  70     // ========================================================================
  71     // Constructor/Destructor
  72     // ========================================================================
  73
  74     /**
  75          * This view needs to react to workspace resource changes
  76          */
  77         public ProjectView() {
  78
  79 //              TmfTraceContext.init();
  80
  81                 fWorkspace = ResourcesPlugin.getWorkspace();
  82         fResourceChangeListener = new IResourceChangeListener() {
  83             public void resourceChanged(IResourceChangeEvent event) {
  84                 if (event.getType() == IResourceChangeEvent.POST_CHANGE) {
  85                         Tree tree = fViewer.getTree();
  86                         if (tree != null && !tree.isDisposed())
  87                                 tree.getDisplay().asyncExec(fViewRefresher);
  88                 }
  89             }
  90         };
  91         fWorkspace.addResourceChangeListener(fResourceChangeListener);
  92         }
  93
  94     /**
  95      *
  96      */
  97     @Override
  98         public void dispose() {
  99         fWorkspace.removeResourceChangeListener(fResourceChangeListener);
 100     }
 101
 102         /* (non-Javadoc)
 103          * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
 104          */
 105         @Override
 106         public void createPartControl(Composite parent) {
 107
 108                 fViewer = new TreeViewer(parent, SWT.SINGLE);
 109         fViewer.setLabelProvider(new LTTngProjectLabelProvider());
 110         fViewer.setContentProvider(new LTTngProjectContentProvider());
 111         fViewer.setInput(ResourcesPlugin.getWorkspace().getRoot());
 112
 113         hookMouse();
 114         hookDragAndDrop();
 115         createContextMenu();
 116         }
 117
 118     /**
 119      *
 120      */
 121     private void hookMouse() {
 122         fViewer.getTree().addMouseListener(new MouseAdapter() {
 123                 @Override
 124                         public void mouseDoubleClick(MouseEvent event) {
 125                 TreeSelection selection = (TreeSelection) fViewer.getSelection();
 126                 Object element = selection.getFirstElement();
 127                 if (element instanceof LTTngExperimentEntry) {
 128                         LTTngExperimentEntry experiment = (LTTngExperimentEntry) element;
 129                         selectExperiment(experiment);
 130                 }
 131             }
 132         });
 133     }
 134
 135     private void hookDragAndDrop() {
 136         new TraceDragSource(fViewer);
 137         new TraceDropTarget(fViewer);
 138     }
 139
 140     /**
 141      * @param experiment
 142      *
 143      * TODO: Tie the proper parser to the trace
 144      */
 145     // FIXME: Troubleshooting hack - start
 146         private boolean waitForCompletion = true;
 147     // FIXME: Troubleshooting hack - end
 148
 149         private void selectExperiment(LTTngExperimentEntry experiment) {
 150         String expId = experiment.getName();
 151         if (fExperiment != null)
 152                 fExperiment.deregister();
 153         try {
 154                 LTTngTraceEntry[] traceEntries = experiment.getTraces();
 155                 int nbTraces = traceEntries.length;
 156                 ITmfTrace[] traces = new ITmfTrace[nbTraces];
 157                 for (int i = 0; i < nbTraces; i++) {
 158                         IResource res = traceEntries[i].getResource();
 159                         String location = res.getLocation().toOSString();
 160                         ITmfTrace trace = new LTTngTrace(location, waitForCompletion);
 161                 traces[i] = trace;
 162                 }
 163             fExperiment = new TmfExperiment<LttngEvent>(LttngEvent.class, expId, traces);
 164             fExperiment.indexExperiment(waitForCompletion);
 165             broadcast(new TmfExperimentSelectedSignal(this, fExperiment));
 166         } catch (FileNotFoundException e) {
 167                 // TODO: Why not tell the user? He would appreciate...
 168 //            e.printStackTrace();
 169             return;
 170         } catch (Exception e) {
 171             e.printStackTrace();
 172         }
 173     }
 174
 175     /**
 176      *
 177      */
 178     private void createContextMenu() {
 179         MenuManager menuManager = new MenuManager("#PopupMenu");
 180         menuManager.setRemoveAllWhenShown(true);
 181         menuManager.addMenuListener(new IMenuListener() {
 182             public void menuAboutToShow(IMenuManager manager) {
 183                 ProjectView.this.fillContextMenu(manager);
 184             }
 185         });
 186
 187         Menu menu = menuManager.createContextMenu(fViewer.getControl());
 188         fViewer.getControl().setMenu(menu);
 189         getSite().registerContextMenu(menuManager, fViewer);
 190     }
 191
 192     /**
 193      * @param manager
 194      */
 195     private void fillContextMenu(IMenuManager manager) {
 196     }
 197
 198     /* (non-Javadoc)
 199          * @see org.eclipse.ui.part.WorkbenchPart#setFocus()
 200          */
 201         @Override
 202         public void setFocus() {
 203                 // TODO Auto-generated method stub
 204         }
 205
 206         /* (non-Javadoc)
 207          * @see java.lang.Object#toString()
 208          */
 209         @Override
 210         public String toString() {
 211                 return "[ProjectView]";
 212         }
 213
 214 }