tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/internal/tmf/ui/commands/OpenFileHandler.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  *   Matthew Khouzam - 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 java.io.File;
  17
  18 import org.eclipse.core.commands.AbstractHandler;
  19 import org.eclipse.core.commands.ExecutionEvent;
  20 import org.eclipse.core.resources.IProject;
  21 import org.eclipse.core.runtime.CoreException;
  22 import org.eclipse.core.runtime.NullProgressMonitor;
  23 import org.eclipse.core.runtime.preferences.IEclipsePreferences;
  24 import org.eclipse.core.runtime.preferences.InstanceScope;
  25 import org.eclipse.jface.viewers.ISelection;
  26 import org.eclipse.jface.viewers.IStructuredSelection;
  27 import org.eclipse.swt.widgets.FileDialog;
  28 import org.eclipse.swt.widgets.Shell;
  29 import org.eclipse.tracecompass.internal.tmf.ui.Activator;
  30 import org.eclipse.tracecompass.internal.tmf.ui.ITmfUIPreferences;
  31 import org.eclipse.tracecompass.tmf.core.TmfCommonConstants;
  32 import org.eclipse.tracecompass.tmf.ui.project.model.TmfOpenTraceHelper;
  33 import org.eclipse.tracecompass.tmf.ui.project.model.TmfProjectElement;
  34 import org.eclipse.tracecompass.tmf.ui.project.model.TmfProjectRegistry;
  35 import org.eclipse.tracecompass.tmf.ui.project.model.TmfTraceFolder;
  36 import org.eclipse.ui.PlatformUI;
  37 import org.eclipse.ui.handlers.HandlerUtil;
  38
  39 /**
  40  * Open file handler, used to open files (not directories)
  41  *
  42  * @author Matthew Khouzam
  43  */
  44 public class OpenFileHandler extends AbstractHandler {
  45
  46     @Override
  47     public Object execute(ExecutionEvent event) {
  48
  49         ISelection currentSelection = HandlerUtil.getCurrentSelection(event);
  50         // Menu Selection is not null for context-sensitive menu
  51         ISelection menuSelection  = HandlerUtil.getActiveMenuSelection(event);
  52
  53         // Get trace path
  54         final Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
  55         FileDialog fd = new FileDialog(shell);
  56         fd.setText(Messages.OpenFileHandler_SelectTraceFile);
  57         IEclipsePreferences defaultPreferences = InstanceScope.INSTANCE.getNode(Activator.PLUGIN_ID);
  58         String lastLocation = defaultPreferences.get(ITmfUIPreferences.PREF_SAVED_OPEN_FILE_LOCATION, null);
  59         if (lastLocation != null && !lastLocation.isEmpty()) {
  60             File parentFile = new File(lastLocation).getParentFile();
  61             if (parentFile != null && parentFile.exists()) {
  62                 fd.setFilterPath(parentFile.toString());
  63             }
  64         }
  65         String filePath = fd.open();
  66         if (filePath == null) {
  67             return null;
  68         }
  69
  70         try {
  71
  72             TmfTraceFolder destinationFolder;
  73
  74             if ((menuSelection != null) && (currentSelection instanceof IStructuredSelection)) {
  75                 // If handler is called from the context sensitive menu of a tracing project import to
  76                 // the traces folder from this project
  77                 destinationFolder = TmfHandlerUtil.getTraceFolderFromSelection(currentSelection);
  78             } else {
  79                 // If handler is called from file menu import into default tracing project
  80                 IProject project = TmfProjectRegistry.createProject(
  81                         TmfCommonConstants.DEFAULT_TRACE_PROJECT_NAME, null, new NullProgressMonitor());
  82                 TmfProjectElement projectElement = TmfProjectRegistry.getProject(project, true);
  83                 destinationFolder = projectElement.getTracesFolder();
  84             }
  85
  86             TmfOpenTraceHelper.openTraceFromPath(destinationFolder, filePath, shell);
  87         } catch (CoreException e) {
  88             Activator.getDefault().logError(e.getMessage(), e);
  89         }
  90
  91         InstanceScope.INSTANCE.getNode(Activator.PLUGIN_ID).put(ITmfUIPreferences.PREF_SAVED_OPEN_FILE_LOCATION, filePath);
  92         return null;
  93     }
  94 }