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.dialog.TmfFileDialogFactory;
  33 import org.eclipse.tracecompass.tmf.ui.project.model.TmfOpenTraceHelper;
  34 import org.eclipse.tracecompass.tmf.ui.project.model.TmfProjectElement;
  35 import org.eclipse.tracecompass.tmf.ui.project.model.TmfProjectRegistry;
  36 import org.eclipse.tracecompass.tmf.ui.project.model.TmfTraceFolder;
  37 import org.eclipse.ui.PlatformUI;
  38 import org.eclipse.ui.handlers.HandlerUtil;
  39
  40 /**
  41  * Open file handler, used to open files (not directories)
  42  *
  43  * @author Matthew Khouzam
  44  */
  45 public class OpenFileHandler extends AbstractHandler {
  46
  47     @Override
  48     public Object execute(ExecutionEvent event) {
  49
  50         ISelection currentSelection = HandlerUtil.getCurrentSelection(event);
  51         // Menu Selection is not null for context-sensitive menu
  52         ISelection menuSelection  = HandlerUtil.getActiveMenuSelection(event);
  53
  54         // Get trace path
  55         final Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
  56         FileDialog fd = TmfFileDialogFactory.create(shell);
  57         fd.setText(Messages.OpenFileHandler_SelectTraceFile);
  58         IEclipsePreferences defaultPreferences = InstanceScope.INSTANCE.getNode(Activator.PLUGIN_ID);
  59         String lastLocation = defaultPreferences.get(ITmfUIPreferences.PREF_SAVED_OPEN_FILE_LOCATION, null);
  60         if (lastLocation != null && !lastLocation.isEmpty()) {
  61             File parentFile = new File(lastLocation).getParentFile();
  62             if (parentFile != null && parentFile.exists()) {
  63                 fd.setFilterPath(parentFile.toString());
  64             }
  65         }
  66         String filePath = fd.open();
  67         if (filePath == null) {
  68             return null;
  69         }
  70
  71         try {
  72
  73             TmfTraceFolder destinationFolder;
  74
  75             if ((menuSelection != null) && (currentSelection instanceof IStructuredSelection)) {
  76                 // If handler is called from the context sensitive menu of a tracing project import to
  77                 // the traces folder from this project
  78                 destinationFolder = TmfHandlerUtil.getTraceFolderFromSelection(currentSelection);
  79             } else {
  80                 // If handler is called from file menu import into default tracing project
  81                 IProject project = TmfProjectRegistry.createProject(
  82                         TmfCommonConstants.DEFAULT_TRACE_PROJECT_NAME, null, new NullProgressMonitor());
  83                 TmfProjectElement projectElement = TmfProjectRegistry.getProject(project, true);
  84                 destinationFolder = projectElement.getTracesFolder();
  85             }
  86
  87             TmfOpenTraceHelper.openTraceFromPath(destinationFolder, filePath, shell);
  88         } catch (CoreException e) {
  89             Activator.getDefault().logError(e.getMessage(), e);
  90         }
  91
  92         InstanceScope.INSTANCE.getNode(Activator.PLUGIN_ID).put(ITmfUIPreferences.PREF_SAVED_OPEN_FILE_LOCATION, filePath);
  93         return null;
  94     }
  95 }