org.eclipse.egit.ui/src/org/eclipse/egit/ui/internal/actions/DiscardChangesAction.java

   1 /*******************************************************************************
   2  * Copyright (C) 2010, Roland Grunberg <rgrunber@redhat.com>
   3  *
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *******************************************************************************/
   9 package org.eclipse.egit.ui.internal.actions;
  10
  11 import org.eclipse.core.resources.IProject;
  12 import org.eclipse.core.resources.IResource;
  13 import org.eclipse.core.runtime.CoreException;
  14 import org.eclipse.core.runtime.IProgressMonitor;
  15 import org.eclipse.core.runtime.IStatus;
  16 import org.eclipse.core.runtime.Status;
  17 import org.eclipse.core.runtime.jobs.Job;
  18 import org.eclipse.egit.core.op.DiscardChangesOperation;
  19 import org.eclipse.egit.ui.Activator;
  20 import org.eclipse.egit.ui.UIText;
  21 import org.eclipse.jface.action.IAction;
  22 import org.eclipse.jface.dialogs.MessageDialog;
  23 import org.eclipse.jgit.lib.Repository;
  24 import org.eclipse.jgit.lib.RepositoryState;
  25
  26 /**
  27  * Checkout all selected dirty files.
  28  */
  29 public class DiscardChangesAction extends RepositoryAction {
  30
  31         @Override
  32         public void execute(IAction action) {
  33
  34                 boolean performAction = MessageDialog.openConfirm(getShell(),
  35                                 UIText.DiscardChangesAction_confirmActionTitle,
  36                                 UIText.DiscardChangesAction_confirmActionMessage);
  37                 if (!performAction)
  38                         return;
  39                 final DiscardChangesOperation operation = new DiscardChangesOperation(
  40                                 getSelectedResources());
  41                 String jobname = UIText.DiscardChangesAction_discardChanges;
  42                 Job job = new Job(jobname) {
  43                         @Override
  44                         protected IStatus run(IProgressMonitor monitor) {
  45                                 try {
  46                                         operation.execute(monitor);
  47                                 } catch (CoreException e) {
  48                                         return Activator.createErrorStatus(e.getStatus()
  49                                                         .getMessage(), e);
  50                                 }
  51                                 return Status.OK_STATUS;
  52                         }
  53                 };
  54                 job.setUser(true);
  55                 job.setRule(operation.getSchedulingRule());
  56                 job.schedule();
  57         }
  58
  59         @Override
  60         public boolean isEnabled() {
  61                 for (IResource res : getSelectedResources()) {
  62                         IProject[] proj = new IProject[] { res.getProject() };
  63                         Repository repository = getRepositoriesFor(proj)[0];
  64                         if (!repository.getRepositoryState().equals(RepositoryState.SAFE)) {
  65                                 return false;
  66                         }
  67                 }
  68                 return true;
  69         }
  70
  71 }