org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/util/DeleteIProblemMarkerAction.java

   1 /*******************************************************************************
   2  * Copyright (c) 2005, 2008 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  * IBM - Initial API and implementation
  10  *******************************************************************************/
  11 package org.eclipse.cdt.internal.ui.util;
  12
  13 import java.util.ArrayList;
  14 import java.util.Iterator;
  15 import java.util.List;
  16
  17 import org.eclipse.core.resources.IMarker;
  18 import org.eclipse.core.resources.ResourcesPlugin;
  19 import org.eclipse.core.runtime.CoreException;
  20 import org.eclipse.jface.action.IAction;
  21 import org.eclipse.jface.viewers.ISelection;
  22 import org.eclipse.jface.viewers.IStructuredSelection;
  23 import org.eclipse.ui.IObjectActionDelegate;
  24 import org.eclipse.ui.IWorkbenchPart;
  25 import org.eclipse.ui.actions.ActionDelegate;
  26
  27 import org.eclipse.cdt.core.model.ICModelMarker;
  28
  29 /**
  30  * @author Bogdan Gheorghe
  31  */
  32 public class DeleteIProblemMarkerAction extends ActionDelegate implements IObjectActionDelegate {
  33
  34     private IStructuredSelection  selection;
  35
  36         /**
  37          * @see ActionDelegate#run(IAction)
  38          */
  39         @Override
  40         public void run(IAction action) {
  41
  42                 if (selection != null) {
  43                         if (selection.isEmpty()) {
  44                                 return;
  45                         }
  46                         try {
  47                                 List<?> list = selection.toList();
  48                                 List<IMarker> listMarkers = new ArrayList<IMarker>();
  49                                 Iterator<?> iterator = list.iterator();
  50                                 while (iterator.hasNext()) {
  51                                         IMarker marker = (IMarker)iterator.next();
  52                                         if (marker.isSubtypeOf(ICModelMarker.INDEXER_MARKER)) {
  53                                                 listMarkers.add(marker);
  54                                         }
  55                                 }
  56                                 // Bail out early
  57                                 if (listMarkers.isEmpty()) {
  58                                         return;
  59                                 }
  60                                 IMarker[] markers = new IMarker[listMarkers.size()];
  61                                 listMarkers.toArray(markers);
  62                                 // be sure to only invoke one workspace operation
  63                                 ResourcesPlugin.getWorkspace().deleteMarkers(markers);
  64                                 selection = null;
  65                         } catch (CoreException e) {
  66                         }
  67                 }
  68         }
  69
  70         /**
  71          * @see IObjectActionDelegate#setActivePart(IAction, IWorkbenchPart)
  72          */
  73         public void setActivePart(IAction action, IWorkbenchPart targetPart) {
  74         }
  75
  76         @Override
  77         public void selectionChanged(IAction action, ISelection selection) {
  78                 boolean enable = false;
  79                 if (selection instanceof IStructuredSelection) {
  80                         Object object = ((IStructuredSelection) selection).getFirstElement();
  81                         if (object instanceof IMarker) {
  82                                 try {
  83                                         IMarker marker = (IMarker) object;
  84                                         if (marker.isSubtypeOf(ICModelMarker.INDEXER_MARKER)) {
  85                                                         enable = true;
  86                                         }
  87                                         this.selection = (IStructuredSelection)selection;
  88                                         action.setEnabled(enable);
  89                                 } catch (CoreException e) {
  90                                 }
  91                         }
  92                 }
  93         }
  94
  95 }