net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpdt/internal/ui/viewsupport/FilterUpdater.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2004 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.ui.viewsupport;
  12
  13 import org.eclipse.core.resources.IResourceChangeEvent;
  14 import org.eclipse.core.resources.IResourceChangeListener;
  15 import org.eclipse.core.resources.IResourceDelta;
  16 //incastrix
  17 //import org.eclipse.jface.text.Assert;
  18 import org.eclipse.core.runtime.Assert;
  19 import org.eclipse.jface.viewers.StructuredViewer;
  20 import org.eclipse.swt.widgets.Control;
  21
  22 public class FilterUpdater implements IResourceChangeListener {
  23
  24         private StructuredViewer fViewer;
  25
  26         public FilterUpdater(StructuredViewer viewer) {
  27                 Assert.isNotNull(viewer);
  28                 fViewer = viewer;
  29         }
  30
  31         /*
  32          * (non-Javadoc)
  33          *
  34          * @see org.eclipse.core.resources.IResourceChangeListener#resourceChanged(org.eclipse.core.resources.IResourceChangeEvent)
  35          */
  36         public void resourceChanged(IResourceChangeEvent event) {
  37                 IResourceDelta delta = event.getDelta();
  38                 if (delta == null)
  39                         return;
  40
  41                 IResourceDelta[] projDeltas = delta
  42                                 .getAffectedChildren(IResourceDelta.CHANGED);
  43                 for (int i = 0; i < projDeltas.length; i++) {
  44                         IResourceDelta pDelta = projDeltas[i];
  45                         if ((pDelta.getFlags() & IResourceDelta.DESCRIPTION) != 0) {
  46                                 final Control ctrl = fViewer.getControl();
  47                                 if (ctrl != null && !ctrl.isDisposed()) {
  48                                         // async is needed due to bug 33783
  49                                         ctrl.getDisplay().asyncExec(new Runnable() {
  50                                                 public void run() {
  51                                                         if (!ctrl.isDisposed())
  52                                                                 fViewer.refresh(false);
  53                                                 }
  54                                         });
  55                                 }
  56                         }
  57                 }
  58         }
  59 }