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   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 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.phpeclipse.phpeditor;
  12
  13 import net.sourceforge.phpdt.core.IJavaElement;
  14 import net.sourceforge.phpdt.internal.ui.viewsupport.IProblemChangedListener;
  15 import net.sourceforge.phpdt.internal.ui.viewsupport.JavaElementImageProvider;
  16 import net.sourceforge.phpdt.internal.ui.viewsupport.JavaUILabelProvider;
  17 import net.sourceforge.phpdt.ui.ProblemsLabelDecorator;
  18 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  19 import net.sourceforge.phpeclipse.ui.WebUI;
  20
  21 import org.eclipse.core.resources.IResource;
  22 import org.eclipse.jface.text.Assert;
  23 import org.eclipse.swt.graphics.Image;
  24 import org.eclipse.swt.widgets.Shell;
  25 import org.eclipse.ui.IEditorInput;
  26
  27 /**
  28  * The <code>JavaEditorErrorTickUpdater</code> will register as a
  29  * IProblemChangedListener to listen on problem changes of the editor's input.
  30  * It updates the title images when the annotation model changed.
  31  */
  32 public class JavaEditorErrorTickUpdater implements IProblemChangedListener {
  33
  34         private PHPEditor fJavaEditor;
  35
  36         private JavaUILabelProvider fLabelProvider;
  37
  38         public JavaEditorErrorTickUpdater(PHPEditor editor) {
  39                 Assert.isNotNull(editor);
  40                 fJavaEditor = editor;
  41                 fLabelProvider = new JavaUILabelProvider(0,
  42                                 JavaElementImageProvider.SMALL_ICONS);
  43                 fLabelProvider.addLabelDecorator(new ProblemsLabelDecorator(null));
  44                 WebUI.getDefault().getProblemMarkerManager().addListener(
  45                                 this);
  46         }
  47
  48         /*
  49          * (non-Javadoc)
  50          *
  51          * @see IProblemChangedListener#problemsChanged(IResource[], boolean)
  52          */
  53         public void problemsChanged(IResource[] changedResources,
  54                         boolean isMarkerChange) {
  55                 if (isMarkerChange) {
  56                         return;
  57                 }
  58                 IEditorInput input = fJavaEditor.getEditorInput();
  59                 if (input != null) { // might run async, tests needed
  60                         IJavaElement jelement = (IJavaElement) input
  61                                         .getAdapter(IJavaElement.class);
  62                         if (jelement != null) {
  63                                 IResource resource = jelement.getResource();
  64                                 for (int i = 0; i < changedResources.length; i++) {
  65                                         if (changedResources[i].equals(resource)) {
  66                                                 updateEditorImage(jelement);
  67                                         }
  68                                 }
  69                         }
  70                 }
  71         }
  72
  73         public void updateEditorImage(IJavaElement jelement) {
  74                 Image titleImage = fJavaEditor.getTitleImage();
  75                 if (titleImage == null) {
  76                         return;
  77                 }
  78                 Image newImage = fLabelProvider.getImage(jelement);
  79                 if (titleImage != newImage) {
  80                         postImageChange(newImage);
  81                 }
  82         }
  83
  84         private void postImageChange(final Image newImage) {
  85                 Shell shell = fJavaEditor.getEditorSite().getShell();
  86                 if (shell != null && !shell.isDisposed()) {
  87                         shell.getDisplay().syncExec(new Runnable() {
  88                                 public void run() {
  89                                         fJavaEditor.updatedTitleImage(newImage);
  90                                 }
  91                         });
  92                 }
  93         }
  94
  95         public void dispose() {
  96                 fLabelProvider.dispose();
  97                 WebUI.getDefault().getProblemMarkerManager().removeListener(
  98                                 this);
  99         }
 100
 101 }