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   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.text;
  12
  13 import net.sourceforge.phpdt.internal.ui.text.java.IProblemRequestorExtension;
  14 import net.sourceforge.phpdt.internal.ui.text.java.JavaReconcilingStrategy;
  15 import net.sourceforge.phpdt.internal.ui.text.spelling.SpellReconcileStrategy;
  16 import net.sourceforge.phpdt.ui.PreferenceConstants;
  17 import net.sourceforge.phpeclipse.ui.WebUI;
  18 //import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  19
  20 import org.eclipse.jface.text.IRegion;
  21 import org.eclipse.jface.text.reconciler.DirtyRegion;
  22 import org.eclipse.jface.text.reconciler.IReconcilingStrategy;
  23 import org.eclipse.jface.text.source.IAnnotationModel;
  24 import org.eclipse.ui.texteditor.IDocumentProvider;
  25 import org.eclipse.ui.texteditor.ITextEditor;
  26
  27 /**
  28  * Reconciling strategy for Java code. This is a composite strategy containing
  29  * the regular java model reconciler and the comment spell checking strategy.
  30  *
  31  * @since 3.0
  32  */
  33 public class JavaCompositeReconcilingStrategy extends
  34                 CompositeReconcilingStrategy {
  35
  36         private ITextEditor fEditor;
  37
  38         private JavaReconcilingStrategy fJavaStrategy;
  39
  40         /**
  41          * Creates a new Java reconciling strategy.
  42          *
  43          * @param editor
  44          *            the editor of the strategy's reconciler
  45          * @param documentPartitioning
  46          *            the document partitioning this strategy uses for configuration
  47          */
  48         public JavaCompositeReconcilingStrategy(ITextEditor editor,
  49                         String documentPartitioning) {
  50                 fEditor = editor;
  51                 fJavaStrategy = new JavaReconcilingStrategy(editor);
  52                 setReconcilingStrategies(new IReconcilingStrategy[] {
  53                                 fJavaStrategy,
  54                                 new SpellReconcileStrategy(editor, documentPartitioning,
  55                                                 PreferenceConstants.getPreferenceStore()) });
  56         }
  57
  58         /**
  59          * Returns the problem requestor for the editor's input element.
  60          *
  61          * @return the problem requestor for the editor's input element
  62          */
  63         private IProblemRequestorExtension getProblemRequestorExtension() {
  64                 IDocumentProvider p = fEditor.getDocumentProvider();
  65                 if (p == null) {
  66                         try {
  67                                 // work around for
  68                                 // https://bugs.eclipse.org/bugs/show_bug.cgi?id=51522
  69                                 p = WebUI.getDefault()
  70                                                 .getCompilationUnitDocumentProvider();
  71                         } catch (NullPointerException npe) {
  72                                 return null;
  73                         }
  74                 }
  75                 IAnnotationModel m = p.getAnnotationModel(fEditor.getEditorInput());
  76                 if (m instanceof IProblemRequestorExtension)
  77                         return (IProblemRequestorExtension) m;
  78                 return null;
  79         }
  80
  81         /*
  82          * @see org.eclipse.jface.text.reconciler.CompositeReconcilingStrategy#reconcile(org.eclipse.jface.text.reconciler.DirtyRegion,
  83          *      org.eclipse.jface.text.IRegion)
  84          */
  85         public void reconcile(DirtyRegion dirtyRegion, IRegion subRegion) {
  86                 IProblemRequestorExtension e = getProblemRequestorExtension();
  87                 if (e != null) {
  88                         try {
  89                                 e.beginReportingSequence();
  90                                 super.reconcile(dirtyRegion, subRegion);
  91                         } finally {
  92                                 e.endReportingSequence();
  93                         }
  94                 } else {
  95                         super.reconcile(dirtyRegion, subRegion);
  96                 }
  97         }
  98
  99         /*
 100          * @see org.eclipse.jface.text.reconciler.CompositeReconcilingStrategy#reconcile(org.eclipse.jface.text.IRegion)
 101          */
 102         public void reconcile(IRegion partition) {
 103                 IProblemRequestorExtension e = getProblemRequestorExtension();
 104                 if (e != null) {
 105                         try {
 106                                 e.beginReportingSequence();
 107                                 super.reconcile(partition);
 108                         } finally {
 109                                 e.endReportingSequence();
 110                         }
 111                 } else {
 112                         super.reconcile(partition);
 113                 }
 114         }
 115
 116         /**
 117          * Tells this strategy whether to inform its listeners.
 118          *
 119          * @param notify
 120          *            <code>true</code> if listeners should be notified
 121          */
 122         public void notifyListeners(boolean notify) {
 123                 fJavaStrategy.notifyListeners(notify);
 124         }
 125
 126         /*
 127          * @see org.eclipse.jface.text.reconciler.CompositeReconcilingStrategy#initialReconcile()
 128          */
 129         public void initialReconcile() {
 130                 IProblemRequestorExtension e = getProblemRequestorExtension();
 131                 if (e != null) {
 132                         try {
 133                                 e.beginReportingSequence();
 134                                 super.initialReconcile();
 135                         } finally {
 136                                 e.endReportingSequence();
 137                         }
 138                 } else {
 139                         super.initialReconcile();
 140                 }
 141         }
 142
 143         /**
 144          * Called before reconciling is started.
 145          *
 146          * @since 3.0
 147          */
 148         public void aboutToBeReconciled() {
 149                 fJavaStrategy.aboutToBeReconciled();
 150
 151         }
 152 }