net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpdt/internal/ui/text/java/JavaReconcilingStrategy.java

   1 /***********************************************************************************************************************************
   2  * Copyright (c) 2000, 2003 IBM Corporation and others. All rights reserved. This program and the accompanying materials are made
   3  * available under the terms of the Common Public License v1.0 which accompanies this distribution, and is available at
   4  * http://www.eclipse.org/legal/cpl-v10.html
   5  *
   6  * Contributors: IBM Corporation - initial API and implementation
   7  **********************************************************************************************************************************/
   8
   9 package net.sourceforge.phpdt.internal.ui.text.java;
  10
  11 import net.sourceforge.phpdt.core.ICompilationUnit;
  12 import net.sourceforge.phpdt.core.JavaModelException;
  13 import net.sourceforge.phpdt.ui.IWorkingCopyManager;
  14 import net.sourceforge.phpeclipse.ui.WebUI;
  15 //import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  16
  17 import org.eclipse.core.runtime.IProgressMonitor;
  18 import org.eclipse.core.runtime.NullProgressMonitor;
  19 import org.eclipse.jface.text.IDocument;
  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.reconciler.IReconcilingStrategyExtension;
  24 import org.eclipse.jface.text.source.IAnnotationModel;
  25 import org.eclipse.ui.texteditor.IDocumentProvider;
  26 import org.eclipse.ui.texteditor.ITextEditor;
  27
  28 public class JavaReconcilingStrategy implements IReconcilingStrategy,
  29                 IReconcilingStrategyExtension {
  30
  31         private ITextEditor fEditor;
  32
  33         private IWorkingCopyManager fManager;
  34
  35         private IDocumentProvider fDocumentProvider;
  36
  37         private IProgressMonitor fProgressMonitor;
  38
  39         private boolean fNotify = true;
  40
  41         private IJavaReconcilingListener fJavaReconcilingListener;
  42
  43         private boolean fIsJavaReconcilingListener;
  44
  45         public JavaReconcilingStrategy(ITextEditor editor) {
  46                 fEditor = editor;
  47                 fManager = WebUI.getDefault().getWorkingCopyManager();
  48                 fDocumentProvider = WebUI.getDefault()
  49                                 .getCompilationUnitDocumentProvider();
  50                 fIsJavaReconcilingListener = fEditor instanceof IJavaReconcilingListener;
  51                 if (fIsJavaReconcilingListener)
  52                         fJavaReconcilingListener = (IJavaReconcilingListener) fEditor;
  53         }
  54
  55         private IProblemRequestorExtension getProblemRequestorExtension() {
  56                 IAnnotationModel model = fDocumentProvider.getAnnotationModel(fEditor
  57                                 .getEditorInput());
  58                 if (model instanceof IProblemRequestorExtension)
  59                         return (IProblemRequestorExtension) model;
  60                 return null;
  61         }
  62
  63         private void reconcile() {
  64                 // // try {
  65                 //
  66                 // /* fix for missing cancel flag communication */
  67                 // IProblemRequestorExtension extension =
  68                 // getProblemRequestorExtension();
  69                 // if (extension != null)
  70                 // extension.setProgressMonitor(fProgressMonitor);
  71                 //
  72                 // // reconcile
  73                 // // synchronized (unit) {
  74                 // // unit.reconcile(true, fProgressMonitor);
  75                 // // }
  76                 //
  77                 // Parser parser = new Parser();
  78                 // parser.initializeScanner();
  79                 // // actualParser.setFileToParse(fileToParse);
  80                 // String text =
  81                 // fEditor.getDocumentProvider().getDocument(fEditor.getEditorInput()).get();
  82                 // parser.init(text);
  83                 // parser.reportSyntaxError();
  84                 // // checkAndReportBracketAnomalies(parser.problemReporter());
  85                 //
  86                 // /* fix for missing cancel flag communication */
  87                 // if (extension != null)
  88                 // extension.setProgressMonitor(null);
  89                 //
  90                 // // update participants
  91                 // try {
  92                 // if (fEditor instanceof IReconcilingParticipant && fNotify &&
  93                 // !fProgressMonitor.isCanceled()) {
  94                 // IReconcilingParticipant p = (IReconcilingParticipant) fEditor;
  95                 // p.reconciled();
  96                 // }
  97                 // } finally {
  98                 // fNotify = true;
  99                 // }
 100
 101                 // JDT implementation:
 102                 try {
 103                         ICompilationUnit unit = fManager.getWorkingCopy(fEditor
 104                                         .getEditorInput());
 105                         if (unit != null) {
 106                                 try {
 107
 108                                         /* fix for missing cancel flag communication */
 109                                         IProblemRequestorExtension extension = getProblemRequestorExtension();
 110                                         if (extension != null)
 111                                                 extension.setProgressMonitor(fProgressMonitor);
 112
 113                                         // reconcile
 114                                         synchronized (unit) {
 115                                                 unit.reconcile(true, fProgressMonitor);
 116                                         }
 117
 118                                         /* fix for missing cancel flag communication */
 119                                         if (extension != null)
 120                                                 extension.setProgressMonitor(null);
 121
 122                                         // update participants
 123                                         try {
 124                                                 if (fEditor instanceof IReconcilingParticipant
 125                                                                 && fNotify && !fProgressMonitor.isCanceled()) {
 126                                                         IReconcilingParticipant p = (IReconcilingParticipant) fEditor;
 127                                                         p.reconciled();
 128                                                 }
 129                                         } finally {
 130                                                 fNotify = true;
 131                                         }
 132
 133                                 } catch (JavaModelException x) {
 134                                         // swallow exception
 135                                 }
 136                         }
 137                 } finally {
 138                         // Always notify listeners, see
 139                         // https://bugs.eclipse.org/bugs/show_bug.cgi?id=55969 for the final
 140                         // solution
 141                         try {
 142                                 if (fIsJavaReconcilingListener) {
 143                                         IProgressMonitor pm = fProgressMonitor;
 144                                         if (pm == null)
 145                                                 pm = new NullProgressMonitor();
 146                                         fJavaReconcilingListener.reconciled(null, !fNotify, pm);
 147                                 }
 148                         } finally {
 149                                 fNotify = true;
 150                         }
 151
 152                 }
 153         }
 154
 155         /*
 156          * @see IReconcilingStrategy#reconcile(IRegion)
 157          */
 158         public void reconcile(IRegion partition) {
 159                 reconcile();
 160         }
 161
 162         /*
 163          * @see IReconcilingStrategy#reconcile(DirtyRegion, IRegion)
 164          */
 165         public void reconcile(DirtyRegion dirtyRegion, IRegion subRegion) {
 166                 reconcile();
 167         }
 168
 169         /*
 170          * @see IReconcilingStrategy#setDocument(IDocument)
 171          */
 172         public void setDocument(IDocument document) {
 173         }
 174
 175         /*
 176          * @see IReconcilingStrategyExtension#setProgressMonitor(IProgressMonitor)
 177          */
 178         public void setProgressMonitor(IProgressMonitor monitor) {
 179                 fProgressMonitor = monitor;
 180         }
 181
 182         /*
 183          * @see IReconcilingStrategyExtension#initialReconcile()
 184          */
 185         public void initialReconcile() {
 186                 reconcile();
 187         }
 188
 189         /**
 190          * Tells this strategy whether to inform its participants.
 191          *
 192          * @param notify
 193          *            <code>true</code> if participant should be notified
 194          */
 195         public void notifyParticipants(boolean notify) {
 196                 fNotify = notify;
 197         }
 198
 199         /**
 200          * Tells this strategy whether to inform its listeners.
 201          *
 202          * @param notify
 203          *            <code>true</code> if listeners should be notified
 204          */
 205         public void notifyListeners(boolean notify) {
 206                 fNotify = notify;
 207         }
 208
 209         /**
 210          * Called before reconciling is started.
 211          *
 212          * @since 3.0
 213          */
 214         public void aboutToBeReconciled() {
 215                 if (fIsJavaReconcilingListener)
 216                         fJavaReconcilingListener.aboutToBeReconciled();
 217         }
 218 }