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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
  12 package net.sourceforge.phpdt.internal.ui.text.spelling;
  13
  14 import java.text.MessageFormat;
  15 import java.util.Locale;
  16
  17 import net.sourceforge.phpdt.core.IProblemRequestor;
  18 import net.sourceforge.phpdt.core.compiler.IProblem;
  19 import net.sourceforge.phpdt.internal.ui.PHPUIMessages;
  20 import net.sourceforge.phpdt.internal.ui.text.IPHPPartitions;
  21 import net.sourceforge.phpdt.internal.ui.text.spelling.engine.ISpellCheckEngine;
  22 import net.sourceforge.phpdt.internal.ui.text.spelling.engine.ISpellCheckPreferenceKeys;
  23 import net.sourceforge.phpdt.internal.ui.text.spelling.engine.ISpellChecker;
  24 import net.sourceforge.phpdt.internal.ui.text.spelling.engine.ISpellEvent;
  25 import net.sourceforge.phpdt.internal.ui.text.spelling.engine.ISpellEventListener;
  26 import net.sourceforge.phpeclipse.phpeditor.php.PHPDocumentPartitioner;
  27
  28 import org.eclipse.core.runtime.IProgressMonitor;
  29 import org.eclipse.jface.preference.IPreferenceStore;
  30 import org.eclipse.jface.text.BadLocationException;
  31 import org.eclipse.jface.text.IDocument;
  32 import org.eclipse.jface.text.IRegion;
  33 import org.eclipse.jface.text.ITypedRegion;
  34 import org.eclipse.jface.text.TextUtilities;
  35 import org.eclipse.jface.text.reconciler.DirtyRegion;
  36 import org.eclipse.jface.text.reconciler.IReconcilingStrategy;
  37 import org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension;
  38 import org.eclipse.jface.text.source.IAnnotationModel;
  39 import org.eclipse.ui.texteditor.ITextEditor;
  40
  41 /**
  42  * Reconcile strategy to spell-check comments.
  43  *
  44  * @since 3.0
  45  */
  46 public class SpellReconcileStrategy implements IReconcilingStrategy, IReconcilingStrategyExtension, ISpellEventListener {
  47
  48         /**
  49          * Spelling problem to be accepted by problem requestors.
  50          */
  51         public class SpellProblem implements IProblem {
  52
  53                 /** The id of the problem */
  54                 public static final int Spelling= 0x80000000;
  55
  56                 /** The end offset of the problem */
  57                 private int fEnd= 0;
  58
  59                 /** The line number of the problem */
  60                 private int fLine= 1;
  61
  62                 /** Was the word found in the dictionary? */
  63                 private boolean fMatch;
  64
  65                 /** Does the word start a new sentence? */
  66                 private boolean fSentence= false;
  67
  68                 /** The start offset of the problem */
  69                 private int fStart= 0;
  70
  71                 /** The word which caused the problem */
  72                 private final String fWord;
  73
  74                 /**
  75                  * Creates a new spelling problem
  76                  *
  77                  * @param word
  78                  *                   The word which caused the problem
  79                  */
  80                 protected SpellProblem(final String word) {
  81                         fWord= word;
  82                 }
  83
  84                 /*
  85                  * @see net.sourceforge.phpdt.core.compiler.IProblem#getArguments()
  86                  */
  87                 public String[] getArguments() {
  88
  89                         String prefix= ""; //$NON-NLS-1$
  90                         String postfix= ""; //$NON-NLS-1$
  91
  92                         try {
  93
  94                                 final IRegion line= fDocument.getLineInformationOfOffset(fStart);
  95
  96                                 prefix= fDocument.get(line.getOffset(), fStart - line.getOffset());
  97                                 postfix= fDocument.get(fEnd + 1, line.getOffset() + line.getLength() - fEnd);
  98
  99                         } catch (BadLocationException exception) {
 100                                 // Do nothing
 101                         }
 102                         return new String[] { fWord, prefix, postfix, fSentence ? Boolean.toString(true) : Boolean.toString(false), fMatch ? Boolean.toString(true) : Boolean.toString(false)};
 103                 }
 104
 105                 /*
 106                  * @see net.sourceforge.phpdt.core.compiler.IProblem#getID()
 107                  */
 108                 public int getID() {
 109                         return Spelling;
 110                 }
 111
 112                 /*
 113                  * @see net.sourceforge.phpdt.core.compiler.IProblem#getMessage()
 114                  */
 115                 public String getMessage() {
 116
 117                         if (fSentence && fMatch)
 118                                 return MessageFormat.format(PHPUIMessages.getString("Spelling.error.case.label"), new String[] { fWord }); //$NON-NLS-1$
 119
 120                         return MessageFormat.format(PHPUIMessages.getString("Spelling.error.label"), new String[] { fWord }); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 121                 }
 122
 123                 /*
 124                  * @see net.sourceforge.phpdt.core.compiler.IProblem#getOriginatingFileName()
 125                  */
 126                 public char[] getOriginatingFileName() {
 127                         return fEditor.getEditorInput().getName().toCharArray();
 128                 }
 129
 130                 /*
 131                  * @see net.sourceforge.phpdt.core.compiler.IProblem#getSourceEnd()
 132                  */
 133                 public final int getSourceEnd() {
 134                         return fEnd;
 135                 }
 136
 137                 /*
 138                  * @see net.sourceforge.phpdt.core.compiler.IProblem#getSourceLineNumber()
 139                  */
 140                 public final int getSourceLineNumber() {
 141                         return fLine;
 142                 }
 143
 144                 /*
 145                  * @see net.sourceforge.phpdt.core.compiler.IProblem#getSourceStart()
 146                  */
 147                 public final int getSourceStart() {
 148                         return fStart;
 149                 }
 150
 151                 /**
 152                  * Was the problem word found in the dictionary?
 153                  *
 154                  * @return <code>true</code> iff the word was found, <code>false</code>
 155                  *               otherwise
 156                  */
 157                 public final boolean isDictionaryMatch() {
 158                         return fMatch;
 159                 }
 160
 161                 /*
 162                  * @see net.sourceforge.phpdt.core.compiler.IProblem#isError()
 163                  */
 164                 public final boolean isError() {
 165                         return false;
 166                 }
 167
 168                 /**
 169                  * Does the problem word start a new sentence?
 170                  *
 171                  * @return <code>true</code> iff it starts a new sentence, <code>false</code>
 172                  *               otherwise
 173                  */
 174                 public final boolean isSentenceStart() {
 175                         return fSentence;
 176                 }
 177
 178                 /*
 179                  * @see net.sourceforge.phpdt.core.compiler.IProblem#isWarning()
 180                  */
 181                 public final boolean isWarning() {
 182                         return true;
 183                 }
 184
 185                 /**
 186                  * Sets whether the problem word was found in the dictionary.
 187                  *
 188                  * @param match
 189                  *                   <code>true</code> iff the word was found, <code>false</code>
 190                  *                   otherwise
 191                  */
 192                 public final void setDictionaryMatch(final boolean match) {
 193                         fMatch= match;
 194                 }
 195
 196                 /**
 197                  * Sets whether the problem word starts a new sentence.
 198                  *
 199                  * @param sentence
 200                  *                   <code>true</code> iff the word starts a new sentence,
 201                  *                   <code>false</code> otherwise.
 202                  */
 203                 public final void setSentenceStart(final boolean sentence) {
 204                         fSentence= sentence;
 205                 }
 206
 207                 /*
 208                  * @see net.sourceforge.phpdt.core.compiler.IProblem#setSourceEnd(int)
 209                  */
 210                 public final void setSourceEnd(final int end) {
 211                         fEnd= end;
 212                 }
 213
 214                 /*
 215                  * @see net.sourceforge.phpdt.core.compiler.IProblem#setSourceLineNumber(int)
 216                  */
 217                 public final void setSourceLineNumber(final int line) {
 218                         fLine= line;
 219                 }
 220
 221                 /*
 222                  * @see net.sourceforge.phpdt.core.compiler.IProblem#setSourceStart(int)
 223                  */
 224                 public final void setSourceStart(final int start) {
 225                         fStart= start;
 226                 }
 227         }
 228
 229         /** The document to operate on */
 230         private IDocument fDocument= null;
 231
 232         /** The text editor to operate on */
 233         private final ITextEditor fEditor;
 234
 235         /** The current locale */
 236         private Locale fLocale= SpellCheckEngine.getDefaultLocale();
 237
 238         /** The partitioning of the document */
 239         private final String fPartitioning;
 240
 241         /** The preference store to use */
 242         private final IPreferenceStore fPreferences;
 243
 244         /** The problem requestor */
 245         private IProblemRequestor fRequestor;
 246
 247         /**
 248          * Creates a new comment reconcile strategy.
 249          *
 250          * @param editor
 251          *                   The text editor to operate on
 252          * @param partitioning
 253          *                   The partitioning of the document
 254          * @param store
 255          *                   The preference store to get the preferences from
 256          */
 257         public SpellReconcileStrategy(final ITextEditor editor, final String partitioning, final IPreferenceStore store) {
 258                 fEditor= editor;
 259                 fPartitioning= partitioning;
 260                 fPreferences= store;
 261
 262                 updateProblemRequestor();
 263         }
 264
 265         /**
 266          * Returns the current locale of the spell checking preferences.
 267          *
 268          * @return The current locale of the spell checking preferences
 269          */
 270         public Locale getLocale() {
 271
 272                 final String locale= fPreferences.getString(ISpellCheckPreferenceKeys.SPELLING_LOCALE);
 273                 if (locale.equals(fLocale.toString()))
 274                         return fLocale;
 275
 276                 if (locale.length() >= 5)
 277                         return new Locale(locale.substring(0, 2), locale.substring(3, 5));
 278
 279                 return SpellCheckEngine.getDefaultLocale();
 280         }
 281
 282         /*
 283          * @see net.sourceforge.phpdt.internal.ui.text.spelling.engine.ISpellEventListener#handle(net.sourceforge.phpdt.internal.ui.text.spelling.engine.ISpellEvent)
 284          */
 285         public void handle(final ISpellEvent event) {
 286
 287                 if (fRequestor != null) {
 288
 289                         final SpellProblem problem= new SpellProblem(event.getWord());
 290
 291                         problem.setSourceStart(event.getBegin());
 292                         problem.setSourceEnd(event.getEnd());
 293                         problem.setSentenceStart(event.isStart());
 294                         problem.setDictionaryMatch(event.isMatch());
 295
 296                         try {
 297                                 problem.setSourceLineNumber(fDocument.getLineOfOffset(event.getBegin()) + 1);
 298                         } catch (BadLocationException x) {
 299                                 // Do nothing
 300                         }
 301
 302                         fRequestor.acceptProblem(problem);
 303                 }
 304         }
 305
 306         /*
 307          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension#initialReconcile()
 308          */
 309         public void initialReconcile() {
 310         }
 311
 312         /*
 313          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#reconcile(org.eclipse.jface.text.reconciler.DirtyRegion,org.eclipse.jface.text.IRegion)
 314          */
 315         public void reconcile(final DirtyRegion dirtyRegion, final IRegion subRegion) {
 316                 reconcile(subRegion);
 317         }
 318
 319         /*
 320          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#reconcile(org.eclipse.jface.text.IRegion)
 321          */
 322         public void reconcile(final IRegion region) {
 323
 324                 if (fPreferences.getBoolean(ISpellCheckPreferenceKeys.SPELLING_CHECK_SPELLING) && fRequestor != null) {
 325
 326                         try {
 327
 328                                 fRequestor.beginReporting();
 329
 330                                 ITypedRegion partition= null;
 331                                 final ITypedRegion[] partitions= TextUtilities.computePartitioning(fDocument, fPartitioning, 0, fDocument.getLength(), false);
 332
 333                                 final Locale locale= getLocale();
 334                                 final ISpellCheckEngine engine= SpellCheckEngine.getInstance();
 335
 336                                 final ISpellChecker checker= engine.createSpellChecker(locale, fPreferences);
 337                                 if (checker != null) {
 338                                         try {
 339                                                 checker.addListener(this);
 340
 341                                                 for (int index= 0; index < partitions.length; index++) {
 342                                                         partition= partitions[index];
 343                                                         if (!partition.getType().equals(IDocument.DEFAULT_CONTENT_TYPE) &&
 344                                                             !partition.getType().equals(PHPDocumentPartitioner.PHP_SCRIPT_CODE))
 345                                                                 checker.execute(new SpellCheckIterator(fDocument, partition, locale));
 346                                                 }
 347
 348                                         } finally {
 349                                                 checker.removeListener(this);
 350                                         }
 351                                 }
 352                         } catch (BadLocationException exception) {
 353                                 // Do nothing
 354                         } finally {
 355                                 fRequestor.endReporting();
 356                         }
 357                 }
 358         }
 359
 360         /*
 361          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#setDocument(org.eclipse.jface.text.IDocument)
 362          */
 363         public final void setDocument(final IDocument document) {
 364                 fDocument= document;
 365
 366                 updateProblemRequestor();
 367         }
 368
 369         /*
 370          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension#setProgressMonitor(org.eclipse.core.runtime.IProgressMonitor)
 371          */
 372         public final void setProgressMonitor(final IProgressMonitor monitor) {
 373                 // Do nothing
 374         }
 375
 376         /**
 377          * Update the problem requestor based on the current editor
 378          *
 379          * @since 3.0
 380          */
 381         private void updateProblemRequestor() {
 382                 final IAnnotationModel model= fEditor.getDocumentProvider().getAnnotationModel(fEditor.getEditorInput());
 383                 fRequestor= (model instanceof IProblemRequestor) ? (IProblemRequestor) model : null;
 384         }
 385 }