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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.spelling.engine.ISpellCheckEngine;
  21 import net.sourceforge.phpdt.internal.ui.text.spelling.engine.ISpellCheckPreferenceKeys;
  22 import net.sourceforge.phpdt.internal.ui.text.spelling.engine.ISpellChecker;
  23 import net.sourceforge.phpdt.internal.ui.text.spelling.engine.ISpellEvent;
  24 import net.sourceforge.phpdt.internal.ui.text.spelling.engine.ISpellEventListener;
  25 import net.sourceforge.phpeclipse.phpeditor.php.PHPDocumentPartitioner;
  26
  27 import org.eclipse.core.runtime.IProgressMonitor;
  28 import org.eclipse.jface.preference.IPreferenceStore;
  29 import org.eclipse.jface.text.BadLocationException;
  30 import org.eclipse.jface.text.IDocument;
  31 import org.eclipse.jface.text.IRegion;
  32 import org.eclipse.jface.text.ITypedRegion;
  33 import org.eclipse.jface.text.TextUtilities;
  34 import org.eclipse.jface.text.reconciler.DirtyRegion;
  35 import org.eclipse.jface.text.reconciler.IReconcilingStrategy;
  36 import org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension;
  37 import org.eclipse.jface.text.source.IAnnotationModel;
  38 import org.eclipse.ui.texteditor.ITextEditor;
  39
  40 /**
  41  * Reconcile strategy to spell-check comments.
  42  *
  43  * @since 3.0
  44  */
  45 public class SpellReconcileStrategy implements IReconcilingStrategy,
  46                 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
  95                                                 .getLineInformationOfOffset(fStart);
  96
  97                                 prefix = fDocument.get(line.getOffset(), fStart
  98                                                 - line.getOffset());
  99                                 postfix = fDocument.get(fEnd + 1, line.getOffset()
 100                                                 + line.getLength() - fEnd);
 101
 102                         } catch (BadLocationException exception) {
 103                                 // Do nothing
 104                         }
 105                         return new String[] {
 106                                         fWord,
 107                                         prefix,
 108                                         postfix,
 109                                         fSentence ? Boolean.toString(true) : Boolean
 110                                                         .toString(false),
 111                                         fMatch ? Boolean.toString(true) : Boolean.toString(false) };
 112                 }
 113
 114                 /*
 115                  * @see net.sourceforge.phpdt.core.compiler.IProblem#getID()
 116                  */
 117                 public int getID() {
 118                         return Spelling;
 119                 }
 120
 121                 /*
 122                  * @see net.sourceforge.phpdt.core.compiler.IProblem#getMessage()
 123                  */
 124                 public String getMessage() {
 125
 126                         if (fSentence && fMatch)
 127                                 return MessageFormat
 128                                                 .format(
 129                                                                 PHPUIMessages
 130                                                                                 .getString("Spelling.error.case.label"), new String[] { fWord }); //$NON-NLS-1$
 131
 132                         return MessageFormat.format(PHPUIMessages
 133                                         .getString("Spelling.error.label"), new String[] { fWord }); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 134                 }
 135
 136                 /*
 137                  * @see net.sourceforge.phpdt.core.compiler.IProblem#getOriginatingFileName()
 138                  */
 139                 public char[] getOriginatingFileName() {
 140                         return fEditor.getEditorInput().getName().toCharArray();
 141                 }
 142
 143                 /*
 144                  * @see net.sourceforge.phpdt.core.compiler.IProblem#getSourceEnd()
 145                  */
 146                 public final int getSourceEnd() {
 147                         return fEnd;
 148                 }
 149
 150                 /*
 151                  * @see net.sourceforge.phpdt.core.compiler.IProblem#getSourceLineNumber()
 152                  */
 153                 public final int getSourceLineNumber() {
 154                         return fLine;
 155                 }
 156
 157                 /*
 158                  * @see net.sourceforge.phpdt.core.compiler.IProblem#getSourceStart()
 159                  */
 160                 public final int getSourceStart() {
 161                         return fStart;
 162                 }
 163
 164                 /**
 165                  * Was the problem word found in the dictionary?
 166                  *
 167                  * @return <code>true</code> iff the word was found,
 168                  *         <code>false</code> otherwise
 169                  */
 170                 public final boolean isDictionaryMatch() {
 171                         return fMatch;
 172                 }
 173
 174                 /*
 175                  * @see net.sourceforge.phpdt.core.compiler.IProblem#isError()
 176                  */
 177                 public final boolean isError() {
 178                         return false;
 179                 }
 180
 181                 /**
 182                  * Does the problem word start a new sentence?
 183                  *
 184                  * @return <code>true</code> iff it starts a new sentence,
 185                  *         <code>false</code> otherwise
 186                  */
 187                 public final boolean isSentenceStart() {
 188                         return fSentence;
 189                 }
 190
 191                 /*
 192                  * @see net.sourceforge.phpdt.core.compiler.IProblem#isWarning()
 193                  */
 194                 public final boolean isWarning() {
 195                         return true;
 196                 }
 197
 198                 /**
 199                  * Sets whether the problem word was found in the dictionary.
 200                  *
 201                  * @param match
 202                  *            <code>true</code> iff the word was found,
 203                  *            <code>false</code> otherwise
 204                  */
 205                 public final void setDictionaryMatch(final boolean match) {
 206                         fMatch = match;
 207                 }
 208
 209                 /**
 210                  * Sets whether the problem word starts a new sentence.
 211                  *
 212                  * @param sentence
 213                  *            <code>true</code> iff the word starts a new sentence,
 214                  *            <code>false</code> otherwise.
 215                  */
 216                 public final void setSentenceStart(final boolean sentence) {
 217                         fSentence = sentence;
 218                 }
 219
 220                 /*
 221                  * @see net.sourceforge.phpdt.core.compiler.IProblem#setSourceEnd(int)
 222                  */
 223                 public final void setSourceEnd(final int end) {
 224                         fEnd = end;
 225                 }
 226
 227                 /*
 228                  * @see net.sourceforge.phpdt.core.compiler.IProblem#setSourceLineNumber(int)
 229                  */
 230                 public final void setSourceLineNumber(final int line) {
 231                         fLine = line;
 232                 }
 233
 234                 /*
 235                  * @see net.sourceforge.phpdt.core.compiler.IProblem#setSourceStart(int)
 236                  */
 237                 public final void setSourceStart(final int start) {
 238                         fStart = start;
 239                 }
 240         }
 241
 242         /** The document to operate on */
 243         private IDocument fDocument = null;
 244
 245         /** The text editor to operate on */
 246         private final ITextEditor fEditor;
 247
 248         /** The current locale */
 249         private Locale fLocale = SpellCheckEngine.getDefaultLocale();
 250
 251         /** The partitioning of the document */
 252         private final String fPartitioning;
 253
 254         /** The preference store to use */
 255         private final IPreferenceStore fPreferences;
 256
 257         /** The problem requestor */
 258         private IProblemRequestor fRequestor;
 259
 260         /**
 261          * Creates a new comment reconcile strategy.
 262          *
 263          * @param editor
 264          *            The text editor to operate on
 265          * @param partitioning
 266          *            The partitioning of the document
 267          * @param store
 268          *            The preference store to get the preferences from
 269          */
 270         public SpellReconcileStrategy(final ITextEditor editor,
 271                         final String partitioning, final IPreferenceStore store) {
 272                 fEditor = editor;
 273                 fPartitioning = partitioning;
 274                 fPreferences = store;
 275
 276                 updateProblemRequestor();
 277         }
 278
 279         /**
 280          * Returns the current locale of the spell checking preferences.
 281          *
 282          * @return The current locale of the spell checking preferences
 283          */
 284         public Locale getLocale() {
 285
 286                 final String locale = fPreferences
 287                                 .getString(ISpellCheckPreferenceKeys.SPELLING_LOCALE);
 288                 if (locale.equals(fLocale.toString()))
 289                         return fLocale;
 290
 291                 if (locale.length() >= 5)
 292                         return new Locale(locale.substring(0, 2), locale.substring(3, 5));
 293
 294                 return SpellCheckEngine.getDefaultLocale();
 295         }
 296
 297         /*
 298          * @see net.sourceforge.phpdt.internal.ui.text.spelling.engine.ISpellEventListener#handle(net.sourceforge.phpdt.internal.ui.text.spelling.engine.ISpellEvent)
 299          */
 300         public void handle(final ISpellEvent event) {
 301
 302                 if (fRequestor != null) {
 303
 304                         final SpellProblem problem = new SpellProblem(event.getWord());
 305
 306                         problem.setSourceStart(event.getBegin());
 307                         problem.setSourceEnd(event.getEnd());
 308                         problem.setSentenceStart(event.isStart());
 309                         problem.setDictionaryMatch(event.isMatch());
 310
 311                         try {
 312                                 problem.setSourceLineNumber(fDocument.getLineOfOffset(event
 313                                                 .getBegin()) + 1);
 314                         } catch (BadLocationException x) {
 315                                 // Do nothing
 316                         }
 317
 318                         fRequestor.acceptProblem(problem);
 319                 }
 320         }
 321
 322         /*
 323          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension#initialReconcile()
 324          */
 325         public void initialReconcile() {
 326         }
 327
 328         /*
 329          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#reconcile(org.eclipse.jface.text.reconciler.DirtyRegion,org.eclipse.jface.text.IRegion)
 330          */
 331         public void reconcile(final DirtyRegion dirtyRegion, final IRegion subRegion) {
 332                 reconcile(subRegion);
 333         }
 334
 335         /*
 336          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#reconcile(org.eclipse.jface.text.IRegion)
 337          */
 338         public void reconcile(final IRegion region) {
 339
 340                 if (fPreferences
 341                                 .getBoolean(ISpellCheckPreferenceKeys.SPELLING_CHECK_SPELLING)
 342                                 && fRequestor != null) {
 343
 344                         try {
 345
 346                                 fRequestor.beginReporting();
 347
 348                                 ITypedRegion partition = null;
 349                                 final ITypedRegion[] partitions = TextUtilities
 350                                                 .computePartitioning(fDocument, fPartitioning, 0,
 351                                                                 fDocument.getLength(), false);
 352
 353                                 final Locale locale = getLocale();
 354                                 final ISpellCheckEngine engine = SpellCheckEngine.getInstance();
 355
 356                                 final ISpellChecker checker = engine.createSpellChecker(locale,
 357                                                 fPreferences);
 358                                 if (checker != null) {
 359                                         try {
 360                                                 checker.addListener(this);
 361
 362                                                 for (int index = 0; index < partitions.length; index++) {
 363                                                         partition = partitions[index];
 364                                                         if (!partition.getType().equals(
 365                                                                         IDocument.DEFAULT_CONTENT_TYPE)
 366                                                                         && !partition
 367                                                                                         .getType()
 368                                                                                         .equals(
 369                                                                                                         PHPDocumentPartitioner.PHP_SCRIPT_CODE))
 370                                                                 checker.execute(new SpellCheckIterator(
 371                                                                                 fDocument, partition, locale));
 372                                                 }
 373
 374                                         } finally {
 375                                                 checker.removeListener(this);
 376                                         }
 377                                 }
 378                         } catch (BadLocationException exception) {
 379                                 // Do nothing
 380                         } finally {
 381                                 fRequestor.endReporting();
 382                         }
 383                 }
 384         }
 385
 386         /*
 387          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#setDocument(org.eclipse.jface.text.IDocument)
 388          */
 389         public final void setDocument(final IDocument document) {
 390                 fDocument = document;
 391
 392                 updateProblemRequestor();
 393         }
 394
 395         /*
 396          * @see org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension#setProgressMonitor(org.eclipse.core.runtime.IProgressMonitor)
 397          */
 398         public final void setProgressMonitor(final IProgressMonitor monitor) {
 399                 // Do nothing
 400         }
 401
 402         /**
 403          * Update the problem requestor based on the current editor
 404          *
 405          * @since 3.0
 406          */
 407         private void updateProblemRequestor() {
 408                 final IAnnotationModel model = fEditor.getDocumentProvider()
 409                                 .getAnnotationModel(fEditor.getEditorInput());
 410                 fRequestor = (model instanceof IProblemRequestor) ? (IProblemRequestor) model
 411                                 : null;
 412         }
 413 }