Merge TextCheckingHelper into SpellChecker Part 2

third_party/WebKit/Source/core/editing/spellcheck/TextCheckingHelper.cpp

 /*
  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 24 matching lines @@
 #include "core/editing/markers/DocumentMarkerController.h"
 #include "core/editing/spellcheck/SpellChecker.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/page/SpellCheckerClient.h"
 #include "platform/text/TextBreakIterator.h"
 #include "platform/text/TextCheckerClient.h"
 
 namespace blink {
 
-// TODO(xiaochengh): Move this function to SpellChecker.cpp
-void SpellChecker::findMisspellings(const String& text, Vector<TextCheckingResult>& results)
-{
-    Vector<UChar> characters;
-    text.appendTo(characters);
-    unsigned length = text.length();
-
-    TextBreakIterator* iterator = wordBreakIterator(characters.data(), length);
-    if (!iterator)
-        return;
-
-    int wordStart = iterator->current();
-    while (0 <= wordStart) {
-        int wordEnd = iterator->next();
-        if (wordEnd < 0)
-            break;
-        int wordLength = wordEnd - wordStart;
-        int misspellingLocation = -1;
-        int misspellingLength = 0;
-        textChecker().checkSpellingOfString(String(characters.data() + wordStart, wordLength), &misspellingLocation, &misspellingLength);
-        if (0 < misspellingLength) {
-            DCHECK_LE(0, misspellingLocation);
-            DCHECK_LE(misspellingLocation, wordLength);
-            DCHECK_LT(0, misspellingLength);
-            DCHECK_LE(misspellingLocation + misspellingLength, wordLength);
-            TextCheckingResult misspelling;
-            misspelling.decoration = TextDecorationTypeSpelling;
-            misspelling.location = wordStart + misspellingLocation;
-            misspelling.length = misspellingLength;
-            results.append(misspelling);
-        }
-
-        wordStart = wordEnd;
-    }
-}
-
 static EphemeralRange expandToParagraphBoundary(const EphemeralRange& range)
 {
     const VisiblePosition& start = createVisiblePosition(range.startPosition());
     DCHECK(start.isNotNull()) << range.startPosition();
     const VisiblePosition& paragraphStart = startOfParagraph(start);
     DCHECK(paragraphStart.isNotNull()) << range.startPosition();
 
     const VisiblePosition& end = createVisiblePosition(range.endPosition());
     DCHECK(end.isNotNull()) << range.endPosition();
     const VisiblePosition& paragraphEnd = endOfParagraph(end);
@@ skipping 125 matching lines @@
 }
 
 int TextCheckingParagraph::checkingLength() const
 {
     DCHECK(m_checkingRange.isNotNull());
     if (-1 == m_checkingLength)
         m_checkingLength = TextIterator::rangeLength(checkingRange().startPosition(), checkingRange().endPosition());
     return m_checkingLength;
 }
 
-// TODO(xiaochengh): Move this function to SpellChecker.cpp
-String SpellChecker::findFirstMisspellingOrBadGrammar(const Position& start, const Position& end, int& outFirstFoundOffset)
-{
-    String firstFoundItem;
-    String misspelledWord;
-
-    // Initialize out parameter; it will be updated if we find something to return.
-    outFirstFoundOffset = 0;
-
-    // Expand the search range to encompass entire paragraphs, since text checking needs that much context.
-    // Determine the character offset from the start of the paragraph to the start of the original search range,
-    // since we will want to ignore results in this area.
-    Position paragraphStart = startOfParagraph(createVisiblePosition(start)).toParentAnchoredPosition();
-    Position paragraphEnd = end;
-    int totalRangeLength = TextIterator::rangeLength(paragraphStart, paragraphEnd);
-    paragraphEnd = endOfParagraph(createVisiblePosition(start)).toParentAnchoredPosition();
-
-    int rangeStartOffset = TextIterator::rangeLength(paragraphStart, start);
-    int totalLengthProcessed = 0;
-
-    bool firstIteration = true;
-    bool lastIteration = false;
-    while (totalLengthProcessed < totalRangeLength) {
-        // Iterate through the search range by paragraphs, checking each one for spelling.
-        int currentLength = TextIterator::rangeLength(paragraphStart, paragraphEnd);
-        int currentStartOffset = firstIteration ? rangeStartOffset : 0;
-        int currentEndOffset = currentLength;
-        if (inSameParagraph(createVisiblePosition(paragraphStart), createVisiblePosition(end))) {
-            // Determine the character offset from the end of the original search range to the end of the paragraph,
-            // since we will want to ignore results in this area.
-            currentEndOffset = TextIterator::rangeLength(paragraphStart, end);
-            lastIteration = true;
-        }
-        if (currentStartOffset < currentEndOffset) {
-            String paragraphString = plainText(EphemeralRange(paragraphStart, paragraphEnd));
-            if (paragraphString.length() > 0) {
-                int spellingLocation = 0;
-
-                Vector<TextCheckingResult> results;
-                findMisspellings(paragraphString, results);
-
-                for (unsigned i = 0; i < results.size(); i++) {
-                    const TextCheckingResult* result = &results[i];
-                    if (result->decoration == TextDecorationTypeSpelling && result->location >= currentStartOffset && result->location + result->length <= currentEndOffset) {
-                        DCHECK_GT(result->length, 0);
-                        DCHECK_GE(result->location, 0);
-                        spellingLocation = result->location;
-                        misspelledWord = paragraphString.substring(result->location, result->length);
-                        DCHECK(misspelledWord.length());
-                        break;
-                    }
-                }
-
-                if (!misspelledWord.isEmpty()) {
-                    int spellingOffset = spellingLocation - currentStartOffset;
-                    if (!firstIteration)
-                        spellingOffset += TextIterator::rangeLength(start, paragraphStart);
-                    outFirstFoundOffset = spellingOffset;
-                    firstFoundItem = misspelledWord;
-                    break;
-                }
-            }
-        }
-        if (lastIteration || totalLengthProcessed + currentLength >= totalRangeLength)
-            break;
-        VisiblePosition newParagraphStart = startOfNextParagraph(createVisiblePosition(paragraphEnd));
-        paragraphStart = newParagraphStart.toParentAnchoredPosition();
-        paragraphEnd = endOfParagraph(newParagraphStart).toParentAnchoredPosition();
-        firstIteration = false;
-        totalLengthProcessed += currentLength;
-    }
-    return firstFoundItem;
-}
-
 } // namespace blink