Eliminate class TextCheckingHelper

third_party/WebKit/Source/core/editing/spellcheck/TextCheckingParagraph.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
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "core/editing/spellcheck/TextCheckingHelper.h"
+#include "core/editing/spellcheck/TextCheckingParagraph.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/Range.h"
 #include "core/editing/VisiblePosition.h"
 #include "core/editing/VisibleUnits.h"
 #include "core/editing/iterators/CharacterIterator.h"
 #include "core/editing/iterators/WordAwareIterator.h"
-#include "core/editing/markers/DocumentMarkerController.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 {
 
-static void findMisspellings(TextCheckerClient& client, const String& text, Vector<TextCheckingResult>& results)

[yosin_UTC9, 2016/08/16 06:04:06]

Let's move class here, then re-factor.

-{
-    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;
-        client.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;
 }
 
-TextCheckingHelper::TextCheckingHelper(SpellCheckerClient& client, const Position& start, const Position& end)
-    : m_client(&client)
-    , m_start(start)
-    , m_end(end)
-{
-}
-
-TextCheckingHelper::~TextCheckingHelper()
-{
-}
-
-String TextCheckingHelper::findFirstMisspellingOrBadGrammar(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(m_start)).toParentAnchoredPosition();
-    Position paragraphEnd = m_end;
-    int totalRangeLength = TextIterator::rangeLength(paragraphStart, paragraphEnd);
-    paragraphEnd = endOfParagraph(createVisiblePosition(m_start)).toParentAnchoredPosition();
-
-    int rangeStartOffset = TextIterator::rangeLength(paragraphStart, m_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(m_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, m_end);
-            lastIteration = true;
-        }
-        if (currentStartOffset < currentEndOffset) {
-            String paragraphString = plainText(EphemeralRange(paragraphStart, paragraphEnd));
-            if (paragraphString.length() > 0) {
-                int spellingLocation = 0;
-
-                Vector<TextCheckingResult> results;
-                findMisspellings(m_client->textChecker(), 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(m_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