static void findMisspellings(TextCheckerClient& client, StringView text, Vector<TextCheckingResult>& results)
{
TextBreakIterator* iterator = wordBreakIterator(text);
if (!iterator)
return;
for (int wordStart = textBreakCurrent(iterator); wordStart > 0; ) {
int wordEnd = textBreakNext(iterator);
if (wordEnd < 0)
break;
int wordLength = wordEnd - wordStart;
int misspellingLocation = -1;
int misspellingLength = 0;
client.checkSpellingOfString(text.substring(wordStart, wordLength), &misspellingLocation, &misspellingLength);
if (misspellingLength > 0) {
ASSERT(misspellingLocation >= 0);
ASSERT(misspellingLocation <= wordLength);
ASSERT(misspellingLength > 0);
ASSERT(misspellingLocation + misspellingLength <= wordLength);
TextCheckingResult misspelling;
misspelling.type = TextCheckingTypeSpelling;
misspelling.location = wordStart + misspellingLocation;
misspelling.length = misspellingLength;
misspelling.replacement = client.getAutoCorrectSuggestionForMisspelledWord(text.substring(misspelling.location, misspelling.length).toStringWithoutCopying());
results.append(misspelling);
}
wordStart = wordEnd;
}
}
static void findMisspellings(TextCheckerClient& client, const UChar* text, int start, int length, Vector<TextCheckingResult>& results)
{
TextBreakIterator* iterator = wordBreakIterator(text + start, 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(text + start + wordStart, wordLength), &misspellingLocation, &misspellingLength);
if (0 < misspellingLength) {
ASSERT(0 <= misspellingLocation && misspellingLocation <= wordLength);
ASSERT(0 < misspellingLength && misspellingLocation + misspellingLength <= wordLength);
TextCheckingResult misspelling;
misspelling.decoration = TextDecorationTypeSpelling;
misspelling.location = start + wordStart + misspellingLocation;
misspelling.length = misspellingLength;
misspelling.replacement = client.getAutoCorrectSuggestionForMisspelledWord(String(text + misspelling.location, misspelling.length));
results.append(misspelling);
}
wordStart = wordEnd;
}
}
static void findBadGrammars(TextCheckerClient& client, const UChar* text, int start, int length, Vector<TextCheckingResult>& results)
{
int checkLocation = start;
int checkLength = length;
while (0 < checkLength) {
int badGrammarLocation = -1;
int badGrammarLength = 0;
Vector<GrammarDetail> badGrammarDetails;
client.checkGrammarOfString(String(text + checkLocation, checkLength), badGrammarDetails, &badGrammarLocation, &badGrammarLength);
if (!badGrammarLength)
break;
ASSERT(0 <= badGrammarLocation && badGrammarLocation <= checkLength);
ASSERT(0 < badGrammarLength && badGrammarLocation + badGrammarLength <= checkLength);
TextCheckingResult badGrammar;
badGrammar.decoration = TextDecorationTypeGrammar;
badGrammar.location = checkLocation + badGrammarLocation;
badGrammar.length = badGrammarLength;
badGrammar.details.swap(badGrammarDetails);
results.append(badGrammar);
checkLocation += (badGrammarLocation + badGrammarLength);
checkLength -= (badGrammarLocation + badGrammarLength);
}
}
void checkTextOfParagraph(TextCheckerClient& client, StringView text, TextCheckingTypeMask checkingTypes, Vector<TextCheckingResult>& results)
{
#if USE(UNIFIED_TEXT_CHECKING)
results = client.checkTextOfParagraph(text, checkingTypes);
#else
Vector<TextCheckingResult> mispellings;
if (checkingTypes & TextCheckingTypeSpelling)
findMisspellings(client, text, mispellings);
#if USE(GRAMMAR_CHECKING)
// Look for grammatical errors that occur before the first misspelling.
Vector<TextCheckingResult> grammaticalErrors;
if (checkingTypes & TextCheckingTypeGrammar) {
unsigned grammarCheckLength = text.length();
for (auto& mispelling : mispellings)
grammarCheckLength = std::min<unsigned>(grammarCheckLength, mispelling.location);
findGrammaticalErrors(client, text.substring(0, grammarCheckLength), grammaticalErrors);
}
results = std::move(grammaticalErrors);
#endif
if (results.isEmpty())
results = std::move(mispellings);
else
results.appendVector(mispellings);
#endif // USE(UNIFIED_TEXT_CHECKING)
}
static void findGrammaticalErrors(TextCheckerClient& client, StringView text, Vector<TextCheckingResult>& results)
{
for (unsigned checkLocation = 0; checkLocation < text.length(); ) {
int badGrammarLocation = -1;
int badGrammarLength = 0;
Vector<GrammarDetail> badGrammarDetails;
client.checkGrammarOfString(text.substring(checkLocation), badGrammarDetails, &badGrammarLocation, &badGrammarLength);
if (!badGrammarLength)
break;
ASSERT(badGrammarLocation >= 0);
ASSERT(static_cast<unsigned>(badGrammarLocation) <= text.length() - checkLocation);
ASSERT(badGrammarLength > 0);
ASSERT(static_cast<unsigned>(badGrammarLength) <= text.length() - checkLocation - badGrammarLocation);
TextCheckingResult badGrammar;
badGrammar.type = TextCheckingTypeGrammar;
badGrammar.location = checkLocation + badGrammarLocation;
badGrammar.length = badGrammarLength;
badGrammar.details = std::move(badGrammarDetails);
results.append(badGrammar);
checkLocation += badGrammarLocation + badGrammarLength;
}
}
bool AccessibilityObject::hasMisspelling() const
{
if (!node())
return false;
Document* document = node()->document();
if (!document)
return false;
Frame* frame = document->frame();
if (!frame)
return false;
Editor* editor = frame->editor();
if (!editor)
return false;
TextCheckerClient* textChecker = editor->textChecker();
if (!textChecker)
return false;
const UChar* chars = stringValue().characters();
int charsLength = stringValue().length();
bool isMisspelled = false;
if (unifiedTextCheckerEnabled(frame)) {
Vector<TextCheckingResult> results;
checkTextOfParagraph(textChecker, chars, charsLength, TextCheckingTypeSpelling, results);
if (!results.isEmpty())
isMisspelled = true;
return isMisspelled;
}
int misspellingLength = 0;
int misspellingLocation = -1;
textChecker->checkSpellingOfString(chars, charsLength, &misspellingLocation, &misspellingLength);
if (misspellingLength || misspellingLocation != -1)
isMisspelled = true;
return isMisspelled;
}