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 = textBreakCurrent(iterator);
while (0 <= wordStart) {
int wordEnd = textBreakNext(iterator);
if (wordEnd < 0)
break;
int wordLength = wordEnd - wordStart;
int misspellingLocation = -1;
int misspellingLength = 0;
client->checkSpellingOfString(text + start + wordStart, wordLength, &misspellingLocation, &misspellingLength);
if (0 < misspellingLength) {
ASSERT(0 <= misspellingLocation && misspellingLocation <= wordLength);
ASSERT(0 < misspellingLength && misspellingLocation + misspellingLength <= wordLength);
TextCheckingResult misspelling;
misspelling.type = TextCheckingTypeSpelling;
misspelling.location = start + wordStart + misspellingLocation;
misspelling.length = misspellingLength;
misspelling.replacement = client->getAutoCorrectSuggestionForMisspelledWord(String(text + misspelling.location, misspelling.length));
results.append(misspelling);
}
wordStart = wordEnd;
}
}
int textBreakFollowing(TextBreakIterator* bi, int pos)
{
if (pos < 0)
pos = -1;
bi->m_index = pos;
return textBreakNext(bi);
}
PassRefPtr<StringImpl> StringImpl::capitalize(UChar previous)
{
StringBuffer stringWithPrevious(m_length + 1);
stringWithPrevious[0] = previous == noBreakSpace ? ' ' : previous;
for (unsigned i = 1; i < m_length + 1; i++) {
// Replace   with a real space since ICU no longer treats   as a word separator.
if (m_data[i - 1] == noBreakSpace)
stringWithPrevious[i] = ' ';
else
stringWithPrevious[i] = m_data[i - 1];
}
TextBreakIterator* boundary = wordBreakIterator(stringWithPrevious.characters(), m_length + 1);
if (!boundary)
return this;
StringBuffer data(m_length);
int32_t endOfWord;
int32_t startOfWord = textBreakFirst(boundary);
for (endOfWord = textBreakNext(boundary); endOfWord != TextBreakDone; startOfWord = endOfWord, endOfWord = textBreakNext(boundary)) {
if (startOfWord != 0) // Ignore first char of previous string
data[startOfWord - 1] = m_data[startOfWord - 1] == noBreakSpace ? noBreakSpace : toTitleCase(stringWithPrevious[startOfWord]);
for (int i = startOfWord + 1; i < endOfWord; i++)
data[i - 1] = m_data[i - 1];
}
return adopt(data);
}
static inline void appendContextSubtargetsForNode(Node* node, SubtargetGeometryList& subtargets)
{
// This is a variant of appendBasicSubtargetsForNode that adds special subtargets for
// selected or auto-selectable parts of text nodes.
ASSERT(node->renderer());
if (!node->isTextNode())
return appendBasicSubtargetsForNode(node, subtargets);
Text* textNode = static_cast<WebCore::Text*>(node);
RenderText* textRenderer = static_cast<RenderText*>(textNode->renderer());
if (textRenderer->frame()->editor()->behavior().shouldSelectOnContextualMenuClick()) {
// Make subtargets out of every word.
String textValue = textNode->data();
TextBreakIterator* wordIterator = wordBreakIterator(textValue.characters(), textValue.length());
int lastOffset = textBreakFirst(wordIterator);
if (lastOffset == -1)
return;
int offset;
while ((offset = textBreakNext(wordIterator)) != -1) {
if (isWordTextBreak(wordIterator)) {
Vector<FloatQuad> quads;
textRenderer->absoluteQuadsForRange(quads, lastOffset, offset);
appendQuadsToSubtargetList(quads, textNode, subtargets);
}
lastOffset = offset;
}
} else {
if (textRenderer->selectionState() == RenderObject::SelectionNone)
return appendBasicSubtargetsForNode(node, subtargets);
// If selected, make subtargets out of only the selected part of the text.
int startPos, endPos;
switch (textRenderer->selectionState()) {
case RenderObject::SelectionInside:
startPos = 0;
endPos = textRenderer->textLength();
break;
case RenderObject::SelectionStart:
textRenderer->selectionStartEnd(startPos, endPos);
endPos = textRenderer->textLength();
break;
case RenderObject::SelectionEnd:
textRenderer->selectionStartEnd(startPos, endPos);
startPos = 0;
break;
case RenderObject::SelectionBoth:
textRenderer->selectionStartEnd(startPos, endPos);
break;
default:
ASSERT_NOT_REACHED();
return;
}
Vector<FloatQuad> quads;
textRenderer->absoluteQuadsForRange(quads, startPos, endPos);
appendQuadsToSubtargetList(quads, textNode, subtargets);
}
}
int textBreakFollowing(TextBreakIterator* iterator, int offset)
{
if (offset > iterator->m_charIterator.getUTF16Length())
return TextBreakDone;
if (offset < 0)
return 0;
iterator->m_charIterator.setUTF16Index(offset);
return textBreakNext(iterator);
}
unsigned String::numGraphemeClusters() const
{
TextBreakIterator* it = characterBreakIterator(characters(), length());
if (!it)
return length();
unsigned num = 0;
while (textBreakNext(it) != TextBreakDone)
++num;
return num;
}
unsigned numGraphemeClusters(const String& s)
{
NonSharedCharacterBreakIterator it(s.characters(), s.length());
if (!it)
return s.length();
unsigned num = 0;
while (textBreakNext(it) != TextBreakDone)
++num;
return num;
}
unsigned String::numCharactersInGraphemeClusters(unsigned numGraphemeClusters) const
{
TextBreakIterator* it = characterBreakIterator(characters(), length());
if (!it)
return min(length(), numGraphemeClusters);
for (unsigned i = 0; i < numGraphemeClusters; ++i) {
if (textBreakNext(it) == TextBreakDone)
return length();
}
return textBreakCurrent(it);
}
unsigned numCharactersInGraphemeClusters(const String& s, unsigned numGraphemeClusters)
{
NonSharedCharacterBreakIterator it(s.characters(), s.length());
if (!it)
return min(s.length(), numGraphemeClusters);
for (unsigned i = 0; i < numGraphemeClusters; ++i) {
if (textBreakNext(it) == TextBreakDone)
return s.length();
}
return textBreakCurrent(it);
}
bool isTextBreak(TextBreakIterator* iterator, int offset)
{
if (!offset)
return true;
if (offset > iterator->m_charIterator.getUTF16Length())
return false;
iterator->m_charIterator.setUTF16Index(offset);
int index = iterator->m_charIterator.getIndex();
iterator->m_charIterator.previous();
textBreakNext(iterator);
return iterator->m_charIterator.getIndex() == index;
}
unsigned numGraphemeClusters(const String& s)
{
unsigned stringLength = s.length();
if (!stringLength)
return 0;
// The only Latin-1 Extended Grapheme Cluster is CR LF
if (s.is8Bit() && !s.contains('\r'))
return stringLength;
NonSharedCharacterBreakIterator it(s);
if (!it)
return stringLength;
unsigned num = 0;
while (textBreakNext(it) != TextBreakDone)
++num;
return num;
}
bool FatFingers::checkForText(Node* curNode, Vector<IntersectingRegion>& intersectingRegions, Platform::IntRectRegion& fingerRegion)
{
ASSERT(curNode);
if (isFieldWithText(curNode)) {
// FIXME: Find all text in the field and find the best word.
// For now, we will just select the whole field.
IntRect boundingRect = curNode->renderer()->absoluteBoundingBoxRect(true /*use transforms*/);
Platform::IntRectRegion nodeRegion(boundingRect);
return checkFingerIntersection(nodeRegion, fingerRegion, curNode, intersectingRegions);
}
if (curNode->isTextNode()) {
WebCore::Text* curText = static_cast<WebCore::Text*>(curNode);
String allText = curText->wholeText();
// Iterate through all words, breaking at whitespace, to find the bounding box of each word.
TextBreakIterator* wordIterator = wordBreakIterator(allText.characters(), allText.length());
int lastOffset = textBreakFirst(wordIterator);
if (lastOffset == -1)
return false;
bool foundOne = false;
int offset;
Document* document = curNode->document();
while ((offset = textBreakNext(wordIterator)) != -1) {
RefPtr<Range> range = Range::create(document, curText, lastOffset, curText, offset);
if (!range->text().stripWhiteSpace().isEmpty()) {
#if DEBUG_FAT_FINGERS
log(LogLevelInfo, "Checking word '%s'", range->text().latin1().data());
#endif
Platform::IntRectRegion rangeRegion(DOMSupport::transformedBoundingBoxForRange(*range));
foundOne |= checkFingerIntersection(rangeRegion, fingerRegion, curNode, intersectingRegions);
}
lastOffset = offset;
}
return foundOne;
}
return false;
}
unsigned numCharactersInGraphemeClusters(const StringView& s, unsigned numGraphemeClusters)
{
unsigned stringLength = s.length();
if (!stringLength)
return 0;
// The only Latin-1 Extended Grapheme Cluster is CR LF
if (s.is8Bit() && !s.contains('\r'))
return std::min(stringLength, numGraphemeClusters);
NonSharedCharacterBreakIterator it(s);
if (!it)
return std::min(stringLength, numGraphemeClusters);
for (unsigned i = 0; i < numGraphemeClusters; ++i) {
if (textBreakNext(it) == TextBreakDone)
return stringLength;
}
return textBreakCurrent(it);
}
// Helper function to determine whether text is a single word.
static bool isASingleWord(const String& text)
{
TextBreakIterator* it = wordBreakIterator(text.characters(), text.length());
return it && textBreakNext(it) == static_cast<int>(text.length());
}
