void HTMLConstructionSite::insertTextNode(const String& characters)
{
AttachmentSite site;
site.parent = currentNode();
site.nextChild = 0;
if (shouldFosterParent())
findFosterSite(site);
unsigned currentPosition = 0;
// FIXME: Splitting text nodes into smaller chunks contradicts HTML5 spec, but is currently necessary
// for performance, see <https://bugs.webkit.org/show_bug.cgi?id=55898>.
Node* previousChild = site.nextChild ? site.nextChild->previousSibling() : site.parent->lastChild();
if (previousChild && previousChild->isTextNode()) {
// FIXME: We're only supposed to append to this text node if it
// was the last text node inserted by the parser.
CharacterData* textNode = static_cast<CharacterData*>(previousChild);
currentPosition = textNode->parserAppendData(characters.characters(), characters.length(), Text::defaultLengthLimit);
}
while (currentPosition < characters.length()) {
RefPtr<Text> textNode = Text::createWithLengthLimit(site.parent->document(), characters, currentPosition);
// If we have a whole string of unbreakable characters the above could lead to an infinite loop. Exceeding the length limit is the lesser evil.
if (!textNode->length())
textNode = Text::create(site.parent->document(), characters.substring(currentPosition));
currentPosition += textNode->length();
ASSERT(currentPosition <= characters.length());
attachAtSite(site, textNode.release());
}
}
void HTMLConstructionSite::insertTextNode(const String& characters, WhitespaceMode whitespaceMode)
{
HTMLConstructionSiteTask task;
task.parent = currentNode();
if (shouldFosterParent())
findFosterSite(task);
#if ENABLE(TEMPLATE_ELEMENT)
if (task.parent->hasTagName(templateTag))
task.parent = toHTMLTemplateElement(task.parent.get())->content();
#endif
// Strings composed entirely of whitespace are likely to be repeated.
// Turn them into AtomicString so we share a single string for each.
bool shouldUseAtomicString = whitespaceMode == AllWhitespace
|| (whitespaceMode == WhitespaceUnknown && isAllWhitespace(characters));
unsigned currentPosition = 0;
// FIXME: Splitting text nodes into smaller chunks contradicts HTML5 spec, but is currently necessary
// for performance, see <https://bugs.webkit.org/show_bug.cgi?id=55898>.
Node* previousChild = task.nextChild ? task.nextChild->previousSibling() : task.parent->lastChild();
if (previousChild && previousChild->isTextNode()) {
// FIXME: We're only supposed to append to this text node if it
// was the last text node inserted by the parser.
CharacterData* textNode = static_cast<CharacterData*>(previousChild);
currentPosition = textNode->parserAppendData(characters, 0, Text::defaultLengthLimit);
}
while (currentPosition < characters.length()) {
RefPtr<Text> textNode = Text::createWithLengthLimit(task.parent->document(), shouldUseAtomicString ? AtomicString(characters).string() : characters, currentPosition);
// If we have a whole string of unbreakable characters the above could lead to an infinite loop. Exceeding the length limit is the lesser evil.
if (!textNode->length()) {
String substring = characters.substring(currentPosition);
textNode = Text::create(task.parent->document(), shouldUseAtomicString ? AtomicString(substring).string() : substring);
}
currentPosition += textNode->length();
ASSERT(currentPosition <= characters.length());
task.child = textNode.release();
if (task.parent->document() != task.child->document())
task.parent->document()->adoptNode(task.child, ASSERT_NO_EXCEPTION);
executeTask(task);
}
}
void HTMLConstructionSite::insertTextNode(const String& characters)
{
AttachmentSite site;
site.parent = currentElement();
site.nextChild = 0;
if (shouldFosterParent())
findFosterSite(site);
Node* previousChild = site.nextChild ? site.nextChild->previousSibling() : site.parent->lastChild();
if (previousChild && previousChild->isTextNode()) {
// FIXME: We're only supposed to append to this text node if it
// was the last text node inserted by the parser.
CharacterData* textNode = static_cast<CharacterData*>(previousChild);
textNode->parserAppendData(characters);
return;
}
attachAtSite(site, Text::create(site.parent->document(), characters));
}