String Text::wholeText() const
{
const Text* startText = earliestLogicallyAdjacentTextNode(this);
const Text* endText = latestLogicallyAdjacentTextNode(this);
Node* onePastEndText = endText->nextSibling();
unsigned resultLength = 0;
for (const Node* n = startText; n != onePastEndText; n = n->nextSibling()) {
if (!n->isTextNode())
continue;
const Text* t = static_cast<const Text*>(n);
const String& data = t->data();
resultLength += data.length();
}
UChar* resultData;
String result = String::createUninitialized(resultLength, resultData);
UChar* p = resultData;
for (const Node* n = startText; n != onePastEndText; n = n->nextSibling()) {
if (!n->isTextNode())
continue;
const Text* t = static_cast<const Text*>(n);
const String& data = t->data();
unsigned dataLength = data.length();
memcpy(p, data.characters(), dataLength * sizeof(UChar));
p += dataLength;
}
ASSERT(p == resultData + resultLength);
return result;
}
PassRefPtr<Text> Text::replaceWholeText(const String& newText, ExceptionCode&)
{
// Remove all adjacent text nodes, and replace the contents of this one.
// Protect startText and endText against mutation event handlers removing the last ref
RefPtr<Text> startText = const_cast<Text*>(earliestLogicallyAdjacentTextNode(this));
RefPtr<Text> endText = const_cast<Text*>(latestLogicallyAdjacentTextNode(this));
RefPtr<Text> protectedThis(this); // Mutation event handlers could cause our last ref to go away
Node* parent = parentNode(); // Protect against mutation handlers moving this node during traversal
ExceptionCode ignored = 0;
for (RefPtr<Node> n = startText; n && n != this && n->isTextNode() && n->parentNode() == parent;) {
RefPtr<Node> nodeToRemove(n.release());
n = nodeToRemove->nextSibling();
parent->removeChild(nodeToRemove.get(), ignored);
}
if (this != endText) {
Node* onePastEndText = endText->nextSibling();
for (RefPtr<Node> n = nextSibling(); n && n != onePastEndText && n->isTextNode() && n->parentNode() == parent;) {
RefPtr<Node> nodeToRemove(n.release());
n = nodeToRemove->nextSibling();
parent->removeChild(nodeToRemove.get(), ignored);
}
}
if (newText.isEmpty()) {
if (parent && parentNode() == parent)
parent->removeChild(this, ignored);
return 0;
}
setData(newText, ignored);
return protectedThis.release();
}
String Text::wholeText() const
{
const Text* startText = earliestLogicallyAdjacentTextNode(this);
const Text* endText = latestLogicallyAdjacentTextNode(this);
Node* onePastEndText = endText->nextSibling();
unsigned resultLength = 0;
for (const Node* n = startText; n != onePastEndText; n = n->nextSibling()) {
if (!n->isTextNode())
continue;
const Text* t = static_cast<const Text*>(n);
const String& data = t->data();
if (std::numeric_limits<unsigned>::max() - data.length() < resultLength)
CRASH();
resultLength += data.length();
}
StringBuilder result;
result.reserveCapacity(resultLength);
for (const Node* n = startText; n != onePastEndText; n = n->nextSibling()) {
if (!n->isTextNode())
continue;
const Text* t = static_cast<const Text*>(n);
result.append(t->data());
}
ASSERT(result.length() == resultLength);
return result.toString();
}
String Text::wholeText() const
{
const Text* startText = earliestLogicallyAdjacentTextNode(this);
const Text* endText = latestLogicallyAdjacentTextNode(this);
const Node* onePastEndText = TextNodeTraversal::nextSibling(endText);
StringBuilder result;
for (const Text* text = startText; text != onePastEndText; text = TextNodeTraversal::nextSibling(text))
result.append(text->data());
return result.toString();
}
String Text::wholeText() const
{
const Text* startText = earliestLogicallyAdjacentTextNode(this);
const Text* endText = latestLogicallyAdjacentTextNode(this);
Vector<UChar> result;
Node* onePastEndText = endText->nextSibling();
for (const Node* n = startText; n != onePastEndText; n = n->nextSibling()) {
if (!n->isTextNode())
continue;
const Text* t = static_cast<const Text*>(n);
const String& data = t->data();
result.append(data.characters(), data.length());
}
return String::adopt(result);
}