PassRefPtr<Text> Text::splitText(unsigned offset, ExceptionCode& ec)
{
ec = 0;
if (this->parent()) {if (!RO_check(this->parent())) return 0;}
// INDEX_SIZE_ERR: Raised if the specified offset is negative or greater than
// the number of 16-bit units in data.
if (offset > length()) {
ec = INDEX_SIZE_ERR;
return 0;
}
RefPtr<StringImpl> oldStr = dataImpl();
RefPtr<Text> newText = virtualCreate(oldStr->substring(offset));
setDataImpl(oldStr->substring(0, offset));
dispatchModifiedEvent(oldStr.get());
if (parentNode())
parentNode()->insertBefore(newText.get(), nextSibling(), ec);
if (ec)
return 0;
if (parentNode())
document()->textNodeSplit(this);
if (renderer())
toRenderText(renderer())->setTextWithOffset(dataImpl(), 0, oldStr->length());
return newText.release();
}
PassRefPtr<Text> Text::replaceWholeText(const String& newText, ExceptionCode&)
{
// Remove all adjacent text nodes, and replace the contents of this one.
if (this->parent()) {if (!RO_check(this->parent())) return 0;}
// 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();
}
void HTMLOptionElement::setSelected(bool selected)
{
if (!RO_check(this)) return;
if (m_data.selected() == selected)
return;
OptionElement::setSelectedState(m_data, this, selected);
if (HTMLSelectElement* select = ownerSelectElement())
select->setSelectedIndex(selected ? index() : -1, false);
}
void HTMLOptionElement::setText(const String &text, ExceptionCode& ec)
{
if (!RO_check(this)) return;
// Handle the common special case where there's exactly 1 child node, and it's a text node.
Node* child = firstChild();
if (child && child->isTextNode() && !child->nextSibling()) {
static_cast<Text *>(child)->setData(text, ec);
return;
}
removeChildren();
appendChild(Text::create(document(), text), ec);
}
