JSValue jsHTMLCollectionLength(ExecState* exec, JSValue slotBase, const Identifier&)
{
JSHTMLCollection* castedThis = static_cast<JSHTMLCollection*>(asObject(slotBase));
UNUSED_PARAM(exec);
HTMLCollection* imp = static_cast<HTMLCollection*>(castedThis->impl());
JSValue result = jsNumber(imp->length());
return result;
}
void WebDocument::forms(WebVector<WebFormElement>& results) const {
HTMLCollection* forms =
const_cast<Document*>(constUnwrap<Document>())->forms();
size_t sourceLength = forms->length();
Vector<WebFormElement> temp;
temp.reserveCapacity(sourceLength);
for (size_t i = 0; i < sourceLength; ++i) {
Element* element = forms->item(i);
// Strange but true, sometimes node can be 0.
if (element && element->isHTMLElement())
temp.append(WebFormElement(toHTMLFormElement(element)));
}
results.assign(temp);
}
HTMLElement* HTMLTableRowElement::insertCell(int index,
ExceptionState& exceptionState) {
HTMLCollection* children = cells();
int numCells = children ? children->length() : 0;
if (index < -1 || index > numCells) {
exceptionState.throwDOMException(
IndexSizeError, "The value provided (" + String::number(index) +
") is outside the range [-1, " +
String::number(numCells) + "].");
return nullptr;
}
HTMLTableCellElement* cell = HTMLTableCellElement::create(tdTag, document());
if (numCells == index || index == -1)
appendChild(cell, exceptionState);
else
insertBefore(cell, children->item(index), exceptionState);
return cell;
}
void HTMLTableRowElement::deleteCell(int index,
ExceptionState& exceptionState) {
HTMLCollection* children = cells();
int numCells = children ? children->length() : 0;
// 1. If index is less than −1 or greater than or equal to the number of
// elements in the cells collection, then throw "IndexSizeError".
if (index < -1 || index >= numCells) {
exceptionState.throwDOMException(
IndexSizeError, "The value provided (" + String::number(index) +
") is outside the range [0, " +
String::number(numCells) + ").");
return;
}
// 2. If index is −1, remove the last element in the cells collection
// from its parent, or do nothing if the cells collection is empty.
if (index == -1) {
if (numCells == 0)
return;
index = numCells - 1;
}
// 3. Remove the indexth element in the cells collection from its parent.
Element* cell = children->item(index);
HTMLElement::removeChild(cell, exceptionState);
}
static v8::Handle<v8::Value> lengthAttrGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
{
INC_STATS("DOM.HTMLCollection.length._get");
HTMLCollection* imp = V8HTMLCollection::toNative(info.Holder());
return v8::Integer::NewFromUnsigned(imp->length());
}
