static EncodedJSValue JSC_HOST_CALL constructAudio(ExecState* exec)
{
JSAudioConstructor* jsConstructor = static_cast<JSAudioConstructor*>(exec->callee());
Document* document = jsConstructor->document();
if (!document)
return throwVMError(exec, createReferenceError(exec, "Audio constructor associated document is unavailable"));
// Calling toJS on the document causes the JS document wrapper to be
// added to the window object. This is done to ensure that JSDocument::visitChildren
// will be called, which will cause the audio element to be marked if necessary.
toJS(exec, jsConstructor->globalObject(), document);
// FIXME: This converts an undefined argument to the string "undefined", but possibly we
// should treat it as if no argument was passed instead, by checking the value of exec->argument
// rather than looking at exec->argumentCount.
String src;
if (exec->argumentCount() > 0)
src = ustringToString(exec->argument(0).toString(exec));
return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(),
HTMLAudioElement::createForJSConstructor(document, src))));
}
static JSObject* constructAudio(ExecState* exec, JSObject* constructor, const ArgList& args)
{
JSAudioConstructor* jsAudio = static_cast<JSAudioConstructor*>(constructor);
// FIXME: Why doesn't this need the call toJS on the document like JSImageConstructor?
Document* document = jsAudio->document();
if (!document)
return throwError(exec, ReferenceError, "Audio constructor associated document is unavailable");
RefPtr<HTMLAudioElement> audio = new HTMLAudioElement(HTMLNames::audioTag, document);
audio->setAutobuffer(true);
if (args.size() > 0) {
audio->setSrc(args.at(0).toString(exec));
audio->scheduleLoad();
}
return asObject(toJS(exec, jsAudio->globalObject(), audio.release()));
}