JSValue JSMediaDevices::getUserMedia(ExecState* exec)
{
    JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(exec, globalObject());
    DeferredWrapper wrapper(exec, globalObject(), promiseDeferred);

    Dictionary options(exec, exec->argument(0));
    if (exec->hadException()) {
        Exception* exception = exec->exception();
        exec->clearException();
        wrapper.reject(exception->value());
        return promiseDeferred->promise();
    }

    if (!options.isObject()) {
        JSValue error = createTypeError(exec, "First argument of getUserMedia must be a valid Dictionary");
        wrapper.reject(error);
        return promiseDeferred->promise();
    }

    auto resolveCallback = [wrapper](MediaStream& stream) mutable {
        wrapper.resolve(&stream);
    };
    auto rejectCallback = [wrapper](NavigatorUserMediaError& error) mutable {
        wrapper.reject(&error);
    };

    ExceptionCode ec = 0;
    impl().getUserMedia(options, WTF::move(resolveCallback), WTF::move(rejectCallback), ec);
    if (ec)
        wrapper.reject(ec);

    return promiseDeferred->promise();
}
Beispiel #2
0
static ExceptionStatus handleExceptionIfNeeded(ExecState* exec, JSValueRef* returnedExceptionRef)
{
    if (exec->hadException()) {
        Exception* exception = exec->exception();
        if (returnedExceptionRef)
            *returnedExceptionRef = toRef(exec, exception->value());
        exec->clearException();
#if ENABLE(REMOTE_INSPECTOR)
        exec->vmEntryGlobalObject()->inspectorController().reportAPIException(exec, exception);
#endif
        return ExceptionStatus::DidThrow;
    }
    return ExceptionStatus::DidNotThrow;
}