PassRefPtrWillBeRawPtr<MIDIAccess> MIDIAccess::create(ExecutionContext* context, MIDIAccessPromise* promise)
{
RefPtrWillBeRawPtr<MIDIAccess> midiAccess(adoptRefWillBeRefCountedGarbageCollected(new MIDIAccess(context, promise)));
midiAccess->suspendIfNeeded();
midiAccess->startRequest();
return midiAccess.release();
}
void MIDIInput::didReceiveMIDIData(unsigned portIndex, const unsigned char* data, size_t length, double timeStamp)
{
ASSERT(isMainThread());
if (!length)
return;
// Drop sysex message here when the client does not request it. Note that this is not a security check but an
// automatic filtering for clients that do not want sysex message. Also note that sysex message will never be sent
// unless the current process has an explicit permission to handle sysex message.
if (data[0] == 0xf0 && !midiAccess()->sysexEnabled())
return;
RefPtr<Uint8Array> array = Uint8Array::create(data, length);
dispatchEvent(MIDIMessageEvent::create(timeStamp, array));
}