mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-01 00:32:11 +00:00
104 lines
3.3 KiB
C++
104 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim:set ts=2 sw=2 sts=2 et cindent: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "mozilla/dom/MIDIOutput.h"
|
|
#include "mozilla/dom/MIDIPortChild.h"
|
|
#include "mozilla/dom/MIDITypes.h"
|
|
#include "mozilla/dom/MIDIOutputBinding.h"
|
|
#include "mozilla/dom/MIDIUtils.h"
|
|
#include "nsDOMNavigationTiming.h"
|
|
#include "mozilla/ErrorResult.h"
|
|
#include "mozilla/TimeStamp.h"
|
|
#include "mozilla/dom/Document.h"
|
|
#include "mozilla/dom/Performance.h"
|
|
|
|
using namespace mozilla;
|
|
using namespace mozilla::dom;
|
|
|
|
MIDIOutput::MIDIOutput(nsPIDOMWindowInner* aWindow,
|
|
MIDIAccess* aMIDIAccessParent)
|
|
: MIDIPort(aWindow, aMIDIAccessParent) {}
|
|
|
|
// static
|
|
MIDIOutput* MIDIOutput::Create(nsPIDOMWindowInner* aWindow,
|
|
MIDIAccess* aMIDIAccessParent,
|
|
const MIDIPortInfo& aPortInfo,
|
|
const bool aSysexEnabled) {
|
|
MOZ_ASSERT(static_cast<MIDIPortType>(aPortInfo.type()) ==
|
|
MIDIPortType::Output);
|
|
auto* port = new MIDIOutput(aWindow, aMIDIAccessParent);
|
|
if (NS_WARN_IF(!port->Initialize(aPortInfo, aSysexEnabled))) {
|
|
return nullptr;
|
|
}
|
|
return port;
|
|
}
|
|
|
|
JSObject* MIDIOutput::WrapObject(JSContext* aCx,
|
|
JS::Handle<JSObject*> aGivenProto) {
|
|
return MIDIOutput_Binding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
void MIDIOutput::Send(const Sequence<uint8_t>& aData,
|
|
const Optional<double>& aTimestamp, ErrorResult& aRv) {
|
|
if (Port()->DeviceState() == MIDIPortDeviceState::Disconnected) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
// The timestamp passed to us is a DOMHighResTimestamp, which is in relation
|
|
// to the start of navigation timing. This needs to be turned into a
|
|
// TimeStamp before it hits the platform specific MIDI service.
|
|
//
|
|
// If timestamp is either not set or zero, set timestamp to now and send the
|
|
// message ASAP.
|
|
TimeStamp timestamp;
|
|
if (aTimestamp.WasPassed() && aTimestamp.Value() != 0) {
|
|
nsCOMPtr<Document> doc = GetOwner()->GetDoc();
|
|
if (!doc) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
TimeDuration ts_diff = TimeDuration::FromMilliseconds(aTimestamp.Value());
|
|
timestamp = GetOwner()
|
|
->GetPerformance()
|
|
->GetDOMTiming()
|
|
->GetNavigationStartTimeStamp() +
|
|
ts_diff;
|
|
} else {
|
|
timestamp = TimeStamp::Now();
|
|
}
|
|
|
|
nsTArray<MIDIMessage> msgArray;
|
|
bool ret = MIDIUtils::ParseMessages(aData, timestamp, msgArray);
|
|
if (!ret) {
|
|
aRv.ThrowTypeError("Invalid MIDI message");
|
|
return;
|
|
}
|
|
|
|
if (msgArray.IsEmpty()) {
|
|
aRv.ThrowTypeError("Empty message array");
|
|
return;
|
|
}
|
|
|
|
// TODO Move this check back to parse message so we don't have to iterate
|
|
// twice.
|
|
if (!SysexEnabled()) {
|
|
for (auto& msg : msgArray) {
|
|
if (MIDIUtils::IsSysexMessage(msg)) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
Port()->SendSend(msgArray);
|
|
}
|
|
|
|
void MIDIOutput::Clear() {
|
|
if (Port()->ConnectionState() == MIDIPortConnectionState::Closed) {
|
|
return;
|
|
}
|
|
Port()->SendClear();
|
|
}
|