mirror of
https://github.com/mozilla/gecko-dev.git
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107 lines
3.3 KiB
C++
107 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/MIDIPortParent.h"
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#include "mozilla/dom/MIDIPlatformService.h"
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#include "nsContentUtils.h"
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// C++ file contents
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namespace mozilla::dom {
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// Keep an internal ID that we can use for passing information about specific
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// MIDI ports back and forth to the Rust libraries.
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static uint32_t gId = 0;
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mozilla::ipc::IPCResult MIDIPortParent::RecvSend(
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nsTArray<MIDIMessage>&& aMsgs) {
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if (mConnectionState != MIDIPortConnectionState::Open) {
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mMessageQueue.AppendElements(aMsgs);
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if (MIDIPlatformService::IsRunning()) {
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MIDIPlatformService::Get()->Open(this);
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}
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return IPC_OK();
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}
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if (MIDIPlatformService::IsRunning()) {
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MIDIPlatformService::Get()->QueueMessages(MIDIPortInterface::mId, aMsgs);
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}
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return IPC_OK();
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}
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mozilla::ipc::IPCResult MIDIPortParent::RecvOpen() {
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if (MIDIPlatformService::IsRunning() &&
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mConnectionState == MIDIPortConnectionState::Closed) {
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MIDIPlatformService::Get()->Open(this);
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}
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return IPC_OK();
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}
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mozilla::ipc::IPCResult MIDIPortParent::RecvClose() {
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if (mConnectionState != MIDIPortConnectionState::Closed) {
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if (MIDIPlatformService::IsRunning()) {
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MIDIPlatformService::Get()->Close(this);
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}
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}
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return IPC_OK();
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}
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mozilla::ipc::IPCResult MIDIPortParent::RecvClear() {
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if (MIDIPlatformService::IsRunning()) {
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MIDIPlatformService::Get()->Clear(this);
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}
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return IPC_OK();
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}
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mozilla::ipc::IPCResult MIDIPortParent::RecvShutdown() {
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if (mShuttingDown) {
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return IPC_OK();
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}
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Close();
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return IPC_OK();
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}
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void MIDIPortParent::ActorDestroy(ActorDestroyReason) {
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mMessageQueue.Clear();
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MIDIPortInterface::Shutdown();
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if (MIDIPlatformService::IsRunning()) {
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MIDIPlatformService::Get()->RemovePort(this);
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}
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}
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bool MIDIPortParent::SendUpdateStatus(
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const MIDIPortDeviceState& aDeviceState,
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const MIDIPortConnectionState& aConnectionState) {
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if (mShuttingDown) {
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return true;
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}
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mDeviceState = aDeviceState;
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mConnectionState = aConnectionState;
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if (aConnectionState == MIDIPortConnectionState::Open &&
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aDeviceState == MIDIPortDeviceState::Disconnected) {
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mConnectionState = MIDIPortConnectionState::Pending;
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} else if (aConnectionState == MIDIPortConnectionState::Open &&
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aDeviceState == MIDIPortDeviceState::Connected &&
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!mMessageQueue.IsEmpty()) {
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if (MIDIPlatformService::IsRunning()) {
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MIDIPlatformService::Get()->QueueMessages(MIDIPortInterface::mId,
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mMessageQueue);
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}
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mMessageQueue.Clear();
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}
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return PMIDIPortParent::SendUpdateStatus(
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static_cast<uint32_t>(mDeviceState),
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static_cast<uint32_t>(mConnectionState));
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}
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MIDIPortParent::MIDIPortParent(const MIDIPortInfo& aPortInfo,
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const bool aSysexEnabled)
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: MIDIPortInterface(aPortInfo, aSysexEnabled), mInternalId(++gId) {
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MOZ_ASSERT(MIDIPlatformService::IsRunning(),
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"Shouldn't be able to add MIDI port without MIDI service!");
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MIDIPlatformService::Get()->AddPort(this);
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}
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} // namespace mozilla::dom
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