dom/midi/MIDIInput.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/dom/MIDIInput.h"
   8 #include "mozilla/dom/Document.h"
   9 #include "mozilla/dom/MIDIPortChild.h"
  10 #include "mozilla/dom/MIDIInputBinding.h"
  11 #include "mozilla/dom/MIDIMessageEvent.h"
  12 #include "mozilla/dom/MIDIMessageEventBinding.h"
  13 #include "nsDOMNavigationTiming.h"
  14
  15 namespace mozilla::dom {
  16
  17 MIDIInput::MIDIInput(nsPIDOMWindowInner* aWindow, MIDIAccess* aMIDIAccessParent)
  18     : MIDIPort(aWindow, aMIDIAccessParent) {}
  19
  20 // static
  21 MIDIInput* MIDIInput::Create(nsPIDOMWindowInner* aWindow,
  22                              MIDIAccess* aMIDIAccessParent,
  23                              const MIDIPortInfo& aPortInfo,
  24                              const bool aSysexEnabled) {
  25   MOZ_ASSERT(static_cast<MIDIPortType>(aPortInfo.type()) ==
  26              MIDIPortType::Input);
  27   auto port = new MIDIInput(aWindow, aMIDIAccessParent);
  28   if (!port->Initialize(aPortInfo, aSysexEnabled)) {
  29     return nullptr;
  30   }
  31   return port;
  32 }
  33
  34 JSObject* MIDIInput::WrapObject(JSContext* aCx,
  35                                 JS::Handle<JSObject*> aGivenProto) {
  36   return MIDIInput_Binding::Wrap(aCx, this, aGivenProto);
  37 }
  38
  39 void MIDIInput::Receive(const nsTArray<MIDIMessage>& aMsgs) {
  40   nsCOMPtr<Document> doc = GetOwner() ? GetOwner()->GetDoc() : nullptr;
  41   if (!doc) {
  42     NS_WARNING("No document available to send MIDIMessageEvent to!");
  43     return;
  44   }
  45   for (auto& msg : aMsgs) {
  46     RefPtr<MIDIMessageEvent> event(
  47         MIDIMessageEvent::Constructor(this, msg.timestamp(), msg.data()));
  48     DispatchTrustedEvent(event);
  49   }
  50 }
  51
  52 EventHandlerNonNull* MIDIInput::GetOnmidimessage() {
  53   return GetEventHandler(nsGkAtoms::onmidimessage);
  54 }
  55
  56 void MIDIInput::SetOnmidimessage(EventHandlerNonNull* aCallback) {
  57   SetEventHandler(nsGkAtoms::onmidimessage, aCallback);
  58   if (mPort->ConnectionState() != MIDIPortConnectionState::Open) {
  59     mPort->SendOpen();
  60   }
  61 }
  62
  63 }  // namespace mozilla::dom