dom/midi/TestMIDIPlatformService.h

   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 #ifndef mozilla_dom_TestMIDIPlatformService_h
   8 #define mozilla_dom_TestMIDIPlatformService_h
   9
  10 #include "mozilla/dom/MIDIPlatformService.h"
  11 #include "mozilla/dom/MIDITypes.h"
  12
  13 class nsIThread;
  14
  15 namespace mozilla::dom {
  16
  17 class MIDIPortInterface;
  18
  19 /**
  20  * Platform service implementation used for mochitests. Emulates what a real
  21  * platform service should look like, including using an internal IO thread for
  22  * message IO.
  23  *
  24  */
  25 class TestMIDIPlatformService : public MIDIPlatformService {
  26  public:
  27   TestMIDIPlatformService();
  28   virtual void Init() override;
  29   virtual void Open(MIDIPortParent* aPort) override;
  30   virtual void Stop() override;
  31   virtual void ScheduleSend(const nsAString& aPort) override;
  32   virtual void ScheduleClose(MIDIPortParent* aPort) override;
  33   // MIDI Service simulation function. Can take specially formed sysex messages
  34   // in order to trigger device connection events and state changes,
  35   // interrupting messages for high priority sysex sends, etc...
  36   void ProcessMessages(const nsAString& aPort);
  37
  38  private:
  39   virtual ~TestMIDIPlatformService();
  40   // Convenience object for sending runnables to the background thread. All
  41   // runnables are pushed to the background thread, and check for existence of a
  42   // manager object on the thread before running.
  43   nsCOMPtr<nsIThread> mBackgroundThread;
  44   // Port that takes test control messages
  45   MIDIPortInfo mControlInputPort;
  46   // Port that returns test status messages
  47   MIDIPortInfo mControlOutputPort;
  48   // Used for testing input connection/disconnection
  49   MIDIPortInfo mStateTestInputPort;
  50   // Used for testing output connection/disconnection
  51   MIDIPortInfo mStateTestOutputPort;
  52   // Used for testing open() call failures
  53   MIDIPortInfo mAlwaysClosedTestOutputPort;
  54   // IO Simulation thread. Runs all instances of ProcessMessages().
  55   nsCOMPtr<nsIThread> mClientThread;
  56   // True if server has been brought up already.
  57   bool mIsInitialized;
  58 };
  59
  60 }  // namespace mozilla::dom
  61
  62 #endif  // mozilla_dom_TestMIDIPlatformService_h