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 {
  16 namespace dom {
  17
  18 class MIDIPortInterface;
  19
  20 /**
  21  * Platform service implementation used for mochitests. Emulates what a real
  22  * platform service should look like, including using an internal IO thread for
  23  * message IO.
  24  *
  25  */
  26 class TestMIDIPlatformService : public MIDIPlatformService {
  27  public:
  28   TestMIDIPlatformService();
  29   virtual void Init() override;
  30   virtual void Open(MIDIPortParent* aPort) override;
  31   virtual void Stop() override;
  32   virtual void ScheduleSend(const nsAString& aPort) override;
  33   virtual void ScheduleClose(MIDIPortParent* aPort) override;
  34   // MIDI Service simulation function. Can take specially formed sysex messages
  35   // in order to trigger device connection events and state changes,
  36   // interrupting messages for high priority sysex sends, etc...
  37   void ProcessMessages(const nsAString& aPort);
  38
  39  private:
  40   virtual ~TestMIDIPlatformService();
  41   // Convenience object for sending runnables to the background thread. All
  42   // runnables are pushed to the background thread, and check for existence of a
  43   // manager object on the thread before running.
  44   nsCOMPtr<nsIThread> mBackgroundThread;
  45   // Port that takes test control messages
  46   MIDIPortInfo mControlInputPort;
  47   // Port that returns test status messages
  48   MIDIPortInfo mControlOutputPort;
  49   // Used for testing input connection/disconnection
  50   MIDIPortInfo mStateTestInputPort;
  51   // Used for testing output connection/disconnection
  52   MIDIPortInfo mStateTestOutputPort;
  53   // Used for testing open() call failures
  54   MIDIPortInfo mAlwaysClosedTestOutputPort;
  55   // IO Simulation thread. Runs all instances of ProcessMessages().
  56   nsCOMPtr<nsIThread> mClientThread;
  57   // True if server has been brought up already.
  58   bool mIsInitialized;
  59 };
  60
  61 }  // namespace dom
  62 }  // namespace mozilla
  63
  64 #endif  // mozilla_dom_TestMIDIPlatformService_h