content/common/media/midi_messages.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // IPC messages for access to MIDI hardware.
   6 // Multiply-included message file, hence no include guard.
   7
   8 #include "base/basictypes.h"
   9 #include "content/common/content_export.h"
  10 #include "ipc/ipc_message_macros.h"
  11 #include "ipc/param_traits_macros.h"
  12 #include "media/midi/midi_port_info.h"
  13 #include "media/midi/midi_result.h"
  14 #include "url/gurl.h"
  15
  16 #undef IPC_MESSAGE_EXPORT
  17 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
  18 #define IPC_MESSAGE_START MidiMsgStart
  19
  20 IPC_STRUCT_TRAITS_BEGIN(media::MidiPortInfo)
  21   IPC_STRUCT_TRAITS_MEMBER(id)
  22   IPC_STRUCT_TRAITS_MEMBER(manufacturer)
  23   IPC_STRUCT_TRAITS_MEMBER(name)
  24   IPC_STRUCT_TRAITS_MEMBER(version)
  25 IPC_STRUCT_TRAITS_END()
  26
  27 IPC_ENUM_TRAITS_MAX_VALUE(media::MidiResult, media::MIDI_RESULT_LAST)
  28
  29 // Messages for IPC between MidiDispatcher and MidiDispatcherHost.
  30
  31 // Renderer request to browser for using system exclusive messages.
  32 IPC_MESSAGE_ROUTED3(MidiHostMsg_RequestSysExPermission,
  33                     int /* client id */,
  34                     GURL /* origin */,
  35                     bool /* user_gesture */)
  36
  37 // Renderer request to browser for canceling a previous permission request.
  38 IPC_MESSAGE_ROUTED2(MidiHostMsg_CancelSysExPermissionRequest,
  39                      int /* bridge_id */,
  40                      GURL /* GURL of the frame */)
  41
  42 // Messages sent from the browser to the renderer.
  43
  44 IPC_MESSAGE_ROUTED2(MidiMsg_SysExPermissionApproved,
  45                     int /* client id */,
  46                     bool /* is_allowed */)
  47
  48 // Messages for IPC between MidiMessageFilter and MidiHost.
  49
  50 // Renderer request to browser for access to MIDI services.
  51 IPC_MESSAGE_CONTROL1(MidiHostMsg_StartSession,
  52                      int /* client id */)
  53
  54 IPC_MESSAGE_CONTROL3(MidiHostMsg_SendData,
  55                      uint32 /* port */,
  56                      std::vector<uint8> /* data */,
  57                      double /* timestamp */)
  58
  59 // Messages sent from the browser to the renderer.
  60
  61 IPC_MESSAGE_CONTROL4(MidiMsg_SessionStarted,
  62                      int /* client id */,
  63                      media::MidiResult /* result */,
  64                      media::MidiPortInfoList /* input ports */,
  65                      media::MidiPortInfoList /* output ports */)
  66
  67 IPC_MESSAGE_CONTROL3(MidiMsg_DataReceived,
  68                      uint32 /* port */,
  69                      std::vector<uint8> /* data */,
  70                      double /* timestamp */)
  71
  72 IPC_MESSAGE_CONTROL1(MidiMsg_AcknowledgeSentData,
  73                      uint32 /* bytes sent */)