Web MIDI: make MidiManagerMac notify device connections

media/midi/midi_manager_mac.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_MIDI_MIDI_MANAGER_MAC_H_
 #define MEDIA_MIDI_MIDI_MANAGER_MAC_H_
 
 #include <CoreMIDI/MIDIServices.h>
 #include <map>
 #include <string>
@@ skipping 24 matching lines @@
   // Runs a closure on |client_thread_|. It starts the thread if it isn't
   // running and the destructor isn't called.
   // Caller can bind base::Unretained(this) to |closure| since we join
   // |client_thread_| in the destructor.
   void RunOnClientThread(const base::Closure& closure);
 
   // Initializes CoreMIDI on |client_thread_| asynchronously. Called from
   // StartInitialization().
   void InitializeCoreMIDI();
 
+  // CoreMIDI callback for MIDI notification.
+  // Receives MIDI related event notifications from CoreMIDI.
+  static void ReceiveMidiNotifyDispatch(const MIDINotification* message,
+                                        void* refcon);
+  void ReceiveMidiNotify(const MIDINotification* message);
+
   // CoreMIDI callback for MIDI data.
   // Each callback can contain multiple packets, each of which can contain
   // multiple MIDI messages.
-  static void ReadMidiDispatch(
-      const MIDIPacketList *pktlist,
-      void *read_proc_refcon,
-      void *src_conn_refcon);
+  static void ReadMidiDispatch(const MIDIPacketList* packet_list,
+                               void* read_proc_refcon,
+                               void* src_conn_refcon);
   virtual void ReadMidi(MIDIEndpointRef source, const MIDIPacketList *pktlist);
 
   // An internal callback that runs on MidiSendThread.
   void SendMidiData(MidiManagerClient* client,
                     uint32 port_index,
                     const std::vector<uint8>& data,
                     double timestamp);
 
   // CoreMIDI
   MIDIClientRef midi_client_;
   MIDIPortRef coremidi_input_;
   MIDIPortRef coremidi_output_;
 
   enum{ kMaxPacketListSize = 512 };
   char midi_buffer_[kMaxPacketListSize];
   MIDIPacketList* packet_list_;
   MIDIPacket* midi_packet_;
 
+  // Keeps track of the index (0-based) for each of our sources.
   typedef std::map<MIDIEndpointRef, uint32> SourceMap;
-
-  // Keeps track of the index (0-based) for each of our sources.
   SourceMap source_map_;
 
   // Keeps track of all destinations.
-  std::vector<MIDIEndpointRef> destinations_;
+  typedef std::vector<MIDIEndpointRef> DestinationVector;
+  DestinationVector destinations_;
 
   // |client_thread_| is used to handle platform dependent operations.
   base::Thread client_thread_;
 
   // Sets true on destructing object to avoid starting |client_thread_| again.
   bool shutdown_;
 
   DISALLOW_COPY_AND_ASSIGN(MidiManagerMac);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_MIDI_MIDI_MANAGER_MAC_H_