Web MIDI: make MidiManagerMac notify device connections

media/midi/midi_manager.cc

 // 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.
 
 #include "media/midi/midi_manager.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "base/message_loop/message_loop.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 112 matching lines @@
     client->AddInputPort(info);
 }
 
 void MidiManager::AddOutputPort(const MidiPortInfo& info) {
   base::AutoLock auto_lock(lock_);
   output_ports_.push_back(info);
   for (auto client : clients_)
     client->AddOutputPort(info);
 }
 
+void MidiManager::SetInputPortState(uint32 port_index, bool connected) {
+  base::AutoLock auto_lock(lock_);
+  DCHECK_LT(port_index, input_ports_.size());
+  input_ports_[port_index].connected = connected;
+  for (auto client : clients_)
+    client->SetInputPortState(port_index, connected);
+}
+
+void MidiManager::SetOutputPortState(uint32 port_index, bool connected) {
+  base::AutoLock auto_lock(lock_);
+  DCHECK_LT(port_index, output_ports_.size());
+  output_ports_[port_index].connected = connected;
+  for (auto client : clients_)
+    client->SetOutputPortState(port_index, connected);
+}
+
 void MidiManager::ReceiveMidiData(
     uint32 port_index,
     const uint8* data,
     size_t length,
     double timestamp) {
   base::AutoLock auto_lock(lock_);
 
   for (auto client : clients_)
     client->ReceiveMidiData(port_index, data, length, timestamp);
 }
@@ skipping 20 matching lines @@
 void MidiManager::AddInitialPorts(MidiManagerClient* client) {
   lock_.AssertAcquired();
 
   for (const auto& info : input_ports_)
     client->AddInputPort(info);
   for (const auto& info : output_ports_)
     client->AddOutputPort(info);
 }
 
 }  // namespace media