Web MIDI: make MidiManagerMac notify device connections

content/renderer/media/midi_message_filter.cc

Index: content/renderer/media/midi_message_filter.cc
diff --git a/content/renderer/media/midi_message_filter.cc b/content/renderer/media/midi_message_filter.cc
index 03a9d00001fa81cce9564560219604641281b4d2..258d04d615aee60f892f2e2a72a49a3377b8c206 100644
--- a/content/renderer/media/midi_message_filter.cc
+++ b/content/renderer/media/midi_message_filter.cc
@@ -116,6 +116,8 @@ bool MidiMessageFilter::OnMessageReceived(const IPC::Message& message) {
     IPC_MESSAGE_HANDLER(MidiMsg_SessionStarted, OnSessionStarted)
     IPC_MESSAGE_HANDLER(MidiMsg_AddInputPort, OnAddInputPort)
     IPC_MESSAGE_HANDLER(MidiMsg_AddOutputPort, OnAddOutputPort)
+    IPC_MESSAGE_HANDLER(MidiMsg_SetInputPortState, OnSetInputPortState)
+    IPC_MESSAGE_HANDLER(MidiMsg_SetOutputPortState, OnSetOutputPortState)
     IPC_MESSAGE_HANDLER(MidiMsg_DataReceived, OnDataReceived)
     IPC_MESSAGE_HANDLER(MidiMsg_AcknowledgeSentData, OnAcknowledgeSentData)
     IPC_MESSAGE_UNHANDLED(handled = false)
@@ -163,6 +165,24 @@ void MidiMessageFilter::OnAddOutputPort(media::MidiPortInfo info) {
       base::Bind(&MidiMessageFilter::HandleAddOutputPort, this, info));
 }
 
+void MidiMessageFilter::OnSetInputPortState(uint32 port,
+                                            media::MidiPortState state) {
+  DCHECK(io_message_loop_->BelongsToCurrentThread());
+  main_message_loop_->PostTask(
+      FROM_HERE,
+      base::Bind(&MidiMessageFilter::HandleSetInputPortState,
+                 this, port, state));
+}
+
+void MidiMessageFilter::OnSetOutputPortState(uint32 port,
+                                             media::MidiPortState state) {
+  DCHECK(io_message_loop_->BelongsToCurrentThread());
+  main_message_loop_->PostTask(
+      FROM_HERE,
+      base::Bind(&MidiMessageFilter::HandleSetOutputPortState,
+                 this, port, state));
+}
+
 void MidiMessageFilter::OnDataReceived(uint32 port,
                                        const std::vector<uint8>& data,
                                        double timestamp) {
@@ -265,4 +285,18 @@ void MidiMessageFilter::HandleAckknowledgeSentData(size_t bytes_sent) {
     unacknowledged_bytes_sent_ -= bytes_sent;
 }
 
+void MidiMessageFilter::HandleSetInputPortState(uint32 port,
+                                                media::MidiPortState state) {
+  DCHECK(main_message_loop_->BelongsToCurrentThread());
+  inputs_[port].state = state;
+  // TODO(toyoshim): Notify to all clients.
+}
+
+void MidiMessageFilter::HandleSetOutputPortState(uint32 port,
+                                                 media::MidiPortState state) {
+  DCHECK(main_message_loop_->BelongsToCurrentThread());
+  outputs_[port].state = state;
+  // TODO(toyoshim): Notify to all clients.
+}
+
 }  // namespace content