Add a partial Mojo serial connection interface and implementation.

device/serial/serial_service_impl.cc

 // Copyright 2014 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 "device/serial/serial_service_impl.h"
 
 #include "base/bind.h"
 #include "base/location.h"
+#include "device/serial/serial_io_handler.h"
 
 namespace device {
 
-SerialServiceImpl::SerialServiceImpl() {
+SerialServiceImpl::SerialServiceImpl(
+    scoped_refptr<SerialConnectionFactory> connection_factory)
+    : connection_factory_(connection_factory) {
+}
+
+SerialServiceImpl::SerialServiceImpl(
+    scoped_refptr<SerialConnectionFactory> connection_factory,
+    scoped_ptr<SerialDeviceEnumerator> device_enumerator)
+    : device_enumerator_(device_enumerator.Pass()),
+      connection_factory_(connection_factory) {
 }
 
 SerialServiceImpl::~SerialServiceImpl() {
 }
 
 // static
 void SerialServiceImpl::Create(
+    scoped_refptr<base::MessageLoopProxy> io_message_loop,
     mojo::InterfaceRequest<serial::SerialService> request) {
-  mojo::BindToRequest(new SerialServiceImpl(), &request);
+  mojo::BindToRequest(new SerialServiceImpl(new SerialConnectionFactory(
+                          base::Bind(SerialIoHandler::Create,
+                                     base::MessageLoopProxy::current()),
+                          io_message_loop)),
+                      &request);
 }
 
 // static
 void SerialServiceImpl::CreateOnMessageLoop(
     scoped_refptr<base::MessageLoopProxy> message_loop,
+    scoped_refptr<base::MessageLoopProxy> io_message_loop,
     mojo::InterfaceRequest<serial::SerialService> request) {
   message_loop->PostTask(
       FROM_HERE,
-      base::Bind(&SerialServiceImpl::Create, base::Passed(&request)));
+      base::Bind(
+          &SerialServiceImpl::Create, io_message_loop, base::Passed(&request)));
 }
 
 void SerialServiceImpl::GetDevices(
     const mojo::Callback<void(mojo::Array<serial::DeviceInfoPtr>)>& callback) {
-  if (!device_enumerator_)
-    device_enumerator_ = SerialDeviceEnumerator::Create();
-  callback.Run(device_enumerator_->GetDevices());
+  callback.Run(GetDeviceEnumerator()->GetDevices());
+}
+
+void SerialServiceImpl::Connect(
+    const mojo::String& path,
+    serial::ConnectionOptionsPtr options,
+    mojo::InterfaceRequest<serial::Connection> connection_request) {
+  if (!IsValidPath(path))
+    return;
+  connection_factory_->CreateConnection(
+      path, options.Pass(), connection_request.Pass());
 }
 
 void SerialServiceImpl::OnConnectionError() {
   delete this;
 }
 
+SerialDeviceEnumerator* SerialServiceImpl::GetDeviceEnumerator() {
+  if (!device_enumerator_)
+    device_enumerator_ = SerialDeviceEnumerator::Create();
+  return device_enumerator_.get();
+}
+
+bool SerialServiceImpl::IsValidPath(const mojo::String& path) {
+  mojo::Array<serial::DeviceInfoPtr> devices(
+      GetDeviceEnumerator()->GetDevices());
+  for (size_t i = 0; i < devices.size(); i++) {
+    if (path == devices[i]->path)
+      return true;
+  }
+  return false;
+}
+
+void SerialServiceImpl::OnConnected(
+    const mojo::Callback<void(serial::ConnectionInfoPtr)>& callback,
+    serial::ConnectionInfoPtr result) {
+  callback.Run(result.Pass());
+}
+
 }  // namespace device