device/serial/serial_service_impl.cc

   1 // Copyright 2014 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 #include "device/serial/serial_service_impl.h"
   6
   7 #include "base/bind.h"
   8 #include "base/location.h"
   9 #include "device/serial/serial_io_handler.h"
  10
  11 namespace device {
  12
  13 SerialServiceImpl::SerialServiceImpl(
  14     scoped_refptr<SerialConnectionFactory> connection_factory)
  15     : connection_factory_(connection_factory) {
  16 }
  17
  18 SerialServiceImpl::SerialServiceImpl(
  19     scoped_refptr<SerialConnectionFactory> connection_factory,
  20     scoped_ptr<SerialDeviceEnumerator> device_enumerator)
  21     : device_enumerator_(device_enumerator.Pass()),
  22       connection_factory_(connection_factory) {
  23 }
  24
  25 SerialServiceImpl::~SerialServiceImpl() {
  26 }
  27
  28 // static
  29 void SerialServiceImpl::Create(
  30     scoped_refptr<base::MessageLoopProxy> io_message_loop,
  31     scoped_refptr<base::MessageLoopProxy> ui_message_loop,
  32     mojo::InterfaceRequest<serial::SerialService> request) {
  33   mojo::BindToRequest(new SerialServiceImpl(new SerialConnectionFactory(
  34                           base::Bind(SerialIoHandler::Create,
  35                                      base::MessageLoopProxy::current(),
  36                                      ui_message_loop),
  37                           io_message_loop)),
  38                       &request);
  39 }
  40
  41 // static
  42 void SerialServiceImpl::CreateOnMessageLoop(
  43     scoped_refptr<base::MessageLoopProxy> message_loop,
  44     scoped_refptr<base::MessageLoopProxy> io_message_loop,
  45     scoped_refptr<base::MessageLoopProxy> ui_message_loop,
  46     mojo::InterfaceRequest<serial::SerialService> request) {
  47   message_loop->PostTask(FROM_HERE,
  48                          base::Bind(&SerialServiceImpl::Create,
  49                                     io_message_loop,
  50                                     ui_message_loop,
  51                                     base::Passed(&request)));
  52 }
  53
  54 void SerialServiceImpl::GetDevices(
  55     const mojo::Callback<void(mojo::Array<serial::DeviceInfoPtr>)>& callback) {
  56   callback.Run(GetDeviceEnumerator()->GetDevices());
  57 }
  58
  59 void SerialServiceImpl::Connect(
  60     const mojo::String& path,
  61     serial::ConnectionOptionsPtr options,
  62     mojo::InterfaceRequest<serial::Connection> connection_request,
  63     mojo::InterfaceRequest<serial::DataSink> sink,
  64     mojo::InterfaceRequest<serial::DataSource> source) {
  65   if (!IsValidPath(path))
  66     return;
  67   connection_factory_->CreateConnection(path,
  68                                         options.Pass(),
  69                                         connection_request.Pass(),
  70                                         sink.Pass(),
  71                                         source.Pass());
  72 }
  73
  74 SerialDeviceEnumerator* SerialServiceImpl::GetDeviceEnumerator() {
  75   if (!device_enumerator_)
  76     device_enumerator_ = SerialDeviceEnumerator::Create();
  77   return device_enumerator_.get();
  78 }
  79
  80 bool SerialServiceImpl::IsValidPath(const mojo::String& path) {
  81   mojo::Array<serial::DeviceInfoPtr> devices(
  82       GetDeviceEnumerator()->GetDevices());
  83   for (size_t i = 0; i < devices.size(); i++) {
  84     if (path == devices[i]->path)
  85       return true;
  86   }
  87   return false;
  88 }
  89
  90 }  // namespace device