src/components/sync_driver/device_info_data_type_controller.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 "components/sync_driver/device_info_data_type_controller.h"
   6
   7 #include "base/callback.h"
   8 #include "components/sync_driver/local_device_info_provider.h"
   9
  10 namespace sync_driver {
  11
  12 DeviceInfoDataTypeController::DeviceInfoDataTypeController(
  13     const scoped_refptr<base::MessageLoopProxy>& ui_thread,
  14     const base::Closure& error_callback,
  15     SyncApiComponentFactory* sync_factory,
  16     LocalDeviceInfoProvider* local_device_info_provider)
  17     : UIDataTypeController(
  18           ui_thread,
  19           error_callback,
  20           syncer::DEVICE_INFO,
  21           sync_factory),
  22       local_device_info_provider_(local_device_info_provider) {
  23 }
  24
  25 DeviceInfoDataTypeController::~DeviceInfoDataTypeController() {
  26 }
  27
  28 bool DeviceInfoDataTypeController::StartModels() {
  29   // Start the data type as soon as the local device info gets available.
  30   if (local_device_info_provider_->GetLocalDeviceInfo()) {
  31     return true;
  32   }
  33
  34   subscription_ = local_device_info_provider_->RegisterOnInitializedCallback(
  35       base::Bind(&DeviceInfoDataTypeController::OnLocalDeviceInfoLoaded, this));
  36
  37   return false;
  38 }
  39
  40 void DeviceInfoDataTypeController::OnLocalDeviceInfoLoaded() {
  41   DCHECK_EQ(state_, MODEL_STARTING);
  42   DCHECK(local_device_info_provider_->GetLocalDeviceInfo());
  43
  44   subscription_.reset();
  45   OnModelLoaded();
  46 }
  47
  48 }  // namespace sync_driver