content/renderer/battery_status/battery_status_dispatcher.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 "content/renderer/battery_status/battery_status_dispatcher.h"
   6
   7 #include "content/public/common/service_registry.h"
   8 #include "content/public/renderer/render_thread.h"
   9 #include "third_party/WebKit/public/platform/WebBatteryStatusListener.h"
  10
  11 namespace content {
  12
  13 BatteryStatusDispatcher::BatteryStatusDispatcher(
  14     blink::WebBatteryStatusListener* listener)
  15     : listener_(listener) {
  16   DCHECK(listener_);
  17
  18   if (ServiceRegistry* registry = RenderThread::Get()->GetServiceRegistry()) {
  19     // registry can be null during testing.
  20     registry->ConnectToRemoteService(mojo::GetProxy(&monitor_));
  21     QueryNextStatus();
  22   }
  23 }
  24
  25 BatteryStatusDispatcher::~BatteryStatusDispatcher() {
  26 }
  27
  28 void BatteryStatusDispatcher::QueryNextStatus() {
  29   monitor_->QueryNextStatus(
  30       base::Bind(&BatteryStatusDispatcher::DidChange, base::Unretained(this)));
  31 }
  32
  33 void BatteryStatusDispatcher::DidChange(
  34     device::BatteryStatusPtr battery_status) {
  35   // monitor_ can be null during testing.
  36   if (monitor_)
  37     QueryNextStatus();
  38
  39   DCHECK(battery_status);
  40
  41   blink::WebBatteryStatus web_battery_status;
  42   web_battery_status.charging = battery_status->charging;
  43   web_battery_status.chargingTime = battery_status->charging_time;
  44   web_battery_status.dischargingTime = battery_status->discharging_time;
  45   web_battery_status.level = battery_status->level;
  46   listener_->updateBatteryStatus(web_battery_status);
  47 }
  48
  49 }  // namespace content