device/battery/battery_monitor_impl.h

   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 #ifndef DEVICE_BATTERY_BATTERY_MONITOR_IMPL_H_
   6 #define DEVICE_BATTERY_BATTERY_MONITOR_IMPL_H_
   7
   8 #include <vector>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "device/battery/battery_export.h"
  12 #include "device/battery/battery_monitor.mojom.h"
  13 #include "device/battery/battery_status_service.h"
  14 #include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h"
  15
  16 namespace device {
  17
  18 class BatteryMonitorImpl : public BatteryMonitor {
  19  public:
  20   DEVICE_BATTERY_EXPORT static void Create(
  21       mojo::InterfaceRequest<BatteryMonitor> request);
  22
  23  private:
  24   typedef mojo::Callback<void(BatteryStatusPtr)> BatteryStatusCallback;
  25
  26   explicit BatteryMonitorImpl(mojo::InterfaceRequest<BatteryMonitor> request);
  27   ~BatteryMonitorImpl() override;
  28
  29   // BatteryMonitor methods:
  30   void QueryNextStatus(const BatteryStatusCallback& callback) override;
  31
  32   void RegisterSubscription();
  33   void DidChange(const BatteryStatus& battery_status);
  34   void ReportStatus();
  35
  36   mojo::StrongBinding<BatteryMonitor> binding_;
  37   scoped_ptr<BatteryStatusService::BatteryUpdateSubscription> subscription_;
  38   std::vector<BatteryStatusCallback> callbacks_;
  39   BatteryStatus status_;
  40   bool status_to_report_;
  41
  42   DISALLOW_COPY_AND_ASSIGN(BatteryMonitorImpl);
  43 };
  44
  45 }  // namespace device
  46
  47 #endif  // DEVICE_BATTERY_BATTERY_MONITOR_IMPL_H_