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      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 "base/android/scoped_java_ref.h"
      6 #include "base/macros.h"
      7 #include "content/browser/battery_status/battery_status_manager.h"
      8 
      9 #ifndef CHROME_BROWSER_BATTERY_STATUS_BATTERY_STATUS_MANAGER_ANDROID_H_
     10 #define CHROME_BROWSER_BATTERY_STATUS_BATTERY_STATUS_MANAGER_ANDROID_H_
     11 
     12 namespace content {
     13 
     14 class BatteryStatusManagerAndroid : public BatteryStatusManager {
     15  public:
     16   explicit BatteryStatusManagerAndroid(
     17       const BatteryStatusService::BatteryUpdateCallback& callback);
     18   virtual ~BatteryStatusManagerAndroid();
     19 
     20   // Must be called at startup.
     21   static bool Register(JNIEnv* env);
     22 
     23   // Called from Java via JNI.
     24   void GotBatteryStatus(JNIEnv*,
     25                         jobject,
     26                         jboolean charging,
     27                         jdouble charging_time,
     28                         jdouble discharging_time,
     29                         jdouble level);
     30 
     31  private:
     32   // BatteryStatusManager:
     33   virtual bool StartListeningBatteryChange() OVERRIDE;
     34   virtual void StopListeningBatteryChange() OVERRIDE;
     35 
     36   BatteryStatusService::BatteryUpdateCallback callback_;
     37   // Java provider of battery status info.
     38   base::android::ScopedJavaGlobalRef<jobject> j_manager_;
     39 
     40   DISALLOW_COPY_AND_ASSIGN(BatteryStatusManagerAndroid);
     41 };
     42 
     43 }  // namespace content
     44 
     45 #endif  // CHROME_BROWSER_BATTERY_STATUS_BATTERY_STATUS_MANAGER_ANDROID_H_
     46