content/browser/time_zone_monitor_android.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 CONTENT_BROWSER_TIME_ZONE_MONITOR_ANDROID_H_
   6 #define CONTENT_BROWSER_TIME_ZONE_MONITOR_ANDROID_H_
   7
   8 #include "content/browser/time_zone_monitor.h"
   9
  10 #include <jni.h>
  11
  12 #include "base/android/scoped_java_ref.h"
  13 #include "base/basictypes.h"
  14
  15 namespace content {
  16
  17 class TimeZoneMonitorAndroid : public TimeZoneMonitor {
  18  public:
  19   TimeZoneMonitorAndroid();
  20   ~TimeZoneMonitorAndroid() override;
  21
  22   // Must be called at startup.
  23   static bool Register(JNIEnv* env);
  24
  25   // Called by the Java implementation when the system time zone changes.
  26   void TimeZoneChangedFromJava(JNIEnv* env, jobject caller);
  27
  28  private:
  29   // Java provider of system time zone change notifications.
  30   base::android::ScopedJavaGlobalRef<jobject> impl_;
  31
  32   DISALLOW_COPY_AND_ASSIGN(TimeZoneMonitorAndroid);
  33 };
  34
  35 }  // namespace content
  36
  37 #endif  // CONTENT_BROWSER_TIME_ZONE_MONITOR_ANDROID_H_