background_task_update_scheduler.h 1.8 KB

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  1. // Copyright 2018 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. #ifndef COMPONENTS_COMPONENT_UPDATER_ANDROID_BACKGROUND_TASK_UPDATE_SCHEDULER_H_
  5. #define COMPONENTS_COMPONENT_UPDATER_ANDROID_BACKGROUND_TASK_UPDATE_SCHEDULER_H_
  6. #include <jni.h>
  7. #include "base/android/scoped_java_ref.h"
  8. #include "base/callback.h"
  9. #include "base/memory/weak_ptr.h"
  10. #include "components/component_updater/update_scheduler.h"
  11. namespace component_updater {
  12. // Native-side implementation of the component update scheduler using the
  13. // BackgroundTaskScheduler.
  14. class BackgroundTaskUpdateScheduler : public UpdateScheduler {
  15. public:
  16. // Returns true if this scheduler can be used.
  17. static bool IsAvailable();
  18. BackgroundTaskUpdateScheduler();
  19. BackgroundTaskUpdateScheduler(const BackgroundTaskUpdateScheduler&) = delete;
  20. BackgroundTaskUpdateScheduler& operator=(
  21. const BackgroundTaskUpdateScheduler&) = delete;
  22. ~BackgroundTaskUpdateScheduler() override;
  23. // UpdateScheduler:
  24. void Schedule(const base::TimeDelta& initial_delay,
  25. const base::TimeDelta& delay,
  26. const UserTask& user_task,
  27. const OnStopTaskCallback& on_stop) override;
  28. void Stop() override;
  29. // JNI:
  30. void OnStartTask(JNIEnv* env,
  31. const base::android::JavaParamRef<jobject>& obj);
  32. void OnStopTask(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
  33. private:
  34. void OnStartTaskDelayed();
  35. base::android::ScopedJavaGlobalRef<jobject> j_update_scheduler_;
  36. UserTask user_task_;
  37. OnStopTaskCallback on_stop_;
  38. base::WeakPtrFactory<BackgroundTaskUpdateScheduler> weak_ptr_factory_{this};
  39. };
  40. } // namespace component_updater
  41. #endif // COMPONENTS_COMPONENT_UPDATER_ANDROID_BACKGROUND_TASK_UPDATE_SCHEDULER_H_