| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_ANDROID_NTP_NTP_SNIPPETS_LAUNCHER_H_ |
| #define CHROME_BROWSER_ANDROID_NTP_NTP_SNIPPETS_LAUNCHER_H_ |
| |
| #include "base/android/jni_android.h" |
| #include "base/lazy_instance.h" |
| #include "base/macros.h" |
| #include "base/time/time.h" |
| #include "components/ntp_snippets/remote/persistent_scheduler.h" |
| |
| // Android implementation of ntp_snippets::NTPSnippetsScheduler. |
| // The NTPSnippetsLauncher singleton owns the Java SnippetsLauncher object, and |
| // is used to schedule the fetching of snippets. Runs on the UI thread. |
| class NTPSnippetsLauncher : public ntp_snippets::PersistentScheduler { |
| public: |
| static NTPSnippetsLauncher* Get(); |
| |
| // ntp_snippets::NTPSnippetsScheduler implementation. |
| bool Schedule(base::TimeDelta period_wifi, |
| base::TimeDelta period_fallback) override; |
| bool Unschedule() override; |
| bool IsOnUnmeteredConnection() override; |
| |
| private: |
| friend struct base::LazyInstanceTraitsBase<NTPSnippetsLauncher>; |
| |
| // Constructor and destructor marked private to enforce singleton. |
| NTPSnippetsLauncher(); |
| virtual ~NTPSnippetsLauncher(); |
| |
| base::android::ScopedJavaGlobalRef<jobject> java_launcher_; |
| |
| DISALLOW_COPY_AND_ASSIGN(NTPSnippetsLauncher); |
| }; |
| |
| #endif // CHROME_BROWSER_ANDROID_NTP_NTP_SNIPPETS_LAUNCHER_H_ |