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// 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/ntp_snippets_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::NTPSnippetsScheduler {
public:
static NTPSnippetsLauncher* Get();
static bool Register(JNIEnv* env);
// ntp_snippets::NTPSnippetsScheduler implementation.
bool Schedule(base::TimeDelta period_wifi_charging,
base::TimeDelta period_wifi,
base::TimeDelta period_fallback) override;
bool Unschedule() override;
private:
friend struct base::DefaultLazyInstanceTraits<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_
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