blob: c374409c0b0b96b47d566caa38536b358e464e85 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
// 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 COMPONENTS_NTP_SNIPPETS_NTP_SNIPPETS_SCHEDULER_H_
#define COMPONENTS_NTP_SNIPPETS_NTP_SNIPPETS_SCHEDULER_H_
#include "base/macros.h"
#include "base/time/time.h"
namespace ntp_snippets {
// Interface to schedule the periodic fetching of snippets.
class NTPSnippetsScheduler {
public:
// Schedule periodic fetching of snippets, with different period depending on
// network and charging state. The concrete implementation should call
// NTPSnippetsService::FetchSnippets once per period.
virtual bool Schedule(base::TimeDelta period_wifi_charging,
base::TimeDelta period_wifi,
base::TimeDelta period_fallback) = 0;
// Cancel the scheduled fetching task, if any.
virtual bool Unschedule() = 0;
protected:
NTPSnippetsScheduler() = default;
private:
DISALLOW_COPY_AND_ASSIGN(NTPSnippetsScheduler);
};
} // namespace ntp_snippets
#endif // COMPONENTS_NTP_SNIPPETS_NTP_SNIPPETS_SCHEDULER_H_
|
