1// Copyright (c) 2013 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_POWER_SAVE_BLOCKER_IMPL_H_
6#define CONTENT_BROWSER_POWER_SAVE_BLOCKER_IMPL_H_
7
8#include "base/memory/ref_counted.h"
9#include "content/public/browser/power_save_blocker.h"
10#include "ui/gfx/native_widget_types.h"
11
12namespace content {
13
14class PowerSaveBlockerImpl : public PowerSaveBlocker {
15 public:
16  PowerSaveBlockerImpl(PowerSaveBlockerType type, const std::string& reason);
17  virtual ~PowerSaveBlockerImpl();
18
19#if defined(OS_ANDROID)
20  // In Android platform, the kPowerSaveBlockPreventDisplaySleep type of
21  // PowerSaveBlocker should associated with the ViewAndroid,
22  // so the blocker could be removed by platform if the view isn't visble
23  void InitDisplaySleepBlocker(gfx::NativeView view_android);
24#endif
25
26 private:
27  class Delegate;
28
29  // Implementations of this class may need a second object with different
30  // lifetime than the RAII container, or additional storage. This member is
31  // here for that purpose. If not used, just define the class as an empty
32  // RefCounted (or RefCountedThreadSafe) like so to make it compile:
33  // class PowerSaveBlocker::Delegate
34  //     : public base::RefCounted<PowerSaveBlocker::Delegate> {
35  //  private:
36  //   friend class base::RefCounted<Delegate>;
37  //   ~Delegate() {}
38  // };
39  scoped_refptr<Delegate> delegate_;
40
41  DISALLOW_COPY_AND_ASSIGN(PowerSaveBlockerImpl);
42};
43
44}  // namespace content
45
46#endif  // CONTENT_BROWSER_POWER_SAVE_BLOCKER_IMPL_H_
47