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
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_AMBIENT_MANAGED_SCREENSAVER_IMAGES_POLICY_HANDLER_H_
#define ASH_AMBIENT_MANAGED_SCREENSAVER_IMAGES_POLICY_HANDLER_H_
#include <memory>
#include "ash/ambient/managed/screensaver_image_downloader.h"
#include "ash/ash_export.h"
#include "base/files/file_path.h"
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "components/prefs/pref_change_registrar.h"
class PrefRegistrySimple;
class PrefService;
namespace ash {
// Observes the policy that provides image sources for the managed screensaver
// feature in order to download and cache the images.
class ASH_EXPORT ScreensaverImagesPolicyHandler {
public:
using ScreensaverImagesRepeatingCallback =
base::RepeatingCallback<void(const std::vector<base::FilePath>& images)>;
enum HandlerType { kSignin, kUser, kManagedGuest };
static std::unique_ptr<ScreensaverImagesPolicyHandler> Create(
PrefService* pref_service);
static void RegisterPrefs(PrefRegistrySimple* registry);
ScreensaverImagesPolicyHandler(PrefService* pref_service, HandlerType state);
ScreensaverImagesPolicyHandler(const ScreensaverImagesPolicyHandler&) =
delete;
ScreensaverImagesPolicyHandler& operator=(
const ScreensaverImagesPolicyHandler&) = delete;
~ScreensaverImagesPolicyHandler();
std::vector<base::FilePath> GetScreensaverImages();
void SetScreensaverImagesUpdatedCallback(
ScreensaverImagesRepeatingCallback callback);
// Used for setting images in tests.
void SetImagesForTesting(const std::vector<base::FilePath>& images);
private:
friend class ScreensaverImagesPolicyHandlerTest;
void OnAmbientModeManagedScreensaverImagesPrefChanged();
void OnDownloadedImageListUpdated(const std::vector<base::FilePath>& images);
bool IsManagedScreensaverDisabledByPolicy();
raw_ptr<PrefService> pref_service_ = nullptr;
std::unique_ptr<PrefChangeRegistrar> pref_change_registrar_;
std::unique_ptr<ScreensaverImageDownloader> image_downloader_;
ScreensaverImagesRepeatingCallback on_images_updated_callback_;
base::WeakPtrFactory<ScreensaverImagesPolicyHandler> weak_ptr_factory_{this};
};
} // namespace ash
#endif // ASH_AMBIENT_MANAGED_SCREENSAVER_IMAGES_POLICY_HANDLER_H_
|
