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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_UI_ZOOM_CHROME_ZOOM_LEVEL_PREFS_H_ | 5 #ifndef CHROME_BROWSER_UI_ZOOM_CHROME_ZOOM_LEVEL_PREFS_H_ |
6 #define CHROME_BROWSER_UI_ZOOM_CHROME_ZOOM_LEVEL_PREFS_H_ | 6 #define CHROME_BROWSER_UI_ZOOM_CHROME_ZOOM_LEVEL_PREFS_H_ |
7 | 7 |
8 #include "base/callback.h" | 8 #include "base/callback.h" |
9 #include "base/files/file_path.h" | 9 #include "base/files/file_path.h" |
10 #include "base/macros.h" | 10 #include "base/macros.h" |
11 #include "base/memory/ref_counted.h" | 11 #include "base/memory/ref_counted.h" |
12 #include "base/observer_list.h" | 12 #include "base/observer_list.h" |
13 #include "base/prefs/json_pref_store.h" | 13 #include "base/prefs/json_pref_store.h" |
14 #include "base/prefs/pref_change_registrar.h" | 14 #include "base/prefs/pref_change_registrar.h" |
15 #include "base/prefs/pref_service.h" | 15 #include "base/prefs/pref_service.h" |
16 #include "base/prefs/pref_store.h" | 16 #include "base/prefs/pref_store.h" |
17 #include "content/public/browser/host_zoom_map.h" | 17 #include "content/public/browser/host_zoom_map.h" |
| 18 #include "content/public/browser/zoom_level_delegate.h" |
18 | 19 |
19 namespace base { | 20 namespace base { |
20 class DictionaryValue; | 21 class DictionaryValue; |
21 } | 22 } |
22 | 23 |
23 namespace chrome { | 24 namespace chrome { |
24 | 25 |
25 // A class to manage per-partition default and per-host zoom levels in Chrome's | 26 // A class to manage per-partition default and per-host zoom levels in Chrome's |
26 // preference system. It implements an interface between the content/ zoom | 27 // preference system. It implements an interface between the content/ zoom |
27 // levels in HostZoomMap and Chrome's preference system. All changes | 28 // levels in HostZoomMap and Chrome's preference system. All changes |
28 // to the per-partition default zoom levels from chrome/ flow through this | 29 // to the per-partition default zoom levels from chrome/ flow through this |
29 // class. Any changes to per-host levels are updated when HostZoomMap calls | 30 // class. Any changes to per-host levels are updated when HostZoomMap calls |
30 // OnZoomLevelChanged. | 31 // OnZoomLevelChanged. |
31 class ChromeZoomLevelPrefs { | 32 class ChromeZoomLevelPrefs : public content::ZoomLevelDelegate { |
32 public: | 33 public: |
33 typedef base::CallbackList<void(void)>::Subscription | 34 typedef base::CallbackList<void(void)>::Subscription |
34 DefaultZoomLevelSubscription; | 35 DefaultZoomLevelSubscription; |
35 | 36 |
36 // Initialize the pref_service and the profile_path via the constructor, | 37 // Initialize the pref_service and the partition_key via the constructor, |
37 // as these concepts won't be available in the content base class | 38 // as these concepts won't be available in the content base class |
38 // (to be added later) which will define the InitPrefsAndCopyToHostZoomMap | 39 // ZoomLevelDelegate, which will define the InitHostZoomMap interface. |
39 // interface. |pref_service_| must outlive this class. | 40 // |pref_service_| must outlive this class. |
40 ChromeZoomLevelPrefs(PrefService* pref_service, | 41 ChromeZoomLevelPrefs(PrefService* pref_service, |
41 const base::FilePath& profile_path); | 42 const base::FilePath& profile_path, |
| 43 const base::FilePath& partition_path); |
42 virtual ~ChromeZoomLevelPrefs(); | 44 virtual ~ChromeZoomLevelPrefs(); |
43 | 45 |
44 static std::string GetHashForTesting(const base::FilePath& relative_path); | 46 static std::string GetHashForTesting(const base::FilePath& relative_path); |
45 | 47 |
46 virtual void InitPrefsAndCopyToHostZoomMap( | |
47 const base::FilePath& partition_path, | |
48 content::HostZoomMap* host_zoom_map); | |
49 | |
50 void SetDefaultZoomLevelPref(double level); | 48 void SetDefaultZoomLevelPref(double level); |
51 double GetDefaultZoomLevelPref() const; | 49 double GetDefaultZoomLevelPref() const; |
52 scoped_ptr<DefaultZoomLevelSubscription> RegisterDefaultZoomLevelCallback( | 50 scoped_ptr<DefaultZoomLevelSubscription> RegisterDefaultZoomLevelCallback( |
53 const base::Closure& callback); | 51 const base::Closure& callback); |
54 | 52 |
55 void ExtractPerHostZoomLevels( | 53 void ExtractPerHostZoomLevels( |
56 const base::DictionaryValue* host_zoom_dictionary, | 54 const base::DictionaryValue* host_zoom_dictionary, |
57 bool sanitize_partition_host_zoom_levels); | 55 bool sanitize_partition_host_zoom_levels); |
58 | 56 |
| 57 // content::ZoomLevelDelegate |
| 58 void InitHostZoomMap(content::HostZoomMap* host_zoom_map) override; |
| 59 |
59 private: | 60 private: |
60 // This is a callback function that receives notifications from HostZoomMap | 61 // This is a callback function that receives notifications from HostZoomMap |
61 // when per-host zoom levels change. It is used to update the per-host | 62 // when per-host zoom levels change. It is used to update the per-host |
62 // zoom levels (if any) managed by this class (for its associated partition). | 63 // zoom levels (if any) managed by this class (for its associated partition). |
63 void OnZoomLevelChanged(const content::HostZoomMap::ZoomLevelChange& change); | 64 void OnZoomLevelChanged(const content::HostZoomMap::ZoomLevelChange& change); |
64 | 65 |
65 PrefService* pref_service_; | 66 PrefService* pref_service_; |
66 const base::FilePath profile_path_; | |
67 content::HostZoomMap* host_zoom_map_; | 67 content::HostZoomMap* host_zoom_map_; |
68 scoped_ptr<content::HostZoomMap::Subscription> zoom_subscription_; | 68 scoped_ptr<content::HostZoomMap::Subscription> zoom_subscription_; |
69 std::string partition_key_; | 69 std::string partition_key_; |
70 base::CallbackList<void(void)> default_zoom_changed_callbacks_; | 70 base::CallbackList<void(void)> default_zoom_changed_callbacks_; |
71 | 71 |
72 DISALLOW_COPY_AND_ASSIGN(ChromeZoomLevelPrefs); | 72 DISALLOW_COPY_AND_ASSIGN(ChromeZoomLevelPrefs); |
73 }; | 73 }; |
74 | 74 |
75 } // namespace chrome | 75 } // namespace chrome |
76 | 76 |
77 #endif // CHROME_BROWSER_UI_ZOOM_CHROME_ZOOM_LEVEL_PREFS_H_ | 77 #endif // CHROME_BROWSER_UI_ZOOM_CHROME_ZOOM_LEVEL_PREFS_H_ |
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