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1 // Copyright (c) 2011 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 // Maps [requesting_origin, embedder] to content settings. Written on the UI | |
6 // thread and read on any thread. One instance per profile. This is based on | |
7 // HostContentSettingsMap but differs significantly in two aspects: | |
8 // - It maps [requesting_origin.GetOrigin(), embedder.GetOrigin()] => setting | |
9 // rather than host => setting. | |
10 // - It manages only Geolocation. | |
11 | |
12 #ifndef CHROME_BROWSER_GEOLOCATION_GEOLOCATION_CONTENT_SETTINGS_MAP_H_ | |
13 #define CHROME_BROWSER_GEOLOCATION_GEOLOCATION_CONTENT_SETTINGS_MAP_H_ | |
14 #pragma once | |
15 | |
16 #include <map> | |
17 | |
18 #include "base/basictypes.h" | |
19 #include "base/memory/ref_counted.h" | |
20 #include "chrome/browser/prefs/pref_change_registrar.h" | |
21 #include "chrome/common/content_settings.h" | |
22 #include "content/common/notification_observer.h" | |
23 #include "content/common/notification_registrar.h" | |
24 #include "googleurl/src/gurl.h" | |
25 | |
26 class ContentSettingsDetails; | |
27 class PrefService; | |
28 class Profile; | |
29 | |
30 namespace base { | |
31 class DictionaryValue; | |
32 } | |
33 | |
34 class GeolocationContentSettingsMap | |
35 : public base::RefCountedThreadSafe<GeolocationContentSettingsMap>, | |
36 public NotificationObserver { | |
37 public: | |
38 typedef std::map<GURL, ContentSetting> OneOriginSettings; | |
39 typedef std::map<GURL, OneOriginSettings> AllOriginsSettings; | |
40 | |
41 explicit GeolocationContentSettingsMap(Profile* profile); | |
42 | |
43 virtual ~GeolocationContentSettingsMap(); | |
44 | |
45 static void RegisterUserPrefs(PrefService* prefs); | |
46 | |
47 // Returns a single ContentSetting which applies to the given |requesting_url| | |
48 // when embedded in a top-level page from |embedding_url|. To determine the | |
49 // setting for a top-level page, as opposed to a frame embedded in a page, | |
50 // pass the page's URL for both arguments. | |
51 // | |
52 // This should only be called on the UI thread. | |
53 // Both arguments should be valid GURLs. | |
54 ContentSetting GetContentSetting(const GURL& requesting_url, | |
55 const GURL& embedding_url) const; | |
56 | |
57 // Returns the settings for all origins with any non-default settings. | |
58 // | |
59 // This should only be called on the UI thread. | |
60 AllOriginsSettings GetAllOriginsSettings() const; | |
61 | |
62 // Sets the content setting for a particular (requesting origin, embedding | |
63 // origin) pair. If the embedding origin is the same as the requesting | |
64 // origin, this represents the setting used when the requesting origin is | |
65 // itself the top-level page. If |embedder| is the empty GURL, |setting| | |
66 // becomes the default setting for the requesting origin when embedded on any | |
67 // page that does not have an explicit setting. Passing | |
68 // CONTENT_SETTING_DEFAULT for |setting| effectively removes that setting and | |
69 // allows future requests to return the all-embedders or global defaults (as | |
70 // applicable). | |
71 // | |
72 // This should only be called on the UI thread. |requesting_url| should be | |
73 // a valid GURL, and |embedding_url| should be valid or empty. | |
74 void SetContentSetting(const GURL& requesting_url, | |
75 const GURL& embedding_url, | |
76 ContentSetting setting); | |
77 | |
78 // Resets all settings. | |
79 // | |
80 // This should only be called on the UI thread. | |
81 void ResetToDefault(); | |
82 | |
83 // NotificationObserver implementation. | |
84 virtual void Observe(int type, | |
85 const NotificationSource& source, | |
86 const NotificationDetails& details); | |
87 | |
88 private: | |
89 friend class base::RefCountedThreadSafe<GeolocationContentSettingsMap>; | |
90 | |
91 // Sends a CONTENT_SETTINGS_CHANGED notification. | |
92 void NotifyObservers(const ContentSettingsDetails& details); | |
93 | |
94 void UnregisterObservers(); | |
95 | |
96 // Sets the fields of |one_origin_settings| based on the values in | |
97 // |dictionary|. | |
98 static void GetOneOriginSettingsFromDictionary( | |
99 const base::DictionaryValue* dictionary, | |
100 OneOriginSettings* one_origin_settings); | |
101 | |
102 // The profile we're associated with. | |
103 Profile* profile_; | |
104 | |
105 // Registrar to register for PREF_CHANGED notifications. | |
106 PrefChangeRegistrar prefs_registrar_; | |
107 NotificationRegistrar notification_registrar_; | |
108 | |
109 DISALLOW_COPY_AND_ASSIGN(GeolocationContentSettingsMap); | |
110 }; | |
111 | |
112 #endif // CHROME_BROWSER_GEOLOCATION_GEOLOCATION_CONTENT_SETTINGS_MAP_H_ | |
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