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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_OVERRIDE_PROVIDER_H_ | |
| 6 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_OVERRIDE_PROVIDER_H_ | |
| 7 | |
| 8 #include "base/macros.h" | |
| 9 #include "base/synchronization/lock.h" | |
| 10 #include "base/threading/thread_checker.h" | |
| 11 #include "components/content_settings/core/browser/content_settings_provider.h" | |
| 12 #include "components/content_settings/core/common/content_settings_types.h" | |
| 13 | |
| 14 class ContentSettingsPattern; | |
| 15 class PrefService; | |
| 16 | |
| 17 namespace user_prefs { | |
| 18 class PrefRegistrySyncable; | |
| 19 } | |
| 20 | |
| 21 namespace content_settings { | |
| 22 | |
| 23 // OverrideProvider contains if certain content settings are enabled or | |
| 24 // globally disabled. It may only be written to using the UI thread, but may be | |
| 25 // read on any thread. | |
| 26 class OverrideProvider : public ProviderInterface { | |
| 27 public: | |
| 28 static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry); | |
| 29 | |
| 30 OverrideProvider(PrefService* prefs, bool incognito); | |
| 31 ~OverrideProvider() override; | |
| 32 | |
| 33 // ProviderInterface implementations. | |
| 34 RuleIterator* GetRuleIterator(ContentSettingsType content_type, | |
| 35 const ResourceIdentifier& resource_identifier, | |
| 36 bool incognito) const override; | |
| 37 | |
| 38 void ClearAllContentSettingsRules(ContentSettingsType content_type) override; | |
| 39 | |
| 40 bool SetWebsiteSetting(const ContentSettingsPattern& primary_pattern, | |
| 41 const ContentSettingsPattern& secondary_pattern, | |
| 42 ContentSettingsType content_type, | |
| 43 const ResourceIdentifier& resource_identifier, | |
| 44 base::Value* value) override; | |
| 45 | |
| 46 void ShutdownOnUIThread() override; | |
| 47 | |
| 48 // Sets if a given |content_type| is |enabled|. | |
| 49 void SetOverrideSetting(ContentSettingsType content_type, bool enabled); | |
| 50 | |
| 51 // Returns if |content_type| is enabled. If it is not enabled, the content | |
| 52 // setting type is considered globally disabled and acts as though it is | |
| 53 // blocked. If it is enabled, the content setting type's permission is granted | |
| 54 // by the other providers. | |
| 55 bool IsEnabled(ContentSettingsType content_type) const; | |
| 56 | |
| 57 private: | |
| 58 // Reads the override settings from the preferences service. | |
| 59 void ReadOverrideSettings(); | |
| 60 | |
| 61 // Copies of the pref data, so that we can read it on the IO thread. | |
| 62 bool allowed_settings_[CONTENT_SETTINGS_NUM_TYPES]; | |
| 63 | |
| 64 PrefService* prefs_; | |
| 65 | |
| 66 bool is_incognito_; | |
| 67 | |
| 68 // Used around accesses to the |override_content_settings_| object to | |
| 69 // guarantee thread safety. | |
| 70 mutable base::Lock lock_; | |
| 71 | |
| 72 base::ThreadChecker thread_checker_; | |
| 73 | |
| 74 DISALLOW_COPY_AND_ASSIGN(OverrideProvider); | |
| 75 }; | |
| 76 | |
| 77 } // namespace content_settings | |
| 78 | |
| 79 #endif // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_OVERRIDE_PROVIDER_H_ | |
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Chromium Code Reviews
Issue 670953006:
Componentize HostContentSettingsMap and content settings providers. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master