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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_CONTENT_SETTINGS_PREF_PROVIDER_H_
#define COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_CONTENT_SETTINGS_PREF_PROVIDER_H_
// A content settings provider that takes its settings out of the pref service.
#include <map>
#include <vector>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/prefs/pref_change_registrar.h"
#include "components/content_settings/core/browser/content_settings_observable_provider.h"
#include "components/content_settings/core/browser/content_settings_utils.h"
class PrefService;
namespace base {
class Clock;
class DictionaryValue;
}
namespace user_prefs {
class PrefRegistrySyncable;
}
namespace content_settings {
class ContentSettingsPref;
// Content settings provider that provides content settings from the user
// preference.
class PrefProvider : public ObservableProvider {
public:
static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
PrefProvider(PrefService* prefs, bool incognito);
~PrefProvider() override;
// ProviderInterface implementations.
scoped_ptr<RuleIterator> GetRuleIterator(
ContentSettingsType content_type,
const ResourceIdentifier& resource_identifier,
bool incognito) const override;
bool SetWebsiteSetting(const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern,
ContentSettingsType content_type,
const ResourceIdentifier& resource_identifier,
base::Value* value) override;
void ClearAllContentSettingsRules(ContentSettingsType content_type) override;
void ShutdownOnUIThread() override;
void ClearPrefs();
// Records the last time the given pattern has used a certain content setting.
void UpdateLastUsage(const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern,
ContentSettingsType content_type);
base::Time GetLastUsage(const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern,
ContentSettingsType content_type);
ContentSettingsPref* GetPref(ContentSettingsType type) const;
// Gains ownership of |clock|.
void SetClockForTesting(scoped_ptr<base::Clock> clock);
private:
friend class DeadlockCheckerObserver; // For testing.
void Notify(const ContentSettingsPattern& primary_pattern,
const ContentSettingsPattern& secondary_pattern,
ContentSettingsType content_type,
const std::string& resource_identifier);
// Clean up the obsolete preferences from the user's profile.
void DiscardObsoletePreferences();
// Weak; owned by the Profile and reset in ShutdownOnUIThread.
PrefService* prefs_;
// Can be set for testing.
scoped_ptr<base::Clock> clock_;
bool is_incognito_;
PrefChangeRegistrar pref_change_registrar_;
std::map<ContentSettingsType, scoped_ptr<ContentSettingsPref>>
content_settings_prefs_;
base::ThreadChecker thread_checker_;
DISALLOW_COPY_AND_ASSIGN(PrefProvider);
};
} // namespace content_settings
#endif // COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_CONTENT_SETTINGS_PREF_PROVIDER_H_
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