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// Copyright 2015 The Chromium Authors
// 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_WEBSITE_SETTINGS_REGISTRY_H_
#define COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_WEBSITE_SETTINGS_REGISTRY_H_
#include <map>
#include <memory>
#include <string>
#include "base/lazy_instance.h"
#include "base/values.h"
#include "components/content_settings/core/browser/content_settings_utils.h"
#include "components/content_settings/core/browser/website_settings_info.h"
#include "components/content_settings/core/common/content_settings.h"
#include "components/content_settings/core/common/content_settings_types.h"
namespace content_settings {
// This class stores WebsiteSettingsInfo objects for each website setting in the
// system and provides access to them. Global instances can be fetched and
// methods called from from any thread because all of its public methods are
// const.
class WebsiteSettingsRegistry {
public:
typedef uint32_t Platforms;
// TODO(lshang): Remove this enum when content settings can be registered from
// within the component in which they are used. When this is possible then
// ifdefs can be contained within each component.
enum Platform : Platforms {
PLATFORM_WINDOWS = 1 << 0,
PLATFORM_LINUX = 1 << 1,
PLATFORM_CHROMEOS = 1 << 2,
PLATFORM_MAC = 1 << 3,
PLATFORM_ANDROID = 1 << 4,
PLATFORM_IOS = 1 << 5,
PLATFORM_FUCHSIA = 1 << 6,
// Settings only applied to win, mac, linux, chromeos, and fuchsia.
DESKTOP = PLATFORM_WINDOWS | PLATFORM_LINUX | PLATFORM_CHROMEOS |
PLATFORM_MAC | PLATFORM_FUCHSIA,
// Settings applied to all platforms, including win, mac, linux, chromeos,
// android, ios, and fuchsia.
ALL_PLATFORMS =
DESKTOP | PLATFORM_ANDROID | PLATFORM_IOS | PLATFORM_FUCHSIA,
};
using Map =
std::map<ContentSettingsType, std::unique_ptr<WebsiteSettingsInfo>>;
using const_iterator = MapValueIterator<typename Map::const_iterator,
const WebsiteSettingsInfo*>;
static WebsiteSettingsRegistry* GetInstance();
WebsiteSettingsRegistry(const WebsiteSettingsRegistry&) = delete;
WebsiteSettingsRegistry& operator=(const WebsiteSettingsRegistry&) = delete;
// Reset the instance for use inside tests.
void ResetForTest();
const WebsiteSettingsInfo* Get(ContentSettingsType type) const;
const WebsiteSettingsInfo* GetByName(const std::string& name) const;
// Register a new website setting. This maps an origin to an arbitrary
// base::Value. Returns a pointer to the registered WebsiteSettingsInfo which
// is owned by the registry.
// A nullptr will be returned if registration fails (for example if
// |platforms| doesn't match the current platform).
const WebsiteSettingsInfo* Register(
ContentSettingsType type,
const std::string& name,
base::Value initial_default_value,
WebsiteSettingsInfo::SyncStatus sync_status,
WebsiteSettingsInfo::LossyStatus lossy_status,
WebsiteSettingsInfo::ScopingType scoping_type,
Platforms platforms,
WebsiteSettingsInfo::IncognitoBehavior incognito_behavior);
const_iterator begin() const;
const_iterator end() const;
private:
friend class ContentSettingsRegistryTest;
friend class WebsiteSettingsRegistryTest;
friend struct base::LazyInstanceTraitsBase<WebsiteSettingsRegistry>;
WebsiteSettingsRegistry();
~WebsiteSettingsRegistry();
void Init();
Map website_settings_info_;
};
} // namespace content_settings
#endif // COMPONENTS_CONTENT_SETTINGS_CORE_BROWSER_WEBSITE_SETTINGS_REGISTRY_H_
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