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// Copyright 2014 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_SEARCH_ENGINES_TEMPLATE_URL_PREPOPULATE_DATA_H_
#define COMPONENTS_SEARCH_ENGINES_TEMPLATE_URL_PREPOPULATE_DATA_H_
#include <stddef.h>
#include <memory>
#include <string>
#include <vector>
#include "base/containers/span.h"
#include "build/build_config.h"
class PrefService;
struct TemplateURLData;
namespace user_prefs {
class PrefRegistrySyncable;
}
namespace TemplateURLPrepopulateData {
struct PrepopulatedEngine;
extern const int kMaxPrepopulatedEngineID;
// The maximum number of prepopulated search engines that can be returned in
// any of the EEA countries by `GetPrepopulatedEngines()`.
//
// Note: If this is increased, please also increase the declared variant count
// for the `Search.ChoiceScreenShowedEngineAt.Index{Index}` histogram.
// TODO(crbug.com/408932087): Investigate moving it to the file that actually
// populates these, `//c/regional_capabilities/r*c*_util.cc`.
inline constexpr size_t kMaxEeaPrepopulatedEngines = 8;
// The maximum number of prepopulated search engines that can be returned in
// in the rest of the world by `GetPrepopulatedEngines()`.
// TODO(crbug.com/408932087): Investigate deduping it with the constant
// `kTopSearchEnginesThreshold` in `//c/regional_capabilities/r*c*_util.cc`.
inline constexpr size_t kMaxRowPrepopulatedEngines = 5;
void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
// Returns the current version of the prepopulate data, so callers can know when
// they need to re-merge. If the prepopulate data comes from the preferences
// file then it returns the version specified there.
int GetDataVersion(PrefService* prefs);
// Resolves the prepopulated Template URLs to use, resolving priority between
// regional data and profile-specific data.
std::vector<std::unique_ptr<TemplateURLData>> GetPrepopulatedEngines(
PrefService& prefs,
std::vector<const TemplateURLPrepopulateData::PrepopulatedEngine*>
regional_prepopulated_engines);
// Returns the prepopulated search engine with the given `prepopulated_id`
// or `nullptr` if it's not known there.
// See `GetPrepopulatedEngines()` for more about how we get prepopulated
// template URLs.
std::unique_ptr<TemplateURLData> GetPrepopulatedEngine(
PrefService& prefs,
std::vector<const TemplateURLPrepopulateData::PrepopulatedEngine*>
regional_prepopulated_engines,
int prepopulated_id);
// Returns the prepopulated search engine with the given `prepopulated_id`
// from the full list of known prepopulated search engines, or `nullptr` if
// it's not known there.
// The region-specific list is used to ensure we prioritise returning a search
// engine relevant for the given country, for cases where the `prepopulated_id`
// could be associated with multiple country-specific variants.
std::unique_ptr<TemplateURLData> GetPrepopulatedEngineFromFullList(
PrefService& prefs,
std::vector<const TemplateURLPrepopulateData::PrepopulatedEngine*>
regional_prepopulated_engines,
int prepopulated_id);
#if BUILDFLAG(IS_ANDROID)
// Returns the prepopulated URLs associated with `country_code`.
// `country_code` is a two-character uppercase ISO 3166-1 country code.
// `prefs` is the main profile's preferences.
std::vector<std::unique_ptr<TemplateURLData>> GetLocalPrepopulatedEngines(
const std::string& country_code,
PrefService& prefs);
#endif
// Removes prepopulated engines and their version stored in user prefs.
void ClearPrepopulatedEnginesInPrefs(PrefService* prefs);
// Returns the fallback default search provider, currently hardcoded to be
// Google, or whichever one is the first of the list if Google is not in the
// list of prepopulated search engines.
// Search provider overrides are read from `prefs`.
// The region-specific list is used to ensure we prioritise returning a search
// engine relevant for the given country, for cases where the `prepopulated_id`
// could be associated with multiple country-specific variants.
// May return `nullptr` if for some reason there are no prepopulated search
// engines available.
std::unique_ptr<TemplateURLData> GetPrepopulatedFallbackSearch(
PrefService& prefs,
std::vector<const TemplateURLPrepopulateData::PrepopulatedEngine*>
regional_prepopulated_engines);
// Returns all prepopulated engines for all locales.
const base::span<const PrepopulatedEngine* const> GetAllPrepopulatedEngines();
} // namespace TemplateURLPrepopulateData
#endif // COMPONENTS_SEARCH_ENGINES_TEMPLATE_URL_PREPOPULATE_DATA_H_
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