| // Copyright (C) 2014 Google Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef I18N_ADDRESSINPUT_REGION_DATA_BUILDER_H_ |
| #define I18N_ADDRESSINPUT_REGION_DATA_BUILDER_H_ |
| |
| #include <map> |
| #include <string> |
| |
| namespace i18n { |
| namespace addressinput { |
| |
| class PreloadSupplier; |
| class RegionData; |
| |
| class RegionDataBuilder { |
| public: |
| RegionDataBuilder(const RegionDataBuilder&) = delete; |
| RegionDataBuilder& operator=(const RegionDataBuilder&) = delete; |
| |
| // Does not take ownership of |supplier|, which should not be nullptr. |
| explicit RegionDataBuilder(PreloadSupplier* supplier); |
| ~RegionDataBuilder(); |
| |
| // Returns a tree of administrative subdivisions for the |region_code|. |
| // Examples: |
| // US with en-US UI language. |
| // |______________________ |
| // | | | |
| // v v v |
| // AL:Alabama AK:Alaska AS:American Samoa ... |
| // |
| // KR with ko-Latn UI language. |
| // |______________________________________ |
| // | | | |
| // v v v |
| // 강원도:Gangwon 경기도:Gyeonggi 경상남도:Gyeongnam ... |
| // |
| // KR with ko-KR UI language. |
| // |_______________________________ |
| // | | | |
| // v v v |
| // 강원도:강원 경기도:경기 경상남도:경남 ... |
| // |
| // The BCP 47 |ui_language_tag| is used to choose the best supported language |
| // tag for this region (assigned to |best_region_tree_language_tag|). For |
| // example, Canada has both English and French names for its administrative |
| // subdivisions. If the UI language is French, then the French names are used. |
| // The |best_region_tree_language_tag| value may be an empty string. |
| // |
| // Should be called only if supplier->IsLoaded(region_code) returns true. The |
| // |best_region_tree_language_tag| parameter should not be nullptr. |
| const RegionData& Build(const std::string& region_code, |
| const std::string& ui_language_tag, |
| std::string* best_region_tree_language_tag); |
| |
| private: |
| typedef std::map<std::string, const RegionData*> LanguageRegionMap; |
| typedef std::map<std::string, LanguageRegionMap*> RegionCodeDataMap; |
| |
| PreloadSupplier* const supplier_; // Not owned. |
| RegionCodeDataMap cache_; |
| }; |
| |
| } // namespace addressinput |
| } // namespace i18n |
| |
| #endif // I18N_ADDRESSINPUT_REGION_DATA_BUILDER_H_ |