| // Copyright 2013 The Flutter 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 FLUTTER_ASSETS_ZIP_ASSET_STORE_H_ |
| #define FLUTTER_ASSETS_ZIP_ASSET_STORE_H_ |
| |
| #include <map> |
| |
| #include "flutter/assets/asset_resolver.h" |
| #include "flutter/fml/macros.h" |
| #include "third_party/zlib/contrib/minizip/unzip.h" |
| |
| namespace flutter { |
| |
| struct UniqueUnzipperTraits { |
| static inline void* InvalidValue() { return nullptr; } |
| static inline bool IsValid(void* value) { return value != InvalidValue(); } |
| static void Free(void* file); |
| }; |
| |
| using UniqueUnzipper = fml::UniqueObject<void*, UniqueUnzipperTraits>; |
| |
| class ZipAssetStore final : public AssetResolver { |
| public: |
| ZipAssetStore(std::string file_path, std::string directory); |
| |
| ~ZipAssetStore() override; |
| |
| private: |
| struct CacheEntry { |
| unz_file_pos file_pos; |
| size_t uncompressed_size; |
| CacheEntry(unz_file_pos p_file_pos, size_t p_uncompressed_size) |
| : file_pos(p_file_pos), uncompressed_size(p_uncompressed_size) {} |
| }; |
| |
| const std::string file_path_; |
| const std::string directory_; |
| |
| mutable std::map<std::string, CacheEntry> stat_cache_; |
| |
| // |AssetResolver| |
| bool IsValid() const override; |
| |
| // |AssetResolver| |
| std::unique_ptr<fml::Mapping> GetAsMapping( |
| const std::string& asset_name) const override; |
| |
| void BuildStatCache(); |
| |
| UniqueUnzipper CreateUnzipper() const; |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(ZipAssetStore); |
| }; |
| |
| } // namespace flutter |
| |
| #endif // FLUTTER_ASSETS_ZIP_ASSET_STORE_H_ |