| // 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_SHELL_PLATFORM_COMMON_JSON_MESSAGE_CODEC_H_ |
| #define FLUTTER_SHELL_PLATFORM_COMMON_JSON_MESSAGE_CODEC_H_ |
| |
| #include <rapidjson/document.h> |
| |
| #include "flutter/shell/platform/common/client_wrapper/include/flutter/message_codec.h" |
| |
| namespace flutter { |
| |
| // A message encoding/decoding mechanism for communications to/from the |
| // Flutter engine via JSON channels. |
| class JsonMessageCodec : public MessageCodec<rapidjson::Document> { |
| public: |
| // Returns the shared instance of the codec. |
| static const JsonMessageCodec& GetInstance(); |
| |
| ~JsonMessageCodec() = default; |
| |
| // Prevent copying. |
| JsonMessageCodec(JsonMessageCodec const&) = delete; |
| JsonMessageCodec& operator=(JsonMessageCodec const&) = delete; |
| |
| protected: |
| // Instances should be obtained via GetInstance. |
| JsonMessageCodec() = default; |
| |
| // |flutter::MessageCodec| |
| std::unique_ptr<rapidjson::Document> DecodeMessageInternal( |
| const uint8_t* binary_message, |
| const size_t message_size) const override; |
| |
| // |flutter::MessageCodec| |
| std::unique_ptr<std::vector<uint8_t>> EncodeMessageInternal( |
| const rapidjson::Document& message) const override; |
| }; |
| |
| } // namespace flutter |
| |
| #endif // FLUTTER_SHELL_PLATFORM_COMMON_JSON_MESSAGE_CODEC_H_ |