| 1 | // Copyright 2013 The Flutter Authors. All rights reserved. |
|---|---|
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef FLUTTER_LIB_UI_CALLBACK_CACHE_H_ |
| 6 | #define FLUTTER_LIB_UI_CALLBACK_CACHE_H_ |
| 7 | |
| 8 | #include <map> |
| 9 | #include <memory> |
| 10 | #include <mutex> |
| 11 | #include <string> |
| 12 | |
| 13 | #include "flutter/fml/macros.h" |
| 14 | #include "third_party/dart/runtime/include/dart_api.h" |
| 15 | |
| 16 | namespace flutter { |
| 17 | |
| 18 | struct DartCallbackRepresentation { |
| 19 | std::string name; |
| 20 | std::string class_name; |
| 21 | std::string library_path; |
| 22 | }; |
| 23 | |
| 24 | class DartCallbackCache { |
| 25 | public: |
| 26 | static void SetCachePath(const std::string& path); |
| 27 | static std::string GetCachePath() { return cache_path_; } |
| 28 | |
| 29 | static int64_t GetCallbackHandle(const std::string& name, |
| 30 | const std::string& class_name, |
| 31 | const std::string& library_path); |
| 32 | |
| 33 | static Dart_Handle GetCallback(int64_t handle); |
| 34 | |
| 35 | static std::unique_ptr<DartCallbackRepresentation> GetCallbackInformation( |
| 36 | int64_t handle); |
| 37 | |
| 38 | static void LoadCacheFromDisk(); |
| 39 | |
| 40 | private: |
| 41 | static Dart_Handle LookupDartClosure(const std::string& name, |
| 42 | const std::string& class_name, |
| 43 | const std::string& library_path); |
| 44 | |
| 45 | static void SaveCacheToDisk(); |
| 46 | |
| 47 | static std::mutex mutex_; |
| 48 | static std::string cache_path_; |
| 49 | |
| 50 | static std::map<int64_t, DartCallbackRepresentation> cache_; |
| 51 | |
| 52 | FML_DISALLOW_IMPLICIT_CONSTRUCTORS(DartCallbackCache); |
| 53 | }; |
| 54 | |
| 55 | } // namespace flutter |
| 56 | |
| 57 | #endif // FLUTTER_LIB_UI_CALLBACK_CACHE_H_ |
| 58 |