| // 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_WINDOWS_TESTING_ENGINE_MODIFIER_H_ |
| #define FLUTTER_SHELL_PLATFORM_WINDOWS_TESTING_ENGINE_MODIFIER_H_ |
| |
| #include "flutter/shell/platform/windows/flutter_windows_engine.h" |
| |
| namespace flutter { |
| |
| // A test utility class providing the ability to access and alter various |
| // private fields in an Engine instance. |
| // |
| // This simply provides a way to access the normally-private embedder proc |
| // table, so the lifetime of any changes made to the proc table is that of the |
| // engine object, not this helper. |
| class EngineModifier { |
| public: |
| explicit EngineModifier(FlutterWindowsEngine* engine) : engine_(engine) {} |
| |
| // Returns the engine's embedder API proc table, allowing for modification. |
| // |
| // Modifications are to the engine, and will last for the lifetime of the |
| // engine unless overwritten again. |
| FlutterEngineProcTable& embedder_api() { return engine_->embedder_api_; } |
| |
| // Explicitly sets the SurfaceManager being used by the FlutterWindowsEngine |
| // instance. This allows us to test fallback paths when a SurfaceManager fails |
| // to initialize for whatever reason. |
| // |
| // Modifications are to the engine, and will last for the lifetime of the |
| // engine unless overwritten again. |
| void SetSurfaceManager(AngleSurfaceManager* surface_manager) { |
| engine_->surface_manager_.reset(surface_manager); |
| } |
| |
| // Explicitly releases the SurfaceManager being used by the |
| // FlutterWindowsEngine instance. This should be used if SetSurfaceManager is |
| // used to explicitly set to a non-null value (but not a valid object) to test |
| // a successful ANGLE initialization. |
| // |
| // Modifications are to the engine, and will last for the lifetime of the |
| // engine unless overwritten again. |
| void ReleaseSurfaceManager() { engine_->surface_manager_.release(); } |
| |
| private: |
| FlutterWindowsEngine* engine_; |
| }; |
| |
| } // namespace flutter |
| |
| #endif // FLUTTER_SHELL_PLATFORM_WINDOWS_TESTING_ENGINE_MODIFIER_H_ |