APZTestAccess.h (1298B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef mozilla_layers_APZTestAccess_h 8 #define mozilla_layers_APZTestAccess_h 9 10 #include <cstddef> // for size_t 11 #include <cstdint> // for int32_t 12 13 namespace mozilla { 14 namespace layers { 15 16 struct ScrollMetadata; 17 class WebRenderLayerScrollData; 18 class WebRenderScrollData; 19 20 // The only purpose of this class is to serve as a single type that can be 21 // the target of a "friend class" declaration in APZ classes that want to 22 // give APZ test code access to their private members. 23 // APZ test code can then access those members via this class. 24 class APZTestAccess { 25 public: 26 static void InitializeForTest(WebRenderLayerScrollData& aLayer, 27 int32_t aDescendantCount); 28 static ScrollMetadata& GetScrollMetadataMut(WebRenderLayerScrollData& aLayer, 29 WebRenderScrollData& aOwner, 30 size_t aIndex); 31 }; 32 33 } // namespace layers 34 } // namespace mozilla 35 36 #endif