QueuedInput.h (1964B)
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_QueuedInput_h 8 #define mozilla_layers_QueuedInput_h 9 10 #include "mozilla/RefPtr.h" 11 #include "mozilla/UniquePtr.h" 12 13 namespace mozilla { 14 15 class InputData; 16 class MultiTouchInput; 17 class ScrollWheelInput; 18 class MouseInput; 19 class PanGestureInput; 20 class PinchGestureInput; 21 class KeyboardInput; 22 23 namespace layers { 24 25 class InputBlockState; 26 class TouchBlockState; 27 class WheelBlockState; 28 class DragBlockState; 29 class PanGestureBlockState; 30 class PinchGestureBlockState; 31 class KeyboardBlockState; 32 33 /** 34 * This lightweight class holds a pointer to an input event that has not yet 35 * been completely processed, along with the input block that the input event 36 * is associated with. 37 */ 38 class QueuedInput { 39 public: 40 QueuedInput(const MultiTouchInput& aInput, TouchBlockState& aBlock); 41 QueuedInput(const ScrollWheelInput& aInput, WheelBlockState& aBlock); 42 QueuedInput(const MouseInput& aInput, DragBlockState& aBlock); 43 QueuedInput(const PanGestureInput& aInput, PanGestureBlockState& aBlock); 44 QueuedInput(const PinchGestureInput& aInput, PinchGestureBlockState& aBlock); 45 QueuedInput(const KeyboardInput& aInput, KeyboardBlockState& aBlock); 46 47 InputData* Input(); 48 InputBlockState* Block(); 49 50 private: 51 // A copy of the input event that is provided to the constructor. This must 52 // be non-null, and is owned by this QueuedInput instance (hence the 53 // UniquePtr). 54 UniquePtr<InputData> mInput; 55 // A pointer to the block that the input event is associated with. This must 56 // be non-null. 57 RefPtr<InputBlockState> mBlock; 58 }; 59 60 } // namespace layers 61 } // namespace mozilla 62 63 #endif // mozilla_layers_QueuedInput_h