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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_layers_QueuedInput_h
#define mozilla_layers_QueuedInput_h
#include "mozilla/RefPtr.h"
#include "mozilla/UniquePtr.h"
namespace mozilla {
class InputData;
class MultiTouchInput;
class ScrollWheelInput;
class MouseInput;
class PanGestureInput;
namespace layers {
class CancelableBlockState;
class TouchBlockState;
class WheelBlockState;
class DragBlockState;
class PanGestureBlockState;
/**
* This lightweight class holds a pointer to an input event that has not yet
* been completely processed, along with the input block that the input event
* is associated with.
*/
class QueuedInput
{
public:
QueuedInput(const MultiTouchInput& aInput, TouchBlockState& aBlock);
QueuedInput(const ScrollWheelInput& aInput, WheelBlockState& aBlock);
QueuedInput(const MouseInput& aInput, DragBlockState& aBlock);
QueuedInput(const PanGestureInput& aInput, PanGestureBlockState& aBlock);
InputData* Input();
CancelableBlockState* Block();
private:
// A copy of the input event that is provided to the constructor. This must
// be non-null, and is owned by this QueuedInput instance (hence the
// UniquePtr).
UniquePtr<InputData> mInput;
// A pointer to the block that the input event is associated with. This must
// be non-null.
RefPtr<CancelableBlockState> mBlock;
};
} // namespace layers
} // namespace mozilla
#endif // mozilla_layers_QueuedInput_h
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