/usr/include/thunderbird/mozilla/layers/TouchCounter.h is in thunderbird-dev 1:52.8.0-1~deb8u1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | /* -*- Mode: C++; tab-width: 2; 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_TouchCounter_h
#define mozilla_layers_TouchCounter_h
#include "mozilla/EventForwards.h"
namespace mozilla {
class MultiTouchInput;
namespace layers {
// TouchCounter simply tracks the number of active touch points. Feed it
// your input events to update the internal state.
class TouchCounter
{
public:
TouchCounter();
void Update(const MultiTouchInput& aInput);
uint32_t GetActiveTouchCount() const;
private:
uint32_t mActiveTouchCount;
};
} // namespace layers
} // namespace mozilla
#endif /* mozilla_layers_TouchCounter_h */
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