chromium/ui/events/ozone/evdev/touch_filter/palm_detection_filter.h

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_EVENTS_OZONE_EVDEV_TOUCH_FILTER_PALM_DETECTION_FILTER_H_
#define UI_EVENTS_OZONE_EVDEV_TOUCH_FILTER_PALM_DETECTION_FILTER_H_

#include <bitset>
#include <vector>

#include "base/memory/raw_ptr.h"
#include "base/time/time.h"
#include "ui/events/ozone/evdev/touch_evdev_types.h"
#include "ui/events/ozone/evdev/touch_filter/shared_palm_detection_filter_state.h"

namespace ui {

// An abstract palm detection filter. It has two functions:
// 1. To decide which touches to "hold"
// 2. To decide which touches to suppress / "cancel".
// Interface is similar to that of TouchFilter but enshrines the "hold" as a
// first class citizen.
class COMPONENT_EXPORT(EVDEV) PalmDetectionFilter { … };

}  // namespace ui

#endif  // UI_EVENTS_OZONE_EVDEV_TOUCH_FILTER_PALM_DETECTION_FILTER_H_