chromium/cc/input/scroll_utils.h

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CC_INPUT_SCROLL_UTILS_H_
#define CC_INPUT_SCROLL_UTILS_H_

#include "cc/cc_export.h"

namespace gfx {
class Vector2dF;
class SizeF;
}  // namespace gfx

namespace cc {

static constexpr int kPixelsPerLineStep = …;
static constexpr float kMinFractionToStepWhenPaging = …;

// Each directional scroll for percentage-based units should scroll 1/8th of
// the scrollable area.
static constexpr float kPercentDeltaForDirectionalScroll = …;

// Class for scroll helper methods in cc and blink.
class CC_EXPORT ScrollUtils { … };

}  // namespace cc

#endif  // CC_INPUT_SCROLL_UTILS_H_