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/*
* Copyright (C) 2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "ScrollOptions.h"
#include <cmath>
namespace WebCore {
struct ScrollToOptions : ScrollOptions {
std::optional<double> left;
std::optional<double> top;
ScrollToOptions() = default;
ScrollToOptions(double x, double y)
: left(x)
, top(y)
{ }
};
inline double normalizeNonFiniteValueOrFallBackTo(std::optional<double> value, double fallbackValue)
{
// Normalize non-finite values (https://drafts.csswg.org/cssom-view/#normalize-non-finite-values).
return value ? (std::isfinite(*value) ? *value : 0) : fallbackValue;
}
// FIXME(https://webkit.org/b/88339): Consider using FloatPoint or DoublePoint for fallback and return values.
inline ScrollToOptions normalizeNonFiniteCoordinatesOrFallBackTo(const ScrollToOptions& value, double x, double y)
{
ScrollToOptions options = value;
options.left = normalizeNonFiniteValueOrFallBackTo(value.left, x);
options.top = normalizeNonFiniteValueOrFallBackTo(value.top, y);
return options;
}
}
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