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/*
* Copyright (C) 2024 Samuel Weinig <sam@webkit.org>
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* 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.
*/
#include "config.h"
#include "StyleStepsEasingFunction.h"
#include "CSSPrimitiveNumericTypes+ComputedStyleDependencies.h"
#include "StylePrimitiveNumericTypes+Conversions.h"
#include "TimingFunction.h"
namespace WebCore {
namespace Style {
CSS::StepsEasingFunction toCSSStepsEasingFunction(const StepsTimingFunction& function, const RenderStyle&)
{
auto position = function.stepPosition();
if (!position)
return { { CSS::StepsEasingParameters::JumpEnd { function.numberOfSteps() } } };
switch (*position) {
case StepsTimingFunction::StepPosition::JumpStart:
return { { CSS::StepsEasingParameters::JumpStart { function.numberOfSteps() } } };
case StepsTimingFunction::StepPosition::JumpEnd:
return { { CSS::StepsEasingParameters::JumpEnd { function.numberOfSteps() } } };
case StepsTimingFunction::StepPosition::JumpNone:
return { { CSS::StepsEasingParameters::JumpNone { function.numberOfSteps() } } };
case StepsTimingFunction::StepPosition::JumpBoth:
return { { CSS::StepsEasingParameters::JumpBoth { function.numberOfSteps() } } };
case StepsTimingFunction::StepPosition::Start:
return { { CSS::StepsEasingParameters::Start { function.numberOfSteps() } } };
case StepsTimingFunction::StepPosition::End:
return { { CSS::StepsEasingParameters::End { function.numberOfSteps() } } };
}
RELEASE_ASSERT_NOT_REACHED();
}
static StepsTimingFunction::StepPosition toStepPosition(CSS::Keyword::JumpStart)
{
return StepsTimingFunction::StepPosition::JumpStart;
}
static StepsTimingFunction::StepPosition toStepPosition(CSS::Keyword::JumpEnd)
{
return StepsTimingFunction::StepPosition::JumpEnd;
}
static StepsTimingFunction::StepPosition toStepPosition(CSS::Keyword::JumpBoth)
{
return StepsTimingFunction::StepPosition::JumpBoth;
}
static StepsTimingFunction::StepPosition toStepPosition(CSS::Keyword::Start)
{
return StepsTimingFunction::StepPosition::Start;
}
static StepsTimingFunction::StepPosition toStepPosition(CSS::Keyword::End)
{
return StepsTimingFunction::StepPosition::End;
}
static StepsTimingFunction::StepPosition toStepPosition(CSS::Keyword::JumpNone)
{
return StepsTimingFunction::StepPosition::JumpNone;
}
Ref<TimingFunction> createTimingFunction(const CSS::StepsEasingFunction& function, const CSSToLengthConversionData& conversionData)
{
return WTF::switchOn(function->value,
[&](const auto& value) -> Ref<TimingFunction> {
return StepsTimingFunction::create(toStyle(value.steps, conversionData).value, toStepPosition(value.keyword));
}
);
}
Ref<TimingFunction> createTimingFunctionDeprecated(const CSS::StepsEasingFunction& function)
{
if (!CSS::collectComputedStyleDependencies(function).canResolveDependenciesWithConversionData({ }))
return StepsTimingFunction::create();
return WTF::switchOn(function->value,
[&](const auto& value) -> Ref<TimingFunction> {
return StepsTimingFunction::create(toStyleNoConversionDataRequired(value.steps).value, toStepPosition(value.keyword));
}
);
}
} // namespace Style
} // namespace WebCore
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