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/*
* Copyright (C) 2013 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 "CSSPropertyNames.h"
#include <optional>
#include <wtf/Assertions.h>
namespace WebCore {
class FloatSize;
class RenderStyle;
class RenderView;
class CSSToLengthConversionData {
public:
CSSToLengthConversionData(const RenderStyle* style, const RenderStyle* rootStyle, const RenderStyle* parentStyle, const RenderView* renderView, float zoom, std::optional<CSSPropertyID> propertyToCompute = std::nullopt, RenderStyle* viewportDependencyDetectionStyle = nullptr)
: m_style(style)
, m_rootStyle(rootStyle)
, m_parentStyle(parentStyle)
, m_viewportDependencyDetectionStyle(viewportDependencyDetectionStyle ? viewportDependencyDetectionStyle : const_cast<RenderStyle*>(style))
, m_renderView(renderView)
, m_zoom(zoom)
, m_propertyToCompute(propertyToCompute)
{
ASSERT(zoom > 0);
}
CSSToLengthConversionData(const RenderStyle* style, const RenderStyle* rootStyle, const RenderStyle* parentStyle, const RenderView* renderView, std::optional<CSSPropertyID> propertyToCompute = std::nullopt)
: m_style(style)
, m_rootStyle(rootStyle)
, m_parentStyle(parentStyle)
, m_viewportDependencyDetectionStyle(const_cast<RenderStyle*>(style))
, m_renderView(renderView)
, m_propertyToCompute(propertyToCompute)
{
}
CSSToLengthConversionData() = default;
const RenderStyle* style() const { return m_style; }
const RenderStyle* rootStyle() const { return m_rootStyle; }
const RenderStyle* parentStyle() const { return m_parentStyle; }
float zoom() const;
bool computingFontSize() const { return m_propertyToCompute == CSSPropertyFontSize; }
bool computingLineHeight() const { return m_propertyToCompute == CSSPropertyLineHeight; }
CSSPropertyID propertyToCompute() const { return m_propertyToCompute.value_or(CSSPropertyInvalid); }
const RenderView* renderView() const { return m_renderView; }
FloatSize defaultViewportFactor() const;
FloatSize smallViewportFactor() const;
FloatSize largeViewportFactor() const;
FloatSize dynamicViewportFactor() const;
CSSToLengthConversionData copyWithAdjustedZoom(float newZoom) const
{
return CSSToLengthConversionData(m_style, m_rootStyle, m_parentStyle, m_renderView, newZoom, m_propertyToCompute);
}
CSSToLengthConversionData copyWithAdjustedZoomAndPropertyToCompute(float zoom, std::optional<CSSPropertyID> propertyToCompute) const
{
return CSSToLengthConversionData(m_style, m_rootStyle, m_parentStyle, m_renderView, zoom, propertyToCompute);
}
private:
const RenderStyle* m_style { nullptr };
const RenderStyle* m_rootStyle { nullptr };
const RenderStyle* m_parentStyle { nullptr };
RenderStyle* m_viewportDependencyDetectionStyle { nullptr };
const RenderView* m_renderView { nullptr };
std::optional<float> m_zoom;
std::optional<CSSPropertyID> m_propertyToCompute;
};
} // namespace WebCore
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