StyleColor.h   [plain text]

/*
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 * Copyright (C) 2016 Apple Inc. All rights reserved.
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#pragma once

#include "CSSValueKeywords.h"
#include "Color.h"

namespace WebCore {

class StyleColor {
public:
    StyleColor()
        : m_currentColor(true) { }
    StyleColor(Color color)
        : m_color(color)
        , m_currentColor(false) { }
    static StyleColor currentColor() { return StyleColor(); }

    bool isCurrentColor() const { return m_currentColor; }
    const Color& getColor() const { ASSERT(!isCurrentColor()); return m_color; }

    const Color& resolve(const Color& currentColor) const { return m_currentColor ? currentColor : m_color; }

    static Color colorFromKeyword(CSSValueID);
    static bool isColorKeyword(CSSValueID);
    static bool isSystemColor(CSSValueID);

private:
    Color m_color;
    bool m_currentColor;
};

inline bool operator==(const StyleColor& a, const StyleColor& b)
{
    if (a.isCurrentColor() || b.isCurrentColor())
        return a.isCurrentColor() && b.isCurrentColor();
    return a.getColor() == b.getColor();
}

inline bool operator!=(const StyleColor& a, const StyleColor& b)
{
    return !(a == b);
}


} // namespace WebCore