ladybird/Libraries/LibHTML/CSS/StyleProperties.h
Andreas Kling 4e35bbffdd LibHTML: LayoutText should always use parent's style properties
This patch makes StyleProperties heap-allocated and ref-counted so that
a LayoutNode can be without one. The ref-counting also allows anonymous
blocks to share style with their parent block.

LayoutText never needs a StyleProperties, since text always inherits
style from its parent element. This is handled by style_properties().
2019-10-04 12:12:39 +02:00

29 lines
976 B
C++

#pragma once
#include <AK/HashMap.h>
#include <AK/NonnullRefPtr.h>
#include <LibHTML/CSS/StyleValue.h>
class Color;
class StyleProperties : public RefCounted<StyleProperties> {
public:
static NonnullRefPtr<StyleProperties> create() { return adopt(*new StyleProperties); }
template<typename Callback>
inline void for_each_property(Callback callback) const
{
for (auto& it : m_property_values)
callback(it.key, *it.value);
}
void set_property(const String& name, NonnullRefPtr<StyleValue> value);
Optional<NonnullRefPtr<StyleValue>> property(const String& name) const;
Length length_or_fallback(const StringView& property_name, const Length& fallback) const;
String string_or_fallback(const StringView& property_name, const StringView& fallback) const;
Color color_or_fallback(const StringView& property_name, Color fallback) const;
private:
HashMap<String, NonnullRefPtr<StyleValue>> m_property_values;
};