ladybird/Libraries/LibHTML/CSS/Length.h
Andreas Kling 00d171e4d6 LibHTML: Implement the "margin" shorthand property
This is a very bulky way of doing this, and doesn't seem sustainable to
implement every shorthand property this way, but it's a place to start.

The "margin" CSS property now expands into its four longhands as far as
my understanding of the specs.

Note that shorthand expansion happens when we *resolve* style, not when
we parse CSS. I'm not sure this is correct anymore, I think other UA's
may actually expand shorthands into the declaration directly at parse
these days. If so, we should do this at parsing as well.
2019-11-18 11:51:02 +01:00

47 lines
874 B
C++

#pragma once
#include <AK/String.h>
class Length {
public:
enum class Type {
Auto,
Absolute,
};
Length() {}
Length(int value, Type type)
: m_type(type)
, m_value(value)
{
}
~Length() {}
bool is_auto() const { return m_type == Type::Auto; }
bool is_absolute() const { return m_type == Type::Absolute; }
int value() const { return m_value; }
String to_string() const
{
if (is_auto())
return "[Length/auto]";
return String::format("%d [Length/px]", m_value);
}
int to_px() const
{
if (is_auto())
return 0;
return m_value;
}
private:
Type m_type { Type::Auto };
int m_value { 0 };
};
inline const LogStream& operator<<(const LogStream& stream, const Length& value)
{
return stream << value.to_string();
}