ladybird/Userland/Libraries/LibWeb/CSS/Flex.h

67 lines
1.3 KiB
C++

/*
* Copyright (c) 2023, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Optional.h>
#include <AK/String.h>
#include <LibWeb/Forward.h>
namespace Web::CSS {
// https://drafts.csswg.org/css-grid-2/#typedef-flex
class Flex {
public:
enum class Type {
Fr,
};
static Optional<Type> unit_from_name(StringView);
Flex(double value, Type type);
static Flex make_fr(double);
Flex percentage_of(Percentage const&) const;
String to_string() const;
double to_fr() const;
Type type() const { return m_type; }
double raw_value() const { return m_value; }
bool operator==(Flex const& other) const
{
return m_type == other.m_type && m_value == other.m_value;
}
int operator<=>(Flex const& other) const
{
auto this_fr = to_fr();
auto other_fr = other.to_fr();
if (this_fr < other_fr)
return -1;
if (this_fr > other_fr)
return 1;
return 0;
}
private:
StringView unit_name() const;
Type m_type;
double m_value { 0 };
};
}
template<>
struct AK::Formatter<Web::CSS::Flex> : Formatter<StringView> {
ErrorOr<void> format(FormatBuilder& builder, Web::CSS::Flex const& flex)
{
return Formatter<StringView>::format(builder, flex.to_string());
}
};