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930ee495e7
This has always been a bit of a hack. Initially it made sense as a lot of properties that accept a length also accept `auto`, but while convenient, that leads to problems: It's easy to forget to check if a length is `auto`, and places that don't accept it end up with an invalid state lurking in the type system, which makes things unclear.
44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
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* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "LengthStyleValue.h"
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namespace Web::CSS {
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ValueComparingNonnullRefPtr<LengthStyleValue const> LengthStyleValue::create(Length const& length)
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{
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if (length.is_px()) {
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if (length.raw_value() == 0) {
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static auto value = adopt_ref(*new (nothrow) LengthStyleValue(CSS::Length::make_px(0)));
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return value;
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}
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if (length.raw_value() == 1) {
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static auto value = adopt_ref(*new (nothrow) LengthStyleValue(CSS::Length::make_px(1)));
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return value;
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}
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}
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return adopt_ref(*new (nothrow) LengthStyleValue(length));
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}
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ValueComparingNonnullRefPtr<StyleValue const> LengthStyleValue::absolutized(CSSPixelRect const& viewport_rect, Length::FontMetrics const& font_metrics, Length::FontMetrics const& root_font_metrics) const
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{
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if (auto length = m_length.absolutize(viewport_rect, font_metrics, root_font_metrics); length.has_value())
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return LengthStyleValue::create(length.release_value());
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return *this;
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}
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bool LengthStyleValue::equals(StyleValue const& other) const
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{
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if (type() != other.type())
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return false;
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auto const& other_length = other.as_length();
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return m_length == other_length.m_length;
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}
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}
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