ladybird/Userland/Libraries/LibWeb/CSS/StyleValues/BackgroundStyleValue.cpp

80 lines
3.6 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
* Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "BackgroundStyleValue.h"
#include <LibWeb/CSS/StyleValues/StyleValueList.h>
namespace Web::CSS {
BackgroundStyleValue::BackgroundStyleValue(
ValueComparingNonnullRefPtr<StyleValue const> color,
ValueComparingNonnullRefPtr<StyleValue const> image,
ValueComparingNonnullRefPtr<StyleValue const> position,
ValueComparingNonnullRefPtr<StyleValue const> size,
ValueComparingNonnullRefPtr<StyleValue const> repeat,
ValueComparingNonnullRefPtr<StyleValue const> attachment,
ValueComparingNonnullRefPtr<StyleValue const> origin,
ValueComparingNonnullRefPtr<StyleValue const> clip)
: StyleValueWithDefaultOperators(Type::Background)
, m_properties {
.color = move(color),
.image = move(image),
.position = move(position),
.size = move(size),
.repeat = move(repeat),
.attachment = move(attachment),
.origin = move(origin),
.clip = move(clip),
.layer_count = 0
}
{
auto layer_count = [](auto style_value) -> size_t {
if (style_value->is_value_list())
return style_value->as_value_list().size();
else
return 1;
};
m_properties.layer_count = max(layer_count(m_properties.image), layer_count(m_properties.position));
m_properties.layer_count = max(m_properties.layer_count, layer_count(m_properties.size));
m_properties.layer_count = max(m_properties.layer_count, layer_count(m_properties.repeat));
m_properties.layer_count = max(m_properties.layer_count, layer_count(m_properties.attachment));
m_properties.layer_count = max(m_properties.layer_count, layer_count(m_properties.origin));
m_properties.layer_count = max(m_properties.layer_count, layer_count(m_properties.clip));
VERIFY(!m_properties.color->is_value_list());
}
BackgroundStyleValue::~BackgroundStyleValue() = default;
ErrorOr<String> BackgroundStyleValue::to_string() const
{
if (m_properties.layer_count == 1) {
return String::formatted("{} {} {} {} {} {} {} {}", TRY(m_properties.color->to_string()), TRY(m_properties.image->to_string()), TRY(m_properties.position->to_string()), TRY(m_properties.size->to_string()), TRY(m_properties.repeat->to_string()), TRY(m_properties.attachment->to_string()), TRY(m_properties.origin->to_string()), TRY(m_properties.clip->to_string()));
}
auto get_layer_value_string = [](ValueComparingNonnullRefPtr<StyleValue const> const& style_value, size_t index) {
if (style_value->is_value_list())
return style_value->as_value_list().value_at(index, true)->to_string();
return style_value->to_string();
};
StringBuilder builder;
for (size_t i = 0; i < m_properties.layer_count; i++) {
if (i)
TRY(builder.try_append(", "sv));
if (i == m_properties.layer_count - 1)
TRY(builder.try_appendff("{} ", TRY(m_properties.color->to_string())));
TRY(builder.try_appendff("{} {} {} {} {} {} {}", TRY(get_layer_value_string(m_properties.image, i)), TRY(get_layer_value_string(m_properties.position, i)), TRY(get_layer_value_string(m_properties.size, i)), TRY(get_layer_value_string(m_properties.repeat, i)), TRY(get_layer_value_string(m_properties.attachment, i)), TRY(get_layer_value_string(m_properties.origin, i)), TRY(get_layer_value_string(m_properties.clip, i))));
}
return builder.to_string();
}
}