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LibWeb: Parse aspect-ratio property

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Parse it, store the result in the ComputedValues, and also expose it to
ResolvedCSSStyleDeclaration.
This commit is contained in:
Sam Atkins
2023-06-08 15:25:16 +01:00
committed by Andreas Kling
parent 5e3da93f1a
commit 6fd3b39bef
Notes: sideshowbarker 2024-07-17 03:10:07 +09:00 
Author: https://github.com/AtkinsSJ
Commit: https://github.com/SerenityOS/serenity/commit/6fd3b39bef
Pull-request: https://github.com/SerenityOS/serenity/pull/19323
6 changed files with 102 additions and 0 deletions
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17
Userland/Libraries/LibWeb/Layout/Node.cpp
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@@ -1,5 +1,6 @@
/*
* Copyright (c) 2018-2023, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@@ -10,9 +11,11 @@
#include <LibWeb/CSS/StyleValues/BackgroundSizeStyleValue.h>
#include <LibWeb/CSS/StyleValues/BorderRadiusStyleValue.h>
#include <LibWeb/CSS/StyleValues/EdgeStyleValue.h>
#include <LibWeb/CSS/StyleValues/IdentifierStyleValue.h>
#include <LibWeb/CSS/StyleValues/LengthStyleValue.h>
#include <LibWeb/CSS/StyleValues/NumberStyleValue.h>
#include <LibWeb/CSS/StyleValues/PercentageStyleValue.h>
#include <LibWeb/CSS/StyleValues/RatioStyleValue.h>
#include <LibWeb/CSS/StyleValues/StyleValueList.h>
#include <LibWeb/CSS/StyleValues/TimeStyleValue.h>
#include <LibWeb/CSS/StyleValues/URLStyleValue.h>
@@ -707,6 +710,20 @@ void NodeWithStyle::apply_style(const CSS::StyleProperties& computed_style)
if (auto border_collapse = computed_style.border_collapse(); border_collapse.has_value())
computed_values.set_border_collapse(border_collapse.value());
auto aspect_ratio = computed_style.property(CSS::PropertyID::AspectRatio);
if (aspect_ratio->is_value_list()) {
auto& values_list = aspect_ratio->as_value_list().values();
if (values_list.size() == 2
&& values_list[0]->is_identifier() && values_list[0]->as_identifier().id() == CSS::ValueID::Auto
&& values_list[1]->is_ratio()) {
computed_values.set_aspect_ratio({ true, values_list[1]->as_ratio().ratio() });
}
} else if (aspect_ratio->is_identifier() && aspect_ratio->as_identifier().id() == CSS::ValueID::Auto) {
computed_values.set_aspect_ratio({ true, {} });
} else if (aspect_ratio->is_ratio()) {
computed_values.set_aspect_ratio({ false, aspect_ratio->as_ratio().ratio() });
}
}
bool Node::is_root_element() const