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LibWeb: Parse view() for the animation-timeline CSS property

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Callum Law 2025-11-23 02:42:19 +13:00 • committed by Sam Atkins
parent 7d70714eac
commit c8d91c127e
Notes: github-actions[bot] 2025-11-28 13:25:26 +00:00
14 changed files with 198 additions and 44 deletions
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1
Libraries/LibWeb/CSS/StyleValues/StyleValue.cpp
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@ -76,6 +76,7 @@
#include <LibWeb/CSS/StyleValues/URLStyleValue.h>
#include <LibWeb/CSS/StyleValues/UnicodeRangeStyleValue.h>
#include <LibWeb/CSS/StyleValues/UnresolvedStyleValue.h>
#include <LibWeb/CSS/StyleValues/ViewFunctionStyleValue.h>
#include <LibWeb/HTML/Navigable.h>
#include <LibWeb/Layout/Node.h>

3
Libraries/LibWeb/CSS/StyleValues/StyleValue.h
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@ -92,7 +92,8 @@ namespace Web::CSS {
__ENUMERATE_CSS_STYLE_VALUE_TYPE(UnicodeRange, unicode_range, UnicodeRangeStyleValue) \
__ENUMERATE_CSS_STYLE_VALUE_TYPE(Unresolved, unresolved, UnresolvedStyleValue) \
__ENUMERATE_CSS_STYLE_VALUE_TYPE(URL, url, URLStyleValue) \
__ENUMERATE_CSS_STYLE_VALUE_TYPE(ValueList, value_list, StyleValueList)
__ENUMERATE_CSS_STYLE_VALUE_TYPE(ValueList, value_list, StyleValueList) \
__ENUMERATE_CSS_STYLE_VALUE_TYPE(ViewFunction, view_function, ViewFunctionStyleValue)
template<typename T>
struct ValueComparingNonnullRefPtr : public NonnullRefPtr<T> {

42
Libraries/LibWeb/CSS/StyleValues/ViewFunctionStyleValue.cpp Normal file
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@ -0,0 +1,42 @@
/*
* Copyright (c) 2025, Callum Law <callumlaw1709@outlook.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "ViewFunctionStyleValue.h"
namespace Web::CSS {
String ViewFunctionStyleValue::to_string(SerializationMode mode) const
{
StringBuilder builder;
builder.append("view("sv);
if (m_axis != Axis::Block)
builder.append(CSS::to_string(m_axis));
auto stringified_inset = m_inset->to_string(mode);
if (stringified_inset != "auto"sv) {
if (m_axis != Axis::Block)
builder.append(' ');
builder.append(stringified_inset);
}
builder.append(')');
return builder.to_string_without_validation();
}
ValueComparingNonnullRefPtr<StyleValue const> ViewFunctionStyleValue::absolutized(ComputationContext const& computation_context) const
{
auto absolutized_inset = m_inset->absolutized(computation_context);
if (absolutized_inset == m_inset)
return *this;
return ViewFunctionStyleValue::create(m_axis, absolutized_inset);
}
}

41
Libraries/LibWeb/CSS/StyleValues/ViewFunctionStyleValue.h Normal file
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@ -0,0 +1,41 @@
/*
* Copyright (c) 2025, Callum Law <callumlaw1709@outlook.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/CSS/Enums.h>
#include <LibWeb/CSS/StyleValues/StyleValue.h>
namespace Web::CSS {
class ViewFunctionStyleValue final : public StyleValueWithDefaultOperators<ViewFunctionStyleValue> {
public:
static ValueComparingNonnullRefPtr<ViewFunctionStyleValue const> create(Axis axis, NonnullRefPtr<StyleValue const> inset)
{
return adopt_ref(*new ViewFunctionStyleValue(axis, move(inset)));
}
virtual ~ViewFunctionStyleValue() override = default;
virtual String to_string(SerializationMode) const override;
bool properties_equal(ViewFunctionStyleValue const& other) const { return m_axis == other.m_axis && m_inset == other.m_inset; }
virtual ValueComparingNonnullRefPtr<StyleValue const> absolutized(ComputationContext const&) const override;
Axis axis() const { return m_axis; }
NonnullRefPtr<StyleValue const> inset() const { return m_inset; }
private:
explicit ViewFunctionStyleValue(Axis axis, NonnullRefPtr<StyleValue const> inset)
: StyleValueWithDefaultOperators(Type::ViewFunction)
, m_axis(axis)
, m_inset(move(inset))
{
}
Axis m_axis;
ValueComparingNonnullRefPtr<StyleValue const> m_inset;
};
}