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LibWeb: Expose CSS shorthand -> longhand conversion

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This conversion needs to be done by KeyframEffect as well
This commit is contained in:
Matthew Olsson 2024-02-24 08:36:24 -07:00 • committed by Andreas Kling
parent af1f0c673e
commit 9e0ff9c140
2 changed files with 35 additions and 27 deletions
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59
Userland/Libraries/LibWeb/CSS/StyleComputer.cpp
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@ -351,18 +351,8 @@ static void sort_matching_rules(Vector<MatchingRule>& matching_rules)
});
}
static void set_property_expanding_shorthands(StyleProperties& style, CSS::PropertyID property_id, StyleValue const& value, DOM::Document& document, CSS::CSSStyleDeclaration const* declaration, StyleProperties::PropertyValues const& properties_for_revert)
void StyleComputer::for_each_property_expanding_shorthands(PropertyID property_id, StyleValue const& value, Function<void(PropertyID, StyleValue const&)> const& set_longhand_property)
{
auto set_longhand_property = [&](CSS::PropertyID property_id, StyleValue const& value) {
if (value.is_revert()) {
auto& property_in_previous_cascade_origin = properties_for_revert[to_underlying(property_id)];
if (property_in_previous_cascade_origin.has_value())
style.set_property(property_id, property_in_previous_cascade_origin->style, property_in_previous_cascade_origin->declaration);
} else {
style.set_property(property_id, value, declaration);
}
};
auto map_logical_property_to_real_property = [](PropertyID property_id) -> Optional<PropertyID> {
// FIXME: Honor writing-mode, direction and text-orientation.
switch (property_id) {
@ -421,19 +411,21 @@ static void set_property_expanding_shorthands(StyleProperties& style, CSS::Prope
}
};
if (auto real_property_id = map_logical_property_to_real_property(property_id); real_property_id.has_value())
return set_property_expanding_shorthands(style, real_property_id.value(), value, document, declaration, properties_for_revert);
if (auto real_property_id = map_logical_property_to_real_property(property_id); real_property_id.has_value()) {
for_each_property_expanding_shorthands(real_property_id.value(), value, set_longhand_property);
return;
}
if (auto real_property_ids = map_logical_property_to_real_properties(property_id); real_property_ids.has_value()) {
if (value.is_value_list() && value.as_value_list().size() == 2) {
auto const& start = value.as_value_list().values()[0];
auto const& end = value.as_value_list().values()[1];
set_property_expanding_shorthands(style, real_property_ids->start, start, document, declaration, properties_for_revert);
set_property_expanding_shorthands(style, real_property_ids->end, end, document, declaration, properties_for_revert);
for_each_property_expanding_shorthands(real_property_ids->start, start, set_longhand_property);
for_each_property_expanding_shorthands(real_property_ids->end, end, set_longhand_property);
return;
}
set_property_expanding_shorthands(style, real_property_ids->start, value, document, declaration, properties_for_revert);
set_property_expanding_shorthands(style, real_property_ids->end, value, document, declaration, properties_for_revert);
for_each_property_expanding_shorthands(real_property_ids->start, value, set_longhand_property);
for_each_property_expanding_shorthands(real_property_ids->end, value, set_longhand_property);
return;
}
@ -442,7 +434,7 @@ static void set_property_expanding_shorthands(StyleProperties& style, CSS::Prope
auto& properties = shorthand_value.sub_properties();
auto& values = shorthand_value.values();
for (size_t i = 0; i < properties.size(); ++i)
set_property_expanding_shorthands(style, properties[i], values[i], document, declaration, properties_for_revert);
for_each_property_expanding_shorthands(properties[i], values[i], set_longhand_property);
return;
}
@ -471,10 +463,10 @@ static void set_property_expanding_shorthands(StyleProperties& style, CSS::Prope
};
if (property_id == CSS::PropertyID::Border) {
set_property_expanding_shorthands(style, CSS::PropertyID::BorderTop, value, document, declaration, properties_for_revert);
set_property_expanding_shorthands(style, CSS::PropertyID::BorderRight, value, document, declaration, properties_for_revert);
set_property_expanding_shorthands(style, CSS::PropertyID::BorderBottom, value, document, declaration, properties_for_revert);
set_property_expanding_shorthands(style, CSS::PropertyID::BorderLeft, value, document, declaration, properties_for_revert);
for_each_property_expanding_shorthands(CSS::PropertyID::BorderTop, value, set_longhand_property);
for_each_property_expanding_shorthands(CSS::PropertyID::BorderRight, value, set_longhand_property);
for_each_property_expanding_shorthands(CSS::PropertyID::BorderBottom, value, set_longhand_property);
for_each_property_expanding_shorthands(CSS::PropertyID::BorderLeft, value, set_longhand_property);
// FIXME: Also reset border-image, in line with the spec: https://www.w3.org/TR/css-backgrounds-3/#border-shorthands
return;
}
@ -644,13 +636,26 @@ static void set_property_expanding_shorthands(StyleProperties& style, CSS::Prope
// (eg `grid` -> `grid-template` -> `grid-template-areas` & `grid-template-rows` & `grid-template-columns`)
VERIFY(value.is_css_wide_keyword());
for (auto longhand : longhands_for_shorthand(property_id))
set_property_expanding_shorthands(style, longhand, value, document, declaration, properties_for_revert);
for_each_property_expanding_shorthands(longhand, value, set_longhand_property);
return;
}
set_longhand_property(property_id, value);
}
void StyleComputer::set_property_expanding_shorthands(StyleProperties& style, CSS::PropertyID property_id, StyleValue const& value, CSS::CSSStyleDeclaration const* declaration, StyleProperties::PropertyValues const& properties_for_revert)
{
for_each_property_expanding_shorthands(property_id, value, [&](PropertyID shorthand_id, StyleValue const& shorthand_value) {
if (shorthand_value.is_revert()) {
auto& property_in_previous_cascade_origin = properties_for_revert[to_underlying(shorthand_id)];
if (property_in_previous_cascade_origin.has_value())
style.set_property(shorthand_id, property_in_previous_cascade_origin->style, property_in_previous_cascade_origin->declaration);
} else {
style.set_property(shorthand_id, shorthand_value, declaration);
}
});
}
void StyleComputer::set_all_properties(DOM::Element& element, Optional<CSS::Selector::PseudoElement::Type> pseudo_element, StyleProperties& style, StyleValue const& value, DOM::Document& document, CSS::CSSStyleDeclaration const* declaration, StyleProperties::PropertyValues const& properties_for_revert) const
{
for (auto i = to_underlying(CSS::first_longhand_property_id); i <= to_underlying(CSS::last_longhand_property_id); ++i) {
@ -673,9 +678,9 @@ void StyleComputer::set_all_properties(DOM::Element& element, Optional<CSS::Sele
if (property_value->is_unresolved())
property_value = Parser::Parser::resolve_unresolved_style_value({}, Parser::ParsingContext { document }, element, pseudo_element, property_id, property_value->as_unresolved());
if (!property_value->is_unresolved())
set_property_expanding_shorthands(style, property_id, property_value, document, declaration, properties_for_revert);
set_property_expanding_shorthands(style, property_id, property_value, declaration, properties_for_revert);
set_property_expanding_shorthands(style, property_id, value, document, declaration, properties_for_revert);
set_property_expanding_shorthands(style, property_id, value, declaration, properties_for_revert);
}
}
@ -697,7 +702,7 @@ void StyleComputer::cascade_declarations(StyleProperties& style, DOM::Element& e
if (property.value->is_unresolved())
property_value = Parser::Parser::resolve_unresolved_style_value({}, Parser::ParsingContext { document() }, element, pseudo_element, property.property_id, property.value->as_unresolved());
if (!property_value->is_unresolved())
set_property_expanding_shorthands(style, property.property_id, property_value, m_document, &match.rule->declaration(), properties_for_revert);
set_property_expanding_shorthands(style, property.property_id, property_value, &match.rule->declaration(), properties_for_revert);
}
}
@ -716,7 +721,7 @@ void StyleComputer::cascade_declarations(StyleProperties& style, DOM::Element& e
if (property.value->is_unresolved())
property_value = Parser::Parser::resolve_unresolved_style_value({}, Parser::ParsingContext { document() }, element, pseudo_element, property.property_id, property.value->as_unresolved());
if (!property_value->is_unresolved())
set_property_expanding_shorthands(style, property.property_id, property_value, m_document, inline_style, properties_for_revert);
set_property_expanding_shorthands(style, property.property_id, property_value, inline_style, properties_for_revert);
}
}
}