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LibWeb: Move use pseudo element styles from TreeBuilder to StyleComputer

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The styling of elements using the `use_pseudo_element()` was only
applied on layout. When an element style was recomputed later that
styling was not overruled with the pseudo element selector styles.
This moves the styling override from `TreeBuilder.cpp` to
`StyleComputer.cpp`. Now the styles are always correctly applied.
I also removed the method `property_id_by_index()` because it was
not needed anymore.

Als some calls to `invalidate_layout()` in the Meter, Progress and
Select elements where not needed anymore because the style values
are update on the changing of the style attribute.

This fixes issue #22278.
This commit is contained in:
Bastiaan van der Plaat 2023-12-17 21:03:28 +01:00 • committed by Andreas Kling
parent 7578620f25
commit a05fd28b7b
11 changed files with 44 additions and 49 deletions
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5
Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.cpp
View file

@ -59,11 +59,6 @@ String PropertyOwningCSSStyleDeclaration::item(size_t index) const
return MUST(String::from_utf8(CSS::string_from_property_id(m_properties[index].property_id)));
}
CSS::PropertyID PropertyOwningCSSStyleDeclaration::property_id_by_index(size_t index) const
{
return m_properties[index].property_id;
}
JS::NonnullGCPtr<ElementInlineCSSStyleDeclaration> ElementInlineCSSStyleDeclaration::create(DOM::Element& element, Vector<StyleProperty> properties, HashMap<FlyString, StyleProperty> custom_properties)
{
auto& realm = element.realm();

2
Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.h
View file

@ -24,7 +24,6 @@ public:
virtual size_t length() const = 0;
virtual String item(size_t index) const = 0;
virtual CSS::PropertyID property_id_by_index(size_t index) const = 0;
virtual Optional<StyleProperty> property(PropertyID) const = 0;
@ -64,7 +63,6 @@ public:
virtual size_t length() const override;
virtual String item(size_t index) const override;
virtual CSS::PropertyID property_id_by_index(size_t index) const override;
virtual Optional<StyleProperty> property(PropertyID) const override;

5
Userland/Libraries/LibWeb/CSS/ResolvedCSSStyleDeclaration.cpp
View file

@ -82,11 +82,6 @@ String ResolvedCSSStyleDeclaration::item(size_t index) const
return MUST(String::from_utf8(string_from_property_id(property_id)));
}
CSS::PropertyID ResolvedCSSStyleDeclaration::property_id_by_index(size_t index) const
{
return static_cast<PropertyID>(index + to_underlying(first_longhand_property_id));
}
static NonnullRefPtr<StyleValue const> style_value_for_background_property(Layout::NodeWithStyle const& layout_node, Function<NonnullRefPtr<StyleValue const>(BackgroundLayerData const&)> callback, Function<NonnullRefPtr<StyleValue const>()> default_value)
{
auto const& background_layers = layout_node.background_layers();

1
Userland/Libraries/LibWeb/CSS/ResolvedCSSStyleDeclaration.h
View file

@ -21,7 +21,6 @@ public:
virtual size_t length() const override;
virtual String item(size_t index) const override;
virtual CSS::PropertyID property_id_by_index(size_t index) const override;
virtual Optional<StyleProperty> property(PropertyID) const override;
virtual WebIDL::ExceptionOr<void> set_property(PropertyID, StringView css_text, StringView priority) override;

14
Userland/Libraries/LibWeb/CSS/StyleComputer.cpp
View file

@ -2136,6 +2136,20 @@ ErrorOr<RefPtr<StyleProperties>> StyleComputer::compute_style_impl(DOM::Element&
{
build_rule_cache_if_needed();
// Special path for elements that use pseudo element as style selector
if (element.use_pseudo_element().has_value()) {
auto& parent_element = verify_cast<HTML::HTMLElement>(*element.root().parent_or_shadow_host());
auto style = TRY(compute_style(parent_element, *element.use_pseudo_element()));
// Merge back inline styles
if (element.has_attribute(HTML::AttributeNames::style)) {
auto* inline_style = parse_css_style_attribute(CSS::Parser::ParsingContext(document()), *element.get_attribute(HTML::AttributeNames::style), element);
for (auto const& property : inline_style->properties())
style->set_property(property.property_id, property.value);
}
return style;
}
auto style = StyleProperties::create();
// 1. Perform the cascade. This produces the "specified style"
bool did_match_any_pseudo_element_rules = false;