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LibWeb: Streamline how inline CSS style declarations are constructed

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When parsing the "style" attribute on elements, we'd previously ask the
CSS parser for a PropertyOwningCSSStyleDeclaration. Then we'd create a
new ElementCSSInlineStyleDeclaration and transfer the properties from
the first object to the second object.

This patch teaches the parser to make ElementCSSInlineStyleDeclaration
objects directly.
This commit is contained in:
Andreas Kling
2022-03-29 16:01:38 +02:00
parent 3efa6cedec
commit 427beb97b5
5 changed files with 34 additions and 36 deletions
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9
Userland/Libraries/LibWeb/DOM/Element.cpp
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@@ -255,11 +255,8 @@ void Element::parse_attribute(const FlyString& name, const String& value)
if (m_class_list)
m_class_list->associated_attribute_changed(value);
} else if (name == HTML::AttributeNames::style) {
auto parsed_style = parse_css_style_attribute(CSS::ParsingContext(document()), value);
if (!parsed_style.is_null()) {
m_inline_style = CSS::ElementInlineCSSStyleDeclaration::create_and_take_properties_from(*this, parsed_style.release_nonnull());
set_needs_style_update(true);
}
m_inline_style = parse_css_style_attribute(CSS::ParsingContext(document()), value, *this);
set_needs_style_update(true);
}
}
@@ -452,7 +449,7 @@ void Element::set_shadow_root(RefPtr<ShadowRoot> shadow_root)
NonnullRefPtr<CSS::CSSStyleDeclaration> Element::style_for_bindings()
{
if (!m_inline_style)
m_inline_style = CSS::ElementInlineCSSStyleDeclaration::create(*this);
m_inline_style = CSS::ElementInlineCSSStyleDeclaration::create(*this, {}, {});
return *m_inline_style;
}