mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-01-23 09:46:04 -05:00
b981e6f7bc
Many times, attribute mutation doesn't necessitate a full style invalidation on the element. However, the conditions are pretty elaborate, so this first version has a lot of false positives. We only need to invalidate style when any of these things apply: 1. The change may affect the match state of a selector somewhere. 2. The change may affect presentational hints applied to the element. For (1) in this first version, we have a fixed list of attribute names that may affect selectors. We also collect all names referenced by attribute selectors anywhere in the document. For (2), we add a new Element::is_presentational_hint() virtual that tells us whether a given attribute name is a presentational hint. This drastically reduces style work on many websites. As an example, https://cnn.com/ is once again browseable.
33 lines
887 B
C++
33 lines
887 B
C++
/*
|
|
* Copyright (c) 2020, the SerenityOS developers.
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <LibWeb/ARIA/Roles.h>
|
|
#include <LibWeb/HTML/HTMLElement.h>
|
|
|
|
namespace Web::HTML {
|
|
|
|
class HTMLTableCaptionElement final : public HTMLElement {
|
|
WEB_PLATFORM_OBJECT(HTMLTableCaptionElement, HTMLElement);
|
|
GC_DECLARE_ALLOCATOR(HTMLTableCaptionElement);
|
|
|
|
public:
|
|
virtual ~HTMLTableCaptionElement() override;
|
|
|
|
virtual bool is_presentational_hint(FlyString const&) const override;
|
|
virtual void apply_presentational_hints(GC::Ref<CSS::CascadedProperties>) const override;
|
|
|
|
// https://www.w3.org/TR/html-aria/#el-caption
|
|
virtual Optional<ARIA::Role> default_role() const override { return ARIA::Role::caption; }
|
|
|
|
private:
|
|
HTMLTableCaptionElement(DOM::Document&, DOM::QualifiedName);
|
|
|
|
virtual void initialize(JS::Realm&) override;
|
|
};
|
|
|
|
}
|