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LibWeb: Compute display: contents as none for unusual elements

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https://drafts.csswg.org/css-display-3/#unbox-html specifies certain
elements that have their `display` style computed as `none` when
specified as `contents`.

This fixes at least one WPT test:
http://wpt.live/css/css-display/display-contents-suppression-dynamic-001.html
This commit is contained in:
Michael Watt 2024-11-08 20:14:37 +08:00 • committed by Andreas Kling
parent eef9a53eec
commit 3b1d1d4582
Notes: github-actions[bot] 2024-11-13 10:12:00 +00:00
31 changed files with 156 additions and 0 deletions
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8
Libraries/LibWeb/HTML/HTMLCanvasElement.cpp
View file

@ -14,6 +14,7 @@
#include <LibWeb/Bindings/HTMLCanvasElementPrototype.h>
#include <LibWeb/CSS/StyleComputer.h>
#include <LibWeb/CSS/StyleValues/CSSKeywordValue.h>
#include <LibWeb/CSS/StyleValues/DisplayStyleValue.h>
#include <LibWeb/CSS/StyleValues/RatioStyleValue.h>
#include <LibWeb/CSS/StyleValues/StyleValueList.h>
#include <LibWeb/DOM/Document.h>
@ -134,6 +135,13 @@ JS::GCPtr<Layout::Node> HTMLCanvasElement::create_layout_node(CSS::StyleProperti
return heap().allocate_without_realm<Layout::CanvasBox>(document(), *this, move(style));
}
void HTMLCanvasElement::adjust_computed_style(CSS::StyleProperties& style)
{
// https://drafts.csswg.org/css-display-3/#unbox
if (style.display().is_contents())
style.set_property(CSS::PropertyID::Display, CSS::DisplayStyleValue::create(CSS::Display::from_short(CSS::Display::Short::None)));
}
HTMLCanvasElement::HasOrCreatedContext HTMLCanvasElement::create_2d_context()
{
if (!m_context.has<Empty>())