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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
31 changed files with 156 additions and 0 deletions
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8
Libraries/LibWeb/HTML/HTMLMeterElement.cpp
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@@ -6,6 +6,7 @@
*/
#include <LibWeb/Bindings/HTMLMeterElementPrototype.h>
#include <LibWeb/CSS/StyleValues/DisplayStyleValue.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/ElementFactory.h>
#include <LibWeb/DOM/ShadowRoot.h>
@@ -177,6 +178,13 @@ void HTMLMeterElement::removed_from(DOM::Node*)
set_shadow_root(nullptr);
}
void HTMLMeterElement::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)));
}
void HTMLMeterElement::create_shadow_tree_if_needed()
{
if (shadow_root())