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LibWeb: Implement CSS perspective property

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Psychpsyo 2025-11-10 15:10:38 +01:00 • committed by Jelle Raaijmakers
parent e44a97e508
commit eb21ea890c
Notes: github-actions[bot] 2025-11-11 23:42:45 +00:00
13 changed files with 108 additions and 2 deletions
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12
Libraries/LibWeb/Layout/Node.cpp
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@ -98,6 +98,12 @@ bool Node::can_contain_boxes_with_position_absolute() const
if (computed_values().scale().has_value())
return true;
// https://drafts.csswg.org/css-transforms-2/#propdef-perspective
// The use of this property with any value other than 'none' establishes a stacking context. It also establishes
// a containing block for all descendants, just like the 'transform' property does.
if (computed_values().perspective().has_value())
return true;
// https://drafts.csswg.org/css-contain-2/#containment-types
// 4. The layout containment box establishes an absolute positioning containing block and a fixed positioning
// containing block.
@ -284,6 +290,11 @@ bool Node::establishes_stacking_context() const
if (computed_values.view_transition_name().has_value() || will_change_property(CSS::PropertyID::ViewTransitionName))
return true;
// https://drafts.csswg.org/css-transforms-2/#propdef-perspective
// The use of this property with any value other than 'none' establishes a stacking context.
if (computed_values.perspective().has_value() || will_change_property(CSS::PropertyID::Perspective))
return true;
return computed_values.opacity() < 1.0f || will_change_property(CSS::PropertyID::Opacity);
}
@ -682,6 +693,7 @@ void NodeWithStyle::apply_style(CSS::ComputedProperties const& computed_style)
computed_values.set_transformations(computed_style.transformations());
computed_values.set_transform_box(computed_style.transform_box());
computed_values.set_transform_origin(computed_style.transform_origin());
computed_values.set_perspective(computed_style.perspective());
auto const& transition_delay_property = computed_style.property(CSS::PropertyID::TransitionDelay);
if (transition_delay_property.is_time()) {