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LibWeb: Get reference height from closest non-anonymous ancestor
Ignore anonymous block boxes when resolving percentage weights that would refer to them, per the CSS 2 visual formatting model specification. This fixes the case when we create an anonymous block between an image which uses a percentage height relative to a parent which specifies a definite height. Fixes #19052.
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5 changed files with 79 additions and 3 deletions
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@ -112,6 +112,12 @@ public:
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Box const* containing_block() const;
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Box* containing_block() { return const_cast<Box*>(const_cast<Node const*>(this)->containing_block()); }
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// Closest non-anonymous ancestor box, to be used when resolving percentage values.
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// Anonymous block boxes are ignored when resolving percentage values that would refer to it:
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// the closest non-anonymous ancestor box is used instead.
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// https://www.w3.org/TR/CSS22/visuren.html#anonymous-block-level
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Box const* non_anyonymous_containing_block() const;
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bool establishes_stacking_context() const;
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bool can_contain_boxes_with_position_absolute() const;
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