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LibWeb: Resolve not auto height before child box layout in BFC

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It's possible to resolve box's height without doing inner layout, when
computed value is not auto. Doing that fixes height resolution, when box
with percentage height has containing block with percentage height.

Before:
- resolve used width
- layout box's content
- resolve height

After:
- resolve used width
- resolve height if treated as not auto
- layout box's content
- resolve height if treated as auto
This commit is contained in:
Aliaksandr Kalenik 2024-09-27 17:49:02 +02:00 • committed by Alexander Kalenik
commit 9098e39a43
Notes: github-actions[bot] 2024-09-27 18:26:33 +00:00
5 changed files with 74 additions and 25 deletions
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6
Userland/Libraries/LibWeb/Layout/InlineFormattingContext.cpp
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@ -177,16 +177,18 @@ void InlineFormattingContext::dimension_box_on_line(Box const& box, LayoutMode l
box_state.set_content_width(width);
parent().resolve_used_height_if_not_treated_as_auto(box, AvailableSpace(AvailableSize::make_definite(width), AvailableSize::make_indefinite()));
// NOTE: Flex containers with `auto` height are treated as `max-content`, so we can compute their height early.
if (box_state.has_definite_height() || box.display().is_flex_inside())
parent().compute_height(box, AvailableSpace(AvailableSize::make_definite(width), AvailableSize::make_indefinite()));
parent().resolve_used_height_if_treated_as_auto(box, AvailableSpace(AvailableSize::make_definite(width), AvailableSize::make_indefinite()));
auto independent_formatting_context = layout_inside(box, layout_mode, box_state.available_inner_space_or_constraints_from(*m_available_space));
auto const& height_value = box.computed_values().height();
if (should_treat_height_as_auto(box, *m_available_space)) {
// FIXME: (10.6.6) If 'height' is 'auto', the height depends on the element's descendants per 10.6.7.
parent().compute_height(box, AvailableSpace(AvailableSize::make_indefinite(), AvailableSize::make_indefinite()));
parent().resolve_used_height_if_treated_as_auto(box, AvailableSpace(AvailableSize::make_indefinite(), AvailableSize::make_indefinite()));
} else {
auto inner_height = calculate_inner_height(box, AvailableSize::make_definite(m_containing_block_used_values.content_height()), height_value);
box_state.set_content_height(inner_height);