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LibWeb: Make intrinsic heights dependent on available width

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After speaking with fantasai at CSSWG about this, it turns out I had
misunderstood intrinsic heights. I originally believed all intrinsic
sizes had to be computed with no influence from the surrounding context.

As it turns out, intrinsic heights *are* influenced by the available
width, since it's needed to determine where lines break.

The APIs for calculating min-content and max-content heights now take
the available width as inputs. This instantly improves layout in many
cases where we'd previously make things way too wide.
This commit is contained in:
Andreas Kling
2022-10-03 23:37:38 +02:00
parent b4f9db84ca
commit b13a8706e1
5 changed files with 48 additions and 57 deletions
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2
Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
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@@ -311,7 +311,7 @@ void BlockFormattingContext::compute_height(Box const& box, AvailableSpace const
height = compute_height_for_replaced_element(m_state, verify_cast<ReplacedBox>(box), available_space);
} else {
if (should_treat_height_as_auto(box, available_space)) {
height = compute_auto_height_for_block_level_element(box);
height = compute_auto_height_for_block_level_element(box, available_space);
} else {
height = computed_values.height().resolved(box, containing_block_height).to_px(box);
}