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LibWeb: Accept height: {min,max,fit}-content

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And treat them as "auto" for now, per CSS-SIZING-3, with a FIXME about
supporting more layout directions.

This fixes an issue on MDN where `height: max-content` was not
overriding height from non-CSS presentational hints.
This commit is contained in:
Andreas Kling 2023-08-20 18:25:54 +02:00
parent 90e95d38d7
commit 27ddfa84fa
4 changed files with 49 additions and 2 deletions
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12
Userland/Libraries/LibWeb/Layout/FormattingContext.cpp
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@ -1627,8 +1627,18 @@ bool FormattingContext::should_treat_width_as_auto(Box const& box, AvailableSpac
bool FormattingContext::should_treat_height_as_auto(Box const& box, AvailableSpace const& available_space)
{
if (box.computed_values().height().is_auto())
auto computed_height = box.computed_values().height();
if (computed_height.is_auto())
return true;
// https://www.w3.org/TR/css-sizing-3/#valdef-width-min-content
// https://www.w3.org/TR/css-sizing-3/#valdef-width-max-content
// https://www.w3.org/TR/css-sizing-3/#valdef-width-fit-content
// For a box’s block size, unless otherwise specified, this is equivalent to its automatic size.
// FIXME: If height is not the block axis size, then we should be concerned with the width instead.
if (computed_height.is_min_content() || computed_height.is_max_content() || computed_height.is_fit_content())
return true;
if (box.computed_values().height().contains_percentage()) {
if (available_space.height.is_max_content())
return true;