LibWeb: Take used width into account in flex item intrinsic cross sizing

When calculating intrinsic heights of flex items, we should use the used
width if available.

This primarily matters for item cross sizing, since that happens after
we've determined the item's main size.

1 files changed, 8 insertions, 2 deletions

diff --git a/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp
index a290c85047..6b121f7dd9 100644
--- a/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp
+++ b/Userland/Libraries/LibWeb/Layout/FlexFormattingContext.cpp
@@ -1868,12 +1868,18 @@ CSSPixels FlexFormattingContext::calculate_max_content_main_size(FlexItem const&
 
 CSSPixels FlexFormattingContext::calculate_min_content_cross_size(FlexItem const& item) const
 {
-    return is_row_layout() ? calculate_min_content_height(item.box, m_available_space_for_items->space.width) : calculate_min_content_width(item.box);
+    if (is_row_layout()) {
+        return calculate_min_content_height(item.box, item.main_size.has_value() ? AvailableSize::make_definite(item.main_size.value()) : AvailableSize::make_indefinite());
+    }
+    return calculate_min_content_width(item.box);
 }
 
 CSSPixels FlexFormattingContext::calculate_max_content_cross_size(FlexItem const& item) const
 {
-    return is_row_layout() ? calculate_max_content_height(item.box, m_available_space_for_items->space.width) : calculate_max_content_width(item.box);
+    if (is_row_layout()) {
+        return calculate_max_content_height(item.box, item.main_size.has_value() ? AvailableSize::make_definite(item.main_size.value()) : AvailableSize::make_indefinite());
+    }
+    return calculate_max_content_width(item.box);
 }
 
 // https://drafts.csswg.org/css-flexbox-1/#stretched