[nicoburns]

LLM Contributions: Written by Devin (Cognition AI) under human direction.

Since linebender#790, calculate_content_widths only samples running_max_width at forced breaks and at the end, so a negative-width in-flow inline box (Blitz passes inline-block margin boxes, e.g. an empty inline-block with margin-right: -50px) can make max < min:

boxes [100, -50]  ->  min = 100, max = 50

CSS Sizing 3 (see also csswg-drafts#12076) requires the max-content size to be floored by the min-content size, so this adds max_width = max_width.max(min_width) before returning, plus a regression test. Fixes WPT css/css-sizing/min-content-le-max-content.tentative.html in Blitz once picked up.

Changelog

Fixed

Parley

• Layout::calculate_content_widths no longer returns a max-content width smaller than the min-content width when the layout contains negative-width inline boxes.

Link to Devin session: https://dioxus.staging.devinenterprise.com/sessions/da7669e341814cc7976e4ebf32b7eacb
Open in Devin Desktop: https://dioxus.staging.devinenterprise.com/desktop/session/da7669e341814cc7976e4ebf32b7eacb?variant=devin-insiders
Requested by: @nicoburns

[staging-devin-ai-integration]

I'll fix CI failures and address comments from users with write access that start with 'DevinAI' or '@devin'.

• Disable automatic comment, CI, and merge conflict monitoring

[nicoburns]

Merged upstream as linebender#834.