Bug 279219 – text-emphasis-position overlapping ruby suppression broken for ruby-position: under / -webkit-ruby-position: after

• Component: Layout and Rendering
• Status: RESOLVED FIXED

[fantasai]

The code for checking if text-emphasis dots will overlap ruby doesn't check ruby-position, resulting in
- disappearing the emphasis dots when unnecessary
- overlapping dots and annotations when they're both on the under side

See testcase: https://software.hixie.ch/utilities/js/live-dom-viewer/?%3C!DOCTYPE%20html%3E%0A%3Chtml%20style%3D%22writing-mode%3A%20vertical-rl%22%3E%0A%3Cstyle%3Ep%20%7B%20text-emphasis%3A%20dot%3B%20%7D%3C%2Fstyle%3E%0A%3Cp%20style%3D%22text-emphasis-position%3A%20over%20left%22%3E%3Cruby%3Eleft%20dots%3Crt%3Eruby%3C%2Frt%3E%3C%2Fruby%3E%0A%3Cp%20style%3D%22text-emphasis-position%3A%20right%20over%22%3E%3Cruby%3Eright%20dots%3Crt%3Eruby%3C%2Frt%3E%3C%2Fruby%3E%0A%3Cp%20style%3D%22text-emphasis-position%3A%20left%20over%22%3E%3Cruby%20style%3D%22-webkit-ruby-position%3A%20after%3B%20ruby-position%3A%20under%22%3Eleft%20dots%3Crt%3Eruby%3C%2Frt%3E%3C%2Fruby%3E%0A%3Cp%20style%3D%22text-emphasis-position%3A%20over%20right%22%3E%3Cruby%20style%3D%22-webkit-ruby-position%3A%20after%3B%20ruby-position%3A%20under%22%3Eright%20dots%3Crt%3Eruby%3C%2Frt%3E%3C%2Fruby%3E%0A

[Radar WebKit Bug Importer]

<rdar://problem/135366189>

[fantasai]

Pull request: https://github.com/WebKit/WebKit/pull/33214

[EWS]

Committed 283282@main (1bd2e3ab2ace): <https://commits.webkit.org/283282@main>

Reviewed commits have been landed. Closing PR #33214 and removing active labels.