1111955 - Underline on vertical Japanese/Korean text should appear on the right

Status: RESOLVED WORKSFORME

(Core :: CSS Parsing and Computation, defect)

Description

[Brian Birtles (:birtles)]

Attachment: Test case

Underlines in vertical Japanese text appear on the right ("above" the ruby), not the left. In the attached test case, it appears on the left.

This is specced non-normatively in CSS Text Decorations 3 by the following UA style rule:

  :root:lang(ja), [lang|=ja], :root:lang(ko), [lang|=ko] {
  /* default underline position is 'under right' for Japanese and Korean */
    text-underline-position: under right;
  }

  http://dev.w3.org/csswg/css-text-decor-3/#default-stylesheet

Fixing this may depend on implementing text-underline-position first.

Comment 1

[Simon Montagu :smontagu]

Attachment: Corrected testcase

There's a typo in the testcase: "jp" instead of "ja". FTR, we decided in bug 1074735 to default to underline on the left pending support for text-underline-position.

Comment 2

[Jonathan Kew [:jfkthame]]

See bug 1175789 for the interim fix we've taken for Japanese/Korean underlining; but this should eventually be updated to use text-underline-position in the UA stylesheet.

Comment 3

[Carlos Alén Silva]

The corrected test case attached is shown underlined on the right on Windows 10 64 bit, on both Firefox 63.0.3 (64-bit) and  Pale Moon 28.2.2 (64-bit). So this seems to be a WFM here.