[jlreq] Should bars in HTML progress and meter elements be read upwards or downwards in vertical text? (#342)

r12a has just created a new issue for https://github.com/w3c/jlreq:

== Should bars in HTML progress and meter elements be read upwards or downwards in vertical text? ==
## Background

This question was prompted by the HTML issue at https://github.com/whatwg/html/issues/8413

Currently,  Blink and WebKit don't make these inline controls vertical (see https://github.com/w3c/clreq/issues/247).

Gecko, however, does display the control vertically, but the reading direction of the progress bar when `progress` or `meter` elements are used in HTML is bottom to top.

<img width="93" alt="Screenshot 2022-10-25 at 16 41 48" src="https://user-images.githubusercontent.com/4839211/197819627-cc81dd85-7b77-4958-92dd-ce795c13a59b.png">

[Test for both](https://w3c.github.io/i18n-tests/exploratory/vertical_text/int-vertical-text?text=%3Cp%3E%E3%83%81%E3%82%B1%E3%83%83%E3%83%88%E8%B2%A9%E5%A3%B2%EF%BC%9A%3Cmeter%20value%3D%2270%22%20min%3D%220%22%20max%3D%22100%22%3E%2070%25%20%3C%2Fmeter%3E%3C%2Fp%3E%0A%3Cp%3E%E3%83%81%E3%82%B1%E3%83%83%E3%83%88%E8%B2%A9%E5%A3%B2%EF%BC%9A%3Cprogress%20min%3D%220%22%20max%3D%22100%22%20value%3D%2275%22%3E%3C%2Fprogress%3E%3C%2Fp%3E&lang=ja&fontSize=23&height=514&writingMode=vertical-rl&textOrientation=upright&textCombineUpright=none&a=%5BExploratory%20test%5D%20When%20a%20progress%20or%20meter%20element%20occurs%20in%20vertical%20text%2C%20is%20the%20control%20read%20upwards%20or%20downwards%3F&i=If%20downwards%2C%20the%20shaded%20part%20will%20start%20at%20the%20top%20of%20the%20control.)

## Question

 Is it preferable for the direction of the control to follow the direction of the surrounding text (ie. start at the top of the control), or should it always progress from bottom to top?


Please view or discuss this issue at https://github.com/w3c/jlreq/issues/342 using your GitHub account


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Received on Tuesday, 25 October 2022 15:43:56 UTC