On Thu, Dec 11, 2025 at 7:46 AM Igal Khitron <[email protected]> wrote:
>
> Thank you, Bryan. Actually, I wrote you just to explain that there are parts
> that do no work. But if you're interested, here are some details.
> 1) About the language.
> The extension has the code
> // Get RTL/LTR direction for the site. We can't use
> String.prototype.startsWith, since
> // that is unavailable in IE11, and doesn't take multiple values anyway. Use
> // String.prototype.match with a list of the language codes that should be RTL
> // this.siteID is based on the URL form of the wiki, and we assume that wikis
> that are
> // meant to be RTL are in the form `⧼rtl language code⧽.*`, and any URL that
> does not
> // match this is for an LTR wiki. See T274602 and T274313
> const isRTL = this.siteID.match(
> /^(ar|azb|ckb|dv|fa|glk|he|ks|lrc|mzn|nqo|pnb|ps|sd|ug|ur|yi)_/
> );
> // mw-content-ltr and -rtl classes are not enough to ensure that the text is
> formatted
> // in the correct direction, so add a manual direction attribute. See T287649
> // We still add those classes because they are also used by
> jQuery.makeCollapsible
> // to know if the collapse button should be on the right or left.
> this.$feedDiv = $( '<div>' )
> .attr( 'id', 'ext-globalwatchlist-feed-site-' + this.siteID )
> .attr( 'dir', isRTL ? 'rtl' : 'ltr' )
> .addClass( 'ext-globalwatchlist-feed-site' )
> .addClass( isRTL ? 'mw-content-rtl' : 'mw-content-ltr' )
> .append(
> headerTemplate.render( headerParams ),
> $content
> );
> This is how it decides which wiki is shown in ltr div, and which wiki in rtl
> div. It's not ideal, of course, but we coudn't find the better way back than.
> And since the Patch Demo wiki URL does not have such a match for a language
> code, it shows everything in ltr.
This business logic in the extension is very specific to the wiki farm
implementation that is used by the Wikimedia project's content wikis
like en.wikipedia.org. A potentially more robust way to detect the
content language is via the `mw.config.get("wgContentLanguage")` (full
site) or `mw.config.get("wgPageContentLanguage")` (current page)
javascript lookups. [0][1] Similarly user's chosen interface language
should be available from `mw.config.get("wgUserLanguage")`.
[0]: https://www.mediawiki.org/wiki/ResourceLoader/Core_modules#mediaWiki.config
[1]: https://www.mediawiki.org/wiki/Manual:Interface/JavaScript#mw.config
Bryan
--
Bryan Davis Wikimedia Foundation
Principal Software Engineer Boise, ID USA
[[m:User:BDavis (WMF)]] irc: bd808
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