`general.useragent.locale` is no more. All hail `intl.locale.requested`
Zibi Braniecki (Gandalf)
zbraniecki at mozilla.com
Wed Dec 6 00:01:01 UTC 2017
Thank you for bringing it up. I forgot to mention it in my original message.
We also removed `intl.locale.matchOS` and turned an empty
`intl.locale.requested` to mean "use OS locales" .
On Tue, Dec 5, 2017 at 3:47 PM, Mike Hommey <mh at glandium.org> wrote:
> On Tue, Dec 05, 2017 at 03:15:06PM -0800, Zibi Braniecki (Gandalf) wrote:
> > Hi all,
> > We just landed a major patch which replaces `general.useragent.locale`
> > with a new pref `intl.locale.requested`.
> > Historically, `general.useragent.locale` has been widely used to set a
> > locale for Firefox UI.
> > This year, we introduced a full new API called
> > which allows for setting and reading via setRequestedLocales and
> > getRequestedLocales, respectively.
> > Behind some linting and checking, the API still used
> > `general.useragent.locale` which limited us due to the nature of the pref
> > and how it stored data.
> > With the change, we introduce a new pref - `intl.locale.requested`, which
> > can be set in the same manner if needed, but can also handle a list of
> > locales separated via `,` character and is validated to accept only
> > well-formed BCP47 language tags  making our locale handling much more
> > flexible and resilient.
> > This is one of the last major changes in the grand rewrite of how Gecko
> > handles locales and language negotiation.
> > If you need to read/write the requested locales it is *highly* preferred
> > that you use the (mozI)LocaleService API over reading/writing to the pref
> > itself, but if you must, the code will be able to handle your change with
> > grace.
> > Over last months we removed all direct writes/reads of the pref, so I
> > there is nothing remaining, and we also introduced a migration code in
> > nsBrowserGlue for 59 users, but if you happen to encounter a regression,
> > please report it and CC me.
> > If you have any questions about it, let me know!
> Any change wrt intl.locale.matchOS?
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