Proposal: i18n-system-languages #569

carlosjeurissen · 2024-03-18T22:52:48Z

This PR adds the proposal for both i18n.getPreferredSystemLanguages() and i18n.getSystemUILanguage() previously called i18n.getOSLanguage(), which all vendors are supportive on as discussed in #252

rdcronin

Thanks, Carlos!

proposals/i18n-getOSLanguage.md

rdcronin · 2024-03-28T16:24:58Z

proposals/i18n-getOSLanguage.md

+```json
+{
+  "name": "getOSLanguage",
+  "type": "function",
+  "nocompile": true,
+  "description": "Gets the UI language of the Operating System. This is different from $(ref:i18n.getUILanguage) which returns the UI language of the web browser.",
+  "parameters": [],
+  "returns": {
+    "type": "string",
+    "description": "An IETF BCP 47 language tag such as en-US or pt-BR."
+  }
+}
+```


nit: I'd lean towards describing these in typescript (for now), since it's a more portable format than Chromium's use of JSON schema. Especially things like "nocompile" are very Chromium-specific.

That said, if other browser vendors are fine with (or prefer) this, I don't feel strongly, since, well, this is obviously good enough for Chromium : )

Agreed, TypeScript would make more sense.

rdcronin · 2024-03-28T16:25:37Z

proposals/i18n-getOSLanguage.md

+  "nocompile": true,
+  "description": "Gets the UI language of the Operating System. This is different from $(ref:i18n.getUILanguage) which returns the UI language of the web browser.",
+  "parameters": [],
+  "returns": {


This implies a synchronous return. Is that a requirement?

(I'm not sure if we'd have the OS language available in the renderer today, unlike the UI language)

In Mozilla Firefox, the OS language is available in the renderer synchronously. In general the motivation to return synchronously is to match i18n.getUILanguage. Having it synchronously is also very welcome to load locale data as quickly as possible for bidi, lang attributes, locale specific files and potentially in the future, passing it to an API like i18n.getLanguageDictionary

rdcronin · 2024-03-28T16:28:32Z

proposals/i18n-getOSLanguage.md

+**Document Metadata**
+
+**Author:** carlosjeurissen
+


This dropped the "sponsoring browser" item here.

That was added to ensure the proposals here don't become a graveyard of aspirational APIs and instead reflect ones that at least one browser is committed to implementing in the immediate future.

I'll need to do some quick investigation into the implementation. If it looks straightforward, I'm comfortable putting Google Chrome as the sponsoring browser.

Added back the Sponsoring browser with a TBD.

I'm supportive of sponsoring for Safari and plan to implement it as soon as we have consensus.

proposals/i18n-getOSLanguage.md

carlosjeurissen · 2024-03-28T18:36:27Z

@xeenon Thanks for reviewing and the willingness to implement this.

@rdcronin Thanks for reviewing and your comments. Most feedback has been implemented in the proposal. Thanks for offering to sponser the feature as browser.

@Rob--W Reading from your comment in the reading notes of Today's (2024-03-28) meeting:

This proposal doesn’t follow the new process. One of the aspects of the new process template is that there should be at least one browser committing to implementing the API.

It was under my impression there was general support for this feature across browsers and the next step would be a proposal. However I understand your concerns regarding ending up with many proposals without browsers moving forward to actually implement them. So I went ahead and created a patch for Firefox.
See: https://bugzilla.mozilla.org/show_bug.cgi?id=1888486

Rob--W · 2024-03-28T23:29:51Z

@Rob--W Reading from your comment in the reading notes of Today's (2024-03-28) meeting:

This proposal doesn’t follow the new process. One of the aspects of the new process template is that there should be at least one browser committing to implementing the API.

It was under my impression there was general support for this feature across browsers and the next step would be a proposal.

Part of the proposal template includes an item about the "sponsoring" browser. As Devlin commented elsewhere in the PR, the purpose of that is to encourage proposals that reflect APIs that have a path towards realization rather than just being aspirational.

However I understand your concerns regarding ending up with many proposals without browsers moving forward to actually implement them. So I went ahead and created a patch for Firefox.
See: https://bugzilla.mozilla.org/show_bug.cgi?id=1888486

Thanks for the bug and patch!

proposals/i18n-getOSLanguage.md

Rob--W · 2024-03-30T23:57:28Z

proposals/i18n-getOSLanguage.md

+
+`i18n.getOSLanguage()` would synchronously return a [BCP47 language tag](https://www.w3.org/International/core/langtags/rfc3066bis.html) like `i18n.getUILanguage()` does right now.
+
+It would follow the following signature for [i18n.json](https://chromium.googlesource.com/chromium/src/+/refs/heads/main/extensions/common/api/i18n.json):


When referencing source code, try to use a permalink where possible. In this case there has been a request to use IDL instead of JSON, so this line will probably end up being dropped. If not, here is the permalink: https://chromium.googlesource.com/chromium/src/+/4299ce68496b32ba309e2f012e0db5b4b8cd478a/extensions/common/api/i18n.json

Good to know! Updated the proposal to reflect this!

Rob--W · 2024-03-31T00:00:04Z

proposals/i18n-getOSLanguage.md

+
+**Summary**
+
+Allow to get the language of your operating system as an [BCP47 language tag](https://www.w3.org/International/core/langtags/rfc3066bis.html).


Given the discussion starting from #252 (comment), should we rename the proposal to i18n.getOSLanguages and let it return an array?

And also, guarantee the array to be non-empty?

hanguokai · 2024-03-31T00:57:54Z

As the discussion deepens (#252), I think there are four concepts here:

The Browser UI Language
The Browser Accept Languages
The OS UI Language
The OS Accept Languages

So, ideally there should be four functions:

i18n.getBrowserUILanguage()
i18n.getBrowserAcceptLanguages()
i18n.getOSUILanguage()
i18n.getOSAcceptLanguages()

And deprecate the current i18n.getUILanguage() and i18n.getAcceptLanguages().

Or using another design:

// return a single string for UI language
i18n.getUILanguage(
    prefer: "browser" // or "os"
);

// return an array for accept languages
i18n.getAcceptLanguages(
    prefer: "browser" // or "os"
);

proposals/i18n-getOSLanguage.md

carlosjeurissen · 2024-05-23T09:38:46Z

Updated the proposal which addresses the following:
i18n.getOSLanguage() has been renamed to i18n.getSystemUILanguage() to better indicate it is supposed to be the user interface of the operating system. Not the first preferred language specified in the operating system.

i18n.getPreferredSystemLanguages() has been added which returns the above mentioned preferred languages specified in the operating system. This aligns with the same API and name available in Electron apps.

For i18n.getPreferredSystemLanguages(), a patch for Firefox has been made, see: https://bugzilla.mozilla.org/show_bug.cgi?id=1888486

proposals/i18n-system-languages.md

aphillips · 2024-06-14T14:08:04Z

proposals/i18n-system-languages.md

+
+#### Use Cases
+
+Having the original system language(s) is useful for language-related extensions and for extensions who want to provide translations more true to the system language. For example, to adapt to a specific sub-language, like Belgium-Dutch (nl-BE). While i18n.getUILanguage would return 'nl'.


The example here is not very clear. There is a tendency to think that the primary language subtag (nl in the examples here) is "the language", but there are language variations that depend on additional subtags, such as script or region. For example, zh-Hans (Simplified Chinese) vs. zh-Hant (Traditional Chinese). Thus, the UI language is not guaranteed to be a single subtag.

It's also more useful/helpful to talk about the locale than it is to talk about the language, even if, for historical reasons, we use the word "Language" in the API names.

Note that locale means more than just language adaptation. Frequently, locale-based variations in number, date, time, measurement, etc. formatting constitute a key part of adaptation.

Note too that the use cases here are incomplete. The PR lists a number of different reasons, but you only have one in the document itself.

Thus:

Suggested change

Having the original system language(s) is useful for language-related extensions and for extensions who want to provide translations more true to the system language. For example, to adapt to a specific sub-language, like Belgium-Dutch (nl-BE). While i18n.getUILanguage would return 'nl'.

Extension authors might want to obtain the locale used by the user agent's host environment in order to format values (such as numbers, dates, and so forth) or do other locale-affected operations (such as list sorting) according to expectations of the user. For example, formatting the date `2024-06-15` varies between `en-US` (6/15/2024) and `en-GB` (15/6/2024), whereas `i18n.getUILanguage` might return only `en` (English).

Extension authors might want to obtain the locale used by the user agent's host environment to better match the runtime environment's localization. For example, the operating system might be running in `ff-NG` (Fulani as used in Nigeria), but the user agent might not be localized into this language and return `en` (English) for `i18n.getUILanguage`.

@aphillips Thanks so much for the suggestions! Applied the suggested change.

Also added a better example of the purest form use-case which describes i18n.getUILanguage returning a language tag with additional subtags which might not be sufficient for the user.

Lastly rewritten sentences to use locale instead of language where it makes sense based on your suggestion.

aphillips · 2024-06-14T14:10:02Z

proposals/i18n-system-languages.md

+
+### Schema
+
+`i18n.getPreferredSystemLanguages()` would asynchronously return a list of [BCP47 language tag](https://www.rfc-editor.org/bcp/bcp47.html) like `i18n.getAcceptLanguages()` does right now.


Probably you want to say that it returns an ordered list (BCP47 calls this a "language priority list").

Note that most operating systems don't provide a feature like this.

@aphillips thanks for noting and clarifying! Updated the sentence to reflect these suggestions. It is indeed meant to be an ordered list. As far as I know both mac and windows support this. But I could be wrong?

Co-authored-by: Addison Phillips <addisonI18N@gmail.com>

xeenon · 2024-06-29T19:47:20Z

@carlosjeurissen There seems to have been a rebase issue, where this PR picked up a bunch of other changes from the repo outside of your proposal.

…stemUILanguage

Co-authored-by: Pavel Djundik <xPaw@users.noreply.github.com>

Co-authored-by: Addison Phillips <addisonI18N@gmail.com>

carlosjeurissen · 2024-06-30T06:09:45Z

@xeenon Thanks for noting! Has been addressed.

Co-authored-by: Simeon Vincent <svincent@gmail.com>

carlosjeurissen · 2024-09-24T19:02:26Z

Based on some of the feedback during TPAC, updated this PR and updated the Firefox patch.
See:
https://phabricator.services.mozilla.com/D206064
https://bugzilla.mozilla.org/show_bug.cgi?id=1888486

…cale tags

xeenon · 2024-10-02T16:22:03Z

proposals/i18n-system-languages.md

@@ -67,11 +70,14 @@ It would follow the following signature for [i18n.json](https://chromium.googles
  "name": "getSystemUILanguage",
  "type": "function",
  "nocompile": true,
-  "description": "Gets the current UI language of the Operating System. This is different from $(ref:i18n.getUILanguage) which returns the UI language of the web browser.",
+  "description": "Gets the current UI locale of the Operating System. This is different from $(ref:i18n.getUILanguage) which returns the UI locale of the web browser. This locale could include additional information like preferred datetime format and number system if supported by the OS.",


Is the "additional information" part a standard? I know Apple platforms can include it, but that isn't something we have had in web extensions before.

@xeenon yes, this is specified by unicode. This was discussed during the shared session with the WECG/I18NWG meeting at TPAC. However, giving a further look at this I see how this should not be part of the getSystemUILanguage. Updated the PR to reflect this. Still, providing this information can be useful, but it should be implemented using some other method / proposal.

https://bugs.webkit.org/show_bug.cgi?id=280586 Reviewed by NOBODY (OOPS!). WECG issue: w3c/webextensions#252 WECG proposal: w3c/webextensions#569 Also changed the i18n APIs to return `"und"` instead of `undefined` when there is no language code. * Source/WebKit/Platform/spi/Cocoa/FoundationSPI.h: * Source/WebKit/Shared/Extensions/WebExtensionUtilities.mm: (WebKit::toWebAPI): Return "und" where then is no language code. * Source/WebKit/WebProcess/Extensions/API/Cocoa/WebExtensionAPILocalizationCocoa.mm: (WebKit::WebExtensionAPILocalization::getPreferredSystemLanguages): (WebKit::WebExtensionAPILocalization::getSystemUILanguage): * Source/WebKit/WebProcess/Extensions/API/WebExtensionAPILocalization.h: * Source/WebKit/WebProcess/Extensions/Interfaces/WebExtensionAPILocalization.idl: * Tools/TestWebKitAPI/Tests/WebKitCocoa/WKWebExtensionAPILocalization.mm: (TestWebKitAPI::localeStringInWebExtensionFormat): Return "und". (TestWebKitAPI::TEST(WKWebExtensionAPILocalization, i18n)): (TestWebKitAPI::TEST(WKWebExtensionAPILocalization, i18nWithFallback)): (TestWebKitAPI::TEST(WKWebExtensionAPILocalization, i18nWithoutMessages)): (TestWebKitAPI::TEST(WKWebExtensionAPILocalization, i18nWithoutDefaultLocale)):

https://bugs.webkit.org/show_bug.cgi?id=280586 Reviewed by Brian Weinstein. WECG issue: w3c/webextensions#252 WECG proposal: w3c/webextensions#569 Also changed the i18n APIs to return `"und"` instead of `undefined` when there is no language code. * Source/WebKit/Platform/spi/Cocoa/FoundationSPI.h: * Source/WebKit/Shared/Extensions/WebExtensionUtilities.mm: (WebKit::toWebAPI): Return "und" where then is no language code. * Source/WebKit/WebProcess/Extensions/API/Cocoa/WebExtensionAPILocalizationCocoa.mm: (WebKit::WebExtensionAPILocalization::getPreferredSystemLanguages): (WebKit::WebExtensionAPILocalization::getSystemUILanguage): * Source/WebKit/WebProcess/Extensions/API/WebExtensionAPILocalization.h: * Source/WebKit/WebProcess/Extensions/Interfaces/WebExtensionAPILocalization.idl: * Tools/TestWebKitAPI/Tests/WebKitCocoa/WKWebExtensionAPILocalization.mm: (TestWebKitAPI::localeStringInWebExtensionFormat): Return "und". (TestWebKitAPI::TEST(WKWebExtensionAPILocalization, i18n)): (TestWebKitAPI::TEST(WKWebExtensionAPILocalization, i18nWithFallback)): (TestWebKitAPI::TEST(WKWebExtensionAPILocalization, i18nWithoutMessages)): (TestWebKitAPI::TEST(WKWebExtensionAPILocalization, i18nWithoutDefaultLocale)): Canonical link: https://commits.webkit.org/284637@main

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Co-authored-by: Addison Phillips <addisonI18N@gmail.com>

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Update proposal to include both getPreferredSystemLanguages and getSy…

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…stemUILanguage

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Proposal: i18n-system-languages #569

Proposal: i18n-system-languages #569

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		`i18n.getOSLanguage()` would synchronously return a [BCP47 language tag](https://www.w3.org/International/core/langtags/rfc3066bis.html) like `i18n.getUILanguage()` does right now.

		It would follow the following signature for [i18n.json](https://chromium.googlesource.com/chromium/src/+/refs/heads/main/extensions/common/api/i18n.json):


		Summary

		Allow to get the language of your operating system as an [BCP47 language tag](https://www.w3.org/International/core/langtags/rfc3066bis.html).


		#### Use Cases

		Having the original system language(s) is useful for language-related extensions and for extensions who want to provide translations more true to the system language. For example, to adapt to a specific sub-language, like Belgium-Dutch (nl-BE). While i18n.getUILanguage would return 'nl'.

-Having the original system language(s) is useful for language-related extensions and for extensions who want to provide translations more true to the system language. For example, to adapt to a specific sub-language, like Belgium-Dutch (nl-BE). While i18n.getUILanguage would return 'nl'.
+Extension authors might want to obtain the locale used by the user agent's host environment in order to format values (such as numbers, dates, and so forth) or do other locale-affected operations (such as list sorting) according to expectations of the user. For example, formatting the date `2024-06-15` varies between `en-US` (6/15/2024) and `en-GB` (15/6/2024), whereas `i18n.getUILanguage` might return only `en` (English).
+Extension authors might want to obtain the locale used by the user agent's host environment to better match the runtime environment's localization. For example, the operating system might be running in `ff-NG` (Fulani as used in Nigeria), but the user agent might not be localized into this language and return `en` (English) for `i18n.getUILanguage`.


		### Schema

		`i18n.getPreferredSystemLanguages()` would asynchronously return a list of [BCP47 language tag](https://www.rfc-editor.org/bcp/bcp47.html) like `i18n.getAcceptLanguages()` does right now.

		Document Metadata

		Author: carlosjeurissen

Proposal: i18n-system-languages #569

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