Re: Intent to prototype and ship: :user-valid and :user-invalid pseudo-classes.

2021-02-24 Thread Anne van Kesteren
On Tue, Feb 23, 2021 at 9:49 PM fantasai  wrote:
> We wanted it to be flexible enough that UAs could experiment with behavior and
> improve usability over time, so we locked down the one period in time that we
> felt was not up for debate (between attempted submission and next interaction
> with the invalid input) and left the rest open to interpretation.

I played with this some more and I think that might be a tad too
vague. E.g., if you cancel an invalid event Firefox will no longer
show UI messages to the user about filling in a form control, but
:-moz-ui-invalid still matches (see
https://software.hixie.ch/utilities/js/live-dom-viewer/saved/8957 for
a demo). And flexibility here is tough as web developers likely want
these to be fully deterministic to be able to build consistent
experiences.
___
dev-platform mailing list
dev-platform@lists.mozilla.org
https://lists.mozilla.org/listinfo/dev-platform


Re: Intent to prototype and ship: :user-valid and :user-invalid pseudo-classes.

2021-02-23 Thread Emilio Cobos Álvarez

On 2/23/21 09:24, Anne van Kesteren wrote:

On Mon, Feb 22, 2021 at 2:59 PM Emilio Cobos Álvarez  wrote:

Let me know if you have any objections about this change, but I think
having a prefixed pseudo-class for this is not a great state of affairs.


This seems reasonable, but I think we should define the processing
model for them in the HTML Standard as well, to ensure everyone can
align on when exactly these are supposed to match.


The original spec text for :user-invalid was pretty flexible in terms of 
when it can match. My understanding is that that was kind of intentional 
(cc'ing fantasai who was part of those discussions).


But yeah I tend to agree we probably want to define more precisely when 
these must match and maybe even when they may match.


 -- Emilio
___
dev-platform mailing list
dev-platform@lists.mozilla.org
https://lists.mozilla.org/listinfo/dev-platform


Re: Intent to prototype and ship: :user-valid and :user-invalid pseudo-classes.

2021-02-23 Thread Emilio Cobos Álvarez

On 2/23/21 11:52, Xidorn Quan wrote:

Please head up in CSS working group about this, and probably ask for a 
resolution on no objection for us to ship it, as this spec is still in draft.


Hmm, is it? https://www.w3.org/TR/selectors-4/#user-pseudos has had 
:user-invalid for quite a while, and we and other engines ship a lot of 
stuff in selectors-4.


(I just added spec text for :user-valid, but it was noted in the 
non-draft spec that there was a resolution to add it as well).


Anyhow not particularly trying to avoid this, just trying to clarify the 
situation. A heads-up probably wouldn't hurt anyways, and per Anne's 
comments we might want some html spec text as well.


 -- Emilio
___
dev-platform mailing list
dev-platform@lists.mozilla.org
https://lists.mozilla.org/listinfo/dev-platform


Re: Intent to prototype and ship: :user-valid and :user-invalid pseudo-classes.

2021-02-23 Thread Xidorn Quan
On Tue, Feb 23, 2021, at 12:59 AM, Emilio Cobos Álvarez wrote:
> Standard: https://drafts.csswg.org/selectors/#user-pseudos
> 
> Other browsers: No signal from other vendors, though we've shipped this 
> functionality for quite a while and the CSS working group considers it 
> useful, see discussions:
> 
>   * https://lists.w3.org/Archives/Public/www-style/2012Aug/0749.html
>   * https://lists.w3.org/Archives/Public/www-style/2015Sep/0111.html
> 
> I'm hoping that unprefixing it in Gecko will serve as a bit of a nag to 
> other browsers.

Please head up in CSS working group about this, and probably ask for a 
resolution on no objection for us to ship it, as this spec is still in draft.

- Xidorn
___
dev-platform mailing list
dev-platform@lists.mozilla.org
https://lists.mozilla.org/listinfo/dev-platform


Re: Intent to prototype and ship: :user-valid and :user-invalid pseudo-classes.

2021-02-23 Thread Anne van Kesteren
On Mon, Feb 22, 2021 at 2:59 PM Emilio Cobos Álvarez  wrote:
> Let me know if you have any objections about this change, but I think
> having a prefixed pseudo-class for this is not a great state of affairs.

This seems reasonable, but I think we should define the processing
model for them in the HTML Standard as well, to ensure everyone can
align on when exactly these are supposed to match.
___
dev-platform mailing list
dev-platform@lists.mozilla.org
https://lists.mozilla.org/listinfo/dev-platform


Intent to prototype and ship: :user-valid and :user-invalid pseudo-classes.

2021-02-22 Thread Emilio Cobos Álvarez

Hi,

In bug 1694141 I plan to unprefix :-moz-ui-valid and :-moz-ui-invalid 
pseudo-classes. These are useful pseudo-classes to determine when to 
show feedback to the user about a form control being invalid.


Standard: https://drafts.csswg.org/selectors/#user-pseudos

Platform coverage: all

Preference: None

Devtools bug: N/A

Other browsers: No signal from other vendors, though we've shipped this 
functionality for quite a while and the CSS working group considers it 
useful, see discussions:


 * https://lists.w3.org/Archives/Public/www-style/2012Aug/0749.html
 * https://lists.w3.org/Archives/Public/www-style/2015Sep/0111.html

I'm hoping that unprefixing it in Gecko will serve as a bit of a nag to 
other browsers.


Chromium bug: https://bugs.chromium.org/p/chromium/issues/detail?id=1156069

WebKit bug: https://bugs.webkit.org/show_bug.cgi?id=67

web-platform-tests: There's a test for :user-invalid in css/selectors. I 
plan to add a test for :user-valid. There's 
https://github.com/web-platform-tests/wpt/issues/9346 on file for adding 
WPTs that test the user-interaction part of this.


Let me know if you have any objections about this change, but I think 
having a prefixed pseudo-class for this is not a great state of affairs.


 -- Emilio
___
dev-platform mailing list
dev-platform@lists.mozilla.org
https://lists.mozilla.org/listinfo/dev-platform