On Tue, Apr 19, 2016 at 8:41 AM, Ting-Yu Lin <t...@mozilla.com> wrote:
> To summarize the feedback so far, I'd still like to ship <details> and
> <summary> without |summary::marker| because
>
> 1) No other browsers support summary::marker yet.
This is a reason to ship *with* it IMO, per showing standards
leadership, something Firefox is known for, leading the open (rather
than prefixed) web and all that.
> 2) From the webcompat point of view, even if we support summary::marker,
> our usage to customize the triangle will still be different from the
> |summary::-webkit-details-marker| usage on Blink/Webkit. So implementing
> ::marker does not solve the webcompat issue.
This is a normal transition phase in the path towards developers using
standards-based properties (border-radius etc. history has plenty of
examples). Not a reason not to ship.
> 3) The marker (triangle) is still stylable without |summary::marker|.
> Author could change the triangle via |summary { list-style-type: xxx}| or
> use pseudo element |summary::-moz-list-bullet| to add more css rules.
It's good that we have a prefixed alternative (that does not depend on
someone else's prefix).
The key question to consider about delaying |summary::marker| support
is whether or not we (e.g. you) think the spec for ::marker is
"stable" and "good" enough to ship.
That's a judgment call, and I'd like to know your opinion of that.
> Ting-Yu
Thanks,
Tantek
> On Thu, Apr 14, 2016 at 3:53 PM, Ting-Yu Lin <t...@mozilla.com> wrote:
>
>> As of Firefox 48 I intent to ship HTML5 <details> and <summary> tags on
>> all platforms. The features has been developed behind pref
>> "dom.details_element.enabled", and had been enabled on non-release build in
>> bug
>> 1241750 <https://bugzilla.mozilla.org/show_bug.cgi?id=1241750>
>>
>> Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=ship-details-summary
>> Link to standard:
>> https://html.spec.whatwg.org/multipage/forms.html#the-details-element
>>
>> This feature was previously discussed in this "intent to implement" thread:
>>
>> https://groups.google.com/d/msg/mozilla.dev.platform/b0UMDIasfq8/tW49QLgCBwAJ
>>
>> One major concern in the "intent to implement" discussion is the ability
>> to style the summary disclosure triangle. Currently summary has default
>> style "display: list-item", so we can style the triangle via the pseudo
>> element |summary::-moz-list-bullet| like |li::-moz-list-bullet|.
>>
>> The open question is that do we want to make it prefect to implement
>> |summary::marker| (Bug 1221416
>> <https://bugzilla.mozilla.org/show_bug.cgi?id=1221416>) before shipping,
>> which requires more effort to implement a complete support for ::marker
>> pseudo element (Bug 205202
>> <https://bugzilla.mozilla.org/show_bug.cgi?id=205202>). If not, we can
>> ship it in Firefox 48. Otherwise this feature might skip one or two
>> releases.
>>
>> Please give me some feedbacks. Thanks.
>>
>> Ting-Yu Lin (:TYLin)
>>
>>
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