Re: [css-pseudo] Need a way to styling the disclosure triangle of the <details> (or <summary>) element

On Thu, Feb 25, 2016 at 9:25 AM, Tab Atkins Jr. <jackalmage@gmail.com> wrote:
> On Wed, Feb 24, 2016 at 4:52 PM, Xidorn Quan <quanxunzhen@gmail.com> wrote:
>> On Thu, Feb 25, 2016 at 7:56 AM, Tab Atkins Jr. <jackalmage@gmail.com> wrote:
>>> On Mon, Feb 22, 2016 at 12:49 AM, Ting-Yu Lin <tlin@mozilla.com> wrote:
>>>> This question was raised in bug 1221416 when implementing <details> and
>>>> <summary> elements in Firefox.
>>>>
>>>> We might need a way to support styling for the disclosure triangle of the
>>>> <details> (or <summary>) element. Currently, webkit supports a non-standard
>>>> pseudo-class summary::-webkit-details-marker as this article said.
>>>>
>>>> Xidorn proposed here that we could add ::marker support for <summary>
>>>> element in pseudo-element spec.
>>>>
>>>> Any ideas?
>>>
>>> I'm happy with Xidorn's idea, and it's already supported by the
>>> Counter Styles spec, which has list-style values specifically defined
>>> for this.
>>
>> Yes, but the question is, do we want to make <summary> a list-item? I
>> don't think it makes sense. Using list-style on <summary> looks weird
>> to me. In the current spec, ::marker is only generated for list-item
>> (and inline-list-item). If we want to extend the range ::marker is
>> applied to, we would probably need a new concept for it?
>
> The concept is "list-item".  It's an unfortunate legacy name, but that
> happens sometimes.

So you are suggesting we make <summary> (or <details>?) to have
"display: list-item" by default, and applies list-style and ::marker
on it, right? I'm fine with this, though it looks a bit weird, but
acceptable and seems to be practical for implementing.

- Xidorn

Received on Thursday, 25 February 2016 01:31:11 UTC