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

From: Xidorn Quan <quanxunzhen@gmail.com>
Date: Thu, 25 Feb 2016 10:39:47 +0800
Message-ID: <CAMdq6996S_T2ryKqgbLoKJFn7ydQorbpMbagJZnh6Rhr4UmJ1w@mail.gmail.com>
To: fantasai <fantasai.lists@inkedblade.net>
Cc: www-style list <www-style@w3.org>
On Thu, Feb 25, 2016 at 10:30 AM, fantasai
<fantasai.lists@inkedblade.net> wrote:
> On 02/24/2016 08:30 PM, Xidorn Quan wrote:
>>
>> 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.
>
> This makes sense to me. What do you think is weird, other than the
> name of the 'list-item' keyword?

And the name of list-style properties. Well, same thing...

So okay, let's ask the HTML spec to make <summary> use list-item.

- Xidorn
Received on Thursday, 25 February 2016 02:40:56 UTC

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