[whatwg] Dynamic pseudo-classes on video/audio element to allow styling of controls

[Dimitri Glazkov]

On Sat, Apr 23, 2011 at 1:57 PM, Philip Jägenstedt <philipj at opera.com> wrote:
> On Sat, 23 Apr 2011 21:32:06 +0200, Dimitri Glazkov <dglazkov at chromium.org>
> wrote:
>
>> On Sat, Apr 23, 2011 at 11:37 AM, Philip Jägenstedt <philipj at opera.com>
>> wrote:
>>>
>>> On Sat, 23 Apr 2011 17:02:56 +0200, Dimitri Glazkov
>>> <dglazkov at chromium.org>
>>> wrote:
>>>
>>>> On Sat, Apr 23, 2011 at 2:57 AM, Philip Jägenstedt <philipj at opera.com>
>>>> wrote:
>>>>>
>>>>> On Sat, 23 Apr 2011 05:25:20 +0200, Dimitri Glazkov
>>>>> <dglazkov at chromium.org>
>>>>> wrote:
>>>>>
>>>>>> I wonder if it makes sense to introduce a set of pseudo-classes on the
>>>>>> video/audio elements, each reflecting a state of the media on the
>>>>>> controls (playing/paused/error/etc.)? Then, we could use just CSS to
>>>>>> style media controls (whether native or custom), and not have to
>>>>>> listen to DOM events just to tweak their appearance.
>>>>>
>>>>> With a sufficiently large set of pseudo-classes it might be possible to
>>>>> do
>>>>> *display* most of the interesting state, but how would you *change* the
>>>>> state without using scripts? Play/pause, seek, volume, etc...
>>>>
>>>> This is not the goal of using pseudo-classes: they just provide you
>>>> with a uniform way to react to changes.
>>>
>>> In other words, one would still have to rely heavily on scripts to
>>> actually
>>> implement custom controls?
>>
>> Heavily is subjective. But yep :)
>>
>>>
>>> Also, how would one style a progress bar using pseudo-classes? How about
>>> a
>>> displaying elapsed/remaining time on the form MM:SS?
>>
>> I am not in any way trying to invent a magical way to style media
>> controls entirely in CSS. Just trying to make the job of controls
>> developers easier and use CSS where it's well... useful? :)
>
> Very well, what specific set pseudo-classes do you think would be useful?

I can infer what would be useful from WebKit's media controls as a first stab?

:DG<

>
> --
> Philip Jägenstedt
> Core Developer
> Opera Software
>