[whatwg] a few comments to Webforms 2.0 Call For Comments

[Matthew Raymond]

Olav Junker Kjær wrote:
>>>If a range is implemented with a slider control, what happens if no 
>>>initial value is specified? 
>>
>>   Perhaps it should either be zero or the closest value to zero within 
>>the range.
> 
> Sensible, but wouldnt it be illegal for the control to automatically chose
> a value when none is supplied in the html?

    Sliders have to have a handle, and that handle has to be somewhere 
on the slider. Therefore, it has to have a value within the range. The 
default value for anything is usually zero. (In the case of sliders, it 
could also be the middle value between the |max| and |min| values.)

    You could argue it's illegal (although I have no idea why it would 
be), but that's pointless, since a control like a slider has to have a 
default value. Now that I think about it, this could be used as an 
argument why sliders shouldn't be used for <input type="range">, 
although I don't really by that argument myself.

> Sorry, I should have been more clear. The spec clearly allows "maxlength"
> on uri and email (although with a warning like yours), and "required" on
> radiobuttons and checkboxes. I was just pointing out some small errors in
> the attribute table in appendix B. 

    Oops!