[whatwg] date/time and precision changes

David Hyatt hyatt at apple.com
Wed Jun 16 12:52:08 PDT 2004

Ok, missed the "any" value in the spec.  That solves my problem.  I do 
think you should state that the value property for sliders must be 
locked to a step multiple.


On Jun 16, 2004, at 11:39 AM, David Hyatt wrote:

> Also a float slider is simply continuous... it effectively has no step 
> value... I don't see how to specify a continuous float slider without 
> having to say something hacky like step="0.001".  If you must have a 
> step attribute, I think you should have a special value, continuous, 
> to denote that the entire range of values is allowed.
> This is another reason why I think the precision value was necessary.  
> Both a float slider and int slider should by default be considered 
> continuous, i.e.to support all possible values.  While a step 
> attribute is definitely useful, I don't think it's intuitive to use it 
> to set the data type of the slider control.  Logically the default 
> value of step should be "continuous" IMO and precision="integer|float" 
> should be supported to determine what "continuous" means.
> Adding numeric values for step also introduces an ambiguity of how the 
> slider should behave when dragging.  Does it jump in increments or 
> does it smoothly slide and do rounding to the nearest step increment?  
> This is perhaps something for a CSS property to control.
> dave
> On Jun 16, 2004, at 11:05 AM, Dave Hyatt wrote:
>> I strongly disagree with dropping the precision attribute for <input 
>> type=range>.  I at least like the ability to distinguish between 
>> float and integer.
>> How does a user tell the form control to submit as either a float or 
>> an integer now?  I already implemented precision="float" to 
>> accomplish this.  The precision as an integer ensured that even if 
>> the slider was handing out float values that they would be 
>> auto-converted when accessing/submitting/setting the value attribute. 
>>  With your changes this ability seems to have been lost.
>> dave
>> On Jun 16, 2004, at 7:40 AM, Ian Hickson wrote:
>>> Based on all your feedback (thanks everyone!) I've reworked the 
>>> following
>>> types and attributes:
>>>    types: datetime, date, time, expdate, week
>>>    attributes: precision, min, max
>>> Let me know if you are not happy with the new text, and if you have 
>>> any
>>> more suggestions.
>>>    http://whatwg.org/specs/web-forms/current-work/#extensions0
>>> Apologies to anyone who'd already implemented this stuff...
>>> -- 
>>> Ian Hickson               U+1047E                )\._.,--....,'``.   
>>>  fL
>>> http://ln.hixie.ch/       U+263A                /,   _.. \   _\  
>>> ;`._ ,.
>>> Things that are impossible just take longer.   
>>> `._.-(,_..'--(,_..'`-.;.'

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