[whatwg] Pattern Hint
dean at edwards.name
Thu Aug 4 07:44:07 PDT 2005
Matthew Raymond wrote:
> Lachlan Hunt wrote:
>>Dean Edwards wrote:
>>>>Dean Edwards wrote:
>>>That is not enough. I wouldn't put something so complex in a tooltip. It
>>>would frighten my users.
>>What could be so complex that would frighten users when used in a title
>>attribute, yet wouldn't have the same effect when used in some kind of
>>pattern hint attribute, regardless of how it's displayed to the user?
> Wouldn't it be difficult for someone to type while viewing the
> tooltip? When I try it in Firefox, the tooltip disappears as soon as I
> start typing. Unless the user is being presented with a localized
> control that displays the output in the pattern they're accustomed to,
> the web developer is going to need to make the hint viewable continuously.
That's my thinking. I'm also concerned about pattern mismatches. If a
form is invalid the UA is supposed to feed back information to help the
user complete the form.
For most types, pattern mismatches are easy to explain to the user -
"Please enter a valid time (format HH:MM:SS).". For a complex pattern
this is more difficult. The UA can't assume that the "title" attribute
is going to help in this situation so must fall back to a generic
My concern is one of usability. We have provided a mechanism for
entering complex patterns, we should also provide a mechanism for
helping end-users enter these patterns.
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