[whatwg] Web forms 2, input type suggestions
mart at degeneration.co.uk
Mon Jul 16 11:12:43 PDT 2007
Lachlan Hunt wrote:
> Martin Atkins wrote:
>> Lachlan Hunt wrote:
>> These are some rather contrived examples.
> How can you possibly call them contrived, when they are real world
> examples of colour selection applications?
>> The first is asking users to select real-world (i.e. paint) colours,
>> this proposal was for screen colours in RGB format. (At least, that
>> was my understanding based on the reference to six-digit hex encoding.)
> I think it indicates a limitation with the proposed solution, and a
> perfect example of why we need to start with *problems* and *use cases*
> instead of solutions. We need to devise a solution that fits the use
> cases, not reject use cases that don't fit the solution.
Applications for exploring colour spaces already have a satisfactory
solution, as in your examples. Since their focus is on colour selection
they implement a more elaborate UI that fits their purpose exactly.
Likewise, applications such as Google Calendar implement their own UI
for exploring the calendar rather than relying on the UI provided by
However, applications whose focus is not on dates or colours but which
still need to accept such values as inputs benefit from commodity
controls; the specifics of how these controls are implemented matter
little as long as they produce results in a suitable format for
processing by the application.
A web search for "DHTML Colour Picker" (US or UK spelling) turns up
hundreds of distinct implementations of an RGB colour picker widget,
which indicates to me that there is a clear need for such a thing.
However, I cannot find any general-purpose DHTML colour widgets for
selecting paint colours that could be classed as reusable components, so
I'm left to assume that this is a very speciality need which needs to be
custom-developed in each case.
In short, I am not rejecting use cases that don't fit the solution, I'm
rejecting use cases that do not fit the scope of the problem as I see
it. You may percieve the problem differently, of course.
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