Rails spinoffs - Aug 2005 - scriptaculous: Drag/Drop Sluggish Animation (release animation time should be proportional to remaining distance)

Thomas suggested posting these here so they don''t get
lost.

Making Scriptaculous Snappy:

*) Drag/Drop - make release cost proportional to
remaining distance

For drag/drop - change the ''release'' animation time to
be proportional to the remaining distance the dropped
item has to travel.  If a user drags the item almost
all the way to the final location, the release time
should be almost instantaneous (giving the perception
of snappiness).

Currently the ''release'' time appears fixed, so users
feel like they''re waiting unnecessairly for the
animation to slowly move the released item a tiny
distance.  This quickly gets frustrating.

*) AutoComplete - avoid blinking, just get the result
in the field ASAP

A great example of ''snappy'' autocomplete is GMail''s
address autocomplete (or even Yahoo thesedays).  The
candidate options should pop up instantly, and when a
user clicks on a selection (or hits tab) the selected
item should show up in the result field ASAP.

Any blinking or other decoration is cute the first
time, but quickly grows tedious under repeated use.


Philosophy:

The Principle of Least Distraction

Unless there''s an overwhelming benefit to
distracting/delaying the user, do the simpliest thing quickly.


		
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This has made it in :)
http://dev.rubyonrails.org/changeset/1964

Thomas

Am 01.08.2005 um 21:46 schrieb sanzbox@yahoo.com:
> Making Scriptaculous Snappy:
> *) Drag/Drop - make release cost proportional to
> remaining distance
> For drag/drop - change the ''release'' animation time to
> be proportional to the remaining distance the dropped
> item has to travel.  If a user drags the item almost
> all the way to the final location, the release time
> should be almost instantaneous (giving the perception
> of snappiness).

On 02/08/05, Thomas Fuchs <thomas@fesch.at> wrote:
> This has made it in :)
> http://dev.rubyonrails.org/changeset/1964
> > *) Drag/Drop - make release cost proportional to
> > remaining distance
I think a limit like dur = dur > 0.4 ? 0.4 : dur; should be added.

Bye,
Martin