unity-design team mailing list archive

[Thorsten Wilms <t_w_@xxxxxxxxxx>]

On Fri, 2010-05-21 at 13:53 +0200, Joern Konopka wrote:

> -Clicking opens the file as usual
> -Click and Hold will select the File after a Timeout of 250 ms
> -Double-Click! Since its "disabled" in Single-Click Mode it could be
> used to select files too, that would make more sense than having it
> open files twice (which makes a really bad impression with the User)

Be careful, click usually means button down and up without movement
(exceeding some threshold) in between.

To allow dragging, Open can't happen before button-up.

With single-click-to-activate, Open has to happen on the first button-up
without prior dragging, so you can't double-click without triggering
that. Except if you add a delay before you interpret the gesture. That
would likely make the interface feel sluggish and things are complicated
enough with just separate treatment of button up and down and drag
threshold.


-- 
Thorsten Wilms

thorwil's design for free software:
http://thorwil.wordpress.com/