Subj : exec/sbbslist.js
To   : Nightfox
From : Digital Man
Date : Sat Mar 28 2020 07:02 pm

  Re: exec/sbbslist.js
  By: Nightfox to Digital Man on Sat Mar 28 2020 06:56 pm

 >   Re: exec/sbbslist.js
 >   By: Digital Man to nightfox on Sat Mar 28 2020 05:29 pm
 >
 >  DM> Scrolling is still not behaving as it did before you started modifying
 >  DM> it. Now, when you arrow up while at the top of the a page-full or arrow
 >  DM> down while at the bottom fo a page-full, rather than scroll by one (and
 >  DM> leave the selection bar at the top or bottom), the list is scrolled by
 >  DM> a full page full (as if page up or page down was struck) and the
 >  DM> selection bar moves to the opposite side of the screen (i.e if it was
 >  DM> at the top, it moves to the bottom, or vice versa).
 >
 > That was intentional, for screen refresh optimizations.  Rather than re-draw
 > the whole list every time you scroll one item, I thought it would be more
 > efficient to draw a whole page once, and then when you move up or down, to
 > only re-draw the lightbar for 2 items each time (until you go to the next
 > page).  Do you think this behavior is undesirable?

It's surprising behavior (to me) for the arrow keys and I don't care for surpringing behavior. If the user wants to move a page at a time, they use the page up/down keys. If they're using the arrow keys, they're expecting to move a single item at a time. The previous/expected behavior is consistent with most applications, even web browsers. I can't recall any other application that behaves in the manner that you've changed sbbslist to behave.

                                            digital man

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