44168 - Scrollbar Thumb does not respond to CSS :active

Status: RESOLVED FIXED

(Core :: XUL, defect, P3)

Description

[Nikhil Bhatla (gone)]

In a continuing effort to make a Macintosh Classic Skin:

On most platforms, mouseDown on a scrollbar thumb provides the user 
with visual feedback in the form of highlighting the thumb.  Using CSS in 
the scrollbars.css file, I tried to emulate this highliting effect by changing 
the thumb color during the "active" state:

thumb {
  behavior: url("chrome://global/content/xulBindings.xml#thumb");
  user-focus: ignore;
  user-select: none;
  background-color: #9999FF;
  border-right: 1px solid rgb(40%,40%,80%);      /* #6666CC */
  border-bottom: 1px solid rgb(40%,40%,80%);      /* #6666CC */
  border-top: 1px solid rgb(80%,80%,100%);         /* #CCCCFF */
  border-left: 1px solid rgb(80%,80%,100%);         /* #CCCCFF */
  list-style-image: url("chrome://global/skin/scroll-thumb-horiz.gif");
}

 thumb:active {
	 background-color: #6666CC;
 }

However, this style does not produce any effect.  Oddly, though, once in a 
very long while you will see the highlight effect for half a second or so, and 
then it will disappear.

This bug should be fixed for nsbeta3 because the hilite is a polish effect 
necessary for a Classic skin to fit in the OS's GUI.  The bug is jarring and 
destracting for the user, and makes Netscape's interface look cheap and 
hacked together.

Comment 1

[Mike Pinkerton (not reading bugmail)]

pushing to evaughan

Comment 2

[Asa Dotzler [:asa]]

setting bug status to New

Comment 3

[Nikhil Bhatla (gone)]

Just realized that this bug only crops up when viewing "special" (non-html 
only) sidebars: Bookmarks, What's related, and the top and left panels in 
Mail, for example.  In most other sidebars and regular html panels, the 
thumb gets the :active message just fine.  Hope this helps.

Comment 4

[Nikhil Bhatla (gone)]

This bug might only crop up in sidebar panels that have embedded trees.  
Maybe this bug should go to hyatt?

Comment 5

[Nikhil Bhatla (gone)]

reassigning to hyatt

Comment 6

[David Hyatt]

fixed by 53091 fix.