113456 - usechromesheet attribute for all widget scrollbars

Status: NEW

(Core :: XUL, enhancement)

Description

[rvj]

The current chrome/skin philosophy assumes only one style of scrollbar is to be 
applied to all widgets. This is VERY restrictive. 

Having spent the best part of a month trying to style widget scrollbars, would 
it be possible to add a new usechromesheet attribute to all widgets which would 
point to the appropriate scrollbars.css.  (replacing chrome scrollbars.css)

Attempts to clone new tree elements and/or modify the existing tree binding to 
include a usechromesheet reference are all unsuccessful. 

Adding a  usechromeshet option provides maximum flexibility. Something like

<tree usechromesheet="chrome://xyz/scrollbars1.css"  src="..." />
<tree usechromesheet="chrome://xyz/scrollbars2.css"  src="..."/>

This should overcome the problem of overriding inherited scrollbars of the 
current chrome which was raised in one of the newsgroup posts


PS Ive almost prototyped an xbl binding for iframe which permits this. 
unfortunately Ive been unable to get usechromesheets to work with other XUL 
widgets. 

<iframe usechromesheet="chrome://xyz/scrollbars3.css"  src="..."/>

Comment 1

[rvj]

PS If this attribute is missing, then chrome://global/skin/scrollbars.css is 
assumed.

But equally it could be implied using the directory shortcut

<iframe usechromesheet="chrome://global/skin" src="..." />

Comment 2

[David Hyatt]

--> default owner.