2748 - Switching alternate stylesheets causes viewport shift

Status: VERIFIED FIXED

(Core :: Layout, defect, P2)

Description

[Hixie (not reading bugmail)]

Go to any page providing multiple alternate stylesheets.

Everytime you change stylesheet, the viewport shifts down by the number of
pixels that you are from the top of the document.

It seems that after switching stylesheets, the display code thinks that the
view has shifted back to the top of the document (as in a reload) and so
wants to shift it back down. Unfortunately, the view has *not* shifted to the
top of the document, and so we end up going down past where we were before the
change!

Comment 1

[troy]

The shift problem has been fixed. It was a problem in the view code.

Now what happens is that the scrollbar is reset to the top. That's a result of
how things are currently implemented internally, rather than an explicit
design choice (what we do is we remove the document element's frame and then
insert a new hierarchy--as two separate steps--rather than treat it as a single
replacement operation, which is why scrolling is reset)

Comment 2

[sujay]

setting qa_contact field.

Comment 3

[Christine Hoffman]

Using 2/11 build, verified fixed.