136564 - Text Zoom loses scroll position

Status: VERIFIED DUPLICATE of bug 64926

(Core :: Layout, defect, P3)

Description

[Mark Williamson]

Ok; bit of a subjective one this, but here goes.

When viewing a *long* page of text/html, zooming in, say two steps (Cntl++) will
cause you to lose your position down the page. One may have to scroll two or
three pages to refind your position in the text.

HOWTO REPRODUCE / TESTCASE
==========================

1) Go to http://lartc.org/HOWTO//cvs/2.4routing/output/2.4routing-15.html ( it's
a long page).
2) Scroll half way down the page.
3) Highligh a line of text (this is just to mark where you are).
4) Zoom in a few times (Cntl++.
5) Scroll up/down to the line that you highlighted.
6) Notice how far you have to scroll to get back to your original position in
the text.

EXPECTED RESULT
===============
The (highlighed line / line you are viewing) should remain midway down the screen.

Comment 1

[Matthias Versen [:Matti]]

-> Layout

Comment 2

[Christine Hoffman]

Changing QA contact

Comment 3

[Moied]

Using build ID 20020416 on winxp(pro)
http://lartc.org/HOWTO//cvs/2.4routing/output/2.4routing-15.html is not a valid
URL, tried another long page at http://bpdg.blogs.eff.org/
zooming by Cntl++ does resonable zooming

Comment 4

[Jesse Ruderman]

*** Bug 132834 has been marked as a duplicate of this bug. ***

Comment 5

[Jesse Ruderman]

As bz pointed out in the dup, this might depend on bug 60307, "Images loading
above top of window can cause scrolling up".

See also bug 139832 (for resizing windows), which suggests an approximate method
of getting the right scroll position that involves keeping the scroll percent
rather than the number of pixels.

Comment 6

[Marcus Campbell]

*** Bug 163025 has been marked as a duplicate of this bug. ***

Comment 7

[Eric Hanchrow]

This seems like a duplicate of Bug 64926

Comment 8

[Marcus Campbell]

*** This bug has been marked as a duplicate of 64926 ***

Comment 9

[Wesha]

v.