22124 - text inputs repaint badly when scrolling

Status: VERIFIED DUPLICATE of bug 18353

(Core :: Layout: Form Controls, defect, P3)

Description

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

DESCRIPTION:  Single line text inputs have started (again, I think) repainting
badly when scrolling horizontally.

STEPS TO REPRODUCE:
 * load attached test case
 * click in text input
 * hit "End" key
 * type

ACTUAL RESULTS:
 * its impossible to read the text that one types, because parts of the letters
shift to the left and other parts don't

EXPECTED RESULTS:
 * the whole thing should scroll smoothly to the left as one adds text to the
right end

DOES NOT WORK CORRECTLY ON:
 * Linux, mozilla, 1999-12-18-08-M13

Comment 1

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Attachment: testcase described in bug

Comment 2

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

The above attachment was my first sucessful use of file upload in Mozilla.
Hey... I think this *is* dogfood :-)

Comment 3

[karnaze (gone)]

Reassiging to Steve.

Comment 4

[buster]

assiging to kin, cc pavlov and evaughan.  Linux-only updating problem, possibly
related to scrolling.

Comment 5

[rubydoo123]

setting to m13 for Kin to debug

Comment 6

[kinmoz]

Accepting bug.

Comment 7

[kinmoz]

Hmmm ... this works fine for me in my 12/21/1999 debug build. This sounds like a
dup of bug #18353, where scrolling messes up when Native GTK Scrollbars are
active. The problem goes away if you have Gfx scrollbars enabled.

[e-mail], could you please check to see if you have Gfx scrollbars
enabled? You can enable them by selecting Edit->Preferences from the menus and
then clicking on Debug in the list on the left side of the preferences dialog.

Let me know what you find, I'm trying to nail all repaint/scrolling problems for
text widgets in M13. Thanks!

Comment 8

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

I do not have GFX scrollbars enabled because of bug 20185.  Until that bug is
fixed they are not usable on Linux.  That is really the only bug blocking use
of the browser for DOGFOOD for me, so I disabled GFX scrollbars.

Comment 9

[kinmoz]

I'm going to mark this bug as a dup of bug #18353 which we closed because we
want everyone to switch to Gfx scrollbars.

If you really need to use native GTK scrollbars, then you'll need to bug
[e-mail] to fix bug #13407.


*** This bug has been marked as a duplicate of 18353 ***

Comment 10

[Sebastian Späth]

VERIFY duplicate