112475 - Textarea and scrollbar weirdness: invisible text, scrollbar stays when it shouldn't

Status: VERIFIED DUPLICATE of bug 74383

(Core :: DOM: Editor, defect)

Description

[Brent]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:0.9.6) Gecko/20011120
BuildID:    2001112009

All kinds of textarea problems occur when enough text is added to make the
scrollbar on the right side appear.  The scroll bar does not go away if all the
text is selected and deleted.  If a new line is added in the middle, cannot
scroll above the new line.  Text turns invisible when selected.  Related: bug
82151, bug 98572.

Reproducible: Always
Steps to Reproduce:
1. Select all the text in the 2nd paragraph of the Bugzilla Helper page, which
starts with "When reporting a bug about..." and ends with "...quirks mode."
2. Paste the text into one of the bug report windows such as "Actual Results"
3. A scrollbar should appear on the right side
 of the textarea.
The cursor is at the end of the text.
=======================
4. Select all the text by holding down Shift and hitting Up Arrow 8 times. 
(Should be about 8 times-- depends whether an extra line was added like in bug
98572)
5. Hit Delete.  Scrollbar should go away but does not.  Caret is not in correct
place.  Cursor may vanish if Left Arrow hit.
--------------------------
4. Hit Home, then Up Arrow 2 times.  Cursor is positioned at start of line that
says "the default vertical alignment...".
5. Hit Enter to add a line.  "the default vertical..." line will jump to the top
of the visible textarea and the scroll bar indicates window is positioned at the
beginning of the text.  Up Arrow cannot move caret above "the default
vertical...", or moves off screen
6. Hit Down Arrow until caret stops.  Caret should be at end of text but is
instead between "mode" and the last period.
7. Hold down on Shift and hit Up Arrow.  Last line of text goes invisible.

Comment 1

[Boris Zbarsky [:bzbarsky]]

Please retest with a nightly build.  At least two major textarea fixes have
landed since 0.9.6

Comment 2

[kinmoz]

Yup this sounds exactly like bug 74383. Brent, please reopen if this happens in
a more recent trunk build.

*** This bug has been marked as a duplicate of 74383 ***

Comment 3

[sujay]

verified.

Comment 4

[Brent]

2 fixes since 0.9.6?  That would explain why I couldn't reproduce this on the
nightly of 28 Nov for the MacIntosh OS X.  Tried with build 2001112803 on NT and 
problems are fixed.
  
New bug report for this one?  Occasionally could not add a line with Enter:
1. Paste enough text into textarea for scrollbar to appear.
2. Hit Home, then hit Up Arrow a few times (2 sometimes did it and sometimes had
to move up enough to scroll the window a line) then hit Enter.  Nothing happens.
A line should have been added.

Can't always get this to happen.

Comment 5

[kinmoz]

Brent - The problem you just mentioned above this comment still sounds like bug
74383. If you can still reproduce it in a recent TRUNK build, after 11/21/01, I
would file a new bug.

If you do file a bug, it would be helpful to see the actual text you were pasting.