55233 - Selection in scrolled textareas has mouse coordinate problems

Status: RESOLVED DUPLICATE of bug 83650

(Core :: Layout, defect, P3)

Description

[Simon Fraser [no longer active]]

Go to the URL above, and type enough text into the field that it starts
scrolling. Scroll to the bottom of the field, and try clicking in the last line
to place your caret there. The caret appears several lines up, the distance up
being affected by the scroll offset.

Comment 1

[Simon Fraser [no longer active]]

This problem is more general, and affects all platforms. You can see it in 
composer's HTML source panel. I'll attach a sample page shortly.

To repro:
1. Load the attachment in composer
2. Go to composers HTML source view
3. Scroll to the bottom of the text
4. Find the <h2>macCVS</h2> line
5. Click after the <ul> (say 1/2" to the right) on the following line, and slowly 
drag down.
6. Note that as you drag down, the selection suddenly pops all the way up to near 
the top of the screen (for me, it hits the "Corporate" H2 higher up)
7. Drag down until you are to the right of the </ul> after the two <li> lines
8. Now, with the mouse still down, drag left and right there. Note that the start 
of the selection is moving back and forth near the top of the window.

There is some scroll offset coordinate bug here in mouse tracking.

Comment 2

[Simon Fraser [no longer active]]

Attachment: Page for testing selection problem

Comment 3

[Simon Fraser [no longer active]]

Not going to get to this by RTM. Should fix for mozilla though.

Comment 4

[Hixie (not reading bugmail)]

Upon managerial request, adding the "testcase" keyword to 84 open layout bugs that
do not have the "testcase" keyword and yet have an attachement with the word
"test" in the description field. Apologies for any mistakes.

Comment 5

[Simon Fraser [no longer active]]

Un-future and give to Tony. I've seen several bugs on this now.

Comment 6

[anthonyd]

un-futuring, setting milestoone, and giving to myself.

anthonyd

adding mjudge to the cc list

Comment 7

[rubydoo123]

adding correctness and nsbeta1

Comment 8

[anthonyd]

*** Bug 63205 has been marked as a duplicate of this bug. ***

Comment 9

[rubydoo123]

moving to mozilla1.0, removing nsbeta keyword

Comment 10

[anthonyd]

need to re look at this after harish lands his big textarea changes

Comment 11

[rubydoo123]

--> mjudge

Comment 12

[Asa Dotzler [:asa]]

Bugs targeted at mozilla1.0 without the mozilla1.0 keyword moved to mozilla1.0.1 
(you can query for this string to delete spam or retrieve the list of bugs I've 
moved)

Comment 13

[Simon Fraser [no longer active]]

Kin has the fix for this.

Comment 14

[kinmoz]

*** This bug has been marked as a duplicate of 83650 ***