84416 - Paste into <textarea> outside of content produces unexpected results.

Status: VERIFIED DUPLICATE of bug 57913

(Core :: DOM: Editor, defect, P3)

Description

[Sam Varshavchik]

Here's a crude drawing of a <textarea> widget in a mozilla browser window,
X11/Gnome, Linux.  Below, 'xxxx' represents the existing content of this
textarea widget: a couple of lines of text, each line is terminated by a newline:


*----------------------------------------*
|                                        |
| xxxxx                                  |
| xxxxx            +                     |
| xxxxx                                  |
| xxxxx                                  |
|                                        |
*----------------------------------------*

Let's say I have "lllllll" in the X paste buffer.  I move the pointer to the
spot represented by "+" above, and press the middle mouse button to paste the text.

I would expect "llllll" to be appended to the end of the 2nd line of "x"s. 
Instead, "llllll" gets prepended to the beginning of the 3rd line.

Instead of:

xxxxx
xxxxxlllllll
xxxxx
xxxxx

I end up with:

xxxxx
xxxxx
lllllllxxxxx
xxxxx

It looks like the pasted content is logically inserted after the newline that
ends the second line of text, instead of just before it.  The results are rather
unexpected.  I'm trying to clearly paste some content at the end of the line,
but I instead wind up pasting it at the beginning of another line.

Comment 1

[John Morrison]

Excellent explanation!

-> Editor.

Comment 2

[rubydoo123]

I wish all of our bug reports were like this! Handing this over to jfrancis and 
cc kin 

Is there anyway we could snap to the left of the br? instead of to the right?

Comment 3

[kinmoz]

I don't think this is a rules bug, so it shouldn't be on jfrancis' plate. I 
think the editor middlemouse paste event code needs to use the same point to 
content/offset lookup that Selection uses.

I believe right now it is calling some utility method on nsIDOMNSEvent to get 
the content and offset of where it should paste.

Comment 4

[kinmoz]

This should go to anthonyd ... he has a bug #57913, which sounds similar to 
this, already on his 0.9.2 plate.

I'll let anthonyd decide if it's a dup or not.

Comment 5

[anthonyd]

DUPE! of 57913.  the only problem this is, is once again we get the grey area of 
"whats expected".  personally, if i paste after a linefeed, i expect it ot 
appear on the nextline, but some would argue that should not be possible, eh.

anyway, this is definietly "middlemouse paste is wonky dupe"

*** This bug has been marked as a duplicate of 57913 ***

Comment 6

[sujay]

verified.