21588 - [Perf] paste text into Composer or html mail editor is extremely slow

Status: VERIFIED DUPLICATE of bug 19273

(Core :: DOM: Editor, defect, P1)

Description

[pmock]

* This bug was found while testing bug 21360

Build Date & Platform Bug Found:
 Linux commercial seamonkey build 1999-12-12-08-m12 installed on P200 RedHat 6.1
 Win32 commercial seamonkey build 1999-12-12-09-m12 installed on P166 Win98
 MacOS commercial seamonkey build 1999-12-11-08-m12 installed on G3/400 OS 8.6

Overview Description:
 In the page composer and html mail editor, if you paste a large body of text,
it takes an extremely long time (minutes) for the operation to be completed.
For example, On Windows and Linux, it takes over 4 minutes to finish the paste
operation and on Mac, it took 1-2 minutes.

The text that I was pasting was 26K in size. I observed even pasting a 6K of
text, it took at least a couple of minutes.

I will attached my 26K test file.

Steps to Reproduce:
1) Open a page composer window or html mail editor
2) Open my sample text document (26k)
3) Copy and paste into the page composer
   On Linux, I performed an alt+v. On Win32, I performed an control+v, On Mac, I
performed a command+v
4) Note the time that you started the paste operation.
   It will take a while.

Actual Results:
 After starting the paste operation, seamonkey looks like it's locked up.  The
system is not frozen but all my seamonkey windows does not respond.  When I try
to move the seamonkey window, it does not repaint the window if I move it behind
another window.

Expected Results:
 It should not take minutes to pastes a larege body of text.  If the paste
process takes more time, it should put some sort of visual indicator such as a
progress dialog or animated cursor to show the user that something is happening.

Additional Builds and Platforms Tested On:
 The Mac build 12/11 was the latest available on server.

Additional Information:
 This problem does not occur in the plain text mail editor.  The paste operation
took 1-2 seconds to complete.

Comment 1

[pmock]

Attachment: 26K text file using in my test

Comment 2

[pmock]

Adding [e-mail] to cc: list

Comment 3

[Mike Pinkerton (not reading bugmail)]

this is probably a dupe of 12541, which i tracked down as taking a long time in
the parser before i stopped. It's probably all the malloc's for the content model
that needs generating.

I'll let you folks mark this a dupe if you want.

Comment 4

[rubydoo123]

assigning to harishd -- Harish I'll let you decide if this is a dup if 12541

Comment 5

[Eli Goldberg]

Copy/Paste bug; QA Assigning to self.

Comment 6

[rickg]

Setting milestone.

Comment 7

[pmock]

Updating steps to reproduce problem:
Steps to Reproduce:
1) In Notepad or wordpad, open my sample text document (26k)
2) Open a page composer window or html mail editor
3) Copy and paste into the page composer
   On Linux, I performed an alt+v. On Win32, I performed an control+v, On Mac, I
performed a command+v
4) Note the time that you started the paste operation.
   It will take a while.

Comment 8

[Joe Francis]

this is a dup of 19273


*** This bug has been marked as a duplicate of 19273 ***

Comment 9

[pmock]

Verified as a duplicate of bug 19273