339516 - sharpdevelop.net - Message editor on sharpdevelop forums generates 100% cpu load (hang)

Status: RESOLVED FIXED

(Tech Evangelism Graveyard :: English US, defect)

Description

[Ger Teunis]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20060527 Minefield/3.0a1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20060527 Minefield/3.0a1

The message editor uses intensive javascript.
When Javascript is disabled the cpu-load isn't generated.

Reproducible: Always

Steps to Reproduce:
1. Browse to http://community.sharpdevelop.net/forums/23/ShowForum.aspx
2. Create a new post (using the half visible "add post" on top of topics)


Actual Results:  
Browser hangs when Javascript is enabled.

Expected Results:  
Browser should not hang.

The script seems to hang on the line
"this.DomElement.style.display='block';"

in ComponentArt_PageView.prototype.Show=function(qzma) in file
http://community.sharpdevelop.net/Utility/componentart_webui_client/2006_1_1109/A573A488.js

Comment 1

[Martijn Wargers (dead)]

This regressed between 2006-03-07 and 2006-03-08, probably a regression from bug 234455, which made load events bubble.

I see a FTB_AddEvent(window,'load' in ShowForum.aspx.
function FTB_AddEvent in FTB-Utility.js does obj.addEventListener(evType, fn, true);
It should do obj.addEventListener(evType, fn, false);
I've tested this and that makes the difference.

Comment 2

[Olli Pettay [:smaug][[e-mail]]]

Reporter, do you still see this bug? Bug 335251 has been fixed and it should have
helped in this case too.

Comment 3

[Ger Teunis]

Work perfectly now.
No more high CPU usage when opening that post editor.