Buggy scrollbar in source view IE8

[Kingsquare]

This is the weirdest bug i've seen in a while:

In an editor instance in Internet Explorer 8, with compatibility mode disabled, when looking at 'code view' and with some :hover declaration declaren anyware in the page (that contains the editor), the scrollbar of the editor starts 'blinking' and scrolling up when hovering over and out the textarea.

The :hover declaration is the containing page could be something like

<style type="text/css">
   somethingthatisnotA:hover { color: #ABC; }
</style>

and that declaration has nothing to do with the editor at all! To reproduce this problem, please try the following

• Fire up IE8 and disable Compatibility mode
• Visit ​http://reggino.kingsquare.nl/bugreport/ckeditor/test.html
• click 'Code' and scroll down
• Mouse your mouse over and out the textarea. (there are more events that trigger this behaviour!)
• Check your scrollbar...

[Frederico Caldeira Knabben]

IE is always so lovable... that's really weird!

I'm targeting to the 3.2 for investigation. I hope you've been able to workaround it for your needs.

[Garry Yao]

Unable to reproduce on trunk.

[Kingsquare]

The testpage set up @ ​http://reggino.kingsquare.nl/bugreport/ckeditor/test.html contains last nightly build / current trunk version(rev 4658) and can be used to reproduce the problem.

[Frederico Caldeira Knabben]

I was definitely able to reproduce the problem by using the provided test page URL.

[Frederico Caldeira Knabben]

#4811 has been marked as DUP. A sample file and instructions are available there.

[Iuliu Sandu]

I experienced the same problem in version 3.1 of ckeditor. I added the following code at line 72 (just above the line that says: styles.height = holderElement.$.clientHeight + 'px';):

styles.width = holderElement.$.clientWidth + 'px';

Of course this has the knock-on effect of putting a fixed width on the textarea but it does the job. A bit more about this IE8 bug here ​http://grantovich.net/posts/2009/06/that-weird-ie8-textarea-bug/

[Garry Yao]

Proposing a workaround based on iuliusandu's idea.

[Alfonso Martínez de Lizarrondo]

This bug existed previously on that part of code but it affected only !CKEDITOR.env.ie8Compat, the listener for afterCommandExec isn't removed in the unload so collapsing the toolbar afterwards generates an error.

If the window is resized horizontally (with the editor in source mode and in its default state: not maximized, not resized), then the textarea doesn't resize. It should be possible to add a listener to the resize of the window to catch this situation (and as in the previous case, it must be removed at unload)

[Garry Yao]

Providing a patch targeting alfonsoml's review points.

[Kevin Williams]

garry.yao's second patch for this defect appears to resolve defects #4761, #4775, #4718, #5086, and of course #4762 in my local testing; it applies seamlessly for me to the release tagged 3.1. Thank you garry!

[Garry Yao]

Fixed with [5008].

[Garry Yao]

#5106 and #3817 has been marked as duplicates.