$('#elem').css('width') in percentage in jquery 1.5.2 vs 1.7.1

Reported by:	strikernl2	Owned by:
Priority:	undecided	Milestone:	None
Component:	unfiled	Version:	1.7.1
Keywords:		Cc:
Blocked by:		Blocking:

Description

''I'm not actually sure that this is a bug or just intended changed behaviour between jQuery 1.5.2 and 1.6 (and thus 1.7.1), but here goes.''

I'm in the process of upgrading a web application from jQuery 1.5.2 to 1.7.1. In jQuery 1.5.2, it was possible to get the percentage CSS value of an element using $('#elem').css('width'), if the element was inside another hidden element.

'''To be clear, I need the CSS value in PERCENTS and I don't know beforehand whether it will be in percents, or px, or em, or whatever.'''

For a simple test case, see here: http://jsfiddle.net/strikernl/y3P3A/

It seemed to work in 1.5.2, then no longer in 1.7.1. I added 1.6 in the test just to see if that still worked, and it didn't, so it broke somewhere between 1.5.2 and 1.6 I guess.

Attachments (0)

Change History (7)

Changed December 16, 2011 04:35PM UTC by dmethvin comment:1

resolution:	→ duplicate
status:	new → closed

Changed December 16, 2011 04:35PM UTC by dmethvin comment:2

Duplicate of #10782.

Changed December 16, 2011 06:29PM UTC by anonymous comment:3

Sorry, I did look, could not find a matching ticket however. Thanks!

Changed October 24, 2012 09:20PM UTC by tylerism@gmail.com comment:4

This is not a duplicate ticket. This needs to be fixed. It is returning pixels instead of percentage. The linked ticket is for a separate issue, when div is inside a hidden element

Changed October 24, 2012 09:38PM UTC by dmethvin comment:5

.css() uses the browser's .getComputedStyle() which is supposed to get the **computed** styles in pixels, if not for some bug cases in various implementations. Fixing that is beyond the capability of jQuery, we don't have the information. This whole mess is under discussion in the W3C lists if you want to follow them.

Ref: http://lists.w3.org/Archives/Public/www-style/2012Jul/0282.html

Changed October 24, 2012 09:52PM UTC by tylerism@gmail.com comment:6

That is very interesting. So you are saying that if I have a div whose width is 100% I cannot get that information back from JQuery? but selecting that div and running .width() or .css()?

Changed October 24, 2012 09:53PM UTC by tylerism@gmail.com comment:7

Replying to [comment:6 tylerism@…]: