43898 - [BLOCK][ABS POS]box-sizing:border-box killed by position:absolute

Status: RESOLVED WORKSFORME

(Core :: Layout: Positioned, defect, P3)

Description

[Matthias Kerkhoff]

From Bugzilla Helper:
User-Agent: Mozilla/4.73 [en] (WinNT; U)
BuildID:    2000062608

box-sizing:border-box does not work on elements with absolute positioning.

Reproducible: Always
Steps to Reproduce:
1. View the attachement
2. Notice the equal(!) widths of the absolute positioned elements


Actual Results:  All absolute positioned DIV and INPUT elements on the attached 
testcase behave as if box-sizing:content-box has been specified.
box-sizing:border-box is ignored.

Expected Results:  The width of absolute positioned DIV and INPUT elements 
should be different depending on wether box-sizing:content-box or box-sizing:
border-box has been specified.

Also buggy in M16.

Comment 1

[Matthias Kerkhoff]

Attachment: Testcase

Comment 2

[Marc Attinasi]

Yup, there is a problem with how layout is dealing with the box-sizing property 
when an element is abs. positioned. 

The style context data is correct, moving to layout component.

Comment 3

[Marc Attinasi]

Sending to buster since he has other block/abspos bugs that are certainly 
related to this one.

Comment 4

[Hixie (not reading bugmail)]

As per meeting with ChrisD today, taking QA.

Comment 5

[Matthias Kerkhoff]

Width calculation is still incorrect with 20000072520

Comment 6

[buster]

P3 bugs are getting moved to "future" milestone.  They will not be addressed for
NS6 RTM.

Comment 7

[Kevin McCluskey (gone)]

Build reassigning Buster's bugs to Marc.

Comment 8

[Greg K.]

Assuming that the equality of the DIV widths to each other, and the INPUT widths
to each other (but DIV and INPUT widths being different) is the problem behavior
demonstrated by the testcase, reconfirmed using FizzillaCFM/2002071508. Setting
All/All.

Comment 9

[Christopher Hoess (gone)]

->R&A Pos

Comment 10

[Boris Zbarsky [:bzbarsky]]

The testcase worksforme once I replace "box-sizing" by "-moz-box-sizing". 
Please do check whether the bug exists before reassigning..

Comment 11

[Erik Arvidsson]

Attachment: Changed to -moz-box-sizing

Updated test case shows that this has been fixed