267928 - absolutly positionned element in relatively positionned fieldset displayed way down the page

Status: RESOLVED WORKSFORME

(Core :: Layout: Positioned, defect)

Description

[Rémi Zara]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; fr-FR; rv:1.7.3) Gecko/20040910
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; fr-FR; rv:1.7.3) Gecko/20040910

When trying to absolutely position an element in a fieldset (whose position is
set to relative), setting the bottom property makes the element be displayed way
down the page. The Dom inspector reports an y position of 71582754.

Reproducible: Always
Steps to Reproduce:




Expected Results:  
the element is positionned at the bottom of the fieldset

Comment 1

[Rémi Zara]

Attachment: testcase

fairly reduced test case

Removing the doctype to switch to quircks mode does not solve the problem

Comment 2

[Rémi Zara]

same problem on Camino (2004110508 (v0.8+))

Comment 3

[Rémi Zara]

Same problem on FireFox RC2 Mac

Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.5) Gecko/20041103 Firefox/1.0RC2

Comment 4

[Boris Zbarsky [:bzbarsky]]

In a debug build, I see:

###!!! ASSERTION: containing block height must be constrained:
'containingBlockHeight != NS_AUTOHEIGHT', file
/home/bzbarsky/mozilla/xlib/mozilla/layout/html/base/src/nsHTMLReflowState.cpp,
line 911

So I bet we use NS_AUTOHEIGHT as the offset....

Comment 5

[Rémi Zara]

This bug is still present in Mozilla 1.7.6
Mozilla/5.0 (Windows; U; Windows NT 5.0; fr-FR; rv:1.7.6) Gecko/20050319

Comment 6

[Boris Zbarsky [:bzbarsky]]

1.7.6 is using a Gecko from April 2004....  Not really worth testing layout bugs in.

The testcase works fine in a current trunk build, with no asserts.