276204 - percentage values of width and height isn't applied to xul elements

Status: RESOLVED INVALID

(Core :: XUL, defect)

Description

[alexander :surkov (:asurkov)]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8a5) Gecko/20041122
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8a5) Gecko/20041122

In instance I try:

<box style="border: thin solid black; width: 30%; height: 30%"/>

Box is flexed in width and has height 0px.

Reproducible: Always

Steps to Reproduce:

Comment 1

[Bernd]

from http://www.mozilla.org/xpfe/xulref/boxref.html

When an element does have some flexibility, the width is understood to be the
minimum width, past which the element flexes into the containing space.

Comment 2

[alexander :surkov (:asurkov)]

Yes. I agree flexible element should flex. In our case it is right for width but
it is not correct for height.

What do you mean by minimum width? Is it min-width attribute or something else?

Comment 3

[Boris Zbarsky [:bzbarsky]]

It flexes into the remaining space in the parent box direction.  In the
perpendicular direction, it just uses whatever the computed value is (in this
case, most likely 30% of auto, so auto, so 0.

Comment 4

[[e-mail]]

I'm not even sure we support percentage dimensions in XUL (except 0% of course).

Comment 5

[Boris Zbarsky [:bzbarsky]]

Hmm... right you are.  Percent sizes are treated as auto (except 0%, as you said).

So the bug is valid (dup?) if we plan to change that, wontfix otherwise.