299586 - Reflow oddity when setting the value attribute on a <xul:label> for the first time

Status: RESOLVED WORKSFORME

(Core :: Layout, defect)

Description

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The forthcoming test case displayes a <xul:button type="menu"/> element. This
element uses XBL to display a label on the left and a dropmarker on the right.
However if you do not provied a label, but set the label in script after the
button has been displayed, then the dropmarker visually jumps to the left.

My guess is that there is some sort of conflict between the two modes of a
<xul:label> - without a value attribute, where it displays its HTML content, and
with a value attribute, where it displays a single line of croppable text.

Comment 1

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Attachment: Test case

Comment 2

[Boris Zbarsky [:bzbarsky]]

Probably the same underlying reason as bug 272646

Comment 3

[Boris Zbarsky [:bzbarsky]]

This worksforme even before fixing bug 272646.