224478 - -moz-opacity: 1.1 makes transparent GIF color appear black

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, defect, P2)

Description

[Zibi Braniecki [:zbraniecki][:gandalf]]

In Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6a) Gecko/20031102 Firebird/0.7+

At alladyn.art.pl menu gif's backgrounds are black. Probably it's caused by fix
from bug 201209.

Comment 1

[Zibi Braniecki [:zbraniecki][:gandalf]]

Attachment: Screenshot

Comment 2

[Jacek Piskozub]

I see the same problem with a new CVS build (approx. 2003110212) on Windows ME
while Mozilla 1.6a release WFM.

This could be a regression from bug 212366 rather then 201209.

Changing Hardware/OS to All/All

Comment 3

[Jacek Piskozub]

Changing the summary to more appropriate...

Comment 4

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

I wonder if this is related to being in a DIV with '-moz-opacity: 1.1'.

Comment 5

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

css3-color says opacity should be clamped to the range [0.0,1.0], and doing so
fixes this bug.

Comment 6

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Attachment: patch

Comment 7

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Comment on attachment 134667 [details] [diff] [review]
patch

I think this is the right fix since
http://www.w3.org/TR/2003/CR-css3-color-20030514/#transparency says the
computed value should be modified.

Comment 8

[Robert O'Callahan (:roc) (email my personal email if necessary)]

Comment on attachment 134667 [details] [diff] [review]
patch

good catch

Comment 9

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Fix checked in, 2003-11-02 14:40 -0800.