376607 - <select> boxes paint a box when its visibility is change to hidden.

Status: NEW

(Core :: Web Painting, defect)

Description

[José Aliste]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a3) Gecko/20070322 GranParadiso/3.0a3
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a3) Gecko/20070322 GranParadiso/3.0a3

If you have a <select> box change its visibility to hidden then a box with the color of the background remains painted. 
This is similar to bug 206000 but this bug is specific to win98 so I've been told to file a new one. I think this bug is all platforms, because I can at least  reproduce it in the mac and in linux with Graparadiso alpha 3. I will add a modified testcase soon!

 

Reproducible: Always

Steps to Reproduce:
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Comment 1

[José Aliste]

Attachment: Testcase

to reproduce using the test case just click in the <select> as usual to see the green box appear

Comment 2

[Boris Zbarsky [:bzbarsky]]

Yeah, indeed.  Nice testcase!

Eli, want to look into this?

Comment 3

[Eli Friedman]

Okay, this isn't too hard: the reason this doesn't work is that we don't support transparent popups.  The green is the default background for the document.

Of course, we could decide that setting visibility: hidden on a select should do something different...

Comment 4

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

We should hide the popup if the <select> is visibility:hidden.

Comment 5

[Eli Friedman]

(In reply to comment #4)
> We should hide the popup if the <select> is visibility:hidden.

Okay, makes sense.  I'll think about it a bit...

I'm assuming we don't care if someone sets one of the options to "visibility: visible".

Comment 6

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

Yeah, I think we should just break that. The only alternative would be to enable transparent dropdowns, which I think we don't want to do.