292566 - ::selection/::-moz-selection pseudo-element ignored on form controls

Status: RESOLVED DUPLICATE of bug 183646

(Core :: Layout: Form Controls, defect)

Description

[pete]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b2) Gecko/20050430 Firefox/1.0+
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b2) Gecko/20050430 Firefox/1.0+

It's ignored, but not quite really though. If you put something like this:

::-moz-selection {
	background-color:#EB0 !important;
	color:#fff !important;
}

in userContent.css, it uses these colors instead of the system colors except for
SELECT element, where selected text still uses the system colors.

Reproducible: Always

Steps to Reproduce:

Comment 1

[pete]

Attachment: testcase

ugly looking testcase, but it shows that you can replace colors, bg-colors, and
borders except for the selection color on form controls.

Comment 2

[Hixie (not reading bugmail)]

That's not a bug, IMHO; the select element's selection is not a text selection,
it's an item selection, and is therefore not covered by ::selection.

Comment 3

[pete]

Oops, you're right, authors should use option[selected] to style it. The rest of
the bug report still applies though.

Comment 4

[Hixie (not reading bugmail)]

Could you specify what behaviour you think should change for this bug report to
be considered fixed? I don't understand what there is here other than the
<select> case.

Comment 5

[pete]

On my machine, viewing this testcase, ::-moz-selection isn't being applied to
the textarea or type="text" input box when you highlight its text.

Comment 6

[Boris Zbarsky [:bzbarsky]]

The only reason it works in userContent.css is because that applies to anonymous
content.  From a page's point of view, the text in a text input doesn't exist --
the text input is a replaced element.  So CSS doesn't apply to it.  I don't
think we should change that.

Comment 7

[Aurélien Maille]

However, CSS3 explicitly say:

"This also applies, for example, to selected text within an editable text field."

http://www.w3.org/TR/2001/CR-css3-selectors-20011113/#UIfragments

Comment 8

[Boris Zbarsky [:bzbarsky]]

That requirement cannot be fulfilled, in general.

Comment 9

[Anne (:annevk)]

Not working in html:textarea is bug 183646.