[Webkit-unassigned] [Bug 85150] REGRESSION (r113511): Many autofilled form fields lack the default autofill background even when authors don’t override the autofill colors

Mon Apr 30 19:15:51 PDT 2012

https://bugs.webkit.org/show_bug.cgi?id=85150

Tab Atkins Jr. <jackalmage at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |jackalmage at gmail.com

--- Comment #4 from Tab Atkins Jr. <jackalmage at gmail.com>  2012-04-30 19:15:51 PST ---
There *is* a way to get this to work, as long as the state is exclusive with other similar states.  I think it is here.

Placeholder has a basically identical problem.  The way that was discussed to fix that was to add some additional pseudo-elements.

<input> gets a ::value that wraps its normal text contents, and only accepts a handful of properties.  (This part isn't strictly necessary.)

While an <input> is showing a placeholder, it generates a ::placeholder pseudo which wraps the placeholder text.  Since this only happens when the input doesn't have any normal text, this acts "normally".

Similarly, an auto-filled input would generate an ::autofill pseudo-element that wraps its autofilled text.  Once the user starts interacting with it, the text would move from ::autofill to ::value.

This handles the specificity problem by ignoring it, because rules on "input" would only affect the ::autofill pseudo by inheritance, and inheritance is the weakest possible form of rule.

Possibly, to enforce that these states are exclusive, we should do these three as a single pseudo with an argument:  ::value(normal), ::value(placeholder), and ::value(autofill).  The input would generate one and only one of these at a time.

(Theoretically, we could do this with pseudo-classes on the pseudo-element, but that's not allowed by current Selector syntax, and it would still potentially suffer problems with authors just styling "::value" and overriding all the states.)

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