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Re: Serializing gradient function

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Wed, 12 Jan 2011 10:38:46 -0800
Message-ID: <AANLkTi=ct=6LepqwZCn3nPJY9QzeA-fRsJBxUUZeco3Y@mail.gmail.com>
To: Rafal Chlodnicki <rchlodnicki@opera.com>
Cc: www-style@w3.org
On Wed, Jan 12, 2011 at 9:04 AM, Tab Atkins Jr. <jackalmage@gmail.com> wrote:
> 2011/1/11 Rafal Chlodnicki <rchlodnicki@opera.com>:
>> Given the linear-gradient(black, white) value for background property,
>> should serialized value include implicit "top" gradient-line?
>> Quote from http://dev.w3.org/csswg/cssom/#css-values:
>> "Where CSS component values of the value can be omitted without changing the
>> meaning of the value (e.g. initial values in shorthand properties), omit
>> them. If this would remove all the values, then include the first allowed
>> value.
>> That could apply here but not necessary as it's unclear if it applies to
>> arguments of css functions too.
>> Currently, internal implementation in Opera does not return it. I can see
>> that webkit's does (and Gecko's is not quite up to date so not sure if it's
>> relevant).
> The spec has explicit instructions for how to serialize gradient
> functions <http://dev.w3.org/csswg/css3-images/#serializing-gradients>.
> Or rather, it *would*, if I hadn't mucked up something when I
> committed last night.  Looks like I've uncovered a bug in the spec
> formatter.  For now, check out
> <http://dev.w3.org/csswg/css3-images/Overview.src.html> and look near
> the bottom for the gradient serialization algorithm.
> Short answer: the spec currently requires that gradient to be
> serialized as "linear-gradient(top, black, white)".

Ooh, found a mistake.  *Actually*, the current spec required it to be
serialized as "linear-gradient(topblack, white)".  I've fixed the

Received on Wednesday, 12 January 2011 18:39:39 UTC

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