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Re: [css-compositing][css-filters] enable-background vs isolation

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Mon, 17 Sep 2012 06:42:35 -0700
Message-ID: <CAAWBYDBsFxpXzUiWvsO1qRfY993dMSo9jtBjiOJ2VwUcCXy+Ng@mail.gmail.com>
To: Rik Cabanier <cabanier@gmail.com>
Cc: www-style list <www-style@w3.org>
On Mon, Sep 17, 2012 at 6:29 AM, Rik Cabanier <cabanier@gmail.com> wrote:
> All,
> in response to feedback on the mailing list and working group
> discussions, it was decided to deprecate 'enable-background' [1] and
> replace it with 'isolation' [2].
> The problem now is that we will need to preserve 'enable-background'
> since there is existing content that relies on it.
> We want to change the spec wording so these 2 properties 'shadow' each
> other. So if you set 'isolation' to 'isolate', 'enable-background'
> will change to 'new'. The last property that is set, would always win.
> The SVG WG had a discussion that this 'shadowing' is also going to
> happen (and be documented) for certain font properties so it's most
> likely OK for us to do the same.
> Does anyone have an issue with this?
> Rik
> 1: https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html#EnableBackgroundProperty
> 2: http://www.w3.org/TR/2012/WD-compositing-20120816/#enable-background :-)

Existing content is the only reason to ever alias things. ^_^

We have an agreed-upon way to do aliasing - make the deprecated
property a shorthand for the good property.

Received on Monday, 17 September 2012 13:43:27 UTC

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