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Re: Proposal for changes to manage Shadow DOM content distribution

From: Olli Pettay <olli@pettay.fi>
Date: Wed, 22 Apr 2015 16:15:48 -0700
Message-ID: <55382BA4.5000408@pettay.fi>
To: WebApps WG <public-webapps@w3.org>
On 04/22/2015 03:54 PM, Tab Atkins Jr. wrote:
> On Wed, Apr 22, 2015 at 2:53 PM, Ryosuke Niwa <rniwa@apple.com> wrote:
>> On Apr 22, 2015, at 2:38 PM, Tab Atkins Jr. <jackalmage@gmail.com> wrote:
>>> On Wed, Apr 22, 2015 at 2:29 PM, Ryosuke Niwa <rniwa@apple.com> wrote:
>>>> On Apr 22, 2015, at 8:52 AM, Domenic Denicola <d@domenic.me> wrote:
>>>>> Between content-slot-specified slots, attribute-specified slots,
>>>>> element-named slots, and everything-else-slots, we're now in a weird place
>>>>> where we've reinvented a micro-language with some, but not all, of the power
>>>>> of CSS selectors. Is adding a new micro-language to the web platform worth
>>>>> helping implementers avoid the complexity of implementing CSS selector
>>>>> matching in this context?
>>>>
>>>> I don't think mapping an attribute value to a slot is achievable with a
>>>> content element with select attribute.
>>>
>>> <content select="[my-attr='the slot value']">
>>
>> No. That's not what I'm talking here.  I'm talking about putting the
>> attribute value into the insertion point in [1] [2] [3], not distributing an
>> element based on an attribute value.
>
> Oh, interesting.  That appears to be a complete non-sequitur, tho, as
> no one has asked for anything like that.  It's *certainly* irrelevant
> as a response to the text you quoted.


FYI, putting attribute into the (attribute) insertion point is something XBL[1|2] support.
https://developer.mozilla.org/en-US/docs/XBL/XBL_1.0_Reference/Anonymous_Content#Attribute_Forwarding
http://www-archive.mozilla.org/projects/xbl/xbl2.html#forwarding

xbl:text isn't used too often, but used  anyhow,
http://mxr.mozilla.org/mozilla-central/search?string=xbl%3Atext
and xbl:inherits is rather common
http://mxr.mozilla.org/mozilla-central/search?string=xbl%3Ainherits&find=&findi=&filter=^[^\0]*%24&hitlimit=&tree=mozilla-central
in Firefox' UI, which after all is mostly created using various components or bindings (doesn't matter whether the underlying language is XUL or HTML).



-Olli
Received on Wednesday, 22 April 2015 23:16:23 UTC

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