On 2.7.2013 18:03, Tab Atkins Jr. wrote:
On Tue, Jul 2, 2013 at 8:52 AM, Bronislav Klučka
<[email protected]> wrote:
On 2.7.2013 17:28, Tab Atkins Jr. wrote:
On Tue, Jul 2, 2013 at 6:32 AM, Bronislav Klučka
<[email protected]> wrote:
2/ change of part attribute from DOMString to DOMTokenList
This sounds all right.  part='' is already class-like, since multiple
elements can have the same part='' value.  The example at your page is
pretty compelling about this ability's usage.  I guess ::part() would
also expand to taking a list of idents.
Why would it? We have established convention for AND operator
.class1.class2
would became
::part(node-checked)::part(node-selected)

and for OR operator
.class1, .class2
would became
::part(node-checked), ::part(node-selected)

:matches(.class1, .class2)
would became
:matches(::part(node-checked), ::part(node-selected))
Oh, no no no.  ::part() is not a pseudo-class, it's a pseudo-element -
it points to a brand new element, rather than filtering the one you've
got.  The fact that part='' is acting like class='' notwithstanding,
using ::part() like would be an abuse of the syntax.  If we want to
support this, it has to be through something like "::part(node-checked
node-selected)".

As an example of why violating the syntax model is a bad idea, this
directly conflicts with your desire to surface the ::part()s of nested
components - the thing that exposes them might be exposed as a
::part() as well, so you need to be able to chain off of an existing
::part(), like "x-video::part(controls)::part(play-button)" (assuming
the controls were actually implemented by another component nested
inside the <x-video> shadow tree).

~TJ
so
x-video::part(controls)::part(play-button)
would target part="play-button" within part="controls" within x-video?

and the list of idents
::part(part1 part2) {without comma? with comma?}
would target part="part1 part2"? an AND operator?

the OR I've mentioned being correct?

so how about this:

::part(node-checked)::part(node-selected)
would represent any selected node within checked node (regardless of level of 
nesting)
::part(node-checked) > ::part(node-selected)
would represent selected node within checked node (directly within, no other 
part in between)

?





Brona

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