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[css-forms-1] Add new pseudo-elements for customizable select #10986

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Merged
merged 10 commits into from
Nov 27, 2024
+28 −1
Merged

[css-forms-1] Add new pseudo-elements for customizable select #10986

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b6bf511
Add new pseudo-elements for customizable select
josepharhar Oct 1, 2024
f9d079e
add box placement
josepharhar Oct 1, 2024
e056ba8
make tree-abiding instead of part-like
josepharhar Oct 14, 2024
8599e90
fix before/after
josepharhar Oct 14, 2024
649c35f
remove immediate
josepharhar Oct 14, 2024
ed13323
matches -> generated
josepharhar Oct 14, 2024
665e052
require base appearance
josepharhar Oct 14, 2024
ee87eb9
Merge branch 'main' into selecticons
josepharhar Oct 15, 2024
44d2a40
move to css-forms-1
josepharhar Oct 15, 2024
992a99d
dont tie to select
josepharhar Nov 22, 2024
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28 changes: 27 additions & 1 deletion css-pseudo-4/Overview.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -1634,6 +1634,32 @@ Styling form control pickers: the ''::picker()'' pseudo-element</h3>
&lt;/style>
</pre>

<h3 id="select-arrow">
Select dropdown icon: the ''::select-arrow'' pseudo-element</h3>

The ''::select-arrow'' pseudo-element only matches when the <a>originating
element</a> is a <{select}> element.

''::select-arrow'' is a [=part-like pseudo-element=], so there is no
restriction on which properties apply to the ''::select-arrow'' pseudo-element.

''::select-arrow'' generates a box as if it was an immediate child of its
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Are there conditions on when this generates a box? Does it only do something for appearance: base-select?

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Sure, I added the restriction that there must be a select element with base appearance.

<a>originating element</a>, preceding any boxes generated by the ''::before''
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So I'm wondering if the idea that it precedes the ::before is incompatible with being part-like. I'm a little worried that it might be.

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I made it not part like anymore. Does that resolve this?

pseudo-element, with content as specified by 'content'.
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I'm also worried about allowing content here when it doesn't (in reality) work on elements, which part-like pseudo-elements should fully behave like.

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I made it not part like anymore. Does that resolve this?


<h3 id="check">
Option checkmark icon: the ''::check'' pseudo-element</h3>

The '::check'' pseudo-element only matches when the <a>originating
element</a> is a <{option}> element.
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As I commented in the chromium prototype CL, should this instead say that the pseudo-element is only generated for option elements? That's an observable difference for getComputedStyle(div, '::check').

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I changed it to say generated instead of matches


''::check'' is a [=part-like pseudo-element=], so there is no restriction on
which properties apply to the ''::check'' pseudo-element.

''::check'' generates a box as if it was an immediate child of its
<a>originating element</a>, preceding any boxes generated by the ''::before''
pseudo-element, with content as specified by 'content'.


<h2 id="interactions">
Overlapping Pseudo-element Interactions</h2>
Expand Down Expand Up @@ -1986,4 +2012,4 @@ Acknowledgements</h2>
get-computed-style-crash.html
svg-text-selection-002.html
text-selection.html
</wpt>
</wpt>