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Make option disabledness look for ancestor optgroups #11721

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Merged
merged 5 commits into from
Oct 8, 2025
+23 −5
Merged

Make option disabledness look for ancestor optgroups #11721

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cae57b6
Make option disabledness look for ancestor optgroups
josepharhar Sep 29, 2025
10b756a
look for nearest ancestor
josepharhar Sep 30, 2025
7ddc327
use algorithm and check for select elements
josepharhar Oct 1, 2025
3b60a7a
incorporate hr and option element ancestors
josepharhar Oct 1, 2025
39c41f5
remove extra return
josepharhar Oct 7, 2025
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28 changes: 23 additions & 5 deletions source
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Original file line number Diff line number Diff line change
Expand Up @@ -56987,11 +56987,29 @@ interface <dfn interface>HTMLOptionElement</dfn> : <span>HTMLElement</span> {

<div algorithm>
<p>The <dfn element-attr for="option"><code data-x="attr-option-disabled">disabled</code></dfn>
attribute is a <span>boolean attribute</span>. An <code>option</code> element is <dfn
data-x="concept-option-disabled">disabled</dfn> if its <code
data-x="attr-option-disabled">disabled</code> attribute is present or if it is a child of an
<code>optgroup</code> element whose <code data-x="attr-optgroup-disabled">disabled</code>
attribute is present.</p>
attribute is a <span>boolean attribute</span>. An <code>option</code> element <var>option</var> is
<dfn data-x="concept-option-disabled">disabled</dfn> if the following steps return true:</p>

<ol>
<li><p>If <var>option</var>'s <code data-x="attr-option-disabled">disabled</code> attribute is
present, then return true.</p></li>

<li>
<p>For each <var>ancestor</var> of <var>insertedOption</var>'s <span
data-x="ancestor">ancestors</span> in reverse <span>tree order</span>:</p>

<ol>
<li><p>If <var>ancestor</var> is a <code>select</code>, <code>hr</code>, or <code>option</code>
element, then return false.</p></li>

<li><p>If <var>ancestor</var> is an <code>optgroup</code> element, then return true if
<var>ancestor</var>'s <code data-x="attr-optgroup-disabled">disabled</code> attribute is
present; otherwise false.</p></li>
</ol>
</li>

<li><p>Return false.</p></li>
</ol>
</div>

<div w-nodev>
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