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Enforce same parameters for attachShadow on declarative shadow root #1246

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merged 8 commits into from
Feb 16, 2024
Merged

Enforce same parameters for attachShadow on declarative shadow root #1246

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cbad36e
Just assert that a cloned node is not a shadow host
mfreed7 Jan 16, 2024
3b3e70a
Enforce same parameters for attachShadow on declarative shadow root
mfreed7 Jan 16, 2024
13198db
Address comments
mfreed7 Jan 27, 2024
1c63c4f
Address comments
mfreed7 Jan 29, 2024
149f31c
Fix slotAssignment to be a string
mfreed7 Feb 2, 2024
1c0b37c
Remove checks except for mode
mfreed7 Feb 10, 2024
16dcb39
Address comments
mfreed7 Feb 15, 2024
30a0f3b
nits
annevk Feb 15, 2024
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33 changes: 30 additions & 3 deletions dom.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -4502,6 +4502,8 @@ dom-Range-extractContents, dom-Range-cloneContents -->
<a for=ShadowRoot>clonable</a> is true:

<ol>
<li><p>Assert: <var>copy</var> is not a <a for=Element>shadow host</a>.
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(It's weird that this has for=Element, but that's a pre-existing issue.)

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Want me to change something?

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If you want to take it on, it should be a separate PR making it a standalone term that doesn't belong to Element.


<li><p>Run <a>attach a shadow root</a> with <var>copy</var>, <var>node</var>'s
<a for=Element>shadow root</a>'s <a for=ShadowRoot>mode</a>, true, <var>node</var>'s
<a for=Element>shadow root</a>'s <a for=ShadowRoot>delegates focus</a>, and <var>node</var>'s
Expand Down Expand Up @@ -6929,7 +6931,11 @@ are:
<div algorithm>
<p>To <dfn id=concept-attach-a-shadow-root>attach a shadow root</dfn>, given an
<a for=/>element</a> <var>element</var>, a string <var>mode</var>, a boolean <var>clonable</var>,
a boolean <var>delegatesFocus</var>, and a boolean <var>slotAssignment</var>:
a boolean <var>delegatesFocus</var>, and a string <var>slotAssignment</var>:
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<!-- Any new parameters added to <a>attach a shadow root</a> should be
added to the list of parameter-match tests under "If one of the
following is true" below. -->

<ol>
<li><p>If <var>element</var>'s <a for=Element>namespace</a> is not the <a>HTML namespace</a>,
Expand Down Expand Up @@ -6958,8 +6964,29 @@ a boolean <var>delegatesFocus</var>, and a boolean <var>slotAssignment</var>:
<p>If <var>element</var> is a <a for=Element>shadow host</a>, then:

<ol>
<li><p>If <var>element</var>'s <a for=Element>shadow root</a>'s <a for=ShadowRoot>declarative</a>
is false, then <a>throw</a> an "{{NotSupportedError!!exception}}" {{DOMException}}.
<li><p>Let <var>currentShadowRoot</var> be <var>element</var>'s
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<a for=Element>shadow root</a>.

<li>
<p>If one of the following is true:

<ul>
<li><p><var>currentShadowRoot</var>'s <a for=ShadowRoot>declarative</a> is false,

<li><p><var>currentShadowRoot</var>'s <a for=ShadowRoot>mode</a> does not match
<var>mode</var>,

<li><p><var>currentShadowRoot</var>'s <a for=ShadowRoot>delegates focus</a> does
not match <var>delegatesFocus</var>,

<li><p><var>currentShadowRoot</var>'s <a for=ShadowRoot>slot assignment</a> does
not match <var>slotAssignment</var>, or

<li><p><var>currentShadowRoot</var>'s <a for=ShadowRoot>clonable</a> does
not match <var>clonable</var>,
</ul>

<p>then <a>throw</a> a "{{NotSupportedError!!exception}}" {{DOMException}}.

<li>
<p>Otherwise:
Expand Down
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