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[css-highlight-api] highlightsFromPoint: add support for StaticRanges for #11745 #11779

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Mar 3, 2025
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[css-highlight-api] highlightsFromPoint: add support for StaticRanges for #11745 #11779

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10 changes: 7 additions & 3 deletions css-highlight-api-1/Overview.bs
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Expand Up @@ -668,15 +668,19 @@ method must return the result of running these steps:
* <var>x</var> is greater than the <a>viewport</a> width excluding the size of a rendered scroll bar (if any)
* <var>y</var> is greater than the <a>viewport</a> height excluding the size of a rendered scroll bar (if any)
1. Otherwise, return a [=sequence=] of [=custom highlights=] given by ordering the highlights contained in this {{HighlightRegistry}} in descending order of [=priority=],
excluding the highlights without at least one [=range=] <var>range</var> that satisfies the following constraints:
1. The coordinates <var>x</var>,<var>y</var> fall inside at least one of the {{DOMRect}}s returned by calling {{Range/getClientRects()}} on <var>range</var>.
including only those highlights that contain at least one {{AbstractRange}} <var>abstractRange</var> that satisfies the following:

* Let <var>range</var> be a {{Range}} object whose [=start node=] and [=end node=] are set to <var>abstractRange</var>'s [=start node=] and [=end node=] respectively,
and [=start offset=] and [=end offset=] are set to <var>abstractRange</var>'s [=start offset=] and [=end offset=] respectively.

* The coordinates <var>x</var>,<var>y</var> fall inside at least one of the {{DOMRect}}s returned by calling {{Range/getClientRects()}} on <var>range</var>.

Note: The specifics of hit testing are out of scope of this
specification and therefore the exact details of
{{highlightsFromPoint()}} are therefore too. Hit testing
will hopefully be defined in a future revision of CSS or HTML.

1. The <var>range</var>'s {{commonAncestorContainer}} is not in a [=shadow tree=] or is in a [=shadow tree=] whose
* The <var>range</var>'s {{commonAncestorContainer}} is not in a [=shadow tree=] or is in a [=shadow tree=] whose
[=shadow root=] is [=list/contains|contained by=] by <var>options</var>.<var>shadowRoots</var>.

<h2 id=events>
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