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firefox/testing/web-platform/tests/selection
Di Zhang 875d2a8f08 Bug 1914293 [wpt PR 47729] - [Selection API] Fix selection isCollapsed in ShadowDOM, a=testonly
Automatic update from web-platform-tests
[Selection API] Fix selection isCollapsed in ShadowDOM

Selection isCollapsed should return true if and only if the anchor
and focus are the same [1]. This should be true even if the selection
is not in the light tree, but in the shadow tree [2].

Note that if selection is across multiple shadow trees, it will still
return true because the range endpoints are not valid and were
collapsed. That should be re-evaluated in SelectionAcrossShadowDOM.

[1] https://w3c.github.io/selection-api/#dom-selection-iscollapsed
[2] https://w3c.github.io/selection-api/#h-note-3

Change-Id: I4aaaef288ac1879644a3f719386d58c6025302bf
Bug: 40400558
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5792085
Reviewed-by: Mason Freed <[email protected]>
Commit-Queue: Di Zhang <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1345127}

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wpt-commits: aa1420c6ec2d8150f8c6844fe544c8193807f653
wpt-pr: 47729
2024-08-23 07:39:26 +00:00
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