[wpt-sync] Sync PR 19530 - Fix shadow-dom/focus/focus-selector-delegatesFocus.html for slotted elements
Categories
(Core :: DOM: Core & HTML, task, P4)
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| Tracking | Status | |
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| firefox71 | --- | fixed |
People
(Reporter: mozilla.org, Unassigned)
References
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Details
(Whiteboard: [wptsync downstream])
Sync web-platform-tests PR 19530 into mozilla-central (this bug is closed when the sync is complete).
PR: https://github.com/web-platform-tests/wpt/pull/19530
Details from upstream follow.
Ryosuke Niwa <rniwa@webkit.org> wrote:
Fix shadow-dom/focus/focus-selector-delegatesFocus.html for slotted elements
As specified in https://html.spec.whatwg.org/multipage/semantics-other.html#element-has-the-focus, an element has focus when itself is in the focus chain or its shadow root contains the focused element.
Since the shadow tree does not contain a slotted element, its shadow host should not match :focus pseudo class. Otherwise, the shadow host's tree would end up containing more than one element which match :focus, for example, the shadow host and its direct child which is actually focused.
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Description
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