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Bug 1419799 - Fix nsContentUtils::IsInSameAnonymousTree in Shadow DOM

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Tag #1375
This commit is contained in:
Matt A. Tobin 2020-04-17 07:23:48 -04:00 • committed by Roy Tam
commit 6d8e6e8955
3 changed files with 19 additions and 11 deletions
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12
dom/base/nsContentUtils.cpp
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@ -4955,17 +4955,7 @@ nsContentUtils::IsInSameAnonymousTree(const nsINode* aNode,
return aContent->GetBindingParent() == nullptr;
}
const nsIContent* nodeAsContent = static_cast<const nsIContent*>(aNode);
// For nodes in a shadow tree, it is insufficient to simply compare
// the binding parent because a node may host multiple ShadowRoots,
// thus nodes in different shadow tree may have the same binding parent.
if (aNode->IsInShadowTree()) {
return nodeAsContent->GetContainingShadow() ==
aContent->GetContainingShadow();
}
return nodeAsContent->GetBindingParent() == aContent->GetBindingParent();
return aNode->AsContent()->GetBindingParent() == aContent->GetBindingParent();
}
class AnonymousContentDestroyer : public Runnable {