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Issue #2135 - Bug 1413102: Ensure Shadow DOM boundaries are dealt properly in event handling

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* RE: BasicEvents.h - our WidgetEvent is not movable (yet), so the change that requires that wasn't included.
* Parts of this use code that was introduced in bug 1427511. For now, they were replaced with their equivalents.
This commit is contained in:
FranklinDM 2023-03-03 21:22:02 +08:00 • committed by roytam1
commit 24572438a0
9 changed files with 299 additions and 70 deletions
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12
dom/base/ShadowRoot.cpp
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@ -311,6 +311,8 @@ ShadowRoot::GetEventTargetParent(EventChainPreVisitor& aVisitor)
{
aVisitor.mCanHandle = true;
aVisitor.mRootOfClosedTree = IsClosed();
// Inform that we're about to exit the current scope.
aVisitor.mRelatedTargetRetargetedInCurrentScope = false;
// https://dom.spec.whatwg.org/#ref-for-get-the-parent%E2%91%A6
if (!aVisitor.mEvent->mFlags.mComposed) {
@ -333,12 +335,10 @@ ShadowRoot::GetEventTargetParent(EventChainPreVisitor& aVisitor)
nsIContent* shadowHost = GetHost();
aVisitor.SetParentTarget(shadowHost, false);
if (aVisitor.mOriginalTargetIsInAnon) {
nsCOMPtr<nsIContent> content(do_QueryInterface(aVisitor.mEvent->mTarget));
if (content && content->GetBindingParent() == shadowHost) {
aVisitor.mEventTargetAtParent = shadowHost;
}
}
nsCOMPtr<nsIContent> content(do_QueryInterface(aVisitor.mEvent->mTarget));
if (content && content->GetBindingParent() == shadowHost) {
aVisitor.mEventTargetAtParent = shadowHost;
}
return NS_OK;
}