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Bug 1412775 - Implement Event.composedPath

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Tag #1375
This commit is contained in:
Matt A. Tobin 2020-04-17 07:30:43 -04:00 • committed by Roy Tam
commit 2ee3ce62fc
24 changed files with 194 additions and 131 deletions
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17
dom/base/FragmentOrElement.cpp
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@ -813,6 +813,7 @@ nsIContent::GetEventTargetParent(EventChainPreVisitor& aVisitor)
// Don't propagate mouseover and mouseout events when mouse is moving
// inside chrome access only content.
bool isAnonForEvents = IsRootOfChromeAccessOnlySubtree();
aVisitor.mRootOfClosedTree = isAnonForEvents;
if ((aVisitor.mEvent->mMessage == eMouseOver ||
aVisitor.mEvent->mMessage == eMouseOut ||
aVisitor.mEvent->mMessage == ePointerOver ||
@ -834,7 +835,7 @@ nsIContent::GetEventTargetParent(EventChainPreVisitor& aVisitor)
nsIContent* adjustedTarget =
Event::GetShadowRelatedTarget(this, relatedTarget);
if (this == adjustedTarget) {
aVisitor.mParentTarget = nullptr;
aVisitor.SetParentTarget(nullptr, false);
aVisitor.mCanHandle = false;
return NS_OK;
}
@ -891,7 +892,7 @@ nsIContent::GetEventTargetParent(EventChainPreVisitor& aVisitor)
originalTarget->FindFirstNonChromeOnlyAccessContent())
? "" : "Wrong event propagation!?!\n");
#endif
aVisitor.mParentTarget = nullptr;
aVisitor.SetParentTarget(nullptr, false);
// Event should not propagate to non-anon content.
aVisitor.mCanHandle = isAnonForEvents;
return NS_OK;
@ -943,11 +944,17 @@ nsIContent::GetEventTargetParent(EventChainPreVisitor& aVisitor)
if (!aVisitor.mEvent->mFlags.mComposedInNativeAnonymousContent &&
IsRootOfNativeAnonymousSubtree() && OwnerDoc() &&
OwnerDoc()->GetWindow()) {
aVisitor.mParentTarget = OwnerDoc()->GetWindow()->GetParentTarget();
aVisitor.SetParentTarget(OwnerDoc()->GetWindow()->GetParentTarget(), true);
} else if (parent) {
aVisitor.mParentTarget = parent;
aVisitor.SetParentTarget(parent, false);
if (slot) {
ShadowRoot* root = slot->GetContainingShadow();
if (root && root->IsClosed()) {
aVisitor.mParentIsSlotInClosedTree = true;
}
}
} else {
aVisitor.mParentTarget = GetComposedDoc();
aVisitor.SetParentTarget(GetComposedDoc(), false);
}
return NS_OK;
}