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Bug 1396584 - Remove support for multiple ShadowRoots

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Tag #1375
This commit is contained in:
Matt A. Tobin 2020-04-17 06:34:38 -04:00 • committed by Roy Tam
commit 5917636e83
44 changed files with 334 additions and 1955 deletions
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25
dom/base/FragmentOrElement.cpp
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@ -861,23 +861,10 @@ nsIContent::GetEventTargetParent(EventChainPreVisitor& aVisitor)
// for destination insertion points where nodes have been distributed.
nsTArray<nsIContent*>* destPoints = GetExistingDestInsertionPoints();
if (destPoints && !destPoints->IsEmpty()) {
// Push destination insertion points to aVisitor.mDestInsertionPoints
// excluding shadow insertion points.
bool didPushNonShadowInsertionPoint = false;
// Push destination insertion points to aVisitor.mDestInsertionPoints.
for (uint32_t i = 0; i < destPoints->Length(); i++) {
nsIContent* point = destPoints->ElementAt(i);
if (!ShadowRoot::IsShadowInsertionPoint(point)) {
aVisitor.mDestInsertionPoints.AppendElement(point);
didPushNonShadowInsertionPoint = true;
}
}
// Next node in the event path is the final destination
// (non-shadow) insertion point that was pushed.
if (didPushNonShadowInsertionPoint) {
parent = aVisitor.mDestInsertionPoints.LastElement();
aVisitor.mDestInsertionPoints.SetLength(
aVisitor.mDestInsertionPoints.Length() - 1);
aVisitor.mDestInsertionPoints.AppendElement(point);
}
}
@ -901,10 +888,7 @@ nsIContent::GetEventTargetParent(EventChainPreVisitor& aVisitor)
aVisitor.mDestInsertionPoints.SetLength(
aVisitor.mDestInsertionPoints.Length() - 1);
} else {
// The pool host for the youngest shadow root is shadow DOM host,
// for older shadow roots, it is the shadow insertion point
// where the shadow root is projected, nullptr if none exists.
parent = thisShadowRoot->GetPoolHost();
parent = thisShadowRoot->GetHost();
}
}
@ -2407,9 +2391,8 @@ FragmentOrElement::SetIsElementInStyleScopeFlagOnShadowTree(bool aInStyleScope)
NS_ASSERTION(IsElement(), "calling SetIsElementInStyleScopeFlagOnShadowTree "
"on a non-Element is useless");
ShadowRoot* shadowRoot = GetShadowRoot();
while (shadowRoot) {
if (shadowRoot) {
shadowRoot->SetIsElementInStyleScopeFlagOnSubtree(aInStyleScope);
shadowRoot = shadowRoot->GetOlderShadowRoot();
}
}