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Revise lifetime management of IntersectionObservers.

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Tag #249
This commit is contained in:
wolfbeast 2018-12-22 02:15:50 +01:00 • committed by Roy Tam
commit 42d9f2ffb3
8 changed files with 46 additions and 26 deletions
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6
dom/base/DOMIntersectionObserver.h
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@ -106,7 +106,10 @@ class DOMIntersectionObserver final : public nsISupports,
public:
DOMIntersectionObserver(already_AddRefed<nsPIDOMWindowInner>&& aOwner,
mozilla::dom::IntersectionCallback& aCb)
: mOwner(aOwner), mCallback(&aCb), mConnected(false)
: mOwner(aOwner)
, mDocument(mOwner->GetExtantDoc())
, mCallback(&aCb)
, mConnected(false)
{
}
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
@ -164,6 +167,7 @@ protected:
double aIntersectionRatio);
nsCOMPtr<nsPIDOMWindowInner> mOwner;
RefPtr<nsIDocument> mDocument;
RefPtr<mozilla::dom::IntersectionCallback> mCallback;
RefPtr<Element> mRoot;
nsCSSRect mRootMargin;