diff options
Diffstat (limited to 'dom/base/FragmentOrElement.cpp')
| -rw-r--r-- | dom/base/FragmentOrElement.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/dom/base/FragmentOrElement.cpp b/dom/base/FragmentOrElement.cpp index 79f6cff51..fde983e7c 100644 --- a/dom/base/FragmentOrElement.cpp +++ b/dom/base/FragmentOrElement.cpp @@ -608,6 +608,7 @@ FragmentOrElement::nsDOMSlots::Unlink(bool aIsXUL) mLabelsList = nullptr; mCustomElementData = nullptr; mClassList = nullptr; + mRegisteredIntersectionObservers.Clear(); } size_t @@ -1359,6 +1360,13 @@ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(FragmentOrElement) { nsDOMSlots *slots = tmp->GetExistingDOMSlots(); if (slots) { + if (tmp->IsElement()) { + Element* elem = tmp->AsElement(); + for (auto iter = slots->mRegisteredIntersectionObservers.Iter(); !iter.Done(); iter.Next()) { + DOMIntersectionObserver* observer = iter.Key(); + observer->UnlinkTarget(*elem); + } + } slots->Unlink(tmp->IsXULElement()); } } @@ -1937,7 +1945,6 @@ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END NS_INTERFACE_MAP_BEGIN(FragmentOrElement) NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY NS_INTERFACE_MAP_ENTRIES_CYCLE_COLLECTION(FragmentOrElement) - NS_INTERFACE_MAP_ENTRY(Element) NS_INTERFACE_MAP_ENTRY(nsIContent) NS_INTERFACE_MAP_ENTRY(nsINode) NS_INTERFACE_MAP_ENTRY(nsIDOMEventTarget) |