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Bug 1419305 - Part 2: Keep processing remaining elements in ElementQueue even if some of elements are already unlinked

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Tag UXP Issue #1344
This commit is contained in:
Gaming4JC 2020-01-22 21:22:36 -05:00 • committed by Roy Tam
commit 506795f384
1 changed files with 5 additions and 4 deletions
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9
dom/base/CustomElementRegistry.cpp
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@ -1034,6 +1034,8 @@ CustomElementReactionsStack::InvokeBackupQueue()
// we don't need to pass global object for error reporting.
InvokeReactions(&mBackupQueue, nullptr);
}
MOZ_ASSERT(mBackupQueue.IsEmpty(),
"There are still some reactions in BackupQueue not being consumed!?!");
}
void
@ -1050,15 +1052,14 @@ CustomElementReactionsStack::InvokeReactions(ElementQueue* aElementQueue,
for (uint32_t i = 0; i < aElementQueue->Length(); ++i) {
Element* element = aElementQueue->ElementAt(i);
if (!element) {
continue;
}
// ElementQueue hold a element's strong reference, it should not be a nullptr.
MOZ_ASSERT(element);
RefPtr<CustomElementData> elementData = element->GetCustomElementData();
if (!elementData) {
// This happens when the document is destroyed and the element is already
// unlinked, no need to fire the callbacks in this case.
return;
continue;
}
auto& reactions = elementData->mReactionQueue;