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Issue #2240 - Align Microtasks and promises scheduling with spec

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Microtasks, resolved Promises and Observers are handled after the sync
task that caused them, in the order they were generated.
Also simplifies reentrancy handling.

Based-on: m-c 1193394
This commit is contained in:
Martok 2024-01-05 17:19:42 +01:00 • committed by roytam1
commit f059bb0a59
23 changed files with 260 additions and 347 deletions
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17
dom/base/nsContentUtils.cpp
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@ -5418,10 +5418,10 @@ nsContentUtils::RunInStableState(already_AddRefed<nsIRunnable> aRunnable)
/* static */
void
nsContentUtils::RunInMetastableState(already_AddRefed<nsIRunnable> aRunnable)
nsContentUtils::AddPendingIDBTransaction(already_AddRefed<nsIRunnable> aTransaction)
{
MOZ_ASSERT(CycleCollectedJSContext::Get(), "Must be on a script thread!");
CycleCollectedJSContext::Get()->RunInMetastableState(Move(aRunnable));
CycleCollectedJSContext::Get()->AddPendingIDBTransaction(Move(aTransaction));
}
/*
@ -6472,9 +6472,16 @@ nsContentUtils::IsSubDocumentTabbable(nsIContent* aContent)
contentViewer->GetPreviousViewer(getter_AddRefs(zombieViewer));
// If there are 2 viewers for the current docshell, that
// means the current document is a zombie document.
// Only navigate into the subdocument if it's not a zombie.
return !zombieViewer;
// means the current document may be a zombie document.
// While load and pageshow events are dispatched, zombie viewer is the old,
// to be hidden document.
if (zombieViewer) {
bool inOnLoad = false;
docShell->GetIsExecutingOnLoadHandler(&inOnLoad);
return inOnLoad;
}
return true;
}
bool