already_AddRefed<Promise> MediaDevices::GetDisplayMedia(
const DisplayMediaStreamConstraints& aConstraints, CallerType aCallerType,
ErrorResult& aRv) {
RefPtr<Promise> p = Promise::Create(GetParentObject(), aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
RefPtr<MediaDevices> self(this);
MediaManager::Get()
->GetDisplayMedia(GetOwner(), aConstraints, aCallerType)
->Then(GetCurrentThreadSerialEventTarget(), __func__,
[this, self, p](RefPtr<DOMMediaStream>&& aStream) {
if (!GetWindowIfCurrent()) {
return; // leave promise pending after navigation.
}
p->MaybeResolve(std::move(aStream));
},
[this, self, p](RefPtr<MediaMgrError>&& error) {
nsPIDOMWindowInner* window = GetWindowIfCurrent();
if (!window) {
return; // leave promise pending after navigation.
}
p->MaybeReject(MakeRefPtr<MediaStreamError>(window, *error));
});
return p.forget();
}
nsIDocument*
DOMEventTargetHelper::GetDocumentIfCurrent() const
{
nsPIDOMWindowInner* win = GetWindowIfCurrent();
if (!win) {
return nullptr;
}
return win->GetDoc();
}
