def onUndo(self) -> None:
n = self.col.undoName()
if not n:
return
cid = self.col.undo()
if cid and self.state == "review":
card = self.col.getCard(cid)
self.col.sched.reset()
self.reviewer.cardQueue.append(card)
self.reviewer.nextCard()
gui_hooks.review_did_undo(cid)
else:
self.reset()
tooltip(_("Reverted to state prior to '%s'.") % n.lower())
gui_hooks.state_did_revert(n)
self.maybeEnableUndo()
def _legacy_undo(*, parent: QWidget) -> None:
from aqt import mw
assert mw
assert mw.col
reviewing = mw.state == "review"
just_refresh_reviewer = False
result = mw.col.undo_legacy()
if result is None:
# should not happen
showInfo("nothing to undo", parent=parent)
mw.update_undo_actions()
return
elif isinstance(result, LegacyReviewUndo):
name = tr.scheduling_review()
if reviewing:
# push the undone card to the top of the queue
cid = result.card.id
card = mw.col.get_card(cid)
mw.reviewer.cardQueue.append(card)
gui_hooks.review_did_undo(cid)
just_refresh_reviewer = True
elif isinstance(result, LegacyCheckpoint):
name = result.name
else:
assert_exhaustive(result)
assert False
if just_refresh_reviewer:
mw.reviewer.nextCard()
else:
# full queue+gui reset required
mw.reset()
tooltip(tr.undo_action_undone(action=name), parent=parent)
gui_hooks.state_did_revert(name)
mw.update_undo_actions()