Unified undo/redo queue

[user1823]

The Redo option added in alpha 6 only works for undo actions performed from the Reviewer; it doesn't work if an answer was undone from the Decks page or the Browser.

This means that there are separate undo/redo queues for the Reviewer and Browser. I think that it will be better if the same queue is used for both so that actions performed anywhere in the app can be reversed from everywhere.

[mikehardy]

@dae I think this may be related to previous backend-related undo/redo work. I'm a little out of touch here though - thus the tag and question - I think the base thought here is correct and we may have a backend undo/redo queue and an AnkiDroid-level undo/redo queue at the moment? 😬

[dae]

This was broken by https://github.com/ankidroid/Anki-Android/issues/14538, as performing any collection modification clears the redo queue. @lukstbit, I suggest switching to the backend's customStudyDefaults(), and using .available*. You can then remove the manual SQL in StudyOptionsFragment, and probably totalRev/NewForCurrentDeck() and updateValuesFromDeck() as well.

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[user1823]

Still looking for a solution...

[david-allison]

@user1823 if you have time, could you come to Discord, or send me an email regarding your priorities for 2.18? Would be great to know where your priorities lie

Discord: https://discord.gg/qjzcRTx Email: davidallisongithub (gmail)