UndoManager and transaction documentation
mindplay-dk opened this issue · comments
Inline documentation for UndoManager transactions is more or less non-existent.
What exactly are the transaction objects?
It appears to be an overloaded version of DOMTransaction
, e.g. with several custom properties, including scribe
, content
and previousItem
.
And it doesn't look like the scribe
property is being used? (the advanced undo plugin doesn't seem to use them either.)
Under some conditions, _lastItem
gets initialized as a full instance of one of these overloaded DOMTransaction
objects, and at other times, it's as simple as { content: '' }
, which does appear to be valid, as all properties of DOMTransaction
are optional, but with no doc-blocks and no comments, it's all very difficult to reason about.
Can you provide some pointers in this area?