Is it possible to clear undo / redo stack?

[Sueloo]

Hi,

Thanks for a great plugin! Is it possible to clear the undo / redo stack?

[mlnmln]

hi @Sueloo ,

sorry for not getting back earlier, we recently moved the repository and missed a couple of notifications.

[andrewbeng89]

@Sueloo thanks for your question 👍and apologies for the late reply. At the moment, this feature is not available, but should be relatively straightforward to implement.

To get started, could you please confirm whether the criteria for this feature:

• The clear function will be triggered by a noop action called [optional-namespace/]clear
• If there are mutations remaining in the done stack, clear will undo these mutations (without adding them to the undone stack), and all necessary undoCallbacks will be called
• If there are mutations remaining in the undone stack, clear will set undone to an empty stack

[ma7moudat]

Hey @andrewbeng89 !
I have a similar use case and an implementation of your specification would be just what I need. Is there a plan to include this in upcoming releases?

[andrewbeng89]

Hi @ma7moudat thanks for the feedback on this enhancement to the plugin. I will be creating some test specs for the feature shortly.

One thing I'd like to clarify about the new feature is the difference between clear and reset (also yet to be implemented):

• clear implies that the state of the store will be reinitialised to its original state, i.e. the state when no mutations had been applied
• reset implies that the state of the store will remain the same at this point, but undo/redo stacks are emptied, i.e. the subsequent undo after the next mutation will return the state of the store to the state when reset was called

[ma7moudat]

wow! thanks a lot for the quick response and implementation @andrewbeng89 ❤️
and you're right, clear and reset are both needed... in my case reset would be more relevant, since I'm working on forms with undo/redo functionality and the user should be able to reset the form to repopulate the original values without emptying the state (which clear does from your description)

[andrewbeng89]

Thanks @ma7moudat! The next steps would be to work on some tests for reset, followed by implementation ;)