Struct zng_ext_undo :: UndoTransaction Copy item path

impl UndoTransaction

pub fn is_empty(&self) -> bool

If the transaction did not capture any undo action.

pub fn commit(self)

Push all undo actions captured by the transaction into the current undo scope.

pub fn commit_group(self, info: impl UndoInfo)

Push a single action in the current undo scope that undoes/redoes all the captured actions in the transaction.

Note that this will register a group item even if the transaction is empty.

pub fn undo(self)

Cancel the transaction, undoes all captured actions.

This is the same as dropping the transaction.

Trait Implementations§

impl Drop for UndoTransaction

fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

impl !UnwindSafe for UndoTransaction

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