Struct zng_ext_undo::UndoTransaction

pub struct UndoTransaction { /* private fields */ }

Represents captured undo actions in an UNDO.transaction operation.

Implementations

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.