KSLCore/ksl.utilities.editor/UndoableOperation

UndoableOperation

data class UndoableOperation(val description: String, val undo: () -> Unit, val redo: () -> Unit)(source)

A single reversible change pushed onto an UndoStack. The caller is expected to perform the change before pushing the operation; undo reverts that change, redo re-applies it.

Constructors

UndoableOperation

constructor(description: String, undo: () -> Unit, redo: () -> Unit)

Properties

description

val description: String

human-readable label for menu items like "Undo Add Scenario". Free-form; the editor decides whether to prefix "Undo " / "Redo " in its menu rendering.

redo

val redo: () -> Unit

invoked when the user asks to redo it after a prior undo.

undo

val undo: () -> Unit

invoked when the user asks to undo this operation.