/** * RemoveCommand for undoing removal */ export class RemoveCommand { constructor(object, canvas) { this.object = object; this.canvas = canvas; } execute() { this.object.removedViaHistory = true; this.object.addedViaHistory = false; this.canvas.remove(this.object); } undo() { this.object.addedViaHistory = true; this.object.removedViaHistory = false; this.object.commandName = this.constructor.name; this.canvas.add(this.object); } }