Class HistoryManager

constructor

• new HistoryManager(maxSteps?: number): HistoryManager

  Parameters

  • maxSteps: number = 50

  Returns HistoryManager

Readonlylisteners

maxSteps

ReadonlyredoStack

ReadonlyundoStack

canRedo

• get canRedo(): boolean

  Returns boolean

canUndo

• get canUndo(): boolean

  Returns boolean

clearRedoStack

• clearRedoStack(): void

  Returns void

commit

• commit(action: HistoryAction): void

  Parameters

  • action: HistoryAction

  Returns void

notify

• notify(): void

  Returns void

redo

• redo(): void

  Returns void

subscribe

• subscribe(fn: () => void): () => boolean

  Parameters

  • fn: () => void

  Returns () => boolean

undo

• undo(): void

  Returns void