Class GeUndoEvent

The undo history changed (EventListenerIf.onUndoStackChanged, wrapper event undoStackChanged): enough to enable and label own buttons ("Undo Paste").

Example

const listener = new EventAdapter();
listener.onUndoStackChanged = (evt: GeUndoEvent) => {
  undoButton.disabled = !evt.canUndo;
  undoButton.title = evt.undoLabel ? `Undo ${evt.undoLabel}` : "Undo";
};

Since

1.1.99

Hierarchy

  • GeUndoEvent

Constructors

constructor

Properties

canRedo canUndo redoLabel size undoLabel

Constructors

constructor

  • Parameters

    • canUndo: boolean

      a step can be undone

    • canRedo: boolean

      a step can be redone

    • undoLabel: undefined | string

      the label of the step undo takes ("Edit", "Paste" …)

    • redoLabel: undefined | string

      the label of the step redo takes

    • size: number

      steps on the undo stack

    Returns GeUndoEvent

Properties

Readonly canRedo

canRedo: boolean

a step can be redone

Readonly canUndo

canUndo: boolean

a step can be undone

Readonly redoLabel

redoLabel: undefined | string

the label of the step redo takes

Readonly size

size: number

steps on the undo stack

Readonly undoLabel

undoLabel: undefined | string

the label of the step undo takes ("Edit", "Paste" …)

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