public CatchOperationsFromHistoryForDelegatedPrimitive(MockTextUndoHistory history, MockTextUndoPrimitive primitive, DelegatedUndoPrimitiveState state)
{
_history = history;
_primitive = primitive;
primitive.State = state;
history.ForwardToUndoOperation(primitive);
}
public MockTextUndoHistory(MockTextUndoHistoryRegistry undoHistoryRegistry)
{
_currentTransaction = null;
UndoHistoryRegistry = undoHistoryRegistry;
_undoStack = new Stack <ITextUndoTransaction>();
_redoStack = new Stack <ITextUndoTransaction>();
_activeUndoOperationPrimitive = null;
_state = TextUndoHistoryState.Idle;
}
/// <summary>
/// This method ends the lifetime of the activeUndoOperationPrimitive and should be called after ForwardToUndoOperation.
/// </summary>
/// <param name="primitive">The previously active delegated primitive--used for sanity check.</param>
public void EndForwardToUndoOperation(MockTextUndoPrimitive primitive)
{
if (_activeUndoOperationPrimitive != primitive)
{
throw new InvalidOperationException();
}
_activeUndoOperationPrimitive = null;
}
