public IEnumerable <IObservable> SetPropertyValueAfterConfirmation(SetObservablePropertyValueDelegate setValue)
{
if (setValue == null)
{
throw new ArgumentNullException(nameof(setValue));
}
var changedObjects = new List <IObservable>();
if (RequiresConfirmation(calculation))
{
if (ConfirmPropertyChange())
{
setValue();
PropertyChanged(calculation);
changedObjects.Add(calculation);
changedObjects.Add(calculationInput);
}
}
else
{
setValue();
changedObjects.Add(calculationInput);
}
return(changedObjects);
}
public void ChangePropertyAndNotify_ChangeHasAffectedObjects_AffectedObjectsNotified()
{
// Setup
SetObservablePropertyValueDelegate setAction = () => {};
var mocks = new MockRepository();
var observableA = mocks.StrictMock <IObservable>();
observableA.Expect(o => o.NotifyObservers());
var observableB = mocks.StrictMock <IObservable>();
observableB.Expect(o => o.NotifyObservers());
IObservable[] affectedObjects =
{
observableA,
observableB
};
var handler = mocks.StrictMock <IObservablePropertyChangeHandler>();
handler.Expect(h => h.SetPropertyValueAfterConfirmation(setAction)).Return(affectedObjects);
mocks.ReplayAll();
// Call
PropertyChangeHelper.ChangePropertyAndNotify(setAction, handler);
// Assert
mocks.VerifyAll();
}
/// <summary>
/// Changes the property value using the <paramref name="setPropertyDelegate"/> and then notifies the observers of the objects
/// that were affected by the change.
/// </summary>
/// <param name="setPropertyDelegate">The property change action.</param>
/// <param name="changeHandler">The handler which is responsible for determining changes due to the property change.</param>
/// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
public static void ChangePropertyAndNotify(SetObservablePropertyValueDelegate setPropertyDelegate, IObservablePropertyChangeHandler changeHandler)
{
if (setPropertyDelegate == null)
{
throw new ArgumentNullException(nameof(setPropertyDelegate));
}
if (changeHandler == null)
{
throw new ArgumentNullException(nameof(changeHandler));
}
IEnumerable <IObservable> affectedObjects = changeHandler.SetPropertyValueAfterConfirmation(setPropertyDelegate);
NotifyAffectedObjects(affectedObjects);
}
public void ChangePropertyAndNotify_ChangeHasNoAffectedObjects_HandlerUsedForSetAction()
{
// Setup
SetObservablePropertyValueDelegate setAction = () => {};
var mocks = new MockRepository();
var handler = mocks.StrictMock <IObservablePropertyChangeHandler>();
handler.Expect(h => h.SetPropertyValueAfterConfirmation(setAction)).Return(Enumerable.Empty <IObservable>());
mocks.ReplayAll();
// Call
PropertyChangeHelper.ChangePropertyAndNotify(setAction, handler);
// Assert
mocks.VerifyAll();
}
public IEnumerable <IObservable> SetPropertyValueAfterConfirmation(SetObservablePropertyValueDelegate setValue)
{
if (setValue == null)
{
throw new ArgumentNullException(nameof(setValue));
}
var affectedObjects = new List <IObservable>();
if (ConfirmPropertyChange())
{
setValue();
affectedObjects.AddRange(ClearDuneLocationCalculationOutput());
affectedObjects.Add(calculationsForTargetProbability);
}
return(affectedObjects);
}
public IEnumerable <IObservable> SetPropertyValueAfterConfirmation(SetObservablePropertyValueDelegate setValue)
{
Called = true;
setValue();
return(ReturnedAffectedObjects);
}
/// <summary>
/// Handles the property change.
/// </summary>
/// <param name="setPropertyDelegate">The property change action.</param>
/// <exception cref="ArgumentNullException">Thrown when <paramref name="setPropertyDelegate"/>
/// is <c>null</c>.</exception>
protected void HandleChangeProperty(SetObservablePropertyValueDelegate setPropertyDelegate)
{
PropertyChangeHelper.ChangePropertyAndNotify(setPropertyDelegate, propertyChangeHandler);
}