public async Task ChildrenCanOnlyBeActiveWhenConductorIsActivated()
{
var conductor = new Conductor <IScreen> .Collection.AllActive();
var conducted = new Screen();
conductor.Items.Add(conducted);
await conductor.ActivateItemAsync(conducted, CancellationToken.None);
Assert.False(conducted.IsActive);
}
public async Task ChildrenAreActivatedIfConductorIsActive()
{
var conductor = new Conductor <IScreen> .Collection.OneActive();
var conducted = new Screen();
conductor.Items.Add(conducted);
await((IActivate)conductor).ActivateAsync(CancellationToken.None);
await conductor.ActivateItemAsync(conducted);
Assert.True(conducted.IsActive);
Assert.Equal(conducted, conductor.ActiveItem);
}
public async Task ChildrenAreNotActivatedJustBecauseConductorIsActivated()
{
var conductor = new Conductor <IScreen> .Collection.OneActive();
var conducted = new Screen();
conductor.Items.Add(conducted);
await((IActivate)conductor).ActivateAsync(CancellationToken.None);
Assert.False(conducted.IsActive);
Assert.NotEqual(conducted, conductor.ActiveItem);
// For OneActive the ActiveItem needs to be explicitly set for it to activate
await conductor.ActivateItemAsync(conducted, CancellationToken.None);
Assert.True(conducted.IsActive);
Assert.Equal(conducted, conductor.ActiveItem);
}
public static async Task <T> ActivateViewModelOf <T>(
[NotNull] this Conductor <IMessageDetailItem> .Collection.OneActive conductor)
{
if (conductor == null)
{
throw new ArgumentNullException(nameof(conductor));
}
var item = conductor?.Items.FirstOrDefault(s => s.GetType() == typeof(T));
if (item != null)
{
await conductor.ActivateItemAsync(item);
return((T)item);
}
return(default(T));
}
