/// <summary>
/// Activates the specified item.
/// </summary>
/// <param name="item">The item to activate.</param>
/// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>
/// <returns>A task that represents the asynchronous operation.</returns>
public override async Task ActivateItemAsync(T item, CancellationToken cancellationToken = default)
{
if (item != null && item.Equals(ActiveItem))
{
if (IsActive)
{
await ScreenExtensions.TryActivateAsync(item, cancellationToken);
OnActivationProcessed(item, true);
}
return;
}
await ChangeActiveItemAsync(item, false, cancellationToken);
}
/// <summary>
/// Activates the specified item.
/// </summary>
/// <param name="item">The item to activate.</param>
/// <param name="cancellationToken">The cancellation token to cancel operation.</param>
/// <returns>A task that represents the asynchronous operation.</returns>
public override async Task ActivateItemAsync(T item, CancellationToken cancellationToken)
{
if (item == null)
{
return;
}
item = EnsureItem(item);
if (IsActive)
{
await ScreenExtensions.TryActivateAsync(item, cancellationToken);
}
OnActivationProcessed(item, true);
}
/// <inheritdoc />
public override async Task ActivateItemAsync(T item, CancellationToken cancellationToken = default)
{
if (item != null && item.Equals(ActiveItem))
{
if (IsActive)
{
await ScreenExtensions.TryActivateAsync(item, cancellationToken);
OnActivationProcessed(item, true);
}
return;
}
var closeResult = await CloseStrategy.ExecuteAsync(new[] { ActiveItem }, cancellationToken);
if (closeResult.CloseCanOccur)
{
await ChangeActiveItemAsync(item, true, cancellationToken);
}
else
{
OnActivationProcessed(item, false);
}
}
/// <summary>
/// Called when activating.
/// </summary>
/// <param name="cancellationToken">The cancellation token to cancel operation.</param>
/// <returns>A task that represents the asynchronous operation.</returns>
protected override Task OnActivateAsync(CancellationToken cancellationToken)
{
return(ScreenExtensions.TryActivateAsync(ActiveItem, cancellationToken));
}
