private TimeSpan UpdateTarget(int initialSourceValue, string initialTargetValue, string newTargetValue, TimeSpan steppingDuration)
{
bool updatedToFinalValue = false;
_sourceObject.Value = initialSourceValue;
var textBox = new TextBox {
Text = initialTargetValue
};
var binder = new SteppedBinder(textBox, TextBox.TextProperty, _innerBinding, steppingDuration);
var stopwatch = new Stopwatch();
binder.Changed += (_, _) =>
{
if (_sourceObject.Value.ToString() != newTargetValue)
{
return;
}
stopwatch.Stop();
updatedToFinalValue = true;
};
stopwatch.Start();
binder.SetValue(TransientBinder.TargetProperty, newTargetValue);
while (!updatedToFinalValue)
{
textBox.ProcessMessages();
}
Dispatcher.CurrentDispatcher.InvokeShutdown();
return(stopwatch.Elapsed);
}
/// <inheritdoc/>
protected override object ExtendBinding(IServiceProvider serviceProvider, DependencyObject?targetObject, DependencyProperty targetProperty)
{
if (targetObject == null)
{
return(this);
}
UpdateBindingMode(targetObject, targetProperty);
var binder = new SteppedBinder(targetObject, targetProperty, ActualBinding, SteppingDuration);
FreezableCollection <TransientBinder> binders = TransientBinder.GetBinders(targetObject);
binders.Add(binder);
return(targetObject.GetValue(targetProperty));
}
