public object Convert(object value, Type targetType, object parameter, ConverterCulture culture)
{
try
{
string streamName = value.ToString();
Stream xamlStream = null;
Task.Run(async() =>
{
xamlStream = await FileUtility.OpenApplicationStreamAsync(streamName);
}).Wait();
return(XamlHelpers.GenerateXamlFromText(xamlStream));
}
catch
{
return(null);
}
}
private void AssociatedObjectOnPreviewMouseWheel(object sender, MouseWheelEventArgs e)
{
_scrollViewer ??= XamlHelpers.FindChild <ScrollViewer>(AssociatedObject);
if (_scrollViewer == null)
{
return;
}
e.Handled = true;
if (e.Delta > 0)
{
_scrollViewer.LineUp();
}
if (e.Delta < 0)
{
_scrollViewer.LineDown();
}
}
private void AssociatedObjectOnMouseDown(object sender, MouseButtonEventArgs e)
{
if (sender == null)
{
return;
}
var possibleParent = XamlHelpers.FindParent <ListBoxItem>(sender as DependencyObject);
if (possibleParent == null)
{
return;
}
var newEvent =
new MouseButtonEventArgs(e.MouseDevice, e.Timestamp, e.ChangedButton, e.StylusDevice)
{
RoutedEvent = UIElement.MouseDownEvent, Source = sender
};
possibleParent.RaiseEvent(newEvent);
}
private void AssociatedObjectOnPreviewKeyDown(object sender, KeyEventArgs e)
{
if (sender == null)
{
return;
}
var possibleParent = XamlHelpers.FindParent <ListBox>(sender as DependencyObject);
if (possibleParent == null)
{
return;
}
var newEvent =
new KeyEventArgs(e.KeyboardDevice, e.InputSource, e.Timestamp, e.Key)
{
RoutedEvent = UIElement.KeyDownEvent, Source = sender
};
e.Handled = true;
possibleParent.RaiseEvent(newEvent);
}
protected override void OnAttached()
{
AssociatedObject.PreviewMouseWheel += AssociatedObjectOnPreviewMouseWheel;
_scrollViewer = XamlHelpers.FindChild <ScrollViewer>(AssociatedObject);
}
