/// <summary>
/// When down key is pressed, selected element should move forward.
/// When up key is pressed, selected element should move back.
/// </summary>
public void MoveSelection(Direction direction)
{
var oldItem = FilteredResults.FirstOrDefault(item => item.IsSelected);
if (oldItem == null)
{
return;
}
int newItemIndex = FilteredResults.IndexOf(oldItem);
if ((newItemIndex <= 0 && direction == Direction.Up) ||
(newItemIndex >= FilteredResults.Count() - 1 && direction == Direction.Down))
{
return;
}
if (direction == Direction.Down)
{
newItemIndex++;
}
else
{
newItemIndex--;
}
oldItem.IsSelected = false;
var newItem = FilteredResults.ElementAt(newItemIndex);
newItem.IsSelected = true;
}
/// <summary>
/// Executes selected item in search UI.
/// </summary>
public void ExecuteSelectedItem()
{
var selected = FilteredResults.FirstOrDefault(item => item.IsSelected);
if (selected != null)
{
selected.ClickedCommand.Execute(null);
}
}
