/// <summary>
/// Initializes a new instance of the RatingItem class.
/// </summary>
public RatingItem()
{
#if SILVERLIGHT
this.DefaultStyleKey = typeof(RatingItem);
#endif
_interactionHelper = new InteractionHelper(this);
}
/// <summary>
/// Initializes a new instance of the RatingItem class.
/// </summary>
public RatingItem() {
#if SILVERLIGHT
this.DefaultStyleKey = typeof(RatingItem);
#endif
_interactionHelper = new InteractionHelper(this);
}
protected override void OnKeyDown(KeyEventArgs e)
{
if (!Interaction.AllowKeyDown(e))
{
return;
}
base.OnKeyDown(e);
if (e.Handled)
{
return;
}
// Some keys (e.g. Left/Right) need to be translated in RightToLeft mode
Key invariantKey = InteractionHelper.GetLogicalKey(FlowDirection, e.Key);
switch (invariantKey)
{
case Key.Left: {
#if SILVERLIGHT
RatingItem ratingItem = FocusManager.GetFocusedElement() as RatingItem;
#else
RatingItem ratingItem = FocusManager.GetFocusedElement(Application.Current.MainWindow) as RatingItem;
#endif
if (ratingItem != null)
{
ratingItem = GetRatingItemAtOffsetFrom(ratingItem, -1);
}
else
{
ratingItem = GetRatingItems().FirstOrDefault();
}
if (ratingItem != null)
{
if (ratingItem.Focus())
{
e.Handled = true;
}
}
}
break;
case Key.Right: {
#if SILVERLIGHT
RatingItem ratingItem = FocusManager.GetFocusedElement() as RatingItem;
#else
RatingItem ratingItem = FocusManager.GetFocusedElement(Application.Current.MainWindow) as RatingItem;
#endif
if (ratingItem != null)
{
ratingItem = GetRatingItemAtOffsetFrom(ratingItem, 1);
}
else
{
ratingItem = GetRatingItems().FirstOrDefault();
}
if (ratingItem != null)
{
if (ratingItem.Focus())
{
e.Handled = true;
}
}
}
break;
case Key.Add: {
if (!this.IsReadOnly)
{
RatingItem ratingItem = GetSelectedRatingItem();
if (ratingItem != null)
{
ratingItem = GetRatingItemAtOffsetFrom(ratingItem, 1);
}
else
{
ratingItem = GetRatingItems().FirstOrDefault();
}
if (ratingItem != null)
{
ratingItem.SelectValue();
e.Handled = true;
}
}
}
break;
case Key.Subtract: {
if (!this.IsReadOnly)
{
RatingItem ratingItem = GetSelectedRatingItem();
if (ratingItem != null)
{
ratingItem = GetRatingItemAtOffsetFrom(ratingItem, -1);
}
if (ratingItem != null)
{
ratingItem.SelectValue();
e.Handled = true;
}
}
}
break;
}
}
