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using System.ComponentModel;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
#if WINDOWS_UWP
namespace Xamarin.Forms.Platform.UWP
#else
namespace Xamarin.Forms.Platform.WinRT
#endif
{
public class FrameRenderer : ViewRenderer<Frame, Border>
{
public FrameRenderer()
{
AutoPackage = false;
}
protected override void OnElementChanged(ElementChangedEventArgs<Frame> e)
{
base.OnElementChanged(e);
if (e.NewElement != null)
{
if (Control == null)
SetNativeControl(new Border());
PackChild();
UpdateBorder();
UpdateCornerRadius();
}
}
protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged(sender, e);
if (e.PropertyName == "Content")
{
PackChild();
}
else if (e.PropertyName == Frame.OutlineColorProperty.PropertyName || e.PropertyName == Frame.HasShadowProperty.PropertyName)
{
UpdateBorder();
}
else if (e.PropertyName == Frame.CornerRadiusProperty.PropertyName)
{
UpdateCornerRadius();
}
}
void PackChild()
{
if (Element.Content == null)
return;
IVisualElementRenderer renderer = Element.Content.GetOrCreateRenderer();
Control.Child = renderer.ContainerElement;
}
void UpdateBorder()
{
if (Element.OutlineColor != Color.Default)
{
Control.BorderBrush = Element.OutlineColor.ToBrush();
Control.BorderThickness = new Windows.UI.Xaml.Thickness(1);
}
else
{
Control.BorderBrush = new Color(0, 0, 0, 0).ToBrush();
}
}
void UpdateCornerRadius()
{
float cornerRadius = Element.CornerRadius;
if (cornerRadius == -1f)
cornerRadius = 5f; // default corner radius
Control.CornerRadius = new CornerRadius(cornerRadius);
}
}
}
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