public ElementRenderer GetRenderer(UIElement element)
{
var elementRenderer = element.ElementRenderer;
if (elementRenderer == null)
{
// try to get the renderer from the user registered class factory
var currentType = element.GetType();
while (elementRenderer == null && currentType != null)
{
if (typesToUserFactories.ContainsKey(currentType))
{
elementRenderer = typesToUserFactories[currentType].TryCreateRenderer(element);
}
currentType = currentType.GetTypeInfo().BaseType;
}
// try to get the renderer from the default renderer factory.
if (elementRenderer == null && defaultFactory != null)
{
elementRenderer = defaultFactory.TryCreateRenderer(element);
}
if (elementRenderer == null)
{
throw new InvalidOperationException(string.Format("No renderer found for element {0}", element));
}
// cache the renderer for future uses.
element.ElementRenderer = elementRenderer;
}
return(elementRenderer);
}
public ElementRenderer GetRenderer(UIElement element)
{
ElementRenderer elementRenderer;
elementIdToRenderer.TryGetValue(element.Id, out elementRenderer);
if (elementRenderer == null)
{
// try to get the renderer from the user registered class factory
var currentType = element.GetType();
while (elementRenderer == null && currentType != null)
{
if (typesToUserFactories.TryGetValue(currentType, out var rendererFactory))
{
elementRenderer = rendererFactory.TryCreateRenderer(element);
}
currentType = currentType.GetTypeInfo().BaseType;
}
// try to get the renderer from the default renderer factory.
if (elementRenderer == null && defaultFactory != null)
{
elementRenderer = defaultFactory.TryCreateRenderer(element);
}
if (elementRenderer == null)
{
throw new InvalidOperationException($"No renderer found for element {element}");
}
// cache the renderer for future uses.
elementIdToRenderer[element.Id] = elementRenderer;
}
return(elementRenderer);
}
