private static DependencyProperty RegisterServiceProperty(string name, Type type)
{
var defaultValue = RuntimeUtils.CreateDefaultValue(type);
var propertyMetadata = new PropertyMetadata(defaultValue, OnServicePropertyValueChanged);
return(DependencyPropertyManager.RegisterAttached(name, type, typeof(DependencyPropertyManager), propertyMetadata));
}
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
var targetType = typeof(TTo);
if (value == null)
{
return(RuntimeUtils.CreateDefaultValue(targetType));
}
var sourceType = value.GetType();
return(PrimitiveConverterFactory.GetConverter(sourceType, targetType).Convert(value));
}
public override object ProvideValue(IServiceProvider serviceProvider)
{
object target;
object targetProperty;
bool reflected;
GetTarget(serviceProvider, out target, out targetProperty, out reflected);
var targetProxy = target as ISkinResourceKey;
if (targetProxy != null)
{
var propertyName = (targetProperty as PropertyInfo)?.Name;
if (propertyName == null)
{
return(null);
}
targetProxy.SetResourceKey(propertyName, Key);
}
var propertyInfo = targetProperty as PropertyInfo;
if (propertyInfo != null)
{
return(RuntimeUtils.CreateDefaultValue(propertyInfo.PropertyType));
}
var dependencyProperty = targetProperty as DependencyProperty;
if (dependencyProperty != null)
{
return(RuntimeUtils.CreateDefaultValue(dependencyProperty.GetPropertyType()));
}
return(null);
}
protected object DefaultPropertyValue(IServiceProvider serviceProvider)
{
object target;
object targetProperty;
bool reflected;
GetTarget(serviceProvider, out target, out targetProperty, out reflected);
var propertyInfo = targetProperty as PropertyInfo;
if (propertyInfo != null)
{
return(RuntimeUtils.CreateDefaultValue(propertyInfo.PropertyType));
}
var dependencyProperty = targetProperty as DependencyProperty;
if (dependencyProperty != null)
{
return(RuntimeUtils.CreateDefaultValue(dependencyProperty.GetPropertyType()));
}
return(null);
}
protected override object ConvertCore(object value, Type targetType, object parameter, CultureInfo culture)
{
return(targetType.IsValueType && (value == null || value.IsDependencyPropertyUnsetValue() || value.IsUnset()) ? RuntimeUtils.CreateDefaultValue(targetType) : value);
}
public static object CreateDefaultValue(this Type type)
{
return(RuntimeUtils.CreateDefaultValue(type));
}
private object GetDefaultValue(object targetProperty)
{
var propertyType = GetPropertyType(targetProperty);
return(propertyType == null ? null : RuntimeUtils.CreateDefaultValue(propertyType));
}
