public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (value is string stringValue)
{
TypeConverterHelper currentHelper = helper;
if (currentHelper == null)
{
IDestinationTypeProvider targetService = context.GetService(typeof(IDestinationTypeProvider)) as IDestinationTypeProvider;
Type targetType = targetService.GetDestinationType();
if (!this.helpers.Value.TryGetValue(targetType, out currentHelper))
{
currentHelper = GetTypeConverterHelper(targetType, this.baseType, this.helperType);
if (!this.helpers.Value.TryAdd(targetType, currentHelper))
{
if (!this.helpers.Value.TryGetValue(targetType, out currentHelper))
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.TypeConverterHelperCacheAddFailed(targetType)));
}
}
}
}
object result = currentHelper.UntypedConvertFromString(stringValue, context);
return(result);
}
return(base.ConvertFrom(context, culture, value));
}
internal static void GetRootObjectAndDelegateType(ITypeDescriptorContext context, out object rootObject, out Type delegateType)
{
rootObject = null;
delegateType = null;
if (context == null)
{
return;
}
IRootObjectProvider rootObjectService = context.GetService(typeof(IRootObjectProvider)) as IRootObjectProvider;
if (rootObjectService == null)
{
return;
}
rootObject = rootObjectService.RootObject;
IDestinationTypeProvider targetService = context.GetService(typeof(IDestinationTypeProvider)) as IDestinationTypeProvider;
if (targetService == null)
{
return;
}
delegateType = targetService.GetDestinationType();
}
void Initialize(PrefixLookup prefixLookup, XamlSchemaContext schemaContext, Func <IAmbientProvider> ambientProvider, IProvideValueTarget provideValue, IRootObjectProvider rootProvider, IDestinationTypeProvider destinationProvider, IXamlObjectWriterFactory objectWriterFactory)
{
prefix_lookup = prefixLookup ?? throw new ArgumentNullException("prefixLookup");
sctx = schemaContext ?? throw new ArgumentNullException("schemaContext");
_ambientProviderProvider = ambientProvider;
this.provideValue = provideValue;
this.rootProvider = rootProvider;
this.destinationProvider = destinationProvider;
this.objectWriterFactory = objectWriterFactory;
}
public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value)
{
if (value.GetType() == typeof(string))
{
IDestinationTypeProvider targetService = context.GetService(typeof(IDestinationTypeProvider)) as IDestinationTypeProvider;
Type targetType = targetService.GetDestinationType();
return(Activator.CreateInstance(targetType));
}
return(base.ConvertFrom(context, culture, value));
}
public ValueSerializerContext (PrefixLookup prefixLookup, XamlSchemaContext schemaContext, IAmbientProvider ambientProvider, IProvideValueTarget provideValue, IRootObjectProvider rootProvider, IDestinationTypeProvider destinationProvider)
{
if (prefixLookup == null)
throw new ArgumentNullException ("prefixLookup");
if (schemaContext == null)
throw new ArgumentNullException ("schemaContext");
prefix_lookup = prefixLookup;
namespace_resolver = new NamespaceResolver (prefix_lookup.Namespaces);
type_resolver = new XamlTypeResolver (namespace_resolver, schemaContext);
sctx = schemaContext;
ambient_provider = ambientProvider;
this.provideValue = provideValue;
this.rootProvider = rootProvider;
this.destinationProvider = destinationProvider;
}
public ValueSerializerContext(PrefixLookup prefixLookup, XamlSchemaContext schemaContext, IAmbientProvider ambientProvider, IProvideValueTarget provideValue, IRootObjectProvider rootProvider, IDestinationTypeProvider destinationProvider, IXamlObjectWriterFactory objectWriterFactory)
{
if (prefixLookup == null)
{
throw new ArgumentNullException("prefixLookup");
}
if (schemaContext == null)
{
throw new ArgumentNullException("schemaContext");
}
prefix_lookup = prefixLookup;
sctx = schemaContext;
ambient_provider = ambientProvider;
this.provideValue = provideValue;
this.rootProvider = rootProvider;
this.destinationProvider = destinationProvider;
this.objectWriterFactory = objectWriterFactory;
}
internal static void GetRootObjectAndDelegateType(ITypeDescriptorContext context, out object rootObject, out Type delegateType)
{
rootObject = null;
delegateType = null;
if (context != null)
{
IRootObjectProvider service = context.GetService(typeof(IRootObjectProvider)) as IRootObjectProvider;
if (service != null)
{
rootObject = service.RootObject;
IDestinationTypeProvider provider2 = context.GetService(typeof(IDestinationTypeProvider)) as IDestinationTypeProvider;
if (provider2 != null)
{
delegateType = provider2.GetDestinationType();
}
}
}
}
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (value is string path)
{
IValueSerializerContext valueSerializerContext = (IValueSerializerContext)context;
IXamlSchemaContextProvider xamlSchemaContextProvider = valueSerializerContext.GetRequiredService <IXamlSchemaContextProvider>();
if (xamlSchemaContextProvider.SchemaContext is ContentManager.InternalXamlSchemaContext xamlSchemaContext)
{
IDestinationTypeProvider destinationTypeProvider = valueSerializerContext.GetRequiredService <IDestinationTypeProvider>();
Type type = destinationTypeProvider.GetDestinationType();
return(xamlSchemaContext.ContentManager.DeserializeAsync(path, type, xamlSchemaContext.ParentReference, null).Result);
}
}
return(base.ConvertFrom(context, culture, value));
}
public ValueSerializerContext(PrefixLookup prefixLookup, XamlSchemaContext schemaContext, IAmbientProvider ambientProvider, IProvideValueTarget provideValue, IRootObjectProvider rootProvider, IDestinationTypeProvider destinationProvider)
{
if (prefixLookup == null)
{
throw new ArgumentNullException("prefixLookup");
}
if (schemaContext == null)
{
throw new ArgumentNullException("schemaContext");
}
prefix_lookup = prefixLookup;
namespace_resolver = new NamespaceResolver(prefix_lookup.Namespaces);
type_resolver = new XamlTypeResolver(namespace_resolver, schemaContext);
sctx = schemaContext;
ambient_provider = ambientProvider;
this.provideValue = provideValue;
this.rootProvider = rootProvider;
this.destinationProvider = destinationProvider;
}
public static ValueSerializerContext Create(PrefixLookup prefixLookup, XamlSchemaContext schemaContext, Func <IAmbientProvider> ambientProvider, IProvideValueTarget provideValue, IRootObjectProvider rootProvider, IDestinationTypeProvider destinationProvider, IXamlObjectWriterFactory objectWriterFactory)
{
var context = new ValueSerializerContext();
context.Initialize(prefixLookup, schemaContext, ambientProvider, provideValue, rootProvider, destinationProvider, objectWriterFactory);
return(context);
}
public static ValueSerializerContext Create(PrefixLookup prefixLookup, XamlSchemaContext schemaContext, IAmbientProvider ambientProvider, IProvideValueTarget provideValue, IRootObjectProvider rootProvider, IDestinationTypeProvider destinationProvider, IXamlObjectWriterFactory objectWriterFactory)
{
#if !HAS_TYPE_CONVERTER
ValueSerializerContext context;
var type = GetValueSerializerType();
if (type != null)
{
context = Activator.CreateInstance(type) as ValueSerializerContext;
}
else
{
context = new ValueSerializerContext();
}
#else
var context = new ValueSerializerContext();
#endif
context.Initialize(prefixLookup, schemaContext, ambientProvider, provideValue, rootProvider, destinationProvider, objectWriterFactory);
return(context);
}
