public static object ToNative(CefV8Value obj, Type targetType)
{
if (obj == null)
{
throw new ArgumentNullException("obj");
}
if (targetType == null)
{
throw new ArgumentNullException("targetType");
}
object retVal = null;
if ((targetType == typeof(JObject) && obj.IsObject) ||
(targetType == typeof(JArray) && obj.IsArray) ||
targetType == typeof(JValue) ||
targetType == typeof(JToken))
{
retVal = CefJsonValueConverter.ToJToken(obj);
}
else if (!obj.IsNull && !obj.IsUndefined)
{
if (obj.IsBool)
{
retVal = obj.GetBoolValue();
}
else if (obj.IsDouble || obj.IsInt || obj.IsUInt)
{
// CEF doesn't have a long data type so they are treated as doubles
// To avoid overflow scenarios, IsDouble must be checked before IsInt because flags will be true
retVal = obj.GetDoubleValue();
}
else if (obj.IsString)
{
retVal = obj.GetStringValue();
}
else if (obj.IsDate)
{
retVal = obj.GetDateValue();
}
else if (obj.IsArray)
{
if (targetType.IsArray)
{
if (targetType.GetArrayRank() != 1)
{
throw new Exception("Cannot handle multidimensional arrays");
}
var v8ArrayLength = obj.GetArrayLength();
var elementType = targetType.GetElementType();
var array = Array.CreateInstance(elementType, v8ArrayLength);
for (var v8ArrayIndex = 0; v8ArrayIndex < v8ArrayLength; ++v8ArrayIndex)
{
var elementToken = ToNative(obj.GetValue(v8ArrayIndex), elementType);
array.SetValue(elementToken, v8ArrayIndex);
}
retVal = array;
}
}
else if (obj.IsObject)
{
var pluginAdapter = V8PluginAdapter.FromCefObject(obj);
if (pluginAdapter != null)
{
throw new Exception("Passing plugins as parameters not yet supported");
}
var converter = GetTypeConverter(targetType);
if (converter != null)
{
retVal = converter.ToNative(obj);
}
}
else if (obj.IsFunction)
{
// TODO : Throw an exception?
}
if (retVal != null && !targetType.IsInstanceOfType(retVal))
{
retVal = Convert.ChangeType(retVal, targetType);
}
}
return(retVal);
}
public static CefV8Value ToCef(object nativeObject, Type type)
{
if (nativeObject == null)
{
if (type != null && type == typeof(void))
{
return(CefV8Value.CreateUndefined());
}
return(CefV8Value.CreateNull());
}
if (nativeObject is bool)
{
return(CefV8Value.CreateBool((bool)nativeObject));
}
var stringValue = nativeObject as string;
if (stringValue != null)
{
return(CefV8Value.CreateString(stringValue));
}
if (nativeObject is int || nativeObject is byte ||
nativeObject is ushort || nativeObject is sbyte ||
nativeObject is short || nativeObject is char)
{
return(CefV8Value.CreateInt(Convert.ToInt32(nativeObject)));
}
if (nativeObject is double || nativeObject is decimal ||
nativeObject is long || nativeObject is uint ||
nativeObject is ulong || nativeObject is float)
{
return(CefV8Value.CreateDouble(Convert.ToDouble(nativeObject)));
}
var nativeArray = nativeObject as Array;
if (nativeArray != null)
{
var cefArray = CefV8Value.CreateArray(nativeArray.Length);
for (var i = 0; i < nativeArray.Length; i++)
{
var nativeArrayItem = nativeArray.GetValue(i);
var cefArrayItem = ToCef(nativeArrayItem, null);
cefArray.SetValue(i, cefArrayItem);
}
return(cefArray);
}
var jsonToken = nativeObject as JToken;
if (jsonToken != null)
{
return(CefJsonValueConverter.ToCef(jsonToken));
}
if (type == null)
{
type = nativeObject.GetType();
}
var typeConverter = GetTypeConverter(type);
if (typeConverter != null)
{
return(typeConverter.ToCef(nativeObject));
}
throw new Exception(string.Format("Cannot convert '{0}' object from CLR to CEF.", type.FullName));
}
