// public methods
/// <summary>
/// Deserializes an object from a BsonReader.
/// </summary>
/// <param name="bsonReader">The BsonReader.</param>
/// <param name="nominalType">The nominal type of the object.</param>
/// <param name="actualType">The actual type of the object.</param>
/// <param name="options">The serialization options.</param>
/// <returns>An object.</returns>
// actualType ignored
public override object Deserialize(BsonReader bsonReader, Type nominalType, Type actualType, IBsonSerializationOptions options)
{
if (_trace)
pb.Trace.WriteLine("OXmlElementSerializer.Deserialize()");
var bsonType = bsonReader.GetCurrentBsonType();
if (bsonType == BsonType.Null)
{
bsonReader.ReadNull();
return null;
}
else if (bsonType != BsonType.Document)
throw new PBException($"deserialize OXmlElement, invalid BsonType {bsonType}.");
bsonReader.ReadStartDocument();
string type = bsonReader.FindStringElement("Type");
OXmlElement value;
switch (type.ToLower())
{
case "line":
value = new OXmlElement { Type = OXmlElementType.Line };
break;
case "tabstop":
value = new OXmlElement { Type = OXmlElementType.TabStop };
break;
case "paragraph":
//value = OXmlParagraphElementSerializer.Instance.Deserialize(bsonReader, typeof(OXmlParagraphElement), options);
value = OXmlParagraphElementSerializer.Instance._Deserialize(bsonReader, options);
break;
case "text":
value = OXmlTextElementSerializer.Instance._Deserialize(bsonReader, options);
break;
case "simplefield":
value = OXmlSimpleFieldElementSerializer.Instance._Deserialize(bsonReader, options);
break;
case "docsection":
value = OXmlDocSectionElementSerializer.Instance._Deserialize(bsonReader, options);
break;
case "docdefaultsrunproperties":
value = OXmlDocDefaultsRunPropertiesElementSerializer.Instance._Deserialize(bsonReader, options);
break;
case "docdefaultsparagraphproperties":
//value = new OXmlDocDefaultsParagraphPropertiesElement();
value = new OXmlElement { Type = OXmlElementType.DocDefaultsParagraphProperties };
break;
case "openheader":
value = OXmlOpenHeaderElementSerializer.Instance._Deserialize(bsonReader, options);
break;
case "closeheader":
value = new OXmlElement { Type = OXmlElementType.CloseHeader };
break;
case "openfooter":
value = OXmlOpenFooterElementSerializer.Instance._Deserialize(bsonReader, options);
break;
case "closefooter":
value = new OXmlElement { Type = OXmlElementType.CloseFooter };
break;
case "style":
value = OXmlStyleElementSerializer.Instance._Deserialize(bsonReader, options);
break;
case "picture":
//value = OXmlPictureElementSerializer.Instance._Deserialize(bsonReader, options);
value = OXmlPictureElementCreator.CreatePicture(zmongo.ReadBsonDocumentWOStartEnd(bsonReader));
break;
default:
throw new PBException($"deserialize OXmlElement, invalid Type {type}.");
}
bsonReader.ReadEndDocument();
return value;
//switch (bsonType)
//{
// case BsonType.Array: return (ZValue)ZStringArraySerializer.Instance.Deserialize(bsonReader, typeof(ZStringArray), options);
// //case BsonType.Binary: return (BsonValue)BsonBinaryDataSerializer.Instance.Deserialize(bsonReader, typeof(BsonBinaryData), options);
// //case BsonType.Boolean: return (BsonValue)BsonBooleanSerializer.Instance.Deserialize(bsonReader, typeof(BsonBoolean), options);
// //case BsonType.DateTime: return (BsonValue)BsonDateTimeSerializer.Instance.Deserialize(bsonReader, typeof(BsonDateTime), options);
// //case BsonType.Document: return (BsonValue)BsonDocumentSerializer.Instance.Deserialize(bsonReader, typeof(BsonDocument), options);
// //case BsonType.Double: return (BsonValue)BsonDoubleSerializer.Instance.Deserialize(bsonReader, typeof(BsonDouble), options);
// case BsonType.Int32: return (ZValue)ZIntSerializer.Instance.Deserialize(bsonReader, typeof(ZInt), options);
// //case BsonType.Int64: return (BsonValue)BsonInt64Serializer.Instance.Deserialize(bsonReader, typeof(BsonInt64), options);
// //case BsonType.JavaScript: return (BsonValue)BsonJavaScriptSerializer.Instance.Deserialize(bsonReader, typeof(BsonJavaScript), options);
// //case BsonType.JavaScriptWithScope: return (BsonValue)BsonJavaScriptWithScopeSerializer.Instance.Deserialize(bsonReader, typeof(BsonJavaScriptWithScope), options);
// //case BsonType.MaxKey: return (BsonValue)BsonMaxKeySerializer.Instance.Deserialize(bsonReader, typeof(BsonMaxKey), options);
// //case BsonType.MinKey: return (BsonValue)BsonMinKeySerializer.Instance.Deserialize(bsonReader, typeof(BsonMinKey), options);
// //case BsonType.Null: return (BsonValue)BsonNullSerializer.Instance.Deserialize(bsonReader, typeof(BsonNull), options);
// case BsonType.Document:
// return ReadZValueFromBsonDocument(bsonReader);
// case BsonType.Null:
// bsonReader.ReadNull();
// return null;
// //case BsonType.ObjectId: return (BsonValue)BsonObjectIdSerializer.Instance.Deserialize(bsonReader, typeof(BsonObjectId), options);
// //case BsonType.RegularExpression: return (BsonValue)BsonRegularExpressionSerializer.Instance.Deserialize(bsonReader, typeof(BsonRegularExpression), options);
// //case BsonType.String: return (BsonValue)BsonStringSerializer.Instance.Deserialize(bsonReader, typeof(BsonString), options);
// case BsonType.String: return (ZValue)ZStringSerializer.Instance.Deserialize(bsonReader, typeof(ZString), options);
// // ZStringSerializer
// //case BsonType.Symbol: return (BsonValue)BsonSymbolSerializer.Instance.Deserialize(bsonReader, typeof(BsonSymbol), options);
// //case BsonType.Timestamp: return (BsonValue)BsonTimestampSerializer.Instance.Deserialize(bsonReader, typeof(BsonTimestamp), options);
// //case BsonType.Undefined: return (BsonValue)BsonUndefinedSerializer.Instance.Deserialize(bsonReader, typeof(BsonUndefined), options);
// default:
// //var message = string.Format("Invalid BsonType {0}.", bsonType);
// //throw new BsonInternalException(message);
// throw new PBException("error deserialize ZValue, invalid BsonType {0}.", bsonType);
//}
}
