/// <summary>
/// Parses the media entity.
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns></returns>
public TwitterMediaEntity parseMediaEntity(JsonReader reader)
{
try
{
if (reader.TokenType != JsonToken.StartObject)
{
return(null);
}
TwitterMediaEntity entity = new TwitterMediaEntity();
int startDepth = reader.Depth;
// Start looping through all of the child nodes
while (reader.Read() && reader.Depth >= startDepth)
{
// If the current node isn't a property, skip it
if (reader.TokenType != JsonToken.PropertyName)
{
continue;
}
string fieldName = reader.Value as string;
if (string.IsNullOrEmpty(fieldName))
{
continue;
}
switch (fieldName)
{
case "type":
entity.MediaType = string.IsNullOrEmpty((string)reader.Value) ?
TwitterMediaEntity.MediaTypes.Unknown :
TwitterMediaEntity.MediaTypes.Photo;
break;
case "sizes":
entity.Sizes = new List <TwitterMediaEntity.MediaSize>();
break;
case "large":
case "medium":
case "small":
case "thumb":
if (reader.TokenType != JsonToken.PropertyName)
{
break;
}
TwitterMediaEntity.MediaSize newSize = new TwitterMediaEntity.MediaSize();
switch ((string)reader.Value)
{
case "large":
newSize.Size = TwitterMediaEntity.MediaSize.MediaSizes.Large;
break;
case "medium":
newSize.Size = TwitterMediaEntity.MediaSize.MediaSizes.Medium;
break;
case "small":
newSize.Size = TwitterMediaEntity.MediaSize.MediaSizes.Small;
break;
case "thumb":
newSize.Size = TwitterMediaEntity.MediaSize.MediaSizes.Thumb;
break;
default:
break;
}
int sizeDepth = reader.Depth;
// Loop through all of the properties of the size and read their values
while (reader.Read() && sizeDepth < reader.Depth)
{
if (reader.TokenType != JsonToken.PropertyName)
{
continue;
}
ReadFieldValue(reader, "h", newSize, () => newSize.Height);
ReadFieldValue(reader, "w", newSize, () => newSize.Width);
if (reader.TokenType == JsonToken.PropertyName && (string)reader.Value == "resize")
{
reader.Read();
newSize.Resize = string.IsNullOrEmpty((string)reader.Value) ?
TwitterMediaEntity.MediaSize.MediaSizeResizes.Unknown :
((string)reader.Value == "fit" ? TwitterMediaEntity.MediaSize.MediaSizeResizes.Fit : TwitterMediaEntity.MediaSize.MediaSizeResizes.Crop);
}
}
entity.Sizes.Add(newSize);
break;
case "indices":
reader.Read();
reader.Read();
entity.StartIndex = Convert.ToInt32((long)reader.Value);
reader.Read();
entity.EndIndex = Convert.ToInt32((long)reader.Value);
break;
default:
break;
}
ReadFieldValue(reader, "id", entity, () => entity.Id);
ReadFieldValue(reader, "id_str", entity, () => entity.IdString);
ReadFieldValue(reader, "media_url", entity, () => entity.MediaUrl);
ReadFieldValue(reader, "media_url_https", entity, () => entity.MediaUrlSecure);
ReadFieldValue(reader, "url", entity, () => entity.Url);
ReadFieldValue(reader, "display_url", entity, () => entity.DisplayUrl);
ReadFieldValue(reader, "expanded_url", entity, () => entity.ExpandedUrl);
}
return(entity);
}
catch
{
return(null);
}
}
/// <summary>
/// Writes the media entity.
/// </summary>
/// <param name="w">The w.</param>
/// <param name="e">The e.</param>
private static void WriteMediaEntity(JsonWriter w, TwitterMediaEntity e)
{
w.WritePropertyName("type");
switch (e.MediaType)
{
case TwitterMediaEntity.MediaTypes.Unknown:
w.WriteNull();
break;
case TwitterMediaEntity.MediaTypes.Photo:
w.WriteValue("photo");
break;
default:
break;
}
w.WritePropertyName("sizes");
w.WriteStartObject();
{
foreach (var item in e.Sizes)
{
w.WritePropertyName(item.Size.ToString().ToLower());
w.WriteStartObject();
{
w.WritePropertyName("h");
w.WriteValue(item.Height);
w.WritePropertyName("w");
w.WriteValue(item.Width);
w.WritePropertyName("resize");
w.WriteValue(item.Resize == TwitterMediaEntity.MediaSize.MediaSizeResizes.Fit ? "fit" : "crop");
w.WriteEndObject();
}
}
w.WriteEndObject();
}
w.WritePropertyName("id");
w.WriteValue(e.Id);
w.WritePropertyName("id_str");
w.WriteValue(e.IdString);
w.WritePropertyName("media_url");
w.WriteValue(e.MediaUrl);
w.WritePropertyName("media_url_https");
w.WriteValue(e.MediaUrlSecure);
w.WritePropertyName("url");
w.WriteValue(e.Url);
w.WritePropertyName("display_url");
w.WriteValue(e.DisplayUrl);
w.WritePropertyName("expanded_url");
w.WriteValue(e.ExpandedUrl);
}
