private async Task <IPhotoMetadata> GetPhotoMetadataAsync(UInt32 photoId, Double latitude, Double longitude, String uri)
{
var storageFile = await StorageFile.GetFileFromApplicationUriAsync(new Uri(uri));
var fileBuffer = await FileIO.ReadBufferAsync(storageFile);
var imageProperties = await storageFile.Properties.GetImagePropertiesAsync();
await App.Model.LocalFiles.StoreAsync(photoId, fileBuffer);
var photo = new ScreenshotsDataPhoto(new Size(imageProperties.Width, imageProperties.Height), new Uri(uri), "m");
return(new ScreenshotsPhotoMetadata(photoId, OwnerId.Create(1, OwnerId.OwnerType.User), latitude, longitude, DateTime.Now, null, new IPhoto[] { photo }));
}
public static IPhotoMetadata Create(JsonObject value)
{
var photos = new List <IPhoto>();
if (value.ContainsKey("sizes") && (value["sizes"].ValueType == JsonValueType.Array))
{
foreach (var item in value["sizes"].GetArray())
{
var photo = VkPhoto.Create(item.GetObject());
if (photo != null)
{
photos.Add(photo);
}
}
}
var instance = new VkPhotoMetadata();
if (value.ContainsKey("id"))
{
instance.Id = (UInt32)value["id"].GetNumber();
}
if (value.ContainsKey("owner_id"))
{
var owner = value["owner_id"].GetNumber();
instance.Owner = (owner < 0) ? OwnerId.Create((UInt32)Math.Abs(owner), OwnerId.OwnerType.Group) : OwnerId.Create((UInt32)owner, OwnerId.OwnerType.User);
}
if (value.ContainsKey("lat"))
{
instance.Latitude = value["lat"].GetNumber();
}
if (value.ContainsKey("long"))
{
instance.Longitude = value["long"].GetNumber();
}
if (value.ContainsKey("date"))
{
instance.Date = DateTimeExtensions.FromUnixTimestamp((Int32)value["date"].GetNumber());
}
if (value.ContainsKey("text"))
{
instance.Text = value["text"].GetString();
}
instance.Photos = photos;
return(instance);
}
private static Tuple <IReadOnlyCollection <IPhotoMetadata>, DateTime?, DateTime?> ParseItemsUsingNewton(JsonTextReader reader)
{
var items = new List <IPhotoMetadata>();
while (reader.TokenType != JsonToken.StartArray)
{
reader.Read();
}
var startDate = (DateTime?)null;
var endDate = (DateTime?)null;
while (reader.Read() && (reader.TokenType != JsonToken.EndArray))
{
while (reader.TokenType != JsonToken.StartObject)
{
reader.Read();
}
var id = (UInt32?)null;
var owner = (OwnerId)null;
var lat = (Double?)null;
var lon = (Double?)null;
var date = (DateTime?)null;
var text = (String)null;
var photos = new List <IPhoto>();
while (reader.Read() && (reader.TokenType != JsonToken.EndObject))
{
if (reader.TokenType == JsonToken.PropertyName)
{
if ("id".Equals(reader.Value))
{
reader.Read();
id = Convert.ToUInt32(reader.Value);
}
else if ("owner_id".Equals(reader.Value))
{
reader.Read();
owner = OwnerId.Create(Convert.ToInt32(reader.Value));
}
else if ("lat".Equals(reader.Value))
{
reader.Read();
lat = Convert.ToDouble(reader.Value);
}
else if ("long".Equals(reader.Value))
{
reader.Read();
lon = Convert.ToDouble(reader.Value);
}
else if ("date".Equals(reader.Value))
{
reader.Read();
date = DateTimeExtensions.FromUnixTimestamp(Convert.ToInt32(reader.Value));
if (!endDate.HasValue)
{
endDate = date;
}
startDate = date;
}
else if ("text".Equals(reader.Value))
{
reader.Read();
text = Convert.ToString(reader.Value);
}
else if ("sizes".Equals(reader.Value))
{
while (reader.Read() && (reader.TokenType != JsonToken.EndArray))
{
var src = (String)null;
var width = (UInt32?)null;
var height = (UInt32?)null;
var type = (String)null;
while (reader.Read() && (reader.TokenType != JsonToken.EndObject))
{
if (reader.TokenType == JsonToken.PropertyName)
{
if ("src".Equals(reader.Value))
{
reader.Read();
src = Convert.ToString(reader.Value);
}
else if ("width".Equals(reader.Value))
{
reader.Read();
width = Convert.ToUInt32(reader.Value);
}
else if ("height".Equals(reader.Value))
{
reader.Read();
height = Convert.ToUInt32(reader.Value);
}
else if ("type".Equals(reader.Value))
{
reader.Read();
type = Convert.ToString(reader.Value);
}
}
}
if ((src != null) && width.HasValue && (width.Value > 0) && height.HasValue && (height.Value > 0) && (type != null))
{
photos.Add(new VkPhoto(new Windows.Foundation.Size(width.Value, height.Value), new Uri(src), type));
}
}
}
}
}
items.Add(new VkPhotoMetadata(id, owner, lat, lon, date, text, photos));
}
return(new Tuple <IReadOnlyCollection <IPhotoMetadata>, DateTime?, DateTime?>(items, startDate, endDate));
}