private BitmapImage LoadImage(string key, string filePath)
{
BitmapImage bitmapImage = null;
if (Fetching.Contains(key))
{
return(new BitmapImage());
}
try
{
Application.Current.Dispatcher.Invoke(() =>
{
bitmapImage = new BitmapImage();
using (var stream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
bitmapImage.BeginInit();
bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
bitmapImage.StreamSource = stream;
bitmapImage.EndInit();
bitmapImage.Freeze();
}
});
}
catch (FileFormatException e)
{
Log.Error(e);
try
{
File.Delete(filePath);
//TODO: Implement retry
}
catch (Exception)
{
}
}
catch (IOException e)
{
Log.Error(e);
}
return(bitmapImage);
}
private static async Task <XDocument> LoadFromUrlAsync(Uri url)
{
using (var httpClient = new HttpClient())
{
httpClient.DefaultRequestHeaders.Add(
"User-Agent",
"Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.3; WOW64; Trident/7.0; Touch; .NET4.0E; .NET4.0C; .NET CLR 3.5.30729; .NET CLR 2.0.50727; .NET CLR 3.0.30729; Tablet PC 2.0)");
Fetching?.Invoke(null, new FetchingEventArgs(url));
try
{
using (var hs = await httpClient.GetStreamAsync(url))
{
var document = SgmlReader.Parse(hs);
Fetched?.Invoke(null, new FetchedEventArgs(url, document, null));
return(document);
}
}
catch (Exception ex)
{
Fetched?.Invoke(null, new FetchedEventArgs(url, null, ex));
throw;
}
}
}
