async static Task <List <string> > GetSlideURLs(string query, string size, CancellationToken token)
{
try
{
var url = $"https://www.google.com/search?q={Uri.EscapeUriString(query)}&tbm=isch&tbs=isz:lt,islt:{size}";
var data = await URLDownloader.GetURLString(url, token);
return(Regex.Matches(data, @"""ou"":""(.*?)""").Cast <Match>().Select(match => match.Groups[1].Value).ToList());
}
catch { return(new List <string>()); }
}
async static Task <string> FetchSlideAsync(string url, Action <string> action, CancellationToken token)
{
var fileName = $@"{Settings.SlidesPath}\{nameof(NeoPlayer)}-Slide-{++slideCount:0000000000}.bmp";
try
{
using (var ms = await URLDownloader.GetURLData(url, token))
await AsyncHelper.ThreadPoolRunAsync(() => ShrinkSlide(ms, fileName, token));
token.ThrowIfCancellationRequested();
action(fileName);
return(fileName);
}
catch
{
File.Delete(fileName);
return(null);
}
}