OpenTween/Thumbnail/ThumbnailInfo.cs

   1 // OpenTween - Client of Twitter
   2 // Copyright (c) 2012 kim_upsilon (@kim_upsilon) <https://upsilo.net/~upsilon/>
   3 // All rights reserved.
   4 //
   5 // This file is part of OpenTween.
   6 //
   7 // This program is free software; you can redistribute it and/or modify it
   8 // under the terms of the GNU General Public License as published by the Free
   9 // Software Foundation; either version 3 of the License, or (at your option)
  10 // any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful, but
  13 // WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  15 // for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License along
  18 // with this program. If not, see <http://www.gnu.org/licenses/>, or write to
  19 // the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
  20 // Boston, MA 02110-1301, USA.
  21
  22 using System;
  23 using System.Collections.Generic;
  24 using System.Linq;
  25 using System.Net.Http;
  26 using System.Text;
  27 using System.Threading;
  28 using System.Threading.Tasks;
  29 using OpenTween.Connection;
  30
  31 namespace OpenTween.Thumbnail
  32 {
  33     public class ThumbnailInfo
  34     {
  35         public string ImageUrl { get; set; }
  36         public string ThumbnailUrl { get; set; }
  37         public string TooltipText { get; set; }
  38         public string FullSizeImageUrl { get; set; }
  39
  40         public Task<MemoryImage> LoadThumbnailImageAsync()
  41         {
  42             return this.LoadThumbnailImageAsync(CancellationToken.None);
  43         }
  44
  45         public Task<MemoryImage> LoadThumbnailImageAsync(CancellationToken cancellationToken)
  46         {
  47             return this.LoadThumbnailImageAsync(Networking.Http, cancellationToken);
  48         }
  49
  50         public async virtual Task<MemoryImage> LoadThumbnailImageAsync(HttpClient http, CancellationToken cancellationToken)
  51         {
  52             using (var response = await http.GetAsync(this.ThumbnailUrl, cancellationToken).ConfigureAwait(false))
  53             {
  54                 response.EnsureSuccessStatusCode();
  55
  56                 var imageStream = await response.Content.ReadAsStreamAsync()
  57                     .ConfigureAwait(false);
  58
  59                 return await MemoryImage.CopyFromStreamAsync(imageStream)
  60                     .ConfigureAwait(false);
  61             }
  62         }
  63     }
  64 }