Added Message.MentionedChannels

src/Discord.Net/DiscordClient.Messages.cs

@@ -125,6 +125,7 @@ namespace Discord
 			var userIds = !channel.IsPrivate ? Mention.GetUserIds(text).Distinct() : new string[0];
 			if (Config.UseMessageQueue)
 			{
+				var channelIds = !channel.IsPrivate ? Mention.GetChannelIds(text).Distinct() : new string[0];
 				var nonce = GenerateNonce();
 				msg = _messages.GetOrAdd("nonce_" + nonce, channel.Id, _userId);
                 var currentUser = msg.User;
@@ -136,9 +137,19 @@ namespace Discord
 					ChannelId = channel.Id,
 					IsTextToSpeech = isTextToSpeech
 				});
-				msg.Mentions = userIds.Select(x => _users[x, channel.Server.Id]).Where(x => x != null).ToArray();
-				msg.IsQueued = true;
 				msg.Nonce = nonce;
+				msg.IsQueued = true;
+
+				//IsPrivate check is already done earlier
+				msg.MentionedUsers = userIds
+					.Select(x => _users[x, channel.Server.Id])
+					.Where(x => x != null)
+					.ToArray();
+				msg.MentionedChannels = channelIds
+					.Select(x => _channels[x])
+					.Where(x => x != null && x.Server == channel.Server)
+					.ToArray();
+
 				_pendingMessages.Enqueue(msg);
 			}
 			else
@@ -258,7 +269,7 @@ namespace Discord
 						SendMessageResponse response = null;
 						try
 						{
-							response = await _api.SendMessage(msg.Channel.Id, msg.RawText, msg.Mentions.Select(x => x.Id), msg.Nonce, msg.IsTTS).ConfigureAwait(false);
+							response = await _api.SendMessage(msg.Channel.Id, msg.RawText, msg.MentionedUsers.Select(x => x.Id), msg.Nonce, msg.IsTTS).ConfigureAwait(false);
 						}
 						catch (WebException) { break; }
 						catch (HttpException) { hasFailed = true; }

src/Discord.Net/Helpers/Mention.cs

@@ -49,5 +49,12 @@ namespace Discord
 				.Select(x => x.Groups[1].Value)
 				.Where(x => x != null);
 		}
+		internal static IEnumerable<string> GetChannelIds(string text)
+		{
+			return _channelRegex.Matches(text)
+				.OfType<Match>()
+				.Select(x => x.Groups[1].Value)
+				.Where(x => x != null);
+		}
 	}
 }

src/Discord.Net/Models/Message.cs

@@ -125,8 +125,12 @@ namespace Discord
 		
 		/// <summary> Returns a collection of all users mentioned in this message. </summary>
 		[JsonIgnore]
-		public IEnumerable<User> Mentions { get; internal set; }
-		
+		public IEnumerable<User> MentionedUsers { get; internal set; }
+
+		/// <summary> Returns a collection of all channels mentioned in this message. </summary>
+		[JsonIgnore]
+		public IEnumerable<Channel> MentionedChannels { get; internal set; }
+
 		/// <summary> Returns the server containing the channel this message was sent to. </summary>
 		[JsonIgnore]
 		public Server Server => _channel.Value.Server;
@@ -208,13 +212,26 @@ namespace Discord
 				EditedTimestamp = model.EditedTimestamp;
 			if (model.Mentions != null)
 			{
-				Mentions = model.Mentions.Select(x => _client.Users[x.Id, Channel.Server?.Id]).ToArray();
-				IsMentioningMe = model.Mentions.Any(x => x.Id == _client.CurrentUserId);
+				MentionedUsers = model.Mentions
+					.Select(x => _client.Users[x.Id, Channel.Server?.Id])
+					.ToArray();
+				IsMentioningMe = model.Mentions
+					.Any(x => x.Id == _client.CurrentUserId);
 			}
 			if (model.Content != null)
 			{
 				RawText = model.Content;
 				_cleanText = null;
+				
+				if (!Channel.IsPrivate)
+				{
+					MentionedChannels = Mention.GetChannelIds(model.Content)
+						.Select(x => _client.Channels[x])
+						.Where(x => x.Server == Channel.Server)
+						.ToArray();
+				}
+				else
+					MentionedChannels = new Channel[0];
 			}
 		}