added messages in mentions tab if correct predicate is met

CHANGELOG.md

@@ -5,6 +5,7 @@
 - Minor: Include normally-stripped mention in replies in logs. (#4420)
 - Minor: Added support for FrankerFaceZ animated emotes. (#4434)
 - Minor: Added a local backup of the Twitch Badges API in case the request fails. (#4463)
+- Minor: Populate "mentions" tab with messages from history (#4475)
 - Bugfix: Fixed an issue where animated emotes would render on top of zero-width emotes. (#4314)
 - Bugfix: Fixed an issue where it was difficult to hover a zero-width emote. (#4314)
 - Bugfix: Fixed an issue where context-menu items for zero-width emotes displayed the wrong provider. (#4460)

src/providers/twitch/TwitchChannel.cpp

@@ -1117,6 +1117,21 @@ void TwitchChannel::loadRecentMessages()
 
             tc->addMessagesAtStart(messages);
             tc->loadingRecentMessages_.clear();
+
+            std::vector<MessagePtr> msgs;
+            for (MessagePtr msg : messages)
+            {
+                const auto highlighted =
+                    msg->flags.has(MessageFlag::Highlighted);
+                const auto showInMentions =
+                    msg->flags.has(MessageFlag::ShowInMentions);
+                if (highlighted && showInMentions)
+                {
+                    msgs.push_back(msg);
+                }
+            }
+
+            getApp()->getTwitch()->mentionsChannel->fillInMissingMessages(msgs);
         },
         [weak]() {
             auto shared = weak.lock();