PubSub system (#346)

* Add websocketpp dependency

* Initial pubsub commit

Renamed selection min and max variables to selectionMin and selectionMax
to bypass windows min/max macros being stupid.

TwitchAccount is now initialized with its User ID. It cannot be changed
after it has been initialized.

* Update openssl folder

* Update installation instructions

* Split up websocketpp dependency to its own code only and openssl.pri

* Add missing include to asio steady_timer

* Update dependencies for linux

src/providers/twitch/twitchchannel.hpp

@@ -8,6 +8,8 @@
 #include "singletons/ircmanager.hpp"
 #include "util/concurrentmap.hpp"
 
+#include <pajlada/signals/signalholder.hpp>
+
 #include <mutex>
 
 namespace chatterino {
@@ -16,7 +18,7 @@ namespace twitch {
 
 class TwitchServer;
 
-class TwitchChannel final : public Channel
+class TwitchChannel final : public Channel, pajlada::Signals::SignalHolder
 {
     QTimer *liveStatusTimer;
     QTimer *chattersListTimer;
@@ -31,6 +33,11 @@ public:
         QString uptime;
     };
 
+    struct UserState {
+        bool mod;
+        bool broadcaster;
+    };
+
     ~TwitchChannel() final;
 
     void reloadChannelEmotes();
@@ -88,6 +95,9 @@ private:
     mutable std::mutex streamStatusMutex;
     StreamStatus streamStatus;
 
+    mutable std::mutex userStateMutex;
+    UserState userState;
+
     void fetchRecentMessages();
 
     bool mod;