added code for a notification system

src/controllers/highlights/highlightcontroller.cpp

@@ -2,6 +2,7 @@
 
 #include "application.hpp"
 #include "controllers/highlights/highlightmodel.hpp"
+#include "widgets/notificationpopup.hpp"
 
 namespace chatterino {
 namespace controllers {
@@ -34,6 +35,15 @@ HighlightModel *HighlightController::createModel(QObject *parent)
     return model;
 }
 
+void HighlightController::addHighlight(const messages::MessagePtr &msg)
+{
+    //    static widgets::NotificationPopup popup;
+
+    //    popup.updatePosition();
+    //    popup.addMessage(msg);
+    //    popup.show();
+}
+
 }  // namespace highlights
 }  // namespace controllers
 }  // namespace chatterino

src/controllers/highlights/highlightcontroller.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "controllers/highlights/highlightphrase.hpp"
+#include "messages/message.hpp"
 #include "singletons/settingsmanager.hpp"
 #include "util/signalvector2.hpp"
 
@@ -21,6 +22,8 @@ public:
 
     HighlightModel *createModel(QObject *parent);
 
+    void addHighlight(const messages::MessagePtr &msg);
+
 private:
     bool initialized = false;