Refactor highlight blacklist to use the model system

Fix #560

src/controllers/highlights/HighlightController.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "common/SignalVector.hpp"
+#include "controllers/highlights/HighlightBlacklistUser.hpp"
 #include "controllers/highlights/HighlightPhrase.hpp"
 #include "messages/Message.hpp"
 #include "singletons/Settings.hpp"
@@ -8,6 +9,7 @@
 namespace chatterino {
 
 class HighlightModel;
+class HighlightBlacklistModel;
 
 class HighlightController
 {
@@ -17,8 +19,12 @@ public:
     void initialize();
 
     UnsortedSignalVector<HighlightPhrase> phrases;
+    UnsortedSignalVector<HighlightBlacklistUser> blacklistedUsers;
 
     HighlightModel *createModel(QObject *parent);
+    HighlightBlacklistModel *createBlacklistModel(QObject *parent);
+
+    bool blacklistContains(const QString &username);
 
     void addHighlight(const MessagePtr &msg);
 
@@ -27,6 +33,7 @@ private:
 
     ChatterinoSetting<std::vector<HighlightPhrase>> highlightsSetting = {
         "/highlighting/highlights"};
+    ChatterinoSetting<std::vector<HighlightPhrase>> blacklistSetting = {"/highlighting/blacklist"};
 };
 
 }  // namespace chatterino