More progress on tab-complete

There are missing parts to the "account-based" emotes that needs to be
completed before emote completion can be considered done. For now, when
I've been testing, I've been manually injecting the oauthClient and
oauthToken to the settings file with the `user_subscriptions` scope

src/completionmanager.hpp

@@ -1,12 +1,15 @@
 #pragma once
 
-#include <QAbstractItemModel>
+#include <QAbstractListModel>
+#include <QVector>
 
 #include <string>
 
 namespace chatterino {
 
-class CompletionModel : public QAbstractItemModel
+class EmoteManager;
+
+class CompletionModel : public QAbstractListModel
 {
 public:
     virtual int columnCount(const QModelIndex & /*parent*/) const override
@@ -16,34 +19,27 @@ public:
 
     virtual QVariant data(const QModelIndex &index, int role) const override
     {
-        // TODO: Implement
-        return QVariant();
-    }
-
-    virtual QModelIndex index(int row, int column, const QModelIndex &parent) const override
-    {
-        // TODO: Implement
-        return QModelIndex();
-    }
-
-    virtual QModelIndex parent(const QModelIndex &child) const override
-    {
-        return QModelIndex();
+        // TODO: Implement more safely
+        return QVariant(this->emotes.at(index.row()));
     }
 
     virtual int rowCount(const QModelIndex &parent) const override
     {
-        return 1;
+        return this->emotes.size();
     }
+
+    QVector<QString> emotes;
 };
 
 class CompletionManager
 {
-    CompletionManager();
+    CompletionManager(EmoteManager &_emoteManager);
+
+    EmoteManager &emoteManager;
 
 public:
     CompletionModel *createModel(const std::string &channelName);
-    void updateModel(CompletionModel *model, const std::string &channelName);
+    void updateModel(CompletionModel *model, const std::string &channelName = std::string());
 
     friend class Application;
 };