Pass Client & ClientListener through all controllers

ChatApp/app/src/main/java/client/ClientGuiController.java

@@ -1,6 +1,56 @@
 package client;
 
 import javafx.fxml.FXML;
+import network.protocol.packets.ServerResponsePacket;
 
-public class ClientGuiController {
+import java.time.Instant;
+import java.util.List;
+
+public class ClientGuiController implements ClientListener {
+
+    private Client client;
+
+    public void setClient(Client client) {
+        this.client = client;
+    }
+
+    @FXML
+    public void initialize() {
+
+    }
+
+    @Override
+    public void handleDisconnect() {
+
+    }
+
+    @Override
+    public void handleConnexionError() {
+
+    }
+
+    @Override
+    public void handleConnect() {
+
+    }
+
+    @Override
+    public void handleChatMessage(Instant time, String chatter, String content) {
+
+    }
+
+    @Override
+    public void handleRoomList(List<String> roomNames) {
+
+    }
+
+    @Override
+    public void handleServerResponse(ServerResponsePacket.Response response) {
+
+    }
+
+    @Override
+    public void handleActualRoom(String roomName) {
+
+    }
 }