Create FastChatController.java

Author: kochlisGit

src/controller/FastChatController.java

@@ -0,0 +1,139 @@
+package controller;
+
+import clients.Client;
+import components.ConnectDialogBox;
+import components.TextAreaReceiver;
+import javafx.application.Platform;
+import javafx.fxml.FXML;
+import javafx.scene.control.*;
+import javafx.scene.input.KeyCode;
+import javafx.scene.input.KeyEvent;
+import utils.PDFExporter;
+
+import java.util.ArrayList;
+import java.util.Optional;
+
+// This controller connects the front-end with the back-end.
+public class FastChatController
+{
+    @FXML
+    private TextArea chatTextArea;
+    @FXML
+    private TextField messageText;
+    @FXML
+    private Button sendBtn;
+    @FXML
+    private MenuItem connectMenu;
+    @FXML
+    private MenuItem disconnectMenu;
+
+    private Client client;
+    private String username;
+
+    public FastChatController() {
+        client = null;
+    }
+
+    public void sendMessage() {
+        client.sendMessage( messageText.getText() );
+        messageText.clear();
+    }
+
+    public void onEnter(KeyEvent key) {
+        if ( key.getCode().equals(KeyCode.ENTER) ) {
+            sendMessage();
+        }
+    }
+
+    public void clearChatArea() {
+        chatTextArea.clear();
+    }
+
+    public void exportToPDF() {
+        new Thread( new PDFExporter( chatTextArea.getText() ) ).start();
+    }
+
+    public void connectToServer()
+    {
+        Optional< ArrayList<String> > optionalList = new ConnectDialogBox().showAndWait();
+        if ( optionalList.isPresent() )
+        {
+            ArrayList<String> settingsList = optionalList.get();
+            username = settingsList.get(2);
+            client = new Client(settingsList.get(0), Integer.valueOf( settingsList.get(1) ), username);
+
+            if ( client.connectToServer() )
+            {
+                new Thread( new TextAreaReceiver(client, chatTextArea) ).start();
+
+                messageText.setDisable(false);
+                sendBtn.setDisable(false);
+                connectMenu.setDisable(true);
+                disconnectMenu.setDisable(false);
+
+                Alert alert = new Alert(Alert.AlertType.INFORMATION);
+                alert.setTitle("Information Dialog");
+                alert.setHeaderText("Connection is Successful");
+                alert.setContentText("You may type and receive messages!");
+
+                alert.showAndWait();
+            }
+            else
+            {
+                Alert alert = new Alert(Alert.AlertType.ERROR);
+                alert.setTitle("Information Dialog");
+                alert.setHeaderText("Connection Failed");
+                alert.setContentText("Oops, You have failed to connect with the server." +
+                                        "\nPlease try again later." +
+                                        "\nAlso, make sure the settings are correct.");
+                alert.showAndWait();
+            }
+        }
+    }
+
+    public void disconnectFromServer()
+    {
+        if (client != null)
+        {
+            Alert alert = new Alert(Alert.AlertType.CONFIRMATION);
+            alert.setTitle("Confirmation Dialog");
+            alert.setHeaderText("Disconnecting from server...");
+            alert.setContentText("Are you sure you want to disconnect?");
+
+            Optional<ButtonType> result = alert.showAndWait();
+            if( result.isPresent() )
+            {
+                if (result.get() == ButtonType.OK) {
+                    client.sendMessage("$");
+                    messageText.setDisable(true);
+                    sendBtn.setDisable(true);
+                    connectMenu.setDisable(false);
+                    disconnectMenu.setDisable(true);
+                    client = null;
+                }
+            }
+        }
+    }
+
+    public void exitApplication() {
+        disconnectFromServer();
+        if (client == null)
+        {
+            Platform.exit();
+            System.exit(0);
+        }
+    }
+
+    public void openHelpBox()
+    {
+        Alert alert = new Alert(Alert.AlertType.INFORMATION);
+        alert.setTitle("About");
+        alert.setHeaderText("Simple & Fun Project");
+        alert.setContentText("This simple chat application was created as a school project." +
+                                "There are still lots of improvements to be made." +
+                                "I hope You liked it." +
+                                "If You can't get it to work, check the instructions on github.");
+
+        alert.showAndWait();
+    }
+}