@Override
public void update(Observable arg0, Object arg1) {
if (arg1 instanceof String) {
String message = arg1.toString();
if (message.startsWith("Forwarding: ")) {
ForwardButton.setText("Stop Forwarding");
SetChannelButton.setEnabled(false);
BlockButton.setEnabled(false);
Send.setEnabled(false);
MessageInput.setEnabled(false);
MessageDisplay.setEnabled(false);
Availability.setEnabled(false);
} else if (message.startsWith("End Forwarding:")) {
ForwardButton.setText("Forward");
SetChannelButton.setEnabled(true);
BlockButton.setEnabled(true);
Send.setEnabled(true);
MessageInput.setEnabled(true);
MessageDisplay.setEnabled(true);
Availability.setEnabled(true);
} else if (message.startsWith("#send")) {
try {
client.sendToServer(message.substring(6));
} catch (IOException e) {
e.printStackTrace();
}
return;
} else if (message.startsWith("#linedraw")) {
drawPad.updateDraw(message);
return;
} else if (message.startsWith("Login Error:")) {
java.awt.EventQueue.invokeLater(
new Runnable() {
public void run() {
chatFrame.setVisible(false);
LoginGUI login = new LoginGUI(true);
}
});
}
if (!message.substring(message.length() - 1, message.length()).equals("\n")) message += "\n";
// Update UI display safely
final String msg = message;
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
MessageDisplay.append(msg);
}
});
}
}
/**
* This method waits for input from the console. Once it is received, it sends it to the client's
* message handler.
*/
public void accept() {
try {
BufferedReader fromConsole = new BufferedReader(new InputStreamReader(System.in));
String message;
while (true) {
message = fromConsole.readLine();
if (client == null) {
client = new ChatClient(this);
}
client.handleMessageFromClientUI(message);
}
} catch (Exception ex) {
System.out.println("Unexpected error while reading from console!");
}
}
/** Creates new form GUI */
public ClientGUI(String loginID, String password, String host, int port) {
try {
client = new ChatClient(loginID, password, host, port, this);
} catch (IOException exception) {
System.out.println("Cannot open connection. Awaiting command.");
// System.exit(1);
}
try {
client.addObserver(this);
} catch (Exception e) {
// server not started
JOptionPane.showMessageDialog(
null, "Error: Could not connect to server. Make sure server is started and try again");
System.exit(0);
}
SetupUI(loginID);
self = this;
}
public void handleMessageFromClientUI(Object message) {
String parsed = "";
if (!((Message) message).message.startsWith("#") && isConnected()) {
super.handleMessageFromClientUI(message);
return;
}
{
parsed = ((Message) message).message.substring(1);
if (parsed.equals("quit")) {
try {
closeConnection();
} catch (IOException ex) {
ex.printStackTrace();
System.exit(1);
}
System.exit(0);
} else if (parsed.equals("logoff")) {
try {
closeConnection();
} catch (IOException ex) {
ex.printStackTrace();
System.exit(1);
}
} else if (parsed.equals("login")) {
if (isConnected()) {
System.out.println("Error: Already connected");
return;
}
try {
openConnection();
} catch (IOException ex) {
System.out.println("Error: " + ex.getMessage());
ex.printStackTrace();
}
} else if (parsed.startsWith("sethost")) {
if (isConnected()) {
System.out.println("Error: Already connected");
return;
} else {
String host = "";
try {
host = parsed.split(" ")[1];
} catch (ArrayIndexOutOfBoundsException ex) {
System.out.println("Error: Must specify host");
return;
}
setHost(host);
}
} else if (parsed.startsWith("setport")) {
if (isConnected()) {
System.out.println("Error: Already connected");
return;
}
int port = 0;
try {
port = Integer.parseInt(parsed.split(" ")[1]);
} catch (ArrayIndexOutOfBoundsException ex) {
System.out.println("Error: Must specify port");
return;
}
setPort(port);
} else if (parsed.equals("getport")) {
System.out.println("Port: " + getPort());
} else if (parsed.equals("gethost")) {
System.out.println("Host: " + getHost());
}
}
}