Code Sketch
sniper_0718
Category: Art
import javax.swing._
import java.awt._
import java.awt.event._
import java.io.File
import javax.imageio.ImageIO
import scala.collection.mutable
// Global state for Kojo environment
val registeredUsers = mutable.Map[String, String](
"bhimraj" -> "praxnya",
"user1" -> "123",
"user2" -> "456"
)
val onlineUsers = mutable.Set[String]()
val friendRequests = mutable.Map[String, mutable.Set[String]]()
val friendsMap = mutable.Map[String, mutable.Set[String]]()
val userPersonalPosts = mutable.Map[String, mutable.ListBuffer[String]]()
val profileImages = mutable.Map[String, ImageIcon]()
val notifications = mutable.Map[String, mutable.ListBuffer[String]]()
val chatHistories = mutable.Map[(String, String), mutable.ListBuffer[(String, String)]]()
class LoginFrame extends JFrame {
setTitle("Kojo Social - Login")
setResizable(false)
setSize(400, 240)
setLocationRelativeTo(null)
setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE)
val idField = new JTextField("bhimraj", 15)
val passField = new JPasswordField("praxnya", 15)
val loginButton = new JButton("Login / Register")
val errorLabel = new JLabel("")
errorLabel.setForeground(Color.RED)
val panel = new JPanel()
panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS))
panel.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20))
val idPanel = new JPanel(new FlowLayout(FlowLayout.LEFT))
idPanel.add(new JLabel("ID: "))
idPanel.add(idField)
val passPanel = new JPanel(new FlowLayout(FlowLayout.LEFT))
passPanel.add(new JLabel("Pass: "))
passPanel.add(passField)
panel.add(idPanel)
panel.add(Box.createVerticalStrut(5))
panel.add(passPanel)
panel.add(Box.createVerticalStrut(15))
panel.add(loginButton)
panel.add(Box.createVerticalStrut(10))
panel.add(errorLabel)
add(panel)
loginButton.addActionListener(new ActionListener {
override def actionPerformed(e: ActionEvent): Unit = {
val id = idField.getText.trim
val pass = new String(passField.getPassword).trim
if (id.nonEmpty && pass.nonEmpty) {
if (registeredUsers.contains(id) && registeredUsers(id) != pass) {
errorLabel.setText("Incorrect Password!")
} else {
registeredUsers(id) = pass
onlineUsers += id
new Dashboard(id).setVisible(true)
dispose()
}
} else {
errorLabel.setText("Please fill all fields!")
}
}
})
}
class Dashboard(currentUserId: String) extends JFrame {
setTitle("Kojo Social Dashboard - Logged in as: " + currentUserId)
setSize(1150, 680)
setLocationRelativeTo(null)
setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE)
setLayout(new BorderLayout())
var selectedTargetUser: String = ""
// 1. Left Column: Active Users (Online)
val usersListPanel = new JPanel()
usersListPanel.setLayout(new BoxLayout(usersListPanel, BoxLayout.Y_AXIS))
val usersScroll = new JScrollPane(usersListPanel)
usersScroll.setPreferredSize(new Dimension(240, 600))
// 2. Center Column: Live Chat
val centerPanel = new JPanel()
centerPanel.setLayout(new BoxLayout(centerPanel, BoxLayout.Y_AXIS))
centerPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10))
val chatTitleLbl = new JLabel("Select a user from left to Start Live Chat")
chatTitleLbl.setFont(new Font("Arial", Font.BOLD, 13))
val chatArea = new JTextArea(16, 30)
chatArea.setEditable(false)
val chatScroll = new JScrollPane(chatArea)
val msgField = new JTextField(20)
val sendMsgBtn = new JButton("Send Message")
val msgPanel = new JPanel(new FlowLayout(FlowLayout.LEFT))
msgPanel.add(msgField)
msgPanel.add(sendMsgBtn)
msgPanel.setVisible(false)
centerPanel.add(chatTitleLbl)
centerPanel.add(Box.createVerticalStrut(10))
centerPanel.add(chatScroll)
centerPanel.add(Box.createVerticalStrut(10))
centerPanel.add(msgPanel)
// 3. Right Column: Friend Requests, Upload Local Photo & Private Posts
val rightPanel = new JPanel()
rightPanel.setLayout(new BoxLayout(rightPanel, BoxLayout.Y_AXIS))
rightPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10))
val rightScroll = new JScrollPane(rightPanel)
rightScroll.setPreferredSize(new Dimension(380, 600))
// Timer to poll live notifications & chat updates
val timer = new Timer(1000, new ActionListener {
override def actionPerformed(e: ActionEvent): Unit = {
refreshOnlineUsers()
checkNotifications()
if (selectedTargetUser.nonEmpty) {
reloadChatArea()
}
}
})
timer.start()
def checkNotifications(): Unit = {
notifications.get(currentUserId) match {
case Some(msgs) if msgs.nonEmpty =>
for (m <- msgs) {
JOptionPane.showMessageDialog(this, m, "Live Notification", JOptionPane.INFORMATION_MESSAGE)
}
msgs.clear()
case _ =>
}
}
def reloadChatArea(): Unit = {
if (selectedTargetUser.nonEmpty) {
val chatKey = if (currentUserId < selectedTargetUser) (currentUserId, selectedTargetUser) else (selectedTargetUser, currentUserId)
val history = chatHistories.getOrElse(chatKey, mutable.ListBuffer())
chatArea.setText(history.map { case (sender, msg) => sender + ": " + msg }.mkString("\n"))
}
}
def refreshOnlineUsers(): Unit = {
usersListPanel.removeAll()
val titleLbl = new JLabel("Active Users (Online):")
titleLbl.setFont(new Font("Arial", Font.BOLD, 13))
usersListPanel.add(titleLbl)
usersListPanel.add(Box.createVerticalStrut(10))
for (user <- onlineUsers) {
val displayName = if (user == currentUserId) user + " (You)" else user
val btn = new JButton(displayName)
btn.setHorizontalAlignment(SwingConstants.LEFT)
btn.setMaximumSize(new Dimension(220, 30))
btn.addActionListener(new ActionListener {
override def actionPerformed(e: ActionEvent): Unit = {
if (user != currentUserId) {
selectedTargetUser = user
chatTitleLbl.setText("Live Chat with: " + user)
msgPanel.setVisible(true)
reloadChatArea()
} else {
JOptionPane.showMessageDialog(usersListPanel, "This is your own profile.", "Info", JOptionPane.INFORMATION_MESSAGE)
}
}
})
usersListPanel.add(btn)
usersListPanel.add(Box.createVerticalStrut(5))
}
usersListPanel.revalidate()
usersListPanel.repaint()
}
def setupRightPanel(): Unit = {
rightPanel.removeAll()
// Upload Local Photo Button (Computer varun photo select karnyasathi)
val uploadPhotoBtn = new JButton("Upload Photo from Computer")
uploadPhotoBtn.addActionListener(new ActionListener {
override def actionPerformed(e: ActionEvent): Unit = {
val fileChooser = new JFileChooser()
val result = fileChooser.showOpenDialog(rightPanel)
if (result == JFileChooser.APPROVE_OPTION) {
val file = fileChooser.getSelectedFile
try {
val img = ImageIO.read(file)
if (img != null) {
profileImages(currentUserId) = new ImageIcon(img)
JOptionPane.showMessageDialog(rightPanel, "Photo uploaded successfully!")
} else {
JOptionPane.showMessageDialog(rightPanel, "Selected file is not a valid image!", "Error", JOptionPane.ERROR_MESSAGE)
}
} catch {
case _: Throwable => JOptionPane.showMessageDialog(rightPanel, "Failed to load image!", "Error", JOptionPane.ERROR_MESSAGE)
}
}
}
})
rightPanel.add(uploadPhotoBtn)
rightPanel.add(Box.createVerticalStrut(15))
// Section 1: Friend Requests Section
val frTitle = new JLabel("Friend Requests:")
frTitle.setFont(new Font("Arial", Font.BOLD, 13))
rightPanel.add(frTitle)
rightPanel.add(Box.createVerticalStrut(5))
val reqButton = new JButton("Send Friend Request to Selected User")
reqButton.addActionListener(new ActionListener {
override def actionPerformed(e: ActionEvent): Unit = {
if (selectedTargetUser.nonEmpty) {
friendRequests.getOrElseUpdate(selectedTargetUser, mutable.Set()) += currentUserId
reqButton.setText("Request Sent")
reqButton.setEnabled(false)
JOptionPane.showMessageDialog(rightPanel, "Friend request sent to " + selectedTargetUser + "!")
} else {
JOptionPane.showMessageDialog(rightPanel, "Please select a user from the left column first!")
}
}
})
rightPanel.add(reqButton)
// Incoming Requests
rightPanel.add(Box.createVerticalStrut(10))
val incomingLbl = new JLabel("Incoming Requests:")
incomingLbl.setFont(new Font("Arial", Font.BOLD, 11))
rightPanel.add(incomingLbl)
val myRecvReqs = friendRequests.getOrElse(currentUserId, mutable.Set())
for (requester <- myRecvReqs) {
val reqPanel = new JPanel(new FlowLayout(FlowLayout.LEFT))
reqPanel.add(new JLabel(requester))
val acceptBtn = new JButton("Accept")
val rejectBtn = new JButton("Reject")
acceptBtn.addActionListener(new ActionListener {
override def actionPerformed(e: ActionEvent): Unit = {
myRecvReqs -= requester
friendsMap.getOrElseUpdate(currentUserId, mutable.Set()) += requester
friendsMap.getOrElseUpdate(requester, mutable.Set()) += currentUserId
notifications.getOrElseUpdate(requester, mutable.ListBuffer()) += (currentUserId + " accepted your friend request!")
JOptionPane.showMessageDialog(rightPanel, "You accepted " + requester + "'s request!")
setupRightPanel()
}
})
rejectBtn.addActionListener(new ActionListener {
override def actionPerformed(e: ActionEvent): Unit = {
myRecvReqs -= requester
notifications.getOrElseUpdate(requester, mutable.ListBuffer()) += (currentUserId + " rejected your friend request.")
setupRightPanel()
}
})
reqPanel.add(acceptBtn)
reqPanel.add(rejectBtn)
rightPanel.add(reqPanel)
}
// Section 2: Personal Posts
rightPanel.add(Box.createVerticalStrut(15))
val myPostTitle = new JLabel("My Personal Posts:")
myPostTitle.setFont(new Font("Arial", Font.BOLD, 12))
rightPanel.add(myPostTitle)
rightPanel.add(Box.createVerticalStrut(5))
val postInput = new JTextField(18)
val addPostBtn = new JButton("Add Post")
val postInputPanel = new JPanel(new FlowLayout(FlowLayout.LEFT))
postInputPanel.add(postInput)
postInputPanel.add(addPostBtn)
rightPanel.add(postInputPanel)
val myPostsArea = new JTextArea(7, 25)
myPostsArea.setEditable(false)
def reloadMyPosts(): Unit = {
val pList = userPersonalPosts.getOrElse(currentUserId, mutable.ListBuffer())
myPostsArea.setText(pList.mkString("\n"))
}
reloadMyPosts()
addPostBtn.addActionListener(new ActionListener {
override def actionPerformed(e: ActionEvent): Unit = {
val postTxt = postInput.getText.trim
if (postTxt.nonEmpty) {
userPersonalPosts.getOrElseUpdate(currentUserId, mutable.ListBuffer()) += ("- " + postTxt)
postInput.setText("")
reloadMyPosts()
}
}
})
rightPanel.add(Box.createVerticalStrut(5))
rightPanel.add(new JScrollPane(myPostsArea))
rightPanel.revalidate()
rightPanel.repaint()
}
setupRightPanel()
// Send Message Action for Live Chat
val sendAction = new ActionListener {
override def actionPerformed(e: ActionEvent): Unit = {
val text = msgField.getText.trim
if (text.nonEmpty && selectedTargetUser.nonEmpty) {
val chatKey = if (currentUserId < selectedTargetUser) (currentUserId, selectedTargetUser) else (selectedTargetUser, currentUserId)
val history = chatHistories.getOrElseUpdate(chatKey, mutable.ListBuffer[(String, String)]())
history += ((currentUserId, text))
reloadChatArea()
msgField.setText("")
}
}
}
sendMsgBtn.addActionListener(sendAction)
msgField.addActionListener(sendAction)
add(usersScroll, BorderLayout.WEST)
add(centerPanel, BorderLayout.CENTER)
add(rightScroll, BorderLayout.EAST)
refreshOnlineUsers()
}
// Start Login Window
SwingUtilities.invokeLater(new Runnable {
def run(): Unit = {
new LoginFrame().setVisible(true)
}
})
