// When double clicked on a user
private void listBox1_MouseDoubleClick(object sender, MouseEventArgs e)
{
string send_to = listBox1.SelectedItem.ToString();
// If a private chat with that user is not initiated and the cliked user is not this client.
if (!activeChats.Contains(send_to) && !username.Equals(send_to))
{
// Activate chat
PrivateChatForm privateForm = new PrivateChatForm(send_to, username, this);
// Add chat to acive chats
activeChats.Add(send_to, privateForm);
privateForm.showForm();
}
else if (activeChats.Contains(send_to))
{
// If chat is already active
PrivateChatForm privateForm = (PrivateChatForm)activeChats[send_to];
// If the private chat window is not open, open it.
if (!privateForm.isActive)
{
privateForm.showForm();
}
}
}
private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
{
// Take message from arguments
string message = e.UserState.ToString();
// If the server had sent the new users list
if (message.StartsWith("!users"))
{
listBox1.Items.Clear();
// Update user list
string[] users = message.Split(new char[0], StringSplitOptions.RemoveEmptyEntries);
for (int i = 1; i < users.Length; i++)
{
// Add all new users given from the server to the list box
listBox1.Items.Add(users[i]);
}
}
// If the message should be displayed on the rich text box
else if (message.StartsWith("!dispText"))
{
richTextBox1.SelectionColor = Color.Black;
richTextBox1.AppendText($"{message.Remove(0, 9)}\n");
}
// If someone had connected to the server
else if (message.StartsWith("!rc"))
{
// Display connection message in green.
richTextBox1.SelectionColor = Color.Green;
richTextBox1.AppendText($"{message.Remove(0, 4)}\n");
// Split the message by white spaces to decode
string[] elements = message.Split(new char[0], StringSplitOptions.RemoveEmptyEntries);
string rc_user = elements[1];
// If a user reconnects to the chat and has private chats activate them.
if (activeChats.Contains(rc_user))
{
// If chat is already active
PrivateChatForm privateForm = (PrivateChatForm)activeChats[rc_user];
privateForm.activateChat();
}
}
// If someone had disconnected from the server
else if (message.StartsWith("!dc"))
{
// Display disconnection message in red.
richTextBox1.SelectionColor = Color.Red;
richTextBox1.AppendText($"{message.Remove(0, 4)}\n");
string[] elements = message.Split(new char[0], StringSplitOptions.RemoveEmptyEntries);
string dc_user = elements[1];
// Some user has disconnected, therefore all private chats with that user are disabled
if (activeChats.Contains(dc_user))
{
// If chat is already active
PrivateChatForm privateForm = (PrivateChatForm)activeChats[dc_user];
privateForm.deactivateChat();
}
}
// If a private message is sent to the client
else if (message.StartsWith("!pm"))
{
string[] elements = message.Split(new char[0], StringSplitOptions.RemoveEmptyEntries);
string sent_by = elements[2];
string message_body = "";
// Create the message body from the decoded message (as it was split)
for (int i = 3; i < elements.Length; i++)
{
message_body += elements[i] + " ";
}
if (activeChats.ContainsKey(sent_by))
{
// If chat is already active
PrivateChatForm privateForm = (PrivateChatForm)activeChats[sent_by];
// If the private chat window is not open, open it.
if (!privateForm.isActive)
{
privateForm.showForm();
}
// Call displayMessage() on the PrivateForm to display the new message
privateForm.displayMessage(message_body);
}
else
{
// Activate chat
PrivateChatForm privateForm = new PrivateChatForm(sent_by, username, message_body, this);
// Add chat to acive chats
activeChats.Add(sent_by, privateForm);
// Open private chat window
privateForm.Show();
}
}
}
