CEFSharp Demo Proj 2

using CefSharp.WinForms;
using CefSharp;

namespace CefSharpDemo;

public partial class mainForm : Form
{ 
    public mainForm()
    {
        mainForm.CheckForIllegalCrossThreadCalls = true;
        InitializeComponent();
    }

    private const string baseURL = "http://localhost/CefSharpDemo";

    private static Dictionary<string, string> URL = new Dictionary<string, string>()
    {
        { "LOGIN", baseURL + "/login.php" },
        { "DASH", baseURL + "/dashboard.php" }
    };

    public ChromiumWebBrowser browser = new ChromiumWebBrowser("");

    private void InitBrowser()
    {
        this.Controls.Add(browser);
        browser.JavascriptMessageReceived += OnBrowserJavaScriptMessageReceived;
        browser.Dock = DockStyle.Fill;
    }

    private void OnBrowserJavaScriptMessageReceived(object? sender, JavascriptMessageReceivedEventArgs e)
    {
        MessageBox.Show(e.Message.ToString());
    }

    private void mainForm_Load(object sender, EventArgs e)
    {

    }

    private void btnLogin_Click(object sender, EventArgs e)
    {
        if (string.IsNullOrEmpty(txtUsername.Text) || string.IsNullOrEmpty(txtPassword.Text))
        {
            return;
        }

        InitBrowser();

        browser.FrameLoadEnd += (s, args) =>
        {
            if (args.Frame.Url == URL["LOGIN"])
            {
                if (args.Frame.IsMain)
                {
                    args.Frame.ExecuteJavaScriptAsync("document.getElementById('username').value = '" + txtUsername.Text + "';");
                    args.Frame.ExecuteJavaScriptAsync("document.getElementById('password').value = '" + txtPassword.Text + "';");
                    args.Frame.ExecuteJavaScriptAsync("document.getElementById('login').click();");

                }
            }
        };

        browser.LoadingStateChanged += (s, args) =>
        {
            if (!args.IsLoading)
            {
                System.Diagnostics.Debug.WriteLine(browser.Address);

                if (browser.Address.Contains("?loginError"))
                {
                    string errorMessage = browser.Address.Split("=")[1];
                    MessageBox.Show(errorMessage);

                    this.Controls.Remove(browser);

                    browser = new ChromiumWebBrowser(URL["LOGIN"]);

                    return;
                }
                else if (browser.Address == URL["DASH"])
                {
                    MessageBox.Show("Login successful!");
                    browser.BringToFront();
                }
            }
        };
    }


}