Passive MVP -Cocoa/MonoMac Code Example

namespace MonoMac.Views.Bootstrap
{
    public class BootstrapView : NSWindow, IBootstrapView
    {
        public BootstrapView ()
        {
            Initialize ();
        }

        #region Initialization
        /// <summary>
        /// Show this instance.
        /// </summary>
        public void Show()
        {
            MakeKeyAndOrderFront(this);
            if (StartBootstrap != null) {
                StartBootstrap ();
            }
        }

        /// <summary>
        /// Initializes the view and it's controls.
        /// </summary>
        private void Initialize()
        {
            // Initialize window.
            InitializeWindow();

            // Initialize controls.
            InitializeControls();

            // Centers the window.
            Center();
        }

        /// <summary>
        /// Initializes the window.
        /// </summary>
        private void InitializeWindow ()
        {
            StyleMask = NSWindowStyle.Titled;
            SetContentSize (new SizeF (505, 54));
        }


        /// <summary>
        /// Initializes the controls.
        /// </summary>
        private void InitializeControls()
        {
            var padding = 10;

            // Progress Message
            uxProgressMessage = Controls.CreateLabel ("%uxProgressMessage%", 16);
            this.AddControl (uxProgressMessage, padding + 32, padding + 8);

            // Progress Spinner
            uxProgress = Controls.CreateProgressSpinner (18, 18);
            this.AddControl (uxProgress, padding + 8, padding + 8);

            // Quit Button
            uxQuit = Controls.CreateButton ("Afsluiten");
            uxQuit.Activated += uxQuit_Activated;
            this.AddControl (uxQuit, (int)(ContentView.Frame.Width - padding - uxQuit.Frame.Width), padding + 5);
        }
        private NSTextField uxProgressMessage;
        private NSProgressIndicator uxProgress;
        private NSButton uxQuit;
        #endregion

        #region IBootstrapView
        public event QuitApplicationEventHandler QuitApplication;
        private void uxQuit_Activated(object sender, EventArgs e)
        {
            if (QuitApplication != null) {
                QuitApplication (this, new ActionEventArgs(() => NSApplication.SharedApplication.Terminate(this)));
            }
        }
        public event StartBootstrapEventHandler StartBootstrap;
        public event ShowDebugInfoEventHandler ShowDebugInfo;
        public ProgressInfo Progress {
            set {
                uxProgressMessage.StringValue = value.Message;
                uxProgressMessage.SizeToFit ();

                if (!value.IsIndeterminate) {
                    uxProgress.Indeterminate = false;
                    uxProgress.MinValue = value.Range.Minimum;
                    uxProgress.MaxValue = value.Range.Maximum;
                    uxProgress.DoubleValue = value.Progress;
                }
            }
        }
        #endregion
    }
}