DreamineMessageBox.cs

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using System.Windows;
 
namespace Dreamine.UI.Wpf.Controls.MessageBox
{
    public static class DreamineMessageBox
    {
        private static class State
        {
            private static bool _isOpen;
            private static string? _lastTitle;
            private static string? _lastMessage;
            private static MessageBoxImage _lastIcon;
            private static MessageBoxButton _lastButtons;

            public static bool IsOpen
            {
                get => _isOpen;
                set => _isOpen = value;
            }

            public static string? LastTitle
            {
                get => _lastTitle;
                set => _lastTitle = value;
            }

            public static string? LastMessage
            {
                get => _lastMessage;
                set => _lastMessage = value;
            }

            public static MessageBoxImage LastIcon
            {
                get => _lastIcon;
                set => _lastIcon = value;
            }

            public static MessageBoxButton LastButtons
            {
                get => _lastButtons;
                set => _lastButtons = value;
            }

            public static bool IsSame(string title, string message, MessageBoxImage icon, MessageBoxButton buttons) =>
                IsOpen &&
                LastTitle == title &&
                LastMessage == message &&
                LastIcon == icon &&
                LastButtons == buttons;
        }

        private static Window? GetActiveWindow()
        {
            return Application.Current.Windows
                .OfType<Window>()
                .FirstOrDefault(w => w.IsActive);
        }

        private static object _lock = new object();

        public static MessageBoxResult Show(
            string message,
            string title = "Information",
            MessageBoxButton buttons = MessageBoxButton.OK,
            MessageBoxImage icon = MessageBoxImage.None,
            MessageBoxResult autoClick = MessageBoxResult.None, int autoClickDelaySeconds = 0, int enableDelaySeconds = 0)
        {
            return Application.Current.Dispatcher.Invoke(() =>
            {
                var msgBox = new DreamineMessageBoxWindow(title, message, icon, buttons, autoClick, autoClickDelaySeconds, enableDelaySeconds)
                {
                    Owner = GetActiveWindow()
                };
                msgBox.ShowDialog();
                return msgBox.Result;
            });
        }

        public static void ShowAsync(string message, string title = "Information",
            MessageBoxButton buttons = MessageBoxButton.OK,
            MessageBoxImage icon = MessageBoxImage.None,
            Action<MessageBoxResult>? callback = null,
            MessageBoxResult autoClick = MessageBoxResult.None, int autoClickDelaySeconds = 0, int enableDelaySeconds = 0)
        {
            if (State.IsSame(title, message, icon, buttons))
                return;
 
            State.IsOpen = true;
            State.LastTitle = title;
            State.LastMessage = message;
            State.LastIcon = icon;
            State.LastButtons = buttons;
 
            Application.Current.Dispatcher.BeginInvoke(() =>
            {
                try
                {
                    var msgBox = new DreamineMessageBoxWindow(title, message, icon, buttons, autoClick, autoClickDelaySeconds, enableDelaySeconds)
                    {
                        Owner = GetActiveWindow()
                    };
                    msgBox.ShowDialog();
                    callback?.Invoke(msgBox.Result);
                }
                finally
                {
                    State.IsOpen = false;
                    State.LastTitle = null;
                    State.LastMessage = null;
                }
            });
        }
    }
}