MARKUS

using System.Windows;

using System.Windows.Input;

using Telerik.Windows.Controls;

namespace KCOM.Controls

{

    public static class PasswordBoxUtilities

    {   

        public static readonly DependencyProperty IsFocusedProperty =

            DependencyProperty.RegisterAttached(

                "IsFocused", 

                typeof(bool), 

                typeof(PasswordBoxUtilities),

                new PropertyMetadata(OnIsFocusedChanged));        

        public static readonly DependencyProperty SendPasswordToPromptResultProperty =

            DependencyProperty.RegisterAttached(

                "SendPasswordToPromptResult", 

                typeof(bool), 

                typeof(PasswordBoxUtilities), 

                new PropertyMetadata(OnSendPasswordToPromptResult));

        public static bool GetIsFocused(DependencyObject obj)

        {

            return (bool)obj.GetValue(IsFocusedProperty);

        }

        public static void SetIsFocused(DependencyObject obj, bool value)

        {

            obj.SetValue(IsFocusedProperty, value);

        }

        public static bool GetSendPasswordToPromptResult(DependencyObject obj)

        {

            return (bool)obj.GetValue(SendPasswordToPromptResultProperty);

        }

        public static void SetSendPasswordToPromptResult(DependencyObject obj, bool value)

        {

            obj.SetValue(SendPasswordToPromptResultProperty, value);

        }

        private static void OnIsFocusedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

        {

            var passBox = (RadPasswordBox)d;

            passBox.Tag = e.NewValue;

            if (passBox.IsLoaded)

            {

                SetFocus(passBox);

            }

            else

            {

                passBox.Loaded += PassBox_Loaded;

            }

        }

        private static void OnSendPasswordToPromptResult(DependencyObject d, DependencyPropertyChangedEventArgs e)

        {

            var passBox = (RadPasswordBox)d;

            passBox.PasswordChanged -= PassBox_PasswordChanged;

            if ((bool)e.NewValue)

            {

                passBox.PasswordChanged += PassBox_PasswordChanged;

            }            

        }

        private static void SetFocus(RadPasswordBox passBox)

        {

            if (passBox.Tag != null && passBox.Tag is bool)

            {

                var isFocused = (bool)passBox.Tag;

                if (isFocused)

                {

                    Focus(passBox);

                }

                else

                {

                    RemoveFocus(passBox);

                }

            }

        }

        private static void Focus(RadPasswordBox passBox)

        {

            passBox.Focus();

        }

        private static void RemoveFocus(RadPasswordBox passBox)

        {

            if (passBox.IsFocused)

            {

                Keyboard.ClearFocus();

            }

        }

        private static void PassBox_Loaded(object sender, RoutedEventArgs e)

        {

            var passBox = (RadPasswordBox)sender;

            SetFocus(passBox);

            passBox.Loaded -= PassBox_Loaded;

        }

        private static void PassBox_PasswordChanged(object sender, RoutedEventArgs e)

        {

            var passBox = (RadPasswordBox)sender;

            var prompt = passBox.ParentOfType<RadPrompt>();

            prompt.PromptResult = passBox.Password;

        }

    }

}