namespace PlumCONF2.Utils.Behaviours
{
    public class PasswordBoxBehavior : Behavior<PasswordBox>
    {
        public bool ResetPassword
        {
            get { return (bool)GetValue(ResetPasswordProperty); }
            set { SetValue(ResetPasswordProperty, value); }
        }

        // Using a DependencyProperty as the backing store for ResetPassword.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty ResetPasswordProperty =
            DependencyProperty.Register("ResetPassword", typeof(bool), typeof(PasswordBoxBehavior), new FrameworkPropertyMetadata(false, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault, OnResetPasswordChanged));

        static void OnResetPasswordChanged(DependencyObject depObj, DependencyPropertyChangedEventArgs e)
        {
            PasswordBoxBehavior behavior = depObj as PasswordBoxBehavior;
            PasswordBox item = behavior.AssociatedObject as PasswordBox;
            if (item == null)
                return;

            if ((bool)e.NewValue)
                item.Password = string.Empty;

            behavior.ResetPassword = false;
        }

        private bool isRoutedEventHandlerAssign;
        public string Text
        {
            get { return (string)GetValue(TextProperty); }
            set { SetValue(TextProperty, value); }
        }

        // Using a DependencyProperty as the backing store for Text.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty TextProperty =
            DependencyProperty.Register("Text", typeof(string), typeof(PasswordBoxBehavior), new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault, OnTextChanged));

        static void OnTextChanged(DependencyObject depObj, DependencyPropertyChangedEventArgs e)
        {
            PasswordBoxBehavior behavior = depObj as PasswordBoxBehavior;
            PasswordBox item = behavior.AssociatedObject as PasswordBox;
            if (item == null)
                return;

            if (item.Password != e.NewValue as string)
            {
                item.Password = e.NewValue as string;
            }

            if (!behavior.isRoutedEventHandlerAssign)
            {
                item.PasswordChanged += (sender, eArg) =>
                {
                    behavior.Text = item.Password;
                };
                behavior.isRoutedEventHandlerAssign = true;
            }
        }

        public PasswordBoxBehavior()
        {
        }
    }
}