OfficeTool/Pages/ConfirmDialog.xaml.cs

using System;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;

namespace InstaSoftOfficeTool.Pages
{
    public partial class ConfirmDialog : UserControl
    {
        private TaskCompletionSource<bool> _tcs;

        public ConfirmDialog()
        {
            InitializeComponent();
        }

        public Task<bool> ShowAsync(string title, string message,
            string confirmText = "Igen", string cancelText = "M\u00e9gse",
            DialogType type = DialogType.Warning)
        {
            DialogTitle.Text = title;
            DialogMessage.Text = message;
            BtnConfirm.Content = confirmText;
            BtnCancel.Content = cancelText;

            switch (type)
            {
                case DialogType.Warning:
                    DialogIcon.Text = "\uE7BA";
                    DialogIcon.Foreground = (Brush)FindResource("WarningBrush");
                    break;
                case DialogType.Question:
                    DialogIcon.Text = "\uE9CE";
                    DialogIcon.Foreground = (Brush)FindResource("AccentBrush");
                    break;
                case DialogType.Error:
                    DialogIcon.Text = "\uE711";
                    DialogIcon.Foreground = (Brush)FindResource("ErrorBrush");
                    break;
            }

            Visibility = Visibility.Visible;
            _tcs = new TaskCompletionSource<bool>();
            return _tcs.Task;
        }

        private void BtnConfirm_Click(object sender, RoutedEventArgs e)
        {
            Visibility = Visibility.Collapsed;
            _tcs?.TrySetResult(true);
        }

        private void BtnCancel_Click(object sender, RoutedEventArgs e)
        {
            Visibility = Visibility.Collapsed;
            _tcs?.TrySetResult(false);
        }

        private void Backdrop_MouseDown(object sender, MouseButtonEventArgs e)
        {
            // click outside = cancel
            Visibility = Visibility.Collapsed;
            _tcs?.TrySetResult(false);
        }
    }

    public enum DialogType
    {
        Warning,
        Question,
        Error
    }
}