FoxTube/FoxTube/Controls/ContentFrame.xaml.cs

using FoxTube.Classes;
using System;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Navigation;

namespace FoxTube.Controls
{
    public sealed partial class ContentFrame : UserControl
    {
        public Frame Frame => content;
        public LoadingPage LoadingPage => loading;
        public event NavigatedEventHandler Navigated;

        public new object Content => content.Content;

        public ContentFrame()
        {
            InitializeComponent();
            content.Navigated += (s, e) => Navigated?.Invoke(s, e);
        }

        public void Navigate(Type sourcePageType, object parameter) =>
            content.Navigate(sourcePageType, parameter);

        void Content_Navigating(object sender, NavigatingCancelEventArgs e) =>
            loading.Refresh();

        void Loading_RefreshPage(object sender, RoutedEventArgs e)
        {
            content.Navigate(content.CurrentSourcePageType, (content.Content as INavigationPage).Parameter);
            content.BackStack.RemoveAt(content.BackStack.Count - 1);
        }

        public void Refresh() =>
            Loading_RefreshPage(this, null);
    }
}