104 lines
3.3 KiB
C#
104 lines
3.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Threading.Tasks;
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using Windows.Foundation;
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using Windows.Foundation.Collections;
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using Windows.UI.Xaml;
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using Windows.UI.Xaml.Controls;
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using Windows.UI.Xaml.Controls.Primitives;
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using Windows.UI.Xaml.Data;
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using Windows.UI.Xaml.Input;
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using Windows.UI.Xaml.Media;
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using Windows.UI.Xaml.Navigation;
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// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238
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namespace DrumKit
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{
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/// <summary>
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/// An empty page that can be used on its own or navigated to within a Frame.
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/// </summary>
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public sealed partial class LoadingPage : Page
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{
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public LoadingPage()
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{
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this.InitializeComponent();
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}
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/// <summary>
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/// Invoked when this page is about to be displayed in a Frame.
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/// </summary>
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/// <param name="e">Event data that describes how this page was reached. The Parameter
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/// property is typically used to configure the page.</param>
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protected override void OnNavigatedTo(NavigationEventArgs e)
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{
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LoadStuff(e.Parameter);
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}
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private async Task DoFactoryReset()
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{
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DataController.Dispose();
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await DataController.FactoryReset();
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}
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/// <summary>
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/// Performs the loading of the application stuff.
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/// </summary>
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/// <param name="arg"></param>
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private async void LoadStuff(object arg)
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{
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bool error = false;
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DataController.ProgressChanged += DataController_ProgressChanged;
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// Application restart?
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if (arg is string && (string) arg == "restart")
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DataController.Dispose();
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// Factory reset?
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if (arg is string && (string) arg == "reset")
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await DoFactoryReset();
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// Perform initializations
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try {
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await DataController.Initialize();
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Frame.Navigate(typeof(MainPage));
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}
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// Error handling
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catch (Exception ex) {
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error = true;
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Log.Error("Failure during loading!");
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Log.Except(ex);
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}
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if (error) {
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var dialog = new Windows.UI.Popups.MessageDialog("A problem occurred, and the application could not be loaded.", "An error occurred!");
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dialog.Commands.Add(new Windows.UI.Popups.UICommand("Close", new Windows.UI.Popups.UICommandInvokedHandler(UICommandCloseHandler)));
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dialog.CancelCommandIndex = dialog.DefaultCommandIndex = 0;
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await dialog.ShowAsync();
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}
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}
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/// <summary>
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/// Application failed to load
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/// </summary>
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private async void UICommandCloseHandler(Windows.UI.Popups.IUICommand cmd)
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{
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await System.Threading.Tasks.Task.Delay(1000);
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Windows.ApplicationModel.Core.CoreApplication.Exit();
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}
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/// <summary>
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/// Progress event
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/// </summary>
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void DataController_ProgressChanged(object sender, KeyValuePair<int, string> e)
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{
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progressBar.Value = e.Key;
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textLoading.Text = e.Value;
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}
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}
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}
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