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+using MediaBrowser.Model.DTO;
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+using MediaBrowser.UI.Controller;
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+using MediaBrowser.UI.Controls;
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+using System;
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+using System.ComponentModel;
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+using System.Linq;
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+using System.Threading;
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+using System.Windows;
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+using System.Windows.Controls;
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+using System.Windows.Input;
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+using System.Windows.Media.Animation;
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+using System.Windows.Media.Imaging;
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+
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+namespace MediaBrowser.UI
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+{
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+ /// <summary>
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+ /// Interaction logic for MainWindow.xaml
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+ /// </summary>
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+ public partial class MainWindow : Window, INotifyPropertyChanged
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+ {
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+ private Timer MouseIdleTimer { get; set; }
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+ private Timer BackdropTimer { get; set; }
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+ private Image BackdropImage { get; set; }
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+ private string[] CurrentBackdrops { get; set; }
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+ private int CurrentBackdropIndex { get; set; }
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+
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+ public MainWindow()
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+ {
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+ InitializeComponent();
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+
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+ BackButton.Click += BtnApplicationBackClick;
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+ ExitButton.Click += ExitButtonClick;
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+ ForwardButton.Click += ForwardButtonClick;
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+ DragBar.MouseDown += DragableGridMouseDown;
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+ Loaded += MainWindowLoaded;
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+ }
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+
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+ public event PropertyChangedEventHandler PropertyChanged;
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+
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+ public void OnPropertyChanged(String info)
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+ {
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+ if (PropertyChanged != null)
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+ {
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+ PropertyChanged(this, new PropertyChangedEventArgs(info));
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+ }
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+ }
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+
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+ private bool _isMouseIdle = true;
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+ public bool IsMouseIdle
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+ {
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+ get { return _isMouseIdle; }
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+ set
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+ {
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+ _isMouseIdle = value;
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+ OnPropertyChanged("IsMouseIdle");
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+ }
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+ }
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+
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+ void MainWindowLoaded(object sender, RoutedEventArgs e)
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+ {
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+ DataContext = App.Instance;
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+
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+ if (App.Instance.ServerConfiguration == null)
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+ {
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+ App.Instance.PropertyChanged += ApplicationPropertyChanged;
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+ }
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+ else
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+ {
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+ LoadInitialPage();
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+ }
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+ }
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+
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+ void ForwardButtonClick(object sender, RoutedEventArgs e)
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+ {
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+ NavigateForward();
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+ }
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+
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+ void ExitButtonClick(object sender, RoutedEventArgs e)
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+ {
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+ Close();
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+ }
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+
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+ void ApplicationPropertyChanged(object sender, PropertyChangedEventArgs e)
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+ {
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+ if (e.PropertyName.Equals("ServerConfiguration"))
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+ {
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+ App.Instance.PropertyChanged -= ApplicationPropertyChanged;
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+ LoadInitialPage();
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+ }
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+ }
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+
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+ private async void LoadInitialPage()
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+ {
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+ await App.Instance.LogoutUser().ConfigureAwait(false);
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+ }
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+
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+ private void DragableGridMouseDown(object sender, MouseButtonEventArgs e)
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+ {
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+ if (e.ClickCount == 2)
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+ {
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+ WindowState = WindowState == WindowState.Maximized ? WindowState.Normal : WindowState.Maximized;
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+ }
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+ else if (e.LeftButton == MouseButtonState.Pressed)
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+ {
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+ DragMove();
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+ }
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+ }
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+
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+ void BtnApplicationBackClick(object sender, RoutedEventArgs e)
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+ {
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+ NavigateBack();
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+ }
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+
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+ private Frame PageFrame
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+ {
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+ get
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+ {
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+ // Finding the grid that is generated by the ControlTemplate of the Button
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+ return TreeHelper.FindChild<Frame>(PageContent, "PageFrame");
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+ }
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+ }
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+
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+ public void Navigate(Uri uri)
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+ {
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+ PageFrame.Navigate(uri);
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+ }
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+
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+ /// <summary>
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+ /// Sets the backdrop based on an ApiBaseItemWrapper
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+ /// </summary>
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+ public void SetBackdrops(DtoBaseItem item)
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+ {
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+ SetBackdrops(UIKernel.Instance.ApiClient.GetBackdropImageUrls(item, null, null, 1920, 1080));
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+ }
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+
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+ /// <summary>
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+ /// Sets the backdrop based on a list of image files
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+ /// </summary>
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+ public async void SetBackdrops(string[] backdrops)
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+ {
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+ // Don't reload the same backdrops
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+ if (CurrentBackdrops != null && backdrops.SequenceEqual(CurrentBackdrops))
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+ {
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+ return;
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+ }
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+
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+ if (BackdropTimer != null)
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+ {
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+ BackdropTimer.Dispose();
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+ }
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+
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+ BackdropGrid.Children.Clear();
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+
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+ if (backdrops.Length == 0)
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+ {
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+ CurrentBackdrops = null;
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+ return;
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+ }
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+
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+ CurrentBackdropIndex = GetFirstBackdropIndex();
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+
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+ Image image = await App.Instance.GetImage(backdrops.ElementAt(CurrentBackdropIndex));
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+ image.SetResourceReference(Image.StyleProperty, "BackdropImage");
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+
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+ BackdropGrid.Children.Add(image);
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+
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+ CurrentBackdrops = backdrops;
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+ BackdropImage = image;
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+
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+ const int backdropRotationTime = 7000;
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+
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+ if (backdrops.Count() > 1)
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+ {
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+ BackdropTimer = new Timer(BackdropTimerCallback, null, backdropRotationTime, backdropRotationTime);
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+ }
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+ }
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+
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+ public void ClearBackdrops()
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+ {
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+ if (BackdropTimer != null)
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+ {
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+ BackdropTimer.Dispose();
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+ }
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+
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+ BackdropGrid.Children.Clear();
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+
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+ CurrentBackdrops = null;
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+ }
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+
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+ private void BackdropTimerCallback(object stateInfo)
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+ {
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+ // Need to do this on the UI thread
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+ Application.Current.Dispatcher.InvokeAsync(() =>
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+ {
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+ var animFadeOut = new Storyboard();
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+ animFadeOut.Completed += AnimFadeOutCompleted;
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+
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+ var fadeOut = new DoubleAnimation();
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+ fadeOut.From = 1.0;
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+ fadeOut.To = 0.5;
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+ fadeOut.Duration = new Duration(TimeSpan.FromSeconds(1));
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+
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+ animFadeOut.Children.Add(fadeOut);
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+ Storyboard.SetTarget(fadeOut, BackdropImage);
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+ Storyboard.SetTargetProperty(fadeOut, new PropertyPath(Image.OpacityProperty));
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+
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+ animFadeOut.Begin(this);
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+ });
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+ }
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+
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+ async void AnimFadeOutCompleted(object sender, System.EventArgs e)
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+ {
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+ if (CurrentBackdrops == null)
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+ {
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+ return;
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+ }
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+
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+ int backdropIndex = GetNextBackdropIndex();
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+
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+ BitmapImage image = await App.Instance.GetBitmapImage(CurrentBackdrops[backdropIndex]);
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+ CurrentBackdropIndex = backdropIndex;
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+
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+ // Need to do this on the UI thread
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+ BackdropImage.Source = image;
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+ Storyboard imageFadeIn = new Storyboard();
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+
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+ DoubleAnimation fadeIn = new DoubleAnimation();
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+
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+ fadeIn.From = 0.25;
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+ fadeIn.To = 1.0;
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+ fadeIn.Duration = new Duration(TimeSpan.FromSeconds(1));
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+
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+ imageFadeIn.Children.Add(fadeIn);
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+ Storyboard.SetTarget(fadeIn, BackdropImage);
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+ Storyboard.SetTargetProperty(fadeIn, new PropertyPath(Image.OpacityProperty));
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+ imageFadeIn.Begin(this);
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+ }
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+
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+ private int GetFirstBackdropIndex()
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+ {
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+ return 0;
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+ }
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+
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+ private int GetNextBackdropIndex()
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+ {
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+ if (CurrentBackdropIndex < CurrentBackdrops.Length - 1)
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+ {
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+ return CurrentBackdropIndex + 1;
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+ }
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+
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+ return 0;
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+ }
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+
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+ public void NavigateBack()
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+ {
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+ if (PageFrame.NavigationService.CanGoBack)
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+ {
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+ PageFrame.NavigationService.GoBack();
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+ }
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+ }
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+
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+ public void NavigateForward()
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+ {
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+ if (PageFrame.NavigationService.CanGoForward)
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+ {
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+ PageFrame.NavigationService.GoForward();
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+ }
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+ }
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+
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+ /// <summary>
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+ /// Shows the control bar then starts a timer to hide it
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+ /// </summary>
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+ private void StartMouseIdleTimer()
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+ {
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+ IsMouseIdle = false;
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+
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+ const int duration = 10000;
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+
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+ // Start the timer if it's null, otherwise reset it
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+ if (MouseIdleTimer == null)
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+ {
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+ MouseIdleTimer = new Timer(MouseIdleTimerCallback, null, duration, Timeout.Infinite);
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+ }
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+ else
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+ {
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+ MouseIdleTimer.Change(duration, Timeout.Infinite);
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+ }
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+ }
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+
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+ /// <summary>
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+ /// This is the Timer callback method to hide the control bar
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+ /// </summary>
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+ private void MouseIdleTimerCallback(object stateInfo)
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+ {
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+ IsMouseIdle = true;
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+
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+ if (MouseIdleTimer != null)
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+ {
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+ MouseIdleTimer.Dispose();
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+ MouseIdleTimer = null;
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+ }
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+ }
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+
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+ /// <summary>
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+ /// Handles OnMouseMove to show the control box
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+ /// </summary>
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+ protected override void OnMouseMove(MouseEventArgs e)
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+ {
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+ base.OnMouseMove(e);
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+
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+ StartMouseIdleTimer();
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+ }
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+
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+ /// <summary>
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+ /// Handles OnKeyUp to provide keyboard based navigation
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+ /// </summary>
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+ protected override void OnKeyUp(KeyEventArgs e)
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+ {
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+ base.OnKeyUp(e);
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+
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+ if (IsBackPress(e))
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+ {
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+ NavigateBack();
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+ }
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+
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+ else if (IsForwardPress(e))
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+ {
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+ NavigateForward();
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+ }
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+ }
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+
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+ /// <summary>
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+ /// Determines if a keypress should be treated as a backward press
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+ /// </summary>
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+ private bool IsBackPress(KeyEventArgs e)
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+ {
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+ if (e.Key == Key.BrowserBack || e.Key == Key.Back)
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+ {
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+ return true;
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+ }
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+
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+ if (e.SystemKey == Key.Left && e.KeyboardDevice.Modifiers.HasFlag(ModifierKeys.Alt))
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+ {
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+ return true;
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+ }
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+
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+ return false;
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+ }
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+
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+ /// <summary>
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+ /// Determines if a keypress should be treated as a forward press
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+ /// </summary>
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+ private bool IsForwardPress(KeyEventArgs e)
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+ {
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+ if (e.Key == Key.BrowserForward)
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+ {
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+ return true;
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+ }
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+
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+ if (e.SystemKey == Key.RightAlt && e.KeyboardDevice.Modifiers.HasFlag(ModifierKeys.Alt))
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+ {
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+ return true;
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+ }
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+
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+ return false;
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+ }
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+ }
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+}
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