/// <summary>
/// Invoked, when the favorites -page is navigated to and updates
/// the favorites list if invoked with drag'n'drop URL from the
/// web-browser.
/// </summary>
/// <param name="e"></param>
protected override void OnNavigatedTo(NavigationEventArgs e)
{
string parameter = e.Parameter as string;
if (!String.IsNullOrEmpty(parameter))
{
YtWebInterface webIf = new YtWebInterface();
webIf.UpdateInfo(parameter);
}
}
/// <summary>
/// Updates individual channel.
/// </summary>
private async void btnUpdateVideo_Click(object sender, RoutedEventArgs e)
{
var tag = ((Button)sender).Tag;
ObservableCollection <YtLocalFavChannelList> YtFavoritesList = ((App)Application.Current).GetFavoritesList();
YtLocalFavChannelList videoInfo = new YtLocalFavChannelList();
YtWebInterface webIf = new YtWebInterface();
videoInfo = await webIf.GetYtChannelVideoList(tag.ToString());
YtLocalFavChannelList channelItem = YtFavoritesList.Where(i => i.channelId.Equals(tag.ToString())).Single();
int videoIndex = YtFavoritesList.IndexOf(channelItem);
if (YtFavoritesList[videoIndex].videoId != videoInfo.videoId)
{
YtFavoritesList[videoIndex].imagePath = videoInfo.imagePath;
YtFavoritesList[videoIndex].publishedAt = videoInfo.publishedAt;
YtFavoritesList[videoIndex].videoId = videoInfo.videoId;
YtFavoritesList[videoIndex].videoTitle = videoInfo.videoTitle;
((App)Application.Current).SetFavoritesList(YtFavoritesList);
ImgNewIcon.Visibility = Visibility.Visible;
}
}
/// <summary>
/// Refreshes all channels in the favorites list.
/// </summary>
private async void RefeshAllChannels()
{
try
{
YtWebInterface webIf = new YtWebInterface();
ObservableCollection <YtLocalFavChannelList> YtFavoritesList;
YtFavoritesList = ((App)Application.Current).GetFavoritesList();
bool updated = false;
// Null check.
if (YtFavoritesList == null)
{
throw new Exception("Cannot update empty favorites list, please add channels first.");
}
// Start progress ring animation.
ProgressRing.Visibility = Visibility.Visible;
ProgressRing.IsActive = true;
// Update favorites list items and check that the video id is really changed.
for (int i = 0; i < YtFavoritesList.Count; i++)
{
YtLocalFavChannelList videoInfo = new YtLocalFavChannelList();
videoInfo = await webIf.GetYtChannelVideoList(YtFavoritesList[i].channelId);
if (YtFavoritesList[i].videoId != videoInfo.videoId)
{
updated = true;
YtFavoritesList[i].imagePath = videoInfo.imagePath;
YtFavoritesList[i].publishedAt = videoInfo.publishedAt;
YtFavoritesList[i].videoId = videoInfo.videoId;
YtFavoritesList[i].videoTitle = videoInfo.videoTitle;
YtFavoritesList[i].isNew = true;
}
}
// Update the list if there has been updates in the list.
if (updated)
{
((App)Application.Current).SetFavoritesList(YtFavoritesList);
ProgressRing.Visibility = Visibility.Collapsed;
ProgressRing.IsActive = false;
ContentFrame.Navigate(typeof(FavoritesPage));
}
else
{
ProgressRing.Visibility = Visibility.Collapsed;
ProgressRing.IsActive = false;
if (isVideoListUpdatedOnStartup == false)
{
ContentFrame.Visibility = Visibility.Visible;
ContentFrame.Navigate(typeof(FavoritesPage));
}
}
// Disable auto-update after the startup.
isVideoListUpdatedOnStartup = true;
}
catch (Exception exp)
{
((App)Application.Current).ShowErrorMessage(exp.Message);
}
finally
{
isVideoListUpdatedOnStartup = true;
}
}