protected override void Update()
{
INewsCollector newsCollector = ServiceRegistration.Get <INewsCollector>(false);
if (newsCollector != null)
{
NewsItem newNewsItem = newsCollector.GetRandomNewsItem();
if (newNewsItem != null)
{
newNewsItem.CopyTo(CurrentNewsItem);
// Decrease interval once we have the first item
ChangeInterval(NEWSITEM_UPDATE_INTERVAL);
}
}
}
public void Refresh()
{
INewsCollector newsCollector = ServiceRegistration.Get <INewsCollector>(false);
if (newsCollector != null)
{
NewsItem newNewsItem = newsCollector.GetRandomNewsItem();
if (newNewsItem != null)
{
newNewsItem.CopyTo(CurrentNewsItem);
var feeds = newsCollector.GetAllFeeds().OrderByDescending(f => f.LastUpdated);
//Only update if changed
if (!feeds.Select(f => f.LastUpdated).SequenceEqual(_currentFeedItems.Select(f => (f as NewsFeed)?.LastUpdated ?? DateTime.Now)))
{
_currentFeedItems.Clear();
foreach (var feed in feeds)
{
feed.Command = new AsyncMethodDelegateCommand(() => ShowNews(feed));
_currentFeedItems.Add(feed);
}
_currentFeedItems.FireChange();
}
var items = newsCollector.GetAllNewsItems().OrderByDescending(i => i.PublishDate);
//Only update if changed
if (!items.Select(i => i.PublishDate).SequenceEqual(_currentNewsItems.Select(i => (i as NewsItem)?.PublishDate ?? DateTime.Now)))
{
_currentNewsItems.Clear();
_currentTopNewsItems.Clear();
foreach (var newsItem in items)
{
newsItem.Command = new AsyncMethodDelegateCommand(() => ShowNews(newsItem));
_currentNewsItems.Add(newsItem);
if (_currentTopNewsItems.Count < NEWSITEM_TOP_COUNT)
{
_currentTopNewsItems.Add(newsItem);
}
}
_currentNewsItems.FireChange();
_currentTopNewsItems.FireChange();
}
}
}
}