public FeedListPanoramaItemViewModel(NewsSite newsSite, IFeedDataService feedDataService)
: base()
{
NewsSite = newsSite;
FeedDataService = feedDataService;
if (null != newsSite.ImageUrl)
{
HeaderImageUrl = newsSite.ImageUrl;
}
else
{
HeaderText = newsSite.Name;
}
Items = new ObservableCollection<FeedItem>();
RefreshCommand = new RelayCommand(() => FeedDataService.GetFeedItems(NewsSite.FeedUrl,
(feedItems, exception) =>
{
if (null != exception)
{
Debug.WriteLine(exception.ToString());
}
else
{
Items = new ObservableCollection<FeedItem>();
foreach (var feedItem in feedItems)
{
Items.Add(feedItem);
}
}
}
));
}
public MainViewModel(IFeedDataService feedDataService)
{
FeedDataService = feedDataService;
// Configure behaviors
FeedDataService.PropertyChanged += delegate(Object sender, PropertyChangedEventArgs e)
{
if ("RequestsCount" == e.PropertyName)
{
IsLoading = FeedDataService.RequestsCount > 0;
}
};
RefreshCommand = new RelayCommand(() =>
{
if (!IsLoading)
{
foreach (var panoramaItem in PanoramaItems)
{
if (panoramaItem is FeedListPanoramaItemViewModel)
{
var feedListPanoramaItem = panoramaItem as FeedListPanoramaItemViewModel;
feedListPanoramaItem.RefreshCommand.Execute(null);
}
}
}
});
NavigateToAboutCommand = new RelayCommand(() => Messenger.Default.Send<Uri>(new Uri("/View/About.xaml", UriKind.Relative), "NavigationRequest"));
// Configure panorama items/data
var siteLeParisien = new NewsSite()
{
Name = "Le parisien",
ImageUrl = "http://t2.gstatic.com/images?q=tbn:ANd9GcTEo1dBnDfqQpSuHz3qXgUImPbqqyx74rOgv01ZAYbD2oUzq6BG",
Url = "http://www.leparisien.fr",
FeedUrl = "http://rss.leparisien.fr/leparisien/rss/actualites-a-la-une.xml"
};
var siteLeMonde = new NewsSite()
{
Name = "Le monde",
ImageUrl = "http://t1.gstatic.com/images?q=tbn:ANd9GcQUuiOAOZ_XdyAFEFHpmeD8Bef4S7yXtr8UGRIeO-5qFz7ArlIikA",
Url = "http://www.lemonde.fr",
FeedUrl = "http://rss.lemonde.fr/c/205/f/3050/index.rss"
};
var siteLeFigaro = new NewsSite()
{
Name = "Le Figaro",
ImageUrl = "http://t1.gstatic.com/images?q=tbn:ANd9GcQQynnyb0aBX5wbcfekFPp-RbgR_NqJ8imXW9y0WkYb0zjj7byN",
Url = "http://www.lefigaro.fr",
FeedUrl = "http://rss.lefigaro.fr/lefigaro/laune"
};
PanoramaItems = new ObservableCollection<PanoramaItemViewModelBase>()
{
new FeedGridPanoramaItemViewModel(FeedDataService),
new FeedListPanoramaItemViewModel(siteLeParisien, FeedDataService),
new FeedListPanoramaItemViewModel(siteLeMonde, FeedDataService),
new FeedListPanoramaItemViewModel(siteLeFigaro, FeedDataService)
};
// Trigger the refresh command
RefreshCommand.Execute(null);
}