/// <summary>
/// Main view model for the BooruReader window
/// </summary>
public MainScreenVM()
: base()
{
_imageList = new ObservableCollection<BasePost>();
_previewList = new List<PrviewScreenView>();
_postFetcher = new PostsFetcher();
_threadList = new List<BasePost>();
_imageLoader = new BackgroundWorker();
_cache = new ImageCache();
DownloadList = new ObservableCollection<BasePost>();
DownloadList.CollectionChanged += DowloadList_CollectionChanged;
_imageLoader.DoWork += BackgroundLoaderWork;
_imageLoader.RunWorkerCompleted += ServerListLoadWorkerCompleted;
_imageLoader.WorkerSupportsCancellation = true;
_showedLastPageWarning = false;
//Ugly hack for settings vm
GlobalSettings.Instance.MainScreenVM = this;
SettingsOpen = false;
IsFavoritesMode = false;
_favorites = new FavoriteHandler();
InitialiseDelegates();
ProgressBarVisibility = Visibility.Hidden;
}
/// <summary>
/// Checks that the board user is adding is valid
/// </summary>
private string IsValidBooru()
{
string retval = null;
bool hadErrors = false;
try
{
if (!string.IsNullOrEmpty(CurrentSelectedBoard.Name) && !string.IsNullOrEmpty(CurrentSelectedBoard.URL))
{
CurrentSelectedBoard.URL = NormalizeURL(CurrentSelectedBoard.URL);
//Now we try and fetch a page until we get result... or an exception
PostsFetcher posts = new PostsFetcher(true);
try
{
CurrentSelectedBoard.ProviderType = ProviderAccessType.DanbooruV2;
if (posts.GetImages(1).Count > 0)
hadErrors = false;
}
catch
{
hadErrors = true;
}
if (hadErrors)
{
try
{
CurrentSelectedBoard.ProviderType = ProviderAccessType.XML;
if (posts.GetImages(1).Count > 0)
hadErrors = false;
}
catch
{
hadErrors = true;
}
}
if (hadErrors)
{
try
{
CurrentSelectedBoard.ProviderType = ProviderAccessType.JSON;
if (posts.GetImages(1).Count > 0)
hadErrors = false;
}
catch
{
hadErrors = true;
}
}
if (hadErrors)
{
try
{
CurrentSelectedBoard.ProviderType = ProviderAccessType.Gelbooru;
if (posts.GetImages(1).Count > 0)
hadErrors = false;
}
catch
{
hadErrors = true;
}
}
if (hadErrors)
retval = "Invalid or unsupported booru.";
}
else
{
hadErrors = true;
retval = "Enter address and name.";
}
}
catch
{
hadErrors = true;
retval = "Invalid or unsupported booru.";
}
finally
{
if (!hadErrors)
retval = null;
}
return retval;
}