private void ClearSearchArea()
{
//There is a fundamenal Architectural Mistake in the project in terms of Search Header hide/show logic in the SearchView
//If SearchGroupTabs is not initialized after a search is performed - the search header is never visible, therefore a dummy initialization is necessary after an external search.
SearchGroupTabs = new TabsByName(new ObservableCollection <TabEntity>(new List <TabEntity>()), Database);
this.CurrentTypedText = this.CurrentSearchText = null;
HeaderPagingVisibility = Visibility.Collapsed;
}
protected override void DataBind()
{
AllTabs = new TabsByName(Database);
Groups = new BandByName(Database);
TabsHistory = new TabsForHistory(6, Database);
AssignBackGroundImageFromLastTab();
SelectedItemIds = new List <int>();
}
private void SearchCompletedHandler(System.Net.DownloadStringCompletedEventArgs e)
{
SearchGroupTabs = null;
//TODO examine e.Error
if (e.Error == null)
{
var groupTabs = _tabSearcher.Entries.Where(FilterTab).
Select(entry => new TabEntity
{
SearchId = entry.Id,
SearchUrl = entry.Url,
Name = entry.Name,
Group = entry.Artist,
Rating = entry.Rating,
Type = entry.Type,
ImageUrl = Database.GetTabTypeByName(entry.Type).ImageUrl,
Votes = entry.Votes,
Version = entry.Version
});
if (_sortOrder == ResultsSortOrder.Popularity)
{
var artistName = CurrentSearchText.TransLiterate();
var grouped = groupTabs.Where(t => t.Group.TransLiterate() == artistName).OrderByDescending(t => t.Votes);
IsNothingPopularFound = !grouped.Any();
SearchPopularTabs = new ObservableCollection <TabEntity>(grouped.Take(100));
Deployment.Current.Dispatcher.BeginInvoke(() => { IsSearching = false; });
//Clear the Search Area (for the Search Page)
this.ClearSearchArea();
}
else
{
IsNothingFound = !groupTabs.Any();
Pages = Enumerable.Range(1, _tabSearcher.Summary.PageCount).Select(p => p.ToString());
SearchGroupTabs = new TabsByName(new ObservableCollection <TabEntity>(groupTabs), Database);
Deployment.Current.Dispatcher.BeginInvoke(
() =>
{
if (Pages.Any())
{
SelectedPage = Pages.ElementAt(CurrentPageIndex - 1);
}
RaisePropertyChanged("SelectedPage");
AssignHeaderPagingUI(_tabSearcher.Summary.PageCount);
IsSearching = false;
});
}
}
else
{
IsSearching = false;
ClearSearchArea();
Dialog.Show(AppResources.Search_Sorry, AppResources.Search_ServerUnavailable);
}
}
public SearchViewModel(IMediaSearcherFactory mediaSearcherFactory, ITabSearcher tabSearcher, ConfigService configService, IDataContextService database, MessageHub hub)
: base(database, hub)
{
_tabSearcher = tabSearcher;
_configService = configService;
_mediaSearcherFactory = mediaSearcherFactory;
CurrentPageIndex = 1;
CurrentSearchText = String.Empty;
HeaderPagingVisibility = Visibility.Collapsed;
_searchGroupTabs = new TabsByName(database, true);
CreateCommands();
RegisterEvents();
SetConfigVariables();
}
