protected override void CreateDisplayToLoad(RankingsScope tab)
{
lastRequest?.Cancel();
if (Header.Current.Value == RankingsScope.Spotlights)
{
LoadDisplay(new SpotlightsLayout
{
Ruleset = { BindTarget = ruleset }
});
return;
}
var request = createScopedRequest();
lastRequest = request;
if (request == null)
{
LoadDisplay(Empty());
return;
}
request.Success += () => Schedule(() => LoadDisplay(createTableFromResponse(request)));
request.Failure += _ => Schedule(() => LoadDisplay(Empty()));
api.Queue(request);
}
private void loadNewContent()
{
loading.Show();
cancellationToken?.Cancel();
lastRequest?.Cancel();
if (Scope.Value == RankingsScope.Spotlights)
{
loadContent(new SpotlightsLayout
{
Ruleset = { BindTarget = ruleset }
});
return;
}
var request = createScopedRequest();
lastRequest = request;
if (request == null)
{
loadContent(null);
return;
}
request.Success += () => Schedule(() => loadContent(createTableFromResponse(request)));
request.Failure += _ => Schedule(() => loadContent(null));
api.Queue(request);
}
/// <summary>
/// Force a re-request for data from the API.
/// </summary>
protected void PerformFetch()
{
request?.Cancel();
request = CreateRequest();
request.Success += response => Schedule(() => OnSuccess(response));
API.Queue(request);
}
private void onUserChanged(ValueChangedEvent <User> e)
{
loadCancellation?.Cancel();
retrievalRequest?.Cancel();
VisiblePages = 0;
ItemsContainer.Clear();
if (e.NewValue != null)
{
showMore();
}
}
private void onUserChanged(ValueChangedEvent <APIUser> e)
{
loadCancellation?.Cancel();
retrievalRequest?.Cancel();
CurrentPage = null;
ItemsContainer.Clear();
if (e.NewValue != null)
{
showMore();
SetCount(GetCount(e.NewValue));
}
}
private void onLoadStarted()
{
loading.Show();
request?.Cancel();
cancellationToken?.Cancel();
cancellationToken = new CancellationTokenSource();
}
private void updateSearch()
{
queryChangedDebounce?.Cancel();
if (!IsLoaded)
{
return;
}
Users = null;
clearPanels();
loading.Hide();
getUsersRequest?.Cancel();
if (api?.IsLoggedIn != true)
{
return;
}
switch (Header.Tabs.Current.Value)
{
case SocialTab.Friends:
var friendRequest = new GetFriendsRequest(); // TODO filter arguments?
friendRequest.Success += updateUsers;
api.Queue(getUsersRequest = friendRequest);
break;
default:
var userRequest = new GetUsersRequest(); // TODO filter arguments!
userRequest.Success += response => updateUsers(response.Select(r => r.User));
api.Queue(getUsersRequest = userRequest);
break;
}
loading.Show();
}
protected void UpdateScores()
{
// don't display any scores or placeholder until the first Scores_Set has been called.
// this avoids scope changes flickering a "no scores" placeholder before initialisation of song select is finished.
if (!scoresLoadedOnce)
{
return;
}
getScoresRequest?.Cancel();
getScoresRequest = null;
pendingUpdateScores?.Cancel();
pendingUpdateScores = Schedule(() =>
{
if (api?.IsLoggedIn != true)
{
PlaceholderState = PlaceholderState.NotLoggedIn;
return;
}
PlaceholderState = PlaceholderState.Retrieving;
loading.Show();
getScoresRequest = FetchScores(scores => Schedule(() =>
{
Scores = scores;
PlaceholderState = Scores.Any() ? PlaceholderState.Successful : PlaceholderState.NoScores;
}));
if (getScoresRequest == null)
{
return;
}
getScoresRequest.Failure += e => Schedule(() =>
{
if (e is OperationCanceledException)
{
return;
}
PlaceholderState = PlaceholderState.NetworkFailure;
});
api.Queue(getScoresRequest);
});
}
private void loadNewContent()
{
loading.Show();
cancellationToken?.Cancel();
lastRequest?.Cancel();
var request = createScopedRequest();
lastRequest = request;
if (request == null)
{
loadTable(null);
return;
}
request.Success += () => loadTable(createTableFromResponse(request));
request.Failure += _ => loadTable(null);
api.Queue(request);
}