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osu-lazer/osu.Game/Screens/OnlinePlay/Components/ListingPollingComponent.cs
2020-12-25 16:50:09 +01:00

70 lines
2.0 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System.Threading.Tasks;
using osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Game.Online.Rooms;
using osu.Game.Screens.OnlinePlay.Lounge.Components;
namespace osu.Game.Screens.OnlinePlay.Components
{
/// <summary>
/// A <see cref="RoomPollingComponent"/> that polls for the lounge listing.
/// </summary>
public class ListingPollingComponent : RoomPollingComponent
{
[Resolved]
private Bindable<FilterCriteria> currentFilter { get; set; }
[Resolved]
private Bindable<Room> selectedRoom { get; set; }
[BackgroundDependencyLoader]
private void load()
{
currentFilter.BindValueChanged(_ =>
{
NotifyRoomsReceived(null);
if (IsLoaded)
PollImmediately();
});
}
private GetRoomsRequest pollReq;
protected override Task Poll()
{
if (!API.IsLoggedIn)
return base.Poll();
var tcs = new TaskCompletionSource<bool>();
pollReq?.Cancel();
pollReq = new GetRoomsRequest(currentFilter.Value.Status, currentFilter.Value.Category);
pollReq.Success += result =>
{
for (int i = 0; i < result.Count; i++)
{
if (result[i].RoomID.Value == selectedRoom.Value?.RoomID.Value)
{
// The listing request always has less information than the opened room, so don't include it.
result[i] = selectedRoom.Value;
break;
}
}
NotifyRoomsReceived(result);
tcs.SetResult(true);
};
pollReq.Failure += _ => tcs.SetResult(false);
API.Queue(pollReq);
return tcs.Task;
}
}
}