Implement MultiplayerComposite, replaces RoomBindings

osu.Game/Screens/Multi/MultiplayerComposite.cs

@@ -0,0 +1,89 @@
+// 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;
+using System.Collections.Generic;
+using System.Linq;
+using osu.Framework.Allocation;
+using osu.Framework.Configuration;
+using osu.Framework.Graphics.Containers;
+using osu.Game.Beatmaps;
+using osu.Game.Online.Multiplayer;
+using osu.Game.Rulesets;
+using osu.Game.Rulesets.Mods;
+using osu.Game.Users;
+
+namespace osu.Game.Screens.Multi
+{
+    public class MultiplayerComposite : CompositeDrawable
+    {
+        [Resolved]
+        public Room Room { get; private set; }
+
+        [Resolved(typeof(Room))]
+        public Bindable<int?> RoomID { get; private set; }
+
+        [Resolved(typeof(Room))]
+        public Bindable<string> Name { get; private set; }
+
+        [Resolved(typeof(Room))]
+        public Bindable<User> Host { get; private set; }
+
+        [Resolved(typeof(Room))]
+        public Bindable<RoomStatus> Status { get; private set; }
+
+        [Resolved(typeof(Room))]
+        public Bindable<GameType> Type { get; private set; }
+
+        [Resolved(typeof(Room))]
+        public BindableList<PlaylistItem> Playlist { get; private set; }
+
+        [Resolved(typeof(Room))]
+        public Bindable<IEnumerable<User>> Participants { get; private set; }
+
+        [Resolved(typeof(Room))]
+        public Bindable<int> ParticipantCount { get; private set; }
+
+        [Resolved(typeof(Room))]
+        public Bindable<int?> MaxParticipants { get; private set; }
+
+        [Resolved(typeof(Room))]
+        public Bindable<DateTimeOffset> EndDate { get; private set; }
+
+        [Resolved(typeof(Room))]
+        public Bindable<RoomAvailability> Availability { get; private set; }
+
+        [Resolved(typeof(Room))]
+        public Bindable<TimeSpan> Duration { get; private set; }
+
+        private readonly Bindable<BeatmapInfo> currentBeatmap = new Bindable<BeatmapInfo>();
+        public IBindable<BeatmapInfo> CurrentBeatmap => currentBeatmap;
+
+        private readonly Bindable<IEnumerable<Mod>> currentMods = new Bindable<IEnumerable<Mod>>();
+        public IBindable<IEnumerable<Mod>> CurrentMods => currentMods;
+
+        private readonly Bindable<RulesetInfo> currentRuleset = new Bindable<RulesetInfo>();
+        public IBindable<RulesetInfo> CurrentRuleset => currentRuleset;
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            Playlist.ItemsAdded += _ => updatePlaylist();
+            Playlist.ItemsRemoved += _ => updatePlaylist();
+
+            updatePlaylist();
+        }
+
+        private void updatePlaylist()
+        {
+            // Todo: We only ever have one playlist item for now. In the future, this will be user-settable
+
+            var playlistItem = Playlist.FirstOrDefault();
+
+            currentBeatmap.Value = playlistItem?.Beatmap;
+            currentMods.Value = playlistItem?.RequiredMods ?? Enumerable.Empty<Mod>();
+            currentRuleset.Value = playlistItem?.Ruleset;
+        }
+    }
+}