From ffed642929e7ec23ba8e3c60c252a9d0522c9327 Mon Sep 17 00:00:00 2001
From: Andrei Zavatski <megaman9919@gmail.com>
Date: Thu, 8 Aug 2019 07:08:51 +0300
Subject: [PATCH] Implement MatchBeatmapPanel

---
 .../Screens/Multi/Match/Components/Header.cs  | 16 ++++++
 .../Match/Components/MatchBeatmapPanel.cs     | 49 +++++++++++++++++++
 .../Screens/Multi/Match/MatchSubScreen.cs     |  2 +
 3 files changed, 67 insertions(+)
 create mode 100644 osu.Game/Screens/Multi/Match/Components/MatchBeatmapPanel.cs

diff --git a/osu.Game/Screens/Multi/Match/Components/Header.cs b/osu.Game/Screens/Multi/Match/Components/Header.cs
index 73994fa369..629a19e5e8 100644
--- a/osu.Game/Screens/Multi/Match/Components/Header.cs
+++ b/osu.Game/Screens/Multi/Match/Components/Header.cs
@@ -29,6 +29,10 @@ namespace osu.Game.Screens.Multi.Match.Components
 
         public Action RequestBeatmapSelection;
 
+        public BindableBool ShowBeatmapPanel = new BindableBool();
+
+        private MatchBeatmapPanel beatmapPanel;
+
         public Header()
         {
             RelativeSizeAxes = Axes.X;
@@ -55,6 +59,12 @@ namespace osu.Game.Screens.Multi.Match.Components
                             RelativeSizeAxes = Axes.Both,
                             Colour = ColourInfo.GradientVertical(Color4.Black.Opacity(0.4f), Color4.Black.Opacity(0.6f)),
                         },
+                        beatmapPanel = new MatchBeatmapPanel
+                        {
+                            Anchor = Anchor.CentreRight,
+                            Origin = Anchor.CentreRight,
+                            Margin = new MarginPadding { Right = 100 },
+                        }
                     }
                 },
                 new Box
@@ -114,6 +124,12 @@ namespace osu.Game.Screens.Multi.Match.Components
             beatmapButton.Action = () => RequestBeatmapSelection?.Invoke();
         }
 
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+            ShowBeatmapPanel.BindValueChanged(value => beatmapPanel.FadeTo(value.NewValue ? 1 : 0, 200, Easing.OutQuint), true);
+        }
+
         private class BeatmapSelectButton : HeaderButton
         {
             [Resolved(typeof(Room), nameof(Room.RoomID))]
diff --git a/osu.Game/Screens/Multi/Match/Components/MatchBeatmapPanel.cs b/osu.Game/Screens/Multi/Match/Components/MatchBeatmapPanel.cs
new file mode 100644
index 0000000000..916115f11b
--- /dev/null
+++ b/osu.Game/Screens/Multi/Match/Components/MatchBeatmapPanel.cs
@@ -0,0 +1,49 @@
+// 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 osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Game.Online.API;
+using osu.Game.Online.API.Requests;
+using osu.Game.Overlays.Direct;
+using osu.Game.Rulesets;
+
+namespace osu.Game.Screens.Multi.Match.Components
+{
+    public class MatchBeatmapPanel : MultiplayerComposite
+    {
+        [Resolved]
+        private IAPIProvider api { get; set; }
+
+        [Resolved]
+        private RulesetStore rulesets { get; set; }
+
+        private GetBeatmapSetRequest request;
+
+        public MatchBeatmapPanel()
+        {
+            AutoSizeAxes = Axes.Both;
+        }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            CurrentItem.BindValueChanged(item =>
+            {
+                var id = item.NewValue?.Beatmap.OnlineBeatmapID ?? 0;
+
+                if (id != 0)
+                {
+                    request?.Cancel();
+                    request = new GetBeatmapSetRequest(id, BeatmapSetLookupType.BeatmapId);
+                    request.Success += beatmap =>
+                    {
+                        ClearInternal();
+                        AddInternal(new DirectGridPanel(beatmap.ToBeatmapSet(rulesets)));
+                    };
+                    api.Queue(request);
+                }
+            }, true);
+        }
+    }
+}
diff --git a/osu.Game/Screens/Multi/Match/MatchSubScreen.cs b/osu.Game/Screens/Multi/Match/MatchSubScreen.cs
index 5469d4c8c8..16c6b412fa 100644
--- a/osu.Game/Screens/Multi/Match/MatchSubScreen.cs
+++ b/osu.Game/Screens/Multi/Match/MatchSubScreen.cs
@@ -148,12 +148,14 @@ namespace osu.Game.Screens.Multi.Match
 
                 if (tab.NewValue is SettingsMatchPage)
                 {
+                    header.ShowBeatmapPanel.Value = false;
                     settings.Show();
                     info.FadeOut(fade_duration, Easing.OutQuint);
                     bottomRow.FadeOut(fade_duration, Easing.OutQuint);
                 }
                 else
                 {
+                    header.ShowBeatmapPanel.Value = true;
                     settings.Hide();
                     info.FadeIn(fade_duration, Easing.OutQuint);
                     bottomRow.FadeIn(fade_duration, Easing.OutQuint);