Merge branch 'master' into reuse-framework-exclusuion-function

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+    - name: osu!stable issues
+      url: https://github.com/ppy/osu-stable-issues
+      about: For issues regarding osu!stable (not osu!lazer), open them here.

.github/ISSUE_TEMPLATE/missing-for-live-issues.md

@@ -1,7 +0,0 @@
----
-name: Missing for Live
-about: Features which are available in osu!stable but not yet in osu!lazer.
----
-**Describe the missing feature:** 
-
-**Proposal designs of the feature:** 

osu.Game.Rulesets.Osu.Tests/TestSceneSliderSelectionBlueprint.cs

@@ -16,6 +16,7 @@ using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.Osu.Objects.Drawables;
 using osu.Game.Tests.Visual;
 using osuTK;
+using osuTK.Input;
 
 namespace osu.Game.Rulesets.Osu.Tests
 {
@@ -85,6 +86,93 @@ namespace osu.Game.Rulesets.Osu.Tests
             checkPositions();
         }
 
+        [Test]
+        public void TestSingleControlPointSelection()
+        {
+            moveMouseToControlPoint(0);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            checkControlPointSelected(0, true);
+            checkControlPointSelected(1, false);
+        }
+
+        [Test]
+        public void TestSingleControlPointDeselectionViaOtherControlPoint()
+        {
+            moveMouseToControlPoint(0);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+
+            moveMouseToControlPoint(1);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            checkControlPointSelected(0, false);
+            checkControlPointSelected(1, true);
+        }
+
+        [Test]
+        public void TestSingleControlPointDeselectionViaClickOutside()
+        {
+            moveMouseToControlPoint(0);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+
+            AddStep("move mouse outside control point", () => InputManager.MoveMouseTo(drawableObject));
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            checkControlPointSelected(0, false);
+            checkControlPointSelected(1, false);
+        }
+
+        [Test]
+        public void TestMultipleControlPointSelection()
+        {
+            moveMouseToControlPoint(0);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            moveMouseToControlPoint(1);
+            AddStep("ctrl + click", () =>
+            {
+                InputManager.PressKey(Key.ControlLeft);
+                InputManager.Click(MouseButton.Left);
+                InputManager.ReleaseKey(Key.ControlLeft);
+            });
+            checkControlPointSelected(0, true);
+            checkControlPointSelected(1, true);
+        }
+
+        [Test]
+        public void TestMultipleControlPointDeselectionViaOtherControlPoint()
+        {
+            moveMouseToControlPoint(0);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            moveMouseToControlPoint(1);
+            AddStep("ctrl + click", () =>
+            {
+                InputManager.PressKey(Key.ControlLeft);
+                InputManager.Click(MouseButton.Left);
+                InputManager.ReleaseKey(Key.ControlLeft);
+            });
+
+            moveMouseToControlPoint(2);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            checkControlPointSelected(0, false);
+            checkControlPointSelected(1, false);
+        }
+
+        [Test]
+        public void TestMultipleControlPointDeselectionViaClickOutside()
+        {
+            moveMouseToControlPoint(0);
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            moveMouseToControlPoint(1);
+            AddStep("ctrl + click", () =>
+            {
+                InputManager.PressKey(Key.ControlLeft);
+                InputManager.Click(MouseButton.Left);
+                InputManager.ReleaseKey(Key.ControlLeft);
+            });
+
+            AddStep("move mouse outside control point", () => InputManager.MoveMouseTo(drawableObject));
+            AddStep("click", () => InputManager.Click(MouseButton.Left));
+            checkControlPointSelected(0, false);
+            checkControlPointSelected(1, false);
+        }
+
         private void moveHitObject()
         {
             AddStep("move hitobject", () =>
@@ -104,11 +192,24 @@ namespace osu.Game.Rulesets.Osu.Tests
                 () => Precision.AlmostEquals(blueprint.TailBlueprint.CirclePiece.ScreenSpaceDrawQuad.Centre, drawableObject.TailCircle.ScreenSpaceDrawQuad.Centre));
         }
 
+        private void moveMouseToControlPoint(int index)
+        {
+            AddStep($"move mouse to control point {index}", () =>
+            {
+                Vector2 position = slider.Position + slider.Path.ControlPoints[index];
+                InputManager.MoveMouseTo(drawableObject.Parent.ToScreenSpace(position));
+            });
+        }
+
+        private void checkControlPointSelected(int index, bool selected)
+            => AddAssert($"control point {index} {(selected ? "selected" : "not selected")}", () => blueprint.ControlPointVisualiser.Pieces[index].IsSelected.Value == selected);
+
         private class TestSliderBlueprint : SliderSelectionBlueprint
         {
             public new SliderBodyPiece BodyPiece => base.BodyPiece;
             public new TestSliderCircleBlueprint HeadBlueprint => (TestSliderCircleBlueprint)base.HeadBlueprint;
             public new TestSliderCircleBlueprint TailBlueprint => (TestSliderCircleBlueprint)base.TailBlueprint;
+            public new PathControlPointVisualiser ControlPointVisualiser => base.ControlPointVisualiser;
 
             public TestSliderBlueprint(DrawableSlider slider)
                 : base(slider)

osu.Game.Rulesets.Osu/Edit/Blueprints/Sliders/Components/PathControlPointPiece.cs

@@ -3,6 +3,7 @@
 
 using System;
 using osu.Framework.Allocation;
+using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Lines;
@@ -11,18 +12,22 @@ using osu.Framework.Input.Events;
 using osu.Game.Graphics;
 using osu.Game.Rulesets.Osu.Objects;
 using osuTK;
+using osuTK.Graphics;
 
 namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
 {
     public class PathControlPointPiece : BlueprintPiece<Slider>
     {
+        public Action<int> RequestSelection;
         public Action<Vector2[]> ControlPointsChanged;
 
-        private readonly Slider slider;
-        private readonly int index;
+        public readonly BindableBool IsSelected = new BindableBool();
+        public readonly int Index;
 
+        private readonly Slider slider;
         private readonly Path path;
-        private readonly CircularContainer marker;
+        private readonly Container marker;
+        private readonly Drawable markerRing;
 
         [Resolved]
         private OsuColour colours { get; set; }
@@ -30,7 +35,7 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
         public PathControlPointPiece(Slider slider, int index)
         {
             this.slider = slider;
-            this.index = index;
+            Index = index;
 
             Origin = Anchor.Centre;
             AutoSizeAxes = Axes.Both;
@@ -42,13 +47,36 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
                     Anchor = Anchor.Centre,
                     PathRadius = 1
                 },
-                marker = new CircularContainer
+                marker = new Container
                 {
                     Anchor = Anchor.Centre,
                     Origin = Anchor.Centre,
-                    Size = new Vector2(10),
-                    Masking = true,
-                    Child = new Box { RelativeSizeAxes = Axes.Both }
+                    AutoSizeAxes = Axes.Both,
+                    Children = new[]
+                    {
+                        new Circle
+                        {
+                            Anchor = Anchor.Centre,
+                            Origin = Anchor.Centre,
+                            Size = new Vector2(10),
+                        },
+                        markerRing = new CircularContainer
+                        {
+                            Anchor = Anchor.Centre,
+                            Origin = Anchor.Centre,
+                            Size = new Vector2(14),
+                            Masking = true,
+                            BorderThickness = 2,
+                            BorderColour = Color4.White,
+                            Alpha = 0,
+                            Child = new Box
+                            {
+                                RelativeSizeAxes = Axes.Both,
+                                Alpha = 0,
+                                AlwaysPresent = true
+                            }
+                        }
+                    }
                 }
             };
         }
@@ -57,30 +85,66 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
         {
             base.Update();
 
-            Position = slider.StackedPosition + slider.Path.ControlPoints[index];
+            Position = slider.StackedPosition + slider.Path.ControlPoints[Index];
 
-            marker.Colour = isSegmentSeparator ? colours.Red : colours.Yellow;
+            updateMarkerDisplay();
+            updateConnectingPath();
+        }
 
+        /// <summary>
+        /// Updates the state of the circular control point marker.
+        /// </summary>
+        private void updateMarkerDisplay()
+        {
+            markerRing.Alpha = IsSelected.Value ? 1 : 0;
+
+            Color4 colour = isSegmentSeparator ? colours.Red : colours.Yellow;
+            if (IsHovered || IsSelected.Value)
+                colour = Color4.White;
+            marker.Colour = colour;
+        }
+
+        /// <summary>
+        /// Updates the path connecting this control point to the previous one.
+        /// </summary>
+        private void updateConnectingPath()
+        {
             path.ClearVertices();
 
-            if (index != slider.Path.ControlPoints.Length - 1)
+            if (Index != slider.Path.ControlPoints.Length - 1)
             {
                 path.AddVertex(Vector2.Zero);
-                path.AddVertex(slider.Path.ControlPoints[index + 1] - slider.Path.ControlPoints[index]);
+                path.AddVertex(slider.Path.ControlPoints[Index + 1] - slider.Path.ControlPoints[Index]);
             }
 
             path.OriginPosition = path.PositionInBoundingBox(Vector2.Zero);
         }
 
+        // The connecting path is excluded from positional input
         public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => marker.ReceivePositionalInputAt(screenSpacePos);
 
+        protected override bool OnMouseDown(MouseDownEvent e)
+        {
+            if (RequestSelection != null)
+            {
+                RequestSelection.Invoke(Index);
+                return true;
+            }
+
+            return false;
+        }
+
+        protected override bool OnMouseUp(MouseUpEvent e) => RequestSelection != null;
+
+        protected override bool OnClick(ClickEvent e) => RequestSelection != null;
+
         protected override bool OnDragStart(DragStartEvent e) => true;
 
         protected override bool OnDrag(DragEvent e)
         {
             var newControlPoints = slider.Path.ControlPoints.ToArray();
 
-            if (index == 0)
+            if (Index == 0)
             {
                 // Special handling for the head - only the position of the slider changes
                 slider.Position += e.Delta;
@@ -90,13 +154,13 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
                     newControlPoints[i] -= e.Delta;
             }
             else
-                newControlPoints[index] += e.Delta;
+                newControlPoints[Index] += e.Delta;
 
             if (isSegmentSeparatorWithNext)
-                newControlPoints[index + 1] = newControlPoints[index];
+                newControlPoints[Index + 1] = newControlPoints[Index];
 
             if (isSegmentSeparatorWithPrevious)
-                newControlPoints[index - 1] = newControlPoints[index];
+                newControlPoints[Index - 1] = newControlPoints[Index];
 
             ControlPointsChanged?.Invoke(newControlPoints);
 
@@ -107,8 +171,8 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
 
         private bool isSegmentSeparator => isSegmentSeparatorWithNext || isSegmentSeparatorWithPrevious;
 
-        private bool isSegmentSeparatorWithNext => index < slider.Path.ControlPoints.Length - 1 && slider.Path.ControlPoints[index + 1] == slider.Path.ControlPoints[index];
+        private bool isSegmentSeparatorWithNext => Index < slider.Path.ControlPoints.Length - 1 && slider.Path.ControlPoints[Index + 1] == slider.Path.ControlPoints[Index];
 
-        private bool isSegmentSeparatorWithPrevious => index > 0 && slider.Path.ControlPoints[index - 1] == slider.Path.ControlPoints[index];
+        private bool isSegmentSeparatorWithPrevious => Index > 0 && slider.Path.ControlPoints[Index - 1] == slider.Path.ControlPoints[Index];
     }
 }

osu.Game.Rulesets.Osu/Edit/Blueprints/Sliders/Components/PathControlPointVisualiser.cs

@@ -4,6 +4,8 @@
 using System;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
+using osu.Framework.Input;
+using osu.Framework.Input.Events;
 using osu.Game.Rulesets.Osu.Objects;
 using osuTK;
 
@@ -13,25 +15,66 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders.Components
     {
         public Action<Vector2[]> ControlPointsChanged;
 
+        internal readonly Container<PathControlPointPiece> Pieces;
         private readonly Slider slider;
+        private readonly bool allowSelection;
 
-        private readonly Container<PathControlPointPiece> pieces;
+        private InputManager inputManager;
 
-        public PathControlPointVisualiser(Slider slider)
+        public PathControlPointVisualiser(Slider slider, bool allowSelection)
         {
             this.slider = slider;
+            this.allowSelection = allowSelection;
 
-            InternalChild = pieces = new Container<PathControlPointPiece> { RelativeSizeAxes = Axes.Both };
+            RelativeSizeAxes = Axes.Both;
+
+            InternalChild = Pieces = new Container<PathControlPointPiece> { RelativeSizeAxes = Axes.Both };
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            inputManager = GetContainingInputManager();
         }
 
         protected override void Update()
         {
             base.Update();
 
-            while (slider.Path.ControlPoints.Length > pieces.Count)
-                pieces.Add(new PathControlPointPiece(slider, pieces.Count) { ControlPointsChanged = c => ControlPointsChanged?.Invoke(c) });
-            while (slider.Path.ControlPoints.Length < pieces.Count)
-                pieces.Remove(pieces[pieces.Count - 1]);
+            while (slider.Path.ControlPoints.Length > Pieces.Count)
+            {
+                var piece = new PathControlPointPiece(slider, Pieces.Count)
+                {
+                    ControlPointsChanged = c => ControlPointsChanged?.Invoke(c),
+                };
+
+                if (allowSelection)
+                    piece.RequestSelection = selectPiece;
+
+                Pieces.Add(piece);
+            }
+
+            while (slider.Path.ControlPoints.Length < Pieces.Count)
+                Pieces.Remove(Pieces[Pieces.Count - 1]);
+        }
+
+        protected override bool OnClick(ClickEvent e)
+        {
+            foreach (var piece in Pieces)
+                piece.IsSelected.Value = false;
+            return false;
+        }
+
+        private void selectPiece(int index)
+        {
+            if (inputManager.CurrentState.Keyboard.ControlPressed)
+                Pieces[index].IsSelected.Toggle();
+            else
+            {
+                foreach (var piece in Pieces)
+                    piece.IsSelected.Value = piece.Index == index;
+            }
         }
     }
 }

osu.Game.Rulesets.Osu/Edit/Blueprints/Sliders/SliderPlacementBlueprint.cs

@@ -51,7 +51,7 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders
                 bodyPiece = new SliderBodyPiece(),
                 headCirclePiece = new HitCirclePiece(),
                 tailCirclePiece = new HitCirclePiece(),
-                new PathControlPointVisualiser(HitObject) { ControlPointsChanged = _ => updateSlider() },
+                new PathControlPointVisualiser(HitObject, false) { ControlPointsChanged = _ => updateSlider() },
             };
 
             setState(PlacementState.Initial);

osu.Game.Rulesets.Osu/Edit/Blueprints/Sliders/SliderSelectionBlueprint.cs

@@ -18,6 +18,7 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders
         protected readonly SliderBodyPiece BodyPiece;
         protected readonly SliderCircleSelectionBlueprint HeadBlueprint;
         protected readonly SliderCircleSelectionBlueprint TailBlueprint;
+        protected readonly PathControlPointVisualiser ControlPointVisualiser;
 
         [Resolved(CanBeNull = true)]
         private HitObjectComposer composer { get; set; }
@@ -32,7 +33,7 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders
                 BodyPiece = new SliderBodyPiece(),
                 HeadBlueprint = CreateCircleSelectionBlueprint(slider, SliderPosition.Start),
                 TailBlueprint = CreateCircleSelectionBlueprint(slider, SliderPosition.End),
-                new PathControlPointVisualiser(sliderObject) { ControlPointsChanged = onNewControlPoints },
+                ControlPointVisualiser = new PathControlPointVisualiser(sliderObject, true) { ControlPointsChanged = onNewControlPoints },
             };
         }
 
@@ -49,6 +50,8 @@ namespace osu.Game.Rulesets.Osu.Edit.Blueprints.Sliders
             var snappedDistance = composer?.GetSnappedDistanceFromDistance(HitObject.StartTime, (float)unsnappedPath.Distance) ?? (float)unsnappedPath.Distance;
 
             HitObject.Path = new SliderPath(unsnappedPath.Type, controlPoints, snappedDistance);
+
+            UpdateHitObject();
         }
 
         public override Vector2 SelectionPoint => HeadBlueprint.SelectionPoint;

osu.Game.Rulesets.Osu/Objects/Slider.cs

@@ -37,6 +37,8 @@ namespace osu.Game.Rulesets.Osu.Objects
             {
                 PathBindable.Value = value;
                 endPositionCache.Invalidate();
+
+                updateNestedPositions();
             }
         }
 
@@ -48,14 +50,9 @@ namespace osu.Game.Rulesets.Osu.Objects
             set
             {
                 base.Position = value;
-
                 endPositionCache.Invalidate();
 
-                if (HeadCircle != null)
-                    HeadCircle.Position = value;
-
-                if (TailCircle != null)
-                    TailCircle.Position = EndPosition;
+                updateNestedPositions();
             }
         }
 
@@ -197,6 +194,15 @@ namespace osu.Game.Rulesets.Osu.Objects
             }
         }
 
+        private void updateNestedPositions()
+        {
+            if (HeadCircle != null)
+                HeadCircle.Position = Position;
+
+            if (TailCircle != null)
+                TailCircle.Position = EndPosition;
+        }
+
         private List<HitSampleInfo> getNodeSamples(int nodeIndex) =>
             nodeIndex < NodeSamples.Count ? NodeSamples[nodeIndex] : Samples;
 

osu.Game.Rulesets.Osu/UI/OsuResumeOverlay.cs

@@ -38,9 +38,10 @@ namespace osu.Game.Rulesets.Osu.UI
             });
         }
 
-        public override void Show()
+        protected override void PopIn()
         {
-            base.Show();
+            base.PopIn();
+
             GameplayCursor.ActiveCursor.Hide();
             cursorScaleContainer.MoveTo(GameplayCursor.ActiveCursor.Position);
             clickToResumeCursor.Appear();
@@ -55,13 +56,13 @@ namespace osu.Game.Rulesets.Osu.UI
             }
         }
 
-        public override void Hide()
+        protected override void PopOut()
         {
+            base.PopOut();
+
             localCursorContainer?.Expire();
             localCursorContainer = null;
-            GameplayCursor.ActiveCursor.Show();
-
-            base.Hide();
+            GameplayCursor?.ActiveCursor?.Show();
         }
 
         protected override bool OnHover(HoverEvent e) => true;

osu.Game.Tests/Visual/Gameplay/TestScenePause.cs

@@ -69,6 +69,24 @@ namespace osu.Game.Tests.Visual.Gameplay
             confirmClockRunning(true);
         }
 
+        [Test]
+        public void TestPauseWithResumeOverlay()
+        {
+            AddStep("move cursor to center", () => InputManager.MoveMouseTo(Player.ScreenSpaceDrawQuad.Centre));
+            AddUntilStep("wait for hitobjects", () => Player.ScoreProcessor.Health.Value < 1);
+
+            pauseAndConfirm();
+
+            resume();
+            confirmClockRunning(false);
+            confirmPauseOverlayShown(false);
+
+            pauseAndConfirm();
+
+            AddUntilStep("resume overlay is not active", () => Player.DrawableRuleset.ResumeOverlay.State.Value == Visibility.Hidden);
+            confirmPaused();
+        }
+
         [Test]
         public void TestResumeWithResumeOverlaySkipped()
         {

osu.Game.Tests/Visual/Gameplay/TestSceneReplayDownloadButton.cs

@@ -7,11 +7,10 @@ using osu.Game.Online;
 using osu.Game.Online.API.Requests.Responses;
 using osu.Game.Rulesets.Osu;
 using osu.Game.Scoring;
-using osu.Game.Screens.Play;
 using osu.Game.Users;
-using osuTK;
 using System;
 using System.Collections.Generic;
+using osu.Game.Screens.Ranking.Pages;
 
 namespace osu.Game.Tests.Visual.Gameplay
 {
@@ -42,7 +41,6 @@ namespace osu.Game.Tests.Visual.Gameplay
                 {
                     Anchor = Anchor.Centre,
                     Origin = Anchor.Centre,
-                    Size = new Vector2(80, 40),
                 };
             });
         }

osu.Game.Tests/Visual/Gameplay/TestSceneResults.cs

@@ -3,11 +3,16 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using NUnit.Framework;
 using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Screens;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Scoring;
 using osu.Game.Scoring;
+using osu.Game.Screens;
 using osu.Game.Screens.Play;
 using osu.Game.Screens.Ranking;
 using osu.Game.Screens.Ranking.Pages;
@@ -22,11 +27,13 @@ namespace osu.Game.Tests.Visual.Gameplay
 
         public override IReadOnlyList<Type> RequiredTypes => new[]
         {
-            typeof(ScoreInfo),
             typeof(Results),
             typeof(ResultsPage),
             typeof(ScoreResultsPage),
-            typeof(LocalLeaderboardPage)
+            typeof(RetryButton),
+            typeof(ReplayDownloadButton),
+            typeof(LocalLeaderboardPage),
+            typeof(TestPlayer)
         };
 
         [BackgroundDependencyLoader]
@@ -42,26 +49,82 @@ namespace osu.Game.Tests.Visual.Gameplay
             var beatmapInfo = beatmaps.QueryBeatmap(b => b.RulesetID == 0);
             if (beatmapInfo != null)
                 Beatmap.Value = beatmaps.GetWorkingBeatmap(beatmapInfo);
+        }
 
-            LoadScreen(new SoloResults(new ScoreInfo
+        private TestSoloResults createResultsScreen() => new TestSoloResults(new ScoreInfo
+        {
+            TotalScore = 2845370,
+            Accuracy = 0.98,
+            MaxCombo = 123,
+            Rank = ScoreRank.A,
+            Date = DateTimeOffset.Now,
+            Statistics = new Dictionary<HitResult, int>
             {
-                TotalScore = 2845370,
-                Accuracy = 0.98,
-                MaxCombo = 123,
-                Rank = ScoreRank.A,
-                Date = DateTimeOffset.Now,
-                Statistics = new Dictionary<HitResult, int>
+                { HitResult.Great, 50 },
+                { HitResult.Good, 20 },
+                { HitResult.Meh, 50 },
+                { HitResult.Miss, 1 }
+            },
+            User = new User
+            {
+                Username = "peppy",
+            }
+        });
+
+        [Test]
+        public void ResultsWithoutPlayer()
+        {
+            TestSoloResults screen = null;
+
+            AddStep("load results", () => Child = new OsuScreenStack(screen = createResultsScreen())
+            {
+                RelativeSizeAxes = Axes.Both
+            });
+            AddUntilStep("wait for loaded", () => screen.IsLoaded);
+            AddAssert("retry overlay not present", () => screen.RetryOverlay == null);
+        }
+
+        [Test]
+        public void ResultsWithPlayer()
+        {
+            TestSoloResults screen = null;
+
+            AddStep("load results", () => Child = new TestResultsContainer(screen = createResultsScreen()));
+            AddUntilStep("wait for loaded", () => screen.IsLoaded);
+            AddAssert("retry overlay present", () => screen.RetryOverlay != null);
+        }
+
+        private class TestResultsContainer : Container
+        {
+            [Cached(typeof(Player))]
+            private readonly Player player = new TestPlayer();
+
+            public TestResultsContainer(IScreen screen)
+            {
+                RelativeSizeAxes = Axes.Both;
+
+                InternalChild = new OsuScreenStack(screen)
                 {
-                    { HitResult.Great, 50 },
-                    { HitResult.Good, 20 },
-                    { HitResult.Meh, 50 },
-                    { HitResult.Miss, 1 }
-                },
-                User = new User
-                {
-                    Username = "peppy",
-                }
-            }));
+                    RelativeSizeAxes = Axes.Both,
+                };
+            }
+        }
+
+        private class TestSoloResults : SoloResults
+        {
+            public HotkeyRetryOverlay RetryOverlay;
+
+            public TestSoloResults(ScoreInfo score)
+                : base(score)
+            {
+            }
+
+            protected override void LoadComplete()
+            {
+                base.LoadComplete();
+
+                RetryOverlay = InternalChildren.OfType<HotkeyRetryOverlay>().SingleOrDefault();
+            }
         }
     }
 }

osu.Game.Tests/Visual/Online/TestSceneBeatmapRulesetSelector.cs

@@ -0,0 +1,102 @@
+// 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 NUnit.Framework;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics.UserInterface;
+using osu.Game.Beatmaps;
+using osu.Game.Overlays.BeatmapSet;
+using osu.Game.Rulesets;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace osu.Game.Tests.Visual.Online
+{
+    public class TestSceneBeatmapRulesetSelector : OsuTestScene
+    {
+        public override IReadOnlyList<Type> RequiredTypes => new[]
+        {
+            typeof(BeatmapRulesetSelector),
+            typeof(BeatmapRulesetTabItem),
+        };
+
+        private readonly TestRulesetSelector selector;
+
+        public TestSceneBeatmapRulesetSelector()
+        {
+            Add(selector = new TestRulesetSelector());
+        }
+
+        [Resolved]
+        private RulesetStore rulesets { get; set; }
+
+        [Test]
+        public void TestMultipleRulesetsBeatmapSet()
+        {
+            var enabledRulesets = rulesets.AvailableRulesets.Skip(1).Take(2);
+
+            AddStep("load multiple rulesets beatmapset", () =>
+            {
+                selector.BeatmapSet = new BeatmapSetInfo
+                {
+                    Beatmaps = enabledRulesets.Select(r => new BeatmapInfo { Ruleset = r }).ToList()
+                };
+            });
+
+            var tabItems = selector.TabContainer.TabItems;
+            AddAssert("other rulesets disabled", () => tabItems.Except(tabItems.Where(t => enabledRulesets.Any(r => r.Equals(t.Value)))).All(t => !t.Enabled.Value));
+            AddAssert("left-most ruleset selected", () => tabItems.First(t => t.Enabled.Value).Active.Value);
+        }
+
+        [Test]
+        public void TestSingleRulesetBeatmapSet()
+        {
+            var enabledRuleset = rulesets.AvailableRulesets.Last();
+
+            AddStep("load single ruleset beatmapset", () =>
+            {
+                selector.BeatmapSet = new BeatmapSetInfo
+                {
+                    Beatmaps = new List<BeatmapInfo>
+                    {
+                        new BeatmapInfo
+                        {
+                            Ruleset = enabledRuleset
+                        }
+                    }
+                };
+            });
+
+            AddAssert("single ruleset selected", () => selector.SelectedTab.Value.Equals(enabledRuleset));
+        }
+
+        [Test]
+        public void TestEmptyBeatmapSet()
+        {
+            AddStep("load empty beatmapset", () => selector.BeatmapSet = new BeatmapSetInfo
+            {
+                Beatmaps = new List<BeatmapInfo>()
+            });
+
+            AddAssert("no ruleset selected", () => selector.SelectedTab == null);
+            AddAssert("all rulesets disabled", () => selector.TabContainer.TabItems.All(t => !t.Enabled.Value));
+        }
+
+        [Test]
+        public void TestNullBeatmapSet()
+        {
+            AddStep("load null beatmapset", () => selector.BeatmapSet = null);
+
+            AddAssert("no ruleset selected", () => selector.SelectedTab == null);
+            AddAssert("all rulesets disabled", () => selector.TabContainer.TabItems.All(t => !t.Enabled.Value));
+        }
+
+        private class TestRulesetSelector : BeatmapRulesetSelector
+        {
+            public new TabItem<RulesetInfo> SelectedTab => base.SelectedTab;
+
+            public new TabFillFlowContainer TabContainer => base.TabContainer;
+        }
+    }
+}

osu.Game.Tests/Visual/Online/TestSceneBeatmapSetOverlay.cs

@@ -40,24 +40,19 @@ namespace osu.Game.Tests.Visual.Online
             typeof(PreviewButton),
             typeof(SuccessRate),
             typeof(BeatmapAvailability),
+            typeof(BeatmapRulesetSelector),
+            typeof(BeatmapRulesetTabItem),
         };
 
         protected override bool UseOnlineAPI => true;
 
-        private RulesetInfo taikoRuleset;
-        private RulesetInfo maniaRuleset;
-
         public TestSceneBeatmapSetOverlay()
         {
             Add(overlay = new TestBeatmapSetOverlay());
         }
 
-        [BackgroundDependencyLoader]
-        private void load(RulesetStore rulesets)
-        {
-            taikoRuleset = rulesets.GetRuleset(1);
-            maniaRuleset = rulesets.GetRuleset(3);
-        }
+        [Resolved]
+        private RulesetStore rulesets { get; set; }
 
         [Test]
         public void TestLoading()
@@ -111,7 +106,7 @@ namespace osu.Game.Tests.Visual.Online
                             StarDifficulty = 9.99,
                             Version = @"TEST",
                             Length = 456000,
-                            Ruleset = maniaRuleset,
+                            Ruleset = rulesets.GetRuleset(3),
                             BaseDifficulty = new BeatmapDifficulty
                             {
                                 CircleSize = 1,
@@ -189,7 +184,7 @@ namespace osu.Game.Tests.Visual.Online
                             StarDifficulty = 5.67,
                             Version = @"ANOTHER TEST",
                             Length = 123000,
-                            Ruleset = taikoRuleset,
+                            Ruleset = rulesets.GetRuleset(1),
                             BaseDifficulty = new BeatmapDifficulty
                             {
                                 CircleSize = 9,
@@ -217,6 +212,54 @@ namespace osu.Game.Tests.Visual.Online
             downloadAssert(false);
         }
 
+        [Test]
+        public void TestMultipleRulesets()
+        {
+            AddStep("show multiple rulesets beatmap", () =>
+            {
+                var beatmaps = new List<BeatmapInfo>();
+
+                foreach (var ruleset in rulesets.AvailableRulesets.Skip(1))
+                {
+                    beatmaps.Add(new BeatmapInfo
+                    {
+                        Version = ruleset.Name,
+                        Ruleset = ruleset,
+                        BaseDifficulty = new BeatmapDifficulty(),
+                        OnlineInfo = new BeatmapOnlineInfo(),
+                        Metrics = new BeatmapMetrics
+                        {
+                            Fails = Enumerable.Range(1, 100).Select(i => i % 12 - 6).ToArray(),
+                            Retries = Enumerable.Range(-2, 100).Select(i => i % 12 - 6).ToArray(),
+                        },
+                    });
+                }
+
+                overlay.ShowBeatmapSet(new BeatmapSetInfo
+                {
+                    Metadata = new BeatmapMetadata
+                    {
+                        Title = @"multiple rulesets beatmap",
+                        Artist = @"none",
+                        Author = new User
+                        {
+                            Username = "BanchoBot",
+                            Id = 3,
+                        }
+                    },
+                    OnlineInfo = new BeatmapSetOnlineInfo
+                    {
+                        Covers = new BeatmapSetOnlineCovers(),
+                    },
+                    Metrics = new BeatmapSetMetrics { Ratings = Enumerable.Range(0, 11).ToArray() },
+                    Beatmaps = beatmaps
+                });
+            });
+
+            AddAssert("shown beatmaps of current ruleset", () => overlay.Header.Picker.Difficulties.All(b => b.Beatmap.Ruleset.Equals(overlay.Header.RulesetSelector.Current.Value)));
+            AddAssert("left-most beatmap selected", () => overlay.Header.Picker.Difficulties.First().State == BeatmapPicker.DifficultySelectorState.Selected);
+        }
+
         [Test]
         public void TestHide()
         {
@@ -281,12 +324,12 @@ namespace osu.Game.Tests.Visual.Online
 
         private void downloadAssert(bool shown)
         {
-            AddAssert($"is download button {(shown ? "shown" : "hidden")}", () => overlay.DownloadButtonsVisible == shown);
+            AddAssert($"is download button {(shown ? "shown" : "hidden")}", () => overlay.Header.DownloadButtonsVisible == shown);
         }
 
         private class TestBeatmapSetOverlay : BeatmapSetOverlay
         {
-            public bool DownloadButtonsVisible => Header.DownloadButtonsVisible;
+            public new Header Header => base.Header;
         }
     }
 }

osu.Game/Beatmaps/BeatmapManager.cs

@@ -392,8 +392,15 @@ namespace osu.Game.Beatmaps
 
                 req.Failure += e => { LogForModel(set, $"Online retrieval failed for {beatmap} ({e.Message})"); };
 
-                // intentionally blocking to limit web request concurrency
-                req.Perform(api);
+                try
+                {
+                    // intentionally blocking to limit web request concurrency
+                    req.Perform(api);
+                }
+                catch (Exception e)
+                {
+                    LogForModel(set, $"Online retrieval failed for {beatmap} ({e.Message})");
+                }
             }
         }
     }

osu.Game/Database/DownloadableArchiveModelManager.cs

@@ -86,16 +86,7 @@ namespace osu.Game.Database
                 }, TaskCreationOptions.LongRunning);
             };
 
-            request.Failure += error =>
-            {
-                DownloadFailed?.Invoke(request);
-
-                if (error is OperationCanceledException) return;
-
-                notification.State = ProgressNotificationState.Cancelled;
-                Logger.Error(error, $"{HumanisedModelName.Titleize()} download failed!");
-                currentDownloads.Remove(request);
-            };
+            request.Failure += triggerFailure;
 
             notification.CancelRequested += () =>
             {
@@ -108,11 +99,31 @@ namespace osu.Game.Database
             currentDownloads.Add(request);
             PostNotification?.Invoke(notification);
 
-            Task.Factory.StartNew(() => request.Perform(api), TaskCreationOptions.LongRunning);
+            Task.Factory.StartNew(() =>
+            {
+                try
+                {
+                    request.Perform(api);
+                }
+                catch (Exception error)
+                {
+                    triggerFailure(error);
+                }
+            }, TaskCreationOptions.LongRunning);
 
             DownloadBegan?.Invoke(request);
-
             return true;
+
+            void triggerFailure(Exception error)
+            {
+                DownloadFailed?.Invoke(request);
+
+                if (error is OperationCanceledException) return;
+
+                notification.State = ProgressNotificationState.Cancelled;
+                Logger.Error(error, $"{HumanisedModelName.Titleize()} download failed!");
+                currentDownloads.Remove(request);
+            }
         }
 
         public bool IsAvailableLocally(TModel model) => CheckLocalAvailability(model, modelStore.ConsumableItems.Where(m => !m.DeletePending));

osu.Game/Graphics/Containers/LinkFlowContainer.cs

@@ -8,9 +8,6 @@ using osu.Framework.Allocation;
 using osu.Framework.Graphics.Sprites;
 using System.Collections.Generic;
 using osu.Framework.Graphics;
-using osu.Framework.Logging;
-using osu.Game.Overlays;
-using osu.Game.Overlays.Notifications;
 using osu.Game.Users;
 
 namespace osu.Game.Graphics.Containers
@@ -23,21 +20,12 @@ namespace osu.Game.Graphics.Containers
         }
 
         private OsuGame game;
-        private ChannelManager channelManager;
-        private Action showNotImplementedError;
 
         [BackgroundDependencyLoader(true)]
-        private void load(OsuGame game, NotificationOverlay notifications, ChannelManager channelManager)
+        private void load(OsuGame game)
         {
             // will be null in tests
             this.game = game;
-            this.channelManager = channelManager;
-
-            showNotImplementedError = () => notifications?.Post(new SimpleNotification
-            {
-                Text = @"This link type is not yet supported!",
-                Icon = FontAwesome.Solid.LifeRing,
-            });
         }
 
         public void AddLinks(string text, List<Link> links)
@@ -56,85 +44,47 @@ namespace osu.Game.Graphics.Containers
             foreach (var link in links)
             {
                 AddText(text.Substring(previousLinkEnd, link.Index - previousLinkEnd));
-                AddLink(text.Substring(link.Index, link.Length), link.Url, link.Action, link.Argument);
+                AddLink(text.Substring(link.Index, link.Length), link.Action, link.Argument ?? link.Url);
                 previousLinkEnd = link.Index + link.Length;
             }
 
             AddText(text.Substring(previousLinkEnd));
         }
 
-        public IEnumerable<Drawable> AddLink(string text, string url, LinkAction linkType = LinkAction.External, string linkArgument = null, string tooltipText = null, Action<SpriteText> creationParameters = null)
-            => createLink(AddText(text, creationParameters), text, url, linkType, linkArgument, tooltipText);
+        public void AddLink(string text, string url, Action<SpriteText> creationParameters = null) =>
+            createLink(AddText(text, creationParameters), new LinkDetails(LinkAction.External, url), url);
 
-        public IEnumerable<Drawable> AddLink(string text, Action action, string tooltipText = null, Action<SpriteText> creationParameters = null)
-            => createLink(AddText(text, creationParameters), text, tooltipText: tooltipText, action: action);
+        public void AddLink(string text, Action action, string tooltipText = null, Action<SpriteText> creationParameters = null)
+            => createLink(AddText(text, creationParameters), new LinkDetails(LinkAction.Custom, null), tooltipText, action);
 
-        public IEnumerable<Drawable> AddLink(IEnumerable<SpriteText> text, string url, LinkAction linkType = LinkAction.External, string linkArgument = null, string tooltipText = null)
+        public void AddLink(string text, LinkAction action, string argument, string tooltipText = null, Action<SpriteText> creationParameters = null)
+            => createLink(AddText(text, creationParameters), new LinkDetails(action, argument), null);
+
+        public void AddLink(IEnumerable<SpriteText> text, LinkAction action = LinkAction.External, string linkArgument = null, string tooltipText = null)
         {
             foreach (var t in text)
                 AddArbitraryDrawable(t);
 
-            return createLink(text, null, url, linkType, linkArgument, tooltipText);
+            createLink(text, new LinkDetails(action, linkArgument), tooltipText);
         }
 
-        public IEnumerable<Drawable> AddUserLink(User user, Action<SpriteText> creationParameters = null)
-            => createLink(AddText(user.Username, creationParameters), user.Username, null, LinkAction.OpenUserProfile, user.Id.ToString(), "View profile");
+        public void AddUserLink(User user, Action<SpriteText> creationParameters = null)
+            => createLink(AddText(user.Username, creationParameters), new LinkDetails(LinkAction.OpenUserProfile, user.Id.ToString()), "View Profile");
 
-        private IEnumerable<Drawable> createLink(IEnumerable<Drawable> drawables, string text, string url = null, LinkAction linkType = LinkAction.External, string linkArgument = null, string tooltipText = null, Action action = null)
+        private void createLink(IEnumerable<Drawable> drawables, LinkDetails link, string tooltipText, Action action = null)
         {
             AddInternal(new DrawableLinkCompiler(drawables.OfType<SpriteText>().ToList())
             {
                 RelativeSizeAxes = Axes.Both,
-                TooltipText = tooltipText ?? (url != text ? url : string.Empty),
-                Action = action ?? (() =>
+                TooltipText = tooltipText,
+                Action = () =>
                 {
-                    switch (linkType)
-                    {
-                        case LinkAction.OpenBeatmap:
-                            // TODO: proper query params handling
-                            if (linkArgument != null && int.TryParse(linkArgument.Contains('?') ? linkArgument.Split('?')[0] : linkArgument, out int beatmapId))
-                                game?.ShowBeatmap(beatmapId);
-                            break;
-
-                        case LinkAction.OpenBeatmapSet:
-                            if (int.TryParse(linkArgument, out int setId))
-                                game?.ShowBeatmapSet(setId);
-                            break;
-
-                        case LinkAction.OpenChannel:
-                            try
-                            {
-                                channelManager?.OpenChannel(linkArgument);
-                            }
-                            catch (ChannelNotFoundException)
-                            {
-                                Logger.Log($"The requested channel \"{linkArgument}\" does not exist");
-                            }
-
-                            break;
-
-                        case LinkAction.OpenEditorTimestamp:
-                        case LinkAction.JoinMultiplayerMatch:
-                        case LinkAction.Spectate:
-                            showNotImplementedError?.Invoke();
-                            break;
-
-                        case LinkAction.External:
-                            game?.OpenUrlExternally(url);
-                            break;
-
-                        case LinkAction.OpenUserProfile:
-                            if (long.TryParse(linkArgument, out long userId))
-                                game?.ShowUser(userId);
-                            break;
-
-                        default:
-                            throw new NotImplementedException($"This {nameof(LinkAction)} ({linkType.ToString()}) is missing an associated action.");
-                    }
-                }),
+                    if (action != null)
+                        action();
+                    else
+                        game.HandleLink(link);
+                },
             });
-
-            return drawables;
         }
 
         // We want the compilers to always be visible no matter where they are, so RelativeSizeAxes is used.

osu.Game/Online/Chat/MessageFormatter.cs

@@ -81,7 +81,7 @@ namespace osu.Game.Online.Chat
                     //since we just changed the line display text, offset any already processed links.
                     result.Links.ForEach(l => l.Index -= l.Index > index ? m.Length - displayText.Length : 0);
 
-                    var details = getLinkDetails(linkText);
+                    var details = GetLinkDetails(linkText);
                     result.Links.Add(new Link(linkText, index, displayText.Length, linkActionOverride ?? details.Action, details.Argument));
 
                     //adjust the offset for processing the current matches group.
@@ -98,7 +98,7 @@ namespace osu.Game.Online.Chat
                 var linkText = m.Groups["link"].Value;
                 var indexLength = linkText.Length;
 
-                var details = getLinkDetails(linkText);
+                var details = GetLinkDetails(linkText);
                 var link = new Link(linkText, index, indexLength, details.Action, details.Argument);
 
                 // sometimes an already-processed formatted link can reduce to a simple URL, too
@@ -109,7 +109,7 @@ namespace osu.Game.Online.Chat
             }
         }
 
-        private static LinkDetails getLinkDetails(string url)
+        public static LinkDetails GetLinkDetails(string url)
         {
             var args = url.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
             args[0] = args[0].TrimEnd(':');
@@ -255,17 +255,17 @@ namespace osu.Game.Online.Chat
                 OriginalText = Text = text;
             }
         }
+    }
 
-        public class LinkDetails
+    public class LinkDetails
+    {
+        public LinkAction Action;
+        public string Argument;
+
+        public LinkDetails(LinkAction action, string argument)
         {
-            public LinkAction Action;
-            public string Argument;
-
-            public LinkDetails(LinkAction action, string argument)
-            {
-                Action = action;
-                Argument = argument;
-            }
+            Action = action;
+            Argument = argument;
         }
     }
 
@@ -279,6 +279,7 @@ namespace osu.Game.Online.Chat
         JoinMultiplayerMatch,
         Spectate,
         OpenUserProfile,
+        Custom
     }
 
     public class Link : IComparable<Link>

osu.Game/Online/Leaderboards/LeaderboardScore.cs

@@ -21,6 +21,7 @@ using osu.Game.Users.Drawables;
 using osuTK;
 using osuTK.Graphics;
 using Humanizer;
+using osu.Game.Online.API;
 
 namespace osu.Game.Online.Leaderboards
 {
@@ -37,6 +38,7 @@ namespace osu.Game.Online.Leaderboards
 
         private readonly ScoreInfo score;
         private readonly int rank;
+        private readonly bool allowHighlight;
 
         private Box background;
         private Container content;
@@ -49,17 +51,18 @@ namespace osu.Game.Online.Leaderboards
 
         private List<ScoreComponentLabel> statisticsLabels;
 
-        public LeaderboardScore(ScoreInfo score, int rank)
+        public LeaderboardScore(ScoreInfo score, int rank, bool allowHighlight = true)
         {
             this.score = score;
             this.rank = rank;
+            this.allowHighlight = allowHighlight;
 
             RelativeSizeAxes = Axes.X;
             Height = HEIGHT;
         }
 
         [BackgroundDependencyLoader]
-        private void load()
+        private void load(IAPIProvider api, OsuColour colour)
         {
             var user = score.User;
 
@@ -100,7 +103,7 @@ namespace osu.Game.Online.Leaderboards
                                 background = new Box
                                 {
                                     RelativeSizeAxes = Axes.Both,
-                                    Colour = Color4.Black,
+                                    Colour = user.Id == api.LocalUser.Value.Id && allowHighlight ? colour.Green : Color4.Black,
                                     Alpha = background_alpha,
                                 },
                             },

osu.Game/OsuGame.cs

@@ -215,31 +215,102 @@ namespace osu.Game
 
         private ExternalLinkOpener externalLinkOpener;
 
-        public void OpenUrlExternally(string url)
+        /// <summary>
+        /// Handle an arbitrary URL. Displays via in-game overlays where possible.
+        /// This can be called from a non-thread-safe non-game-loaded state.
+        /// </summary>
+        /// <param name="url">The URL to load.</param>
+        public void HandleLink(string url) => HandleLink(MessageFormatter.GetLinkDetails(url));
+
+        /// <summary>
+        /// Handle a specific <see cref="LinkDetails"/>.
+        /// This can be called from a non-thread-safe non-game-loaded state.
+        /// </summary>
+        /// <param name="link">The link to load.</param>
+        public void HandleLink(LinkDetails link) => Schedule(() =>
+        {
+            switch (link.Action)
+            {
+                case LinkAction.OpenBeatmap:
+                    // TODO: proper query params handling
+                    if (link.Argument != null && int.TryParse(link.Argument.Contains('?') ? link.Argument.Split('?')[0] : link.Argument, out int beatmapId))
+                        ShowBeatmap(beatmapId);
+                    break;
+
+                case LinkAction.OpenBeatmapSet:
+                    if (int.TryParse(link.Argument, out int setId))
+                        ShowBeatmapSet(setId);
+                    break;
+
+                case LinkAction.OpenChannel:
+                    ShowChannel(link.Argument);
+                    break;
+
+                case LinkAction.OpenEditorTimestamp:
+                case LinkAction.JoinMultiplayerMatch:
+                case LinkAction.Spectate:
+                    waitForReady(() => notifications, _ => notifications?.Post(new SimpleNotification
+                    {
+                        Text = @"This link type is not yet supported!",
+                        Icon = FontAwesome.Solid.LifeRing,
+                    }));
+                    break;
+
+                case LinkAction.External:
+                    OpenUrlExternally(link.Argument);
+                    break;
+
+                case LinkAction.OpenUserProfile:
+                    if (long.TryParse(link.Argument, out long userId))
+                        ShowUser(userId);
+                    break;
+
+                default:
+                    throw new NotImplementedException($"This {nameof(LinkAction)} ({link.Action.ToString()}) is missing an associated action.");
+            }
+        });
+
+        public void OpenUrlExternally(string url) => waitForReady(() => externalLinkOpener, _ =>
         {
             if (url.StartsWith("/"))
                 url = $"{API.Endpoint}{url}";
 
             externalLinkOpener.OpenUrlExternally(url);
-        }
+        });
+
+        /// <summary>
+        /// Open a specific channel in chat.
+        /// </summary>
+        /// <param name="channel">The channel to display.</param>
+        public void ShowChannel(string channel) => waitForReady(() => channelManager, _ =>
+        {
+            try
+            {
+                channelManager.OpenChannel(channel);
+            }
+            catch (ChannelNotFoundException)
+            {
+                Logger.Log($"The requested channel \"{channel}\" does not exist");
+            }
+        });
 
         /// <summary>
         /// Show a beatmap set as an overlay.
         /// </summary>
         /// <param name="setId">The set to display.</param>
-        public void ShowBeatmapSet(int setId) => beatmapSetOverlay.FetchAndShowBeatmapSet(setId);
+        public void ShowBeatmapSet(int setId) => waitForReady(() => beatmapSetOverlay, _ => beatmapSetOverlay.FetchAndShowBeatmapSet(setId));
 
         /// <summary>
         /// Show a user's profile as an overlay.
         /// </summary>
         /// <param name="userId">The user to display.</param>
-        public void ShowUser(long userId) => userProfile.ShowUser(userId);
+        public void ShowUser(long userId) => waitForReady(() => userProfile, _ => userProfile.ShowUser(userId));
 
         /// <summary>
         /// Show a beatmap's set as an overlay, displaying the given beatmap.
         /// </summary>
         /// <param name="beatmapId">The beatmap to show.</param>
-        public void ShowBeatmap(int beatmapId) => beatmapSetOverlay.FetchAndShowBeatmap(beatmapId);
+        public void ShowBeatmap(int beatmapId) => waitForReady(() => beatmapSetOverlay, _ => beatmapSetOverlay.FetchAndShowBeatmap(beatmapId));
 
         /// <summary>
         /// Present a beatmap at song select immediately.
@@ -397,6 +468,23 @@ namespace osu.Game
             performFromMainMenuTask = Schedule(() => performFromMainMenu(action, taskName));
         }
 
+        /// <summary>
+        /// Wait for the game (and target component) to become loaded and then run an action.
+        /// </summary>
+        /// <param name="retrieveInstance">A function to retrieve a (potentially not-yet-constructed) target instance.</param>
+        /// <param name="action">The action to perform on the instance when load is confirmed.</param>
+        /// <typeparam name="T">The type of the target instance.</typeparam>
+        private void waitForReady<T>(Func<T> retrieveInstance, Action<T> action)
+            where T : Drawable
+        {
+            var instance = retrieveInstance();
+
+            if (ScreenStack == null || ScreenStack.CurrentScreen is StartupScreen || instance?.IsLoaded != true)
+                Schedule(() => waitForReady(retrieveInstance, action));
+            else
+                action(instance);
+        }
+
         protected override void Dispose(bool isDisposing)
         {
             base.Dispose(isDisposing);

osu.Game/Overlays/BeatmapSet/BeatmapPicker.cs

@@ -17,6 +17,7 @@ using osu.Game.Beatmaps.Drawables;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.Sprites;
+using osu.Game.Rulesets;
 using osuTK;
 using osuTK.Graphics;
 
@@ -27,10 +28,11 @@ namespace osu.Game.Overlays.BeatmapSet
         private const float tile_icon_padding = 7;
         private const float tile_spacing = 2;
 
-        private readonly DifficultiesContainer difficulties;
         private readonly OsuSpriteText version, starRating;
         private readonly Statistic plays, favourites;
 
+        public readonly DifficultiesContainer Difficulties;
+
         public readonly Bindable<BeatmapInfo> Beatmap = new Bindable<BeatmapInfo>();
 
         private BeatmapSetInfo beatmapSet;
@@ -43,38 +45,10 @@ namespace osu.Game.Overlays.BeatmapSet
                 if (value == beatmapSet) return;
 
                 beatmapSet = value;
-
                 updateDisplay();
             }
         }
 
-        private void updateDisplay()
-        {
-            difficulties.Clear();
-
-            if (BeatmapSet != null)
-            {
-                difficulties.ChildrenEnumerable = BeatmapSet.Beatmaps.OrderBy(beatmap => beatmap.StarDifficulty).Select(b => new DifficultySelectorButton(b)
-                {
-                    State = DifficultySelectorState.NotSelected,
-                    OnHovered = beatmap =>
-                    {
-                        showBeatmap(beatmap);
-                        starRating.Text = beatmap.StarDifficulty.ToString("Star Difficulty 0.##");
-                        starRating.FadeIn(100);
-                    },
-                    OnClicked = beatmap => { Beatmap.Value = beatmap; },
-                });
-            }
-
-            starRating.FadeOut(100);
-            Beatmap.Value = BeatmapSet?.Beatmaps.FirstOrDefault();
-            plays.Value = BeatmapSet?.OnlineInfo.PlayCount ?? 0;
-            favourites.Value = BeatmapSet?.OnlineInfo.FavouriteCount ?? 0;
-
-            updateDifficultyButtons();
-        }
-
         public BeatmapPicker()
         {
             RelativeSizeAxes = Axes.X;
@@ -89,7 +63,7 @@ namespace osu.Game.Overlays.BeatmapSet
                     Direction = FillDirection.Vertical,
                     Children = new Drawable[]
                     {
-                        difficulties = new DifficultiesContainer
+                        Difficulties = new DifficultiesContainer
                         {
                             RelativeSizeAxes = Axes.X,
                             AutoSizeAxes = Axes.Y,
@@ -147,6 +121,9 @@ namespace osu.Game.Overlays.BeatmapSet
             };
         }
 
+        [Resolved]
+        private IBindable<RulesetInfo> ruleset { get; set; }
+
         [BackgroundDependencyLoader]
         private void load(OsuColour colours)
         {
@@ -158,10 +135,39 @@ namespace osu.Game.Overlays.BeatmapSet
         {
             base.LoadComplete();
 
+            ruleset.ValueChanged += r => updateDisplay();
+
             // done here so everything can bind in intialization and get the first trigger
             Beatmap.TriggerChange();
         }
 
+        private void updateDisplay()
+        {
+            Difficulties.Clear();
+
+            if (BeatmapSet != null)
+            {
+                Difficulties.ChildrenEnumerable = BeatmapSet.Beatmaps.Where(b => b.Ruleset.Equals(ruleset.Value)).OrderBy(b => b.StarDifficulty).Select(b => new DifficultySelectorButton(b)
+                {
+                    State = DifficultySelectorState.NotSelected,
+                    OnHovered = beatmap =>
+                    {
+                        showBeatmap(beatmap);
+                        starRating.Text = beatmap.StarDifficulty.ToString("Star Difficulty 0.##");
+                        starRating.FadeIn(100);
+                    },
+                    OnClicked = beatmap => { Beatmap.Value = beatmap; },
+                });
+            }
+
+            starRating.FadeOut(100);
+            Beatmap.Value = Difficulties.FirstOrDefault()?.Beatmap;
+            plays.Value = BeatmapSet?.OnlineInfo.PlayCount ?? 0;
+            favourites.Value = BeatmapSet?.OnlineInfo.FavouriteCount ?? 0;
+
+            updateDifficultyButtons();
+        }
+
         private void showBeatmap(BeatmapInfo beatmap)
         {
             version.Text = beatmap?.Version;
@@ -169,10 +175,10 @@ namespace osu.Game.Overlays.BeatmapSet
 
         private void updateDifficultyButtons()
         {
-            difficulties.Children.ToList().ForEach(diff => diff.State = diff.Beatmap == Beatmap.Value ? DifficultySelectorState.Selected : DifficultySelectorState.NotSelected);
+            Difficulties.Children.ToList().ForEach(diff => diff.State = diff.Beatmap == Beatmap.Value ? DifficultySelectorState.Selected : DifficultySelectorState.NotSelected);
         }
 
-        private class DifficultiesContainer : FillFlowContainer<DifficultySelectorButton>
+        public class DifficultiesContainer : FillFlowContainer<DifficultySelectorButton>
         {
             public Action OnLostHover;
 
@@ -183,7 +189,7 @@ namespace osu.Game.Overlays.BeatmapSet
             }
         }
 
-        private class DifficultySelectorButton : OsuClickableContainer, IStateful<DifficultySelectorState>
+        public class DifficultySelectorButton : OsuClickableContainer, IStateful<DifficultySelectorState>
         {
             private const float transition_duration = 100;
             private const float size = 52;
@@ -320,7 +326,7 @@ namespace osu.Game.Overlays.BeatmapSet
             }
         }
 
-        private enum DifficultySelectorState
+        public enum DifficultySelectorState
         {
             Selected,
             NotSelected,

osu.Game/Overlays/BeatmapSet/BeatmapRulesetSelector.cs

@@ -0,0 +1,48 @@
+// 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.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.UserInterface;
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets;
+using osuTK;
+using System.Linq;
+
+namespace osu.Game.Overlays.BeatmapSet
+{
+    public class BeatmapRulesetSelector : RulesetSelector
+    {
+        private readonly Bindable<BeatmapSetInfo> beatmapSet = new Bindable<BeatmapSetInfo>();
+
+        public BeatmapSetInfo BeatmapSet
+        {
+            get => beatmapSet.Value;
+            set
+            {
+                // propagate value to tab items first to enable only available rulesets.
+                beatmapSet.Value = value;
+
+                SelectTab(TabContainer.TabItems.FirstOrDefault(t => t.Enabled.Value));
+            }
+        }
+
+        public BeatmapRulesetSelector()
+        {
+            AutoSizeAxes = Axes.Both;
+        }
+
+        protected override TabItem<RulesetInfo> CreateTabItem(RulesetInfo value) => new BeatmapRulesetTabItem(value)
+        {
+            BeatmapSet = { BindTarget = beatmapSet }
+        };
+
+        protected override TabFillFlowContainer CreateTabFlow() => new TabFillFlowContainer
+        {
+            AutoSizeAxes = Axes.Both,
+            Direction = FillDirection.Horizontal,
+            Spacing = new Vector2(10, 0),
+        };
+    }
+}

osu.Game/Overlays/BeatmapSet/BeatmapRulesetTabItem.cs

@@ -0,0 +1,145 @@
+// 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.Bindables;
+using osu.Framework.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.Graphics.UserInterface;
+using osu.Framework.Input.Events;
+using osu.Game.Beatmaps;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Sprites;
+using osu.Game.Graphics.UserInterface;
+using osu.Game.Rulesets;
+using osuTK;
+using osuTK.Graphics;
+using System.Linq;
+
+namespace osu.Game.Overlays.BeatmapSet
+{
+    public class BeatmapRulesetTabItem : TabItem<RulesetInfo>
+    {
+        private readonly OsuSpriteText name, count;
+        private readonly Box bar;
+
+        public readonly Bindable<BeatmapSetInfo> BeatmapSet = new Bindable<BeatmapSetInfo>();
+
+        public override bool PropagatePositionalInputSubTree => Enabled.Value && !Active.Value && base.PropagatePositionalInputSubTree;
+
+        public BeatmapRulesetTabItem(RulesetInfo value)
+            : base(value)
+        {
+            AutoSizeAxes = Axes.Both;
+
+            FillFlowContainer nameContainer;
+
+            Children = new Drawable[]
+            {
+                nameContainer = new FillFlowContainer
+                {
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre,
+                    AutoSizeAxes = Axes.Both,
+                    Direction = FillDirection.Horizontal,
+                    Margin = new MarginPadding { Bottom = 7.5f },
+                    Spacing = new Vector2(2.5f),
+                    Children = new Drawable[]
+                    {
+                        name = new OsuSpriteText
+                        {
+                            Anchor = Anchor.Centre,
+                            Origin = Anchor.Centre,
+                            Text = value.Name,
+                            Font = OsuFont.Default.With(size: 18),
+                        },
+                        new Container
+                        {
+                            Anchor = Anchor.Centre,
+                            Origin = Anchor.Centre,
+                            AutoSizeAxes = Axes.Both,
+                            Masking = true,
+                            CornerRadius = 4f,
+                            Children = new Drawable[]
+                            {
+                                new Box
+                                {
+                                    RelativeSizeAxes = Axes.Both,
+                                    Colour = Color4.Black.Opacity(0.5f),
+                                },
+                                count = new OsuSpriteText
+                                {
+                                    Alpha = 0,
+                                    Anchor = Anchor.Centre,
+                                    Origin = Anchor.Centre,
+                                    Margin = new MarginPadding { Horizontal = 5f },
+                                    Font = OsuFont.Default.With(weight: FontWeight.SemiBold),
+                                }
+                            }
+                        }
+                    }
+                },
+                bar = new Box
+                {
+                    Anchor = Anchor.BottomCentre,
+                    Origin = Anchor.BottomCentre,
+                    RelativeSizeAxes = Axes.X,
+                },
+                new HoverClickSounds(),
+            };
+
+            BeatmapSet.BindValueChanged(setInfo =>
+            {
+                var beatmapsCount = setInfo.NewValue?.Beatmaps.Count(b => b.Ruleset.Equals(Value)) ?? 0;
+
+                count.Text = beatmapsCount.ToString();
+                count.Alpha = beatmapsCount > 0 ? 1f : 0f;
+
+                Enabled.Value = beatmapsCount > 0;
+            }, true);
+
+            Enabled.BindValueChanged(v => nameContainer.Alpha = v.NewValue ? 1f : 0.5f, true);
+        }
+
+        [Resolved]
+        private OsuColour colour { get; set; }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            count.Colour = colour.Gray9;
+            bar.Colour = colour.Blue;
+
+            updateState();
+        }
+
+        private void updateState()
+        {
+            var isHoveredOrActive = IsHovered || Active.Value;
+
+            bar.ResizeHeightTo(isHoveredOrActive ? 4 : 0, 200, Easing.OutQuint);
+
+            name.Colour = isHoveredOrActive ? colour.GrayE : colour.GrayC;
+            name.Font = name.Font.With(weight: Active.Value ? FontWeight.Bold : FontWeight.Regular);
+        }
+
+        #region Hovering and activation logic
+
+        protected override void OnActivated() => updateState();
+
+        protected override void OnDeactivated() => updateState();
+
+        protected override bool OnHover(HoverEvent e)
+        {
+            updateState();
+            return false;
+        }
+
+        protected override void OnHoverLost(HoverLostEvent e) => updateState();
+
+        #endregion
+    }
+}

osu.Game/Overlays/BeatmapSet/Header.cs

@@ -3,6 +3,7 @@
 
 using System.Linq;
 using osu.Framework.Allocation;
+using osu.Framework.Bindables;
 using osu.Framework.Extensions.Color4Extensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Colour;
@@ -16,6 +17,7 @@ using osu.Game.Graphics.UserInterface;
 using osu.Game.Online;
 using osu.Game.Overlays.BeatmapSet.Buttons;
 using osu.Game.Overlays.Direct;
+using osu.Game.Rulesets;
 using osuTK;
 using osuTK.Graphics;
 
@@ -39,6 +41,7 @@ namespace osu.Game.Overlays.BeatmapSet
 
         public bool DownloadButtonsVisible => downloadButtonsContainer.Any();
 
+        public readonly BeatmapRulesetSelector RulesetSelector;
         public readonly BeatmapPicker Picker;
 
         private readonly FavouriteButton favouriteButton;
@@ -47,6 +50,9 @@ namespace osu.Game.Overlays.BeatmapSet
 
         private readonly LoadingAnimation loading;
 
+        [Cached(typeof(IBindable<RulesetInfo>))]
+        private readonly Bindable<RulesetInfo> ruleset = new Bindable<RulesetInfo>();
+
         public Header()
         {
             ExternalLinkButton externalLink;
@@ -69,12 +75,18 @@ namespace osu.Game.Overlays.BeatmapSet
                 {
                     RelativeSizeAxes = Axes.X,
                     Height = tabs_height,
-                    Children = new[]
+                    Children = new Drawable[]
                     {
                         tabsBg = new Box
                         {
                             RelativeSizeAxes = Axes.Both,
                         },
+                        RulesetSelector = new BeatmapRulesetSelector
+                        {
+                            Current = ruleset,
+                            Anchor = Anchor.BottomCentre,
+                            Origin = Anchor.BottomCentre,
+                        }
                     },
                 },
                 new Container
@@ -223,7 +235,7 @@ namespace osu.Game.Overlays.BeatmapSet
 
             BeatmapSet.BindValueChanged(setInfo =>
             {
-                Picker.BeatmapSet = author.BeatmapSet = beatmapAvailability.BeatmapSet = Details.BeatmapSet = setInfo.NewValue;
+                Picker.BeatmapSet = RulesetSelector.BeatmapSet = author.BeatmapSet = beatmapAvailability.BeatmapSet = Details.BeatmapSet = setInfo.NewValue;
                 cover.BeatmapSet = setInfo.NewValue;
 
                 if (setInfo.NewValue == null)

osu.Game/Overlays/Changelog/ChangelogBuild.cs

@@ -110,7 +110,7 @@ namespace osu.Game.Overlays.Changelog
                             t.Font = fontLarge;
                             t.Colour = entryColour;
                         });
-                        title.AddLink($"{entry.Repository.Replace("ppy/", "")}#{entry.GithubPullRequestId}", entry.GithubUrl, Online.Chat.LinkAction.External,
+                        title.AddLink($"{entry.Repository.Replace("ppy/", "")}#{entry.GithubPullRequestId}", entry.GithubUrl,
                             creationParameters: t =>
                             {
                                 t.Font = fontLarge;
@@ -140,7 +140,7 @@ namespace osu.Game.Overlays.Changelog
                             t.Colour = entryColour;
                         });
                     else if (entry.GithubUser.GithubUrl != null)
-                        title.AddLink(entry.GithubUser.DisplayName, entry.GithubUser.GithubUrl, Online.Chat.LinkAction.External, null, null, t =>
+                        title.AddLink(entry.GithubUser.DisplayName, entry.GithubUser.GithubUrl, t =>
                         {
                             t.Font = fontMedium;
                             t.Colour = entryColour;

osu.Game/Overlays/Changelog/ChangelogSingleBuild.cs

@@ -44,7 +44,17 @@ namespace osu.Game.Overlays.Changelog
             req.Failure += _ => complete = true;
 
             // This is done on a separate thread to support cancellation below
-            Task.Run(() => req.Perform(api));
+            Task.Run(() =>
+            {
+                try
+                {
+                    req.Perform(api);
+                }
+                catch
+                {
+                    complete = true;
+                }
+            });
 
             while (!complete)
             {

osu.Game/Overlays/ChangelogOverlay.cs

@@ -170,6 +170,7 @@ namespace osu.Game.Overlays
                 var tcs = new TaskCompletionSource<bool>();
 
                 var req = new GetChangelogRequest();
+
                 req.Success += res => Schedule(() =>
                 {
                     // remap streams to builds to ensure model equality
@@ -183,8 +184,22 @@ namespace osu.Game.Overlays
 
                     tcs.SetResult(true);
                 });
-                req.Failure += _ => initialFetchTask = null;
-                req.Perform(API);
+
+                req.Failure += _ =>
+                {
+                    initialFetchTask = null;
+                    tcs.SetResult(false);
+                };
+
+                try
+                {
+                    req.Perform(API);
+                }
+                catch
+                {
+                    initialFetchTask = null;
+                    tcs.SetResult(false);
+                }
 
                 await tcs.Task;
             });

osu.Game/Rulesets/Edit/HitObjectComposer.cs

@@ -148,7 +148,7 @@ namespace osu.Game.Rulesets.Edit
             EditorBeatmap = new EditorBeatmap<TObject>(playableBeatmap);
             EditorBeatmap.HitObjectAdded += addHitObject;
             EditorBeatmap.HitObjectRemoved += removeHitObject;
-            EditorBeatmap.StartTimeChanged += updateHitObject;
+            EditorBeatmap.StartTimeChanged += UpdateHitObject;
 
             var dependencies = new DependencyContainer(parent);
             dependencies.CacheAs<IEditorBeatmap>(EditorBeatmap);
@@ -225,11 +225,7 @@ namespace osu.Game.Rulesets.Edit
 
         private ScheduledDelegate scheduledUpdate;
 
-        private void addHitObject(HitObject hitObject) => updateHitObject(hitObject);
-
-        private void removeHitObject(HitObject hitObject) => updateHitObject(null);
-
-        private void updateHitObject([CanBeNull] HitObject hitObject)
+        public override void UpdateHitObject(HitObject hitObject)
         {
             scheduledUpdate?.Cancel();
             scheduledUpdate = Schedule(() =>
@@ -240,6 +236,10 @@ namespace osu.Game.Rulesets.Edit
             });
         }
 
+        private void addHitObject(HitObject hitObject) => UpdateHitObject(hitObject);
+
+        private void removeHitObject(HitObject hitObject) => UpdateHitObject(null);
+
         public override IEnumerable<DrawableHitObject> HitObjects => drawableRulesetWrapper.Playfield.AllHitObjects;
         public override bool CursorInPlacementArea => drawableRulesetWrapper.Playfield.ReceivePositionalInputAt(inputManager.CurrentState.Mouse.Position);
 
@@ -351,11 +351,22 @@ namespace osu.Game.Rulesets.Edit
         [CanBeNull]
         protected virtual DistanceSnapGrid CreateDistanceSnapGrid([NotNull] IEnumerable<HitObject> selectedHitObjects) => null;
 
+        /// <summary>
+        /// Updates a <see cref="HitObject"/>, invoking <see cref="HitObject.ApplyDefaults"/> and re-processing the beatmap.
+        /// </summary>
+        /// <param name="hitObject">The <see cref="HitObject"/> to update.</param>
+        public abstract void UpdateHitObject([CanBeNull] HitObject hitObject);
+
         public abstract (Vector2 position, double time) GetSnappedPosition(Vector2 position, double time);
+
         public abstract float GetBeatSnapDistanceAt(double referenceTime);
+
         public abstract float DurationToDistance(double referenceTime, double duration);
+
         public abstract double DistanceToDuration(double referenceTime, float distance);
+
         public abstract double GetSnappedDurationFromDistance(double referenceTime, float distance);
+
         public abstract float GetSnappedDistanceFromDistance(double referenceTime, float distance);
     }
 }

osu.Game/Rulesets/Edit/SelectionBlueprint.cs

@@ -3,10 +3,12 @@
 
 using System;
 using osu.Framework;
+using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Primitives;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Objects.Drawables;
 using osuTK;
 
@@ -36,6 +38,9 @@ namespace osu.Game.Rulesets.Edit
         public override bool HandlePositionalInput => ShouldBeAlive;
         public override bool RemoveWhenNotAlive => false;
 
+        [Resolved(CanBeNull = true)]
+        private HitObjectComposer composer { get; set; }
+
         protected SelectionBlueprint(DrawableHitObject drawableObject)
         {
             DrawableObject = drawableObject;
@@ -89,6 +94,11 @@ namespace osu.Game.Rulesets.Edit
 
         public bool IsSelected => State == SelectionState.Selected;
 
+        /// <summary>
+        /// Updates the <see cref="HitObject"/>, invoking <see cref="HitObject.ApplyDefaults"/> and re-processing the beatmap.
+        /// </summary>
+        protected void UpdateHitObject() => composer?.UpdateHitObject(DrawableObject.HitObject);
+
         public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => DrawableObject.ReceivePositionalInputAt(screenSpacePos);
 
         /// <summary>

osu.Game/Rulesets/UI/DrawableRuleset.cs

@@ -239,6 +239,12 @@ namespace osu.Game.Rulesets.UI
                 continueResume();
         }
 
+        public override void CancelResume()
+        {
+            // called if the user pauses while the resume overlay is open
+            ResumeOverlay?.Hide();
+        }
+
         /// <summary>
         /// Creates and adds the visual representation of a <see cref="TObject"/> to this <see cref="DrawableRuleset{TObject}"/>.
         /// </summary>
@@ -453,6 +459,11 @@ namespace osu.Game.Rulesets.UI
         /// <param name="continueResume">The action to run when resuming is to be completed.</param>
         public abstract void RequestResume(Action continueResume);
 
+        /// <summary>
+        /// Invoked when the user requests to pause while the resume overlay is active.
+        /// </summary>
+        public abstract void CancelResume();
+
         /// <summary>
         /// Create a <see cref="ScoreProcessor"/> for the associated ruleset  and link with this
         /// <see cref="DrawableRuleset"/>.

osu.Game/Rulesets/UI/Scrolling/ScrollingHitObjectContainer.cs

@@ -13,12 +13,6 @@ namespace osu.Game.Rulesets.UI.Scrolling
 {
     public class ScrollingHitObjectContainer : HitObjectContainer
     {
-        /// <summary>
-        /// A multiplier applied to the length of the scrolling area to determine a safe default lifetime end for hitobjects.
-        /// This is only used to limit the lifetime end within reason, as proper lifetime management should be implemented on hitobjects themselves.
-        /// </summary>
-        private const float safe_lifetime_end_multiplier = 2;
-
         private readonly IBindable<double> timeRange = new BindableDouble();
         private readonly IBindable<ScrollingDirection> direction = new Bindable<ScrollingDirection>();
 
@@ -123,28 +117,22 @@ namespace osu.Game.Rulesets.UI.Scrolling
             if (cached.IsValid)
                 return;
 
-            double endTime = hitObject.HitObject.StartTime;
-
             if (hitObject.HitObject is IHasEndTime e)
             {
-                endTime = e.EndTime;
-
                 switch (direction.Value)
                 {
                     case ScrollingDirection.Up:
                     case ScrollingDirection.Down:
-                        hitObject.Height = scrollingInfo.Algorithm.GetLength(hitObject.HitObject.StartTime, endTime, timeRange.Value, scrollLength);
+                        hitObject.Height = scrollingInfo.Algorithm.GetLength(hitObject.HitObject.StartTime, e.EndTime, timeRange.Value, scrollLength);
                         break;
 
                     case ScrollingDirection.Left:
                     case ScrollingDirection.Right:
-                        hitObject.Width = scrollingInfo.Algorithm.GetLength(hitObject.HitObject.StartTime, endTime, timeRange.Value, scrollLength);
+                        hitObject.Width = scrollingInfo.Algorithm.GetLength(hitObject.HitObject.StartTime, e.EndTime, timeRange.Value, scrollLength);
                         break;
                 }
             }
 
-            hitObject.LifetimeEnd = scrollingInfo.Algorithm.TimeAt(scrollLength * safe_lifetime_end_multiplier, endTime, timeRange.Value, scrollLength);
-
             foreach (var obj in hitObject.NestedHitObjects)
             {
                 computeInitialStateRecursive(obj);

osu.Game/Screens/Multi/Components/BeatmapTitle.cs

@@ -81,7 +81,7 @@ namespace osu.Game.Screens.Multi.Components
                         Text = new LocalisedString((beatmap.Metadata.TitleUnicode, beatmap.Metadata.Title)),
                         Font = OsuFont.GetFont(size: TextSize),
                     }
-                }, null, LinkAction.OpenBeatmap, beatmap.OnlineBeatmapID.ToString(), "Open beatmap");
+                }, LinkAction.OpenBeatmap, beatmap.OnlineBeatmapID.ToString(), "Open beatmap");
             }
         }
     }

osu.Game/Screens/Multi/Multiplayer.cs

@@ -167,14 +167,17 @@ namespace osu.Game.Screens.Multi
         public void APIStateChanged(IAPIProvider api, APIState state)
         {
             if (state != APIState.Online)
-                forcefullyExit();
+                Schedule(forcefullyExit);
         }
 
         private void forcefullyExit()
         {
             // This is temporary since we don't currently have a way to force screens to be exited
             if (this.IsCurrentScreen())
-                this.Exit();
+            {
+                while (this.IsCurrentScreen())
+                    this.Exit();
+            }
             else
             {
                 this.MakeCurrent();
@@ -212,6 +215,8 @@ namespace osu.Game.Screens.Multi
 
         public override bool OnExiting(IScreen next)
         {
+            roomManager.PartRoom();
+
             if (screenStack.CurrentScreen != null && !(screenStack.CurrentScreen is LoungeSubScreen))
             {
                 screenStack.Exit();

osu.Game/Screens/Multi/RoomManager.cs

@@ -87,9 +87,8 @@ namespace osu.Game.Screens.Multi
         public void JoinRoom(Room room, Action<Room> onSuccess = null, Action<string> onError = null)
         {
             currentJoinRoomRequest?.Cancel();
-            currentJoinRoomRequest = null;
-
             currentJoinRoomRequest = new JoinRoomRequest(room, api.LocalUser.Value);
+
             currentJoinRoomRequest.Success += () =>
             {
                 joinedRoom = room;
@@ -98,7 +97,8 @@ namespace osu.Game.Screens.Multi
 
             currentJoinRoomRequest.Failure += exception =>
             {
-                Logger.Log($"Failed to join room: {exception}", level: LogLevel.Important);
+                if (!(exception is OperationCanceledException))
+                    Logger.Log($"Failed to join room: {exception}", level: LogLevel.Important);
                 onError?.Invoke(exception.ToString());
             };
 
@@ -107,6 +107,8 @@ namespace osu.Game.Screens.Multi
 
         public void PartRoom()
         {
+            currentJoinRoomRequest?.Cancel();
+
             if (joinedRoom == null)
                 return;
 

osu.Game/Screens/Play/GameplayClockContainer.cs

@@ -8,6 +8,7 @@ using System.Threading.Tasks;
 using osu.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Audio;
+using osu.Framework.Audio.Track;
 using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
@@ -29,7 +30,7 @@ namespace osu.Game.Screens.Play
         /// <summary>
         /// The original source (usually a <see cref="WorkingBeatmap"/>'s track).
         /// </summary>
-        private readonly IAdjustableClock sourceClock;
+        private IAdjustableClock sourceClock;
 
         public readonly BindableBool IsPaused = new BindableBool();
 
@@ -153,6 +154,18 @@ namespace osu.Game.Screens.Play
             IsPaused.Value = true;
         }
 
+        /// <summary>
+        /// Changes the backing clock to avoid using the originally provided beatmap's track.
+        /// </summary>
+        public void StopUsingBeatmapClock()
+        {
+            if (sourceClock != beatmap.Track)
+                return;
+
+            sourceClock = new TrackVirtual(beatmap.Track.Length);
+            adjustableClock.ChangeSource(sourceClock);
+        }
+
         public void ResetLocalAdjustments()
         {
             // In the case of replays, we may have changed the playback rate.

osu.Game/Screens/Play/Player.cs

@@ -30,6 +30,7 @@ using osu.Game.Users;
 
 namespace osu.Game.Screens.Play
 {
+    [Cached]
     public class Player : ScreenWithBeatmapBackground
     {
         public override bool AllowBackButton => false; // handled by HoldForMenuButton
@@ -311,14 +312,19 @@ namespace osu.Game.Screens.Play
                 this.Exit();
         }
 
+        /// <summary>
+        /// Restart gameplay via a parent <see cref="PlayerLoader"/>.
+        /// <remarks>This can be called from a child screen in order to trigger the restart process.</remarks>
+        /// </summary>
         public void Restart()
         {
-            if (!this.IsCurrentScreen()) return;
-
             sampleRestart?.Play();
-
             RestartRequested?.Invoke();
-            performImmediateExit();
+
+            if (this.IsCurrentScreen())
+                performImmediateExit();
+            else
+                this.MakeCurrent();
         }
 
         private ScheduledDelegate completionProgressDelegate;
@@ -443,7 +449,12 @@ namespace osu.Game.Screens.Play
         {
             if (!canPause) return;
 
-            IsResuming = false;
+            if (IsResuming)
+            {
+                DrawableRuleset.CancelResume();
+                IsResuming = false;
+            }
+
             GameplayClockContainer.Stop();
             PauseOverlay.Show();
             lastPauseActionTime = GameplayClockContainer.GameplayClock.CurrentTime;
@@ -527,6 +538,10 @@ namespace osu.Game.Screens.Play
 
             GameplayClockContainer.ResetLocalAdjustments();
 
+            // GameplayClockContainer performs seeks / start / stop operations on the beatmap's track.
+            // as we are no longer the current screen, we cannot guarantee the track is still usable.
+            GameplayClockContainer.StopUsingBeatmapClock();
+
             fadeOut();
             return base.OnExiting(next);
         }

osu.Game/Screens/Ranking/Pages/ReplayDownloadButton.cs

@@ -4,12 +4,13 @@
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Game.Graphics.Containers;
-using osu.Game.Online;
-using osu.Game.Scoring;
-using osu.Game.Online.API.Requests.Responses;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Online;
+using osu.Game.Online.API.Requests.Responses;
+using osu.Game.Scoring;
+using osuTK;
 
-namespace osu.Game.Screens.Play
+namespace osu.Game.Screens.Ranking.Pages
 {
     public class ReplayDownloadButton : DownloadTrackingComposite<ScoreInfo, ScoreManager>
     {
@@ -33,6 +34,7 @@ namespace osu.Game.Screens.Play
         public ReplayDownloadButton(ScoreInfo score)
             : base(score)
         {
+            Size = new Vector2(50, 30);
         }
 
         [BackgroundDependencyLoader(true)]

osu.Game/Screens/Ranking/Pages/RetryButton.cs

@@ -0,0 +1,54 @@
+// 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.Framework.Graphics.Shapes;
+using osu.Framework.Graphics.Sprites;
+using osu.Game.Graphics;
+using osu.Game.Graphics.UserInterface;
+using osu.Game.Screens.Play;
+using osuTK;
+
+namespace osu.Game.Screens.Ranking.Pages
+{
+    public class RetryButton : OsuAnimatedButton
+    {
+        private readonly Box background;
+
+        [Resolved(canBeNull: true)]
+        private Player player { get; set; }
+
+        public RetryButton()
+        {
+            Size = new Vector2(50, 30);
+
+            Children = new Drawable[]
+            {
+                background = new Box
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Depth = float.MaxValue
+                },
+                new SpriteIcon
+                {
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre,
+                    Size = new Vector2(13),
+                    Icon = FontAwesome.Solid.ArrowCircleLeft,
+                },
+            };
+
+            TooltipText = "Retry";
+        }
+
+        [BackgroundDependencyLoader]
+        private void load(OsuColour colours)
+        {
+            background.Colour = colours.Green;
+
+            if (player != null)
+                Action = () => player.Restart();
+        }
+    }
+}

osu.Game/Screens/Ranking/Pages/ScoreResultsPage.cs

@@ -169,12 +169,19 @@ namespace osu.Game.Screens.Ranking.Pages
                         },
                     },
                 },
-                new ReplayDownloadButton(score)
+                new FillFlowContainer
                 {
                     Anchor = Anchor.BottomCentre,
                     Origin = Anchor.BottomCentre,
                     Margin = new MarginPadding { Bottom = 10 },
-                    Size = new Vector2(50, 30),
+                    Spacing = new Vector2(5),
+                    AutoSizeAxes = Axes.Both,
+                    Direction = FillDirection.Horizontal,
+                    Children = new Drawable[]
+                    {
+                        new ReplayDownloadButton(score),
+                        new RetryButton()
+                    }
                 },
             };
 

osu.Game/Screens/Ranking/Results.cs

@@ -19,6 +19,7 @@ using osu.Game.Graphics;
 using osu.Framework.Graphics.Shapes;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Scoring;
+using osu.Game.Screens.Play;
 
 namespace osu.Game.Screens.Ranking
 {
@@ -34,6 +35,9 @@ namespace osu.Game.Screens.Ranking
 
         private ResultModeTabControl modeChangeButtons;
 
+        [Resolved(canBeNull: true)]
+        private Player player { get; set; }
+
         public override bool DisallowExternalBeatmapRulesetChanges => true;
 
         protected readonly ScoreInfo Score;
@@ -100,10 +104,7 @@ namespace osu.Game.Screens.Ranking
 
         public override bool OnExiting(IScreen next)
         {
-            allCircles.ForEach(c =>
-            {
-                c.ScaleTo(0, transition_time, Easing.OutSine);
-            });
+            allCircles.ForEach(c => c.ScaleTo(0, transition_time, Easing.OutSine));
 
             Background.ScaleTo(1f, transition_time / 4, Easing.OutQuint);
 
@@ -115,147 +116,157 @@ namespace osu.Game.Screens.Ranking
         [BackgroundDependencyLoader]
         private void load(OsuColour colours)
         {
-            InternalChildren = new Drawable[]
+            InternalChild = new AspectContainer
             {
-                new AspectContainer
+                RelativeSizeAxes = Axes.Y,
+                Anchor = Anchor.Centre,
+                Origin = Anchor.Centre,
+                Height = overscan,
+                Children = new Drawable[]
                 {
-                    RelativeSizeAxes = Axes.Y,
-                    Anchor = Anchor.Centre,
-                    Origin = Anchor.Centre,
-                    Height = overscan,
-                    Children = new Drawable[]
+                    circleOuterBackground = new CircularContainer
                     {
-                        circleOuterBackground = new CircularContainer
+                        RelativeSizeAxes = Axes.Both,
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        Masking = true,
+                        Children = new Drawable[]
                         {
-                            RelativeSizeAxes = Axes.Both,
-                            Anchor = Anchor.Centre,
-                            Origin = Anchor.Centre,
-                            Masking = true,
-                            Children = new Drawable[]
+                            new Box
                             {
-                                new Box
-                                {
-                                    Alpha = 0.2f,
-                                    RelativeSizeAxes = Axes.Both,
-                                    Colour = Color4.Black,
-                                }
+                                Alpha = 0.2f,
+                                RelativeSizeAxes = Axes.Both,
+                                Colour = Color4.Black,
                             }
-                        },
-                        circleOuter = new CircularContainer
+                        }
+                    },
+                    circleOuter = new CircularContainer
+                    {
+                        Size = new Vector2(circle_outer_scale),
+                        EdgeEffect = new EdgeEffectParameters
                         {
-                            Size = new Vector2(circle_outer_scale),
-                            EdgeEffect = new EdgeEffectParameters
+                            Colour = Color4.Black.Opacity(0.4f),
+                            Type = EdgeEffectType.Shadow,
+                            Radius = 15,
+                        },
+                        RelativeSizeAxes = Axes.Both,
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        Masking = true,
+                        Children = new Drawable[]
+                        {
+                            new Box
                             {
-                                Colour = Color4.Black.Opacity(0.4f),
-                                Type = EdgeEffectType.Shadow,
-                                Radius = 15,
+                                RelativeSizeAxes = Axes.Both,
+                                Colour = Color4.White,
                             },
-                            RelativeSizeAxes = Axes.Both,
-                            Anchor = Anchor.Centre,
-                            Origin = Anchor.Centre,
-                            Masking = true,
-                            Children = new Drawable[]
+                            backgroundParallax = new ParallaxContainer
                             {
-                                new Box
+                                RelativeSizeAxes = Axes.Both,
+                                ParallaxAmount = 0.01f,
+                                Anchor = Anchor.Centre,
+                                Origin = Anchor.Centre,
+                                Children = new Drawable[]
                                 {
-                                    RelativeSizeAxes = Axes.Both,
-                                    Colour = Color4.White,
-                                },
-                                backgroundParallax = new ParallaxContainer
-                                {
-                                    RelativeSizeAxes = Axes.Both,
-                                    ParallaxAmount = 0.01f,
-                                    Anchor = Anchor.Centre,
-                                    Origin = Anchor.Centre,
-                                    Children = new Drawable[]
+                                    new Sprite
                                     {
-                                        new Sprite
-                                        {
-                                            RelativeSizeAxes = Axes.Both,
-                                            Alpha = 0.2f,
-                                            Texture = Beatmap.Value.Background,
-                                            Anchor = Anchor.Centre,
-                                            Origin = Anchor.Centre,
-                                            FillMode = FillMode.Fill
-                                        }
+                                        RelativeSizeAxes = Axes.Both,
+                                        Alpha = 0.2f,
+                                        Texture = Beatmap.Value.Background,
+                                        Anchor = Anchor.Centre,
+                                        Origin = Anchor.Centre,
+                                        FillMode = FillMode.Fill
                                     }
-                                },
-                                modeChangeButtons = new ResultModeTabControl
-                                {
-                                    Anchor = Anchor.BottomCentre,
-                                    Origin = Anchor.BottomCentre,
-                                    RelativeSizeAxes = Axes.X,
-                                    Height = 50,
-                                    Margin = new MarginPadding { Bottom = 110 },
-                                },
-                                new OsuSpriteText
-                                {
-                                    Anchor = Anchor.CentreLeft,
-                                    Origin = Anchor.BottomCentre,
-                                    Text = $"{Score.MaxCombo}x",
-                                    RelativePositionAxes = Axes.X,
-                                    Font = OsuFont.GetFont(weight: FontWeight.Bold, size: 40),
-                                    X = 0.1f,
-                                    Colour = colours.BlueDarker,
-                                },
-                                new OsuSpriteText
-                                {
-                                    Anchor = Anchor.CentreLeft,
-                                    Origin = Anchor.TopCentre,
-                                    Text = "max combo",
-                                    Font = OsuFont.GetFont(size: 20),
-                                    RelativePositionAxes = Axes.X,
-                                    X = 0.1f,
-                                    Colour = colours.Gray6,
-                                },
-                                new OsuSpriteText
-                                {
-                                    Anchor = Anchor.CentreLeft,
-                                    Origin = Anchor.BottomCentre,
-                                    Text = $"{Score.Accuracy:P2}",
-                                    Font = OsuFont.GetFont(weight: FontWeight.Bold, size: 40),
-                                    RelativePositionAxes = Axes.X,
-                                    X = 0.9f,
-                                    Colour = colours.BlueDarker,
-                                },
-                                new OsuSpriteText
-                                {
-                                    Anchor = Anchor.CentreLeft,
-                                    Origin = Anchor.TopCentre,
-                                    Text = "accuracy",
-                                    Font = OsuFont.GetFont(size: 20),
-                                    RelativePositionAxes = Axes.X,
-                                    X = 0.9f,
-                                    Colour = colours.Gray6,
-                                },
-                            }
-                        },
-                        circleInner = new CircularContainer
-                        {
-                            Size = new Vector2(0.6f),
-                            EdgeEffect = new EdgeEffectParameters
-                            {
-                                Colour = Color4.Black.Opacity(0.4f),
-                                Type = EdgeEffectType.Shadow,
-                                Radius = 15,
+                                }
                             },
-                            RelativeSizeAxes = Axes.Both,
-                            Anchor = Anchor.Centre,
-                            Origin = Anchor.Centre,
-                            Masking = true,
-                            Children = new Drawable[]
+                            modeChangeButtons = new ResultModeTabControl
                             {
-                                new Box
-                                {
-                                    RelativeSizeAxes = Axes.Both,
-                                    Colour = Color4.White,
-                                },
-                            }
+                                Anchor = Anchor.BottomCentre,
+                                Origin = Anchor.BottomCentre,
+                                RelativeSizeAxes = Axes.X,
+                                Height = 50,
+                                Margin = new MarginPadding { Bottom = 110 },
+                            },
+                            new OsuSpriteText
+                            {
+                                Anchor = Anchor.CentreLeft,
+                                Origin = Anchor.BottomCentre,
+                                Text = $"{Score.MaxCombo}x",
+                                RelativePositionAxes = Axes.X,
+                                Font = OsuFont.GetFont(weight: FontWeight.Bold, size: 40),
+                                X = 0.1f,
+                                Colour = colours.BlueDarker,
+                            },
+                            new OsuSpriteText
+                            {
+                                Anchor = Anchor.CentreLeft,
+                                Origin = Anchor.TopCentre,
+                                Text = "max combo",
+                                Font = OsuFont.GetFont(size: 20),
+                                RelativePositionAxes = Axes.X,
+                                X = 0.1f,
+                                Colour = colours.Gray6,
+                            },
+                            new OsuSpriteText
+                            {
+                                Anchor = Anchor.CentreLeft,
+                                Origin = Anchor.BottomCentre,
+                                Text = $"{Score.Accuracy:P2}",
+                                Font = OsuFont.GetFont(weight: FontWeight.Bold, size: 40),
+                                RelativePositionAxes = Axes.X,
+                                X = 0.9f,
+                                Colour = colours.BlueDarker,
+                            },
+                            new OsuSpriteText
+                            {
+                                Anchor = Anchor.CentreLeft,
+                                Origin = Anchor.TopCentre,
+                                Text = "accuracy",
+                                Font = OsuFont.GetFont(size: 20),
+                                RelativePositionAxes = Axes.X,
+                                X = 0.9f,
+                                Colour = colours.Gray6,
+                            },
+                        }
+                    },
+                    circleInner = new CircularContainer
+                    {
+                        Size = new Vector2(0.6f),
+                        EdgeEffect = new EdgeEffectParameters
+                        {
+                            Colour = Color4.Black.Opacity(0.4f),
+                            Type = EdgeEffectType.Shadow,
+                            Radius = 15,
+                        },
+                        RelativeSizeAxes = Axes.Both,
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        Masking = true,
+                        Children = new Drawable[]
+                        {
+                            new Box
+                            {
+                                RelativeSizeAxes = Axes.Both,
+                                Colour = Color4.White,
+                            },
                         }
                     }
                 }
             };
 
+            if (player != null)
+            {
+                AddInternal(new HotkeyRetryOverlay
+                {
+                    Action = () =>
+                    {
+                        if (!this.IsCurrentScreen()) return;
+
+                        player?.Restart();
+                    },
+                });
+            }
+
             var pages = CreateResultPages();
 
             foreach (var p in pages)

osu.Game/Screens/Select/Leaderboards/BeatmapLeaderboard.cs

@@ -179,7 +179,7 @@ namespace osu.Game.Screens.Select.Leaderboards
             return req;
         }
 
-        protected override LeaderboardScore CreateDrawableScore(ScoreInfo model, int index) => new LeaderboardScore(model, index)
+        protected override LeaderboardScore CreateDrawableScore(ScoreInfo model, int index) => new LeaderboardScore(model, index, IsOnlineScope)
         {
             Action = () => ScoreSelected?.Invoke(model)
         };

osu.Game/Screens/Select/Leaderboards/UserTopScoreContainer.cs

@@ -77,7 +77,7 @@ namespace osu.Game.Screens.Select.Leaderboards
             if (newScore == null)
                 return;
 
-            LoadComponentAsync(new LeaderboardScore(newScore.Score, newScore.Position)
+            LoadComponentAsync(new LeaderboardScore(newScore.Score, newScore.Position, false)
             {
                 Action = () => ScoreSelected?.Invoke(newScore.Score)
             }, drawableScore =>

osu.Game/Tests/Visual/SelectionBlueprintTestScene.cs

@@ -8,7 +8,7 @@ using osu.Game.Rulesets.Edit;
 
 namespace osu.Game.Tests.Visual
 {
-    public abstract class SelectionBlueprintTestScene : OsuTestScene
+    public abstract class SelectionBlueprintTestScene : ManualInputManagerTestScene
     {
         protected override Container<Drawable> Content => content ?? base.Content;
         private readonly Container content;

osu.iOS/AppDelegate.cs

@@ -4,7 +4,7 @@
 using System.Threading.Tasks;
 using Foundation;
 using osu.Framework.iOS;
-using osu.Game;
+using osu.Framework.Threading;
 using UIKit;
 
 namespace osu.iOS
@@ -16,9 +16,12 @@ namespace osu.iOS
 
         protected override Framework.Game CreateGame() => game = new OsuGameIOS();
 
-        public override bool OpenUrl(UIApplication application, NSUrl url, string sourceApplication, NSObject annotation)
+        public override bool OpenUrl(UIApplication app, NSUrl url, NSDictionary options)
         {
-            Task.Run(() => game.Import(url.Path));
+            if (url.IsFileUrl)
+                Task.Run(() => game.Import(url.Path));
+            else
+                Task.Run(() => game.HandleLink(url.AbsoluteString));
             return true;
         }
     }

osu.iOS/Info.plist

@@ -14,6 +14,8 @@
 	<string>0.1.0</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>LSSupportsOpeningDocumentsInPlace</key>
+	<true/>
 	<key>MinimumOSVersion</key>
 	<string>10.0</string>
 	<key>UIDeviceFamily</key>
@@ -32,9 +34,9 @@
 	<key>UIStatusBarHidden</key>
 	<true/>
 	<key>NSCameraUsageDescription</key>
-    <string>We don't really use the camera.</string>
-    <key>NSMicrophoneUsageDescription</key>
-    <string>We don't really use the microphone.</string>
+	<string>We don&apos;t really use the camera.</string>
+	<key>NSMicrophoneUsageDescription</key>
+	<string>We don&apos;t really use the microphone.</string>
 	<key>UISupportedInterfaceOrientations</key>
 	<array>
 		<string>UIInterfaceOrientationPortrait</string>
@@ -109,5 +111,17 @@
 			</array>
 		</dict>
 	</array>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>osu</string>
+				<string>osump</string>
+			</array>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+		</dict>
+	</array>
 </dict>
 </plist>