Merge branch 'master' into fix-incorrect-beatmap-set-info-equality

osu.Game.Tests/Visual/Background/TestSceneUserDimContainer.cs

@@ -285,6 +285,12 @@ namespace osu.Game.Tests.Visual.Background
             });
         }
 
+        protected override void Dispose(bool isDisposing)
+        {
+            base.Dispose(isDisposing);
+            rulesets?.Dispose();
+        }
+
         private class DummySongSelect : PlaySongSelect
         {
             protected override BackgroundScreen CreateBackground()

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

@@ -0,0 +1,58 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System;
+using System.Collections.Generic;
+using NUnit.Framework;
+using osu.Game.Online.API.Requests;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics;
+using osu.Game.Overlays.Comments;
+
+namespace osu.Game.Tests.Visual.Online
+{
+    [TestFixture]
+    public class TestSceneCommentsContainer : OsuTestScene
+    {
+        public override IReadOnlyList<Type> RequiredTypes => new[]
+        {
+            typeof(CommentsContainer),
+            typeof(CommentsHeader),
+            typeof(DrawableComment),
+            typeof(HeaderButton),
+            typeof(SortTabControl),
+            typeof(ShowChildrenButton),
+            typeof(DeletedChildrenPlaceholder)
+        };
+
+        protected override bool UseOnlineAPI => true;
+
+        public TestSceneCommentsContainer()
+        {
+            BasicScrollContainer scrollFlow;
+
+            Add(scrollFlow = new BasicScrollContainer
+            {
+                RelativeSizeAxes = Axes.Both,
+            });
+
+            AddStep("Big Black comments", () =>
+            {
+                scrollFlow.Clear();
+                scrollFlow.Add(new CommentsContainer(CommentableType.Beatmapset, 41823));
+            });
+
+            AddStep("Airman comments", () =>
+            {
+                scrollFlow.Clear();
+                scrollFlow.Add(new CommentsContainer(CommentableType.Beatmapset, 24313));
+            });
+
+            AddStep("lazer build comments", () =>
+            {
+                scrollFlow.Clear();
+                scrollFlow.Add(new CommentsContainer(CommentableType.Build, 4772));
+            });
+        }
+    }
+}

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

@@ -1,10 +1,12 @@
 // 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.Game.Overlays.Profile.Sections;
 using System;
 using System.Collections.Generic;
 using osu.Framework.Graphics;
+using osu.Game.Graphics.UserInterface;
+using osu.Framework.Allocation;
+using osu.Game.Graphics;
 
 namespace osu.Game.Tests.Visual.Online
 {
@@ -17,11 +19,11 @@ namespace osu.Game.Tests.Visual.Online
 
         public TestSceneShowMoreButton()
         {
-            ShowMoreButton button = null;
+            TestButton button = null;
 
             int fireCount = 0;
 
-            Add(button = new ShowMoreButton
+            Add(button = new TestButton
             {
                 Anchor = Anchor.Centre,
                 Origin = Anchor.Centre,
@@ -51,5 +53,16 @@ namespace osu.Game.Tests.Visual.Online
             AddAssert("action fired twice", () => fireCount == 2);
             AddAssert("is in loading state", () => button.IsLoading);
         }
+
+        private class TestButton : ShowMoreButton
+        {
+            [BackgroundDependencyLoader]
+            private void load(OsuColour colors)
+            {
+                IdleColour = colors.YellowDark;
+                HoverColour = colors.Yellow;
+                ChevronIconColour = colors.Red;
+            }
+        }
     }
 }

osu.Game.Tests/Visual/SongSelect/TestScenePlaySongSelect.cs

@@ -349,5 +349,11 @@ namespace osu.Game.Tests.Visual.SongSelect
                 DateAdded = DateTimeOffset.UtcNow,
             };
         }
+
+        protected override void Dispose(bool isDisposing)
+        {
+            base.Dispose(isDisposing);
+            rulesets?.Dispose();
+        }
     }
 }

osu.Game/Graphics/UserInterface/ShowMoreButton.cs

@@ -1,30 +1,36 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// 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.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Framework.Graphics.Sprites;
 using osu.Framework.Input.Events;
-using osu.Game.Graphics;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.Sprites;
-using osu.Game.Graphics.UserInterface;
 using osuTK;
+using osuTK.Graphics;
 using System.Collections.Generic;
 
-namespace osu.Game.Overlays.Profile.Sections
+namespace osu.Game.Graphics.UserInterface
 {
     public class ShowMoreButton : OsuHoverContainer
     {
         private const float fade_duration = 200;
 
-        private readonly Box background;
-        private readonly LoadingAnimation loading;
-        private readonly FillFlowContainer content;
+        private Color4 chevronIconColour;
 
-        protected override IEnumerable<Drawable> EffectTargets => new[] { background };
+        protected Color4 ChevronIconColour
+        {
+            get => chevronIconColour;
+            set => chevronIconColour = leftChevron.Colour = rightChevron.Colour = value;
+        }
+
+        public string Text
+        {
+            get => text.Text;
+            set => text.Text = value;
+        }
 
         private bool isLoading;
 
@@ -33,26 +39,32 @@ namespace osu.Game.Overlays.Profile.Sections
             get => isLoading;
             set
             {
-                if (isLoading == value)
-                    return;
-
                 isLoading = value;
 
                 Enabled.Value = !isLoading;
 
                 if (value)
                 {
-                    loading.FadeIn(fade_duration, Easing.OutQuint);
+                    loading.Show();
                     content.FadeOut(fade_duration, Easing.OutQuint);
                 }
                 else
                 {
-                    loading.FadeOut(fade_duration, Easing.OutQuint);
+                    loading.Hide();
                     content.FadeIn(fade_duration, Easing.OutQuint);
                 }
             }
         }
 
+        private readonly Box background;
+        private readonly LoadingAnimation loading;
+        private readonly FillFlowContainer content;
+        private readonly ChevronIcon leftChevron;
+        private readonly ChevronIcon rightChevron;
+        private readonly SpriteText text;
+
+        protected override IEnumerable<Drawable> EffectTargets => new[] { background };
+
         public ShowMoreButton()
         {
             AutoSizeAxes = Axes.Both;
@@ -77,15 +89,15 @@ namespace osu.Game.Overlays.Profile.Sections
                             Spacing = new Vector2(7),
                             Children = new Drawable[]
                             {
-                                new ChevronIcon(),
-                                new OsuSpriteText
+                                leftChevron = new ChevronIcon(),
+                                text = new OsuSpriteText
                                 {
                                     Anchor = Anchor.Centre,
                                     Origin = Anchor.Centre,
                                     Font = OsuFont.GetFont(size: 12, weight: FontWeight.Bold),
                                     Text = "show more".ToUpper(),
                                 },
-                                new ChevronIcon(),
+                                rightChevron = new ChevronIcon(),
                             }
                         },
                         loading = new LoadingAnimation
@@ -99,13 +111,6 @@ namespace osu.Game.Overlays.Profile.Sections
             };
         }
 
-        [BackgroundDependencyLoader]
-        private void load(OsuColour colors)
-        {
-            IdleColour = colors.GreySeafoamDark;
-            HoverColour = colors.GreySeafoam;
-        }
-
         protected override bool OnClick(ClickEvent e)
         {
             if (!Enabled.Value)
@@ -133,12 +138,6 @@ namespace osu.Game.Overlays.Profile.Sections
                 Size = new Vector2(icon_size);
                 Icon = FontAwesome.Solid.ChevronDown;
             }
-
-            [BackgroundDependencyLoader]
-            private void load(OsuColour colors)
-            {
-                Colour = colors.Yellow;
-            }
         }
     }
 }

osu.Game/Online/API/Requests/GetCommentsRequest.cs

@@ -0,0 +1,47 @@
+// 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.IO.Network;
+using Humanizer;
+using osu.Game.Online.API.Requests.Responses;
+using osu.Game.Overlays.Comments;
+
+namespace osu.Game.Online.API.Requests
+{
+    public class GetCommentsRequest : APIRequest<CommentBundle>
+    {
+        private readonly long id;
+        private readonly int page;
+        private readonly CommentableType type;
+        private readonly CommentsSortCriteria sort;
+
+        public GetCommentsRequest(CommentableType type, long id, CommentsSortCriteria sort = CommentsSortCriteria.New, int page = 1)
+        {
+            this.type = type;
+            this.sort = sort;
+            this.id = id;
+            this.page = page;
+        }
+
+        protected override WebRequest CreateWebRequest()
+        {
+            var req = base.CreateWebRequest();
+
+            req.AddParameter("commentable_type", type.ToString().Underscore().ToLowerInvariant());
+            req.AddParameter("commentable_id", id.ToString());
+            req.AddParameter("sort", sort.ToString().ToLowerInvariant());
+            req.AddParameter("page", page.ToString());
+
+            return req;
+        }
+
+        protected override string Target => "comments";
+    }
+
+    public enum CommentableType
+    {
+        Build,
+        Beatmapset,
+        NewsPost
+    }
+}

osu.Game/Online/API/Requests/Responses/Comment.cs

@@ -0,0 +1,79 @@
+// 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 Newtonsoft.Json;
+using osu.Game.Users;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Text.RegularExpressions;
+
+namespace osu.Game.Online.API.Requests.Responses
+{
+    public class Comment
+    {
+        [JsonProperty(@"id")]
+        public long Id { get; set; }
+
+        [JsonProperty(@"parent_id")]
+        public long? ParentId { get; set; }
+
+        public readonly List<Comment> ChildComments = new List<Comment>();
+
+        public Comment ParentComment { get; set; }
+
+        [JsonProperty(@"user_id")]
+        public long? UserId { get; set; }
+
+        public User User { get; set; }
+
+        [JsonProperty(@"message")]
+        public string Message { get; set; }
+
+        [JsonProperty(@"message_html")]
+        public string MessageHtml { get; set; }
+
+        [JsonProperty(@"replies_count")]
+        public int RepliesCount { get; set; }
+
+        [JsonProperty(@"votes_count")]
+        public int VotesCount { get; set; }
+
+        [JsonProperty(@"commenatble_type")]
+        public string CommentableType { get; set; }
+
+        [JsonProperty(@"commentable_id")]
+        public int CommentableId { get; set; }
+
+        [JsonProperty(@"legacy_name")]
+        public string LegacyName { get; set; }
+
+        [JsonProperty(@"created_at")]
+        public DateTimeOffset CreatedAt { get; set; }
+
+        [JsonProperty(@"updated_at")]
+        public DateTimeOffset? UpdatedAt { get; set; }
+
+        [JsonProperty(@"deleted_at")]
+        public DateTimeOffset? DeletedAt { get; set; }
+
+        [JsonProperty(@"edited_at")]
+        public DateTimeOffset? EditedAt { get; set; }
+
+        [JsonProperty(@"edited_by_id")]
+        public long? EditedById { get; set; }
+
+        public User EditedUser { get; set; }
+
+        public bool IsTopLevel => !ParentId.HasValue;
+
+        public bool IsDeleted => DeletedAt.HasValue;
+
+        public bool HasMessage => !string.IsNullOrEmpty(MessageHtml);
+
+        public string GetMessage => HasMessage ? WebUtility.HtmlDecode(Regex.Replace(MessageHtml, @"<(.|\n)*?>", string.Empty)) : string.Empty;
+
+        public int DeletedChildrenCount => ChildComments.Count(c => c.IsDeleted);
+    }
+}

osu.Game/Online/API/Requests/Responses/CommentBundle.cs

@@ -0,0 +1,80 @@
+// 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 Newtonsoft.Json;
+using osu.Game.Users;
+using System.Collections.Generic;
+
+namespace osu.Game.Online.API.Requests.Responses
+{
+    public class CommentBundle
+    {
+        private List<Comment> comments;
+
+        [JsonProperty(@"comments")]
+        public List<Comment> Comments
+        {
+            get => comments;
+            set
+            {
+                comments = value;
+                comments.ForEach(child =>
+                {
+                    if (child.ParentId != null)
+                    {
+                        comments.ForEach(parent =>
+                        {
+                            if (parent.Id == child.ParentId)
+                            {
+                                parent.ChildComments.Add(child);
+                                child.ParentComment = parent;
+                            }
+                        });
+                    }
+                });
+            }
+        }
+
+        [JsonProperty(@"has_more")]
+        public bool HasMore { get; set; }
+
+        [JsonProperty(@"has_more_id")]
+        public long? HasMoreId { get; set; }
+
+        [JsonProperty(@"user_follow")]
+        public bool UserFollow { get; set; }
+
+        [JsonProperty(@"included_comments")]
+        public List<Comment> IncludedComments { get; set; }
+
+        private List<User> users;
+
+        [JsonProperty(@"users")]
+        public List<User> Users
+        {
+            get => users;
+            set
+            {
+                users = value;
+
+                value.ForEach(u =>
+                {
+                    Comments.ForEach(c =>
+                    {
+                        if (c.UserId == u.Id)
+                            c.User = u;
+
+                        if (c.EditedById == u.Id)
+                            c.EditedUser = u;
+                    });
+                });
+            }
+        }
+
+        [JsonProperty(@"total")]
+        public int Total { get; set; }
+
+        [JsonProperty(@"top_level_count")]
+        public int TopLevelCount { get; set; }
+    }
+}

osu.Game/OsuGameBase.cs

@@ -298,6 +298,12 @@ namespace osu.Game
 
         public string[] HandledExtensions => fileImporters.SelectMany(i => i.HandledExtensions).ToArray();
 
+        protected override void Dispose(bool isDisposing)
+        {
+            base.Dispose(isDisposing);
+            RulesetStore?.Dispose();
+        }
+
         private class OsuUserInputManager : UserInputManager
         {
             protected override MouseButtonEventManager CreateButtonManagerFor(MouseButton button)

osu.Game/Overlays/Comments/CommentsContainer.cs

@@ -0,0 +1,197 @@
+// 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.Containers;
+using osu.Game.Online.API;
+using osu.Game.Online.API.Requests;
+using osu.Framework.Graphics;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics;
+using osu.Game.Online.API.Requests.Responses;
+using System.Threading;
+using System.Linq;
+using osu.Framework.Extensions.IEnumerableExtensions;
+
+namespace osu.Game.Overlays.Comments
+{
+    public class CommentsContainer : CompositeDrawable
+    {
+        private readonly CommentableType type;
+        private readonly long id;
+
+        public readonly Bindable<CommentsSortCriteria> Sort = new Bindable<CommentsSortCriteria>();
+        public readonly BindableBool ShowDeleted = new BindableBool();
+
+        [Resolved]
+        private IAPIProvider api { get; set; }
+
+        [Resolved]
+        private OsuColour colours { get; set; }
+
+        private GetCommentsRequest request;
+        private CancellationTokenSource loadCancellation;
+        private int currentPage;
+
+        private readonly Box background;
+        private readonly FillFlowContainer content;
+        private readonly DeletedChildrenPlaceholder deletedChildrenPlaceholder;
+        private readonly CommentsShowMoreButton moreButton;
+
+        public CommentsContainer(CommentableType type, long id)
+        {
+            this.type = type;
+            this.id = id;
+
+            RelativeSizeAxes = Axes.X;
+            AutoSizeAxes = Axes.Y;
+            AddRangeInternal(new Drawable[]
+            {
+                background = new Box
+                {
+                    RelativeSizeAxes = Axes.Both,
+                },
+                new FillFlowContainer
+                {
+                    RelativeSizeAxes = Axes.X,
+                    AutoSizeAxes = Axes.Y,
+                    Direction = FillDirection.Vertical,
+                    Children = new Drawable[]
+                    {
+                        new CommentsHeader
+                        {
+                            Sort = { BindTarget = Sort },
+                            ShowDeleted = { BindTarget = ShowDeleted }
+                        },
+                        content = new FillFlowContainer
+                        {
+                            RelativeSizeAxes = Axes.X,
+                            AutoSizeAxes = Axes.Y,
+                            Direction = FillDirection.Vertical,
+                        },
+                        new Container
+                        {
+                            RelativeSizeAxes = Axes.X,
+                            AutoSizeAxes = Axes.Y,
+                            Children = new Drawable[]
+                            {
+                                new Box
+                                {
+                                    RelativeSizeAxes = Axes.Both,
+                                    Colour = OsuColour.Gray(0.2f)
+                                },
+                                new FillFlowContainer
+                                {
+                                    RelativeSizeAxes = Axes.X,
+                                    AutoSizeAxes = Axes.Y,
+                                    Direction = FillDirection.Vertical,
+                                    Children = new Drawable[]
+                                    {
+                                        deletedChildrenPlaceholder = new DeletedChildrenPlaceholder
+                                        {
+                                            ShowDeleted = { BindTarget = ShowDeleted }
+                                        },
+                                        new Container
+                                        {
+                                            AutoSizeAxes = Axes.Y,
+                                            RelativeSizeAxes = Axes.X,
+                                            Child = moreButton = new CommentsShowMoreButton
+                                            {
+                                                Anchor = Anchor.Centre,
+                                                Origin = Anchor.Centre,
+                                                Margin = new MarginPadding(5),
+                                                Action = getComments
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            });
+        }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            background.Colour = colours.Gray2;
+        }
+
+        protected override void LoadComplete()
+        {
+            Sort.BindValueChanged(onSortChanged, true);
+            base.LoadComplete();
+        }
+
+        private void onSortChanged(ValueChangedEvent<CommentsSortCriteria> sort)
+        {
+            clearComments();
+            getComments();
+        }
+
+        private void getComments()
+        {
+            request?.Cancel();
+            loadCancellation?.Cancel();
+            request = new GetCommentsRequest(type, id, Sort.Value, currentPage++);
+            request.Success += onSuccess;
+            api.Queue(request);
+        }
+
+        private void clearComments()
+        {
+            currentPage = 1;
+            deletedChildrenPlaceholder.DeletedCount.Value = 0;
+            moreButton.IsLoading = true;
+            content.Clear();
+        }
+
+        private void onSuccess(CommentBundle response)
+        {
+            loadCancellation = new CancellationTokenSource();
+
+            FillFlowContainer page = new FillFlowContainer
+            {
+                RelativeSizeAxes = Axes.X,
+                AutoSizeAxes = Axes.Y,
+                Direction = FillDirection.Vertical,
+            };
+
+            foreach (var c in response.Comments)
+            {
+                if (c.IsTopLevel)
+                    page.Add(new DrawableComment(c)
+                    {
+                        ShowDeleted = { BindTarget = ShowDeleted }
+                    });
+            }
+
+            LoadComponentAsync(page, loaded =>
+            {
+                content.Add(loaded);
+
+                deletedChildrenPlaceholder.DeletedCount.Value += response.Comments.Count(c => c.IsDeleted && c.IsTopLevel);
+
+                if (response.HasMore)
+                {
+                    int loadedTopLevelComments = 0;
+                    content.Children.OfType<FillFlowContainer>().ForEach(p => loadedTopLevelComments += p.Children.OfType<DrawableComment>().Count());
+
+                    moreButton.Current.Value = response.TopLevelCount - loadedTopLevelComments;
+                    moreButton.IsLoading = false;
+                }
+
+                moreButton.FadeTo(response.HasMore ? 1 : 0);
+            }, loadCancellation.Token);
+        }
+
+        protected override void Dispose(bool isDisposing)
+        {
+            request?.Cancel();
+            loadCancellation?.Cancel();
+            base.Dispose(isDisposing);
+        }
+    }
+}

osu.Game/Overlays/Comments/CommentsShowMoreButton.cs

@@ -0,0 +1,32 @@
+// 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.Game.Graphics;
+using osu.Game.Graphics.UserInterface;
+
+namespace osu.Game.Overlays.Comments
+{
+    public class CommentsShowMoreButton : ShowMoreButton
+    {
+        public readonly BindableInt Current = new BindableInt();
+
+        public CommentsShowMoreButton()
+        {
+            IdleColour = OsuColour.Gray(0.3f);
+            HoverColour = OsuColour.Gray(0.4f);
+            ChevronIconColour = OsuColour.Gray(0.5f);
+        }
+
+        protected override void LoadComplete()
+        {
+            Current.BindValueChanged(onCurrentChanged, true);
+            base.LoadComplete();
+        }
+
+        private void onCurrentChanged(ValueChangedEvent<int> count)
+        {
+            Text = $@"Show More ({count.NewValue})".ToUpper();
+        }
+    }
+}

osu.Game/Overlays/Comments/DeletedChildrenPlaceholder.cs

@@ -0,0 +1,61 @@
+// 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.Graphics.Containers;
+using osu.Framework.Graphics;
+using osu.Game.Graphics;
+using osu.Framework.Graphics.Sprites;
+using osuTK;
+using osu.Framework.Bindables;
+using Humanizer;
+
+namespace osu.Game.Overlays.Comments
+{
+    public class DeletedChildrenPlaceholder : FillFlowContainer
+    {
+        public readonly BindableBool ShowDeleted = new BindableBool();
+        public readonly BindableInt DeletedCount = new BindableInt();
+
+        private readonly SpriteText countText;
+
+        public DeletedChildrenPlaceholder()
+        {
+            AutoSizeAxes = Axes.Both;
+            Direction = FillDirection.Horizontal;
+            Spacing = new Vector2(3, 0);
+            Margin = new MarginPadding { Vertical = 10, Left = 80 };
+            Children = new Drawable[]
+            {
+                new SpriteIcon
+                {
+                    Icon = FontAwesome.Solid.Trash,
+                    Size = new Vector2(14),
+                },
+                countText = new SpriteText
+                {
+                    Font = OsuFont.GetFont(size: 14, weight: FontWeight.Bold, italics: true),
+                }
+            };
+        }
+
+        protected override void LoadComplete()
+        {
+            DeletedCount.BindValueChanged(_ => updateDisplay(), true);
+            ShowDeleted.BindValueChanged(_ => updateDisplay(), true);
+            base.LoadComplete();
+        }
+
+        private void updateDisplay()
+        {
+            if (DeletedCount.Value != 0)
+            {
+                countText.Text = @"deleted comment".ToQuantity(DeletedCount.Value);
+                this.FadeTo(ShowDeleted.Value ? 0 : 1);
+            }
+            else
+            {
+                Hide();
+            }
+        }
+    }
+}

osu.Game/Overlays/Comments/DrawableComment.cs

@@ -0,0 +1,363 @@
+// 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.Graphics.Containers;
+using osu.Framework.Graphics;
+using osu.Game.Graphics;
+using osu.Framework.Graphics.Sprites;
+using osuTK;
+using osu.Game.Online.API.Requests.Responses;
+using osu.Game.Users.Drawables;
+using osu.Game.Graphics.Containers;
+using osu.Game.Utils;
+using osu.Framework.Graphics.Cursor;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics.Shapes;
+using System.Linq;
+using osu.Game.Online.Chat;
+
+namespace osu.Game.Overlays.Comments
+{
+    public class DrawableComment : CompositeDrawable
+    {
+        private const int avatar_size = 40;
+        private const int margin = 10;
+
+        public readonly BindableBool ShowDeleted = new BindableBool();
+
+        private readonly BindableBool childrenExpanded = new BindableBool(true);
+
+        private readonly FillFlowContainer childCommentsVisibilityContainer;
+        private readonly Comment comment;
+
+        public DrawableComment(Comment comment)
+        {
+            LinkFlowContainer username;
+            FillFlowContainer childCommentsContainer;
+            DeletedChildrenPlaceholder deletedChildrenPlaceholder;
+            FillFlowContainer info;
+            LinkFlowContainer message;
+            GridContainer content;
+            VotePill votePill;
+
+            this.comment = comment;
+
+            RelativeSizeAxes = Axes.X;
+            AutoSizeAxes = Axes.Y;
+            InternalChild = new FillFlowContainer
+            {
+                RelativeSizeAxes = Axes.X,
+                AutoSizeAxes = Axes.Y,
+                Direction = FillDirection.Vertical,
+                Children = new Drawable[]
+                {
+                    new Container
+                    {
+                        RelativeSizeAxes = Axes.X,
+                        AutoSizeAxes = Axes.Y,
+                        Padding = new MarginPadding(margin),
+                        Child = content = new GridContainer
+                        {
+                            RelativeSizeAxes = Axes.X,
+                            AutoSizeAxes = Axes.Y,
+                            ColumnDimensions = new[]
+                            {
+                                new Dimension(GridSizeMode.AutoSize),
+                                new Dimension(),
+                            },
+                            RowDimensions = new[]
+                            {
+                                new Dimension(GridSizeMode.AutoSize)
+                            },
+                            Content = new[]
+                            {
+                                new Drawable[]
+                                {
+                                    new FillFlowContainer
+                                    {
+                                        AutoSizeAxes = Axes.Both,
+                                        Margin = new MarginPadding { Horizontal = margin },
+                                        Direction = FillDirection.Horizontal,
+                                        Spacing = new Vector2(5, 0),
+                                        Children = new Drawable[]
+                                        {
+                                            votePill = new VotePill(comment.VotesCount)
+                                            {
+                                                Anchor = Anchor.Centre,
+                                                Origin = Anchor.Centre,
+                                                AlwaysPresent = true,
+                                            },
+                                            new UpdateableAvatar(comment.User)
+                                            {
+                                                Anchor = Anchor.Centre,
+                                                Origin = Anchor.Centre,
+                                                Size = new Vector2(avatar_size),
+                                                Masking = true,
+                                                CornerRadius = avatar_size / 2f,
+                                            },
+                                        }
+                                    },
+                                    new FillFlowContainer
+                                    {
+                                        RelativeSizeAxes = Axes.X,
+                                        AutoSizeAxes = Axes.Y,
+                                        Spacing = new Vector2(0, 3),
+                                        Children = new Drawable[]
+                                        {
+                                            new FillFlowContainer
+                                            {
+                                                AutoSizeAxes = Axes.Both,
+                                                Direction = FillDirection.Horizontal,
+                                                Spacing = new Vector2(7, 0),
+                                                Children = new Drawable[]
+                                                {
+                                                    username = new LinkFlowContainer(s => s.Font = OsuFont.GetFont(size: 14, weight: FontWeight.Bold, italics: true))
+                                                    {
+                                                        AutoSizeAxes = Axes.Both,
+                                                    },
+                                                    new ParentUsername(comment),
+                                                    new SpriteText
+                                                    {
+                                                        Alpha = comment.IsDeleted ? 1 : 0,
+                                                        Font = OsuFont.GetFont(size: 14, weight: FontWeight.Bold, italics: true),
+                                                        Text = @"deleted",
+                                                    }
+                                                }
+                                            },
+                                            message = new LinkFlowContainer(s => s.Font = OsuFont.GetFont(size: 14))
+                                            {
+                                                RelativeSizeAxes = Axes.X,
+                                                AutoSizeAxes = Axes.Y,
+                                                Padding = new MarginPadding { Right = 40 }
+                                            },
+                                            info = new FillFlowContainer
+                                            {
+                                                AutoSizeAxes = Axes.Both,
+                                                Direction = FillDirection.Horizontal,
+                                                Spacing = new Vector2(10, 0),
+                                                Colour = OsuColour.Gray(0.7f),
+                                                Children = new Drawable[]
+                                                {
+                                                    new SpriteText
+                                                    {
+                                                        Anchor = Anchor.CentreLeft,
+                                                        Origin = Anchor.CentreLeft,
+                                                        Font = OsuFont.GetFont(size: 12),
+                                                        Text = HumanizerUtils.Humanize(comment.CreatedAt)
+                                                    },
+                                                    new RepliesButton(comment.RepliesCount)
+                                                    {
+                                                        Expanded = { BindTarget = childrenExpanded }
+                                                    },
+                                                }
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    },
+                    childCommentsVisibilityContainer = new FillFlowContainer
+                    {
+                        RelativeSizeAxes = Axes.X,
+                        AutoSizeAxes = Axes.Y,
+                        Direction = FillDirection.Vertical,
+                        Children = new Drawable[]
+                        {
+                            childCommentsContainer = new FillFlowContainer
+                            {
+                                Padding = new MarginPadding { Left = 20 },
+                                RelativeSizeAxes = Axes.X,
+                                AutoSizeAxes = Axes.Y,
+                                Direction = FillDirection.Vertical
+                            },
+                            deletedChildrenPlaceholder = new DeletedChildrenPlaceholder
+                            {
+                                ShowDeleted = { BindTarget = ShowDeleted }
+                            }
+                        }
+                    }
+                }
+            };
+
+            deletedChildrenPlaceholder.DeletedCount.Value = comment.DeletedChildrenCount;
+
+            if (comment.UserId.HasValue)
+                username.AddUserLink(comment.User);
+            else
+                username.AddText(comment.LegacyName);
+
+            if (comment.EditedAt.HasValue)
+            {
+                info.Add(new SpriteText
+                {
+                    Anchor = Anchor.CentreLeft,
+                    Origin = Anchor.CentreLeft,
+                    Font = OsuFont.GetFont(size: 12),
+                    Text = $@"edited {HumanizerUtils.Humanize(comment.EditedAt.Value)} by {comment.EditedUser.Username}"
+                });
+            }
+
+            if (comment.HasMessage)
+            {
+                var formattedSource = MessageFormatter.FormatText(comment.GetMessage);
+                message.AddLinks(formattedSource.Text, formattedSource.Links);
+            }
+
+            if (comment.IsDeleted)
+            {
+                content.FadeColour(OsuColour.Gray(0.5f));
+                votePill.Hide();
+            }
+
+            if (comment.IsTopLevel)
+            {
+                AddInternal(new Container
+                {
+                    RelativeSizeAxes = Axes.X,
+                    Height = 1.5f,
+                    Anchor = Anchor.BottomCentre,
+                    Origin = Anchor.BottomCentre,
+                    Child = new Box
+                    {
+                        RelativeSizeAxes = Axes.Both,
+                        Colour = OsuColour.Gray(0.1f)
+                    }
+                });
+
+                if (comment.ChildComments.Any())
+                {
+                    AddInternal(new ChevronButton(comment)
+                    {
+                        Anchor = Anchor.TopRight,
+                        Origin = Anchor.TopRight,
+                        Margin = new MarginPadding { Right = 30, Top = margin },
+                        Expanded = { BindTarget = childrenExpanded }
+                    });
+                }
+            }
+
+            comment.ChildComments.ForEach(c => childCommentsContainer.Add(new DrawableComment(c)
+            {
+                ShowDeleted = { BindTarget = ShowDeleted }
+            }));
+        }
+
+        protected override void LoadComplete()
+        {
+            ShowDeleted.BindValueChanged(show =>
+            {
+                if (comment.IsDeleted)
+                    this.FadeTo(show.NewValue ? 1 : 0);
+            }, true);
+            childrenExpanded.BindValueChanged(expanded => childCommentsVisibilityContainer.FadeTo(expanded.NewValue ? 1 : 0), true);
+            base.LoadComplete();
+        }
+
+        private class ChevronButton : ShowChildrenButton
+        {
+            private readonly SpriteIcon icon;
+
+            public ChevronButton(Comment comment)
+            {
+                Alpha = comment.IsTopLevel && comment.ChildComments.Any() ? 1 : 0;
+                Child = icon = new SpriteIcon
+                {
+                    Size = new Vector2(12),
+                    Colour = OsuColour.Gray(0.7f)
+                };
+            }
+
+            protected override void OnExpandedChanged(ValueChangedEvent<bool> expanded)
+            {
+                icon.Icon = expanded.NewValue ? FontAwesome.Solid.ChevronUp : FontAwesome.Solid.ChevronDown;
+            }
+        }
+
+        private class RepliesButton : ShowChildrenButton
+        {
+            private readonly SpriteText text;
+            private readonly int count;
+
+            public RepliesButton(int count)
+            {
+                this.count = count;
+
+                Alpha = count == 0 ? 0 : 1;
+                Child = text = new SpriteText
+                {
+                    Font = OsuFont.GetFont(size: 12, weight: FontWeight.Bold),
+                };
+            }
+
+            protected override void OnExpandedChanged(ValueChangedEvent<bool> expanded)
+            {
+                text.Text = $@"{(expanded.NewValue ? "[+]" : "[-]")} replies ({count})";
+            }
+        }
+
+        private class ParentUsername : FillFlowContainer, IHasTooltip
+        {
+            public string TooltipText => getParentMessage();
+
+            private readonly Comment parentComment;
+
+            public ParentUsername(Comment comment)
+            {
+                parentComment = comment.ParentComment;
+
+                AutoSizeAxes = Axes.Both;
+                Direction = FillDirection.Horizontal;
+                Spacing = new Vector2(3, 0);
+                Alpha = comment.ParentId == null ? 0 : 1;
+                Children = new Drawable[]
+                {
+                    new SpriteIcon
+                    {
+                        Icon = FontAwesome.Solid.Reply,
+                        Size = new Vector2(14),
+                    },
+                    new SpriteText
+                    {
+                        Font = OsuFont.GetFont(size: 14, weight: FontWeight.Bold, italics: true),
+                        Text = parentComment?.User?.Username ?? parentComment?.LegacyName
+                    }
+                };
+            }
+
+            private string getParentMessage()
+            {
+                if (parentComment == null)
+                    return string.Empty;
+
+                return parentComment.HasMessage ? parentComment.GetMessage : parentComment.IsDeleted ? @"deleted" : string.Empty;
+            }
+        }
+
+        private class VotePill : CircularContainer
+        {
+            public VotePill(int count)
+            {
+                AutoSizeAxes = Axes.X;
+                Height = 20;
+                Masking = true;
+                Children = new Drawable[]
+                {
+                    new Box
+                    {
+                        RelativeSizeAxes = Axes.Both,
+                        Colour = OsuColour.Gray(0.05f)
+                    },
+                    new SpriteText
+                    {
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        Margin = new MarginPadding { Horizontal = margin },
+                        Font = OsuFont.GetFont(size: 14),
+                        Text = $"+{count}"
+                    }
+                };
+            }
+        }
+    }
+}

osu.Game/Overlays/Comments/ShowChildrenButton.cs

@@ -0,0 +1,34 @@
+// 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.Graphics;
+using osu.Game.Graphics.Containers;
+using osu.Framework.Input.Events;
+using osu.Framework.Bindables;
+
+namespace osu.Game.Overlays.Comments
+{
+    public abstract class ShowChildrenButton : OsuHoverContainer
+    {
+        public readonly BindableBool Expanded = new BindableBool(true);
+
+        protected ShowChildrenButton()
+        {
+            AutoSizeAxes = Axes.Both;
+        }
+
+        protected override void LoadComplete()
+        {
+            Expanded.BindValueChanged(OnExpandedChanged, true);
+            base.LoadComplete();
+        }
+
+        protected abstract void OnExpandedChanged(ValueChangedEvent<bool> expanded);
+
+        protected override bool OnClick(ClickEvent e)
+        {
+            Expanded.Value = !Expanded.Value;
+            return true;
+        }
+    }
+}

osu.Game/Overlays/Profile/Sections/PaginatedContainer.cs

@@ -19,7 +19,7 @@ namespace osu.Game.Overlays.Profile.Sections
 {
     public abstract class PaginatedContainer<TModel> : FillFlowContainer
     {
-        private readonly ShowMoreButton moreButton;
+        private readonly ProfileShowMoreButton moreButton;
         private readonly OsuSpriteText missingText;
         private APIRequest<List<TModel>> retrievalRequest;
         private CancellationTokenSource loadCancellation;
@@ -56,7 +56,7 @@ namespace osu.Game.Overlays.Profile.Sections
                     RelativeSizeAxes = Axes.X,
                     Spacing = new Vector2(0, 2),
                 },
-                moreButton = new ShowMoreButton
+                moreButton = new ProfileShowMoreButton
                 {
                     Anchor = Anchor.TopCentre,
                     Origin = Anchor.TopCentre,

osu.Game/Overlays/Profile/Sections/ProfileShowMoreButton.cs

@@ -0,0 +1,20 @@
+// 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.Game.Graphics;
+using osu.Game.Graphics.UserInterface;
+
+namespace osu.Game.Overlays.Profile.Sections
+{
+    public class ProfileShowMoreButton : ShowMoreButton
+    {
+        [BackgroundDependencyLoader]
+        private void load(OsuColour colors)
+        {
+            IdleColour = colors.GreySeafoamDark;
+            HoverColour = colors.GreySeafoam;
+            ChevronIconColour = colors.Yellow;
+        }
+    }
+}

osu.Game/Rulesets/RulesetStore.cs

@@ -11,28 +11,22 @@ using osu.Game.Database;
 
 namespace osu.Game.Rulesets
 {
-    /// <summary>
-    /// Todo: All of this needs to be moved to a RulesetStore.
-    /// </summary>
-    public class RulesetStore : DatabaseBackedStore
+    public class RulesetStore : DatabaseBackedStore, IDisposable
     {
-        private static readonly Dictionary<Assembly, Type> loaded_assemblies = new Dictionary<Assembly, Type>();
+        private const string ruleset_library_prefix = "osu.Game.Rulesets";
 
-        static RulesetStore()
-        {
-            AppDomain.CurrentDomain.AssemblyResolve += currentDomain_AssemblyResolve;
-
-            // On android in release configuration assemblies are loaded from the apk directly into memory.
-            // We cannot read assemblies from cwd, so should check loaded assemblies instead.
-            loadFromAppDomain();
-
-            loadFromDisk();
-        }
+        private readonly Dictionary<Assembly, Type> loadedAssemblies = new Dictionary<Assembly, Type>();
 
         public RulesetStore(IDatabaseContextFactory factory)
             : base(factory)
         {
+            // On android in release configuration assemblies are loaded from the apk directly into memory.
+            // We cannot read assemblies from cwd, so should check loaded assemblies instead.
+            loadFromAppDomain();
+            loadFromDisk();
             addMissingRulesets();
+
+            AppDomain.CurrentDomain.AssemblyResolve += resolveRulesetAssembly;
         }
 
         /// <summary>
@@ -54,9 +48,7 @@ namespace osu.Game.Rulesets
         /// </summary>
         public IEnumerable<RulesetInfo> AvailableRulesets { get; private set; }
 
-        private static Assembly currentDomain_AssemblyResolve(object sender, ResolveEventArgs args) => loaded_assemblies.Keys.FirstOrDefault(a => a.FullName == args.Name);
-
-        private const string ruleset_library_prefix = "osu.Game.Rulesets";
+        private Assembly resolveRulesetAssembly(object sender, ResolveEventArgs args) => loadedAssemblies.Keys.FirstOrDefault(a => a.FullName == args.Name);
 
         private void addMissingRulesets()
         {
@@ -64,7 +56,7 @@ namespace osu.Game.Rulesets
             {
                 var context = usage.Context;
 
-                var instances = loaded_assemblies.Values.Select(r => (Ruleset)Activator.CreateInstance(r, (RulesetInfo)null)).ToList();
+                var instances = loadedAssemblies.Values.Select(r => (Ruleset)Activator.CreateInstance(r, (RulesetInfo)null)).ToList();
 
                 //add all legacy modes in correct order
                 foreach (var r in instances.Where(r => r.LegacyID != null).OrderBy(r => r.LegacyID))
@@ -113,7 +105,7 @@ namespace osu.Game.Rulesets
             }
         }
 
-        private static void loadFromAppDomain()
+        private void loadFromAppDomain()
         {
             foreach (var ruleset in AppDomain.CurrentDomain.GetAssemblies())
             {
@@ -126,7 +118,7 @@ namespace osu.Game.Rulesets
             }
         }
 
-        private static void loadFromDisk()
+        private void loadFromDisk()
         {
             try
             {
@@ -141,11 +133,11 @@ namespace osu.Game.Rulesets
             }
         }
 
-        private static void loadRulesetFromFile(string file)
+        private void loadRulesetFromFile(string file)
         {
             var filename = Path.GetFileNameWithoutExtension(file);
 
-            if (loaded_assemblies.Values.Any(t => t.Namespace == filename))
+            if (loadedAssemblies.Values.Any(t => t.Namespace == filename))
                 return;
 
             try
@@ -158,19 +150,30 @@ namespace osu.Game.Rulesets
             }
         }
 
-        private static void addRuleset(Assembly assembly)
+        private void addRuleset(Assembly assembly)
         {
-            if (loaded_assemblies.ContainsKey(assembly))
+            if (loadedAssemblies.ContainsKey(assembly))
                 return;
 
             try
             {
-                loaded_assemblies[assembly] = assembly.GetTypes().First(t => t.IsPublic && t.IsSubclassOf(typeof(Ruleset)));
+                loadedAssemblies[assembly] = assembly.GetTypes().First(t => t.IsPublic && t.IsSubclassOf(typeof(Ruleset)));
             }
             catch (Exception e)
             {
                 Logger.Error(e, $"Failed to add ruleset {assembly}");
             }
         }
+
+        public void Dispose()
+        {
+            Dispose(true);
+            GC.SuppressFinalize(this);
+        }
+
+        protected virtual void Dispose(bool disposing)
+        {
+            AppDomain.CurrentDomain.AssemblyResolve -= resolveRulesetAssembly;
+        }
     }
 }