Implement CommentsPage class

osu.Game/Overlays/Comments/CommentsPage.cs

@@ -0,0 +1,76 @@
+// 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.Framework.Graphics;
+using osu.Framework.Bindables;
+using osu.Game.Online.API.Requests.Responses;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics.Sprites;
+using System.Linq;
+
+namespace osu.Game.Overlays.Comments
+{
+    public class CommentsPage : FillFlowContainer
+    {
+        public readonly BindableBool ShowDeleted = new BindableBool();
+
+        private readonly CommentBundle commentBundle;
+
+        public CommentsPage(CommentBundle commentBundle)
+        {
+            this.commentBundle = commentBundle;
+        }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            RelativeSizeAxes = Axes.X;
+            AutoSizeAxes = Axes.Y;
+            Direction = FillDirection.Vertical;
+
+            if (!commentBundle.Comments.Any())
+            {
+                Add(new NoCommentsPlaceholder());
+                return;
+            }
+
+            foreach (var c in commentBundle.Comments)
+            {
+                if (c.IsTopLevel)
+                {
+                    Add(new DrawableComment(c)
+                    {
+                        ShowDeleted = { BindTarget = ShowDeleted }
+                    });
+                }
+            }
+        }
+
+        private class NoCommentsPlaceholder : CompositeDrawable
+        {
+            [BackgroundDependencyLoader]
+            private void load(OverlayColourProvider colourProvider)
+            {
+                Height = 80;
+                RelativeSizeAxes = Axes.X;
+                AddRangeInternal(new Drawable[]
+                {
+                    new Box
+                    {
+                        RelativeSizeAxes = Axes.Both,
+                        Colour = colourProvider.Background4
+                    },
+                    new OsuSpriteText
+                    {
+                        Anchor = Anchor.CentreLeft,
+                        Origin = Anchor.CentreLeft,
+                        Margin = new MarginPadding { Left = 50 },
+                        Text = @"No comments yet."
+                    }
+                });
+            }
+        }
+    }
+}