Add a collection management dialog

osu.Game/Collections/DeleteCollectionDialog.cs

@@ -0,0 +1,36 @@
+// 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.Sprites;
+using osu.Game.Overlays.Dialog;
+
+namespace osu.Game.Collections
+{
+    public class DeleteCollectionDialog : PopupDialog
+    {
+        [Resolved]
+        private CollectionManager collectionManager { get; set; }
+
+        public DeleteCollectionDialog(BeatmapCollection collection)
+        {
+            HeaderText = "Confirm deletion of";
+            BodyText = collection.Name;
+
+            Icon = FontAwesome.Regular.TrashAlt;
+
+            Buttons = new PopupDialogButton[]
+            {
+                new PopupDialogOkButton
+                {
+                    Text = @"Yes. Go for it.",
+                    Action = () => collectionManager.Collections.Remove(collection)
+                },
+                new PopupDialogCancelButton
+                {
+                    Text = @"No! Abort mission!",
+                },
+            };
+        }
+    }
+}