Fix BlueprintContainer eating input from skin editor buttons

osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs

@@ -108,13 +108,6 @@ namespace osu.Game.Screens.Edit.Compose.Components
         /// </summary>
         protected virtual bool AllowDeselectionDuringDrag => true;
 
-        /// <remarks>
-        /// Positional input must be received outside the container's bounds,
-        /// in order to handle blueprints which are partially offscreen.
-        /// </remarks>
-        /// <seealso cref="SelectionHandler{T}.ReceivePositionalInputAt"/>
-        public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => true;
-
         protected override bool OnMouseDown(MouseDownEvent e)
         {
             bool selectionPerformed = performMouseDownActions(e);

osu.Game/Screens/Edit/Compose/Components/ComposeBlueprintContainer.cs

@@ -39,6 +39,12 @@ namespace osu.Game.Screens.Edit.Compose.Components
         private PlacementBlueprint currentPlacement;
         private InputManager inputManager;
 
+        /// <remarks>
+        /// Positional input must be received outside the container's bounds,
+        /// in order to handle composer blueprints which are partially offscreen.
+        /// </remarks>
+        public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => true;
+
         public ComposeBlueprintContainer(HitObjectComposer composer)
             : base(composer)
         {

osu.Game/Screens/Edit/Compose/Components/SelectionHandler.cs

@@ -21,6 +21,7 @@ using osu.Game.Graphics.UserInterface;
 using osu.Game.Input.Bindings;
 using osu.Game.Resources.Localisation.Web;
 using osu.Game.Rulesets.Edit;
+using osu.Game.Screens.Edit.Compose.Components.Timeline;
 using osuTK;
 using osuTK.Input;
 
@@ -103,7 +104,8 @@ namespace osu.Game.Screens.Edit.Compose.Components
         /// Positional input must be received outside the container's bounds,
         /// in order to handle blueprints which are partially offscreen.
         /// </remarks>
-        /// <seealso cref="BlueprintContainer{T}.ReceivePositionalInputAt"/>
+        /// <seealso cref="ComposeBlueprintContainer.ReceivePositionalInputAt"/>
+        /// <seealso cref="TimelineBlueprintContainer.ReceivePositionalInputAt"/>
         public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => true;
 
         /// <summary>

osu.Game/Screens/Edit/Compose/Components/Timeline/TimelineBlueprintContainer.cs

@@ -35,6 +35,12 @@ namespace osu.Game.Screens.Edit.Compose.Components.Timeline
         private Bindable<HitObject> placement;
         private SelectionBlueprint<HitObject> placementBlueprint;
 
+        /// <remarks>
+        /// Positional input must be received outside the container's bounds,
+        /// in order to handle timeline blueprints which are stacked offscreen.
+        /// </remarks>
+        public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => timeline.ReceivePositionalInputAt(screenSpacePos);
+
         public TimelineBlueprintContainer(HitObjectComposer composer)
             : base(composer)
         {