add buy item when dragging from shop to inventory

Author: WeylonSantana

Intersect.Client.Core/Interface/Game/Draggable.cs

@@ -6,8 +6,6 @@ namespace Intersect.Client.Interface.Game;
 
 public partial class Draggable(Base parent, string name) : ImagePanel(parent, name)
 {
-    public bool DisableDragAndDrop { get; set; } = false;
-
     public bool IsDragging => DragAndDrop.CurrentPackage?.DrawControl == this;
 
     public override bool DragAndDrop_Draggable()
@@ -17,11 +15,6 @@ public override bool DragAndDrop_Draggable()
 
     public override Package DragAndDrop_GetPackage(int x, int y)
     {
-        if (DisableDragAndDrop)
-        {
-            return null;
-        }
-
         return new Package()
         {
             IsDraggable = true,

Intersect.Client.Core/Interface/Game/Shop/ShopItem.cs

@@ -2,10 +2,12 @@
 using Intersect.Client.Framework.File_Management;
 using Intersect.Client.Framework.Gwen.Control;
 using Intersect.Client.Framework.Gwen.Control.EventArguments;
+using Intersect.Client.Framework.Gwen.DragDrop;
 using Intersect.Client.Framework.Gwen.Input;
 using Intersect.Client.Framework.Input;
 using Intersect.Client.General;
 using Intersect.Client.Interface.Game.DescriptionWindows;
+using Intersect.Client.Interface.Game.Inventory;
 using Intersect.Client.Localization;
 using Intersect.Configuration;
 using Intersect.Framework.Core.GameObjects.Items;
@@ -30,7 +32,6 @@ public ShopItem(ShopWindow shopWindow, Base parent, int index, ContextMenu conte
         Icon.HoverLeave += Icon_HoverLeave;
         Icon.Clicked += Icon_RightClicked;
         Icon.DoubleClicked += Icon_DoubleClicked;
-        Icon.DisableDragAndDrop = true;
 
         LoadJsonUi(GameContentManager.UI.InGame, Graphics.Renderer.GetResolutionString());
 
@@ -161,4 +162,25 @@ public void LoadItem()
             Icon.RenderColor = itemDescriptor.Color;
         }
     }
+
+    public override bool DragAndDrop_HandleDrop(Package p, int x, int y)
+    {
+        var targetNode = Interface.FindComponentUnderCursor();
+
+        // Find the first parent acceptable in that tree that can accept the package
+        while (targetNode != default)
+        {
+            if (targetNode is not InventoryWindow)
+            {
+                targetNode = targetNode.Parent;
+                continue;
+            }
+
+            Globals.Me?.TryBuyItem(_mySlot);
+            return true;
+        }
+
+        // If we've reached the top of the tree, we can't drop here, so cancel drop
+        return false;
+    }
 }