✨ Add preClose method to IMenu for handling actions before canvas data is erased

Author: MarcusSlover

src/main/java/com/marcusslover/plus/lib/item/IMenu.java

@@ -17,7 +17,17 @@ public interface IMenu extends ISendable<IMenu> {
     void open(@NotNull Canvas ctx, @NotNull Player player);
 
     /**
-     * Called when the menu is closed.
+     * Called right before the canvas data is erased. You may use the menuUpdateContext here.
+     *
+     * @param ctx    the canvas
+     * @param player the player
+     */
+    default void preClose(@NotNull Canvas ctx, @NotNull Player player) {
+        // nothing here
+    }
+
+    /**
+     * Called when the menu is closed. At this point using menuUpdateContext is not possible.
      *
      * @param ctx    the canvas
      * @param player the player

src/main/java/com/marcusslover/plus/lib/item/MenuManager.java

@@ -73,6 +73,7 @@ public void onClose(InventoryCloseEvent event) {
         }
 
         Menu menu = canvas.assosiatedMenu();
+        menu.preClose(canvas, player); // call the preClose method so developers can handle it
         Canvas remove = menu.canvasMap().remove(player.getUniqueId());
         if (remove != null) {
             remove.clear(); // help the gc