Merge pull request #1 from BillyGalbreath/main

Thanks Billy for the smart implementation and technique. I shall learn from this.
Boom.

Author: Peashooter101

src/main/java/adhdmc/invisibleframes/ClickListener.java

@@ -1,7 +1,5 @@
 package adhdmc.invisibleframes;
 
-import dev.lone.itemsadder.api.CustomStack;
-import dev.lone.itemsadder.api.ItemsAdder;
 import org.bukkit.Material;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.entity.Entity;
@@ -13,7 +11,7 @@
 import org.bukkit.event.player.PlayerInteractEntityEvent;
 import org.bukkit.inventory.EquipmentSlot;
 
-public class  ClickListener implements Listener {
+public class ClickListener implements Listener {
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
     public void onItemFrameInteract(PlayerInteractEntityEvent event) {
@@ -26,7 +24,7 @@ public void onItemFrameInteract(PlayerInteractEntityEvent event) {
         Entity entity = event.getRightClicked();
         if (!(entity instanceof ItemFrame itemFrame)) return;
         if (itemFrame.getItem().getType().equals(Material.AIR) && !config.getBoolean("toggle-empty", false)) return;
-        if (InvisibleFrames.hasItemsAdder() && CustomStack.byItemStack(itemFrame.getItem()) != null) return;
+        if (InvisibleFrames.getInstance().getItemsAdder().isCustomStack(itemFrame.getItem())) return;
         if (!player.hasPermission("invisibleframes.toggleframes")) return;
 
         event.setCancelled(true);

src/main/java/adhdmc/invisibleframes/InvisibleFrames.java

@@ -1,11 +1,11 @@
 package adhdmc.invisibleframes;
 
+import adhdmc.invisibleframes.hooks.ItemsAdder;
 import org.bukkit.plugin.java.JavaPlugin;
 
 public final class InvisibleFrames extends JavaPlugin {
-
     private static InvisibleFrames instance;
-    private static boolean hasItemsAdder;
+    private ItemsAdder itemsAdder;
 
     @Override
     public void onEnable() {
@@ -15,17 +15,20 @@ public void onEnable() {
         getConfig().addDefault("lock-frame", true);
         getConfig().addDefault("toggle-empty", false);
         instance = this;
-        hasItemsAdder = false;
         try {
             Class.forName("dev.lone.itemsadder.api.CustomBlock");
-            hasItemsAdder = true;
+            this.itemsAdder = new ItemsAdder.Impl();
         } catch (ClassNotFoundException e) {
             this.getLogger().info("ItemsAdder API has not been found, ItemsAdder checks are disabled.");
+            this.itemsAdder = new ItemsAdder.Noop();
         }
     }
 
     public static InvisibleFrames getInstance() {
         return instance;
     }
-    public static boolean hasItemsAdder() { return hasItemsAdder; }
+
+    public ItemsAdder getItemsAdder() {
+        return this.itemsAdder;
+    }
 }

src/main/java/adhdmc/invisibleframes/hooks/ItemsAdder.java

@@ -0,0 +1,21 @@
+package adhdmc.invisibleframes.hooks;
+
+import org.bukkit.inventory.ItemStack;
+
+public interface ItemsAdder {
+    boolean isCustomStack(ItemStack stack);
+
+    class Impl implements ItemsAdder {
+        @Override
+        public boolean isCustomStack(ItemStack stack) {
+            return dev.lone.itemsadder.api.CustomStack.byItemStack(stack) != null;
+        }
+    }
+
+    class Noop implements ItemsAdder {
+        @Override
+        public boolean isCustomStack(ItemStack stack) {
+            return false;
+        }
+    }
+}