From 9f44f940e57691d5a78af9f69433cb0b107103bf Mon Sep 17 00:00:00 2001
From: NichtStudioCode <51272202+NichtStudioCode@users.noreply.github.com>
Date: Sat, 25 Mar 2023 22:36:35 +0100
Subject: [PATCH] Window#getPlayerItems

---
 .../xenondevs/invui/window/AbstractDoubleWindow.java  |  8 ++++++++
 .../xenondevs/invui/window/AbstractSingleWindow.java  | 11 +++++++++++
 .../main/java/xyz/xenondevs/invui/window/Window.java  | 11 +++++++++++
 3 files changed, 30 insertions(+)

diff --git a/invui/src/main/java/xyz/xenondevs/invui/window/AbstractDoubleWindow.java b/invui/src/main/java/xyz/xenondevs/invui/window/AbstractDoubleWindow.java
index 0b938a0..4fc99bb 100644
--- a/invui/src/main/java/xyz/xenondevs/invui/window/AbstractDoubleWindow.java
+++ b/invui/src/main/java/xyz/xenondevs/invui/window/AbstractDoubleWindow.java
@@ -5,6 +5,7 @@ import org.bukkit.event.entity.PlayerDeathEvent;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.Nullable;
 import xyz.xenondevs.inventoryaccess.InventoryAccess;
 import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
 import xyz.xenondevs.invui.gui.AbstractGui;
@@ -53,6 +54,13 @@ public abstract class AbstractDoubleWindow extends AbstractWindow {
         }
     }
     
+    @Override
+    public @Nullable ItemStack @Nullable [] getPlayerItems() {
+        if (isOpen())
+            return playerItems;
+        return null;
+    }
+    
     private void restorePlayerInventory() {
         Inventory inventory = getViewer().getInventory();
         for (int i = 0; i < 36; i++) {
diff --git a/invui/src/main/java/xyz/xenondevs/invui/window/AbstractSingleWindow.java b/invui/src/main/java/xyz/xenondevs/invui/window/AbstractSingleWindow.java
index 13509d2..73a8ce2 100644
--- a/invui/src/main/java/xyz/xenondevs/invui/window/AbstractSingleWindow.java
+++ b/invui/src/main/java/xyz/xenondevs/invui/window/AbstractSingleWindow.java
@@ -6,6 +6,7 @@ import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.ItemStack;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import xyz.xenondevs.inventoryaccess.component.ComponentWrapper;
 import xyz.xenondevs.invui.gui.AbstractGui;
 import xyz.xenondevs.invui.gui.Gui;
@@ -108,6 +109,16 @@ public abstract class AbstractSingleWindow extends AbstractWindow {
         return gui;
     }
     
+    @Override
+    public @Nullable ItemStack @Nullable [] getPlayerItems() {
+        Player viewer = getCurrentViewer();
+        if (viewer != null) {
+            return viewer.getInventory().getContents();
+        }
+        
+        return null;
+    }
+    
     @SuppressWarnings("unchecked")
     public abstract static class AbstractBuilder<W extends Window, S extends Builder.Single<W, S>>
         extends AbstractWindow.AbstractBuilder<W, S>
diff --git a/invui/src/main/java/xyz/xenondevs/invui/window/Window.java b/invui/src/main/java/xyz/xenondevs/invui/window/Window.java
index edf7fcd..e468b0e 100644
--- a/invui/src/main/java/xyz/xenondevs/invui/window/Window.java
+++ b/invui/src/main/java/xyz/xenondevs/invui/window/Window.java
@@ -4,6 +4,7 @@ import net.md_5.bungee.api.chat.BaseComponent;
 import org.bukkit.entity.Player;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
 import org.jetbrains.annotations.Contract;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -162,6 +163,16 @@ public interface Window {
      */
     @NotNull UUID getViewerUUID();
     
+    /**
+     * Gets the contents of the {@link Window#getCurrentViewer() viewer's} inventory.
+     * This method will always return the actual inventory contents and will not be affected by double windows placing
+     * gui items in the {@link Player's} inventory.
+     * 
+     * @return The contents of the {@link Window#getCurrentViewer() viewer's} inventory,
+     * or null if the {@link Window} {@link Window#isOpen() isn't open}.
+     */
+    @Nullable ItemStack @Nullable[] getPlayerItems();
+    
     /**
      * Replaces the currently registered open handlers with the given list.
      *