From d42c242947e6aa87ebf3cfeab4fb216b646cc0c7 Mon Sep 17 00:00:00 2001
From: NichtStudioCode <51272202+NichtStudioCode@users.noreply.github.com>
Date: Tue, 11 May 2021 19:03:07 +0200
Subject: [PATCH] GUI#closeForAllViewers

---
 src/main/java/de/studiocode/invui/gui/GUI.java         | 10 ++++++++++
 .../java/de/studiocode/invui/gui/impl/IndexedGUI.java  |  5 +++++
 2 files changed, 15 insertions(+)

diff --git a/src/main/java/de/studiocode/invui/gui/GUI.java b/src/main/java/de/studiocode/invui/gui/GUI.java
index 0a738c3..43b5b72 100644
--- a/src/main/java/de/studiocode/invui/gui/GUI.java
+++ b/src/main/java/de/studiocode/invui/gui/GUI.java
@@ -12,6 +12,7 @@ import de.studiocode.invui.window.Window;
 import org.bukkit.entity.Player;
 import org.bukkit.event.inventory.ClickType;
 import org.bukkit.event.inventory.InventoryClickEvent;
+import org.bukkit.event.inventory.InventoryCloseEvent;
 import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.ItemStack;
 import org.jetbrains.annotations.NotNull;
@@ -267,6 +268,15 @@ public interface GUI extends GUIParent {
      */
     Set<Player> findAllCurrentViewers();
     
+    /**
+     * Closes the open {@link Inventory} for all viewers of {@link Window}s
+     * where this {@link GUI} is displayed.
+     * Does not actually call the {@link Window#close(boolean)} method, which will
+     * be indirectly invoked by the {@link InventoryCloseEvent} if the {@link Window}
+     * is set to close on that event.
+     */
+    void closeForAllViewers();
+    
     /**
      * Plays an {@link Animation}.
      *
diff --git a/src/main/java/de/studiocode/invui/gui/impl/IndexedGUI.java b/src/main/java/de/studiocode/invui/gui/impl/IndexedGUI.java
index 333af8a..74da14e 100644
--- a/src/main/java/de/studiocode/invui/gui/impl/IndexedGUI.java
+++ b/src/main/java/de/studiocode/invui/gui/impl/IndexedGUI.java
@@ -288,6 +288,11 @@ abstract class IndexedGUI implements GUI {
             .collect(Collectors.toSet());
     }
     
+    @Override
+    public void closeForAllViewers() {
+        findAllCurrentViewers().forEach(Player::closeInventory);
+    }
+    
     @Override
     public void playAnimation(@NotNull Animation animation, @Nullable Predicate<SlotElement> filter) {
         if (animation != null) cancelAnimation();