Paper/Spigot-Server-Patches/0246-InventoryCloseEvent-Reason-API.patch

From 16c8e2016bc73e782153dc7eb1dfcc8f3cdc6376 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 3 Jul 2018 21:56:23 -0400
Subject: [PATCH] InventoryCloseEvent Reason API

Allows you to determine why an inventory was closed, enabling plugin developers
to "confirm" things based on if it was player triggered close or not.

diff --git a/src/main/java/net/minecraft/server/EntityHuman.java b/src/main/java/net/minecraft/server/EntityHuman.java
index ed1ba110c..8b0094d1d 100644
--- a/src/main/java/net/minecraft/server/EntityHuman.java
+++ b/src/main/java/net/minecraft/server/EntityHuman.java
@@ -149,7 +149,7 @@ public abstract class EntityHuman extends EntityLiving {
         this.dB();
         super.tick();
         if (!this.world.isClientSide && this.activeContainer != null && !this.activeContainer.canUse(this)) {
-            this.closeInventory();
+            this.closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.CANT_USE); // Paper
             this.activeContainer = this.defaultContainer;
         }
 
@@ -336,6 +336,13 @@ public abstract class EntityHuman extends EntityLiving {
         return 20;
     }
 
+    // Paper start - unused code, but to keep signatures aligned
+    public void closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason reason) {
+        closeInventory();
+        this.activeContainer = this.defaultContainer;
+    }
+    // Paper end
+
     public void closeInventory() {
         this.activeContainer = this.defaultContainer;
     }
diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
index 18c71640f..2ce606322 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -362,7 +362,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
         }
         // Paper end
         if (!this.world.isClientSide && !this.activeContainer.canUse(this)) {
-            this.closeInventory();
+            this.closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.CANT_USE); // Paper
             this.activeContainer = this.defaultContainer;
         }
 
@@ -536,7 +536,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
 
         // SPIGOT-943 - only call if they have an inventory open
         if (this.activeContainer != this.defaultContainer) {
-            this.closeInventory();
+            this.closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.DEATH); // Paper
         }
 
         String deathMessage = event.getDeathMessage();
@@ -1058,7 +1058,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
             return OptionalInt.empty();
         } else {
             if (this.activeContainer != this.defaultContainer) {
-                this.closeInventory();
+                this.closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.OPEN_NEW); // Paper
             }
 
             this.nextContainerCounter();
@@ -1111,7 +1111,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
         }
         // CraftBukkit end
         if (this.activeContainer != this.defaultContainer) {
-            this.closeInventory();
+            this.closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.OPEN_NEW); // Paper
         }
 
         // this.nextContainerCounter(); // CraftBukkit - moved up
@@ -1175,7 +1175,12 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
 
     @Override
     public void closeInventory() {
-        CraftEventFactory.handleInventoryCloseEvent(this); // CraftBukkit
+        // Paper start
+        closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNKNOWN);
+    }
+    public void closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason reason) {
+        CraftEventFactory.handleInventoryCloseEvent(this, reason); // CraftBukkit
+        // Paper end
         this.playerConnection.sendPacket(new PacketPlayOutCloseWindow(this.activeContainer.windowId));
         this.m();
     }
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index e6b8b68f1..c315a5648 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -2062,7 +2062,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
         PlayerConnectionUtils.ensureMainThread(packetplayinclosewindow, this, this.player.getWorldServer());
 
         if (this.player.isFrozen()) return; // CraftBukkit
-        CraftEventFactory.handleInventoryCloseEvent(this.player); // CraftBukkit
+        CraftEventFactory.handleInventoryCloseEvent(this.player, org.bukkit.event.inventory.InventoryCloseEvent.Reason.PLAYER); // CraftBukkit // Paper
 
         this.player.m();
     }
diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
index a167843bf..9e5cd22d7 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -402,7 +402,7 @@ public abstract class PlayerList {
         entityplayer.a(StatisticList.LEAVE_GAME);
 
         // CraftBukkit start - Quitting must be before we do final save of data, in case plugins need to modify it
-        org.bukkit.craftbukkit.event.CraftEventFactory.handleInventoryCloseEvent(entityplayer);
+        org.bukkit.craftbukkit.event.CraftEventFactory.handleInventoryCloseEvent(entityplayer, org.bukkit.event.inventory.InventoryCloseEvent.Reason.DISCONNECT); // Paper
 
         PlayerQuitEvent playerQuitEvent = new PlayerQuitEvent(cserver.getPlayer(entityplayer), "\u00A7e" + entityplayer.getName() + " left the game");
         cserver.getPluginManager().callEvent(playerQuitEvent);
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index 74939dce3..71e5dffb9 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -990,7 +990,7 @@ public class WorldServer extends World {
                 {
                     if ( h instanceof org.bukkit.craftbukkit.entity.CraftHumanEntity )
                     {
-                       ( (org.bukkit.craftbukkit.entity.CraftHumanEntity) h).getHandle().closeInventory();
+                       ( (org.bukkit.craftbukkit.entity.CraftHumanEntity) h).getHandle().closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED); // Paper
                     }
                 }
             }
@@ -1013,7 +1013,7 @@ public class WorldServer extends World {
                     {
                         if ( h instanceof org.bukkit.craftbukkit.entity.CraftHumanEntity )
                         {
-                           ( (org.bukkit.craftbukkit.entity.CraftHumanEntity) h).getHandle().closeInventory();
+                           ( (org.bukkit.craftbukkit.entity.CraftHumanEntity) h).getHandle().closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED); // Paper
                         }
                     }
                 }
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
index 6acb15043..cccc1be13 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
@@ -618,8 +618,13 @@ public class CraftHumanEntity extends CraftLivingEntity implements HumanEntity {
 
     @Override
     public void closeInventory() {
-        getHandle().closeInventory();
+        // Paper start
+        getHandle().closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.PLUGIN);
     }
+    public void closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason reason) {
+        getHandle().closeInventory(reason);
+    }
+    // Paper end
 
     @Override
     public boolean isBlocking() {
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 9ff2281c1..36f6766a6 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -781,7 +781,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
 
         // Close any foreign inventory
         if (getHandle().activeContainer != getHandle().defaultContainer) {
-            getHandle().closeInventory();
+            getHandle().closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.TELEPORT); // Paper
         }
 
         // Check if the fromWorld and toWorld are the same.
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 9de01e604..80b0fb8c1 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -1259,8 +1259,19 @@ public class CraftEventFactory {
         return event;
     }
 
+    // Paper start
+
+    /**
+     * Incase plugins hooked into this or Spigot adds a new inventory close event. Prefer to pass a reason
+     * @param human
+     */
+    @Deprecated
     public static void handleInventoryCloseEvent(EntityHuman human) {
-        InventoryCloseEvent event = new InventoryCloseEvent(human.activeContainer.getBukkitView());
+        handleInventoryCloseEvent(human, org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNKNOWN);
+    }
+    public static void handleInventoryCloseEvent(EntityHuman human, org.bukkit.event.inventory.InventoryCloseEvent.Reason reason) {
+        InventoryCloseEvent event = new InventoryCloseEvent(human.activeContainer.getBukkitView(), reason);
+        // Paper end
         human.world.getServer().getPluginManager().callEvent(event);
         human.activeContainer.transferTo(human.defaultContainer, human.getBukkitEntity());
     }
-- 
2.22.0