Paper/Spigot-Server-Patches/0239-InventoryCloseEvent-Reason-API.patch

From 0000000000000000000000000000000000000000 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 6e9dd4d3717567f54ac706715d75bf53d48c5f7d..684978be7ccc401b71b0594828a7783b209a5210 100644
--- a/src/main/java/net/minecraft/server/EntityHuman.java
+++ b/src/main/java/net/minecraft/server/EntityHuman.java
@@ -164,7 +164,7 @@ public abstract class EntityHuman extends EntityLiving {
         this.dW();
         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;
         }
 
@@ -363,6 +363,13 @@ 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 88692d9eaea57a4d172d537a6cf2a3bffe058d54..f35d23340665ab323732915efc0c0ad7fe4d964d 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -368,7 +368,7 @@ 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;
         }
 
@@ -542,7 +542,7 @@ 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();
@@ -1057,7 +1057,7 @@ 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();
@@ -1117,7 +1117,7 @@ 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
@@ -1181,7 +1181,12 @@ 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 4a0a8479448b5872f356379d6f68d9142d85e175..8eb12e89ea84051281149d96ca82905bc4366ba4 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -2040,7 +2040,7 @@ 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 a61815c794885d7192eec62d05a54e765fb8c838..5ae0927c14a1915b85c13c13c8cf3e6b3dddfe9d 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -390,7 +390,7 @@ 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 60f936f2e50aaf3a894f3fd92c7619263cf27878..7c1a748c9b6982e09626cba60651a6de6a5796d4 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -1050,7 +1050,7 @@ 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
                     }
                 }
             }
@@ -1073,7 +1073,7 @@ 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 20f0783025516048851aedef0a70759c2953ae47..a6d75c0e07a25fdb59dde2e3eb2a0213c7112515 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
@@ -467,8 +467,13 @@ 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 c69b3b33d82bac830ea55d30961017339af6aa7e..ffbf2b983bb91c873f403b411a05c563feffeebf 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -785,7 +785,7 @@ 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 3a897cf5903539e1099f1a9ec98f1e157437fee0..6ca6ba46d0dd511072f518baa3aae6dc8281ef66 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -1301,8 +1301,19 @@ 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());
     }