Paper/Spigot-Server-Patches/0237-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 08141147f9795546e9397abed95834ed5e69a126..d9e5d71a87140c90b79902887bd2f481f02956dc 100644
--- a/src/main/java/net/minecraft/server/EntityHuman.java
+++ b/src/main/java/net/minecraft/server/EntityHuman.java
@@ -155,7 +155,7 @@ public abstract class EntityHuman extends EntityLiving {
         this.es();
         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;
         }
 
@@ -350,6 +350,13 @@ 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 6414ff3ca7e5f217268f7114f7ac751532444af6..8a9a287074f2e91488f91ec9d8a7687c92f72099 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -411,7 +411,7 @@ 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;
         }
 
@@ -585,7 +585,7 @@ 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();
@@ -1166,7 +1166,7 @@ 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();
@@ -1226,7 +1226,7 @@ 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
@@ -1290,7 +1290,12 @@ 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.o();
     }
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index 351eeb83d8a28b19e3805f0d8a377f4ed060c592..027f9a86f458aab7d94f132981a9c700a0afea57 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -2080,7 +2080,7 @@ 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.o();
     }
diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
index edb59cf7dc797384bba9d37f486b624753d4f31c..509451c73892147419ef4cf23b449c61d21cf279 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -420,7 +420,7 @@ 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
-        entityplayer.closeInventory();
+        entityplayer.closeInventory(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 0c677b8e1b1a103c7d727dba19fff1f74b7ed382..8a42f9ed3e1579b8b034de9321e5545505298d6b 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -967,7 +967,7 @@ public class WorldServer extends World implements GeneratorAccessSeed {
         for (TileEntity tileentity : chunk.getTileEntities().values()) {
             if (tileentity instanceof IInventory) {
                 for (org.bukkit.entity.HumanEntity h : Lists.newArrayList(((IInventory) tileentity).getViewers())) {
-                    h.closeInventory();
+                    h.closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED); // Paper
                 }
             }
         }
@@ -1025,7 +1025,7 @@ public class WorldServer extends World implements GeneratorAccessSeed {
         // Spigot Start
         if (entity.getBukkitEntity() instanceof org.bukkit.inventory.InventoryHolder) {
             for (org.bukkit.entity.HumanEntity h : Lists.newArrayList(((org.bukkit.inventory.InventoryHolder) entity.getBukkitEntity()).getInventory().getViewers())) {
-                h.closeInventory();
+                h.closeInventory(org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNLOADED); // Paper
             }
         }
         // Spigot End
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
index 27b2ee740a705238995dd3bcea62b4bf74ec82dc..f6209e9c0b9e0ab99693025d23847bc62a06225d 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
@@ -435,8 +435,13 @@ 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 b5d2ce40431247112baaded01e860c1832bf8fd8..bb6635be243a270752e1c47a9646a13ea6707baf 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -789,7 +789,7 @@ 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 78475dd2c0f6cca94586536f12323d8080e05623..ec079f7d04f17cc82bd65aec5abfe269bbfb6922 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -1319,12 +1319,22 @@ 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) {
+        handleInventoryCloseEvent(human, org.bukkit.event.inventory.InventoryCloseEvent.Reason.UNKNOWN);
+    }
+    public static void handleInventoryCloseEvent(EntityHuman human, org.bukkit.event.inventory.InventoryCloseEvent.Reason reason) {
+        // Paper end
         // SPIGOT-5799 - no need to fire for when no inventory open
         if (human.activeContainer == human.defaultContainer) {
             return;
         }
-        InventoryCloseEvent event = new InventoryCloseEvent(human.activeContainer.getBukkitView());
+        InventoryCloseEvent event = new InventoryCloseEvent(human.activeContainer.getBukkitView(), reason); // Paper
         human.world.getServer().getPluginManager().callEvent(event);
         human.activeContainer.transferTo(human.defaultContainer, human.getBukkitEntity());
     }