PaperMC/Spigot-Server-Patches/0409-Fix-PlayerEditBookEvent.patch
Shane Freeder 0976d52bbd Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Please note that this build includes changes to meet upstreams
requirements for nullability annotations. While we aim for a level of
accuracy, these might not be 100% correct, if there are any issues,
please speak to us on discord, or open an issue on the tracker to
discuss.

Bukkit Changes:
9a6a1de3 Remove nullability annotations from enum constructors
3f0591ea SPIGOT-2540: Add nullability annotations to entire Bukkit API

CraftBukkit Changes:
8d8475fc SPIGOT-4666: Force parameter in HumanEntity#sleep
8b1588e2 Fix ExplosionPrimeEvent#setFire not working with EnderCrystals
39a287b7 Don't ignore newlines in PlayerListHeader/Footer

Spigot Changes:
cf694d87 Add nullability annotations
2019-03-20 00:31:18 +00:00

35 lines
2 KiB
Diff

From ac58c1ed400f8cb8d0dc74074eb068e200d6cbe8 Mon Sep 17 00:00:00 2001
From: Michael Himing <mhiming@gmail.com>
Date: Sun, 16 Dec 2018 13:07:33 +1100
Subject: [PATCH] Fix PlayerEditBookEvent
- Updating book writing (not signing) mutated the original item, making
it impossible to properly cancel the event or modify the book meta
- When the event was cancelled, the client's book would keep the
cancelled writing
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index 391ecc9db..04344a371 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -823,10 +823,13 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
this.player.setSlot(enumitemslot, CraftEventFactory.handleEditBookEvent(player, enumitemslot, itemstack1, itemstack2)); // CraftBukkit
} else {
- ItemStack old = itemstack1.cloneItemStack(); // CraftBukkit
- itemstack1.a("pages", (NBTBase) itemstack.getTag().getList("pages", 8));
- CraftEventFactory.handleEditBookEvent(player, enumitemslot, old, itemstack1); // CraftBukkit
+ // Paper start - dont mutate players current item, set it from the event
+ ItemStack newBook = itemstack1.cloneItemStack();
+ newBook.getOrCreateTagAndSet("pages", (NBTBase) itemstack.getTag().getList("pages", 8));
+ this.player.setSlot(enumitemslot, CraftEventFactory.handleEditBookEvent(player, enumitemslot, itemstack1, newBook));
+ // Paper end
}
+ player.getBukkitEntity().updateInventory(); // Paper - fix client desync when event is cancelled
}
}
--
2.21.0