From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: by77er <by77er@gmail.com>
Date: Mon, 12 Jun 2023 12:56:46 -0400
Subject: [PATCH] Add event for player editing sign


diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
index ae9b821d71d2868ba4eb3c73558fdcd6caf264e3..86304357ca687036cf2448f8cd7c639bdc309e25 100644
--- a/src/main/java/net/minecraft/world/item/ItemStack.java
+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
@@ -493,7 +493,7 @@ public final class ItemStack {
                         try {
                             if (world.getBlockEntity(SignItem.openSign) instanceof SignBlockEntity tileentitysign) {
                                 if (world.getBlockState(SignItem.openSign).getBlock() instanceof SignBlock blocksign) {
-                                    blocksign.openTextEdit(entityhuman, tileentitysign, true);
+                                    blocksign.openTextEdit(entityhuman, tileentitysign, true, io.papermc.paper.event.player.PlayerOpenSignEvent.Cause.PLACE); // Paper
                                 }
                             }
                         } finally {
diff --git a/src/main/java/net/minecraft/world/level/block/SignBlock.java b/src/main/java/net/minecraft/world/level/block/SignBlock.java
index 5ab7df0042391cb621ed78a187dc20333e344186..1bc8fbb66c43e9844c66bce26cd349d7fcbc4cfe 100644
--- a/src/main/java/net/minecraft/world/level/block/SignBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/SignBlock.java
@@ -97,7 +97,7 @@ public abstract class SignBlock extends BaseEntityBlock implements SimpleWaterlo
                 } else if (bl3) {
                     return InteractionResult.SUCCESS;
                 } else if (!this.otherPlayerIsEditingSign(player, signBlockEntity) && player.mayBuild() && this.hasEditableText(player, signBlockEntity, bl2)) {
-                    this.openTextEdit(player, signBlockEntity, bl2);
+                    this.openTextEdit(player, signBlockEntity, bl2, io.papermc.paper.event.player.PlayerOpenSignEvent.Cause.INTERACT); // Paper
                     return InteractionResult.SUCCESS;
                 } else {
                     return InteractionResult.PASS;
@@ -143,7 +143,22 @@ public abstract class SignBlock extends BaseEntityBlock implements SimpleWaterlo
         return woodType;
     }
 
+    @io.papermc.paper.annotation.DoNotUse @Deprecated // Paper
     public void openTextEdit(Player player, SignBlockEntity blockEntity, boolean front) {
+        // Paper start
+        this.openTextEdit(player, blockEntity, front, io.papermc.paper.event.player.PlayerOpenSignEvent.Cause.UNKNOWN);
+    }
+    public void openTextEdit(Player player, SignBlockEntity blockEntity, boolean front, io.papermc.paper.event.player.PlayerOpenSignEvent.Cause cause) {
+        org.bukkit.entity.Player bukkitPlayer = (org.bukkit.entity.Player) player.getBukkitEntity();
+        org.bukkit.block.Block bukkitBlock = org.bukkit.craftbukkit.block.CraftBlock.at(blockEntity.getLevel(), blockEntity.getBlockPos());
+        org.bukkit.craftbukkit.block.CraftSign<?> bukkitSign = (org.bukkit.craftbukkit.block.CraftSign<?>) org.bukkit.craftbukkit.block.CraftBlockStates.getBlockState(bukkitBlock);
+        io.papermc.paper.event.player.PlayerOpenSignEvent event = new io.papermc.paper.event.player.PlayerOpenSignEvent(
+            bukkitPlayer,
+            bukkitSign,
+            front ? org.bukkit.block.sign.Side.FRONT : org.bukkit.block.sign.Side.BACK,
+            cause);
+        if (!event.callEvent()) return;
+        // Paper end
         blockEntity.setAllowedPlayerEditor(player.getUUID());
         player.openTextEdit(blockEntity, front);
     }
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java b/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java
index f48b5204e59ab0c840fc08ecb9abf5facbae9be1..ed29fd2271585a100c1933b787005e9be54bd715 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java
@@ -128,6 +128,10 @@ public class CraftSign<T extends SignBlockEntity> extends CraftBlockEntityState<
 
         SignBlockEntity handle = ((CraftSign<?>) sign).getTileEntity();
 
+        // Paper start
+        io.papermc.paper.event.player.PlayerOpenSignEvent event = new io.papermc.paper.event.player.PlayerOpenSignEvent((Player) player, sign, side, io.papermc.paper.event.player.PlayerOpenSignEvent.Cause.PLUGIN);
+        if (!event.callEvent()) return;
+        // Paper end
         handle.setAllowedPlayerEditor(player.getUniqueId()); // Paper
         ((org.bukkit.craftbukkit.entity.CraftHumanEntity) player).getHandle().openTextEdit(handle, Side.FRONT == side); // Paper - change move open sign to HumanEntity
     }