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 0d44469149ea1bd80bec6a45a104b63e41ac2d6b..b065b2997a0be453a9cba932bcba8320ce80c283 100644
--- a/src/main/java/net/minecraft/world/item/ItemStack.java
+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
@@ -545,7 +545,7 @@ public final class ItemStack implements DataComponentHolder {
                         try {
                             if (world.getBlockEntity(SignItem.openSign) instanceof SignBlockEntity tileentitysign) {
                                 if (world.getBlockState(SignItem.openSign).getBlock() instanceof SignBlock blocksign) {
-                                    blocksign.openTextEdit(entityhuman, tileentitysign, true, org.bukkit.event.player.PlayerSignOpenEvent.Cause.PLACE); // Craftbukkit
+                                    blocksign.openTextEdit(entityhuman, tileentitysign, true, io.papermc.paper.event.player.PlayerOpenSignEvent.Cause.PLACE); // Paper - Add PlayerOpenSignEvent
                                 }
                             }
                         } 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 e602c58bc14036d78a00ad548a821650b92e29df..f7bae8060d993176799ff3ff4653d760a137faba 100644
--- a/src/main/java/net/minecraft/world/level/block/SignBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/SignBlock.java
@@ -142,7 +142,7 @@ public abstract class SignBlock extends BaseEntityBlock implements SimpleWaterlo
             } else if (flag1) {
                 return InteractionResult.SUCCESS;
             } else if (!this.otherPlayerIsEditingSign(player, tileentitysign) && player.mayBuild() && this.hasEditableText(player, tileentitysign, flag)) {
-                this.openTextEdit(player, tileentitysign, flag, org.bukkit.event.player.PlayerSignOpenEvent.Cause.INTERACT); // CraftBukkit
+                this.openTextEdit(player, tileentitysign, flag, io.papermc.paper.event.player.PlayerOpenSignEvent.Cause.INTERACT); // Paper - Add PlayerOpenSignEvent
                 return InteractionResult.SUCCESS;
             } else {
                 return InteractionResult.PASS;
@@ -187,16 +187,33 @@ public abstract class SignBlock extends BaseEntityBlock implements SimpleWaterlo
         return blockpropertywood;
     }
 
+    @io.papermc.paper.annotation.DoNotUse @Deprecated // Paper - Add PlayerOpenSignEvent
     public void openTextEdit(Player player, SignBlockEntity blockEntity, boolean front) {
-        // Craftbukkit start
-        this.openTextEdit(player, blockEntity, front, org.bukkit.event.player.PlayerSignOpenEvent.Cause.UNKNOWN);
-    }
-
-    public void openTextEdit(Player entityhuman, SignBlockEntity tileentitysign, boolean flag, org.bukkit.event.player.PlayerSignOpenEvent.Cause cause) {
-        if (!org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerSignOpenEvent(entityhuman, tileentitysign, flag, cause)) {
+        // Paper start - Add PlayerOpenSignEvent
+        this.openTextEdit(player, blockEntity, front, io.papermc.paper.event.player.PlayerOpenSignEvent.Cause.UNKNOWN);
+    }
+    public void openTextEdit(Player entityhuman, SignBlockEntity tileentitysign, boolean flag, io.papermc.paper.event.player.PlayerOpenSignEvent.Cause cause) {
+        org.bukkit.entity.Player bukkitPlayer = (org.bukkit.entity.Player) entityhuman.getBukkitEntity();
+        org.bukkit.block.Block bukkitBlock = org.bukkit.craftbukkit.block.CraftBlock.at(tileentitysign.getLevel(), tileentitysign.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,
+            flag ? org.bukkit.block.sign.Side.FRONT : org.bukkit.block.sign.Side.BACK,
+            cause);
+        if (!event.callEvent()) return;
+        if (org.bukkit.event.player.PlayerSignOpenEvent.getHandlerList().getRegisteredListeners().length > 0) {
+            final org.bukkit.event.player.PlayerSignOpenEvent.Cause legacyCause = switch (cause) {
+                case PLACE -> org.bukkit.event.player.PlayerSignOpenEvent.Cause.PLACE;
+                case PLUGIN -> org.bukkit.event.player.PlayerSignOpenEvent.Cause.PLUGIN;
+                case INTERACT -> org.bukkit.event.player.PlayerSignOpenEvent.Cause.INTERACT;
+                case UNKNOWN -> org.bukkit.event.player.PlayerSignOpenEvent.Cause.UNKNOWN;
+            };
+        if (!org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerSignOpenEvent(entityhuman, tileentitysign, flag, legacyCause)) {
+        // Paper end - Add PlayerOpenSignEvent
             return;
         }
-        // Craftbukkit end
+        } // Paper - Add PlayerOpenSignEvent
         tileentitysign.setAllowedPlayerEditor(entityhuman.getUUID());
         entityhuman.openTextEdit(tileentitysign, flag);
     }
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java b/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java
index a12702cdf36c75572e661b5b5758270f5058c181..8303343ecca91076839f4436d6b3a3bf4739c2fd 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java
@@ -168,9 +168,15 @@ public class CraftSign<T extends SignBlockEntity> extends CraftBlockEntityState<
         Preconditions.checkArgument(sign.isPlaced(), "Sign must be placed");
         Preconditions.checkArgument(sign.getWorld() == player.getWorld(), "Sign must be in same world as Player");
 
+        // Paper start - Add PlayerOpenSignEvent
+        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;
+        if (PlayerSignOpenEvent.getHandlerList().getRegisteredListeners().length > 0) {
+            // Paper end - Add PlayerOpenSignEvent
         if (!CraftEventFactory.callPlayerSignOpenEvent(player, sign, side, PlayerSignOpenEvent.Cause.PLUGIN)) {
             return;
         }
+        } // Paper - Add PlayerOpenSignEvent
 
         SignBlockEntity handle = ((CraftSign<?>) sign).getTileEntity();
         handle.setAllowedPlayerEditor(player.getUniqueId());