From 440a040fc1c9673186be49157299f67dfbb9167a Mon Sep 17 00:00:00 2001
From: DemonWav <demonwav@gmail.com>
Date: Sat, 30 Jan 2016 19:17:19 -0600
Subject: [PATCH] Add Location support to tab completers (vanilla feature
 missing in CraftBukkit)


diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 4a421ba..ff8770b 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1151,7 +1151,7 @@ public abstract class MinecraftServer implements Runnable, ICommandListener, IAs
             return arraylist;
         }
         */
-        return server.tabComplete(icommandlistener, s);
+        return server.tabComplete(icommandlistener, s, blockposition); // PaperSpigot - add Location argument
         // CraftBukkit end
     }
 
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index a54b3e8..642880e 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -29,6 +29,7 @@ import org.bukkit.BanList;
 import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 import org.bukkit.GameMode;
+import org.bukkit.Location;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.Server;
 import org.bukkit.UnsafeValues;
@@ -1597,21 +1598,38 @@ public final class CraftServer implements Server {
     }
 
     public List<String> tabComplete(net.minecraft.server.ICommandListener sender, String message) {
+        return tabComplete(sender, message, null); // PaperSpigot - location tab-completes. Original code here moved below
+    }
+
+    // PaperSpigot start - add BlockPosition support
+    /*
+        this code is copied, except for the noted change, from the original tabComplete(net.minecraft.server.ICommandListener sender, String message) method
+     */
+    public List<String> tabComplete(net.minecraft.server.ICommandListener sender, String message, BlockPosition blockPosition) {
         if (!(sender instanceof EntityPlayer)) {
             return ImmutableList.of();
         }
 
         Player player = ((EntityPlayer) sender).getBukkitEntity();
         if (message.startsWith("/")) {
-            return tabCompleteCommand(player, message);
+            return tabCompleteCommand(player, message, blockPosition);
         } else {
             return tabCompleteChat(player, message);
         }
     }
+    // PaperSpigot end
 
     public List<String> tabCompleteCommand(Player player, String message) {
+        return tabCompleteCommand(player, message, null); // PaperSpigot - location tab-completes. Original code here moved below
+    }
+
+    // PaperSpigot start - add BlockPosition support
+    /*
+        this code is copied, except for the noted change, from the original tabCompleteCommand(Player player, String message) method
+     */
+    public List<String> tabCompleteCommand(Player player, String message, BlockPosition blockPosition) {
         // Spigot Start
-		if ( (org.spigotmc.SpigotConfig.tabComplete < 0 || message.length() <= org.spigotmc.SpigotConfig.tabComplete) && !message.contains( " " ) )
+        if ( (org.spigotmc.SpigotConfig.tabComplete < 0 || message.length() <= org.spigotmc.SpigotConfig.tabComplete) && !message.contains( " " ) )
         {
             return ImmutableList.of();
         }
@@ -1619,7 +1637,13 @@ public final class CraftServer implements Server {
 
         List<String> completions = null;
         try {
-            completions = getCommandMap().tabComplete(player, message.substring(1));
+            // send location info if present
+            // completions = getCommandMap().tabComplete(player, message.substring(1));
+            if (blockPosition == null || !((CraftWorld) player.getWorld()).getHandle().paperSpigotConfig.allowBlockLocationTabCompletion) {
+                completions = getCommandMap().tabComplete(player, message.substring(1));
+            } else {
+                completions = getCommandMap().tabComplete(player, message.substring(1), new Location(player.getWorld(), blockPosition.getX(), blockPosition.getY(), blockPosition.getZ()));
+            }
         } catch (CommandException ex) {
             player.sendMessage(ChatColor.RED + "An internal error occurred while attempting to tab-complete this command");
             getLogger().log(Level.SEVERE, "Exception when " + player.getName() + " attempted to tab complete " + message, ex);
@@ -1627,6 +1651,7 @@ public final class CraftServer implements Server {
 
         return completions == null ? ImmutableList.<String>of() : completions;
     }
+    // PaperSpigot end
 
     public List<String> tabCompleteChat(Player player, String message) {
         List<String> completions = new ArrayList<String>();
diff --git a/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java b/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java
index de788d6..db46eb0 100644
--- a/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java
+++ b/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java
@@ -7,6 +7,7 @@ import net.minecraft.server.*;
 
 import org.apache.commons.lang.Validate;
 import org.apache.logging.log4j.Level;
+import org.bukkit.Location;
 import org.bukkit.command.BlockCommandSender;
 import org.bukkit.command.CommandSender;
 import org.bukkit.command.ConsoleCommandSender;
@@ -46,11 +47,25 @@ public final class VanillaCommandWrapper extends VanillaCommand {
 
     @Override
     public List<String> tabComplete(CommandSender sender, String alias, String[] args) throws IllegalArgumentException {
+        return tabComplete(sender, alias, args, null); // PaperSpigot - location tab-completes. Original code moved below
+    }
+
+    // PaperSpigot start - location tab-completes
+    /*
+        this code is copied, except for the noted change, from the original tabComplete(CommandSender sender, String alias, String[] args) method
+     */
+    @Override
+    public List<String> tabComplete(CommandSender sender, String alias, String[] args, Location location) throws IllegalArgumentException {
         Validate.notNull(sender, "Sender cannot be null");
         Validate.notNull(args, "Arguments cannot be null");
         Validate.notNull(alias, "Alias cannot be null");
-        return (List<String>) vanillaCommand.tabComplete(getListener(sender), args, new BlockPosition(0, 0, 0));
+        if (location == null) { // PaperSpigot use location information if available
+            return (List<String>) vanillaCommand.tabComplete(getListener(sender), args, new BlockPosition(0, 0, 0));
+        } else {
+            return (List<String>) vanillaCommand.tabComplete(getListener(sender), args, new BlockPosition(location.getBlockX(), location.getBlockY(), location.getBlockZ()));
+        }
     }
+    // PaperSpigot end
 
     public static CommandSender lastSender = null; // Nasty :(
 
diff --git a/src/main/java/org/github/paperspigot/PaperSpigotWorldConfig.java b/src/main/java/org/github/paperspigot/PaperSpigotWorldConfig.java
index ecb9519..008b79c 100644
--- a/src/main/java/org/github/paperspigot/PaperSpigotWorldConfig.java
+++ b/src/main/java/org/github/paperspigot/PaperSpigotWorldConfig.java
@@ -396,4 +396,10 @@ public class PaperSpigotWorldConfig
     {
         allChunksAreSlimeChunks = getBoolean( "all-chunks-are-slime-chunks", false );
     }
+
+    public boolean allowBlockLocationTabCompletion;
+    private void allowBlockLocationTabCompletion()
+    {
+        allowBlockLocationTabCompletion = getBoolean( "allow-block-location-tab-completion", true );
+    }
 }
-- 
2.7.0