Implement TabCompleteEvent

src/main/java/org/bukkit/craftbukkit/CraftServer.java

@@ -126,6 +126,7 @@ import io.netty.buffer.ByteBufOutputStream;
 import io.netty.buffer.Unpooled;
 import io.netty.handler.codec.base64.Base64;
 import jline.console.ConsoleReader;
+import org.bukkit.event.server.TabCompleteEvent;
 
 public final class CraftServer implements Server {
     private static final Player[] EMPTY_PLAYER_ARRAY = new Player[0];
@@ -1536,12 +1537,18 @@ public final class CraftServer implements Server {
             return ImmutableList.of();
         }
 
+        List<String> offers;
         Player player = ((EntityPlayer) sender).getBukkitEntity();
         if (message.startsWith("/")) {
-            return tabCompleteCommand(player, message);
+            offers = tabCompleteCommand(player, message);
         } else {
-            return tabCompleteChat(player, message);
+            offers = tabCompleteChat(player, message);
         }
+
+        TabCompleteEvent tabEvent = new TabCompleteEvent(player, message, offers);
+        getPluginManager().callEvent(tabEvent);
+
+        return tabEvent.isCancelled() ? Collections.EMPTY_LIST : tabEvent.getCompletions();
     }
 
     public List<String> tabCompleteCommand(Player player, String message) {

src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java

@@ -1,5 +1,6 @@
 package org.bukkit.craftbukkit.command;
 
+import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.ExecutionException;
 import java.util.logging.Level;
@@ -8,6 +9,7 @@ import org.bukkit.craftbukkit.CraftServer;
 import org.bukkit.craftbukkit.util.Waitable;
 
 import jline.console.completer.Completer;
+import org.bukkit.event.server.TabCompleteEvent;
 
 public class ConsoleCommandCompleter implements Completer {
     private final CraftServer server;
@@ -20,7 +22,12 @@ public class ConsoleCommandCompleter implements Completer {
         Waitable<List<String>> waitable = new Waitable<List<String>>() {
             @Override
             protected List<String> evaluate() {
-                return server.getCommandMap().tabComplete(server.getConsoleSender(), buffer);
+                List<String> offers = server.getCommandMap().tabComplete(server.getConsoleSender(), buffer);
+
+                TabCompleteEvent tabEvent = new TabCompleteEvent(server.getConsoleSender(), buffer, offers);
+                server.getPluginManager().callEvent(tabEvent);
+
+                return tabEvent.isCancelled() ? Collections.EMPTY_LIST : tabEvent.getCompletions();
             }
         };
         this.server.getServer().processQueue.add(waitable);