Moved user.setDisplayName() from EssentialsChat to Essentials

Added new config: change-displayname (default to true)
It allows users to disable the setDisplayName, if they have other plugins that modify the display name
Updated user.getNick() to use StringBuilder

Essentials/src/com/earth2me/essentials/EssentialsPlayerListener.java

@@ -60,6 +60,10 @@ public class EssentialsPlayerListener extends PlayerListener
 			{
 			}
 		}
+		if (ess.getSettings().changeDisplayName())
+		{
+			user.setDisplayName(user.getNick());
+		}
 	}
 
 	@Override
@@ -85,6 +89,10 @@ public class EssentialsPlayerListener extends PlayerListener
 			user.setAfk(false);
 			ess.broadcastMessage(user.getName(), Util.format("userIsNotAway", user.getDisplayName()));
 		}
+		if (ess.getSettings().changeDisplayName())
+		{
+			user.setDisplayName(user.getNick());
+		}
 	}
 
 	@Override
@@ -266,9 +274,13 @@ public class EssentialsPlayerListener extends PlayerListener
 			return;
 		}
 
-		user.setDisplayName(user.getNick());
+		if (ess.getSettings().changeDisplayName())
+		{
+			user.setDisplayName(user.getNick());
+		}
 		user.setAfk(false);
-		if (user.isAuthorized("essentials.sleepingignored")) {
+		if (user.isAuthorized("essentials.sleepingignored"))
+		{
 			user.setSleepingIgnored(true);
 		}
 
@@ -344,6 +356,10 @@ public class EssentialsPlayerListener extends PlayerListener
 			return;
 		}
 		User user = ess.getUser(event.getPlayer());
+		if (ess.getSettings().changeDisplayName())
+		{
+			user.setDisplayName(user.getNick());
+		}
 		if (!user.isJailed() || user.getJail() == null || user.getJail().isEmpty())
 		{
 			return;
@@ -637,7 +653,10 @@ public class EssentialsPlayerListener extends PlayerListener
 	@Override
 	public void onPlayerCommandPreprocess(PlayerCommandPreprocessEvent event)
 	{
-		if (event.isCancelled()) return;
+		if (event.isCancelled())
+		{
+			return;
+		}
 		User user = ess.getUser(event.getPlayer());
 		String cmd = event.getMessage().toLowerCase().split(" ")[0].replace("/", "").toLowerCase();
 		if (("msg".equals(cmd) || "r".equals(cmd) || "mail".equals(cmd)))

Essentials/src/com/earth2me/essentials/Settings.java

@@ -395,5 +395,10 @@ public class Settings implements IConf
 	{
 		return config.getBoolean("remove-god-on-disconnect", false);
 	}
+
+	boolean changeDisplayName()
+	{
+		return config.getBoolean("change-displayname", true);
+	}
 	
 }

Essentials/src/com/earth2me/essentials/User.java

@@ -223,26 +223,39 @@ public class User extends UserData implements Comparable<User>, IReplyTo, IUser
 
 	public String getNick()
 	{
-		String nickname = getNickname();
+		final StringBuilder nickname = new StringBuilder();
-		if (ess.getSettings().isCommandDisabled("nick") || nickname == null || nickname.isEmpty() || nickname.equals(getName()))
+		final String nick = getNickname();
+		if (ess.getSettings().isCommandDisabled("nick") || nick == null || nick.isEmpty() || nick.equals(getName()))
 		{
-			nickname = getName();
+			nickname.append(getName());
 		}
 		else
 		{
-			nickname = ess.getSettings().getNicknamePrefix() + nickname;
+			nickname.append(ess.getSettings().getNicknamePrefix()).append(nick);
 		}
 		if (isOp())
 		{
 			try
 			{
-				nickname = ess.getSettings().getOperatorColor().toString() + nickname + "§f";
+				nickname.insert(0, ess.getSettings().getOperatorColor().toString());
+				nickname.append("§f");
 			}
 			catch (Exception e)
 			{
 			}
 		}
-		return nickname;
+
+		final String prefix = ess.getPermissionsHandler().getPrefix(this).replace('&', '§').replace("{WORLDNAME}", this.getWorld().getName());
+		final String suffix = ess.getPermissionsHandler().getSuffix(this).replace('&', '§').replace("{WORLDNAME}", this.getWorld().getName());
+
+		nickname.insert(0, prefix);
+		nickname.append(suffix);
+		if (suffix.length() > 1 && suffix.substring(suffix.length() - 2, suffix.length() - 1).equals("§"))
+		{
+			nickname.append("§f");
+		}
+
+		return nickname.toString();
 	}
 
 	public Teleport getTeleport()

Essentials/src/config.yml

@@ -34,6 +34,9 @@ ops-name-color: 'c'
 # The character(s) to prefix all nicknames, so that you know they are not true usernames.
 nickname-prefix: '~'
 
+# Disable this if you have any other plugin, that modifies the displayname of a user.
+change-displayname: true
+
 # The delay, in seconds, required between /home, /tp, etc.
 teleport-cooldown: 0
 

EssentialsChat/src/com/earth2me/essentials/chat/EssentialsChatPlayerListener.java

@@ -35,15 +35,6 @@ public class EssentialsChatPlayerListener extends PlayerListener
 	public void onPlayerJoin(final PlayerJoinEvent event)
 	{
 		final User user = ess.getUser(event.getPlayer());
-		updateDisplayName(user);
-	}
-
-	private void updateDisplayName(final User user)
-	{
-		final String prefix = ess.getPermissionsHandler().getPrefix(user).replace('&', '§').replace("{WORLDNAME}", user.getWorld().getName());
-		final String suffix = ess.getPermissionsHandler().getSuffix(user).replace('&', '§').replace("{WORLDNAME}", user.getWorld().getName());
-
-		user.setDisplayName(prefix + user.getNick() + suffix + (suffix.length() > 1 && suffix.substring(suffix.length() - 2, suffix.length() - 1).equals("§") ? "" : "§f"));
 	}
 
 	@Override
@@ -58,7 +49,6 @@ public class EssentialsChatPlayerListener extends PlayerListener
 			return;
 
 		final User user = ess.getUser(event.getPlayer());
-		updateDisplayName(user);
 
 		if (user.isAuthorized("essentials.chat.color"))
 		{