Hiding display names (#2248) @AllTheMegahertz

Prevents a user's nickname from appearing if they are hidden, if `hide-displayname-in-vanish: true` in the config. Closes #2221.

* Does not return display name if user is hidden

* Added hide-displayname-in-vanish field

* Added hideDisplayNameInVanish()

* Changed to only hide display name if specified in config

* Changed hideDisplayNameInVanish to default to false if not specified in config.yml

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

@@ -243,6 +243,8 @@ public interface ISettings extends IConf {
 
     boolean ignoreColorsInMaxLength();
 
+    boolean hideDisplayNameInVanish();
+
     int getMaxUserCacheCount();
 
     boolean allowSilentJoinQuit();

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

@@ -1103,6 +1103,11 @@ public boolean ignoreColorsInMaxLength() {
         return config.getBoolean("ignore-colors-in-max-nick-length", false);
     }
 
+    @Override
+    public boolean hideDisplayNameInVanish() {
+        return config.getBoolean("hide-displayname-in-vanish", false);
+    }
+
     private boolean allowSilentJoin;
 
     public boolean _allowSilentJoinQuit() {

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

@@ -360,7 +360,7 @@ public void setDisplayNick() {
     }
 
     public String getDisplayName() {
-        return super.getBase().getDisplayName() == null ? super.getBase().getName() : super.getBase().getDisplayName();
+        return super.getBase().getDisplayName() == null || (ess.getSettings().hideDisplayNameInVanish() && isHidden()) ? super.getBase().getName() : super.getBase().getDisplayName();
     }
 
     @Override

Essentials/src/config.yml

@@ -36,6 +36,10 @@ max-nick-length: 15
 # ie: "&6Notch" has 7 characters (2 are part of a color code), a length of 5 is used when this option is set to true
 ignore-colors-in-max-nick-length: false
 
+# When this option is enabled, display names for hidden users will not be shown. This prevents players from being
+# able to see that they are online while vanished.
+hide-displayname-in-vanish: true
+
 # Disable this if you have any other plugin, that modifies the displayname of a user.
 change-displayname: true