#2372: Add SettingsChangedEvent for client-side settings

api/src/main/java/net/md_5/bungee/api/event/SettingsChangedEvent.java

@@ -0,0 +1,32 @@
+package net.md_5.bungee.api.event;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.plugin.Event;
+
+/**
+ * Called after a {@link ProxiedPlayer} changed one or more of the following
+ * (client-side) settings:
+ *
+ * <ul>
+ * <li>View distance</li>
+ * <li>Locale</li>
+ * <li>Displayed skin parts</li>
+ * <li>Chat visibility</li>
+ * <li>Chat colors</li>
+ * <li>Main hand side (left or right)</li>
+ * </ul>
+ */
+@Data
+@ToString(callSuper = false)
+@EqualsAndHashCode(callSuper = false)
+public class SettingsChangedEvent extends Event
+{
+
+    /**
+     * Player who changed the settings.
+     */
+    private final ProxiedPlayer player;
+}

proxy/src/main/java/net/md_5/bungee/connection/UpstreamBridge.java

@@ -12,6 +12,7 @@ import net.md_5.bungee.api.connection.ProxiedPlayer;
 import net.md_5.bungee.api.event.ChatEvent;
 import net.md_5.bungee.api.event.PlayerDisconnectEvent;
 import net.md_5.bungee.api.event.PluginMessageEvent;
+import net.md_5.bungee.api.event.SettingsChangedEvent;
 import net.md_5.bungee.api.event.TabCompleteEvent;
 import net.md_5.bungee.forge.ForgeConstants;
 import net.md_5.bungee.netty.ChannelWrapper;
@@ -175,6 +176,9 @@ public class UpstreamBridge extends PacketHandler
     public void handle(ClientSettings settings) throws Exception
     {
         con.setSettings( settings );
+
+        SettingsChangedEvent settingsEvent = new SettingsChangedEvent( con );
+        bungee.getPluginManager().callEvent( settingsEvent );
     }
 
     @Override