Add more API template and implement nick change event.

Essentials/src/com/earth2me/essentials/commands/Commandnick.java

@@ -4,6 +4,8 @@ import static com.earth2me.essentials.I18n._;
 import com.earth2me.essentials.User;
 import com.earth2me.essentials.utils.FormatUtil;
 import java.util.Locale;
+import net.ess3.api.events.LocalChatSpyEvent;
+import net.ess3.api.events.NickChangeEvent;
 import org.bukkit.Server;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
@@ -62,14 +64,12 @@ public class Commandnick extends EssentialsLoopCommand
 		final String nick = args[0];
 		if (target.getName().equalsIgnoreCase(nick))
 		{
-			target.setNickname(nick);
+			setNickname(server, sender, target, nick);
-			target.setDisplayNick();
 			target.sendMessage(_("nickNoMore"));
 		}
 		else if ("off".equalsIgnoreCase(nick))
 		{
-			target.setNickname(null);
+			setNickname(server, sender, target, null);
-			target.setDisplayNick();
 			target.sendMessage(_("nickNoMore"));
 		}
 		else if (nickInUse(server, target, nick))
@@ -78,8 +78,7 @@ public class Commandnick extends EssentialsLoopCommand
 		}
 		else
 		{
-			target.setNickname(nick);
+			setNickname(server, sender, target, nick);
-			target.setDisplayNick();
 			target.sendMessage(_("nickSet", target.getDisplayName()));
 		}
 	}
@@ -115,4 +114,16 @@ public class Commandnick extends EssentialsLoopCommand
 		}
 		return false;
 	}
+
+	private void setNickname(final Server server, final CommandSender sender, final User target, final String nickname)
+	{
+		final User controller = sender instanceof Player ? ess.getUser(sender) : null;
+		final NickChangeEvent nickEvent = new NickChangeEvent(controller, target, nickname);
+		server.getPluginManager().callEvent(nickEvent);
+		if (!nickEvent.isCancelled())
+		{
+			target.setNickname(nickname);
+			target.setDisplayNick();
+		}
+	}
 }

Essentials/src/net/ess3/api/events/AfkStatusChangeEvent.java

@@ -1,10 +1,12 @@
 package net.ess3.api.events;
 
+import net.ess3.api.IUser;
+
 
 public class AfkStatusChangeEvent extends StatusChangeEvent
 {
-	public AfkStatusChangeEvent()
+	public AfkStatusChangeEvent(IUser affected, IUser controller, boolean value)
 	{
-
+		super(affected, controller, value);
 	}
 }

Essentials/src/net/ess3/api/events/GodStatusChangeEvent.java

@@ -1,10 +1,12 @@
 package net.ess3.api.events;
 
+import net.ess3.api.IUser;
+
 
 public class GodStatusChangeEvent extends StatusChangeEvent
 {
-	public GodStatusChangeEvent()
+	public GodStatusChangeEvent(IUser affected, IUser controller, boolean value)
 	{
-
+		super(affected, controller, value);
 	}
 }

Essentials/src/net/ess3/api/events/IgnoreStatusChangeEvent.java

@@ -1,11 +1,13 @@
 package net.ess3.api.events;
 
+import net.ess3.api.IUser;
+
 
 public class IgnoreStatusChangeEvent extends StatusChangeEvent
 {
-	public IgnoreStatusChangeEvent()
+	public IgnoreStatusChangeEvent(IUser affected, IUser controller, boolean value)
 	{
-
+		super(affected, controller, value);
 	}
 
 }

Essentials/src/net/ess3/api/events/JailStatusChangeEvent.java

@@ -1,10 +1,12 @@
 package net.ess3.api.events;
 
+import net.ess3.api.IUser;
+
 
 public class JailStatusChangeEvent extends StatusChangeEvent
 {
-	public JailStatusChangeEvent()
+	public JailStatusChangeEvent(IUser affected, IUser controller, boolean value)
 	{
-
+		super(affected, controller, value);
 	}
 }

Essentials/src/net/ess3/api/events/MuteStatusChangeEvent.java

@@ -1,10 +1,14 @@
 package net.ess3.api.events;
 
+import net.ess3.api.IUser;
+
 
 public class MuteStatusChangeEvent extends StatusChangeEvent
 {
-	public MuteStatusChangeEvent()
+	
+	public MuteStatusChangeEvent(IUser affected, IUser controller, boolean value)
 	{
-
+		super(affected, controller, value);
 	}
+
 }

Essentials/src/net/ess3/api/events/NickChangeEvent.java

@@ -0,0 +1,25 @@
+package net.ess3.api.events;
+
+import net.ess3.api.IUser;
+import org.bukkit.event.Cancellable;
+
+public class NickChangeEvent extends StateChangeEvent implements Cancellable
+{
+	private String newValue;
+	
+	public NickChangeEvent(IUser affected, IUser controller, String value) {
+		super(affected, controller);
+        this.newValue = value;
+    }
+	
+	public NickChangeEvent(boolean isAsync, IUser affected, IUser controller, String value) {
+		super(isAsync, affected, controller);
+        this.newValue = value;
+    }
+	
+	public String getValue()
+	{
+		return newValue;
+	}
+	
+}

Essentials/src/net/ess3/api/events/StateChangeEvent.java

@@ -0,0 +1,65 @@
+package net.ess3.api.events;
+
+import net.ess3.api.IUser;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+
+
+/**
+ * This handles common boilerplate for other StatusChangeEvents
+ *
+ */
+public class StateChangeEvent extends Event implements Cancellable
+{
+	private static final HandlerList handlers = new HandlerList();
+	private boolean cancelled = false;
+	IUser affected;
+	IUser controller;
+	
+	public StateChangeEvent(IUser affected, IUser controller) {
+		super();
+		this.affected = affected;
+		this.controller = controller;
+    }
+	
+	public StateChangeEvent(boolean isAsync, IUser affected, IUser controller) {
+		super(isAsync);
+		this.affected = affected;
+		this.controller = controller;
+    }
+
+	public IUser getAffected()
+	{
+		return this.affected;
+	}
+
+	public IUser getController()
+	{
+		return controller;
+	}
+
+	@Override
+	public HandlerList getHandlers()
+	{
+		return handlers;
+	}
+
+	public static HandlerList getHandlerList()
+	{
+		return handlers;
+	}
+
+	@Override
+	public boolean isCancelled()
+	{
+		return cancelled;
+	}
+
+	@Override
+	public void setCancelled(boolean cancelled)
+	{
+		this.cancelled = cancelled;
+	}
+
+}

Essentials/src/net/ess3/api/events/StatusChangeEvent.java

@@ -1,53 +1,29 @@
 package net.ess3.api.events;
 
-import com.earth2me.essentials.User;
+import net.ess3.api.IUser;
 import org.bukkit.event.Cancellable;
-import org.bukkit.event.Event;
-import org.bukkit.event.HandlerList;
-
 
 /**
  * This handles common boilerplate for other StatusChangeEvents
  *
  */
-public class StatusChangeEvent extends Event implements Cancellable
+public class StatusChangeEvent extends StateChangeEvent implements Cancellable
 {
-	private static final HandlerList handlers = new HandlerList();
+	private boolean newValue;
-	private boolean cancelled;
+	
-	User affected;
+	public StatusChangeEvent(IUser affected, IUser controller, boolean value) {
-	User controller;
+		super(affected, controller);
-
+        this.newValue = value;
-	public User getAffected()
+    }
+	
+	public StatusChangeEvent(boolean isAsync, IUser affected, IUser controller, boolean value) {
+		super(isAsync, affected, controller);
+        this.newValue = value;
+    }
+	
+	public boolean getValue()
 	{
-		return this.affected;
+		return newValue;
 	}
-
+	
-	public User getController()
-	{
-		return controller;
-	}
-
-	@Override
-	public HandlerList getHandlers()
-	{
-		return handlers;
-	}
-
-	public static HandlerList getHandlerList()
-	{
-		return handlers;
-	}
-
-	@Override
-	public boolean isCancelled()
-	{
-		return cancelled;
-	}
-
-	@Override
-	public void setCancelled(boolean cancelled)
-	{
-		this.cancelled = cancelled;
-	}
-
 }