Adding ChatLeaveAction

Still need to be called on unload.

file/lib/action/ChatLeaveAction.class.php

@@ -0,0 +1,61 @@
+<?php
+namespace wcf\action;
+use \wcf\data\chat;
+use \wcf\system\WCF;
+
+/**
+ * Makes the user leave Tims Chat.
+ * 
+ * @author 	Tim Düsterhus
+ * @copyright	2010-2012 Tim Düsterhus
+ * @license	Creative Commons Attribution-NonCommercial-ShareAlike <http://creativecommons.org/licenses/by-nc-sa/3.0/legalcode>
+ * @package	timwolla.wcf.chat
+ * @subpackage	action
+ */
+class ChatLeaveAction extends AbstractAction {
+	public $neededModules = array('CHAT_ACTIVE');
+	//public $neededPermissions = array('user.chat.canEnter');
+	public $room = null;
+	public $userData = array();
+	
+	/**
+	 * @see wcf\action\IAction::execute()
+	 */
+	public function execute() {
+		parent::execute();
+		
+		// validate
+		if (!WCF::getUser()->userID) {
+			throw new IllegalLinkException();
+		}
+		
+		$this->userData['roomID'] = \wcf\util\ChatUtil::readUserData('roomID');
+		
+		$this->room = chat\room\ChatRoom::getCache()->search($this->userData['roomID']);
+		if (!$this->room) throw new \wcf\system\exception\IllegalLinkException();
+		if (!$this->room->canEnter()) throw new \wcf\system\exception\PermissionDeniedException();
+		
+		if (CHAT_DISPLAY_JOIN_LEAVE) {
+			$this->userData['color'] = \wcf\util\ChatUtil::readUserData('color');
+			
+			$messageAction = new chat\message\ChatMessageAction(array(), 'create', array(
+				'data' => array(
+					'roomID' => $this->room->roomID,
+					'sender' => WCF::getUser()->userID,
+					'username' => WCF::getUser()->username,
+					'time' => TIME_NOW,
+					'type' => chat\message\ChatMessage::TYPE_LEAVE,
+					'message' => '',
+					'color1' => $this->userData['color'][1],
+					'color2' => $this->userData['color'][2]
+				)
+			));
+			$messageAction->executeAction();
+		}
+		
+		\wcf\util\ChatUtil::writeUserData(array('roomID' => null));
+		
+		$this->executed();
+		exit;
+	}
+}