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<?php
// +-----------------------------------------------------------------------+
// | Copyright (c) 2005, Bertrand Mansion |
// | All rights reserved. |
// | |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | are met: |
// | |
// | o Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | o Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution.|
// | o The names of the authors may not be used to endorse or promote |
// | products derived from this software without specific prior written |
// | permission. |
// | |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
// | |
// +-----------------------------------------------------------------------+
// | Author: Bertrand Mansion <bmansion@mamasam.com> |
// | Stephan Schmidt <schst@php.net> |
// +-----------------------------------------------------------------------+
//
// $Id: Notification.php,v 1.2 2005/02/14 10:35:18 mansion Exp $
/**
* Default state of the notification
*/
define('EVENT_NOTIFICATION_STATE_DEFAULT', 0);
/**
* Notification has been cancelled
*/
define('EVENT_NOTIFICATION_STATE_CANCELLED', 1);
/**
* A Notification object
*
* The Notification object can be easily subclassed and serves as a container
* for the information about the notification. It holds an object which is
* usually a reference to the object that posted the notification,
* a notification name used to identify the notification and some user
* information which can be anything you need.
*
* @category Event
* @package Event_Dispatcher
* @author Bertrand Mansion <bmansion@mamasam.com>
* @author Stephan Schmidt <schst@php.net>
* @copyright 1997-2005 The PHP Group
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
* @version Release: 1.0.0
* @link http://pear.php.net/package/Event_Dispatcher
*/
class Event_Notification
{
/**
* name of the notofication
* @var string
* @access private
*/
var $_notificationName;
/**
* object of interesed (the sender of the notification, in most cases)
* @var object
* @access private
*/
var $_notificationObject;
/**
* additional information about the notification
* @var mixed
* @access private
*/
var $_notificationInfo = array();
/**
* state of the notification
*
* This may be:
* - EVENT_NOTIFICATION_STATE_DEFAULT
* - EVENT_NOTIFICATION_STATE_CANCELLED
*
* @var integer
* @access private
*/
var $_notificationState = EVENT_NOTIFICATION_STATE_DEFAULT;
/**
* amount of observers that received this notification
* @var mixed
* @access private
*/
var $_notificationCount = 0;
/**
* Constructor
*
* @access public
* @param object The object of interest for the notification,
* usually is the posting object
* @param string Notification name
* @param array Free information array
*/
function Event_Notification(&$object, $name, $info = array())
{
$this->_notificationObject =& $object;
$this->_notificationName = $name;
$this->_notificationInfo = $info;
}
/**
* Returns the notification name
* @return string Notification name
*/
function getNotificationName()
{
return $this->_notificationName;
}
/**
* Returns the contained object
* @return object Contained object
*/
function &getNotificationObject()
{
return $this->_notificationObject;
}
/**
* Returns the user info array
* @return array user info
*/
function getNotificationInfo()
{
return $this->_notificationInfo;
}
/**
* Increase the internal count
*
* @access public
*/
function increaseNotificationCount()
{
++$this->_notificationCount;
}
/**
* Get the number of posted notifications
*
* @access public
* @return int
*/
function getNotificationCount()
{
return $this->_notificationCount;
}
/**
* Cancel the notification
*
* @access public
* @return void
*/
function cancelNotification()
{
$this->_notificationState = EVENT_NOTIFICATION_STATE_CANCELLED;
}
/**
* Checks whether the notification has been cancelled
*
* @access public
* @return boolean
*/
function isNotificationCancelled()
{
return ($this->_notificationState === EVENT_NOTIFICATION_STATE_CANCELLED);
}
}
?>
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