diff options
Diffstat (limited to 'plugins/Irc/extlib/phergie/Phergie/Event/Handler.php')
| -rw-r--r-- | plugins/Irc/extlib/phergie/Phergie/Event/Handler.php | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/plugins/Irc/extlib/phergie/Phergie/Event/Handler.php b/plugins/Irc/extlib/phergie/Phergie/Event/Handler.php new file mode 100644 index 000000000..e308df8a5 --- /dev/null +++ b/plugins/Irc/extlib/phergie/Phergie/Event/Handler.php @@ -0,0 +1,190 @@ +<?php +/** + * Phergie + * + * PHP version 5 + * + * LICENSE + * + * This source file is subject to the new BSD license that is bundled + * with this package in the file LICENSE. + * It is also available through the world-wide-web at this URL: + * http://phergie.org/license + * + * @category Phergie + * @package Phergie + * @author Phergie Development Team <team@phergie.org> + * @copyright 2008-2010 Phergie Development Team (http://phergie.org) + * @license http://phergie.org/license New BSD License + * @link http://pear.phergie.org/package/Phergie + */ + +/** + * Handles events initiated by plugins. + * + * @category Phergie + * @package Phergie + * @author Phergie Development Team <team@phergie.org> + * @license http://phergie.org/license New BSD License + * @link http://pear.phergie.org/package/Phergie + */ +class Phergie_Event_Handler implements IteratorAggregate, Countable +{ + /** + * Current queue of events + * + * @var array + */ + protected $events; + + /** + * Constructor to initialize the event queue. + * + * @return void + */ + public function __construct() + { + $this->events = array(); + } + + /** + * Adds an event to the queue. + * + * @param Phergie_Plugin_Abstract $plugin Plugin originating the event + * @param string $type Event type, corresponding to a + * Phergie_Event_Command::TYPE_* constant + * @param array $args Optional event arguments + * + * @return Phergie_Event_Handler Provides a fluent interface + */ + public function addEvent(Phergie_Plugin_Abstract $plugin, $type, + array $args = array() + ) { + if (!defined('Phergie_Event_Command::TYPE_' . strtoupper($type))) { + throw new Phergie_Event_Exception( + 'Unknown event type "' . $type . '"', + Phergie_Event_Exception::ERR_UNKNOWN_EVENT_TYPE + ); + } + + $event = new Phergie_Event_Command; + $event + ->setPlugin($plugin) + ->setType($type) + ->setArguments($args); + + $this->events[] = $event; + + return $this; + } + + /** + * Returns the current event queue. + * + * @return array Enumerated array of Phergie_Event_Command objects + */ + public function getEvents() + { + return $this->events; + } + + /** + * Clears the event queue. + * + * @return Phergie_Event_Handler Provides a fluent interface + */ + public function clearEvents() + { + $this->events = array(); + return $this; + } + + /** + * Replaces the current event queue with a given queue of events. + * + * @param array $events Ordered list of objects of the class + * Phergie_Event_Command + * + * @return Phergie_Event_Handler Provides a fluent interface + */ + public function replaceEvents(array $events) + { + $this->events = $events; + return $this; + } + + /** + * Returns whether an event of the given type exists in the queue. + * + * @param string $type Event type from Phergie_Event_Request::TYPE_* + * constants + * + * @return bool TRUE if an event of the specified type exists in the + * queue, FALSE otherwise + */ + public function hasEventOfType($type) + { + foreach ($this->events as $event) { + if ($event->getType() == $type) { + return true; + } + } + return false; + } + + /** + * Returns a list of events of a specified type. + * + * @param string $type Event type from Phergie_Event_Request::TYPE_* + * constants + * + * @return array Array containing event instances of the specified type + * or an empty array if no such events were found + */ + public function getEventsOfType($type) + { + $events = array(); + foreach ($this->events as $event) { + if ($event->getType() == $type) { + $events[] = $event; + } + } + return $events; + } + + /** + * Removes a single event from the event queue. + * + * @param Phergie_Event_Command $event Event to remove + * + * @return Phergie_Event_Handler Provides a fluent interface + */ + public function removeEvent(Phergie_Event_Command $event) + { + $key = array_search($event, $this->events); + if ($key !== false) { + unset($this->events[$key]); + } + return $this; + } + + /** + * Returns an iterator for the current event queue. + * + * @return ArrayIterator + */ + public function getIterator() + { + return new ArrayIterator($this->events); + } + + /** + * Returns the number of events in the event queue + * + * @return int number of queued events + */ + public function count() + { + return count($this->events); + } +} |