68 lines
1.4 KiB
PHP
68 lines
1.4 KiB
PHP
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<?php
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/**
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* Handles adding and dispatching events
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*
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* @package Requests
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* @subpackage Utilities
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*/
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/**
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* Handles adding and dispatching events
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*
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* @package Requests
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* @subpackage Utilities
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*/
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class Requests_Hooks implements Requests_Hooker {
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/**
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* Registered callbacks for each hook
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*
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* @var array
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*/
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protected $hooks = array();
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/**
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* Constructor
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*/
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public function __construct() {
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// pass
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}
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/**
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* Register a callback for a hook
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*
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* @param string $hook Hook name
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* @param callback $callback Function/method to call on event
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* @param int $priority Priority number. <0 is executed earlier, >0 is executed later
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*/
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public function register($hook, $callback, $priority = 0) {
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if (!isset($this->hooks[$hook])) {
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$this->hooks[$hook] = array();
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}
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if (!isset($this->hooks[$hook][$priority])) {
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$this->hooks[$hook][$priority] = array();
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}
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$this->hooks[$hook][$priority][] = $callback;
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}
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/**
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* Dispatch a message
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*
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* @param string $hook Hook name
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* @param array $parameters Parameters to pass to callbacks
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* @return boolean Successfulness
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*/
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public function dispatch($hook, $parameters = array()) {
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if (empty($this->hooks[$hook])) {
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return false;
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}
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foreach ($this->hooks[$hook] as $priority => $hooked) {
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foreach ($hooked as $callback) {
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call_user_func_array($callback, $parameters);
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}
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}
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return true;
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}
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}
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