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45 lines
974 B
45 lines
974 B
<?php
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namespace SparkLib\Application;
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/**
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* A place for Controllers to put response callbacks. See
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* docs for Controller&respondTo().
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*/
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class Responder {
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protected $_callbacks;
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/**
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* @param $callbacks array optional hash of functions for type extensions
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*/
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public function __construct (array $callbacks = array())
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{
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$this->_callbacks = $callbacks;
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}
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/**
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* Set a callback function for a type using property syntax.
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*/
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public function __set ($type, $callback)
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{
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$this->_callbacks[$type] = $callback;
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}
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public function __isset ($type)
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{
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return isset($this->_callbacks[$type]);
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}
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/**
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* Call, if set, the appropriate callback for a desired content type.
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*/
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public function run ($type)
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{
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if ($callback = $this->_callbacks[$type])
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// Careful here - it's a fatal error if this isn't a function:
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return $callback();
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else
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throw new \Exception('No callback provided for ' . $type);
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}
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}
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