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<?php if ( ! defined('EVENT_ESPRESSO_VERSION')) exit('No direct script access allowed'); |
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/** |
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* Event Espresso |
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* |
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* Event Registration and Management Plugin for WordPress |
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* |
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* @ package Event Espresso |
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* @ author Event Espresso |
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* @ copyright (c) 2008-2011 Event Espresso All Rights Reserved. |
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* @ license http://eventespresso.com/support/terms-conditions/ * see Plugin Licensing * |
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* @ link http://www.eventespresso.com |
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* @ version 4.0 |
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* |
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* ------------------------------------------------------------------------ |
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* |
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* EES_Shortcode |
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* |
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* @package Event Espresso |
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* @subpackage /shortcodes/ |
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* @author Brent Christensen |
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* |
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* ------------------------------------------------------------------------ |
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*/ |
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abstract class EES_Shortcode extends EE_Base { |
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/** |
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* @protected public |
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* @var array $_attributes |
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*/ |
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protected $_attributes = array(); |
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/** |
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* run - initial shortcode module setup called during "parse_request" hook by |
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* \EE_Front_Controller::_initialize_shortcodes() IF this shortcode is going to execute during this request ! |
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* It may also get called by \EES_Shortcode::fallback_shortcode_processor() if the shortcode is being implemented |
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* by a theme or plugin in a non-standard way. |
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* Basically this method is primarily used for loading resources and assets like CSS or JS |
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* that will be required by the shortcode when it is actually processed. |
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* Please note that assets may not load if the fallback_shortcode_processor() is being used. |
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* |
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* @access public |
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* @param WP $WP |
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* @return void |
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*/ |
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public abstract function run( WP $WP ); |
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/** |
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* process_shortcode |
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* this method is the callback function for the actual shortcode, and is what runs when WP encounters the shortcode within the_content |
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* |
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* @access public |
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* @param array $attributes |
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* @return mixed |
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*/ |
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public abstract function process_shortcode( $attributes = array() ); |
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/** |
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* instance - returns instance of child class object |
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* |
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* @access public |
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* @param string $shortcode_class |
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* @return \EES_Shortcode |
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*/ |
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final public static function instance( $shortcode_class = null ) { |
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$shortcode_class = ! empty( $shortcode_class ) ? $shortcode_class : get_called_class(); |
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if ( $shortcode_class === 'EES_Shortcode' || empty( $shortcode_class )) { |
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return null; |
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} |
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$shortcode = str_replace( 'EES_', '', strtoupper( $shortcode_class )); |
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$shortcode_obj = isset( EE_Registry::instance()->shortcodes->{$shortcode} ) |
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? EE_Registry::instance()->shortcodes->{$shortcode} |
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: null; |
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return $shortcode_obj instanceof $shortcode_class || $shortcode_class === 'self' |
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? $shortcode_obj |
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: new $shortcode_class(); |
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} |
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/** |
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* fallback_shortcode_processor - create instance and call process_shortcode |
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* NOTE: shortcode may not function perfectly dues to missing assets, but it's better than not having things work at all |
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* |
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* @access public |
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* @param $attributes |
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* @return mixed |
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*/ |
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final public static function fallback_shortcode_processor( $attributes ) { |
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if ( EE_Maintenance_Mode::disable_frontend_for_maintenance() ) { |
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return null; |
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} |
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// what shortcode was actually parsed ? |
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$shortcode_class = get_called_class(); |
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// notify rest of system that fallback processor was triggered |
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add_filter( 'FHEE__fallback_shortcode_processor__' . $shortcode_class, '__return_true' ); |
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// get instance of actual shortcode |
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$shortcode_obj = self::instance( $shortcode_class ); |
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// verify class |
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if ( $shortcode_obj instanceof EES_Shortcode ) { |
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global $wp; |
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$shortcode_obj->run( $wp ); |
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// set attributes and run the shortcode |
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$shortcode_obj->_attributes = (array)$attributes; |
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return $shortcode_obj->process_shortcode( $shortcode_obj->_attributes ); |
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} else { |
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return null; |
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} |
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} |
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/** |
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* invalid_shortcode_processor - used in cases where we know the shortcode is invalid, most likely due to a deactivated addon, and simply returns an empty string |
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* |
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* @access public |
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* @param $attributes |
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* @return string |
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*/ |
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final public static function invalid_shortcode_processor( $attributes ) { |
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return ''; |
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} |
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/** |
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* class constructor - should ONLY be instantiated by EE_Front_Controller |
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*/ |
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final public function __construct() { |
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// get classname, remove EES_prefix, and convert to UPPERCASE |
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$shortcode = strtoupper( str_replace( 'EES_', '', get_class( $this ))); |
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// assign shortcode to the preferred callback, which overwrites the "fallback shortcode processor" assigned earlier |
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add_shortcode( $shortcode, array( $this, 'process_shortcode' )); |
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// make sure system knows this is an EE page |
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EE_Registry::instance()->REQ->set_espresso_page( TRUE ); |
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} |
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/** |
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* @param array $attributes |
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* @param array $custom_sanitization |
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* @return array |
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*/ |
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public static function sanitize_attributes(array $attributes, $custom_sanitization = array()) |
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{ |
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foreach ($attributes as $key => $value) { |
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// is a custom sanitization callback specified ? |
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if ( isset($custom_sanitization[$key])) { |
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$callback = $custom_sanitization[$key]; |
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if ($callback === 'skip_sanitization') { |
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$attributes[$key] = $value; |
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continue; |
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} else if (function_exists($callback)){ |
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$attributes[$key] = $callback($value); |
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continue; |
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} |
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} |
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switch (true) { |
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case $value === null : |
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case is_int($value) : |
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case is_float($value) : |
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// typical booleans |
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case in_array($value, array(true, 'true', '1', 'on', 'yes', false, 'false', '0', 'off', 'no'), true) : |
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$attributes[$key] = $value; |
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break; |
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case is_string($value) : |
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$attributes[$key] = sanitize_text_field($value); |
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break; |
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case is_array($value) : |
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$attributes[$key] = \EES_Shortcode::sanitize_attributes($value); |
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break; |
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default : |
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// only remaining data types are Object and Resource |
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// which are not allowed as shortcode attributes |
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$attributes[$key] = null; |
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break; |
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} |
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} |
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return $attributes; |
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} |
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} |
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// End of file EES_Shortcode.shortcode.php |
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// Location: /shortcodes/EES_Shortcode.shortcode.php |
eventespresso /
event-espresso-core
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.