Shortcode Classes

gistfile1.php

<?php

/**
 * Example Shortcode Classes.
 * Shamelessly stolen fron Daniel Bachhuber
 *
 * Short-term - a wrapper around add_shortcode.
 * Long-term  - WP should use shortcode classes and povide compatability with old-style shortcodes.
 */

/**
 * Wrapper for registering a shortcode.
 * @param  WP_Shortcode $shortcode [description]
 * @return [type]                  [description]
 */
function register_shortcode_class( WP_Shortcode $shortcode ) {

	add_shortcode( $shortcode->get_tag(), get_class( $shortcode ) . '::render' );

	if ( ! empty( $shortcode->get_ui_args() ) ) {
		Shortcode_UI::get_instance()->register_shortcode_ui(
			$shortcode->get_tag(),
			$shortcode->get_ui_args()
		);
	}

}

abstract class WP_Shortcode {

	/**
	 * Get Shortcode Tag
	 */
	public function get_tag() {
		$parts = explode( '\\', get_called_class() );
		$tag   = array_pop( $parts );
		return strtolower( str_replace( '_', '-', $tag ) );
	}

	/**
	 * Output Shortcode
	 */
	static public function render( $atts, $content = null ) {}

	/**
	 * Get UI args.
	 *
	 * @return array UI args.
	 */
	public function get_ui_args() {
		return array();
	}

}

/**
 * Example of creating your own shortcode.
 */
class My_Shortcode extends WP_Shortcode {

	static public function render( $atts, $content = null ) {
		var_dump( 'My Shortcode' );
	}

}

add_action( 'init', function() {

	register_shortcode_class( new My_Shortcode );

});