Shortcode album

shortcode-album.php

<?php
/*
 Plugin Name: Album shortcode
 Version: 0.1
 Description: Un shortcode pour afficher un album
 */

// don't load directly
if ( !defined('ABSPATH') )
	die('-1');


// Plugin constants
define('SC_ALBUM_VERSION', '0.1');

// Plugin URL and PATH
define('SC_ALBUM_URL', plugin_dir_url ( __FILE__ ));
define('SC_ALBUM_DIR', plugin_dir_path( __FILE__ ));

// Function for easy load files
function _sc_album_load_files($dir, $files, $prefix = '') {
	foreach ($files as $file) {
		if ( is_file($dir . $prefix . $file . ".php") ) {
			require_once($dir . $prefix . $file . ".php");
		}
	}	
}

// Plugin client classes
_sc_album_load_files(SC_ALBUM_DIR . 'classes/', array( 'main', 'shortcode' ) );

add_action('plugins_loaded', 'init_sc_album_plugin');
function init_sc_album_plugin() {
	// Client
	new SC_Album_Main();
}

shortcode.php

class SC_Album_Main{
	function __construct() {
		add_action( 'init', array( __CLASS__, 'init_shortcode' ) );
	}
	
	public static function init_shortcode() {
		add_shortcode( 'shortcode-album', array( __CLASS__, 'shortcode' ) );
	}
	
	/**
	 * Shortcode method
	 *
	 * @param array $atts
	 * @param string $content
	 *
	 * @return bool|string
	 * @author Nicolas Juen
	 */
	public static function shortcode( $atts = array() ) {
		// On parse les attributs avec une version par défaut
		$atts = shortcode_atts( array(
			'id' => 0,
			'display_artist' => false,
			'add_link' => false
		), $atts );
		
		if( absint( $atts['id'] ) <= 0 ) {
			return '';
		}
		
		// Récupération du template
		$tpl = self::get_component_template_path( 'shortcode-album' );

		// Vérification de la présence de celui-ci
		if ( empty( $tpl ) ) {
			return false;
		}
		
	}
	
	/**
	 * Get the template_path for includes
	 *
	 * @param string $tpl
	 *
	 * @return bool|string
	 * @author Nicolas Juen
	 *
	 */
	public static function get_component_template_path( $tpl = '' ) {
		if ( empty( $tpl ) ) {
			return false;
		}

		// Display the form, allow take template from child or parent theme
		if ( is_file( STYLESHEETPATH . '/views/shortcode/' . $tpl . '.php' ) ) {// Use custom template from child theme
			return ( STYLESHEETPATH . '/views/shortcode/' . $tpl . '.php' );
		} elseif ( is_file( TEMPLATEPATH . '/views/shortcode/' . $tpl . '.php' ) ) {// Use custom template from parent theme
			return (TEMPLATEPATH . '/views/shortcode/' . $tpl . '.php' );
		} elseif ( is_file( SC_ALBUM_DIR . 'views/' . $tpl . '.php' ) ) {// Use builtin template
			return ( SC_ALBUM_DIR . 'views/' . $tpl . '.php' );
		}

		return false;
	}
}