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<?php
/**
* Types assets manager.
*
* All assets (like images and other files) should be defined here, referenced only by constants and their paths/URLs
* retrieved only with methods of this class.
*
* That will make their management way easier when some paths or filenames need to be changed.
*
* @since 2.0
*/
final class Types_Assets {
// Constants with image paths relative to public/images.
const IMG_AJAX_LOADER_OVERLAY = '/ajax-loader-overlay.gif';
private static $instance;
public static function get_instance() {
if( null == self::$instance ) {
self::$instance = new self();
}
return self::$instance;
}
/**
* Initialize the asset manager for script and styles.
*
* Must be called early, before init, else special measures are needed.
*
* @since 2.0
*/
public function initialize_scripts_and_styles() {
Types_Asset_Manager::get_instance();
}
private function __clone() { }
private function __construct() { }
/**
* For given image, return it's relative URL.
*
* @param string $image Image defined as a constant of Types_Assets.
* @return string Relative URL of the image.
* @since 2.0
*/
public function get_image_url( $image ) {
return TYPES_RELPATH . '/public/images' . $image;
}
}