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<?php
// Do not allow directly accessing this file.
if ( ! defined( 'ABSPATH' ) ) {
exit( 'Direct script access denied.' );
}
/**
* The Autoloader class for Avada.
*/
class Avada_Autoload {
/**
* The transient name.
*
* @static
* @access private
* @since 5.0.0
* @var string
*/
private static $transient_name = '';
/**
* Stored paths.
*
* @static
* @access private
* @since 5.0.0
* @var array
*/
private static $cached_paths = array();
/**
* Whether the cache needs updating or not.
*
* @static
* @access private
* @since 5.0.0
* @var bool
*/
private static $update_cache = false;
/**
* The class constructor.
*
* @access public
*/
public function __construct() {
// Set the transient name.
if ( empty( self::$transient_name ) ) {
self::$transient_name = 'avada_autoloader_paths_' . md5( __FILE__ );
}
// Get the cached paths array.
$this->get_cached_paths();
// Register our autoloader.
spl_autoload_register( array( $this, 'include_class_file' ) );
// Update caches.
add_action( 'shutdown', array( $this, 'update_cached_paths' ) );
}
/**
* Gets the cached paths.
*
* @access protected
* @since 5.0.0
* @return void
*/
protected function get_cached_paths() {
self::$cached_paths = get_site_transient( self::$transient_name );
}
/**
* Gets the path for a specific class-name.
*
* @access protected
* @since 5.0.0
* @param string $class_name The class-name we're looking for.
* @return false|string The full path to the class, or false if not found.
*/
protected function get_path( $class_name ) {
$paths = array();
if ( 0 === stripos( $class_name, 'Avada' ) || 0 === stripos( $class_name, 'Fusion' ) ) {
$path = wp_normalize_path( Avada::$template_dir_path . '/includes/' );
$filename = 'class-' . strtolower( str_replace( '_', '-', $class_name ) ) . '.php';
$paths[] = $path . $filename;
$substr = str_replace( array( 'Avada_', 'Fusion_' ), '', $class_name );
$exploded = explode( '_', $substr );
$levels = count( $exploded );
$previous_path = '';
for ( $i = 0; $i < $levels; $i++ ) {
$paths[] = $path . $previous_path . strtolower( $exploded[ $i ] ) . '/' . $filename;
$previous_path .= strtolower( $exploded[ $i ] ) . '/';
}
foreach ( $paths as $path ) {
$path = wp_normalize_path( $path );
if ( file_exists( $path ) ) {
return $path;
}
}
}
return false;
}
/**
* Get the path & include the file for the class.
*
* @access public
* @since 5.0.0
* @param string $class_name The class-name we're looking for.
* @return void
*/
public function include_class_file( $class_name ) {
// If the path is cached, use it & early exit.
if ( isset( self::$cached_paths[ $class_name ] ) ) {
include_once self::$cached_paths[ $class_name ];
return;
}
// If we got this far, the path is not cached.
// We'll need to get it, and add it to the cache.
$path = $this->get_path( $class_name );
// If the path was not found, early exit.
if ( false === $path ) {
return;
}
// Include the path.
include_once $path;
// Add path to the array of paths to cache.
self::$cached_paths[ $class_name ] = $path;
// Make sure we update the caches.
self::$update_cache = true;
}
/**
* Update caches if needed.
*
* @access public
* @since 5.0.0
* @return void
*/
public function update_cached_paths() {
// If we don't need to update the caches, early exit.
if ( false === self::$update_cache ) {
return;
}
// Cache for an hour using transients.
set_site_transient( self::$transient_name, self::$cached_paths, HOUR_IN_SECONDS );
}
}