89 lines
1.7 KiB
PHP
89 lines
1.7 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Class ActionScheduler_Versions
|
|
*/
|
|
class ActionScheduler_Versions {
|
|
/**
|
|
* ActionScheduler_Versions instance.
|
|
*
|
|
* @var ActionScheduler_Versions
|
|
*/
|
|
private static $instance = null;
|
|
|
|
/**
|
|
* Versions.
|
|
*
|
|
* @var array<string, callable>
|
|
*/
|
|
private $versions = array();
|
|
|
|
/**
|
|
* Register version's callback.
|
|
*
|
|
* @param string $version_string Action Scheduler version.
|
|
* @param callable $initialization_callback Callback to initialize the version.
|
|
*/
|
|
public function register( $version_string, $initialization_callback ) {
|
|
if ( isset( $this->versions[ $version_string ] ) ) {
|
|
return false;
|
|
}
|
|
$this->versions[ $version_string ] = $initialization_callback;
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Get all versions.
|
|
*/
|
|
public function get_versions() {
|
|
return $this->versions;
|
|
}
|
|
|
|
/**
|
|
* Get latest version registered.
|
|
*/
|
|
public function latest_version() {
|
|
$keys = array_keys( $this->versions );
|
|
if ( empty( $keys ) ) {
|
|
return false;
|
|
}
|
|
uasort( $keys, 'version_compare' );
|
|
return end( $keys );
|
|
}
|
|
|
|
/**
|
|
* Get callback for latest registered version.
|
|
*/
|
|
public function latest_version_callback() {
|
|
$latest = $this->latest_version();
|
|
|
|
if ( empty( $latest ) || ! isset( $this->versions[ $latest ] ) ) {
|
|
return '__return_null';
|
|
}
|
|
|
|
return $this->versions[ $latest ];
|
|
}
|
|
|
|
/**
|
|
* Get instance.
|
|
*
|
|
* @return ActionScheduler_Versions
|
|
* @codeCoverageIgnore
|
|
*/
|
|
public static function instance() {
|
|
if ( empty( self::$instance ) ) {
|
|
self::$instance = new self();
|
|
}
|
|
return self::$instance;
|
|
}
|
|
|
|
/**
|
|
* Initialize.
|
|
*
|
|
* @codeCoverageIgnore
|
|
*/
|
|
public static function initialize_latest_version() {
|
|
$self = self::instance();
|
|
call_user_func( $self->latest_version_callback() );
|
|
}
|
|
}
|