<?php
namespace Elementor\Core\Frontend;
use Elementor\Core\Frontend\RenderModes\Render_Mode_Base;
use Elementor\Core\Frontend\RenderModes\Render_Mode_Normal;
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly.
}
class Render_Mode_Manager {
const QUERY_STRING_PARAM_NAME = 'render_mode';
const QUERY_STRING_POST_ID = 'post_id';
const QUERY_STRING_NONCE_PARAM_NAME = 'render_mode_nonce';
const NONCE_ACTION_PATTERN = 'render_mode_{post_id}';
/**
* @var Render_Mode_Base
*/
private $current;
/**
* @var Render_Mode_Base[]
*/
private $render_modes = [];
/**
* @param $post_id
* @param $render_mode_name
*
* @return string
*/
public static function get_base_url( $post_id, $render_mode_name ) {
return add_query_arg( [
self::QUERY_STRING_POST_ID => $post_id,
self::QUERY_STRING_PARAM_NAME => $render_mode_name,
self::QUERY_STRING_NONCE_PARAM_NAME => wp_create_nonce( self::get_nonce_action( $post_id ) ),
'ver' => time(),
], get_permalink( $post_id ) );
}
/**
* @param $post_id
*
* @return string
*/
public static function get_nonce_action( $post_id ) {
return str_replace( '{post_id}', $post_id, self::NONCE_ACTION_PATTERN );
}
/**
* Register a new render mode into the render mode manager.
*
* @param $class_name
*
* @return $this
* @throws \Exception
*/
public function register_render_mode( $class_name ) {
if ( ! is_subclass_of( $class_name, Render_Mode_Base::class ) ) {
throw new \Exception( "'{$class_name}' must extends 'Render_Mode_Base'" );
}
$this->render_modes[ $class_name::get_name() ] = $class_name;
return $this;
}
/**
* Get the current render mode.
*
* @return Render_Mode_Base
*/
public function get_current() {
return $this->current;
}
/**
* @param Render_Mode_Base $render_mode
*
* @return $this
*/
private function set_current( Render_Mode_Base $render_mode ) {
$this->current = $render_mode;
return $this;
}
/**
* Set render mode.
*
* @return $this
*/
private function choose_render_mode() {
$post_id = null;
$key = null;
$nonce = null;
if ( isset( $_GET[ self::QUERY_STRING_POST_ID ] ) ) {
$post_id = $_GET[ self::QUERY_STRING_POST_ID ]; // phpcs:ignore -- Nonce will be checked next line.
}
if ( isset( $_GET[ self::QUERY_STRING_NONCE_PARAM_NAME ] ) ) {
$nonce = $_GET[ self::QUERY_STRING_NONCE_PARAM_NAME ]; // phpcs:ignore -- Nonce will be checked next line.
}
if ( isset( $_GET[ self::QUERY_STRING_PARAM_NAME ] ) ) {
$key = $_GET[ self::QUERY_STRING_PARAM_NAME ]; // phpcs:ignore -- Nonce will be checked next line.
}
if (
$post_id &&
$nonce &&
wp_verify_nonce( $nonce, self::get_nonce_action( $post_id ) ) &&
$key &&
array_key_exists( $key, $this->render_modes )
) {
$this->set_current( new $this->render_modes[ $key ]( $post_id ) );
} else {
$this->set_current( new Render_Mode_Normal( $post_id ) );
}
return $this;
}
/**
* Add actions base on the current render.
*
* @throws \Requests_Exception_HTTP_403
*/
private function add_current_actions() {
if ( ! $this->current->get_permissions_callback() ) {
throw new \Requests_Exception_HTTP_403();
}
// Run when 'template-redirect' actually because the the class is instantiate when 'template-redirect' run.
$this->current->prepare_render();
}
/**
* Render_Mode_Manager constructor.
*
* @throws \Exception
*/
public function __construct() {
$this->register_render_mode( Render_Mode_Normal::class );
do_action( 'elementor/frontend/render_mode/register', $this );
$this->choose_render_mode();
$this->add_current_actions();
}
}