elementor / core / frontend / render-mode-manager.php

render-mode-manager.php in Elementor Website Builder – more than just a page builder 3.0.0, at core/frontend/render-mode-manager.php

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1	<?php
2	namespace Elementor\Core\Frontend;
3
4	use Elementor\Core\Frontend\RenderModes\Render_Mode_Base;
5	use Elementor\Core\Frontend\RenderModes\Render_Mode_Normal;
6
7	if ( ! defined( 'ABSPATH' ) ) {
8	exit; // Exit if accessed directly.
9	}
10
11	class Render_Mode_Manager {
12	const QUERY_STRING_PARAM_NAME = 'render_mode';
13	const QUERY_STRING_POST_ID = 'post_id';
14	const QUERY_STRING_NONCE_PARAM_NAME = 'render_mode_nonce';
15	const NONCE_ACTION_PATTERN = 'render_mode_{post_id}';
16
17	/**
18	* @var Render_Mode_Base
19	*/
20	private $current;
21
22	/**
23	* @var Render_Mode_Base[]
24	*/
25	private $render_modes = [];
26
27	/**
28	* @param $post_id
29	* @param $render_mode_name
30	*
31	* @return string
32	*/
33	public static function get_base_url( $post_id, $render_mode_name ) {
34	return add_query_arg( [
35	self::QUERY_STRING_POST_ID => $post_id,
36	self::QUERY_STRING_PARAM_NAME => $render_mode_name,
37	self::QUERY_STRING_NONCE_PARAM_NAME => wp_create_nonce( self::get_nonce_action( $post_id ) ),
38	'ver' => time(),
39	], get_permalink( $post_id ) );
40	}
41
42	/**
43	* @param $post_id
44	*
45	* @return string
46	*/
47	public static function get_nonce_action( $post_id ) {
48	return str_replace( '{post_id}', $post_id, self::NONCE_ACTION_PATTERN );
49	}
50
51	/**
52	* Register a new render mode into the render mode manager.
53	*
54	* @param $class_name
55	*
56	* @return $this
57	* @throws \Exception
58	*/
59	public function register_render_mode( $class_name ) {
60	if ( ! is_subclass_of( $class_name, Render_Mode_Base::class ) ) {
61	throw new \Exception( "'{$class_name}' must extends 'Render_Mode_Base'" );
62	}
63
64	$this->render_modes[ $class_name::get_name() ] = $class_name;
65
66	return $this;
67	}
68
69	/**
70	* Get the current render mode.
71	*
72	* @return Render_Mode_Base
73	*/
74	public function get_current() {
75	return $this->current;
76	}
77
78	/**
79	* Set render mode.
80	*
81	* @return $this
82	*/
83	private function set_current_render_mode() {
84	$post_id = null;
85	$key = null;
86	$nonce = null;
87
88	if ( isset( $_GET[ self::QUERY_STRING_POST_ID ] ) ) {
89	$post_id = $_GET[ self::QUERY_STRING_POST_ID ]; // phpcs:ignore -- Nonce will be checked next line.
90	}
91
92	if ( isset( $_GET[ self::QUERY_STRING_NONCE_PARAM_NAME ] ) ) {
93	$nonce = $_GET[ self::QUERY_STRING_NONCE_PARAM_NAME ]; // phpcs:ignore -- Nonce will be checked next line.
94	}
95
96	if ( isset( $_GET[ self::QUERY_STRING_PARAM_NAME ] ) ) {
97	$key = $_GET[ self::QUERY_STRING_PARAM_NAME ]; // phpcs:ignore -- Nonce will be checked next line.
98	}
99
100	if (
101	$post_id &&
102	$nonce &&
103	wp_verify_nonce( $nonce, self::get_nonce_action( $post_id ) ) &&
104	$key &&
105	array_key_exists( $key, $this->render_modes )
106	) {
107	$this->current = new $this->render_modes[ $key ]( $post_id );
108	} else {
109	$this->current = new Render_Mode_Normal( $post_id );
110	}
111
112	return $this;
113	}
114
115	/**
116	* Add actions base on the current render.
117	*
118	* @throws \Requests_Exception_HTTP_403
119	*/
120	private function add_current_actions() {
121	if ( ! $this->current->get_permissions_callback() ) {
122	throw new \Requests_Exception_HTTP_403();
123	}
124
125	// Run when 'template-redirect' actually because the the class is instantiate when 'template-redirect' run.
126	$this->current->prepare_render();
127	}
128
129	/**
130	* Render_Mode_Manager constructor.
131	*
132	* @throws \Exception
133	*/
134	public function __construct() {
135	$this->register_render_mode( Render_Mode_Normal::class );
136
137	do_action( 'elementor/frontend/render_mode/register', $this );
138
139	$this->set_current_render_mode();
140	$this->add_current_actions();
141	}
142	}
143