powered-cache / includes / classes / MetaBox.php

MetaBox.php in Powered Cache – Caching and Optimization for WordPress – Easily Improve PageSpeed & Web Vitals Score 2.0.1, at includes/classes/MetaBox.php

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1	<?php
2	/**
3	* Metabox related functionalities
4	*
5	* @package PoweredCache
6	*/
7
8	namespace PoweredCache;
9
10	use const PoweredCache\Constants\POST_META_DISABLE_CACHE_KEY;
11	use const PoweredCache\Constants\POST_META_DISABLE_LAZYLOAD_KEY;
12
13	/**
14	* Class MetaBox
15	*/
16	class MetaBox {
17
18	/**
19	* Placeholder constructor
20	*/
21	public function __construct() {
22	}
23
24	/**
25	* Return an instance of the current class
26	*
27	* @return MetaBox
28	* @since 2.0
29	*/
30	public static function factory() {
31	static $instance = false;
32
33	if ( ! $instance ) {
34	$instance = new self();
35	$instance->setup();
36	}
37
38	return $instance;
39	}
40
41	/**
42	* Setup hooks
43	*/
44	public function setup() {
45	add_action( 'init', [ $this, 'register_meta_field' ] );
46	add_action( 'add_meta_boxes', [ $this, 'add_meta_boxes' ] );
47	add_action( 'save_post', [ $this, 'save_post_meta' ], 10, 2 );
48	}
49
50	/**
51	* Add metabox
52	*/
53	public function add_meta_boxes() {
54	$is_block_editor_compatible = false;
55	$back_compat = true;
56
57	if ( version_compare( get_bloginfo( 'version' ), '5.3', '<' ) ) {
58	$is_block_editor_compatible = true;
59	$back_compat = false;
60	}
61
62	add_meta_box(
63	'powered_cache_post_meta',
64	esc_html__( 'Powered Cache', 'powered-cache' ),
65	[ $this, 'meta_box' ],
66	'post',
67	'side',
68	'high',
69	[
70	'__block_editor_compatible_meta_box' => $is_block_editor_compatible,
71	'__back_compat_meta_box' => $back_compat,
72	]
73	);
74	}
75
76	/**
77	* Display metabox output for classic editor
78	*
79	* @param Object $post \WP_Post
80	*/
81	public function meta_box( $post ) {
82	$settings = \PoweredCache\Utils\get_settings();
83	$is_cache_disabled = (bool) get_post_meta( $post->ID, POST_META_DISABLE_CACHE_KEY, true );
84
85	if ( ! $settings['enable_page_cache'] && ! $settings['enable_lazy_load'] ) {
86	return; // nothing to control post specific
87	}
88	?>
89	<div id="powered-cache-meta-box">
90	<?php wp_nonce_field( 'powered_cache_post_meta', 'powered_cache_post_meta_nonce' ); ?>
91	<?php if ( $settings['enable_page_cache'] ) : ?>
92	<fieldset>
93	<legend class="screen-reader-text"><?php esc_html_e( 'Powered Cache Status', 'powered-cache' ); ?></legend>
94	<input <?php checked( $is_cache_disabled, true ); ?> type="checkbox" id="<?php echo esc_attr( POST_META_DISABLE_CACHE_KEY ); ?>" name="<?php echo esc_attr( POST_META_DISABLE_CACHE_KEY ); ?>" value="1">
95	<label for="<?php echo esc_attr( POST_META_DISABLE_CACHE_KEY ); ?>"><?php esc_html_e( 'Don\'t cache this post', 'powered-cache' ); ?></label>
96	</fieldset>
97	<?php endif; ?>
98	<?php if ( $settings['enable_lazy_load'] ) : ?>
99	<?php $is_lazyload_disabled = (bool) get_post_meta( $post->ID, POST_META_DISABLE_LAZYLOAD_KEY, true ); ?>
100	<fieldset>
101	<legend class="screen-reader-text"><?php esc_html_e( 'Disable Lazy Load', 'powered-cache' ); ?></legend>
102	<input <?php checked( $is_lazyload_disabled, true ); ?> type="checkbox" id="<?php echo esc_attr( POST_META_DISABLE_LAZYLOAD_KEY ); ?>" name="<?php echo esc_attr( POST_META_DISABLE_LAZYLOAD_KEY ); ?>" value="1">
103	<label for="<?php echo esc_attr( POST_META_DISABLE_LAZYLOAD_KEY ); ?>"><?php esc_html_e( 'Disable lazy loading for this post', 'powered-cache' ); ?></label>
104	</fieldset>
105	<?php endif; ?>
106	</div>
107	<?php
108	}
109
110
111	/**
112	* Register meta field for block editor
113	*/
114	public function register_meta_field() {
115	$settings = \PoweredCache\Utils\get_settings();
116	$public_posts_types = get_post_types(
117	[
118	'public' => true,
119	'publicly_queryable' => true,
120	],
121	'names',
122	'or'
123	);
124
125	foreach ( (array) $public_posts_types as $post_type ) {
126	if ( $settings['enable_page_cache'] ) {
127	register_post_meta(
128	$post_type,
129	POST_META_DISABLE_CACHE_KEY,
130	[
131	'show_in_rest' => true,
132	'single' => true,
133	'type' => 'boolean',
134	'auth_callback' => function () {
135	return current_user_can( 'edit_posts' );
136	},
137	]
138	);
139	}
140
141	if ( $settings['enable_lazy_load'] ) {
142	register_post_meta(
143	$post_type,
144	POST_META_DISABLE_LAZYLOAD_KEY,
145	[
146	'show_in_rest' => true,
147	'single' => true,
148	'type' => 'boolean',
149	'auth_callback' => function () {
150	return current_user_can( 'edit_posts' );
151	},
152	]
153	);
154	}
155	}
156
157	}
158
159	/**
160	* Save meta info
161	*
162	* @param int $post_id Post ID
163	* @param Object $post \WP_Post
164	*/
165	public function save_post_meta( $post_id, $post ) {
166	$post_id = absint( $post_id );
167
168	if ( empty( $post_id ) \|\| empty( $post ) ) {
169	return;
170	}
171
172	if ( ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) ) {
173	return;
174	}
175
176	// saved in a separate request in the block editor
177	if ( defined( 'REST_REQUEST' ) && REST_REQUEST ) {
178	return;
179	}
180
181	// Check user has permission to edit.
182	if ( ! current_user_can( 'edit_post', $post_id ) ) {
183	return;
184	}
185
186	if ( empty( $_POST['powered_cache_post_meta_nonce'] ) ) {
187	return;
188	}
189
190	// nonce check
191	if ( ! wp_verify_nonce( wp_unslash( $_POST['powered_cache_post_meta_nonce'] ), 'powered_cache_post_meta' ) ) {
192	return;
193	}
194
195	if ( isset( $_POST[ POST_META_DISABLE_CACHE_KEY ] ) ) {
196	$cache_status = (bool) $_POST[ POST_META_DISABLE_CACHE_KEY ];
197	update_post_meta( $post_id, POST_META_DISABLE_CACHE_KEY, $cache_status );
198	} else {
199	// don't need to store default value in meta
200	delete_post_meta( $post_id, POST_META_DISABLE_CACHE_KEY );
201	}
202
203	if ( isset( $_POST[ POST_META_DISABLE_LAZYLOAD_KEY ] ) ) {
204	$lazyload_status = (bool) $_POST[ POST_META_DISABLE_LAZYLOAD_KEY ];
205	update_post_meta( $post_id, POST_META_DISABLE_LAZYLOAD_KEY, $lazyload_status );
206	} else {
207	// don't need to store default value in meta
208	delete_post_meta( $post_id, POST_META_DISABLE_LAZYLOAD_KEY );
209	}
210
211	}
212
213
214	}
215