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Jetpack – WP Security, Backup, Speed, & Growth / 8.8
Jetpack – WP Security, Backup, Speed, & Growth v8.8
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jetpack / modules / likes.php

likes.php in Jetpack – WP Security, Backup, Speed, & Growth 8.8, at modules/likes.php

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1 <?php
2 /**
3 * Module Name: Likes
4 * Module Description: Give visitors an easy way to show they appreciate your content.
5 * First Introduced: 2.2
6 * Sort Order: 23
7 * Requires Connection: Yes
8 * Auto Activate: No
9 * Module Tags: Social
10 * Feature: Engagement
11 * Additional Search Queries: like, likes, wordpress.com
12 */
13
14 use Automattic\Jetpack\Assets;
15
16 Assets::add_resource_hint(
17 array(
18 '//widgets.wp.com',
19 '//s0.wp.com',
20 '//0.gravatar.com',
21 '//1.gravatar.com',
22 '//2.gravatar.com',
23 ),
24 'dns-prefetch'
25 );
26
27 include_once dirname( __FILE__ ) . '/likes/jetpack-likes-master-iframe.php';
28 include_once dirname( __FILE__ ) . '/likes/jetpack-likes-settings.php';
29
30 class Jetpack_Likes {
31 public static function init() {
32 static $instance = NULL;
33
34 if ( ! $instance ) {
35 $instance = new Jetpack_Likes();
36 }
37
38 return $instance;
39 }
40
41 function __construct() {
42 $this->in_jetpack = ( defined( 'IS_WPCOM' ) && IS_WPCOM ) ? false : true;
43 $this->settings = new Jetpack_Likes_Settings();
44
45 // We need to run on wp hook rather than init because we check is_amp_endpoint()
46 // when bootstrapping hooks
47 add_action( 'wp', array( &$this, 'action_init' ), 99 );
48
49 add_action( 'admin_init', array( $this, 'admin_init' ) );
50
51 if ( $this->in_jetpack ) {
52 add_action( 'jetpack_activate_module_likes', array( $this, 'set_social_notifications_like' ) );
53 add_action( 'jetpack_deactivate_module_likes', array( $this, 'delete_social_notifications_like' ) );
54
55 Jetpack::enable_module_configurable( __FILE__ );
56 add_filter( 'jetpack_module_configuration_url_likes', array( $this, 'jetpack_likes_configuration_url' ) );
57 add_action( 'admin_print_scripts-settings_page_sharing', array( &$this, 'load_jp_css' ) );
58 add_filter( 'sharing_show_buttons_on_row_start', array( $this, 'configuration_target_area' ) );
59
60 $active = Jetpack::get_active_modules();
61
62 if ( ! in_array( 'sharedaddy', $active ) && ! in_array( 'publicize', $active ) ) {
63 // we don't have a sharing page yet
64 add_action( 'admin_menu', array( $this->settings, 'sharing_menu' ) );
65 }
66
67 if ( in_array( 'publicize', $active ) && ! in_array( 'sharedaddy', $active ) ) {
68 // we have a sharing page but not the global options area
69 add_action( 'pre_admin_screen_sharing', array( $this->settings, 'sharing_block' ), 20 );
70 add_action( 'pre_admin_screen_sharing', array( $this->settings, 'updated_message' ), -10 );
71 }
72
73 if( ! in_array( 'sharedaddy', $active ) ) {
74 add_action( 'admin_init', array( $this->settings, 'process_update_requests_if_sharedaddy_not_loaded' ) );
75 add_action( 'sharing_global_options', array( $this->settings, 'admin_settings_showbuttonon_init' ), 19 );
76 add_action( 'sharing_admin_update', array( $this->settings, 'admin_settings_showbuttonon_callback' ), 19 );
77 add_action( 'admin_init', array( $this->settings, 'add_meta_box' ) );
78 } else {
79 add_filter( 'sharing_meta_box_title', array( $this->settings, 'add_likes_to_sharing_meta_box_title' ) );
80 add_action( 'start_sharing_meta_box_content', array( $this->settings, 'meta_box_content' ) );
81 }
82 } else { // wpcom
83 add_action( 'wpmu_new_blog', array( $this, 'enable_comment_likes' ), 10, 1 );
84 add_action( 'admin_init', array( $this->settings, 'add_meta_box' ) );
85 add_action( 'end_likes_meta_box_content', array( $this->settings, 'sharing_meta_box_content' ) );
86 add_filter( 'likes_meta_box_title', array( $this->settings, 'add_likes_to_sharing_meta_box_title' ) );
87 }
88
89 add_action( 'admin_init', array( $this, 'admin_discussion_likes_settings_init' ) ); // Likes notifications
90
91 add_action( 'admin_bar_menu', array( $this, 'admin_bar_likes' ), 60 );
92
93 add_action( 'wp_enqueue_scripts', array( $this, 'load_styles_register_scripts' ) );
94
95 add_action( 'save_post', array( $this->settings, 'meta_box_save' ) );
96 add_action( 'edit_attachment', array( $this->settings, 'meta_box_save' ) );
97 add_action( 'sharing_global_options', array( $this->settings, 'admin_settings_init' ), 20 );
98 add_action( 'sharing_admin_update', array( $this->settings, 'admin_settings_callback' ), 20 );
99 }
100
101 /**
102 * Set the social_notifications_like option to `on` when the Likes module is activated.
103 *
104 * @since 3.7.0
105 *
106 * @return null
107 */
108 function set_social_notifications_like() {
109 update_option( 'social_notifications_like', 'on' );
110 }
111
112 /**
113 * Delete the social_notifications_like option that was set to `on` on module activation.
114 *
115 * @since 3.7.0
116 *
117 * @return null
118 */
119 function delete_social_notifications_like() {
120 delete_option( 'social_notifications_like' );
121 }
122
123
124 /**
125 * Overrides default configuration url
126 *
127 * @uses admin_url
128 * @return string module settings URL
129 */
130 function jetpack_likes_configuration_url() {
131 return admin_url( 'options-general.php?page=sharing#likes' );
132 }
133
134 /**
135 * Loads Jetpack's CSS on the sharing page so we can use .jetpack-targetable
136 */
137 function load_jp_css() {
138 // Do we really need `admin_styles`? With the new admin UI, it's breaking some bits.
139 // Jetpack::init()->admin_styles();
140 }
141
142 /**
143 * Load scripts and styles for front end.
144 * @return null
145 */
146 function load_styles_register_scripts() {
147 if ( $this->in_jetpack ) {
148 wp_enqueue_style( 'jetpack_likes', plugins_url( 'likes/style.css', __FILE__ ), array(), JETPACK__VERSION );
149 $this->register_scripts();
150 }
151 }
152
153
154 /**
155 * Stub for is_post_likeable, since some wpcom functions call this directly on the class
156 * Are likes enabled for this post?
157 *
158 * @param int $post_id
159 * @return bool
160 */
161 static function is_post_likeable( $post_id = 0 ) {
162 _deprecated_function( __METHOD__, 'jetpack-5.4', 'Jetpack_Likes_Settings()->is_post_likeable' );
163 $settings = new Jetpack_Likes_Settings();
164 return $settings->is_post_likeable( $post_id );
165 }
166
167 /**
168 * Stub for is_likes_visible, since some themes were calling it directly from this class
169 *
170 * @deprecated 5.4
171 * @return bool
172 */
173 function is_likes_visible() {
174 _deprecated_function( __METHOD__, 'jetpack-5.4', 'Jetpack_Likes_Settings()->is_likes_visible' );
175
176 $settings = new Jetpack_Likes_Settings();
177 return $settings->is_likes_visible();
178 }
179
180 /**
181 * Adds in the jetpack-targetable class so when we visit sharing#likes our like settings get highlighted by a yellow box
182 * @param string $html row heading for the sharedaddy "which page" setting
183 * @return string html with the jetpack-targetable class and likes id. tbody gets closed after the like settings
184 */
185 function configuration_target_area( $html = '' ) {
186 $html = "<tbody id='likes' class='jetpack-targetable'>" . $html;
187 return $html;
188 }
189
190 /**
191 * Options to be added to the discussion page (see also admin_settings_init, etc below for Sharing settings page)
192 */
193
194 function admin_discussion_likes_settings_init() {
195 // Add a temporary section, until we can move the setting out of there and with the rest of the email notification settings
196 add_settings_section( 'likes-notifications', __( 'Likes Notifications', 'jetpack' ), array( $this, 'admin_discussion_likes_settings_section' ), 'discussion' );
197 add_settings_field( 'social-notifications', __( 'Email me whenever', 'jetpack' ), array( $this, 'admin_discussion_likes_settings_field' ), 'discussion', 'likes-notifications' );
198 // Register the setting
199 register_setting( 'discussion', 'social_notifications_like', array( $this, 'admin_discussion_likes_settings_validate' ) );
200 }
201
202 function admin_discussion_likes_settings_section() {
203 // Atypical usage here. We emit jquery to move likes notification checkbox to be with the rest of the email notification settings
204 ?>
205 <script type="text/javascript">
206 jQuery( function( $ ) {
207 var table = $( '#social_notifications_like' ).parents( 'table:first' ),
208 header = table.prevAll( 'h2:first' ),
209 newParent = $( '#moderation_notify' ).parent( 'label' ).parent();
210
211 if ( !table.length || !header.length || !newParent.length ) {
212 return;
213 }
214
215 newParent.append( '<br/>' ).append( table.end().parent( 'label' ).siblings().andSelf() );
216 header.remove();
217 table.remove();
218 } );
219 </script>
220 <?php
221 }
222
223 function admin_likes_get_option( $option ) {
224 if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
225 $option_setting = get_blog_option( get_current_blog_id(), $option, 'on' );
226 } else {
227 $option_setting = get_option( $option, 'on' );
228 }
229
230 return intval( 'on' == $option_setting );
231 }
232
233 function admin_discussion_likes_settings_field() {
234 $like = $this->admin_likes_get_option( 'social_notifications_like' );
235 ?>
236 <label><input type="checkbox" id="social_notifications_like" name="social_notifications_like" value="1" <?php checked( $like ); ?> /> <?php esc_html_e( 'Someone likes one of my posts', 'jetpack' ); ?></label>
237 <?php
238 }
239
240 function admin_discussion_likes_settings_validate( $input ) {
241 // If it's not set (was unchecked during form submission) or was set to off (during option update), return 'off'.
242 if ( !$input || 'off' == $input )
243 return 'off';
244
245 // Otherwise, return 'on'.
246 return 'on';
247 }
248
249 function admin_init() {
250 add_filter( 'manage_posts_columns', array( $this, 'add_like_count_column' ) );
251 add_filter( 'manage_pages_columns', array( $this, 'add_like_count_column' ) );
252 add_action( 'manage_posts_custom_column', array( $this, 'likes_edit_column' ), 10, 2 );
253 add_action( 'manage_pages_custom_column', array( $this, 'likes_edit_column' ), 10, 2 );
254 add_action( 'admin_print_styles-edit.php', array( $this, 'load_admin_css' ) );
255 add_action( "admin_print_scripts-edit.php", array( $this, 'enqueue_admin_scripts' ) );
256 }
257
258 function action_init() {
259 if ( is_admin() || ! $this->settings->is_likes_visible() ) {
260 return;
261 }
262
263 if ( ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) ||
264 ( defined( 'APP_REQUEST' ) && APP_REQUEST ) ||
265 ( defined( 'REST_API_REQUEST' ) && REST_API_REQUEST ) ||
266 ( defined( 'COOKIE_AUTH_REQUEST' ) && COOKIE_AUTH_REQUEST ) ||
267 ( defined( 'JABBER_SERVER' ) && JABBER_SERVER ) ) {
268 return;
269 }
270
271 if (
272 class_exists( 'Jetpack_AMP_Support' )
273 && Jetpack_AMP_Support::is_amp_request()
274 ) {
275 return;
276 }
277
278 if ( $this->in_jetpack ) {
279 add_filter( 'the_content', array( &$this, 'post_likes' ), 30, 1 );
280 add_filter( 'the_excerpt', array( &$this, 'post_likes' ), 30, 1 );
281
282 } else {
283 add_filter( 'post_flair', array( &$this, 'post_likes' ), 30, 1 );
284 add_filter( 'post_flair_block_css', array( $this, 'post_flair_service_enabled_like' ) );
285
286 wp_enqueue_script( 'postmessage', '/wp-content/js/postmessage.js', array( 'jquery' ), JETPACK__VERSION, true );
287 wp_enqueue_script( 'jetpack_resize', '/wp-content/js/jquery/jquery.jetpack-resize.js', array( 'jquery' ), JETPACK__VERSION, true );
288 wp_enqueue_script( 'jetpack_likes_queuehandler', plugins_url( 'queuehandler.js' , __FILE__ ), array( 'jquery', 'postmessage', 'jetpack_resize' ), JETPACK__VERSION, true );
289 wp_enqueue_style( 'jetpack_likes', plugins_url( 'jetpack-likes.css', __FILE__ ), array(), JETPACK__VERSION );
290 }
291 }
292
293 /**
294 * Register scripts
295 */
296 function register_scripts() {
297 wp_register_script(
298 'postmessage',
299 Assets::get_file_url_for_environment( '_inc/build/postmessage.min.js', '_inc/postmessage.js' ),
300 array( 'jquery' ),
301 JETPACK__VERSION,
302 true
303 );
304 wp_register_script(
305 'jetpack_resize',
306 Assets::get_file_url_for_environment(
307 '_inc/build/jquery.jetpack-resize.min.js',
308 '_inc/jquery.jetpack-resize.js'
309 ),
310 array( 'jquery' ),
311 JETPACK__VERSION,
312 true
313 );
314 wp_register_script(
315 'jetpack_likes_queuehandler',
316 Assets::get_file_url_for_environment(
317 '_inc/build/likes/queuehandler.min.js',
318 'modules/likes/queuehandler.js'
319 ),
320 array( 'jquery', 'postmessage', 'jetpack_resize' ),
321 JETPACK__VERSION,
322 true
323 );
324 }
325
326 /**
327 * Load the CSS needed for the wp-admin area.
328 */
329 function load_admin_css() {
330 ?>
331 <style type="text/css">
332 .vers img { display: none; }
333 .metabox-prefs .vers img { display: inline; }
334 .fixed .column-likes { width: 5.5em; padding: 8px 0; text-align: left; }
335 .fixed .column-stats { width: 5em; }
336 .fixed .column-likes .post-com-count {
337 -webkit-box-sizing: border-box;
338 -moz-box-sizing: border-box;
339 box-sizing: border-box;
340 display: inline-block;
341 padding: 0 8px;
342 height: 2em;
343 margin-top: 5px;
344 -webkit-border-radius: 5px;
345 border-radius: 5px;
346 background-color: #72777C;
347 color: #FFF;
348 font-size: 11px;
349 line-height: 21px;
350 }
351 .fixed .column-likes .post-com-count::after { border: none !important; }
352 .fixed .column-likes .post-com-count:hover { background-color: #0073AA; }
353 .fixed .column-likes .vers:before {
354 font: normal 20px/1 dashicons;
355 content: '\f155';
356 speak: none;
357 -webkit-font-smoothing: antialiased;
358 -moz-osx-font-smoothing: grayscale;
359 }
360 @media screen and (max-width: 782px) {
361 .fixed .column-likes {
362 display: none;
363 }
364 }
365 </style>
366 <?php
367 }
368
369 /**
370 * Load the JS required for loading the like counts.
371 */
372 function enqueue_admin_scripts() {
373 if ( empty( $_GET['post_type'] ) || 'post' == $_GET['post_type'] || 'page' == $_GET['post_type'] ) {
374 if ( $this->in_jetpack ) {
375 wp_enqueue_script(
376 'likes-post-count',
377 Assets::get_file_url_for_environment(
378 '_inc/build/likes/post-count.min.js',
379 'modules/likes/post-count.js'
380 ),
381 array( 'jquery' ),
382 JETPACK__VERSION
383 );
384 wp_enqueue_script(
385 'likes-post-count-jetpack',
386 Assets::get_file_url_for_environment(
387 '_inc/build/likes/post-count-jetpack.min.js',
388 'modules/likes/post-count-jetpack.js'
389 ),
390 array( 'likes-post-count' ),
391 JETPACK__VERSION
392 );
393 } else {
394 wp_enqueue_script( 'jquery.wpcom-proxy-request', "/wp-content/js/jquery/jquery.wpcom-proxy-request.js", array('jquery'), NULL, true );
395 wp_enqueue_script( 'likes-post-count', plugins_url( 'likes/post-count.js', dirname( __FILE__ ) ), array( 'jquery' ), JETPACK__VERSION );
396 wp_enqueue_script( 'likes-post-count-wpcom', plugins_url( 'likes/post-count-wpcom.js', dirname( __FILE__ ) ), array( 'likes-post-count', 'jquery.wpcom-proxy-request' ), JETPACK__VERSION );
397 }
398 }
399 }
400
401 /**
402 * Add "Likes" column data to the post edit table in wp-admin.
403 *
404 * @param string $column_name
405 * @param int $post_id
406 */
407 function likes_edit_column( $column_name, $post_id ) {
408 if ( 'likes' == $column_name ) {
409
410 if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
411 $blog_id = get_current_blog_id();
412 } else {
413 $blog_id = Jetpack_Options::get_option( 'id' );
414 }
415
416 $permalink = get_permalink( get_the_ID() ); ?>
417 <a title="" data-post-id="<?php echo (int) $post_id; ?>" class="post-com-count post-like-count" id="post-like-count-<?php echo (int) $post_id; ?>" data-blog-id="<?php echo (int) $blog_id; ?>" href="<?php echo esc_url( $permalink ); ?>#like-<?php echo (int) $post_id; ?>">
418 <span class="comment-count">0</span>
419 </a>
420 <?php
421 }
422 }
423
424 /**
425 * Add a "Likes" column header to the post edit table in wp-admin.
426 *
427 * @param array $columns
428 * @return array
429 */
430 function add_like_count_column( $columns ) {
431 $date = $columns['date'];
432 unset( $columns['date'] );
433
434 $columns['likes'] = '<span class="vers"><img title="' . esc_attr__( 'Likes', 'jetpack' ) . '" alt="' . esc_attr__( 'Likes', 'jetpack' ) . '" src="//s0.wordpress.com/i/like-grey-icon.png" /><span class="screen-reader-text">' . __( 'Likes', 'jetpack' ) . '</span></span>';
435 $columns['date'] = $date;
436
437 return $columns;
438 }
439
440 function post_likes( $content ) {
441 $post_id = get_the_ID();
442
443 if ( ! is_numeric( $post_id ) || ! $this->settings->is_likes_visible() )
444 return $content;
445
446 if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
447 $blog_id = get_current_blog_id();
448 $bloginfo = get_blog_details( (int) $blog_id );
449 $domain = $bloginfo->domain;
450 } else {
451 $blog_id = Jetpack_Options::get_option( 'id' );
452 $url = home_url();
453 $url_parts = wp_parse_url( $url );
454 $domain = $url_parts['host'];
455 }
456 // make sure to include the scripts before the iframe otherwise weird things happen
457 add_action( 'wp_footer', 'jetpack_likes_master_iframe', 21 );
458
459 /**
460 * if the same post appears more then once on a page the page goes crazy
461 * we need a slightly more unique id / name for the widget wrapper.
462 */
463 $uniqid = uniqid();
464
465 $src = sprintf( 'https://widgets.wp.com/likes/#blog_id=%1$d&amp;post_id=%2$d&amp;origin=%3$s&amp;obj_id=%1$d-%2$d-%4$s', $blog_id, $post_id, $domain, $uniqid );
466 $name = sprintf( 'like-post-frame-%1$d-%2$d-%3$s', $blog_id, $post_id, $uniqid );
467 $wrapper = sprintf( 'like-post-wrapper-%1$d-%2$d-%3$s', $blog_id, $post_id, $uniqid );
468 $headline = sprintf(
469 /** This filter is already documented in modules/sharedaddy/sharing-service.php */
470 apply_filters( 'jetpack_sharing_headline_html', '<h3 class="sd-title">%s</h3>', esc_html__( 'Like this:', 'jetpack' ), 'likes' ),
471 esc_html__( 'Like this:', 'jetpack' )
472 );
473
474 $html = "<div class='sharedaddy sd-block sd-like jetpack-likes-widget-wrapper jetpack-likes-widget-unloaded' id='$wrapper' data-src='$src' data-name='$name'>";
475 $html .= $headline;
476 $html .= "<div class='likes-widget-placeholder post-likes-widget-placeholder' style='height: 55px;'><span class='button'><span>" . esc_html__( 'Like', 'jetpack' ) . '</span></span> <span class="loading">' . esc_html__( 'Loading...', 'jetpack' ) . '</span></div>';
477 $html .= "<span class='sd-text-color'></span><a class='sd-link-color'></a>";
478 $html .= '</div>';
479
480 // Let's make sure that the script is enqueued
481 wp_enqueue_script( 'jetpack_likes_queuehandler' );
482
483 return $content . $html;
484 }
485
486 function post_flair_service_enabled_like( $classes ) {
487 $classes[] = 'sd-like-enabled';
488 return $classes;
489 }
490
491 function is_admin_bar_button_visible() {
492 global $wp_admin_bar;
493
494 if ( ! is_object( $wp_admin_bar ) )
495 return false;
496
497 if ( ( ! is_singular( 'post' ) && ! is_attachment() && ! is_page() ) )
498 return false;
499
500 if ( ! $this->settings->is_likes_visible() )
501 return false;
502
503 if ( ! $this->settings->is_post_likeable() )
504 return false;
505
506 /**
507 * Filters whether the Like button is enabled in the admin bar.
508 *
509 * @module likes
510 *
511 * @since 2.2.0
512 *
513 * @param bool true Should the Like button be visible in the Admin bar. Default to true.
514 */
515 return (bool) apply_filters( 'jetpack_admin_bar_likes_enabled', true );
516 }
517
518 function admin_bar_likes() {
519 global $wp_admin_bar;
520
521 $post_id = get_the_ID();
522
523 if ( ! is_numeric( $post_id ) || ! $this->is_admin_bar_button_visible() ) {
524 return;
525 }
526
527 $protocol = 'http';
528 if ( is_ssl() )
529 $protocol = 'https';
530
531 if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
532 $blog_id = get_current_blog_id();
533 $bloginfo = get_blog_details( (int) $blog_id );
534 $domain = $bloginfo->domain;
535 } else {
536 $blog_id = Jetpack_Options::get_option( 'id' );
537 $url = home_url();
538 $url_parts = wp_parse_url( $url );
539 $domain = $url_parts['host'];
540 }
541 // make sure to include the scripts before the iframe otherwise weird things happen
542 add_action( 'wp_footer', 'jetpack_likes_master_iframe', 21 );
543
544 $src = sprintf( 'https://widgets.wp.com/likes/#blog_id=%2$d&amp;post_id=%3$d&amp;origin=%1$s://%4$s', $protocol, $blog_id, $post_id, $domain );
545
546 $html = "<iframe class='admin-bar-likes-widget jetpack-likes-widget' scrolling='no' frameBorder='0' name='admin-bar-likes-widget' src='$src'></iframe>";
547
548 $node = array(
549 'id' => 'admin-bar-likes-widget',
550 'meta' => array(
551 'html' => $html
552 )
553 );
554
555 $wp_admin_bar->add_node( $node );
556 }
557 }
558
559 /**
560 * Callback to get the value for the jetpack_likes_enabled field.
561 *
562 * Warning: this behavior is somewhat complicated!
563 * When the switch_like_status post_meta is unset, we follow the global setting in Sharing.
564 * When it is set to 0, we disable likes on the post, regardless of the global setting.
565 * When it is set to 1, we enable likes on the post, regardless of the global setting.
566 */
567 function jetpack_post_likes_get_value( array $post ) {
568 $post_likes_switched = get_post_meta( $post['id'], 'switch_like_status', true );
569
570 /** This filter is documented in modules/jetpack-likes-settings.php */
571 $sitewide_likes_enabled = (bool) apply_filters( 'wpl_is_enabled_sitewide', ! get_option( 'disabled_likes' ) );
572
573 // an empty string: post meta was not set, so go with the global setting
574 if ( "" === $post_likes_switched ) {
575 return $sitewide_likes_enabled;
576 }
577
578 // user overrode the global setting to disable likes
579 elseif ( "0" === $post_likes_switched ) {
580 return false;
581 }
582
583 // user overrode the global setting to enable likes
584 elseif ( "1" === $post_likes_switched ) {
585 return true;
586 }
587
588 // no default fallback, let's stay explicit
589 }
590
591 /**
592 * Callback to set switch_like_status post_meta when jetpack_likes_enabled is updated.
593 *
594 * Warning: this behavior is somewhat complicated!
595 * When the switch_like_status post_meta is unset, we follow the global setting in Sharing.
596 * When it is set to 0, we disable likes on the post, regardless of the global setting.
597 * When it is set to 1, we enable likes on the post, regardless of the global setting.
598 */
599 function jetpack_post_likes_update_value( $enable_post_likes, $post_object ) {
600 /** This filter is documented in modules/jetpack-likes-settings.php */
601 $sitewide_likes_enabled = (bool) apply_filters( 'wpl_is_enabled_sitewide', ! get_option( 'disabled_likes' ) );
602
603 $should_switch_status = $enable_post_likes !== $sitewide_likes_enabled;
604
605 if ( $should_switch_status ) {
606 // set the meta to 0 if the user wants to disable likes, 1 if user wants to enable
607 $switch_like_status = ( $enable_post_likes ? 1 : 0 );
608 return update_post_meta( $post_object->ID, 'switch_like_status', $switch_like_status );
609 } else {
610 // unset the meta otherwise
611 return delete_post_meta( $post_object->ID, 'switch_like_status' );
612 }
613 }
614
615 /**
616 * Add Likes post_meta to the REST API Post response.
617 *
618 * @action rest_api_init
619 * @uses register_rest_field
620 * @link https://developer.wordpress.org/rest-api/extending-the-rest-api/modifying-responses/
621 */
622 function jetpack_post_likes_register_rest_field() {
623 $post_types = get_post_types( array( 'public' => true ) );
624 foreach ( $post_types as $post_type ) {
625 register_rest_field(
626 $post_type,
627 'jetpack_likes_enabled',
628 array(
629 'get_callback' => 'jetpack_post_likes_get_value',
630 'update_callback' => 'jetpack_post_likes_update_value',
631 'schema' => array(
632 'description' => __( 'Are Likes enabled?', 'jetpack' ),
633 'type' => 'boolean',
634 ),
635 )
636 );
637
638 /**
639 * Ensures all public internal post-types support `likes`
640 * This feature support flag is used by the REST API and Gutenberg.
641 */
642 add_post_type_support( $post_type, 'jetpack-post-likes' );
643 }
644 }
645
646 // Add Likes post_meta to the REST API Post response.
647 add_action( 'rest_api_init', 'jetpack_post_likes_register_rest_field' );
648
649 // Some CPTs (e.g. Jetpack portfolios and testimonials) get registered with
650 // restapi_theme_init because they depend on theme support, so let's also hook to that
651 add_action( 'restapi_theme_init', 'jetpack_post_likes_register_rest_field', 20 );
652
653 /**
654 * Set the Likes and Sharing Gutenberg extension availability
655 */
656 function jetpack_post_likes_set_extension_availability() {
657 Jetpack_Gutenberg::set_extension_available( 'likes' );
658 }
659
660 add_action( 'jetpack_register_gutenberg_extensions', 'jetpack_post_likes_set_extension_availability' );
661
662 Jetpack_Likes::init();
663