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<?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName /** * Module Name: Likes * Module Description: Give visitors an easy way to show they appreciate your content. * First Introduced: 2.2 * Sort Order: 23 * Requires Connection: Yes * Auto Activate: No * Module Tags: Social * Feature: Engagement * Additional Search Queries: like, likes, wordpress.com * * @package automattic/jetpack */ /** * NOTE: While the front-end behavior currently varies, try to keep the data * model here the same as on wpcom to facilitate Simple→Atomic moves and * possible future work to recombine the front-ends. */ // phpcs:disable Universal.Files.SeparateFunctionsFromOO.Mixed -- TODO: Move classes to appropriately-named class files. use Automattic\Jetpack\Assets; Assets::add_resource_hint( array( '//widgets.wp.com', '//s0.wp.com', '//0.gravatar.com', '//1.gravatar.com', '//2.gravatar.com', ), 'dns-prefetch' ); require_once __DIR__ . '/likes/jetpack-likes-master-iframe.php'; require_once __DIR__ . '/likes/jetpack-likes-settings.php'; /** * Jetpack Like Class */ class Jetpack_Likes { /** * Jetpack_Likes_Settings object * * @var Jetpack_Likes_Settings */ public $settings; /** * Initialize class */ public static function init() { static $instance = null; if ( ! $instance ) { $instance = new Jetpack_Likes(); } return $instance; } /** * Constructs Likes class */ public function __construct() { $this->settings = new Jetpack_Likes_Settings(); // We need to run on wp hook rather than init because we check is_amp_endpoint() // when bootstrapping hooks. add_action( 'wp', array( $this, 'action_init' ), 99 ); add_action( 'admin_init', array( $this, 'admin_init' ) ); add_action( 'jetpack_activate_module_likes', array( $this, 'set_social_notifications_like' ) ); add_action( 'jetpack_deactivate_module_likes', array( $this, 'delete_social_notifications_like' ) ); Jetpack::enable_module_configurable( __FILE__ ); add_filter( 'jetpack_module_configuration_url_likes', array( $this, 'jetpack_likes_configuration_url' ) ); add_action( 'admin_print_scripts-settings_page_sharing', array( $this, 'load_jp_css' ) ); add_filter( 'sharing_show_buttons_on_row_start', array( $this, 'configuration_target_area' ) ); $active = Jetpack::get_active_modules(); if ( in_array( 'publicize', $active, true ) && ! in_array( 'sharedaddy', $active, true ) ) { // we have a sharing page but not the global options area. add_action( 'pre_admin_screen_sharing', array( $this->settings, 'sharing_block' ), 20 ); add_action( 'pre_admin_screen_sharing', array( $this->settings, 'updated_message' ), -10 ); } if ( ! in_array( 'sharedaddy', $active, true ) ) { add_action( 'admin_init', array( $this->settings, 'process_update_requests_if_sharedaddy_not_loaded' ) ); add_action( 'sharing_global_options', array( $this->settings, 'admin_settings_showbuttonon_init' ), 19 ); add_action( 'sharing_admin_update', array( $this->settings, 'admin_settings_showbuttonon_callback' ), 19 ); add_action( 'admin_init', array( $this->settings, 'add_meta_box' ) ); } else { add_filter( 'sharing_meta_box_title', array( $this->settings, 'add_likes_to_sharing_meta_box_title' ) ); add_action( 'start_sharing_meta_box_content', array( $this->settings, 'meta_box_content' ) ); } add_action( 'admin_init', array( $this, 'admin_discussion_likes_settings_init' ) ); // Likes notifications. add_action( 'wp_enqueue_scripts', array( $this, 'load_styles_register_scripts' ) ); add_action( 'save_post', array( $this->settings, 'meta_box_save' ) ); add_action( 'edit_attachment', array( $this->settings, 'meta_box_save' ) ); add_action( 'sharing_global_options', array( $this->settings, 'admin_settings_init' ), 20 ); add_action( 'sharing_admin_update', array( $this->settings, 'admin_settings_callback' ), 20 ); } /** * Set the social_notifications_like option to `on` when the Likes module is activated. * * @since 3.7.0 */ public function set_social_notifications_like() { update_option( 'social_notifications_like', 'on' ); } /** * Delete the social_notifications_like option that was set to `on` on module activation. * * @since 3.7.0 */ public function delete_social_notifications_like() { delete_option( 'social_notifications_like' ); } /** * Overrides default configuration url * * @uses admin_url * @return string module settings URL */ public function jetpack_likes_configuration_url() { return admin_url( 'options-general.php?page=sharing#likes' ); } /** * Loads Jetpack's CSS on the sharing page so we can use .jetpack-targetable */ public function load_jp_css() { /** * Do we really need `admin_styles`? With the new admin UI, it's breaking some bits. * Jetpack::init()->admin_styles(); */ } /** * Load scripts and styles for front end. */ public function load_styles_register_scripts() { wp_enqueue_style( 'jetpack_likes', plugins_url( 'likes/style.css', __FILE__ ), array(), JETPACK__VERSION ); wp_register_script( 'jetpack_likes_queuehandler', Assets::get_file_url_for_environment( '_inc/build/likes/queuehandler.min.js', 'modules/likes/queuehandler.js' ), array(), JETPACK__VERSION, true ); } /** * Adds in the jetpack-targetable class so when we visit sharing#likes our like settings get highlighted by a yellow box * * @param string $html row heading for the sharedaddy "which page" setting. * @return string $html with the jetpack-targetable class and likes id. tbody gets closed after the like settings */ public function configuration_target_area( $html = '' ) { $html = "<tbody id='likes' class='jetpack-targetable'>" . $html; return $html; } /** * Options to be added to the discussion page (see also admin_settings_init, etc below for Sharing settings page) */ public function admin_discussion_likes_settings_init() { // Add a temporary section, until we can move the setting out of there and with the rest of the email notification settings. add_settings_section( 'likes-notifications', __( 'Likes Notifications', 'jetpack' ), array( $this, 'admin_discussion_likes_settings_section' ), 'discussion' ); add_settings_field( 'social-notifications', __( 'Email me whenever', 'jetpack' ), array( $this, 'admin_discussion_likes_settings_field' ), 'discussion', 'likes-notifications' ); // Register the setting. register_setting( 'discussion', 'social_notifications_like', array( $this, 'admin_discussion_likes_settings_validate' ) ); } /** Add email notification options to WordPress discussion settings */ public function admin_discussion_likes_settings_section() { // Atypical usage here. We emit jquery to move likes notification checkbox to be with the rest of the email notification settings. ?> <script type="text/javascript"> jQuery( function( $ ) { var table = $( '#social_notifications_like' ).parents( 'table:first' ), header = table.prevAll( 'h2:first' ), newParent = $( '#moderation_notify' ).parent( 'label' ).parent(); if ( !table.length || !header.length || !newParent.length ) { return; } newParent.append( '<br/>' ).append( table.end().parent( 'label' ).siblings().andSelf() ); header.remove(); table.remove(); } ); </script> <?php } /** Check if email notifications for likes is on or off. * * @param string $option - which option we're checking (social_notifications_like). */ public function admin_likes_get_option( $option ) { $option_setting = get_option( $option, 'on' ); return (int) ( 'on' === $option_setting ); } /** Display email notification for likes setting in WordPress' discussion settings. */ public function admin_discussion_likes_settings_field() { $like = $this->admin_likes_get_option( 'social_notifications_like' ); ?> <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> <?php } /** * Validate email notification settings. * * @param string $input - determines if checbox is on or off. */ public function admin_discussion_likes_settings_validate( $input ) { // If it's not set (was unchecked during form submission) or was set to off (during option update), return 'off'. if ( ! $input || 'off' === $input ) { return 'off'; } // Otherwise return 'on'. return 'on'; } /** Initialize admin settings */ public function admin_init() { add_filter( 'manage_posts_columns', array( $this, 'add_like_count_column' ) ); add_filter( 'manage_pages_columns', array( $this, 'add_like_count_column' ) ); add_action( 'manage_posts_custom_column', array( $this, 'likes_edit_column' ), 10, 2 ); add_action( 'manage_pages_custom_column', array( $this, 'likes_edit_column' ), 10, 2 ); add_action( 'admin_print_styles-edit.php', array( $this, 'load_admin_css' ) ); add_action( 'admin_print_scripts-edit.php', array( $this, 'enqueue_admin_scripts' ) ); } /** Initialize action */ public function action_init() { /* * Only check if the module is enabled here because * we are not currently in The Loop and do not yet have access to check * the switch_like_status post meta flag for the post to be loaded. */ if ( is_admin() || ! $this->settings->is_likes_module_enabled() ) { return; } if ( ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) || ( defined( 'APP_REQUEST' ) && APP_REQUEST ) || ( defined( 'REST_API_REQUEST' ) && REST_API_REQUEST ) || ( defined( 'COOKIE_AUTH_REQUEST' ) && COOKIE_AUTH_REQUEST ) || ( defined( 'JABBER_SERVER' ) && JABBER_SERVER ) ) { return; } if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() ) { return; } add_filter( 'the_content', array( $this, 'post_likes' ), 30, 1 ); add_filter( 'the_excerpt', array( $this, 'post_likes' ), 30, 1 ); } /** * Load the CSS needed for the wp-admin area. */ public function load_admin_css() { ?> <style type="text/css"> .vers img { display: none; } .metabox-prefs .vers img { display: inline; } .fixed .column-likes { width: 5.5em; padding: 8px 0; text-align: left; } .fixed .column-stats { width: 5em; } .fixed .column-likes .post-com-count { -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; display: inline-block; padding: 0 8px; height: 2em; margin-top: 5px; -webkit-border-radius: 5px; border-radius: 5px; background-color: #787c82; color: #FFF; font-size: 11px; line-height: 21px; } .fixed .column-likes .post-com-count::after { border: none !important; } .fixed .column-likes .post-com-count:hover { background-color: #2271b1; } .fixed .column-likes .vers:before { font: normal 20px/1 dashicons; content: '\f155'; speak: none; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; } @media screen and (max-width: 782px) { .fixed .column-likes { display: none; } } </style> <?php } /** * Load the JS required for loading the like counts. */ public function enqueue_admin_scripts() { if ( empty( $_GET['post_type'] ) || 'post' === $_GET['post_type'] || 'page' === $_GET['post_type'] ) { //phpcs:ignore WordPress.Security.NonceVerification.Recommended wp_enqueue_script( 'likes-post-count', Assets::get_file_url_for_environment( '_inc/build/likes/post-count.min.js', 'modules/likes/post-count.js' ), array( 'jquery' ), JETPACK__VERSION, $in_footer = false ); wp_enqueue_script( 'likes-post-count-jetpack', Assets::get_file_url_for_environment( '_inc/build/likes/post-count-jetpack.min.js', 'modules/likes/post-count-jetpack.js' ), array( 'jquery', 'likes-post-count' ), JETPACK__VERSION, $in_footer = false ); } } /** * Add "Likes" column data to the post edit table in wp-admin. * * @param string $column_name - name of the column. * @param int $post_id - the post id. */ public function likes_edit_column( $column_name, $post_id ) { if ( 'likes' === $column_name ) { $blog_id = Jetpack_Options::get_option( 'id' ); $permalink = get_permalink( get_the_ID() ); ?> <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; ?>"> <span class="comment-count">0</span> </a> <?php } } /** * Add a "Likes" column header to the post edit table in wp-admin. * * @param array $columns - array of columns in wp-admin. */ public function add_like_count_column( $columns ) { $date = $columns['date']; unset( $columns['date'] ); $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>'; $columns['date'] = $date; return $columns; } /** * Append like button to content. * * @param string $content - content of the page. */ public function post_likes( $content ) { global $wp_current_filter; $post_id = get_the_ID(); if ( ! is_numeric( $post_id ) || ! $this->settings->is_likes_visible() ) { return $content; } // Do not output Likes on requests for ActivityPub requests. if ( function_exists( '\Activitypub\is_activitypub_request' ) && \Activitypub\is_activitypub_request() ) { return $content; } // Ensure we don't display like button on post excerpts that are hooked inside the post content if ( in_array( 'the_excerpt', (array) $wp_current_filter, true ) && in_array( 'the_content', (array) $wp_current_filter, true ) ) { return $content; } $blog_id = Jetpack_Options::get_option( 'id' ); $url = home_url(); $url_parts = wp_parse_url( $url ); $domain = $url_parts['host']; // Make sure to include the scripts before the iframe otherwise weird things happen. add_action( 'wp_footer', 'jetpack_likes_master_iframe', 21 ); /** * If the same post appears more then once on a page the page goes crazy * we need a slightly more unique id / name for the widget wrapper. */ $uniqid = uniqid(); /** * Enable an alternate Likes layout. * * @since 12.9 * * @module likes * * @param bool $new_layout Enable the new Likes layout. False by default. */ $new_layout = apply_filters( 'likes_new_layout', true ) ? '&n=1' : ''; $src = sprintf( 'https://widgets.wp.com/likes/?ver=%1$s#blog_id=%2$d&post_id=%3$d&origin=%4$s&obj_id=%2$d-%3$d-%5$s%6$s', rawurlencode( JETPACK__VERSION ), $blog_id, $post_id, $domain, $uniqid, $new_layout ); $name = sprintf( 'like-post-frame-%1$d-%2$d-%3$s', $blog_id, $post_id, $uniqid ); $wrapper = sprintf( 'like-post-wrapper-%1$d-%2$d-%3$s', $blog_id, $post_id, $uniqid ); $headline = sprintf( /** This filter is already documented in modules/sharedaddy/sharing-service.php */ apply_filters( 'jetpack_sharing_headline_html', '<h3 class="sd-title">%s</h3>', esc_html__( 'Like this:', 'jetpack' ), 'likes' ), esc_html__( 'Like this:', 'jetpack' ) ); $title = esc_html__( 'Like or Reblog', 'jetpack' ); $html = "<div class='sharedaddy sd-block sd-like jetpack-likes-widget-wrapper jetpack-likes-widget-unloaded' id='$wrapper' data-src='$src' data-name='$name' data-title='$title'>"; $html .= $headline; $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>'; $html .= "<span class='sd-text-color'></span><a class='sd-link-color'></a>"; $html .= '</div>'; // Let's make sure that the script is enqueued. wp_enqueue_script( 'jetpack_likes_queuehandler' ); return $content . $html; } } /** * Callback to get the value for the jetpack_likes_enabled field. * * Warning: this behavior is somewhat complicated! * When the switch_like_status post_meta is unset, we follow the global setting in Sharing. * When it is set to 0, we disable likes on the post, regardless of the global setting. * When it is set to 1, we enable likes on the post, regardless of the global setting. * * @param array $post - post data we're checking. * * @return bool */ function jetpack_post_likes_get_value( array $post ) { if ( ! isset( $post['id'] ) ) { return false; } $post_likes_switched = get_post_meta( $post['id'], 'switch_like_status', true ); /** This filter is documented in modules/jetpack-likes-settings.php */ $sitewide_likes_enabled = (bool) apply_filters( 'wpl_is_enabled_sitewide', ! get_option( 'disabled_likes' ) ); // An empty string: post meta was not set, so go with the global setting. if ( '' === $post_likes_switched ) { return $sitewide_likes_enabled; } elseif ( '0' === $post_likes_switched ) { // User overrode the global setting to disable likes. return false; } elseif ( '1' === $post_likes_switched ) { // User overrode the global setting to enable likes. return true; } // No default fallback, let's stay explicit. } /** * Callback to set switch_like_status post_meta when jetpack_likes_enabled is updated. * * Warning: this behavior is somewhat complicated! * When the switch_like_status post_meta is unset, we follow the global setting in Sharing. * When it is set to 0, we disable likes on the post, regardless of the global setting. * When it is set to 1, we enable likes on the post, regardless of the global setting. * * @param bool $enable_post_likes - checks if post likes are enabled. * @param object $post_object - object containing post data. */ function jetpack_post_likes_update_value( $enable_post_likes, $post_object ) { /** This filter is documented in modules/jetpack-likes-settings.php */ $sitewide_likes_enabled = (bool) apply_filters( 'wpl_is_enabled_sitewide', ! get_option( 'disabled_likes' ) ); $should_switch_status = $enable_post_likes !== $sitewide_likes_enabled; if ( $should_switch_status ) { // Set the meta to 0 if the user wants to disable likes, 1 if user wants to enable. $switch_like_status = ( $enable_post_likes ? 1 : 0 ); return update_post_meta( $post_object->ID, 'switch_like_status', $switch_like_status ); } else { // Unset the meta otherwise. return delete_post_meta( $post_object->ID, 'switch_like_status' ); } } /** * Add Likes post_meta to the REST API Post response. * * @action rest_api_init * @uses register_rest_field * @link https://developer.wordpress.org/rest-api/extending-the-rest-api/modifying-responses/ */ function jetpack_post_likes_register_rest_field() { $post_types = get_post_types( array( 'public' => true ) ); foreach ( $post_types as $post_type ) { register_rest_field( $post_type, 'jetpack_likes_enabled', array( 'get_callback' => 'jetpack_post_likes_get_value', 'update_callback' => 'jetpack_post_likes_update_value', 'schema' => array( 'description' => __( 'Are Likes enabled?', 'jetpack' ), 'type' => 'boolean', ), ) ); /** * Ensures all public internal post-types support `likes` * This feature support flag is used by the REST API and Gutenberg. */ add_post_type_support( $post_type, 'jetpack-post-likes' ); } } // Add Likes post_meta to the REST API Post response. add_action( 'rest_api_init', 'jetpack_post_likes_register_rest_field' ); // Some CPTs (e.g. Jetpack portfolios and testimonials) get registered with // restapi_theme_init because they depend on theme support, so let's also hook to that. add_action( 'restapi_theme_init', 'jetpack_post_likes_register_rest_field', 20 ); Jetpack_Likes::init();
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