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1<?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
2/**
3 * Module Name: Comment Likes
4 * Module Description: Enable visitors to like individual comments and boost engagement.
5 * Sort Order: 39
6 * Recommendation Order: 17
7 * First Introduced: 5.1
8 * Requires Connection: Yes
9 * Auto Activate: No
10 * Module Tags: Social
11 * Additional Search Queries: like widget, like button, like, likes
12 *
13 * @package automattic/jetpack
14 */
15
16use Automattic\Jetpack\Assets;
17
18if ( ! defined( 'ABSPATH' ) ) {
19    exit( 0 );
20}
21
22Assets::add_resource_hint( '//widgets.wp.com', 'dns-prefetch' );
23
24require_once __DIR__ . '/likes/jetpack-likes-master-iframe.php';
25require_once __DIR__ . '/likes/jetpack-likes-settings.php';
26
27/**
28 * Jetpack Comment Like Class
29 */
30class Jetpack_Comment_Likes {
31
32    /**
33     * Jetpack_Likes_Settings object
34     *
35     * @var Jetpack_Likes_Settings
36     */
37    public $settings;
38
39    /**
40     * Blog ID
41     *
42     * @var int
43     */
44    public $blog_id;
45
46    /**
47     * Site home URL domain
48     *
49     * @var string
50     */
51    public $domain;
52
53    /**
54     * Initialize comment like module
55     */
56    public static function init() {
57        static $instance = null;
58
59        if ( ! $instance ) {
60            $instance = new Jetpack_Comment_Likes();
61        }
62
63        return $instance;
64    }
65
66    /**
67     * Construct comment like module.
68     */
69    private function __construct() {
70        $this->settings = new Jetpack_Likes_Settings();
71        $this->blog_id  = Jetpack_Options::get_option( 'id' );
72        $url_parts      = wp_parse_url( home_url() );
73
74        // Abort if domain can't be determined.
75        if ( ! $url_parts || ! isset( $url_parts['host'] ) ) {
76            return;
77        }
78        $this->domain = $url_parts['host'];
79
80        add_action( 'template_redirect', array( $this, 'frontend_init' ) );
81        add_action( 'admin_init', array( $this, 'admin_init' ) );
82
83        if ( ! Jetpack::is_module_active( 'likes' ) ) {
84            $active = Jetpack::get_active_modules();
85
86            if ( in_array( 'publicize', $active, true ) && ! in_array( 'sharedaddy', $active, true ) ) {
87                // we have a sharing page but not the global options area.
88                add_action( 'pre_admin_screen_sharing', array( $this->settings, 'sharing_block' ), 20 );
89                add_action( 'pre_admin_screen_sharing', array( $this->settings, 'updated_message' ), -10 );
90            }
91
92            if ( ! in_array( 'sharedaddy', $active, true ) ) {
93                add_action( 'admin_init', array( $this->settings, 'process_update_requests_if_sharedaddy_not_loaded' ) );
94                add_action( 'sharing_global_options', array( $this->settings, 'admin_settings_showbuttonon_init' ), 19 );
95                add_action( 'sharing_admin_update', array( $this->settings, 'admin_settings_showbuttonon_callback' ), 19 );
96                add_action( 'admin_init', array( $this->settings, 'add_meta_box' ) );
97            } else {
98                add_filter( 'sharing_meta_box_title', array( $this->settings, 'add_likes_to_sharing_meta_box_title' ) );
99                add_action( 'start_sharing_meta_box_content', array( $this->settings, 'meta_box_content' ) );
100            }
101
102            add_action( 'save_post', array( $this->settings, 'meta_box_save' ) );
103            add_action( 'edit_attachment', array( $this->settings, 'meta_box_save' ) );
104            add_action( 'sharing_global_options', array( $this->settings, 'admin_settings_init' ), 20 );
105            add_action( 'sharing_admin_update', array( $this->settings, 'admin_settings_callback' ), 20 );
106        }
107    }
108
109    /**
110     * Initialize admin section
111     */
112    public function admin_init() {
113        add_filter( 'manage_edit-comments_columns', array( $this, 'add_like_count_column' ) );
114        add_action( 'manage_comments_custom_column', array( $this, 'comment_likes_edit_column' ), 10, 2 );
115        add_action( 'admin_print_styles-edit-comments.php', array( $this, 'enqueue_admin_styles_scripts' ) );
116    }
117
118    /**
119     * Displays number of comment likes in comment admin page.
120     *
121     * @param string $column_name name of the column.
122     * @param int    $comment_id ID of the comment.
123     */
124    public function comment_likes_edit_column( $column_name, $comment_id ) {
125        if ( 'comment_likes' !== $column_name ) {
126            return;
127        }
128
129        $permalink = get_permalink( get_the_ID() );
130        ?>
131        <a
132        data-comment-id="<?php echo absint( $comment_id ); ?>"
133        data-blog-id="<?php echo absint( $this->blog_id ); ?>"
134        class="comment-like-count"
135        id="comment-like-count-<?php echo absint( $comment_id ); ?>"
136        href="<?php echo esc_url( $permalink ); ?>#comment-<?php echo absint( $comment_id ); ?>"
137        >
138            <span class="like-count">0</span>
139        </a>
140        <?php
141    }
142
143    /**
144     * Enqueue admin style scripts.
145     */
146    public function enqueue_admin_styles_scripts() {
147        wp_enqueue_style( 'comment-like-count', plugins_url( 'comment-likes/admin-style.css', __FILE__ ), array(), JETPACK__VERSION );
148        wp_enqueue_script(
149            'comment-like-count',
150            Assets::get_file_url_for_environment(
151                '_inc/build/comment-likes/comment-like-count.min.js',
152                'modules/comment-likes/comment-like-count.js'
153            ),
154            array( 'jquery' ),
155            JETPACK__VERSION,
156            false
157        );
158    }
159
160    /**
161     * Adds like count column to admin page.
162     *
163     * @param array $columns column of admin table.
164     */
165    public function add_like_count_column( $columns ) {
166        $columns['comment_likes'] = '<span class="vers"></span>';
167        return $columns;
168    }
169
170    /**
171     * Initialize front end
172     */
173    public function frontend_init() {
174        if ( class_exists( Jetpack_AMP_Support::class ) && Jetpack_AMP_Support::is_amp_request() ) {
175            return;
176        }
177
178        add_action( 'wp_enqueue_scripts', array( $this, 'load_styles_register_scripts' ) );
179        add_filter( 'comment_text', array( $this, 'comment_likes' ), 10, 2 );
180    }
181
182    /**
183     * Load styling scripts
184     */
185    public function load_styles_register_scripts() {
186        if ( ! $this->settings->is_likes_visible() ) {
187            return;
188        }
189
190        if ( ! wp_style_is( 'open-sans', 'registered' ) ) {
191            wp_register_style( 'open-sans', 'https://fonts.googleapis.com/css?family=Open+Sans', array(), JETPACK__VERSION );
192        }
193        wp_enqueue_style( 'jetpack_likes', plugins_url( 'likes/style.css', __FILE__ ), array( 'open-sans' ), JETPACK__VERSION );
194        wp_enqueue_script( 'jetpack_likes_queuehandler', plugins_url( 'likes/queuehandler.js', __FILE__ ), array(), JETPACK__VERSION, true );
195    }
196
197    /**
198     * Display like count.
199     *
200     * @param string $content text content of the comment itself.
201     * @param object $comment comment object containing comment data.
202     */
203    public function comment_likes( $content, $comment = null ) {
204        if ( empty( $comment ) ) {
205            return $content;
206        }
207
208        if ( ! $this->settings->is_likes_visible() ) {
209            return $content;
210        }
211
212        $comment_id = get_comment_ID();
213        if ( empty( $comment_id ) && ! empty( $comment->comment_ID ) ) {
214            $comment_id = $comment->comment_ID;
215        }
216
217        if ( empty( $content ) || empty( $comment_id ) ) {
218            return $content;
219        }
220
221        if ( empty( $comment->comment_approved ) ) {
222            return $content;
223        }
224
225        // In case master iframe hasn't been loaded. This could be the case when Post Likes module is disabled,
226        // or on pages on which we have comments but post likes are disabled.
227        if ( false === has_action( 'wp_footer', 'jetpack_likes_master_iframe' ) ) {
228            add_action( 'wp_footer', 'jetpack_likes_master_iframe', 21 );
229        }
230
231        $uniqid = uniqid();
232
233        $src     = sprintf( 'https://widgets.wp.com/likes/#blog_id=%1$d&amp;comment_id=%2$d&amp;origin=%3$s&amp;obj_id=%1$d-%2$d-%4$s', $this->blog_id, $comment_id, $this->domain, $uniqid );
234        $name    = sprintf( 'like-comment-frame-%1$d-%2$d-%3$s', $this->blog_id, $comment_id, $uniqid );
235        $wrapper = sprintf( 'like-comment-wrapper-%1$d-%2$d-%3$s', $this->blog_id, $comment_id, $uniqid );
236
237        $html  = '';
238        $html .= "<div class='jetpack-comment-likes-widget-wrapper jetpack-likes-widget-unloaded' id='$wrapper' data-src='$src' data-name='$name'>";
239        $html .= "<div class='likes-widget-placeholder comment-likes-widget-placeholder comment-likes'><span class='loading'>" . esc_html__( 'Loading...', 'jetpack' ) . '</span></div>';
240        $html .= "<div class='comment-likes-widget jetpack-likes-widget comment-likes'><span class='comment-like-feedback'></span>";
241        $html .= "<span class='sd-text-color'></span><a class='sd-link-color'></a>";
242        $html .= '</div></div>';
243
244        /**
245         * Filters the Comment Likes button content.
246         *
247         * @module comment-likes
248         *
249         * @since 5.1.0
250         *
251         * @param string $html Comment Likes button content.
252         */
253        $like_button = apply_filters( 'comment_like_button', $html );
254
255        return $content . $like_button;
256    }
257}
258
259Jetpack_Comment_Likes::init();