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1<?php
2/**
3 * Adds support for Jetpack Subscription Modal On Comment feature
4 * Limited to Atomic sites.
5 *
6 * @package automattic/jetpack-mu-wpcom
7 * @since 12.4
8 */
9
10use Automattic\Jetpack\Extensions\Premium_Content\Subscription_Service\Abstract_Token_Subscription_Service;
11use Automattic\Jetpack\Status\Host;
12use const Automattic\Jetpack\Extensions\Subscriptions\META_NAME_FOR_POST_LEVEL_ACCESS_SETTINGS;
13
14if ( ! defined( 'ABSPATH' ) ) {
15    exit( 0 );
16}
17
18/**
19 * Jetpack_Subscription_Modal_On_Comment class.
20 */
21class Jetpack_Subscription_Modal_On_Comment {
22    /**
23     * Jetpack_Subscription_Modal_On_Comment singleton instance.
24     *
25     * @var Jetpack_Subscription_Modal_On_Comment|null
26     */
27    private static $instance;
28
29    /**
30     * Jetpack_Subscription_Modal_On_Comment instance init.
31     */
32    public static function init() {
33        if ( self::$instance === null ) {
34            self::$instance = new Jetpack_Subscription_Modal_On_Comment();
35        }
36
37        return self::$instance;
38    }
39
40    const BLOCK_TEMPLATE_PART_SLUG = 'jetpack-subscription-modal';
41
42    /**
43     * Returns the block template part ID.
44     *
45     * @return string
46     */
47    public static function get_block_template_part_id() {
48        return get_stylesheet() . '//' . self::BLOCK_TEMPLATE_PART_SLUG;
49    }
50
51    /**
52     * Jetpack_Subscription_Modal_On_Comment class constructor.
53     * Limited to Atomic sites.
54     */
55    public function __construct() {
56        if ( ( new Host() )->is_woa_site() && get_option( 'jetpack_verbum_subscription_modal', true ) ) {
57            add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_assets' ) );
58            add_action( 'wp_footer', array( $this, 'add_subscription_modal_to_frontend' ) );
59            add_filter( 'get_block_template', array( $this, 'get_block_template_filter' ), 10, 3 );
60        }
61    }
62
63    /**
64     * Enqueues JS to load modal.
65     *
66     * @return void
67     */
68    public function enqueue_assets() {
69        if ( ! $this->should_user_see_modal() ) {
70            return;
71        }
72
73        wp_enqueue_style( 'subscription-modal-css', plugins_url( 'subscription-modal.css', __FILE__ ), array(), JETPACK__VERSION );
74        wp_enqueue_script( 'subscription-modal-js', plugins_url( 'subscription-modal.js', __FILE__ ), array( 'wp-dom-ready' ), JETPACK__VERSION, true );
75        wp_localize_script(
76            'subscription-modal-js',
77            'subscriptionData',
78            array(
79                'homeUrl' => wp_parse_url( home_url(), PHP_URL_HOST ),
80            )
81        );
82    }
83
84    /**
85     * Adds modal with Subscribe Modal content.
86     *
87     * @return void
88     */
89    public function add_subscription_modal_to_frontend() {
90        if ( $this->should_user_see_modal() ) { ?>
91                    <div class="jetpack-subscription-modal">
92                        <div class="jetpack-subscription-modal__modal-content">
93                            <?php block_template_part( self::BLOCK_TEMPLATE_PART_SLUG ); ?>
94                        </div>
95                    </div>
96            <?php
97        }
98    }
99
100    /**
101     * Makes get_block_template return the WP_Block_Template for the Subscribe Modal.
102     *
103     * @param WP_Block_Template $block_template The block template to be returned.
104     * @param string            $id Template unique identifier (example: theme_slug//template_slug).
105     * @param string            $template_type Template type: `'wp_template'` or '`wp_template_part'`.
106     *
107     * @return WP_Block_Template
108     */
109    public function get_block_template_filter( $block_template, $id, $template_type ) {
110        if ( empty( $block_template ) && $template_type === 'wp_template_part' ) {
111            if ( $id === self::get_block_template_part_id() ) {
112                return $this->get_template();
113            }
114        }
115
116        return $block_template;
117    }
118
119    /**
120     * Returns a custom template for the Subscribe Modal.
121     *
122     * @return WP_Block_Template
123     */
124    public function get_template() {
125        $template                 = new WP_Block_Template();
126        $template->theme          = get_stylesheet();
127        $template->slug           = self::BLOCK_TEMPLATE_PART_SLUG;
128        $template->id             = self::get_block_template_part_id();
129        $template->area           = 'uncategorized';
130        $template->content        = $this->get_subscribe_template_content();
131        $template->source         = 'plugin';
132        $template->type           = 'wp_template_part';
133        $template->title          = __( 'Jetpack Subscription modal', 'jetpack' );
134        $template->status         = 'publish';
135        $template->has_theme_file = false;
136        $template->is_custom      = true;
137        $template->description    = __( 'A subscribe form that submit a comment.', 'jetpack' );
138
139        return $template;
140    }
141
142    /**
143     * Returns the initial content of the Subscribe Modal template.
144     * This can then be edited by the user.
145     *
146     * @return string
147     */
148    public function get_subscribe_template_content() {
149        // translators: %s is the name of the site.
150        $discover_more_from = sprintf( __( 'Discover more from %s', 'jetpack' ), get_bloginfo( 'name' ) );
151        $subscribe_text     = __( 'Subscribe now to keep reading and get access to the full archive.', 'jetpack' );
152        $continue_reading   = __( 'Continue reading', 'jetpack' );
153
154        return <<<HTML
155    <!-- wp:group {"style":{"spacing":{"top":"32px","bottom":"32px","left":"32px","right":"32px"},"margin":{"top":"0","bottom":"0"}},"border":{"color":"#dddddd","width":"1px"}},"layout":{"type":"constrained","contentSize":"450px"}} -->
156    <div class="wp-block-group has-border-color jetpack-subscription-modal__modal-content-form" style="border-color:#dddddd;border-width:1px;margin-top:0;margin-bottom:0;padding:32px">
157
158        <!-- wp:heading {"textAlign":"center","style":{"typography":{"fontStyle":"normal","fontWeight":"600","fontSize":"26px"},"layout":{"selfStretch":"fit","flexSize":null},"spacing":{"margin":{"top":"4px","bottom":"10px"}}}} -->
159        <h2 class="wp-block-heading has-text-align-center" style="margin-top:4px;margin-bottom:10px;font-size:26px;font-style:normal;font-weight:600">$discover_more_from</h2>
160        <!-- /wp:heading -->
161
162        <!-- wp:paragraph {"align":"center","style":{"typography":{"fontSize":"15px"},"spacing":{"margin":{"top":"4px","bottom":"0px"}}}} -->
163        <p class='has-text-align-center' style='margin-top:4px;margin-bottom:0px;font-size:15px'>$subscribe_text</p>
164        <!-- /wp:paragraph -->
165
166        <!-- wp:jetpack/subscriptions {"borderRadius":50,"className":"is-style-compact","appSource":"atomic-subscription-modal-lo"} /-->
167
168        <!-- wp:paragraph {"align":"center","style":{"spacing":{"margin":{"top":"20px"}},"typography":{"fontSize":"14px"}},"className":"jetpack-subscription-modal__close"} -->
169        <p class="has-text-align-center jetpack-subscription-modal__close" style="margin-top:20px;font-size:14px"><a href="#">$continue_reading</a></p>
170        <!-- /wp:paragraph -->
171    </div>
172    <!-- /wp:group -->
173HTML;
174    }
175
176    /**
177     * Returns true if a site visitor should see
178     * the Subscribe Modal.
179     *
180     * @return bool
181     */
182    public function should_user_see_modal() {
183        // Only show when viewing frontend single post.
184        if ( is_admin() || ! is_singular( 'post' ) ) {
185            return false;
186        }
187
188        // Don't show if post is for subscribers only or has paywall block
189        global $post;
190
191        if ( ! $post instanceof WP_Post ) {
192            return false;
193        }
194
195        if ( defined( 'Automattic\\Jetpack\\Extensions\\Subscriptions\\META_NAME_FOR_POST_LEVEL_ACCESS_SETTINGS' ) ) {
196            $access_level = get_post_meta( $post->ID, META_NAME_FOR_POST_LEVEL_ACCESS_SETTINGS, true );
197        } else {
198            $access_level = get_post_meta( $post->ID, '_jetpack_newsletter_access', true );
199        }
200        require_once JETPACK__PLUGIN_DIR . 'extensions/blocks/premium-content/_inc/subscription-service/include.php';
201        $is_accessible_by_everyone = Abstract_Token_Subscription_Service::POST_ACCESS_LEVEL_EVERYBODY === $access_level || empty( $access_level );
202
203        if ( ! $is_accessible_by_everyone ) {
204            return false;
205        }
206
207        return true;
208    }
209}
210
211Jetpack_Subscription_Modal_On_Comment::init();
212
213add_action(
214    'rest_api_switched_to_blog',
215    function () {
216        Jetpack_Subscription_Modal_On_Comment::init();
217    }
218);