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<?php /** * Adds support for Jetpack Subscription Site feature. * * @package automattic/jetpack * @since 13.2 / namespace Automattic\Jetpack\Extensions\Subscriptions; use Jetpack_Memberships; use WP_Block_Template; use WP_Post; /* * Jetpack_Subscription_Site class. / class Jetpack_Subscription_Site { /* * Jetpack_Subscription_Site singleton instance. * * @var Jetpack_Subscription_Site\|null / private static $instance; /* * Jetpack_Subscription_Site instance init. / public static function init() { if ( self::$instance === null ) { self::$instance = new Jetpack_Subscription_Site(); } return self::$instance; } /* * Handles Subscribe block placements. * * @return void / public function handle_subscribe_block_placements() { $this->handle_subscribe_block_post_end_placement(); $this->handle_subscribe_block_navigation_placement(); } /* * Returns true if current user can view the post. * * @return bool / protected function user_can_view_post() { if ( ! class_exists( 'Jetpack_Memberships' ) ) { return true; } return Jetpack_Memberships::user_can_view_post(); } /* * Returns post end placement hooked block attributes. * * @param array $default_attrs Deafult attributes. * @param array $anchor_block The anchor block, in parsed block array format. * * @return array / protected function get_post_end_placement_block_attributes( $default_attrs, $anchor_block ) { if ( ! empty( $anchor_block['attrs']['layout']['type'] ) ) { return array_merge( $default_attrs, array( 'layout' => array( 'type' => $anchor_block['attrs']['layout']['type'], ), ) ); } if ( ! empty( $anchor_block['attrs']['layout']['inherit'] ) ) { return array_merge( $default_attrs, array( 'layout' => array( 'inherit' => $anchor_block['attrs']['layout']['inherit'], ), ) ); } return $default_attrs; } /* * Returns true if context is recognized as a header element. * * @param WP_Block_Template\|WP_Post\|array $context The block template, template part, or pattern the anchor block belongs to. * * @return bool / protected function is_header_context( $context ) { if ( $context instanceof WP_Post && $context->post_type === 'wp_navigation' ) { return true; } if ( $context instanceof WP_Block_Template && $context->area === 'header' ) { return true; } return false; } /* * Returns true if context is recognized as a single post element. * * @param WP_Block_Template\|WP_Post\|array $context The block template, template part, or pattern the anchor block belongs to. * * @return bool / protected function is_single_post_context( $context ) { /* * Some themes are not returning a WP_Block_Template. In that case, we need to check with is_singular function. / if ( is_array( $context ) ) { return is_singular( 'post' ); } return $context instanceof WP_Block_Template && $context->slug === 'single'; } /* * Handles Subscription block navigation placement. * * @return void / protected function handle_subscribe_block_navigation_placement() { $is_enabled = get_option( 'jetpack_subscriptions_subscribe_navigation_enabled', false ); if ( ! $is_enabled ) { return; } if ( ! wp_is_block_theme() ) { // TODO Fallback for classic themes. return; } add_filter( 'hooked_block_types', function ( $hooked_blocks, $relative_position, $anchor_block, $context ) { if ( $anchor_block === 'core/navigation' && $relative_position === 'last_child' && self::is_header_context( $context ) ) { $hooked_blocks[] = 'jetpack/subscriptions'; } return $hooked_blocks; }, 10, 4 ); add_filter( 'hooked_block_jetpack/subscriptions', function ( $hooked_block, $hooked_block_type, $relative_position, $anchor_block ) { $is_navigation_anchor_block = isset( $anchor_block['blockName'] ) && $anchor_block['blockName'] === 'core/navigation'; if ( $is_navigation_anchor_block ) { $class_name = ( ! empty( $hooked_block['attrs'] ) && ! empty( $hooked_block['attrs']['className'] ) ) ? $hooked_block['attrs']['className'] . ' is-style-button' : 'is-style-button'; $hooked_block['attrs']['className'] = $class_name; $hooked_block['attrs']['appSource'] = 'subscribe-block-navigation'; } return $hooked_block; }, 10, 4 ); } /* * Handles Subscribe block placement at the end of each post. * * @return void */ protected function handle_subscribe_block_post_end_placement() { $subscribe_post_end_enabled = get_option( 'jetpack_subscriptions_subscribe_post_end_enabled', false ); if ( ! $subscribe_post_end_enabled ) { return; } if ( ! wp_is_block_theme() ) { // Fallback for classic themes. add_filter( 'the_content', function ( $content ) { // Check if we're inside the main loop in a single Post. if ( is_single() && in_the_loop() && is_main_query() && $this->user_can_view_post() ) { // translators: %s is the name of the site. $discover_more_from_text = sprintf( __( 'Discover more from %s', 'jetpack' ), get_bloginfo( 'name' ) ); $subscribe_text = __( 'Subscribe to get the latest posts sent to your email.', 'jetpack' ); return $content . do_blocks( <<<HTML <!-- wp:group {"style":{"spacing":{"padding":{"top":"0px","bottom":"0px","left":"0px","right":"0px"},"margin":{"top":"32px","bottom":"32px"}},"border":{"width":"0px","style":"none"}},"className":"has-border-color","layout":{"type":"default"}} --> <div class="wp-block-group has-border-color" style="border-style:none;border-width:0px;margin-top:32px;margin-bottom:32px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px"> <!-- wp:separator {"style":{"spacing":{"margin":{"bottom":"24px"}}},"className":"is-style-wide"} --> <hr class="wp-block-separator has-alpha-channel-opacity is-style-wide" style="margin-bottom:24px"/> <!-- /wp:separator --> <!-- wp:heading {"textAlign":"center","level":3,"style":{"layout":{"selfStretch":"fit","flexSize":null},"spacing":{"margin":{"top":"4px","bottom":"10px"}}}} --> <h3 class="wp-block-heading has-text-align-center" style="margin-top:4px;margin-bottom:10px">$discover_more_from_text</h3> <!-- /wp:heading --> <!-- wp:paragraph {"align":"center","style":{"typography":{"fontSize":"15px"},"spacing":{"margin":{"top":"10px","bottom":"10px"}}}} --> <p class="has-text-align-center" style="margin-top:10px;margin-bottom:10px;font-size:15px">$subscribe_text</p> <!-- /wp:paragraph --> <!-- wp:group {"layout":{"type":"constrained","contentSize":"480px"}} --> <div class="wp-block-group"> <!-- wp:jetpack/subscriptions {"appSource":"subscribe-block-post-end"} /--> </div> <!-- /wp:group --> </div> <!-- /wp:group --> HTML ); } return $content; }, 100, // To insert it after the sharing blocks. 1 ); return; } add_filter( 'hooked_block_types', function ( $hooked_blocks, $relative_position, $anchor_block, $context ) { if ( $anchor_block === 'core/post-content' && $relative_position === 'after' && self::is_single_post_context( $context ) && $this->user_can_view_post() ) { $hooked_blocks[] = 'jetpack/subscriptions'; } return $hooked_blocks; }, 10, 4 ); add_filter( 'hooked_block_jetpack/subscriptions', function ( $hooked_block, $hooked_block_type, $relative_position, $anchor_block ) { $is_post_content_anchor_block = isset( $anchor_block['blockName'] ) && $anchor_block['blockName'] === 'core/post-content'; if ( $is_post_content_anchor_block && ( $relative_position === 'after' \|\| $relative_position === 'before' ) ) { $attrs = $this->get_post_end_placement_block_attributes( array( 'style' => array( 'spacing' => array( 'margin' => array( 'top' => '48px', 'bottom' => '48px', ), 'padding' => array( 'top' => '5px', 'bottom' => '5px', ), ), ), ), $anchor_block ); // translators: %s is the name of the site. $discover_more_from_text = sprintf( __( 'Discover more from %s', 'jetpack' ), get_bloginfo( 'name' ) ); $subscribe_text = __( 'Subscribe to get the latest posts sent to your email.', 'jetpack' ); $inner_content_begin = <<<HTML <div class="wp-block-group" style="margin-top:48px;margin-bottom:48px;padding-top:5px;padding-bottom:5px"> <!-- wp:separator {"style":{"spacing":{"margin":{"bottom":"36px"}}},"className":"is-style-wide"} --> <hr class="wp-block-separator has-alpha-channel-opacity is-style-wide" style="margin-bottom:36px"/> <!-- /wp:separator --> <!-- wp:heading {"textAlign":"center","level":3,"style":{"layout":{"selfStretch":"fit","flexSize":null},"spacing":{"margin":{"top":"4px","bottom":"10px"}}}} --> <h3 class="wp-block-heading has-text-align-center" style="margin-top:4px;margin-bottom:10px">$discover_more_from_text</h3> <!-- /wp:heading --> <!-- wp:paragraph {"align":"center","style":{"typography":{"fontSize":"15px"},"spacing":{"margin":{"top":"4px","bottom":"0px"}}}} --> <p class="has-text-align-center" style="margin-top:4px;margin-bottom:0px;font-size:15px">$subscribe_text</p> <!-- /wp:paragraph --> <!-- wp:group {"layout":{"type":"constrained","contentSize":"480px"}} --> <div class="wp-block-group"> HTML; $inner_content_end = <<<'HTML' </div> <!-- /wp:group --> </div> HTML; $hooked_block['attrs']['appSource'] = 'subscribe-block-post-end'; return array( 'blockName' => 'core/group', 'attrs' => $attrs, 'innerBlocks' => array( $hooked_block ), 'innerContent' => array( $inner_content_begin, null, $inner_content_end, ), ); } return $hooked_block; }, 10, 4 ); } }