<?php

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/**

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* Sharing Buttons Block.

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*

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* @since 13.1

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*

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* @package automattic/jetpack

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*/

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namespace Automattic\Jetpack\Extensions\Sharing_Button_Block;

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use Automattic\Jetpack\Blocks;

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use Automattic\Jetpack\Modules;

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use Automattic\Jetpack\Status\Host;

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use Jetpack_Gutenberg;

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use WP_Block_Template;

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if ( ! defined( 'ABSPATH' ) ) {

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exit( 0 );

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}

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require_once __DIR__ . '/class-sharing-source-block.php';

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require_once __DIR__ . '/components/social-icons.php';

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const PARENT_BLOCK_NAME = 'jetpack/sharing-buttons';

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const INNER_BLOCK_NAME = 'jetpack/sharing-button';

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/**

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* Registers the block for use in Gutenberg

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* This is done via an action so that we can disable

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* registration if we need to.

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*/

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function register_block() {

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Blocks::jetpack_register_block(

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__DIR__,

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array( 'render_callback' => __NAMESPACE__ . '\render_block' )

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);

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/*

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* Automatically add the sharing block to the end of single posts.

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*/

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add_filter( 'hooked_block_types', __NAMESPACE__ . '\add_block_to_single_posts_template', 10, 4 );

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add_filter( 'hooked_block_' . PARENT_BLOCK_NAME, __NAMESPACE__ . '\add_default_services_to_block', 10, 5 );

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}

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add_action( 'init', __NAMESPACE__ . '\register_block' );

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/**

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* Sharing Buttons block registration/dependency declaration.

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*

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* @param array $attr Array containing the Sharing Buttons block attributes.

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* @param string $content String containing the Sharing Buttons block content.

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* @param object $block Object containing block data.

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*

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* @return string

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*/

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function render_block( $attr, $content, $block ) {

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$service_name = $attr['service'];

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$title = $attr['label'] ?? $service_name;

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$icon = get_social_logo( $service_name );

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$style_type = $block->context['styleType'] ?? 'icon-text';

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$post_id = $block->context['postId'] ?? 0;

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$data_shared = sprintf(

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'sharing-%1$s-%2$d',

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$service_name,

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$post_id

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);

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$services = get_services();

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if ( ! array_key_exists( $service_name, $services ) ) {

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return $content;

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}

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$service = new $services[ $service_name ]( $service_name, array() );

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$link_props = $service->get_link(

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$post_id,

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'share=' . esc_attr( $service_name ) . '&nb=1',

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esc_attr( $data_shared )

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);

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$link_url = $link_props['url'];

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$link_classes = sprintf(

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'jetpack-sharing-button__button style-%1$s share-%2$s',

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$style_type,

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$service_name

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);

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$accessible_name = sprintf(

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/* translators: %s refers to a string representation of sharing service, e.g. Facebook */

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esc_html__( 'Share on %s', 'jetpack' ),

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esc_html( $title )

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);

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$accessible_name .= __( ' (Opens in new window)', 'jetpack' );

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$block_class_name = 'jetpack-sharing-button__list-item';

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if ( $service_name === 'share' ) {

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$block_class_name .= ' tooltip';

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/* translators: aria label for SMS sharing button */

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$accessible_name = esc_attr__( 'Share using Native tools', 'jetpack' );

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$link_props = $service->get_link( $post_id );

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}

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$link_url = $link_props['url'];

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$link_classes = sprintf(

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'jetpack-sharing-button__button style-%1$s share-%2$s',

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$style_type,

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$service_name

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);

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$styles = array();

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if (

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array_key_exists( 'iconColorValue', $block->context )

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&& ! empty( $block->context['iconColorValue'] )

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) {

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$styles['color'] = $block->context['iconColorValue'];

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}

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if (

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array_key_exists( 'iconBackgroundColorValue', $block->context )

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&& ! empty( $block->context['iconBackgroundColorValue'] )

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) {

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$styles['background-color'] = $block->context['iconBackgroundColorValue'];

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}

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$link_styles = '';

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foreach ( $styles as $property => $value ) {

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$link_styles .= $property . ':' . $value . ';';

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}

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Jetpack_Gutenberg::load_assets_as_required( __DIR__ );

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$component = '<li class="' . esc_attr( $block_class_name ) . '">';

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$component .= sprintf(

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'<a href="%1$s" target="_blank" rel="nofollow noopener noreferrer" class="%2$s" style="%3$s" data-service="%4$s" data-shared="%5$s" aria-labelledby="%5$s">',

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esc_url( $link_url ),

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esc_attr( $link_classes ),

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esc_attr( $link_styles ),

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esc_attr( $service_name ),

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esc_attr( $data_shared )

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);

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// Add hidden span with accessible name

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$component .= sprintf(

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'<span id="%s" hidden>%s</span>',

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esc_attr( $data_shared ),

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esc_html( $accessible_name )

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);

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$component .= $style_type !== 'text' ? $icon : '';

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$component .= '<span class="jetpack-sharing-button__service-label" aria-hidden="true">' . esc_html( $title ) . '</span>';

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if ( $service_name === 'share' ) {

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$component .= '<span class="tooltiptext" aria-live="assertive">' . esc_html__( 'Copied to clipboard', 'jetpack' ) . '</span>';

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}

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$component .= '</a>';

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$component .= '</li>';

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return $component;

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}

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/**

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* Get services for the Sharing Buttons block.

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*

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* @return array Array of services.

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*/

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function get_services() {

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$services = array(

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'print' => Share_Print_Block::class,

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'mail' => Share_Email_Block::class,

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'facebook' => Share_Facebook_Block::class,

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'linkedin' => Share_LinkedIn_Block::class,

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'reddit' => Share_Reddit_Block::class,

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'twitter' => Share_Twitter_Block::class,

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'tumblr' => Share_Tumblr_Block::class,

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'pinterest' => Share_Pinterest_Block::class,

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'telegram' => Share_Telegram_Block::class,

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'threads' => Share_Threads_Block::class,

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'whatsapp' => Jetpack_Share_WhatsApp_Block::class,

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'mastodon' => Share_Mastodon_Block::class,

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'nextdoor' => Share_Nextdoor_Block::class,

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'bluesky' => Share_Bluesky_Block::class,

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'x' => Share_X_Block::class,

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'share' => Share_Native_Block::class,

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);

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return $services;

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}

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/**

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* Launch sharing requests on page load when a specific query string is used.

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*

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* @return void

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*/

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function sharing_process_requests() {

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global $post;

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// Only process if: single post and share={service} defined

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if ( ( is_page() || is_single() ) && isset( $_GET['share'] ) && is_string( $_GET['share'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended

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$services = get_services();

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$service_name = sanitize_text_field( wp_unslash( $_GET['share'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended

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// Only allow services that have been defined in get_services().

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if ( ! array_key_exists( $service_name, $services ) ) {

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return;

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}

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$service = new $services[ ( $service_name ) ]( $service_name, array() ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended

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$service->process_request( $post, $_POST ); // phpcs:ignore WordPress.Security.NonceVerification.Missing

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}

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}

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// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Only checking for the data being present.

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if ( isset( $_GET['share'] ) ) {

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add_action( 'template_redirect', __NAMESPACE__ . '\sharing_process_requests', 9 );

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}

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/**

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* Automatically add the Sharing Buttons block to the end of the Single Posts template.

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*

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* @since 13.2

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*

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* @param array $hooked_block_types The list of hooked block types.

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* @param string $relative_position The relative position of the hooked blocks. Can be one of 'before', 'after', 'first_child', or 'last_child'.

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* @param string $anchor_block_type The anchor block type.

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* @param WP_Block_Template|array $context The block template, template part, or pattern that the anchor block belongs to.

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*

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* @return array

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*/

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function add_block_to_single_posts_template( $hooked_block_types, $relative_position, $anchor_block_type, $context ) {

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// Add the block at the end of the post content.

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if (

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'after' !== $relative_position

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|| 'core/post-content' !== $anchor_block_type

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) {

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return $hooked_block_types;

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}

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// Only automate the addition of the block in block-based themes.

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if ( ! wp_is_block_theme() ) {

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return $hooked_block_types;

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}

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// Proceed if the user has toggled the auto-addition in Jetpack settings.

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if ( ! get_option( 'jetpack_sharing_buttons_auto_add' ) ) {

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return $hooked_block_types;

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}

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/*

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* The Sharing module must be disabled.

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* We do not want to automatically insert sharing buttons twice.

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* On WordPress.com Simple the module is always active so we must check differently.

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* There, we check if buttons are enabled on single posts and pages.

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*/

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if ( ( new Host() )->is_wpcom_simple() ) {

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if ( ! class_exists( 'Sharing_Service' ) ) {

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include_once JETPACK__PLUGIN_DIR . 'modules/sharedaddy/sharing-service.php';

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}

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$sharer = new \Sharing_Service();

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$global = $sharer->get_global_options();

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if (

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! $global['show']

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|| in_array( 'post', $global['show'], true )

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|| in_array( 'page', $global['show'], true )

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) {

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return $hooked_block_types;

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}

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} elseif ( ( new Modules() )->is_active( 'sharedaddy' ) ) {

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return $hooked_block_types;

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}

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// Only hook into page and single post templates.

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if (

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! $context instanceof WP_Block_Template

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|| ! property_exists( $context, 'slug' )

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|| empty( $context->slug )

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|| ! preg_match( '/^(page|single)/', $context->slug )

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) {

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return $hooked_block_types;

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}

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$hooked_block_types[] = PARENT_BLOCK_NAME;

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return $hooked_block_types;

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}

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/**

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* Add default services to the block we add to the post content by default.

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*

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* @since 13.2

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*

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* @param array $parsed_hooked_block The parsed block array for the given hooked block type.

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* @param string $hooked_block_type The hooked block type name.

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* @param string $relative_position The relative position of the hooked block.

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* @param array $parsed_anchor_block The anchor block, in parsed block array format.

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* @param WP_Block_Template|array $context The block template, template part, or pattern that the anchor block.

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*

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* @return array

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*/

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function add_default_services_to_block( $parsed_hooked_block, $hooked_block_type, $relative_position, $parsed_anchor_block, $context ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable

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// Is the hooked block adjacent to the anchor block?

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if ( 'after' !== $relative_position ) {

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return $parsed_hooked_block;

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}

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// Use the icon style by default.

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$parsed_hooked_block['attrs']['styleType'] = 'icon';

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// Add default services (inner blocks) to the block.

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$parsed_hooked_block['innerBlocks'] = array(

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array(

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'blockName' => INNER_BLOCK_NAME,

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'innerContent' => array(),

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'attrs' => array(

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'service' => 'facebook',

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'label' => esc_html__( 'Facebook', 'jetpack' ),

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),

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),

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array(

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'blockName' => INNER_BLOCK_NAME,

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'innerContent' => array(),

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'attrs' => array(

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'service' => 'x',

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'label' => esc_html__( 'X', 'jetpack' ),

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),

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),

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array(

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'blockName' => INNER_BLOCK_NAME,

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'innerContent' => array(),

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'attrs' => array(

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'service' => 'mastodon',

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'label' => esc_html__( 'Mastodon', 'jetpack' ),

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),

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),

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);

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// Wrap inner blocks in our sharing buttons markup.

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$parsed_hooked_block['innerContent'] = array(

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'<ul class="wp-block-jetpack-sharing-buttons has-normal-icon-size jetpack-sharing-buttons__services-list" id="jetpack-sharing-serivces-list">',

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null,

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null,

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null,

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'</ul>',

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);

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// Wrap the whole thing in a group block.

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return array(

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'blockName' => 'core/group',

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'attrs' => array(

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// Does the anchor block have a layout attribute? If so, use it in the group to maintain the same alignment.

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'layout' => $parsed_anchor_block['attrs']['layout'] ?? 'null',

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),

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'innerBlocks' => array( $parsed_hooked_block ),

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'innerContent' => array(

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'<div class="wp-block-group">',

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null,

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'</div>',

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),

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);

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}

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