<?php

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/**

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* Map block.

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*

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* @since 6.8.0

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*

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* @package automattic/jetpack

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*/

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namespace Automattic\Jetpack\Extensions\Map;

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use Automattic\Jetpack\Blocks;

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use Automattic\Jetpack\Status\Host;

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use Automattic\Jetpack\Tracking;

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use Jetpack;

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use Jetpack_Gutenberg;

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use Jetpack_Mapbox_Helper;

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if ( ! defined( 'ABSPATH' ) ) {

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exit( 0 );

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}

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if ( ! class_exists( 'Jetpack_Mapbox_Helper' ) ) {

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require_once JETPACK__PLUGIN_DIR . '_inc/lib/class-jetpack-mapbox-helper.php';

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}

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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(

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'render_callback' => __NAMESPACE__ . '\load_assets',

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)

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);

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}

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

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/**

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* Record a Tracks event every time the Map block is loaded on WordPress.com and Atomic.

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*

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* @param string $access_token_source The Mapbox API access token source.

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*/

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function wpcom_load_event( $access_token_source ) {

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if ( 'wpcom' !== $access_token_source ) {

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return;

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}

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$event_name = 'map_block_mapbox_wpcom_key_load';

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if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {

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require_lib( 'tracks/client' );

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tracks_record_event( wp_get_current_user(), $event_name );

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} elseif ( ( new Host() )->is_woa_site() && Jetpack::is_connection_ready() ) {

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$tracking = new Tracking();

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$tracking->record_user_event( $event_name );

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}

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}

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/**

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* Function to determine which map provider to choose

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*

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* @param string $html The block's HTML - needed for the class name.

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*

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* @return string The name of the map provider.

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*/

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function get_map_provider( $html ) {

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$mapbox_styles = array( 'is-style-terrain' );

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// return mapbox if html contains one of the mapbox styles

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foreach ( $mapbox_styles as $style ) {

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if ( str_contains( $html, $style ) ) {

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return 'mapbox';

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}

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}

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// you can override the map provider with a cookie

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if ( isset( $_COOKIE['map_provider'] ) ) {

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return sanitize_text_field( wp_unslash( $_COOKIE['map_provider'] ) );

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}

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// if we don't apply the filters & default to mapbox

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return apply_filters( 'wpcom_map_block_map_provider', 'mapbox' );

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}

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/**

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* Map block registration/dependency declaration.

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*

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

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* @param string $content String containing the map block content.

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*

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* @return string

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*/

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function load_assets( $attr, $content ) {

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$access_token = Jetpack_Mapbox_Helper::get_access_token();

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wpcom_load_event( $access_token['source'] );

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if ( Blocks::is_amp_request() ) {

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static $map_block_counter = array();

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$id = get_the_ID();

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if ( ! isset( $map_block_counter[ $id ] ) ) {

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$map_block_counter[ $id ] = 0;

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}

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++$map_block_counter[ $id ];

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$iframe_url = add_query_arg(

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array(

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'map-block-counter' => absint( $map_block_counter[ $id ] ),

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'map-block-post-id' => $id,

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),

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get_permalink()

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);

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$placeholder = preg_replace( '/(?<=<div\s)/', 'placeholder ', $content );

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return sprintf(

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'<amp-iframe src="%s" width="%d" height="%d" layout="responsive" allowfullscreen sandbox="allow-scripts">%s</amp-iframe>',

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esc_url( $iframe_url ),

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4,

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3,

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$placeholder

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);

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}

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Jetpack_Gutenberg::load_assets_as_required( __DIR__ );

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$map_provider = get_map_provider( $content );

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if ( $map_provider === 'mapkit' ) {

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return preg_replace( '/<div /', '<div data-map-provider="mapkit" data-api-key="' . esc_attr( $access_token['key'] ) . '" data-blog-id="' . \Jetpack_Options::get_option( 'id' ) . '" ', $content, 1 );

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}

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return preg_replace( '/<div /', '<div data-map-provider="mapbox" data-api-key="' . esc_attr( $access_token['key'] ) . '" ', $content, 1 );

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}

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/**

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* Render a page containing only a single Map block.

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*/

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function render_single_block_page() {

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// phpcs:ignore WordPress.Security.NonceVerification

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$map_block_counter = isset( $_GET['map-block-counter'] ) ? absint( $_GET['map-block-counter'] ) : null;

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// phpcs:ignore WordPress.Security.NonceVerification

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$map_block_post_id = isset( $_GET['map-block-post-id'] ) ? absint( $_GET['map-block-post-id'] ) : null;

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if ( ! $map_block_counter || ! $map_block_post_id ) {

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return;

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}

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/* Create an array of all root-level DIVs that are Map Blocks */

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$post = get_post( $map_block_post_id );

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if ( ! class_exists( 'DOMDocument' ) ) {

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return;

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}

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$post_html = new \DOMDocument();

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/** This filter is already documented in core/wp-includes/post-template.php */

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$content = apply_filters( 'the_content', $post->post_content );

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// Return early if empty to prevent DOMDocument::loadHTML fatal.

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if ( empty( $content ) ) {

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return;

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}

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/* Suppress warnings */

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libxml_use_internal_errors( true );

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@$post_html->loadHTML( $content ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged

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libxml_use_internal_errors( false );

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$xpath = new \DOMXPath( $post_html );

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$container = $xpath->query( '//div[ contains( @class, "wp-block-jetpack-map" ) ]' )->item( $map_block_counter - 1 );

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/* Check that we have a block matching the counter position */

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if ( ! $container ) {

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return;

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}

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/* Compile scripts and styles */

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ob_start();

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add_filter( 'jetpack_is_amp_request', '__return_false' );

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Jetpack_Gutenberg::load_assets_as_required( __DIR__ );

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wp_scripts()->do_items();

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wp_styles()->do_items();

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add_filter( 'jetpack_is_amp_request', '__return_true' );

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$head_content = ob_get_clean();

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/* Put together a new complete document containing only the requested block markup and the scripts/styles needed to render it */

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$block_markup = $post_html->saveHTML( $container );

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$access_token = Jetpack_Mapbox_Helper::get_access_token();

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$page_html = sprintf(

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'<!DOCTYPE html><head><style>html, body { margin: 0; padding: 0; }</style>%s</head><body>%s</body>',

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$head_content,

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preg_replace( '/(?<=<div\s)/', 'data-api-key="' . esc_attr( $access_token['key'] ) . '" ', $block_markup, 1 )

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);

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echo $page_html; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped

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exit( 0 );

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}

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add_action( 'wp', __NAMESPACE__ . '\render_single_block_page' );

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/**

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* Helper function to generate the markup of the block in PHP.

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*

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* @param Array $points - Array containing geo location points.

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*

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* @return string Markup for the jetpack/map block.

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*/

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function map_block_from_geo_points( $points ) {

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$map_block_data = array(

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'points' => $points,

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'zoom' => 8,

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'mapCenter' => array(

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'lng' => $points[0]['coordinates']['longitude'],

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'lat' => $points[0]['coordinates']['latitude'],

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),

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);

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$list_items = array_map(

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function ( $point ) {

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$link = add_query_arg(

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array(

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'api' => 1,

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'query' => $point['coordinates']['latitude'] . ',' . $point['coordinates']['longitude'],

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),

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'https://www.google.com/maps/search/'

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);

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return sprintf( '<li><a href="%s">%s</a></li>', esc_url( $link ), $point['title'] );

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},

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$points

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);

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$map_block = '<!-- wp:jetpack/map ' . wp_json_encode( $map_block_data, JSON_UNESCAPED_SLASHES | JSON_HEX_TAG | JSON_HEX_AMP ) . ' -->' . PHP_EOL;

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$map_block .= sprintf(

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'<div class="wp-block-jetpack-map" data-map-style="default" data-map-details="true" data-points="%1$s" data-zoom="%2$d" data-map-center="%3$s" data-marker-color="red" data-show-fullscreen-button="true">',

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esc_attr( wp_json_encode( $map_block_data['points'], JSON_HEX_AMP | JSON_UNESCAPED_SLASHES ) ),

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$map_block_data['zoom'],

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esc_attr( wp_json_encode( $map_block_data['mapCenter'], JSON_HEX_AMP | JSON_UNESCAPED_SLASHES ) )

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);

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$map_block .= '<ul>' . implode( "\n", $list_items ) . '</ul>';

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$map_block .= '</div>' . PHP_EOL;

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$map_block .= '<!-- /wp:jetpack/map -->';

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return $map_block;

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}

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