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<?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 Jetpack |
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*/ |
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jetpack_register_block( |
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'jetpack/map', |
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array( |
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'render_callback' => 'jetpack_map_block_load_assets', |
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) |
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); |
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/** |
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* Return the site's own Mapbox API key if set, or the WordPress.com's one otherwise. |
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* |
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* @return string |
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*/ |
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function jetpack_get_mapbox_api_key() { |
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if ( ! class_exists( 'WPCOM_REST_API_V2_Endpoint_Service_API_Keys' ) || ! Jetpack::is_active() ) { |
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return Jetpack_Options::get_option( 'mapbox_api_key' ); |
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} |
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$response = WPCOM_REST_API_V2_Endpoint_Service_API_Keys::get_service_api_key( array( 'service' => 'mapbox' ) ); |
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return $response['service_api_key']; |
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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 jetpack_map_block_load_assets( $attr, $content ) { |
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$api_key = jetpack_get_mapbox_api_key(); |
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if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::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( 'map' ); |
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return preg_replace( '/<div /', '<div data-api-key="' . esc_attr( $api_key ) . '" ', $content, 1 ); |
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} |
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/** |
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* Render a page containing only a single Map block. |
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*/ |
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function jetpack_map_block_render_single_block_page() { |
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// phpcs:ignore WordPress.Security.NonceVerification |
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$map_block_counter = isset( $_GET, $_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, $_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', $post->post_content ); |
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/* Suppress warnings */ |
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libxml_use_internal_errors( true ); |
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@$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 ( ! $container ) { |
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return; |
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} |
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/* Compile scripts and styles */ |
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ob_start(); |
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add_filter( 'jetpack_is_amp_request', '__return_false' ); |
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Jetpack_Gutenberg::load_assets_as_required( 'map' ); |
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wp_scripts()->do_items(); |
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wp_styles()->do_items(); |
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add_filter( 'jetpack_is_amp_request', '__return_true' ); |
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$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( $container ); |
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$api_key = jetpack_get_mapbox_api_key(); |
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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( $api_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; |
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} |
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add_action( 'wp', 'jetpack_map_block_render_single_block_page' ); |
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If you suppress an error, we recommend checking for the error condition explicitly: