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<?php |
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/** |
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* Manages compatibility with the amp-wp plugin |
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* |
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* @see https://github.com/Automattic/amp-wp |
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*/ |
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class Jetpack_AMP_Support { |
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static function init() { |
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// enable stats |
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if ( Jetpack::is_module_active( 'stats' ) ) { |
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add_action( 'amp_post_template_footer', array( 'Jetpack_AMP_Support', 'add_stats_pixel' ) ); |
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} |
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// carousel |
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add_filter( 'jp_carousel_maybe_disable', array( __CLASS__, 'is_amp_request' ) ); |
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// sharing |
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add_filter( 'sharing_enqueue_scripts', array( __CLASS__, 'is_not_amp_request' ) ); |
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add_filter( 'jetpack_sharing_counts', array( __CLASS__, 'is_not_amp_request' ) ); |
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add_filter( 'sharing_js', array( __CLASS__, 'is_not_amp_request' ) ); |
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add_filter( 'jetpack_sharing_display_markup', array( 'Jetpack_AMP_Support', 'render_sharing_html' ), 10, 2 ); |
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// disable lazy images |
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add_filter( 'lazyload_is_enabled', array( __CLASS__, 'is_not_amp_request' ) ); |
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// disable imploding CSS |
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add_filter( 'jetpack_implode_frontend_css', array( __CLASS__, 'is_not_amp_request' ) ); |
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// enforce freedom mode for videopress |
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add_filter( 'videopress_shortcode_options', array( 'Jetpack_AMP_Support', 'videopress_enable_freedom_mode' ) ); |
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// include Jetpack og tags when rendering native AMP head |
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add_action( 'amp_post_template_head', array( 'Jetpack_AMP_Support', 'amp_post_jetpack_og_tags' ) ); |
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// Post rendering changes for legacy AMP |
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add_action( 'pre_amp_render_post', array( 'Jetpack_AMP_Support', 'amp_disable_the_content_filters' ) ); |
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// Add post template metadata for legacy AMP |
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add_filter( 'amp_post_template_metadata', array( 'Jetpack_AMP_Support', 'amp_post_template_metadata' ), 10, 2 ); |
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} |
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static function admin_init() { |
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// disable Likes metabox for post editor if AMP canonical disabled |
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add_filter( 'post_flair_disable', array( 'Jetpack_AMP_Support', 'is_amp_canonical' ), 99 ); |
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} |
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static function is_amp_canonical() { |
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return function_exists( 'amp_is_canonical' ) && amp_is_canonical(); |
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} |
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static function is_amp_request() { |
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$is_amp_request = ( function_exists( 'is_amp_endpoint' ) && is_amp_endpoint() ); |
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/** |
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* Returns true if the current request should return valid AMP content. |
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* |
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* @since 6.2.0 |
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* |
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* @param boolean $is_amp_request Is this request supposed to return valid AMP content? |
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*/ |
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return apply_filters( 'jetpack_is_amp_request', $is_amp_request ); |
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} |
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/** |
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* Returns whether the request is not AMP. |
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* |
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* @see Jetpack_AMP_Support::is_amp_request() |
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* @return bool Whether not AMP. |
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*/ |
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static function is_not_amp_request() { |
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return ! self::is_amp_request(); |
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} |
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static function amp_disable_the_content_filters() { |
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if ( defined( 'WPCOM') && WPCOM ) { |
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add_filter( 'videopress_show_2015_player', '__return_true' ); |
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add_filter( 'protected_embeds_use_form_post', '__return_false' ); |
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remove_filter( 'the_title', 'widont' ); |
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} |
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remove_filter( 'pre_kses', array( 'Filter_Embedded_HTML_Objects', 'filter' ), 11 ); |
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remove_filter( 'pre_kses', array( 'Filter_Embedded_HTML_Objects', 'maybe_create_links' ), 100 ); |
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} |
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/** |
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* Add Jetpack stats pixel. |
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* |
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* @since 6.2.1 |
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*/ |
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static function add_stats_pixel() { |
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if ( ! has_action( 'wp_footer', 'stats_footer' ) ) { |
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return; |
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} |
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stats_render_amp_footer( stats_build_view_data() ); |
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} |
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/** |
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* Add publisher and image metadata to legacy AMP post. |
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* |
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* @since 6.2.0 |
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* |
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* @param array $metadata Metadata array. |
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* @param WP_Post $post Post. |
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* @return array Modified metadata array. |
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*/ |
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static function amp_post_template_metadata( $metadata, $post ) { |
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if ( isset( $metadata['publisher'] ) && ! isset( $metadata['publisher']['logo'] ) ) { |
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$metadata = self::add_site_icon_to_metadata( $metadata ); |
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} |
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if ( ! isset( $metadata['image'] ) ) { |
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$metadata = self::add_image_to_metadata( $metadata, $post ); |
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} |
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return $metadata; |
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} |
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/** |
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* Add blavatar to legacy AMP post metadata. |
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* |
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* @since 6.2.0 |
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* |
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* @param array $metadata Metadata. |
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* @return array Metadata. |
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*/ |
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static function add_site_icon_to_metadata( $metadata ) { |
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$size = 60; |
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if ( function_exists( 'blavatar_domain' ) ) { |
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$metadata['publisher']['logo'] = array( |
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'@type' => 'ImageObject', |
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'url' => blavatar_url( blavatar_domain( site_url() ), 'img', $size, self::staticize_subdomain( 'https://wordpress.com/i/favicons/apple-touch-icon-60x60.png' ) ), |
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'width' => $size, |
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'height' => $size, |
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); |
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} else if ( $site_icon_url = Jetpack_Sync_Functions::site_icon_url( $size ) ) { |
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$metadata['publisher']['logo'] = array( |
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'@type' => 'ImageObject', |
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'url' => $site_icon_url, |
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'width' => $size, |
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'height' => $size, |
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); |
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} |
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return $metadata; |
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} |
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/** |
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* Add image to legacy AMP post metadata. |
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* |
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* @since 6.2.0 |
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* |
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* @param array $metadata Metadata. |
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* @param WP_Post $post Post. |
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* @return array Metadata. |
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*/ |
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static function add_image_to_metadata( $metadata, $post ) { |
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$image = Jetpack_PostImages::get_image( $post->ID, array( |
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'fallback_to_avatars' => true, |
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'avatar_size' => 200, |
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// AMP already attempts these. |
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'from_thumbnail' => false, |
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'from_attachment' => false, |
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) ); |
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if ( empty( $image ) ) { |
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return self::add_fallback_image_to_metadata( $metadata ); |
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} |
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if ( ! isset( $image['src_width'] ) ) { |
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$dimensions = self::extract_image_dimensions_from_getimagesize( array( |
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$image['src'] => false, |
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) ); |
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View Code Duplication |
if ( false !== $dimensions[ $image['src'] ] ) { |
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$image['src_width'] = $dimensions['width']; |
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$image['src_height'] = $dimensions['height']; |
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} |
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} |
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$metadata['image'] = array( |
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'@type' => 'ImageObject', |
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'url' => $image['src'], |
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); |
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if ( isset( $image['src_width'] ) ) { |
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$metadata['image']['width'] = $image['src_width']; |
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} |
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if ( isset( $image['src_width'] ) ) { |
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$metadata['image']['height'] = $image['src_height']; |
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} |
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return $metadata; |
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} |
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/** |
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* Add fallback image to legacy AMP post metadata. |
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* |
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* @since 6.2.0 |
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* |
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* @param array $metadata Metadata. |
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* @return array Metadata. |
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*/ |
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static function add_fallback_image_to_metadata( $metadata ) { |
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/** This filter is documented in functions.opengraph.php */ |
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$default_image = apply_filters( 'jetpack_open_graph_image_default', 'https://wordpress.com/i/blank.jpg' ); |
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$metadata['image'] = array( |
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'@type' => 'ImageObject', |
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'url' => self::staticize_subdomain( $default_image ), |
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'width' => 200, |
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'height' => 200, |
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); |
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return $metadata; |
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} |
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static function staticize_subdomain( $domain ) { |
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// deal with WPCOM vs Jetpack |
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if ( function_exists( 'staticize_subdomain' ) ) { |
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return staticize_subdomain( $domain ); |
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} else { |
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return Jetpack::staticize_subdomain( $domain ); |
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} |
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} |
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/** |
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* Extract image dimensions via wpcom/imagesize, only on WPCOM |
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* |
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* @since 6.2.0 |
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* |
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* @param array $dimensions Dimensions. |
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* @return array Dimensions. |
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*/ |
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static function extract_image_dimensions_from_getimagesize( $dimensions ) { |
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if ( ! ( defined('WPCOM') && WPCOM && function_exists( 'require_lib' ) ) ) { |
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return $dimensions; |
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} |
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require_lib( 'wpcom/imagesize' ); |
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foreach ( $dimensions as $url => $value ) { |
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if ( is_array( $value ) ) { |
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continue; |
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} |
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$result = wpcom_getimagesize( $url ); |
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if ( is_array( $result ) ) { |
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$dimensions[ $url ] = array( |
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'width' => $result[0], |
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'height' => $result[1], |
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); |
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} |
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} |
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return $dimensions; |
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} |
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static function amp_post_jetpack_og_tags() { |
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Jetpack::init()->check_open_graph(); |
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if ( function_exists( 'jetpack_og_tags' ) ) { |
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jetpack_og_tags(); |
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} |
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} |
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static function videopress_enable_freedom_mode( $options ) { |
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if ( self::is_amp_request() ) { |
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$options['freedom'] = true; |
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} |
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return $options; |
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} |
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static function render_sharing_html( $markup, $sharing_enabled ) { |
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if ( ! self::is_amp_request() ) { |
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return $markup; |
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} |
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remove_action( 'wp_footer', 'sharing_add_footer' ); |
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if ( empty( $sharing_enabled ) ) { |
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return $markup; |
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} |
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$supported_services = array( |
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'facebook' => array( |
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/** This filter is documented in modules/sharedaddy/sharing-sources.php */ |
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'data-param-app_id' => apply_filters( 'jetpack_sharing_facebook_app_id', '249643311490' ), |
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), |
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'twitter' => array(), |
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'pinterest' => array(), |
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'whatsapp' => array(), |
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'google-plus-1' => array( |
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'type' => 'gplus', |
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), |
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'tumblr' => array(), |
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'linkedin' => array(), |
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); |
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$sharing_links = array(); |
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foreach ( $sharing_enabled['visible'] as $id => $service ) { |
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if ( ! isset( $supported_services[ $id ] ) ) { |
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$sharing_links[] = "<!-- not supported: $id -->"; |
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continue; |
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} |
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$args = array_merge( |
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array( |
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'type' => $id, |
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), |
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$supported_services[ $id ] |
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); |
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$sharing_link = '<amp-social-share'; |
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foreach ( $args as $key => $value ) { |
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$sharing_link .= sprintf( ' %s="%s"', sanitize_key( $key ), esc_attr( $value ) ); |
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} |
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$sharing_link .= '></amp-social-share>'; |
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$sharing_links[] = $sharing_link; |
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} |
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return preg_replace( '#(?<=<div class="sd-content">).+?(?=</div>)#s', implode( '', $sharing_links ), $markup ); |
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} |
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} |
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add_action( 'init', array( 'Jetpack_AMP_Support', 'init' ), 1 ); |
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add_action( 'admin_init', array( 'Jetpack_AMP_Support', 'admin_init' ), 1 ); |
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