128 lines
3.6 KiB
PHP
128 lines
3.6 KiB
PHP
<?php
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if ( ! class_exists( 'Jetpack_Media_Summary' ) ) {
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if ( defined('IS_WPCOM') && IS_WPCOM ) {
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include WP_CONTENT_DIR . '/lib/class.wpcom-media-summary.php';
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} else {
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jetpack_require_lib( 'class.media-summary' );
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}
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}
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/**
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* Better OG Image Tags for Image Post Formats
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*/
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function enhanced_og_image( $tags ) {
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if ( !is_singular() || post_password_required() )
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return $tags;
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global $post;
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// Always favor featured images.
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if ( enhanced_og_has_featured_image( $post->ID ) )
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return $tags;
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$summary = Jetpack_Media_Summary::get( $post->ID );
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if ( 'image' != $summary['type'] )
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return $tags;
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$tags['og:image'] = $summary['image'];
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$tags['og:image:secure_url'] = $summary['secure']['image'];
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return $tags;
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}
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add_filter( 'jetpack_open_graph_tags', 'enhanced_og_image' );
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/**
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* Better OG Image Tags for Gallery Post Formats
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*/
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function enhanced_og_gallery( $tags ) {
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if ( !is_singular() || post_password_required() )
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return $tags;
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global $post;
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// Always favor featured images.
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if ( enhanced_og_has_featured_image( $post->ID ) )
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return $tags;
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$summary = Jetpack_Media_Summary::get( $post->ID );
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if ( 'gallery' != $summary['type'] )
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return $tags;
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if( !isset( $summary['images'] ) || !is_array( $summary['images'] ) || empty( $summary['images'] ) )
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return $tags;
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$images = $secures = array();
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foreach ( $summary['images'] as $i => $image ) {
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$images[] = $image['url'];
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$secures[] = $summary['secure']['images'][$i]['url'];
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}
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$tags['og:image'] = $images;
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$tags['og:image:secure_url'] = $secures;
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return $tags;
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}
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add_filter( 'jetpack_open_graph_tags', 'enhanced_og_gallery' );
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/**
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* Allows VideoPress, YouTube, and Vimeo videos to play inline on Facebook
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*/
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function enhanced_og_video( $tags ) {
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if ( !is_singular() || post_password_required() )
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return $tags;
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global $post;
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// Always favor featured images.
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if ( enhanced_og_has_featured_image( $post->ID ) )
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return $tags;
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$summary = Jetpack_Media_Summary::get( $post->ID );
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if ( 'video' != $summary['type'] ) {
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if ( $summary['count']['video'] > 0 && $summary['count']['image'] < 1 ) {
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$tags['og:image'] = $summary['image'];
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$tags['og:image:secure_url'] = $summary['secure']['image'];
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}
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return $tags;
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}
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$tags['og:image'] = $summary['image'];
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$tags['og:image:secure_url'] = $summary['secure']['image'];
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$tags['og:video:type'] = 'application/x-shockwave-flash';
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$video_url = $summary['video'];
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$secure_video_url = $summary['secure']['video'];
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if ( preg_match( '/((youtube|vimeo)\.com|youtu.be)/', $video_url ) ) {
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if ( strstr( $video_url, 'youtube' ) ) {
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$id = jetpack_get_youtube_id( $video_url );
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$video_url = 'http://www.youtube.com/v/' . $id . '?version=3&autohide=1';
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$secure_video_url = 'https://www.youtube.com/v/' . $id . '?version=3&autohide=1';
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} else if ( strstr( $video_url, 'vimeo' ) ) {
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preg_match( '|vimeo\.com/(\d+)/?$|i', $video_url, $match );
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$id = (int) $match[1];
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$video_url = 'http://vimeo.com/moogaloop.swf?clip_id=' . $id;
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$secure_video_url = 'https://vimeo.com/moogaloop.swf?clip_id=' . $id;
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}
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}
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$tags['og:video'] = $video_url;
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$tags['og:video:secure_url'] = $secure_video_url;
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if ( empty( $post->post_title ) )
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$tags['og:title'] = sprintf( __( 'Video on %s', 'jetpack' ), get_option( 'blogname' ) );
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return $tags;
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}
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add_filter( 'jetpack_open_graph_tags', 'enhanced_og_video' );
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function enhanced_og_has_featured_image( $post_id ) {
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$featured = Jetpack_PostImages::from_thumbnail( $post_id, 200, 200 );
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if ( !empty( $featured ) && count( $featured ) > 0 )
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return true;
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return false;
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}
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