post_type, 'post-formats' ) ) return false; $_format = get_the_terms( $post->ID, 'post_format' ); if ( empty( $_format ) ) return false; $format = array_shift( $_format ); return ( str_replace('post-format-', '', $format->slug ) ); } /** * Check if a post has a particular format * * @since 3.1.0 * @uses has_term() * * @param string $format The format to check for * @param object|id $post The post to check. If not supplied, defaults to the current post if used in the loop. * @return bool True if the post has the format, false otherwise. */ function has_post_format( $format, $post = null ) { return has_term('post-format-' . sanitize_key($format), 'post_format', $post); } /** * Assign a format to a post * * @since 3.1.0 * * @param int|object $post The post for which to assign a format * @param string $format A format to assign. Use an empty string or array to remove all formats from the post. * @return mixed WP_Error on error. Array of affected term IDs on success. */ function set_post_format( $post, $format ) { $post = get_post($post); if ( empty($post) ) return new WP_Error('invalid_post', __('Invalid post')); if ( !empty($format) ) { $format = sanitize_key($format); if ( 'standard' == $format || !in_array( $format, array_keys( get_post_format_slugs() ) ) ) $format = ''; else $format = 'post-format-' . $format; } return wp_set_post_terms($post->ID, $format, 'post_format'); } /** * Retrieve post format metadata for a post * * @since 3.6.0 * * @param int $post_id * @return null */ function get_post_format_meta( $post_id = 0 ) { $values = array( 'quote' => '', 'quote_source' => '', 'image' => '', 'url' => '', 'gallery' => '', 'media' => '', ); foreach ( $values as $key => $value ) $values[$key] = get_post_meta( $post_id, '_wp_format_' . $key, true ); return $values; } /** * Returns an array of post format slugs to their translated and pretty display versions * * @since 3.1.0 * * @return array The array of translations */ function get_post_format_strings() { $strings = array( 'standard' => _x( 'Standard', 'Post format' ), // Special case. any value that evals to false will be considered standard 'aside' => _x( 'Aside', 'Post format' ), 'chat' => _x( 'Chat', 'Post format' ), 'gallery' => _x( 'Gallery', 'Post format' ), 'link' => _x( 'Link', 'Post format' ), 'image' => _x( 'Image', 'Post format' ), 'quote' => _x( 'Quote', 'Post format' ), 'status' => _x( 'Status', 'Post format' ), 'video' => _x( 'Video', 'Post format' ), 'audio' => _x( 'Audio', 'Post format' ), ); return $strings; } /** * Retrieves an array of post format slugs. * * @since 3.1.0 * * @return array The array of post format slugs. */ function get_post_format_slugs() { $slugs = array_keys( get_post_format_strings() ); return array_combine( $slugs, $slugs ); } /** * Returns a pretty, translated version of a post format slug * * @since 3.1.0 * * @param string $slug A post format slug * @return string The translated post format name */ function get_post_format_string( $slug ) { $strings = get_post_format_strings(); if ( !$slug ) return $strings['standard']; else return ( isset( $strings[$slug] ) ) ? $strings[$slug] : ''; } /** * Returns a link to a post format index. * * @since 3.1.0 * * @param string $format Post format * @return string Link */ function get_post_format_link( $format ) { $term = get_term_by('slug', 'post-format-' . $format, 'post_format' ); if ( ! $term || is_wp_error( $term ) ) return false; return get_term_link( $term ); } /** * Filters the request to allow for the format prefix. * * @access private * @since 3.1.0 */ function _post_format_request( $qvs ) { if ( ! isset( $qvs['post_format'] ) ) return $qvs; $slugs = get_post_format_slugs(); if ( isset( $slugs[ $qvs['post_format'] ] ) ) $qvs['post_format'] = 'post-format-' . $slugs[ $qvs['post_format'] ]; $tax = get_taxonomy( 'post_format' ); if ( ! is_admin() ) $qvs['post_type'] = $tax->object_type; return $qvs; } add_filter( 'request', '_post_format_request' ); /** * Filters the post format term link to remove the format prefix. * * @access private * @since 3.1.0 */ function _post_format_link( $link, $term, $taxonomy ) { global $wp_rewrite; if ( 'post_format' != $taxonomy ) return $link; if ( $wp_rewrite->get_extra_permastruct( $taxonomy ) ) { return str_replace( "/{$term->slug}", '/' . str_replace( 'post-format-', '', $term->slug ), $link ); } else { $link = remove_query_arg( 'post_format', $link ); return add_query_arg( 'post_format', str_replace( 'post-format-', '', $term->slug ), $link ); } } add_filter( 'term_link', '_post_format_link', 10, 3 ); /** * Remove the post format prefix from the name property of the term object created by get_term(). * * @access private * @since 3.1.0 */ function _post_format_get_term( $term ) { if ( isset( $term->slug ) ) { $term->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) ); } return $term; } add_filter( 'get_post_format', '_post_format_get_term' ); /** * Remove the post format prefix from the name property of the term objects created by get_terms(). * * @access private * @since 3.1.0 */ function _post_format_get_terms( $terms, $taxonomies, $args ) { if ( in_array( 'post_format', (array) $taxonomies ) ) { if ( isset( $args['fields'] ) && 'names' == $args['fields'] ) { foreach( $terms as $order => $name ) { $terms[$order] = get_post_format_string( str_replace( 'post-format-', '', $name ) ); } } else { foreach ( (array) $terms as $order => $term ) { if ( isset( $term->taxonomy ) && 'post_format' == $term->taxonomy ) { $terms[$order]->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) ); } } } } return $terms; } add_filter( 'get_terms', '_post_format_get_terms', 10, 3 ); /** * Remove the post format prefix from the name property of the term objects created by wp_get_object_terms(). * * @access private * @since 3.1.0 */ function _post_format_wp_get_object_terms( $terms ) { foreach ( (array) $terms as $order => $term ) { if ( isset( $term->taxonomy ) && 'post_format' == $term->taxonomy ) { $terms[$order]->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) ); } } return $terms; } add_filter( 'wp_get_object_terms', '_post_format_wp_get_object_terms' ); /** * Return the class for a post format content wrapper * * @since 3.6.0 * * @param string $format */ function get_post_format_content_class( $format ) { return apply_filters( 'post_format_content_class', 'post-format-content', $format ); } /** * Ouput the class for a post format content wrapper * * @since 3.6.0 * * @param string $format */ function post_format_content_class( $format ) { echo get_post_format_content_class( $format ); } /** * Provide fallback behavior for Posts that have associated post format * * @since 3.6.0 * * @param string $content */ function post_formats_compat( $content, $id = 0 ) { $post = empty( $id ) ? get_post() : get_post( $id ); if ( empty( $post ) ) return $content; $format = get_post_format( $post ); if ( empty( $format ) || in_array( $format, array( 'status', 'aside', 'chat' ) ) ) return $content; if ( current_theme_supports( 'structured-post-formats', $format ) ) return $content; $defaults = array( 'position' => 'after', 'tag' => 'div', 'class' => get_post_format_content_class( $format ), 'link_class' => '', 'image_class' => '', ); $args = apply_filters( 'post_format_compat', array() ); $compat = wp_parse_args( $args, $defaults ); $show_content = true; $format_output = ''; $meta = get_post_format_meta( $post->ID ); switch ( $format ) { case 'link': $compat['tag'] = ''; if ( ! empty( $meta['url'] ) ) { $esc_url = preg_quote( $meta['url'], '#' ); // Make sure the same URL isn't in the post (modified/extended versions allowed) if ( ! preg_match( '#' . $esc_url . '[^/&\?]#', $content ) ) { $format_output .= sprintf( '%s', empty( $compat['link_class'] ) ? '' : sprintf( 'class="%s" ', esc_attr( $compat['link_class'] ) ), esc_url( $meta['url'] ), empty( $post->post_title ) ? esc_url( $meta['url'] ) : apply_filters( 'the_title', $post->post_title, $post->ID ) ); } } break; case 'quote': if ( ! empty( $meta['quote'] ) && ! stristr( $content, $meta['quote'] ) ) { $format_output .= sprintf( '
%s
', $meta['quote'] ); if ( ! empty( $meta['quote_source'] ) ) { $format_output .= sprintf( '%s', ! empty( $meta['url'] ) ? sprintf( '%s', esc_url( $meta['url'] ), $meta['quote_source'] ) : $meta['quote_source'] ); } } break; case 'image': if ( ! empty( $meta['image'] ) ) { $image = is_numeric( $meta['image'] ) ? wp_get_attachment_url( $meta['image'] ) : $meta['image']; if ( ! empty( $image ) && ! stristr( $content, $image ) ) { $image_html = sprintf( '', empty( $compat['image_class'] ) ? '' : sprintf( 'class="%s" ', esc_attr( $compat['image_class'] ) ), $image ); if ( empty( $meta['url'] ) ) { $format_output .= $image_html; } else { $format_output .= sprintf( '%s', esc_url( $meta['url'] ), $image_html ); } } } break; case 'gallery': preg_match_all( '/' . get_shortcode_regex() . '/s', $content, $matches ); if ( ! empty( $matches ) && isset( $matches[2] ) ) { foreach ( (array) $matches[2] as $match ) { if ( 'gallery' === $match ) break 2; // foreach + case } } if ( ! empty( $meta['gallery'] ) ) { $format_output .= $meta['gallery']; } break; case 'video': case 'audio': $shortcode_regex = '/' . get_shortcode_regex() . '/s'; $matches = preg_match( $shortcode_regex, $content ); if ( ! $matches || $format !== $matches[2] ) { if ( ! empty( $meta['media'] ) ) { // the metadata is a shortcode or an embed code if ( preg_match( $shortcode_regex, $meta['media'] ) || preg_match( '#<[^>]+>#', $meta['media'] ) ) { $format_output .= $meta['media']; } elseif ( ! stristr( $content, $meta['media'] ) ) { // attempt to embed the URL $format_output .= sprintf( '[embed]%s[/embed]', $meta['media'] ); } } } break; default: return $content; break; } if ( empty( $format_output ) ) return $content; $output = ''; if ( ! empty( $content ) && $show_content && 'before' !== $compat['position'] ) $output .= $content . "\n\n"; if ( ! empty( $compat['tag'] ) ) $output .= sprintf( '<%s class="%s">', tag_escape( $compat['tag'] ), esc_attr( $compat['class'] ) ); $output .= "\n\n" . $format_output; if ( ! empty( $compat['tag'] ) ) $output .= sprintf( '', tag_escape( $compat['tag'] ) ); if ( ! empty( $content ) && $show_content && 'before' === $compat['position'] ) $output .= "\n\n" . $content; return $output; }