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|int $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, 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 (optional) The post ID. * @return array The array of post format metadata. */ function get_post_format_meta( $post_id = 0 ) { $meta = get_post_meta( $post_id ); $keys = array( 'quote', 'quote_source_name', 'quote_source_url', 'link_url', 'gallery', 'audio_embed', 'video_embed', 'url', 'image' ); if ( empty( $meta ) ) return array_fill_keys( $keys, '' ); $upgrade = array( '_wp_format_quote_source' => 'quote_source_name', '_wp_format_audio' => 'audio_embed', '_wp_format_video' => 'video_embed' ); $format = get_post_format( $post_id ); if ( ! empty( $format ) ) { switch ( $format ) { case 'link': $upgrade['_wp_format_url'] = 'link_url'; break; case 'quote': $upgrade['_wp_format_url'] = 'quote_source_url'; break; } } $upgrade_keys = array_keys( $upgrade ); foreach ( $meta as $key => $values ) { if ( ! in_array( $key, $upgrade_keys ) ) continue; update_post_meta( $post_id, '_format_' . $upgrade[$key], reset( $values ) ); delete_post_meta( $post_id, $key ); } $values = array(); foreach ( $keys as $key ) { $value = get_post_meta( $post_id, '_format_' . $key, true ); $values[$key] = empty( $value ) ? '' : $value; } return apply_filters( 'post_format_meta', $values ); } /** * Returns an array of post format slugs to their translated and pretty display versions * * @since 3.1.0 * * @return array The array of translated post format names. */ 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 * * @uses get_post_format_strings() * * @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 * * @uses get_post_format_strings() * * @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 The post format slug. * @return string The post format term 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 The post format slug, such as status, quote, image, gallery, etc. * @return string Filtered post format content class. */ function get_post_format_content_class( $format ) { return apply_filters( 'post_format_content_class', 'post-format-content', $format ); } /** * Output the class for a post format content wrapper * * @since 3.6.0 * * @param string $format The post format slug, such as status, quote, image, gallery, etc. */ 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 * * @uses get_post_format_meta() * * @param string $content The post content. * @param int $post_id (optional) The post ID. * @return string Formatted output based on associated post format. */ function post_formats_compat( $content, $post_id = 0 ) { if ( ! $post = get_post( $post_id ) ) return $content; $format = get_post_format( $post ); if ( empty( $format ) || in_array( $format, array( 'status', 'aside', 'chat', 'gallery' ) ) ) 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' => '', ); $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': if ( ! empty( $meta['link_url'] ) ) { $esc_url = preg_quote( $meta['link_url'], '#' ); // Make sure the same URL isn't in the post (modified/extended versions allowed) if ( ! preg_match( '#' . $esc_url . '[^/&\?]?#', $content ) ) { $url = $meta['link_url']; } else { $url = get_content_url( $content, true ); } } else { $content_before = $content; $url = get_content_url( $content, true ); if ( $content_before == $content ) $url = ''; } if ( ! empty( $url ) ) { $format_output .= sprintf( '%s', empty( $compat['link_class'] ) ? '' : sprintf( 'class="%s" ', esc_attr( $compat['link_class'] ) ), esc_url( $url ), empty( $post->post_title ) ? esc_url( $meta['link_url'] ) : apply_filters( 'the_title', $post->post_title, $post->ID ) ); } break; case 'image': if ( ! empty( $meta['image'] ) ) { if ( has_shortcode( $meta['image'], 'caption' ) ) { // wrap in if ( ! empty( $meta['url'] ) && false === strpos( $meta['image'], ']+>)#', sprintf( '$1', esc_url( $meta['url'] ) ), $meta['image'] ); } $format_output .= do_shortcode( $meta['image'] ); } else { if ( is_numeric( $meta['image'] ) ) { $image = wp_get_attachment_image( absint( $meta['image'] ), 'full' ); } elseif ( ! preg_match( '#<[^>]+>#', $meta['image'] ) ) { // not HTML, assume URL $image = sprintf( '', empty( $compat['image_class'] ) ? '' : sprintf( 'class="%s" ', esc_attr( $compat['image_class'] ) ), esc_url( $meta['image'] ) ); } else { // assume HTML $image = $meta['image']; } if ( ! empty( $meta['url'] ) && false === strpos( $image, '%s', esc_url( $meta['url'] ), $image ); } else { $format_output .= $image; } } } break; case 'quote': $quote = get_the_post_format_quote( $post ); // Replace the existing quote in-place. if ( ! empty( $quote ) ) get_content_quote( $content, true, $quote ); break; case 'video': case 'audio': if ( ! has_shortcode( $post->post_content, $format ) && ! empty( $meta[$format . '_embed'] ) ) { $value = $meta[$format . '_embed']; // the metadata is an attachment ID if ( is_numeric( $value ) ) { $url = wp_get_attachment_url( $value ); $format_output .= sprintf( '[%s src="%s"]', $format, $url ); // the metadata is a shortcode or an embed code } elseif ( preg_match( '/' . get_shortcode_regex() . '/s', $value ) || preg_match( '#<[^>]+>#', $value ) ) { $format_output .= $value; } elseif ( ! stristr( $content, $value ) ) { // attempt to embed the URL $format_output .= sprintf( '[embed]%s[/embed]', $value ); } } 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; } /** * Add chat detection support to the `get_content_chat()` chat parser. * * @since 3.6.0 * * @global array $_wp_chat_parsers * * @param string $name Unique identifier for chat format. Example: IRC * @param string $newline_regex RegEx to match the start of a new line, typically when a new "username:" appears * The parser will handle up to 3 matched expressions * $matches[0] = the string before the user's message starts * $matches[1] = the time of the message, if present * $matches[2] = the author/username * OR * $matches[0] = the string before the user's message starts * $matches[1] = the author/username * @param string $delimiter_regex RegEx to determine where to split the username syntax from the chat message */ function add_chat_detection_format( $name, $newline_regex, $delimiter_regex ) { global $_wp_chat_parsers; if ( empty( $_wp_chat_parsers ) ) $_wp_chat_parsers = array(); $_wp_chat_parsers = array( $name => array( $newline_regex, $delimiter_regex ) ) + $_wp_chat_parsers; } add_chat_detection_format( 'IM', '#^([^:]+):#', '#[:]#' ); add_chat_detection_format( 'Skype', '#(\[.+?\])\s([^:]+):#', '#[:]#' ); /** * Deliberately interpret passed content as a chat transcript that is optionally * followed by commentary * * If the content does not contain username syntax, assume that it does not contain * chat logs and return * * Example: * * One stanza of chat: * Scott: Hey, let's chat! * Helen: No. * * $stanzas = array( * array( * array( * 'time' => '', * 'author' => 'Scott', * 'messsage' => "Hey, let's chat!" * ), * array( * 'time' => '', * 'author' => 'Helen', * 'message' => 'No.' * ) * ) * ) * * @since 3.6.0 * * @param string $content A string which might contain chat data, passed by reference. * @param boolean $remove Whether to remove the found data from the passed content. * @return array A chat log as structured data */ function get_content_chat( &$content, $remove = false ) { global $_wp_chat_parsers; $trimmed = strip_tags( trim( $content ) ); if ( empty( $trimmed ) ) return array(); $matched_parser = false; foreach ( $_wp_chat_parsers as $parser ) { @list( $newline_regex, $delimiter_regex ) = $parser; if ( preg_match( $newline_regex, $trimmed ) ) { $matched_parser = $parser; break; } } if ( false === $matched_parser ) return array(); $last_index = 0; $stanzas = $data = $stanza = array(); $author = $time = ''; $lines = explode( "\n", make_clickable( $trimmed ) ); $found = false; $found_index = 0; foreach ( $lines as $index => $line ) { if ( ! $found ) $found_index = $index; $line = trim( $line ); if ( empty( $line ) && $found ) { if ( ! empty( $author ) ) { $stanza[] = array( 'time' => $time, 'author' => $author, 'message' => join( ' ', $data ) ); } $stanzas[] = $stanza; $stanza = $data = array(); $author = $time = ''; if ( ! empty( $lines[$index + 1] ) && ! preg_match( $delimiter_regex, $lines[$index + 1] ) ) break; else continue; } $matched = preg_match( $newline_regex, $line, $matches ); if ( ! $matched ) continue; $found = true; $last_index = $index; $author_match = empty( $matches[2] ) ? $matches[1] : $matches[2]; // assume username syntax if no whitespace is present $no_ws = $matched && ! preg_match( '#[\r\n\t ]#', $author_match ); // allow script-like stanzas $has_ws = $matched && preg_match( '#[\r\n\t ]#', $author_match ) && empty( $lines[$index + 1] ) && empty( $lines[$index - 1] ); if ( $matched && ( ! empty( $matches[2] ) || ( $no_ws || $has_ws ) ) ) { if ( ! empty( $author ) ) { $stanza[] = array( 'time' => $time, 'author' => $author, 'message' => join( ' ', $data ) ); $data = array(); } $time = empty( $matches[2] ) ? '' : $matches[1]; $author = $author_match; $data[] = trim( str_replace( $matches[0], '', $line ) ); } elseif ( preg_match( '#\S#', $line ) ) { $data[] = $line; } } if ( ! empty( $author ) ) { $stanza[] = array( 'time' => $time, 'author' => $author, 'message' => trim( join( ' ', $data ) ) ); } if ( ! empty( $stanza ) ) $stanzas[] = $stanza; if ( $remove ) { if ( 0 === $found_index ) { $removed = array_slice( $lines, $last_index ); } else { $before = array_slice( $lines, 0, $found_index ); $after = array_slice( $lines, $last_index + 1 ); $removed = array_filter( array_merge( $before, $after ) ); } $content = trim( join( "\n", $removed ) ); } return $stanzas; } /** * Retrieve structured chat data from the current or passed post * * @since 3.6.0 * * @param int $post_id (optional) The post ID. * @return array The chat content. */ function get_the_post_format_chat( $post_id = 0 ) { if ( ! $post = get_post( $post_id ) ) return array(); $data = get_content_chat( get_paged_content( $post->post_content ) ); if ( empty( $data ) ) return array(); return $data; } /** * Output HTML for a given chat's structured data. Themes can use this as a * template tag in place of the_content() for Chat post format templates. * * @since 3.6.0 * * @uses get_the_post_format_chat() * * @print HTML */ function the_post_format_chat() { $output = '
'; $stanzas = get_the_post_format_chat(); foreach ( $stanzas as $stanza ) { foreach ( $stanza as $row ) { $time = ''; if ( ! empty( $row['time'] ) ) $time = sprintf( '', esc_html( $row['time'] ) ); $output .= sprintf( '
%2$s %3$s:
%4$s
', esc_attr( sanitize_title_with_dashes( $row['author'] ) ), // Slug. $time, esc_html( $row['author'] ), $row['message'] ); } } $output .= '
'; echo $output; } /** * Get the first
from the $content string passed by reference. * * If $content does not have a blockquote, assume the whole string * is the quote. * * @since 3.6.0 * * @param string $content A string which might contain chat data, passed by reference. * @param bool $remove (optional) Whether to remove the quote from the content. * @param string $replace (optional) Content to replace the quote content with. * @return string The quote content. */ function get_content_quote( &$content, $remove = false, $replace = '' ) { if ( empty( $content ) ) return ''; if ( ! preg_match( '/]*>(.+?)<\/blockquote>/is', $content, $matches ) ) { $quote = $content; if ( $remove || ! empty( $replace ) ) $content = $replace; return $quote; } if ( $remove || ! empty( $replace ) ) $content = preg_replace( '/]*>(.+?)<\/blockquote>/is', addcslashes( $replace, '\\$' ), $content, 1 ); return $matches[1]; } /** * Get a quote from the post content and set split_content for future use. * * @since 3.6.0 * * @uses get_content_quote() * @uses apply_filters() Calls 'quote_source_format' filter to allow changing the typographical mark added to the quote source (em-dash prefix, by default) * * @param object $post (optional) A reference to the post object, falls back to get_post(). * @return string The quote html. */ function get_the_post_format_quote( &$post = null ) { if ( empty( $post ) ) $post = get_post(); if ( empty( $post ) ) return ''; $content = $post->post_content; $quote = get_content_quote( $content, true ); $post->split_content = $content; if ( ! empty( $quote ) ) $quote = sprintf( '
%s
', wpautop( $quote ) ); $meta = get_post_format_meta( $post->ID ); if ( ! empty( $meta['quote_source_name'] ) ) { $source = ( empty( $meta['quote_source_url'] ) ) ? $meta['quote_source_name'] : sprintf( '%s', esc_url( $meta['quote_source_url'] ), $meta['quote_source_name'] ); $source = sprintf( apply_filters( 'quote_source_format', __( '— %s' ) ), $source ); $quote .= sprintf( '
%s
', $source ); } if ( ! empty( $quote ) ) $quote = sprintf( '
%s
', $quote ); return $quote; } /** * Outputs the post format quote. * * @since 3.6.0 */ function the_post_format_quote() { echo get_the_post_format_quote(); } /** * Extract a URL from passed content, if possible * Checks for a URL on the first line of the content or the first encountered href attribute. * * @since 3.6.0 * * @param string $content A string which might contain a URL, passed by reference. * @param boolean $remove Whether to remove the found URL from the passed content. * @return string The found URL. */ function get_content_url( &$content, $remove = false ) { if ( empty( $content ) ) return ''; // the content is a URL $trimmed = trim( $content ); if ( 0 === stripos( $trimmed, 'http' ) && ! preg_match( '#\s#', $trimmed ) ) { if ( $remove ) $content = ''; return $trimmed; // the content is HTML so we grab the first href } elseif ( preg_match( '/]*?href=([\'"])(.+?)\1/is', $content, $matches ) ) { return esc_url_raw( $matches[2] ); } $lines = explode( "\n", $trimmed ); $line = trim( array_shift( $lines ) ); // the content is a URL followed by content if ( 0 === stripos( $line, 'http' ) ) { if ( $remove ) $content = trim( join( "\n", $lines ) ); return esc_url_raw( $line ); } return ''; } /** * Attempt to retrieve a URL from a post's content * * @since 3.6.0 * * @param int $post_id (optional) The post ID. * @return string A URL, if found. */ function get_the_post_format_url( $post_id = 0 ) { if ( ! $post = get_post( $post_id ) ) return ''; $format = get_post_format( $post->ID ); if ( in_array( $format, array( 'image', 'link', 'quote' ) ) ) { $meta = get_post_format_meta( $post->ID ); $meta_link = ''; switch ( $format ) { case 'link': if ( ! empty( $meta['link_url'] ) ) $meta_link = $meta['link_url']; break; case 'image': if ( ! empty( $meta['url'] ) ) $meta_link = $meta['url']; break; case 'quote': if ( ! empty( $meta['quote_source_url'] ) ) $meta_link = $meta['quote_source_url']; break; } if ( ! empty( $meta_link ) ) return apply_filters( 'get_the_post_format_url', esc_url_raw( $meta_link ), $post ); } if ( ! empty( $post->post_content ) ) return apply_filters( 'get_the_post_format_url', get_content_url( $post->post_content ), $post ); } /** * Attempt to output a URL from a post's content * * @since 3.6.0 *. */ function the_post_format_url() { echo esc_url( get_the_post_format_url() ); } /** * Retrieve the post content, minus the extracted post format content * * @since 3.6.0 * * @internal there is a lot of code that could be abstracted from get_the_content() * * @param string $more_link_text Optional. Content for when there is more text. * @param bool $strip_teaser Optional. Strip teaser content before the more text. Default is false. * @return string The content minus the extracted post format content. */ function get_the_remaining_content( $more_link_text = null, $strip_teaser = false ) { global $more, $page, $format_pages, $multipage, $preview; $post = get_post(); if ( null === $more_link_text ) $more_link_text = __( '(more…)' ); $output = ''; $has_teaser = false; // If post password required and it doesn't match the cookie. if ( post_password_required() ) return get_the_password_form(); if ( $page > count( $format_pages ) ) // if the requested page doesn't exist $page = count( $format_pages ); // give them the highest numbered page that DOES exist $content = $format_pages[$page-1]; if ( preg_match( '//', $content, $matches ) ) { $content = explode( $matches[0], $content, 2 ); if ( ! empty( $matches[1] ) && ! empty( $more_link_text ) ) $more_link_text = strip_tags( wp_kses_no_null( trim( $matches[1] ) ) ); $has_teaser = true; } else { $content = array( $content ); } if ( false !== strpos( $post->post_content, '' ) && ( ! $multipage || $page == 1 ) ) $strip_teaser = true; $teaser = $content[0]; if ( $more && $strip_teaser && $has_teaser ) $teaser = ''; $output .= $teaser; if ( count( $content ) > 1 ) { if ( $more ) { $output .= '' . $content[1]; } else { if ( ! empty( $more_link_text ) ) $output .= apply_filters( 'the_content_more_link', ' ID}\" class=\"more-link\">$more_link_text", $more_link_text ); $output = force_balance_tags( $output ); } } if ( $preview ) // preview fix for javascript bug with foreign languages $output = preg_replace_callback( '/\%u([0-9A-F]{4})/', '_convert_urlencoded_to_entities', $output ); return $output; } /** * Display the post content minus the parsed post format data. * * @since 3.6.0 * * @param string $more_link_text Optional. Content for when there is more text. * @param bool $strip_teaser Optional. Strip teaser content before the more text. Default is false. */ function the_remaining_content( $more_link_text = null, $strip_teaser = false ) { $extra = get_the_remaining_content( $more_link_text, $strip_teaser ); remove_filter( 'the_content', 'post_formats_compat', 7 ); $content = apply_filters( 'the_content', $extra ); add_filter( 'the_content', 'post_formats_compat', 7 ); echo str_replace( ']]>', ']]>', $content ); } /** * Don't display post titles for asides and status posts on the front end. * * @since 3.6.0 * @access private */ function _post_formats_title( $title, $post_id = 0 ) { if ( ! $post_id || is_admin() || is_feed() || ! in_array( get_post_format( $post_id ), array( 'aside', 'status' ) ) ) return $title; // Return an empty string only if the title is auto-generated. $post = get_post( $post_id ); if ( $title == _post_formats_generate_title( $post->post_content, get_post_format( $post_id ) ) ) $title = ''; return $title; } /** * Generate a title from the post content or format. * * @since 3.6.0 * @access private */ function _post_formats_generate_title( $content, $post_format = '' ) { $title = wp_trim_words( strip_shortcodes( $content ), 8, '' ); if ( empty( $title ) ) $title = get_post_format_string( $post_format ); return $title; } /** * Fixes empty titles for aside and status formats. * * Passes a generated post title to the 'wp_insert_post_data' filter. * * @since 3.6.0 * @access private * * @uses _post_formats_generate_title() */ function _post_formats_fix_empty_title( $data, $postarr ) { if ( 'auto-draft' == $data['post_status'] || ! post_type_supports( $data['post_type'], 'post-formats' ) ) return $data; $post_id = ( isset( $postarr['ID'] ) ) ? absint( $postarr['ID'] ) : 0; $post_format = ''; if ( $post_id ) $post_format = get_post_format( $post_id ); if ( isset( $postarr['post_format'] ) ) $post_format = ( in_array( $postarr['post_format'], get_post_format_slugs() ) ) ? $postarr['post_format'] : ''; if ( ! in_array( $post_format, array( 'aside', 'status' ) ) ) return $data; if ( $data['post_title'] == _post_formats_generate_title( $data['post_content'], $post_format ) ) return $data; // If updating an existing post, check whether the title was auto-generated. if ( $post_id && $post = get_post( $post_id ) ) if ( $post->post_title == $data['post_title'] && $post->post_title == _post_formats_generate_title( $post->post_content, get_post_format( $post->ID ) ) ) $data['post_title'] = ''; if ( empty( $data['post_title'] ) ) $data['post_title'] = _post_formats_generate_title( $data['post_content'], $post_format ); return $data; }