WordPress/wp-includes/post-formats.php

1023 lines
29 KiB
PHP

<?php
/**
* Post format functions.
*
* @package WordPress
* @subpackage Post
*/
/**
* Retrieve the format slug for a post
*
* @since 3.1.0
*
* @param int|object $post Post ID or post object. Optional, default is the current post from the loop.
* @return mixed The format if successful. False otherwise.
*/
function get_post_format( $post = null ) {
if ( ! $post = get_post( $post ) )
return false;
if ( ! post_type_supports( $post->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(
'<a %shref="%s">%s</a>',
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 <img> in <a>
if ( ! empty( $meta['url'] ) && false === strpos( $meta['image'], '<a ' ) ) {
$meta['image'] = preg_replace(
'#(<img[^>]+>)#',
sprintf( '<a href="%s">$1</a>', 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(
'<img %ssrc="%s" alt="" />',
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, '<a ' ) ) {
$format_output .= sprintf(
'<a href="%s">%s</a>',
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( '</%s>', 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 = '<dl class="chat">';
$stanzas = get_the_post_format_chat();
foreach ( $stanzas as $stanza ) {
foreach ( $stanza as $row ) {
$time = '';
if ( ! empty( $row['time'] ) )
$time = sprintf( '<time class="chat-timestamp">%s</time>', esc_html( $row['time'] ) );
$output .= sprintf(
'<dt class="chat-author chat-author-%1$s vcard">%2$s <cite class="fn">%3$s</cite>: </dt>
<dd class="chat-text">%4$s</dd>
',
esc_attr( sanitize_title_with_dashes( $row['author'] ) ), // Slug.
$time,
esc_html( $row['author'] ),
$row['message']
);
}
}
$output .= '</dl><!-- .chat -->';
echo $output;
}
/**
* Get the first <blockquote> 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[^>]*>(.+?)<\/blockquote>/is', $content, $matches ) ) {
$quote = $content;
if ( $remove || ! empty( $replace ) )
$content = $replace;
return $quote;
}
if ( $remove || ! empty( $replace ) )
$content = preg_replace( '/<blockquote[^>]*>(.+?)<\/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( '<blockquote>%s</blockquote>', 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( '<a href="%s">%s</a>', esc_url( $meta['quote_source_url'] ), $meta['quote_source_name'] );
$source = sprintf( apply_filters( 'quote_source_format', __( '&#8212;&#160;%s' ) ), $source );
$quote .= sprintf( '<figcaption class="quote-caption">%s</figcaption>', $source );
}
if ( ! empty( $quote ) )
$quote = sprintf( '<figure class="quote">%s</figure>', $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( '/<a\s[^>]*?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.
* @param int $id Optional. A post id. Defaults to the current post when in The Loop, undefined otherwise.
* @return string The content minus the extracted post format content.
*/
function get_the_remaining_content( $more_link_text = null, $strip_teaser = false, $id = 0 ) {
global $more, $page, $preview;
$post = get_post( $id );
extract( wp_parse_post_content( $post, true ) );
if ( null === $more_link_text )
$more_link_text = __( '(more&hellip;)' );
$output = '';
$has_teaser = false;
// If post password required and it doesn't match the cookie.
if ( post_password_required( $post ) )
return get_the_password_form( $post );
if ( $page > count( $pages ) ) // if the requested page doesn't exist
$page = count( $pages ); // give them the highest numbered page that DOES exist
$content = $pages[$page-1];
if ( preg_match( '/<!--more(.*?)?-->/', $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, '<!--noteaser-->' ) && ( ! $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 .= '<span id="more-' . $post->ID . '"></span>' . $content[1];
} else {
if ( ! empty( $more_link_text ) )
$output .= apply_filters( 'the_content_more_link', ' <a href="' . get_permalink() . "#more-{$post->ID}\" class=\"more-link\">$more_link_text</a>", $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.
* @param int $id Optional. A post id. Defaults to the current post when in The Loop, undefined otherwise.
*/
function the_remaining_content( $more_link_text = null, $strip_teaser = false, $id = 0 ) {
$post = get_post( $id );
$extra = get_the_remaining_content( $more_link_text, $strip_teaser, $post->ID );
remove_filter( 'the_content', 'post_formats_compat', 7 );
$content = apply_filters( 'the_content', $extra, $post->ID );
add_filter( 'the_content', 'post_formats_compat', 7, 2 );
echo str_replace( ']]>', ']]&gt;', $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;
}