tag based on what is being viewed.
*
* @param string $title Default title text for current view.
* @param string $sep Optional separator.
* @return string The filtered title.
*/
function illustratr_wp_title( $title, $sep ) {
if ( is_feed() ) {
return $title;
}
global $page, $paged;
// Add the blog name
$title .= get_bloginfo( 'name', 'display' );
// Add the blog description for the home/front page.
$site_description = get_bloginfo( 'description', 'display' );
if ( $site_description && ( is_home() || is_front_page() ) ) {
$title .= " $sep $site_description";
}
// Add a page number if necessary:
if ( $paged >= 2 || $page >= 2 ) {
$title .= " $sep " . sprintf( __( 'Page %s', 'illustratr' ), max( $paged, $page ) );
}
return $title;
}
add_filter( 'wp_title', 'illustratr_wp_title', 10, 2 );
/**
* Sets the authordata global when viewing an author archive.
*
* This provides backwards compatibility with
* http://core.trac.wordpress.org/changeset/25574
*
* It removes the need to call the_post() and rewind_posts() in an author
* template to print information about the author.
*
* @global WP_Query $wp_query WordPress Query object.
* @return void
*/
function illustratr_setup_author() {
global $wp_query;
if ( $wp_query->is_author() && isset( $wp_query->post ) ) {
$GLOBALS['authordata'] = get_userdata( $wp_query->post->post_author );
}
}
add_action( 'wp', 'illustratr_setup_author' );
/**
* Returns the URL from the post.
*
* @uses get_the_link() to get the URL in the post meta (if it exists) or
* the first link found in the post content.
*
* Falls back to the post permalink if no URL is found in the post.
*
* @return string URL
*/
function illustratr_get_link_url() {
$content = get_the_content();
$has_url = get_url_in_content( $content );
return ( $has_url ) ? $has_url : apply_filters( 'the_permalink', get_permalink() );
}
/**
* Use … instead of [...] for excerpts.
*/
function illustratr_excerpt_more( $more ) {
return '…';
}
add_filter( 'excerpt_more', 'illustratr_excerpt_more' );
/**
* Wrap more link
*/
function illustratr_more_link( $link ) {
return '' . $link . '
';
}
add_filter( 'the_content_more_link', 'illustratr_more_link' );
/**
* Remove WordPress's default padding on images with captions
*
* @param int $width Default WP .wp-caption width (image width + 10px)
* @return int Updated width to remove 10px padding
*/
function illustratr_remove_caption_padding( $width ) {
return $width - 10;
}
add_filter( 'img_caption_shortcode_width', 'illustratr_remove_caption_padding' );
/**
* Remove the 1st gallery shortcode from gallery post format content.
*/
function illustratr_strip_first_gallery( $content ) {
if ( 'gallery' === get_post_format() && 'post' === get_post_type() && get_post_gallery() ) {
$regex = get_shortcode_regex( array( 'gallery' ) );
$content = preg_replace( '/'. $regex .'/s', '', $content, 1 );
$content = wp_kses_post( $content );
}
return $content;
}
add_filter( 'the_content', 'illustratr_strip_first_gallery' );
/**
* Checking for the existence of a Gravatar
*/
function illustratr_validate_gravatar( $email ) {
$hash = md5( strtolower( trim( $email ) ) );
$uri = 'http://www.gravatar.com/avatar/' . $hash . '?d=404';
$headers = @get_headers( $uri );
if ( ! preg_match( "|200|", $headers[0] ) ) {
$has_valid_avatar = false;
} else {
$has_valid_avatar = true;
}
return $has_valid_avatar;
}
/**
* Adds a wrapper to videos and enqueue script
*
* @return string
*/
function illustratr_videos_embed_html( $html ) {
if ( empty( $html ) || ! is_string( $html ) ) {
return $html;
}
wp_enqueue_script( 'illustratr-responsive-videos', get_template_directory_uri() . '/js/responsive-videos.js', array( 'jquery', 'underscore' ), '20140320', true );
return '' . $html . '
';
}
add_filter( 'wp_video_shortcode', 'illustratr_videos_embed_html' );
add_filter( 'video_embed_html', 'illustratr_videos_embed_html' );
add_filter( 'embed_oembed_html', 'illustratr_videos_maybe_wrap_oembed', 10, 2 );
add_filter( 'embed_handler_html', 'illustratr_videos_maybe_wrap_oembed', 10, 2 );
/**
* Check if oEmbed is YouTube or Vimeo before wrapping.
*
* @return string
*/
function illustratr_videos_maybe_wrap_oembed( $html, $url ) {
if ( empty( $html ) || ! is_string( $html ) || ! $url ) {
return $html;
}
$video_wrapper = '';
$already_wrapped = strpos( $html, $video_wrapper );
// If the oEmbed has already been wrapped, return the html.
if ( false !== $already_wrapped ) {
return $html;
}
/**
* oEmbed Video Providers.
*
* A whitelist of oEmbed video provider Regex patterns to check against before wrapping the output.
*
* @param array $video_patterns oEmbed video provider Regex patterns.
*/
$video_patterns = apply_filters( 'illustratr_videos_oembed_videos', array(
'https?://((m|www)\.)?youtube\.com/watch',
'https?://((m|www)\.)?youtube\.com/playlist',
'https?://youtu\.be/',
'https?://(.+\.)?vimeo\.com/',
'https?://(www\.)?dailymotion\.com/',
'https?://dai.ly/',
'https?://(www\.)?hulu\.com/watch/',
'https?://wordpress.tv/',
'https?://(www\.)?funnyordie\.com/videos/',
'https?://vine.co/v/',
'https?://(www\.)?collegehumor\.com/video/',
'https?://(www\.|embed\.)?ted\.com/talks/'
) );
// Merge patterns to run in a single preg_match call.
$video_patterns = '(' . implode( '|', $video_patterns ) . ')';
$is_video = preg_match( $video_patterns, $url );
// If the oEmbed is a video, wrap it in the responsive wrapper.
if ( false === $already_wrapped && 1 === $is_video ) {
return illustratr_videos_embed_html( $html );
}
return $html;
}