276 lines
8.1 KiB
PHP
276 lines
8.1 KiB
PHP
<?php
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/**
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* Custom functions that act independently of the theme templates
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*
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* Eventually, some of the functionality here could be replaced by core features
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*
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* @package Illustratr
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*/
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/**
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* Get our wp_nav_menu() fallback, wp_page_menu(), to show a home link.
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*
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* @param array $args Configuration arguments.
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* @return array
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*/
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function illustratr_page_menu_args( $args ) {
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$args['show_home'] = true;
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return $args;
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}
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add_filter( 'wp_page_menu_args', 'illustratr_page_menu_args' );
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/**
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* Adds custom classes to the array of body classes.
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*
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* @param array $classes Classes for the body element.
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* @return array
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*/
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function illustratr_body_classes( $classes ) {
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// Adds a class of body-borders to blogs with default background settings.
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if ( ! get_background_image() ) {
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$classes[] = 'body-borders';
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}
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// Adds a class of group-blog to blogs with more than 1 published author.
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if ( is_multi_author() ) {
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$classes[] = 'group-blog';
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}
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// Adds a class of has-header-image to blogs with a header image.
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if ( get_header_image() ) {
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$classes[] = 'has-header-image';
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}
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// Adds a class of hide-portfolio-page-content to blogs if Theme Option hide portfolio page content is ticked and page is using the Portfolio Template
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if ( get_theme_mod( 'illustratr_hide_portfolio_page_content' ) && is_page_template( 'page-templates/portfolio-page.php' ) ) {
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$classes[] = 'hide-portfolio-page-content';
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}
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return $classes;
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}
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add_filter( 'body_class', 'illustratr_body_classes' );
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/**
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* Adds custom classes to the array of post classes.
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*
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* @param array $classes Classes for the post element.
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* @return array
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*/
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function illustratr_post_classes( $classes ) {
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// Adds a class of empty-entry-meta to pages/projects without any entry meta.
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$comments_status = false;
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$tags_list = false;
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if ( ! post_password_required() && ( comments_open() || '0' != get_comments_number() ) ) {
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$comments_status = true;
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}
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if ( 'jetpack-portfolio' == get_post_type() ) {
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$tags_list = get_the_term_list( get_the_ID(), 'jetpack-portfolio-tag' );
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}
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if ( ! current_user_can( 'edit_posts' ) && 'post' != get_post_type() && ! $comments_status && ! $tags_list ) {
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$classes[] = 'empty-entry-meta';
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}
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// Adds a class of portfolio-entry to portfolio projects.
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if ( 'jetpack-portfolio' == get_post_type() ) {
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$classes[] = 'portfolio-entry';
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}
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return $classes;
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}
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add_filter( 'post_class', 'illustratr_post_classes' );
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/**
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* Filters wp_title to print a neat <title> tag based on what is being viewed.
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*
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* @param string $title Default title text for current view.
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* @param string $sep Optional separator.
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* @return string The filtered title.
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*/
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function illustratr_wp_title( $title, $sep ) {
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if ( is_feed() ) {
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return $title;
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}
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global $page, $paged;
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// Add the blog name
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$title .= get_bloginfo( 'name', 'display' );
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// Add the blog description for the home/front page.
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$site_description = get_bloginfo( 'description', 'display' );
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if ( $site_description && ( is_home() || is_front_page() ) ) {
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$title .= " $sep $site_description";
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}
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// Add a page number if necessary:
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if ( $paged >= 2 || $page >= 2 ) {
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$title .= " $sep " . sprintf( __( 'Page %s', 'illustratr' ), max( $paged, $page ) );
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}
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return $title;
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}
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add_filter( 'wp_title', 'illustratr_wp_title', 10, 2 );
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/**
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* Sets the authordata global when viewing an author archive.
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*
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* This provides backwards compatibility with
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* http://core.trac.wordpress.org/changeset/25574
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*
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* It removes the need to call the_post() and rewind_posts() in an author
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* template to print information about the author.
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*
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* @global WP_Query $wp_query WordPress Query object.
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* @return void
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*/
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function illustratr_setup_author() {
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global $wp_query;
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if ( $wp_query->is_author() && isset( $wp_query->post ) ) {
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$GLOBALS['authordata'] = get_userdata( $wp_query->post->post_author );
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}
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}
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add_action( 'wp', 'illustratr_setup_author' );
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/**
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* Returns the URL from the post.
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*
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* @uses get_the_link() to get the URL in the post meta (if it exists) or
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* the first link found in the post content.
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*
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* Falls back to the post permalink if no URL is found in the post.
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*
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* @return string URL
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*/
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function illustratr_get_link_url() {
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$content = get_the_content();
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$has_url = get_url_in_content( $content );
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return ( $has_url ) ? $has_url : apply_filters( 'the_permalink', get_permalink() );
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}
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/**
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* Use … instead of [...] for excerpts.
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*/
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function illustratr_excerpt_more( $more ) {
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return '…';
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}
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add_filter( 'excerpt_more', 'illustratr_excerpt_more' );
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/**
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* Wrap more link
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*/
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function illustratr_more_link( $link ) {
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return '<div class="more-link-wrapper">' . $link . '</div>';
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}
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add_filter( 'the_content_more_link', 'illustratr_more_link' );
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/**
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* Remove WordPress's default padding on images with captions
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*
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* @param int $width Default WP .wp-caption width (image width + 10px)
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* @return int Updated width to remove 10px padding
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*/
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function illustratr_remove_caption_padding( $width ) {
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return $width - 10;
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}
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add_filter( 'img_caption_shortcode_width', 'illustratr_remove_caption_padding' );
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/**
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* Remove the 1st gallery shortcode from gallery post format content.
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*/
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function illustratr_strip_first_gallery( $content ) {
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if ( 'gallery' === get_post_format() && 'post' === get_post_type() && get_post_gallery() ) {
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$regex = get_shortcode_regex( array( 'gallery' ) );
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$content = preg_replace( '/'. $regex .'/s', '', $content, 1 );
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$content = wp_kses_post( $content );
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}
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return $content;
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}
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add_filter( 'the_content', 'illustratr_strip_first_gallery' );
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/**
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* Checking for the existence of a Gravatar
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*/
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function illustratr_validate_gravatar( $email ) {
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$hash = md5( strtolower( trim( $email ) ) );
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$uri = 'http://www.gravatar.com/avatar/' . $hash . '?d=404';
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$headers = @get_headers( $uri );
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if ( ! preg_match( "|200|", $headers[0] ) ) {
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$has_valid_avatar = false;
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} else {
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$has_valid_avatar = true;
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}
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return $has_valid_avatar;
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}
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/**
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* Adds a wrapper to videos and enqueue script
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*
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* @return string
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*/
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function illustratr_videos_embed_html( $html ) {
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if ( empty( $html ) || ! is_string( $html ) ) {
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return $html;
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}
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wp_enqueue_script( 'illustratr-responsive-videos', get_template_directory_uri() . '/js/responsive-videos.js', array( 'jquery', 'underscore' ), '20140320', true );
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return '<div class="video-wrapper">' . $html . '</div>';
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}
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add_filter( 'wp_video_shortcode', 'illustratr_videos_embed_html' );
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add_filter( 'video_embed_html', 'illustratr_videos_embed_html' );
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add_filter( 'embed_oembed_html', 'illustratr_videos_maybe_wrap_oembed', 10, 2 );
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add_filter( 'embed_handler_html', 'illustratr_videos_maybe_wrap_oembed', 10, 2 );
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/**
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* Check if oEmbed is YouTube or Vimeo before wrapping.
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*
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* @return string
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*/
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function illustratr_videos_maybe_wrap_oembed( $html, $url ) {
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if ( empty( $html ) || ! is_string( $html ) || ! $url ) {
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return $html;
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}
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$video_wrapper = '<div class="video-wrapper">';
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$already_wrapped = strpos( $html, $video_wrapper );
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// If the oEmbed has already been wrapped, return the html.
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if ( false !== $already_wrapped ) {
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return $html;
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}
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/**
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* oEmbed Video Providers.
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*
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* A whitelist of oEmbed video provider Regex patterns to check against before wrapping the output.
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*
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* @param array $video_patterns oEmbed video provider Regex patterns.
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*/
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$video_patterns = apply_filters( 'illustratr_videos_oembed_videos', array(
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'https?://((m|www)\.)?youtube\.com/watch',
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'https?://((m|www)\.)?youtube\.com/playlist',
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'https?://youtu\.be/',
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'https?://(.+\.)?vimeo\.com/',
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'https?://(www\.)?dailymotion\.com/',
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'https?://dai.ly/',
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'https?://(www\.)?hulu\.com/watch/',
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'https?://wordpress.tv/',
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'https?://(www\.)?funnyordie\.com/videos/',
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'https?://vine.co/v/',
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'https?://(www\.)?collegehumor\.com/video/',
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'https?://(www\.|embed\.)?ted\.com/talks/'
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) );
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// Merge patterns to run in a single preg_match call.
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$video_patterns = '(' . implode( '|', $video_patterns ) . ')';
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$is_video = preg_match( $video_patterns, $url );
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// If the oEmbed is a video, wrap it in the responsive wrapper.
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if ( false === $already_wrapped && 1 === $is_video ) {
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return illustratr_videos_embed_html( $html );
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}
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return $html;
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}
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