128 lines
3.5 KiB
PHP
128 lines
3.5 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 Canard
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*/
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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 canard_body_classes( $classes ) {
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// Adds a class of group-blog to blogs with more than 1 published author.
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if ( is_multi_author() ) {
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$classes[] = 'group-blog';
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}
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return $classes;
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}
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add_filter( 'body_class', 'canard_body_classes' );
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if ( version_compare( $GLOBALS['wp_version'], '4.1', '<' ) ) :
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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 canard_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 || $page >= 2 ) && ! is_404() ) {
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$title .= " $sep " . sprintf( __( 'Page %s', 'canard' ), 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', 'canard_wp_title', 10, 2 );
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/**
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* Title shim for sites older than WordPress 4.1.
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*
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* @link https://make.wordpress.org/core/2014/10/29/title-tags-in-4-1/
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* @todo Remove this function when WordPress 4.3 is released.
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*/
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function canard_render_title() {
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?>
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<title><?php wp_title( '|', true, 'right' ); ?></title>
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<?php
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}
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add_action( 'wp_head', 'canard_render_title' );
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endif;
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if ( ! function_exists( 'canard_excerpt_more' ) && ! is_admin() ) :
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/**
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* Replaces "[...]" (appended to automatically generated excerpts) with ...
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*
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* @since Canard 1.0.3
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*/
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function canard_excerpt_more( $more ) {
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return ' …';
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}
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add_filter( 'excerpt_more', 'canard_excerpt_more' );
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endif;
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if ( ! function_exists( 'canard_continue_reading' ) && ! is_admin() ) :
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/**
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* Adds a "Continue reading" link to all instances of the_excerpt
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*
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* @since Canard 1.0.4
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*
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* @return string The excerpt with a 'Continue reading' link appended.
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*/
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function canard_continue_reading( $the_excerpt ) {
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$the_excerpt = sprintf( '%1$s <a href="%2$s" class="more-link">%3$s</a>',
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$the_excerpt,
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esc_url( get_permalink( get_the_ID() ) ),
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/* translators: %s: Name of current post */
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sprintf( __( 'Continue reading %s', 'canard' ), '<span class="screen-reader-text">' . get_the_title( get_the_ID() ) . '</span>' )
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);
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return $the_excerpt;
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}
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add_filter( 'the_excerpt', 'canard_continue_reading', 9 );
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endif;
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/**
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* Custom lenght of the excerpt.
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*/
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function canard_excerpt_length( $length ) {
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return 65;
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}
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add_filter( 'excerpt_length', 'canard_excerpt_length', 999 );
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/**
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* Returns the URL from the post.
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*
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* @uses get_the_link() to get the URL in the post meta (if it exists) or
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* the first link found in the post content.
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*
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* Falls back to the post permalink if no URL is found in the post.
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*
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* @return string URL
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*/
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function canard_get_link_url() {
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$content = get_the_content();
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$has_url = get_url_in_content( $content );
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return ( $has_url && has_post_format( 'link' ) ) ? $has_url : apply_filters( 'the_permalink', get_permalink() );
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}
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