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<?php
/**
* Custom functions that act independently of the theme templates.
*
* Eventually, some of the functionality here could be replaced by core features.
*
* @package understrap
*/
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly.
}
add_filter( 'body_class', 'understrap_body_classes' );
if ( ! function_exists( 'understrap_body_classes' ) ) {
/**
* Adds custom classes to the array of body classes.
*
* @param array $classes Classes for the body element.
*
* @return array
*/
function understrap_body_classes( $classes ) {
// Adds a class of group-blog to blogs with more than 1 published author.
if ( is_multi_author() ) {
$classes[] = 'group-blog';
}
// Adds a class of hfeed to non-singular pages.
if ( ! is_singular() ) {
$classes[] = 'hfeed';
}
return $classes;
}
}
// Removes tag class from the body_class array to avoid Bootstrap markup styling issues.
add_filter( 'body_class', 'understrap_adjust_body_class' );
if ( ! function_exists( 'understrap_adjust_body_class' ) ) {
/**
* Setup body classes.
*
* @param string $classes CSS classes.
*
* @return mixed
*/
function understrap_adjust_body_class( $classes ) {
foreach ( $classes as $key => $value ) {
if ( 'tag' == $value ) {
unset( $classes[ $key ] );
}
}
return $classes;
}
}
// Filter custom logo with correct classes.
add_filter( 'get_custom_logo', 'understrap_change_logo_class' );
if ( ! function_exists( 'understrap_change_logo_class' ) ) {
/**
* Replaces logo CSS class.
*
* @param string $html Markup.
*
* @return mixed
*/
function understrap_change_logo_class( $html ) {
$html = str_replace( 'class="custom-logo"', 'class="img-fluid"', $html );
$html = str_replace( 'class="custom-logo-link"', 'class="navbar-brand custom-logo-link"', $html );
$html = str_replace( 'alt=""', 'title="Home" alt="logo"' , $html );
return $html;
}
}
/**
* Display navigation to next/previous post when applicable.
*/
if ( ! function_exists ( 'understrap_post_nav' ) ) {
function understrap_post_nav() {
// Don't print empty markup if there's nowhere to navigate.
$previous = ( is_attachment() ) ? get_post( get_post()->post_parent ) : get_adjacent_post( false, '', true );
$next = get_adjacent_post( false, '', false );
if ( ! $next && ! $previous ) {
return;
}
?>
<nav class="container navigation post-navigation">
<h2 class="sr-only"><?php _e( 'Post navigation', 'understrap' ); ?></h2>
<div class="row nav-links justify-content-between">
<?php
if ( get_previous_post_link() ) {
previous_post_link( '<span class="col nav-previous text-left">%link</span>', _x( '<i class="fa fa-angle-left"></i> %title', 'Previous post link', 'understrap' ) );
}
if ( get_next_post_link() ) {
next_post_link( '<span class="col nav-next text-right">%link</span>', _x( '%title <i class="fa fa-angle-right"></i>', 'Next post link', 'understrap' ) );
}
?>
</div><!-- .nav-links -->
</nav><!-- .navigation -->
<?php
}
}
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