From 00c9709fd9763542e848f6278db8ba26af5c9886 Mon Sep 17 00:00:00 2001
From: Max
Date: Mon, 15 Oct 2018 23:46:42 +0200
Subject: Initial commit.

---
 inc/extras.php | 114 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 inc/extras.php

(limited to 'inc/extras.php')

diff --git a/inc/extras.php b/inc/extras.php
new file mode 100644
index 0000000..94f7485
--- /dev/null
+++ b/inc/extras.php
@@ -0,0 +1,114 @@
+<?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>&nbsp;%title', 'Previous post link', 'understrap' ) );
+							}
+							if ( get_next_post_link() ) {
+								next_post_link( '<span class="col nav-next text-right">%link</span>',     _x( '%title&nbsp;<i class="fa fa-angle-right"></i>', 'Next post link', 'understrap' ) );
+							}
+						?>
+					</div><!-- .nav-links -->
+				</nav><!-- .navigation -->
+
+		<?php
+	}
+}
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