path: root/functions.php

<?php
/**
 * Understrap functions and definitions
 *
 * @package understrap
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

/**
 * Initialize theme default settings
 */
require get_template_directory() . '/inc/theme-settings.php';

/**
 * Theme setup and custom theme supports.
 */
require get_template_directory() . '/inc/setup.php';

/**
 * Register widget area.
 */
require get_template_directory() . '/inc/widgets.php';

/**
 * Enqueue scripts and styles.
 */
require get_template_directory() . '/inc/enqueue.php';

/**
 * Custom template tags for this theme.
 */
require get_template_directory() . '/inc/template-tags.php';

/**
 * Custom pagination for this theme.
 */
require get_template_directory() . '/inc/pagination.php';

/**
 * Custom hooks.
 */
require get_template_directory() . '/inc/hooks.php';

/**
 * Custom functions that act independently of the theme templates.
 */
require get_template_directory() . '/inc/extras.php';

/**
 * Customizer additions.
 */
require get_template_directory() . '/inc/customizer.php';

/**
 * Custom Comments file.
 */
require get_template_directory() . '/inc/custom-comments.php';

/**
 * Load Jetpack compatibility file.
 */
require get_template_directory() . '/inc/jetpack.php';

/**
 * Load custom WordPress nav walker.
 */
require get_template_directory() . '/inc/class-wp-bootstrap-navwalker.php';

/**
 * Load WooCommerce functions.
 */
require get_template_directory() . '/inc/woocommerce.php';

/**
 * Load Editor functions.
 */
require get_template_directory() . '/inc/editor.php';

/**
 * # Modified
 */

/**
 * Load custom taxonomies.
 */
require get_template_directory() . '/taxonomy.php';

/**
 * Removes "Tag:" and "Category:" from archive pages.
 */
add_filter('get_the_archive_title', function ($title) {

	if ( is_tax('type') ) {
		$title = single_term_title( '', false );
		$title = 'Aktuelle ' . $title . "-Angebote";
	} else {
		$title = single_term_title( '', false );
	}
	return $title;
});

/**
 * Delays RSS-Feed by 60 minutes.
 */
function Delay_RSS_After_Publish($where) { 
        global $wpdb;
        if (is_feed()) {
                $now = gmdate('Y-m-d H:i:s');   
                $wait = '60'; 
                $device = 'MINUTE';             
                $where.=" AND TIMESTAMPDIFF($device, $wpdb->posts.post_date_gmt, '$now') > $wait ";
        }
        return $where;
}
add_filter('posts_where', 'Delay_RSS_After_Publish');

/**
 * Deaktiviert REST-API und entfernt die Header aus dem HTML.
 *
 * It seems it doesn't work though.
 */
add_filter('rest_enabled', '_return_false');
add_filter('rest_jsonp_enabled', '_return_false'); 
remove_action( 'wp_head', 'rest_output_link_wp_head', 10 );
remove_action( 'wp_head', 'wp_oembed_add_discovery_links', 10 );

/**
 * Entfernt wlwmanifest.xml (Microsoft Live Writer)
 */
remove_action('wp_head', 'wlwmanifest_link');
remove_action('wp_head', 'rsd_link');

/**
 * Disable W3TC footer comment for everyone but Admins (single site & network mode)
 */
if ( !current_user_can( 'activate_plugins' ) ) {
    add_filter( 'w3tc_can_print_comment', function( $w3tc_setting ) { return false; }, 10, 1 );
}

/**
 * Add short code functionality to excerpts.
 */
add_filter( 'the_excerpt', 'shortcode_unautop');
add_filter( 'the_excerpt', 'do_shortcode');

/** 
 * Adds short code: [glossar "Term"]
 */
function print_glossar_link( $atts ) {
        if ( count($atts) == 2 ) {
                $linktext = $atts[1];
        } else {
                $linktext = $atts[0];
        }
        return '<a class="glossar-link" href="https://www.fuselkoenig.de/glossar/#' . htmlentities($atts[0]) . '" title="Im Glossar zu ' . htmlentities($atts[0]) . '">' . htmlentities($linktext) . '</a>';
}
add_shortcode( "glossar", "print_glossar_link" );

/**
 * Redirects from the gallery to the actual post.
 */
function wpsites_attachment_redirect(){
        global $post;
        if ( is_attachment() && isset($post->post_parent) && is_numeric($post->post_parent) && ($post->post_parent != 0) ) {

            wp_redirect( get_permalink( $post->post_parent ), 301 );
            exit();
            wp_reset_postdata();
        }
}
add_action( 'template_redirect', 'wpsites_attachment_redirect' );

/**
 * Remove tags from tag cloud with zero entries.
 */
function set_widget_tag_cloud_excluded_tags($args){
        $min_count = 1;
        if ( "brennerei" == $args['taxonomy'] ) {
                $min_count+=1;
        }
        $excluded_tags=get_tags_termid_to_exclude($args['taxonomy'], $min_count);
        $my_args = array( 'exclude'=>$excluded_tags );
        $args = wp_parse_args( $args, $my_args );
        return $args;
}
function get_tags_termid_to_exclude($taxonomy, $max_excluded_count_value){
        $term_ids = array();
        foreach (
		get_terms( array(
			'taxonomy' => $taxonomy,
			'hide_empty' => true) )
		as $category )
	{
		if ($category->count < $max_excluded_count_value ){
			$term_ids[]=$category->term_id;
		}
        }
        return $term_ids;
}
add_filter( 'widget_tag_cloud_args', 'set_widget_tag_cloud_excluded_tags' );

/**
 * Add Matomo support to tag cloud links.
 */
function modify_tag_cloud_add_piwik_class($args) {                                                                                                                                                                   
        $start_s = '<a href="https://www.fuselkoenig.de/brennerei/';
        if ( $start_s  === substr( $args, 0, strlen($start_s) ) ) {
                $args = str_replace('class="', 'class="pwk-tc-brennerei ', $args);
        } else {
                $args = str_replace('class="', 'class="pwk-tc-category ', $args);
        }
        #file_put_contents("/tmp/wp.tagcloud.txt", ($args) );
        return $args;
}
add_filter( 'wp_tag_cloud', 'modify_tag_cloud_add_piwik_class' );

/**
 * Hides the checkbox to save name and email when someone comments.
 */
function comment_form_hide_cookies_consent( $fields ) {
	unset( $fields['cookies'] );
	return $fields;
}
add_filter( 'comment_form_default_fields', 'comment_form_hide_cookies_consent' );

/**
 * Allows to pass the parameter 'sort' and 'order' to WP pages.
 */
add_filter('query_vars', function ( $qvars ) {
        $qvars[] = '_sort';
        $qvars[] = '_order';
        return $qvars;
 } );

/**
 * Function to get the clean title of a blog post.
 */
if ( ! function_exists("get_my_clean_title")) {

	function get_my_clean_title( $title ) {
		$orig_title = str_replace('Im Test: ', '', $title);
		/*
		 * Entfernt alles, was in den Klammern steht.
		 */
		$my_title = preg_replace("/\(.+\)/i", "", $orig_title);

		if ( is_null($my_title) ) {
			return trim($orig_title);
		} else {
			return trim($my_title);
		}
	}

}

/**
 * If the plugin Breadcrumb NaXT is installed and active, this function adds support for bootstrap-styled breadcrumbs.
 */
if( function_exists('bcn_display_list') ) {
	function my_display_attributes_filter($attribs, $types, $id) {
	    $extra_attribs = array('class' => array('breadcrumb-item'));
	    //For the current item we need to add a little more info
	    if(is_array($types) && in_array('current-item', $types))
	    {
		$extra_attribs['class'][] = 'active';
		$extra_attribs['aria-current'] = array('page');
	    }
	    $atribs_array = array();
	    preg_match_all('/([a-zA-Z]+)=["\']([a-zA-Z0-9\-\_ ]*)["\']/i', $attribs, $matches);
	    if(isset($matches[1]))
	    {
		foreach ($matches[1] as $key => $tag)
		{
		    if(isset($matches[2][$key]))
		    {
			$atribs_array[$tag] = explode(' ', $matches[2][$key]);
		    }
		}
	    }
	    $merged_attribs = array_merge_recursive($atribs_array , $extra_attribs);
	    $output = '';
	    foreach($merged_attribs as $tag => $vals)
	    {
		$output .= sprintf(' %1$s="%2$s"', $tag, implode(' ', $vals));
	    }
	    return $output;
	}
	add_filter('bcn_display_attributes', my_display_attributes_filter, 10, 3);

	/**
	 * Reduces padding when breadcrumbs are visible (not on the front page). 
	 */
	function breadcrumbs_dynamic_css() {
?>
		<style>
			.wrapper {
				padding-top: 0px;
			}
			.wrapper.footer, #index-wrapper {
				padding-top: 40px;
			}
		</style>
<?php 
	}
	add_action('wp_head', 'breadcrumbs_dynamic_css', 99);

	/**
	 * Changes the breadcrumb title if a meta field with the key "bc" is set.
	 */
	add_filter('bcn_breadcrumb_title', function($title, $type, $id) {

		if ( ! is_null($id) ) {
			$title = get_post_meta($id, "bc", true) ?: $title;
		}

		return $title;
	}, 42, 3);
}

/**
 * Support for special offer pages.
 */
require_once __DIR__ . '/angebote/inc/functions.php';
require_once __DIR__ . '/angebote/inc/template.php';

/**
 * Removes emoji support.
 */
/*
remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
remove_action( 'wp_print_styles', 'print_emoji_styles' );
 */

require_once get_template_directory() . '/api/api.php';