functions.php

<?php

/**
 * Cooper functions and definitions
 *
 * @link https://developer.wordpress.org/themes/basics/theme-functions/
 *
 * @package Cooper
 */

if (!defined('_S_VERSION')) {
	// Replace the version number of the theme on each release.
	define('_S_VERSION', '1.0.0');
}

if (!function_exists('cooper_setup')) :
	/**
	 * Sets up theme defaults and registers support for various WordPress features.
	 *
	 * Note that this function is hooked into the after_setup_theme hook, which
	 * runs before the init hook. The init hook is too late for some features, such
	 * as indicating support for post thumbnails.
	 */
	function cooper_setup()
	{
		/*
		 * Make theme available for translation.
		 * Translations can be filed in the /languages/ directory.
		 * If you're building a theme based on Cooper, use a find and replace
		 * to change 'cooper' to the name of your theme in all the template files.
		 */
		load_theme_textdomain('cooper', get_template_directory() . '/languages');
		add_theme_support('automatic-feed-links');
		add_theme_support('title-tag');
		add_theme_support('post-thumbnails');
		add_theme_support(
			'html5',
			array(
				'search-form',
				'comment-form',
				'comment-list',
				'gallery',
				'caption',
				'style',
				'script',
			)
		);
		add_theme_support( 'post-formats', array(
				'gallery',
				'quote',
				'video',
				'aside',
				'image',
				'link',
				'status',
				'audio',
				'chat'
			) );
		add_theme_support(
			'custom-background',
			apply_filters(
				'cooper_custom_background_args',
				array(
					'default-color' => 'ffffff',
					'default-image' => '',
				)
			)
		);

		// Add theme support for selective refresh for widgets.
		add_theme_support('customize-selective-refresh-widgets');
	}
endif;
add_action('after_setup_theme', 'cooper_setup');

/**
 * Set the content width in pixels, based on the theme's design and stylesheet.
 *
 * Priority 0 to make it available to lower priority callbacks.
 *
 * @global int $content_width
 */
function cooper_content_width()
{
	$GLOBALS['content_width'] = apply_filters('cooper_content_width', 640);
}
add_action('after_setup_theme', 'cooper_content_width', 0);

/**
 * Enqueue scripts and styles.
 */
function cooper_scripts()
{
	wp_enqueue_style('cooper-style', get_stylesheet_uri(), array(), _S_VERSION);
	wp_enqueue_script('cooper-js', get_template_directory_uri() . '/js/app.js', true);
}
add_action('wp_enqueue_scripts', 'cooper_scripts');

// Alternative
// Fully Disable Gutenberg editor.
add_filter('use_block_editor_for_post_type', '__return_false', 10);
// Don't load Gutenberg-related stylesheets.
add_action( 'wp_enqueue_scripts', 'remove_block_css', 100 );
function remove_block_css() {
wp_dequeue_style( 'wp-block-library' ); // Wordpress core
wp_dequeue_style( 'wp-block-library-theme' ); // Wordpress core
wp_dequeue_style( 'wc-block-style' ); // WooCommerce
wp_dequeue_style( 'storefront-gutenberg-blocks' ); // Storefront theme
wp_dequeue_style( 'indieweb' ); //Indieweb
wp_dequeue_style( 'kind' ); //Post Kinds
wp_dequeue_style( 'syndication-style' ); //Syndication Links
wp_dequeue_style( 'semantic-linkbacks-css' ); //Semantic Linkbacks
}

/**
 * Implement the Custom Header feature.
 */
require get_template_directory() . '/inc/custom-header.php';

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

/**
 * Functions which enhance the theme by hooking into WordPress.
 */
require get_template_directory() . '/inc/template-functions.php';

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

/**
 * Cleanup
 */
add_filter('the_generator', '__return_false');
remove_action('wp_head', 'wlwmanifest_link');
remove_action('wp_head', 'wp_generator');
remove_action('wp_head', 'print_emoji_detection_script', 7);
remove_action('admin_print_scripts', 'print_emoji_detection_script');
remove_action('wp_print_styles', 'print_emoji_styles');
remove_action('admin_print_styles', 'print_emoji_styles');
remove_filter('the_content_feed', 'wp_staticize_emoji');
remove_filter('comment_text_rss', 'wp_staticize_emoji');
remove_filter('wp_mail', 'wp_staticize_emoji_for_email');
add_filter('emoji_svg_url', '__return_false');
function cleanup_default_rewrite_rules($rules)
{
	foreach ($rules as $regex => $query) {
		if (strpos($regex, 'attachment') || strpos($query, 'attachment')) {
			unset($rules[$regex]);
		}
	}

	return $rules;
}
add_filter('rewrite_rules_array', 'cleanup_default_rewrite_rules');
function cleanup_attachment_link($link)
{
	return;
}
add_filter('attachment_link', 'cleanup_attachment_link');

update_option('thumbnail_size_w', 750);
update_option('thumbnail_size_h', 750);
update_option('thumbnail_crop', 1);

function sanitize_pagination($content) {
    // Remove role attribute
    $content = str_replace('role="navigation"', '', $content);

    // Remove h2 tag
    $content = preg_replace('#<h2.*?>(.*?)<\/h2>#si', '', $content);

    return $content;
}

add_action('navigation_markup_template', 'sanitize_pagination');

// bootstrap 5 wp_nav_menu walker
class bs_nav_menu_walker extends Walker_Nav_menu
{
  private $current_item;
  private $dropdown_menu_alignment_values = [
    'dropdown-menu-start',
    'dropdown-menu-end',
    'dropdown-menu-sm-start',
    'dropdown-menu-sm-end',
    'dropdown-menu-md-start',
    'dropdown-menu-md-end',
    'dropdown-menu-lg-start',
    'dropdown-menu-lg-end',
    'dropdown-menu-xl-start',
    'dropdown-menu-xl-end',
    'dropdown-menu-xxl-start',
    'dropdown-menu-xxl-end'
  ];

  function start_lvl(&$output, $depth = 0, $args = null)
  {
    $dropdown_menu_class[] = '';
    foreach($this->current_item->classes as $class) {
      if(in_array($class, $this->dropdown_menu_alignment_values)) {
        $dropdown_menu_class[] = $class;
      }
    }
    $indent = str_repeat("\t", $depth);
    $submenu = ($depth > 0) ? ' sub-menu' : '';
    $output .= "\n$indent<ul class=\"dropdown-menu$submenu " . esc_attr(implode(" ",$dropdown_menu_class)) . " depth_$depth\">\n";
  }

  function start_el(&$output, $item, $depth = 0, $args = null, $id = 0)
  {
    $this->current_item = $item;

    $indent = ($depth) ? str_repeat("\t", $depth) : '';

    $li_attributes = '';
    $class_names = $value = '';

    $classes = empty($item->classes) ? array() : (array) $item->classes;

    $classes[] = ($args->walker->has_children) ? 'dropdown' : '';
    $classes[] = 'nav-item';
    $classes[] = 'nav-item-' . $item->ID;
    if ($depth && $args->walker->has_children) {
      $classes[] = 'dropdown-menu dropdown-menu-end';
    }

    $class_names =  join('', apply_filters('nav_menu_css_class', array_filter($classes), $item, $args));
    $class_names = ' class="' . esc_attr($class_names) . '"';

    $id = apply_filters('nav_menu_item_id', 'menu-item-' . $item->ID, $item, $args);
    $id = strlen($id) ? ' id="' . esc_attr($id) . '"' : '';

    $output .= $indent . '<li class="nav-item">';

    $attributes = !empty($item->attr_title) ? ' title="' . esc_attr($item->attr_title) . '"' : '';
    $attributes .= !empty($item->target) ? ' target="' . esc_attr($item->target) . '"' : '';
    $attributes .= !empty($item->xfn) ? ' rel="' . esc_attr($item->xfn) . '"' : '';
    $attributes .= !empty($item->url) ? ' href="' . esc_attr($item->url) . '"' : '';

    $active_class = ($item->current || $item->current_item_ancestor || in_array("current_page_parent", $item->classes, true) || in_array("current-post-ancestor", $item->classes, true)) ? 'active' : '';
    $nav_link_class = ( $depth > 0 ) ? 'dropdown-item ' : 'nav-link';
    $attributes .= ( $args->walker->has_children ) ? ' class="'. $nav_link_class . ' dropdown-toggle" data-bs-toggle="dropdown" aria-haspopup="true" aria-expanded="false"' : ' class="'. $nav_link_class . '"';

    $item_output = $args->before;
    $item_output .= '<a' . $attributes . '>';
    $item_output .= $args->link_before . apply_filters('the_title', $item->title, $item->ID) . $args->link_after;
    $item_output .= '</a>';
    $item_output .= $args->after;

    $output .= apply_filters('walker_nav_menu_start_el', $item_output, $item, $depth, $args);
  }
}
// register a new menu
register_nav_menu('main-menu', 'Main menu');
register_nav_menu('footer-menu', 'Footer menu');