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<?php
/*
* SiteSEO
* https://siteseo.io/
* (c) SiteSEO Team <support@siteseo.io>
*/
if(!defined('ABSPATH')){
die('HACKING ATTEMPT!');
}
// TODO: Handle Structured data and Primary category
function siteseo_render_breadcrumbs(){
global $post;
$settings = get_option('siteseo_advanced_option_name', []);
$breadcrumbs = [];
$seperator = !empty($settings['breadcrumbs_seperator']) ? $settings['breadcrumbs_seperator'] : '/';
$prefix = !empty($settings['breadcrumb_prefix']) ? $settings['breadcrumb_prefix'] : '';
if(!empty($prefix)){
$breadcrumbs[] = ['title' => $prefix, 'link' => ''];
}
if(!empty($settings['breadcrumbs_custom_seperator'])){
$seperator = $settings['breadcrumbs_custom_seperator'];
}
if(is_home()){
$breadcrumbs[] = single_post_title('', false);
} elseif (empty($settings['breadcrumbs_home'])){
$breadcrumbs[] = ['title' => __('Home'), 'link' => get_site_url()];
}
if(is_search()){
$breadcrumbs[] = ['title' => __('Search Result for ', 'siteseo') . get_search_query(), 'link' => ''];
}
if(is_404()){
$breadcrumbs[] = ['title' => __('404 Page Not found', 'siteseo'), 'link' => ''];
}
if(is_attachment()){
$breadcrumbs[] = ['title' => $post->post_parent, 'link' => get_permalink($post->post_parent)];
$breadcrumbs[] = ['title' => get_the_title(), 'link' => get_permalink()];
}
if(function_exists('is_shop') && function_exists('is_product') && function_exists('is_product_category') && function_exists('is_product_tag')
&& (is_shop() || is_product() || is_product_category() || is_product_tag()) && function_exists('wc_get_page_id')){
$shop_id = wc_get_page_id('shop');
// If shop ID is same as the home id that means, the hope page is being used as the shop page,
// So adding a Shop page crumb will make it redundent.
if(isset($shop_id) && get_option('page_on_front') != $shop_id){
$breadcrumbs[] = ['title' => get_the_title($shop_id), 'link' => get_permalink($shop_id)];
}
if(is_product_category()){
$term = $GLOBALS['wp_query']->get_queried_object();
if(!empty($term)){
$term_trail = siteseo_get_term_ansestors($term);
if(!empty($term_trail)){
$breadcrumbs = array_merge($breadcrumbs, $term_trail);
}
}
}
if(is_product_tag()){
$term = $GLOBALS['wp_query']->get_queried_object();
if(!empty($term)){
$breadcrumbs[] = ['title' => $term->name, 'link' => ''];
}
}
if(is_product()){
// Getting Product category and its ansestors if any.
$categories = get_the_terms($post->ID, 'product_cat');
if(!empty($categories)){
foreach($categories as $category){
if(!empty($category) && $category instanceof WP_Term){
$category_trail = siteseo_get_term_ansestors($category);
if(!empty($category_trail)){
$breadcrumbs = array_merge($breadcrumbs, $category_trail);
}
$breadcrumbs[] = ['title' => $category->name, 'link' => get_term_link($category)];
break;
}
}
}
$breadcrumbs[] = ['title' => get_the_title($post), 'link' => ''];
}
}
if(is_singular() && !is_archive() && (!function_exists('is_product') || !is_product())){
$categories = get_the_category();
if(!empty($categories)){
foreach($categories as $category){
if(!empty($category) && $category instanceof WP_Term){
$category_trail = siteseo_get_term_ansestors($category);
if(!empty($category_trail)){
$breadcrumbs = array_merge($breadcrumbs, $category_trail);
}
$breadcrumbs[] = ['title' => $category->name, 'link' => get_term_link($category)];
break;
}
}
}
$breadcrumbs[] = ['title' => get_the_title(), 'link' => ''];
}
if(is_archive()){
if(is_category() || is_tax() || is_tag()){
$term = $GLOBALS['wp_query']->get_queried_object();
if(!is_tag() && !empty($term) && $term instanceof WP_Term){
// Adding Term ansestor if any
if(!is_tag()){
$term_trail = siteseo_get_term_ansestors($term);
if(!empty($term_trail)){
$breadcrumbs = array_merge($breadcrumbs, $term_trail);
}
}
$breadcrumbs[] = ['title' => $term->name, 'link' => ''];
}
}
if(is_author()){
global $author;
$author_data = get_userdata($author);
$breadcrumbs[] = ['title' => $author_data->display_name, 'link' => get_author_posts_url($author_data->ID)];
}
}
$html = '<style>.siteseo-breadcrumbs{display:flex;list-style-type:none;margin:0;padding:0}.siteseo-breadcrumbs-seperator{margin:0 5px;padding:0}</style><div class="siteseo-breadcrumbs-wrap">
<ul class="siteseo-breadcrumbs">';
foreach($breadcrumbs as $i => $breadcrumb){
if(empty($breadcrumb['title'])){
continue;
}
$html .= '<li>'.(!empty($breadcrumb['link']) ? '<a href="'.esc_url($breadcrumb['link']).'" title="'.esc_attr($breadcrumb['title']).'">'.esc_html($breadcrumb['title']).'</a>' : esc_html($breadcrumb['title'])).'</li>';
if(count($breadcrumbs) - 1 != $i){
$html .= '<div class="siteseo-breadcrumbs-seperator"><span>'.esc_html($seperator).'</span></div>';
}
}
$html .= '</ul></div>';
return $html;
}
function siteseo_breadcrumbs_seperator(){
$settings = get_option('siteseo_advanced_option_name', []);
$seperator = '/';
if(!empty($settings)){
$seperator = !empty($settings['breadcrumbs_seperator']) ? $settings['breadcrumbs_seperator'] : '/';
if(!empty($settings['breadcrumbs_custom_seperator'])){
$seperator = $settings['breadcrumbs_custom_seperator'];
}
}
return $seperator;
}
function siteseo_get_term_ansestors($term){
$ansestors = get_ancestors($term->term_id, $term->taxonomy);
$ansestors = array_reverse($ansestors);
$ansestors_res = [];
foreach($ansestors as $ansestor){
$ansestor = get_term($ansestor, $term->taxonomy);
if(empty($ansestor) || is_wp_error($ansestor) || !is_a($ansestor, 'WP_Term')){
continue;
}
$ansestors_res[] = ['title' => $ansestor->name, 'link' => get_term_link($ansestor)];
}
return $ansestors_res;
}