File: /home/scientificreligi/public_html/wp-content/themes/scientific-religion/inc/breadcrumbs.class.php
<?php
/**
* Breadcrumb Class
*/
// Do not allow directly accessing this file.
if ( ! defined( 'ABSPATH' ) ) {
exit( 'Direct script access denied.' );
}
if (!class_exists('G5Plus_Auteur_Breadcrumbs')) {
class G5Plus_Auteur_Breadcrumbs
{
private static $_instance;
public static function getInstance()
{
if (self::$_instance == NULL) {
self::$_instance = new self();
}
return self::$_instance;
}
/**
* Current post object
*
* @var array|null|WP_Post
*/
private $post;
/**
* The Html Markup
*
* @var string
*/
private $html_markup;
/**
* Prefix for breadcrumb
*
* @var string
*/
private $home_prefix;
/**
* Separator between item
*
* @var string
*/
private $separator;
/**
* Show post type archive?
*
* @var bool
*/
private $show_post_type_archive;
/**
* Show term in breadcrumb
*
* @var bool
*/
private $show_terms;
/**
* Label for home link
*
* @var string
*/
private $home_label;
/**
* Prefix For Tag
*
* @var string
*/
private $tag_archive_prefix;
/**
* Prefix for search page
*
* @var string
*/
private $search_prefix;
/**
* Prefix for error page
*
* @var string
*/
private $error_prefix;
/**
* Blog Page Title
*
* @var string
*/
private $blog_label;
public function init()
{
$this->post = get_post(get_queried_object_id());
$default = array(
'home_prefix' => '',
'separator' => '/',
'show_post_type_archive' => G5Plus_Auteur()->options()->get_breadcrumb_show_post_type_archive() === 'on',
'show_terms' => G5Plus_Auteur()->options()->get_breadcrumb_show_categories() === 'on',
'home_label' => esc_html__('Home', 'g5plus-auteur'),
'blog_label' => esc_html__('Blog', 'g5plus-auteur'),
'tag_archive_prefix' => esc_html__('Tag:', 'g5plus-auteur'),
'search_prefix' => esc_html__('Search:', 'g5plus-auteur'),
'error_prefix' => esc_html__('Page Not Found', 'g5plus-auteur')
);
$args = apply_filters('g5plus_breadcrumbs_options', $default);
$default = wp_parse_args($args, $default);
$this->home_prefix = isset($default['home_prefix']) ? $default['home_prefix'] : '';
$this->separator = isset($default['separator']) ? $default['separator'] : '';
$this->show_post_type_archive = isset($default['show_post_type_archive']) ? $default['show_post_type_archive'] : false;
$this->show_terms = isset($default['show_terms']) ? $default['show_terms'] : false;
$this->home_label = isset($default['home_label']) ? $default['home_label'] : esc_html__('Home', 'g5plus-auteur');
$this->blog_label = isset($default['blog_label']) ? $default['blog_label'] : esc_html__('Blog', 'g5plus-auteur');
$this->tag_archive_prefix = isset($default['tag_archive_prefix']) ? $default['tag_archive_prefix'] : esc_html__('Tag:', 'g5plus-auteur');
$this->search_prefix = isset($default['search_prefix']) ? $default['search_prefix'] : esc_html__('Search:', 'g5plus-auteur');
$this->error_prefix = isset($default['error_prefix']) ? $default['error_prefix'] : esc_html__('Page Not Found', 'g5plus-auteur');
}
public function get_breadcrumbs()
{
$breadcrumb_enable = G5Plus_Auteur()->options()->get_breadcrumb_enable();
if ($breadcrumb_enable != 'on') return;
$this->init();
$options = get_option('wpseo_internallinks');
if (function_exists('yoast_breadcrumb') && $options && ($options['breadcrumbs-enable'] === true)) {
ob_start();
yoast_breadcrumb();
$this->html_markup = ob_get_clean();
} else {
$this->prepare_breadcrumb_html();
}
$this->wrap_breadcrumbs();
$this->output_breadcrumbs_html();
}
private function prepare_breadcrumb_html()
{
// Add home prefix
$this->html_markup = $this->get_breadcrumb_prefix();
// Add home link
$this->html_markup .= $this->get_breadcrumb_home();
// Woocommerce path prefix
if (class_exists('WooCommerce') && ((is_woocommerce() && is_archive() && !is_shop()) || is_cart() || is_checkout() || is_account_page())) {
$this->html_markup .= $this->get_woocommerce_shop_page();
}
// bbPress path prefix
if (class_exists('bbPress') && is_bbpress() && !bbp_is_forum_archive()) {
$this->html_markup .= $this->get_bbpress_main_archive_page();
}
// single post, page, etc
if (is_singular()) {
// display archive link for post type
if (isset($this->post->post_type) && get_post_type_archive_link($this->post->post_type) && $this->show_post_type_archive) {
$this->html_markup .= $this->get_post_type_archive();
}
// If the post doesn't have parents.
if (isset($this->post->post_parent) && ($this->post->post_parent === 0)) {
$this->html_markup .= $this->get_post_terms();
} // If there are parents; mostly for pages.
else {
$this->html_markup .= $this->get_post_ancestors();
}
$this->html_markup .= $this->get_breadcrumb_leaf_markup();
} else {
// Blog page is a dedicated page.
if ( is_home() && ! is_front_page() ) {
$posts_page = get_option( 'page_for_posts' );
$posts_page_title = get_the_title( $posts_page );
$this->html_markup .= $this->get_single_breadcrumb_markup( $posts_page_title );
}
// Custom post types archives.
if ( is_post_type_archive() ) {
$this->html_markup .= $this->get_post_type_archive( false );
// Search on custom post type (e.g. Woocommerce).
if ( is_search() ) {
$this->html_markup .= $this->get_breadcrumb_leaf_markup( 'search' );
}
} // Taxonomy Archives.
elseif ( is_tax() || is_tag() || is_category() ) {
if ( is_tag() ) { // If we have a tag archive, add the tag prefix.
$this->html_markup .= $this->tag_archive_prefix;
}
$this->html_markup .= $this->get_taxonomies();
$this->html_markup .= $this->get_breadcrumb_leaf_markup( 'term' );
} // Date Archives.
elseif ( is_date() ) {
global $wp_locale;
// Set variables.
$year = get_the_date('Y');
// Year Archive, only is a leaf.
if ( is_year() ) {
$this->html_markup .= $this->get_breadcrumb_leaf_markup( 'year' );
} // Month Archive, needs year link and month leaf.
elseif ( is_month() ) {
$this->html_markup .= $this->get_single_breadcrumb_markup( $year, get_year_link( $year ) );
$this->html_markup .= $this->get_breadcrumb_leaf_markup( 'month' );
} // Day Archive, needs year and month link and day leaf.
elseif ( is_day() ) {
$month = get_the_date('m');
$month_name = $wp_locale->get_month( $month );
$this->html_markup .= $this->get_single_breadcrumb_markup( $year, get_year_link( $year ) );
$this->html_markup .= $this->get_single_breadcrumb_markup( $month_name, get_month_link( $year, $month ) );
$this->html_markup .= $this->get_breadcrumb_leaf_markup( 'day' );
}
} // Author Archives.
elseif ( is_author() ) {
$this->html_markup .= $this->get_breadcrumb_leaf_markup( 'author' );
} // Search Page.
elseif ( is_search() ) {
$this->html_markup .= $this->get_breadcrumb_leaf_markup( 'search' );
} // 404 Page.
elseif ( is_404() ) {
// Special treatment for Events Calendar to avoid 404 messages on list view.
if ( ( function_exists( 'tribe_is_event' ) && tribe_is_event() ) ) {
$this->html_markup .= $this->get_breadcrumb_leaf_markup( 'events' );
} // Default case.
else {
$this->html_markup .= $this->get_breadcrumb_leaf_markup( '404' );
}
} // bbPress.
elseif ( class_exists( 'bbPress' ) ) {
// Search Page.
if ( bbp_is_search() ) {
$this->html_markup .= $this->get_breadcrumb_leaf_markup( 'bbpress_search' );
} // User page.
elseif ( bbp_is_single_user() ) {
$this->html_markup .= $this->get_breadcrumb_leaf_markup( 'bbpress_user' );
}
}
}
}
private function wrap_breadcrumbs()
{
if ($this->html_markup) {
$this->html_markup = '<ul class="gf-breadcrumbs">' . $this->html_markup . '</ul>';
}
}
private function output_breadcrumbs_html()
{
echo wp_kses_post($this->html_markup);
}
private function get_breadcrumb_prefix()
{
$output = '';
if (!is_front_page() && $this->home_prefix) {
$output = '<li class="breadcrumb-prefix">' . $this->home_prefix . '</li>';
}
return $output;
}
private function get_breadcrumb_home()
{
if (!is_front_page()) {
$output = $this->get_single_breadcrumb_markup($this->home_label, get_home_url('/'));;
} else {
$output = $this->get_single_breadcrumb_markup($this->blog_label);
}
return $output;
}
private function get_woocommerce_shop_page($linked = true)
{
$post_type = 'product';
$post_type_object = get_post_type_object($post_type);
$shop_page_markup = '';
$link = '';
if (isset($post_type_object) && class_exists('WooCommerce') && (is_woocommerce() || is_cart() || is_checkout() || is_account_page())) {
// Get shop page id and then its name.
$shop_page_name = wc_get_page_id('shop') ? get_the_title(wc_get_page_id('shop')) : '';
// Use the archive name if no shop page was set.
if (!$shop_page_name) {
$shop_page_name = $post_type_object->labels->name;
}
// Check if the breadcrumb should be linked.
if ($linked) {
$link = get_post_type_archive_link($post_type);
}
$shop_page_markup = $this->get_single_breadcrumb_markup($shop_page_name, $link);
}
return $shop_page_markup;
}
private function get_bbpress_main_archive_page()
{
return $this->get_single_breadcrumb_markup(bbp_get_forum_archive_title(), get_post_type_archive_link('forum'));
}
private function get_post_type_archive($linked = true)
{
global $wp_query;
$post_type = $wp_query->query_vars['post_type'];
if (!$post_type) {
$post_type = get_post_type();
}
$post_type_object = get_post_type_object($post_type);
if (!is_object($post_type_object)) return '';
// Woocommerce
if (($post_type === 'product') && class_exists('WooCommerce')) {
$woocommerce_shop_page = $this->get_woocommerce_shop_page($linked);
return $woocommerce_shop_page;
}
// bbPress
if (($post_type === 'topic') && class_exists('bbPress')) {
$archive_title = bbp_get_forum_archive_title();
if ($linked) {
$link = get_post_type_archive_link(bbp_get_forum_post_type());
}
return $this->get_single_breadcrumb_markup($archive_title, $link);
}
$archive_title = $post_type_object->name;
if (isset($post_type_object->label) && !empty($post_type_object->label)) {
$archive_title = $post_type_object->label;
} elseif (isset($post_type_object->labels->menu_name) && !empty($post_type_object->labels->menu_name)) {
$archive_title = $post_type_object->labels->menu_name;
}
$link = '';
if ($linked) {
$link = get_post_type_archive_link($post_type);
}
return $this->get_single_breadcrumb_markup($archive_title, $link);
}
private function get_post_terms()
{
$terms_markup = '';
if (!$this->show_terms) {
return $terms_markup;
}
if ($this->post->post_type === 'post') {
$taxonomy = 'category';
} elseif ($this->post->post_type === 'gf-portfolio') {
$taxonomy = 'portfolio_cat';
} elseif (($this->post->post_type === 'product') && class_exists('WooCommerce') && is_woocommerce()) {
$taxonomy = 'product_cat';
} elseif ($this->post->post_type === 'tribe_events') {
$taxonomy = 'tribe_events_cat';
} else {
return $terms_markup;
}
$terms = wp_get_object_terms($this->post->ID, $taxonomy);
if (empty($terms)) {
return $terms_markup;
}
$terms_by_id = array();
foreach ($terms as $term) {
$terms_by_id[$term->term_id] = $term;
}
// Unset all terms that are parents of some term.
foreach ($terms as $term) {
unset($terms_by_id[$term->parent]);
}
// If only one term is left, we have a single term tree.
if (count($terms_by_id) == 1) {
unset($terms);
$terms[0] = array_shift($terms_by_id);
}
// The post is only in one term.
if (count($terms) == 1) {
$term_parent = $terms[0]->parent;
// If the term has a parent we need its ancestors for a full tree.
if ($term_parent) {
// Get space separated string of term tree in slugs.
$term_tree = get_ancestors($terms[0]->term_id, $taxonomy);
$term_tree = array_reverse($term_tree);
$term_tree[] = get_term($terms[0]->term_id, $taxonomy);
// Loop through the term tree.
foreach ($term_tree as $term_id) {
// Get the term object by its slug.
$term_object = get_term($term_id, $taxonomy);
// Add it to the term breadcrumb markup string.
$terms_markup .= $this->get_single_breadcrumb_markup($term_object->name, get_term_link($term_object));
}
} else {
$terms_markup = $this->get_single_breadcrumb_markup($terms[0]->name, get_term_link($terms[0]));
}
} // the post has multiple terms
else {
// The lexicographically smallest term will be part of the breadcrump rich snippet path.
$terms_markup = $this->get_single_breadcrumb_markup($terms[0]->name, get_term_link($terms[0]), false);
// Drop the first index.
array_shift($terms);
// Loop through the rest of the terms, and add them to string comma separated.
$max_index = count($terms);
$i = 0;
foreach ($terms as $term) {
// For the last index also add the separator.
if (++$i == $max_index) {
$terms_markup .= ', ' . $this->get_single_breadcrumb_markup($term->name, get_term_link($term), true, false);
} else {
$terms_markup .= ', ' . $this->get_single_breadcrumb_markup($term->name, get_term_link($term), false, false);
}
}
}
return $terms_markup;
}
private function get_post_ancestors() {
$ancestors_markup = '';
// Get the ancestor id, order needs to be reversed.
$post_ancestor_ids = array_reverse( get_post_ancestors( $this->post ) );
// Loop through the ids to get the full tree.
foreach ( $post_ancestor_ids as $post_ancestor_id ) {
$post_ancestor = get_post( $post_ancestor_id );
$ancestors_markup .= $this->get_single_breadcrumb_markup( $post_ancestor->post_title, get_permalink( $post_ancestor->ID ) );
}
return $ancestors_markup;
}
private function get_breadcrumb_leaf_markup($object_type = '') {
global $wp_query, $wp_locale;
switch ( $object_type ) {
case 'term':
$term = $wp_query->get_queried_object();
$title = $term->name;
break;
case 'year':
$title = esc_html( get_the_date('Y') );
break;
case 'month':
$title = $wp_locale->get_month( get_the_date('m') );
break;
case 'day':
$title = get_the_date('d');
break;
case 'author':
$user = $wp_query->get_queried_object();
$title = $user->display_name;
break;
case 'search':
$title = $this->search_prefix . ' ' . esc_html( get_search_query() );
break;
case '404':
$title = $this->error_prefix;
break;
case 'bbpress_search':
$title = $this->search_prefix . ' ' . urldecode( esc_html( get_query_var( 'bbp_search' ) ) );
break;
case 'bbpress_user':
$current_user_id = bbp_get_user_id( 0, true, false );
$current_user = get_userdata( $current_user_id );
$title = $current_user->display_name;
break;
case 'events':
$title = tribe_get_events_title();
break;
default:
$title = get_the_title( $this->post->ID );
if (is_singular()) {
$page_title_content = G5Plus_Auteur()->metaBox()->get_page_title_content();
if ($page_title_content !== '') {
$title = $page_title_content;
}
}
break;
}
return '<li class="breadcrumb-leaf">' . $title . '</li>';
}
private function get_taxonomies() {
global $wp_query;
$term = $wp_query->get_queried_object();
$terms_markup = '';
// Make sure we have hierarchical taxonomy and parents.
if ( 0 != $term->parent && is_taxonomy_hierarchical( $term->taxonomy ) ) {
$term_ancestors = get_ancestors( $term->term_id, $term->taxonomy );
$term_ancestors = array_reverse( $term_ancestors );
// Loop through ancestors to get the full tree.
foreach ( $term_ancestors as $term_ancestor ) {
$term_object = get_term( $term_ancestor, $term->taxonomy );
$terms_markup .= $this->get_single_breadcrumb_markup( $term_object->name, get_term_link( $term_object->term_id, $term->taxonomy ) );
}
}
return $terms_markup;
}
private function get_single_breadcrumb_markup($title, $link = '', $separator = true, $micro_data = true)
{
$micro_data_item_scope = $micro_data_url = $micro_data_title = $separator_markup = '';
if ($micro_data) {
$micro_data_item_scope = 'itemscope itemtype="http://data-vocabulary.org/Breadcrumb"';
$micro_data_url = 'itemprop="url"';
$micro_data_title = 'itemprop="title"';
}
$breadcrumb_content = '<span ' . $micro_data_title . '>' . $title . '</span>';
if ($link) {
$breadcrumb_content = '<a ' . $micro_data_url . ' href="' . esc_url($link) . '">' . $breadcrumb_content . '</a>';
}
if ($separator) {
$separator_markup = '<li class="breadcrumb-sep">' . $this->separator . '</li>';
}
$output = '<li ' . $micro_data_item_scope . '>' . $breadcrumb_content . '</li>' . $separator_markup;
return $output;
}
}
}