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<?php /** * Class Avada_Breadcrumbs * This file does the breadcrumbs handling for the fusion framework. * * @author ThemeFusion * @copyright (c) Copyright by ThemeFusion * @link http://theme-fusion.com * @package Avada * @subpackage Core * @since 1.0 */ // Do not allow directly accessing this file. if ( ! defined( 'ABSPATH' ) ) { exit( 'Direct script access denied.' ); } /** * Handle breadcrumbs. */ class Avada_Breadcrumbs { /** * Current post object. * * @var mixed */ private $post; /** * Prefix for the breadcrumb path. * * @var string */ private $home_prefix; /** * Separator between single breadscrumbs. * * @var string */ private $separator; /** * True if terms should be shown in breadcrumb path. * * @var bool */ private $show_terms; /** * Label for the "Home" link. * * @var string */ private $home_label; /** * Prefix used for pages like date archive. * * @var string */ private $tag_archive_prefix; /** * Prefix used for search page. * * @var string */ private $search_prefix; /** * Prefix used for 404 page. * * @var string */ private $error_prefix; /** * Do ww want to show post-type archives? * * @var bool */ private $show_post_type_archive; /** * The HTML markup. * * @var string */ private $html_markup; /** * The one, true instance of this object. * * @static * @access private * @var null|object */ private static $instance = null; /** * Class Constructor. */ private function __construct() { // Initialize object variables. $this->post = get_post( get_queried_object_id() ); // Setup default array for changeable variables. $defaults = array( 'home_prefix' => Avada()->settings->get( 'breacrumb_prefix' ) ? Avada()->settings->get( 'breacrumb_prefix' ) : '', 'separator' => Avada()->settings->get( 'breadcrumb_separator' ) ? Avada()->settings->get( 'breadcrumb_separator' ) : '', 'show_post_type_archive' => Avada()->settings->get( 'breadcrumb_show_post_type_archive' ) ? Avada()->settings->get( 'breadcrumb_show_post_type_archive' ) : '', 'show_terms' => Avada()->settings->get( 'breadcrumb_show_categories' ) ? Avada()->settings->get( 'breadcrumb_show_categories' ) : '', 'home_label' => esc_attr__( 'Home', 'Avada' ), 'tag_archive_prefix' => esc_attr__( 'Tag:', 'Avada' ), 'search_prefix' => esc_attr__( 'Search:', 'Avada' ), 'error_prefix' => esc_attr__( '404 - Page not Found', 'Avada' ), ); // Setup a filter for changeable variables and merge it with the defaults. $args = apply_filters( 'avada_breadcrumbs_defaults', $defaults ); $defaults = wp_parse_args( $args, $defaults ); $this->home_prefix = $defaults['home_prefix']; $this->separator = $defaults['separator']; $this->show_post_type_archive = $defaults['show_post_type_archive']; $this->show_terms = $defaults['show_terms']; $this->home_label = $defaults['home_label']; $this->tag_archive_prefix = $defaults['tag_archive_prefix']; $this->search_prefix = $defaults['search_prefix']; $this->error_prefix = $defaults['error_prefix']; } /** * Get a unique instance of this object. * * @return object */ public static function get_instance() { if ( null === self::$instance ) { self::$instance = new Avada_Breadcrumbs(); } return self::$instance; } /** * Publicly accessible function to get the full breadcrumb HTML markup. * * @return void */ public function get_breadcrumbs() { // Get the Wordpres SEO options if activated; else will return FALSE. $options = get_option( 'wpseo_internallinks' ); // Support for Yoast Breadcrumbs. if ( function_exists( 'yoast_breadcrumb' ) && $options && true === $options['breadcrumbs-enable'] ) { ob_start(); yoast_breadcrumb(); $this->html_markup = ob_get_clean(); } else { // ThemeFusion Breadcrumbs. $this->prepare_breadcrumb_html(); } $this->wrap_breadcrumbs(); $this->output_breadcrumbs_html(); } /** * Prepare the full output of the breadcrumb path. * * @return void */ private function prepare_breadcrumb_html() { // Add the path prefix. $this->html_markup = $this->get_breadcrumb_prefix(); // Add the "Home" link. $this->html_markup .= $this->get_breadcrumb_home(); // Woocommerce path prefix (e.g "Shop" ). if ( class_exists( 'WooCommerce' ) && ( ( Avada_Helper::is_woocommerce() && is_archive() && ! is_shop() ) || is_cart() || is_checkout() || is_account_page() ) && $this->show_post_type_archive ) { $this->html_markup .= $this->get_woocommerce_shop_page(); } // Path prefix for bbPress (e.g "Forums" ). if ( class_exists( 'bbPress' ) && Avada_Helper::is_bbpress() && ( Avada_Helper::bbp_is_topic_archive() || bbp_is_single_user() || Avada_Helper::bbp_is_search() ) ) { $this->html_markup .= $this->get_bbpress_main_archive_page(); } // Single Posts and Pages (of all post types). if ( is_singular() ) { // If the post type of the current post has an archive link, display the archive breadcrumb. 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 ) && 0 == $this->post->post_parent ) { $this->html_markup .= $this->get_post_terms(); } else { // If there are parents; mostly for pages. $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, '', true, true, true ); } else if ( ( is_tax() || is_tag() || is_category() || is_date() || is_author() ) && $this->show_post_type_archive && ! Avada_Helper::is_woocommerce() && ! Avada_Helper::is_bbpress() ) { $this->html_markup .= $this->get_post_type_archive(); } // Custom post types archives. if ( is_post_type_archive() ) { // Search on custom post type (e.g. Woocommerce). if ( is_search() ) { $this->html_markup .= $this->get_post_type_archive(); $this->html_markup .= $this->get_breadcrumb_leaf_markup( 'search' ); } else { $this->html_markup .= $this->get_post_type_archive( false ); } } else if ( is_tax() || is_tag() || is_category() ) { // Taxonomy Archives. 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' ); } else if ( is_date() ) { // Date Archives. global $wp_locale; $year = esc_html( get_query_var( 'year' ) ); if ( ! $year ) { $year = substr( esc_html( get_query_var( 'm' ) ), 0, 4 ); } // Year Archive, only is a leaf. if ( is_year() ) { $this->html_markup .= $this->get_breadcrumb_leaf_markup( 'year' ); } else if ( is_month() ) { // Month Archive, needs year link and month leaf. $this->html_markup .= $this->get_single_breadcrumb_markup( $year, get_year_link( $year ) ); $this->html_markup .= $this->get_breadcrumb_leaf_markup( 'month' ); } else if ( is_day() ) { // Day Archive, needs year and month link and day leaf. global $wp_locale; $month = get_query_var( 'monthnum' ); if ( ! $month ) { $month = substr( esc_html( get_query_var( 'm' ) ), 4, 2 ); } $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' ); } } else if ( is_author() ) { // Author Archives. $this->html_markup .= $this->get_breadcrumb_leaf_markup( 'author' ); } else if ( is_search() ) { // Search Page. $this->html_markup .= $this->get_breadcrumb_leaf_markup( 'search' ); } else if ( is_404() ) { // 404 Page. // Special treatment for Events Calendar to avoid 404 messages on list view. if ( Avada_Helper::tribe_is_event() || Avada_Helper::is_events_archive() ) { $this->html_markup .= $this->get_breadcrumb_leaf_markup( 'events' ); } else { $this->html_markup .= $this->get_breadcrumb_leaf_markup( '404' ); } } else if ( class_exists( 'bbPress' ) ) { // bbPress. // Search Page. if ( Avada_Helper::bbp_is_search() ) { $this->html_markup .= $this->get_breadcrumb_leaf_markup( 'bbpress_search' ); } elseif ( bbp_is_single_user() ) { // User page. $this->html_markup .= $this->get_breadcrumb_leaf_markup( 'bbpress_user' ); } } // End if(). } // End if(). } /** * Wrap the breadcrumb path in a div. */ private function wrap_breadcrumbs() { $this->html_markup = '<div class="fusion-breadcrumbs">' . $this->html_markup . '</div>'; } /** * Output the full breadcrumb HTML markup. * * @return void */ private function output_breadcrumbs_html() { echo $this->html_markup; // WPCS: XSS ok. } /** * Get the markup of the breadcrumb path prefix. * * @return string The HTML markup of the breadcrumb path prefix. */ private function get_breadcrumb_prefix() { $prefix = ''; // If the home page is a real page. if ( ! is_front_page() ) { // Add chosen path prefix. if ( $this->home_prefix ) { $prefix = '<span class="fusion-breadcrumb-prefix">' . $this->home_prefix . ':</span>'; } } return $prefix; } /** * Get the markup of the "Home" Link. * * @return string The HTML markup of the "Home" link. */ private function get_breadcrumb_home() { $home_link = ''; // If the home page is a real page. if ( ! is_front_page() ) { $home_link = $this->get_single_breadcrumb_markup( $this->home_label, get_home_url() ); } elseif ( is_home() && Avada()->settings->get( 'blog_title' ) ) { // If the home page is the main blog page. $home_link = $this->get_single_breadcrumb_markup( Avada()->settings->get( 'blog_title' ), '', true, true, true ); } return $home_link; } /** * Construct the full post term tree path and add its HTML markup. * * @return string The HTML markup of the full term breadcrumb path. */ private function get_post_terms() { $terms_markup = ''; // If terms are disabled, nothing is to do. if ( ! $this->show_terms ) { return $terms_markup; } // Get the post terms. if ( 'post' == $this->post->post_type ) { $taxonomy = 'category'; } elseif ( 'avada_portfolio' == $this->post->post_type ) { // ThemeFusion Portfolio. $taxonomy = 'portfolio_category'; } elseif ( 'product' == $this->post->post_type && class_exists( 'WooCommerce' ) && Avada_Helper::is_woocommerce() ) { // Woocommerce. $taxonomy = 'product_cat'; } elseif ( 'tribe_events' == $this->post->post_type ) { // The Events Calendar. $taxonomy = 'tribe_events_cat'; } else { // For other post types don't return a terms tree to reduce possible errors. return $terms_markup; } $terms = wp_get_object_terms( $this->post->ID, $taxonomy ); // If post does not have any terms assigned; possible e.g. portfolio posts. if ( empty( $terms ) ) { return $terms_markup; } // Check if the terms are all part of one term tree, i.e. only related terms are selected. $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 ( 1 === count( $terms_by_id ) ) { unset( $terms ); $terms[0] = array_shift( $terms_by_id ); } // The post is only in one term. if ( 1 === count( $terms ) ) { $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 { // We have a single term, so put it out. $terms_markup = $this->get_single_breadcrumb_markup( $terms[0]->name, get_term_link( $terms[0] ) ); } } else { // The post has multiple terms. // Add a parent term, if all children share the same parent. foreach ( $terms as $term ) { $term_parents[] = $term->parent; } if ( 1 === count( array_unique( $term_parents ) ) && $term_parents[0] ) { // Get space separated string of term tree in slugs. $term_tree = get_ancestors( $terms[0]->term_id, $taxonomy ); $term_tree = array_reverse( $term_tree ); // 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 ) ); } } // 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 ); } } } // End if(). return $terms_markup; } /** * Construct the full post ancestors tree path and add its HTML markup. * * @return string The HTML markup of the ancestors tree. */ 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 ); if ( isset( $post_ancestor->post_title ) && isset( $post_ancestor->ID ) ) { $ancestors_markup .= $this->get_single_breadcrumb_markup( apply_filters( 'the_title', $post_ancestor->post_title, $post_ancestor->ID ), get_permalink( $post_ancestor->ID ) ); } } return $ancestors_markup; } /** * Construct the full term ancestors tree path and add its HTML markup. * * @return string The HTML markup of the term ancestors tree. */ 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; } /** * Adds the markup of a post type archive. * * @param string $linked Linked or not linked. * @return string The HTML markup of the post type archive. */ private function get_post_type_archive( $linked = true ) { global $wp_query; $link = ''; $archive_title = ''; $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 ); // Check if we have a post type object. if ( is_object( $post_type_object ) ) { // Woocommerce: archive name should be same as shop page name. if ( 'product' === $post_type ) { return $this->get_woocommerce_shop_page( $linked ); } // Make sure that the Forums slug and link are correct for bbPress. if ( class_exists( 'bbPress' ) && 'topic' === $post_type ) { $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 ); } // Use its name as fallback. $archive_title = $post_type_object->name; // Default case. Check if the post type has a non empty label. if ( isset( $post_type_object->label ) && '' !== $post_type_object->label ) { $archive_title = $post_type_object->label; } elseif ( isset( $post_type_object->labels->menu_name ) && '' !== $post_type_object->labels->menu_name ) { // Alternatively check for a non empty menu name. $archive_title = $post_type_object->labels->menu_name; } } // Check if the breadcrumb should be linked. if ( $linked ) { $link = get_post_type_archive_link( $post_type ); } return $this->get_single_breadcrumb_markup( $archive_title, $link ); } /** * Adds the markup of the woocommerce shop page. * * @param bool $linked Linked or not linked. * @return string The HTML markup of the woocommerce shop page. */ private function get_woocommerce_shop_page( $linked = true ) { global $wp_query; $post_type = 'product'; $post_type_object = get_post_type_object( $post_type ); $shop_page_markup = ''; $link = ''; // Make sure we are on a woocommerce page. if ( is_object( $post_type_object ) && class_exists( 'WooCommerce' ) && ( Avada_Helper::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 ); } $separator = ! is_shop(); $is_leaf = is_shop(); if ( is_search() ) { $separator = true; $is_leaf = false; } $shop_page_markup = $this->get_single_breadcrumb_markup( $shop_page_name, $link, $separator, true, $is_leaf ); } return $shop_page_markup; } /** * Adds the markup of the bbpress main forum archive. * * @return string The HTML markup of the bbpress main forum archive. */ private function get_bbpress_main_archive_page() { global $wp_query; return $this->get_single_breadcrumb_markup( bbp_get_forum_archive_title(), get_post_type_archive_link( 'forum' ) ); } /** * Adds the markup of the breadcrumb leaf. * * @param string $object_type ID of the current query object. * @return string The HTML markup of the breadcrumb leaf. */ 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': $year = esc_html( get_query_var( 'year', 0 ) ); if ( ! $year ) { $year = substr( esc_html( get_query_var( 'm' ) ), 0, 4 ); } $title = $year; break; case 'month': $monthnum = get_query_var( 'monthnum', 0 ); if ( ! $monthnum ) { $monthnum = substr( esc_html( get_query_var( 'm' ) ), 4, 2 ); } $title = $wp_locale->get_month( $monthnum ); break; case 'day': $day = get_query_var( 'day' ); if ( ! $day ) { $day = substr( esc_html( get_query_var( 'm' ) ), 6, 2 ); } $title = $day; break; case 'author': $user = $wp_query->get_queried_object(); if ( ! $user ) { $user = get_user_by( 'ID', $wp_query->query_vars['author'] ); } $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 ); break; } // End switch(). return '<span class="breadcrumb-leaf">' . $title . '</span>'; } /** * Adds the markup of a single breadcrumb. * * @access private * @param string $title The title that should be displayed. * @param string $link The URL of the breadcrumb. * @param bool $separator Set to TRUE to show the separator at the end of the breadcrumb. * @param bool $microdata Set to FALSE to make sure we get a link not being part of the breadcrumb microdata path. * @param bool $is_leaf Set to TRUE to make sure leaf markup is added to the span. * @return string The HTML markup of a single breadcrumb. */ private function get_single_breadcrumb_markup( $title, $link = '', $separator = true, $microdata = true, $is_leaf = false ) { // Init vars. $microdata_itemscope = ''; $microdata_url = ''; $microdata_title = ''; $separator_markup = ''; $leaf_markup = ''; // Setup the elements attributes for breadcrumb microdata rich snippets. if ( $microdata && Avada()->settings->get( 'disable_date_rich_snippet_pages' ) && Avada()->settings->get( 'disable_rich_snippet_title' ) ) { $microdata_itemscope = 'itemscope itemtype="http://data-vocabulary.org/Breadcrumb"'; $microdata_url = 'itemprop="url"'; $microdata_title = 'itemprop="title"'; } if ( $is_leaf ) { $leaf_markup = ' class="breadcrumb-leaf"'; } $breadcrumb_content = '<span ' . $microdata_title . $leaf_markup . '>' . $title . '</span>'; // If a link is set add its markup. if ( $link ) { $breadcrumb_content = '<a ' . $microdata_url . ' href="' . $link . '">' . $breadcrumb_content . '</a>'; } // If a separator should be added, do it. if ( $separator ) { $separator_markup = '<span class="fusion-breadcrumb-sep">' . $this->separator . '</span>'; } return '<span ' . $microdata_itemscope . '>' . $breadcrumb_content . '</span>' . $separator_markup; } } /* Omit closing PHP tag to avoid "Headers already sent" issues. */