rt-breadcrumb.php

<?php
#-----------------------------------------
#   RT-Theme rt_breadcrumb.php
#-----------------------------------------

add_action("rt_breadcrumb_menu", "rt_breadcrumb", 10, 1 );

/* RT-Breadcrumb Function */
if( ! function_exists('rt_breadcrumb') ){
    function rt_breadcrumb( $args = array() ){
        global $rt_taxonomy, $post, $rt_delimiter, $rt_opened_divs, $wp_query;

        //the breadcrumb text before the menu
        $breadcrumb_text = get_option(RT_THEMESLUG.'_breadcrumb_text') ? get_option(RT_THEMESLUG.'_breadcrumb_text')."&nbsp;" : "";

        //default values
        $defaults =  array(
            'rt_delimiter'   => ' <span class="icon-angle-right"></span> ',
            'wrap_before' => '',
            'wrap_after'  => '',
            'breadcrumb_text' => ''.rt_wpml_t(RT_THEMESLUG, 'Breadcrumb Menu Text', $breadcrumb_text ).'',
            'home'        => __( 'Home', 'rt_theme' ),
        );

        $args = wp_parse_args( $args, $defaults );

        //extract variables
        extract( $args );

        //define variables
        $rt_is_bbpress = $breadcrumb = "";

        /*  WooCommerce Breadcrumb */
        if ( function_exists( 'woocommerce_breadcrumb' ) ) {
            if( is_woocommerce() ){
                $defaults = array(
                    'delimiter'  => $rt_delimiter,
                    'wrap_before'  => $wrap_before . '<div itemscope itemtype="http://data-vocabulary.org/Breadcrumb"><a class="icon-home" itemprop="url" href="'. RT_BLOGURL .'"><span title="'. get_bloginfo('name') .'">'.$home.'</span></a></div>' .$rt_delimiter,
                    'wrap_after' => $wrap_after,
                    'before'   => '',
                    'after'   => '',
                    'home'    => false,
                );

                woocommerce_breadcrumb($defaults);
                return false;
            }
        }

        /*  YOAST Breadcrumb */
        $yoast_enabled=false;
        if ( function_exists( 'yoast_breadcrumb' ) ) {
            $yoast_options = get_option( 'wpseo_internallinks' );
             if(isset($yoast_options['breadcrumbs-enable'])  && !empty($yoast_options['breadcrumbs-enable'])){
                yoast_breadcrumb($wrap_before ,$wrap_after);
                return false;
        }
        }

        $breadcrumb .= $wrap_before;
        $breadcrumb .= ! empty( $breadcrumb_text ) ? $breadcrumb_text." " : "";

        /*
          BBPRESS Breadcrumb
          use BBpress Breadcrumb if for bbpress pages
        */
        if ( function_exists( 'bbp_breadcrumb' ) ) {
            global $rt_bb_breadcrumb, $rt_wrap_before,$rt_wrap_after,$rt_breadcrumb_text;

            $rt_wrap_before = $wrap_before;
            $rt_wrap_after = $wrap_after;
            $rt_breadcrumb_text = $breadcrumb_text;

            //check the current page is if it is part of bbpress
            if ( is_bbpress() ){
                $breadcrumb .= $rt_bb_breadcrumb;
                $rt_is_bbpress = true;
            }
        }

        //if its not a bbpress page run default breadcrumb
        if( ! $rt_is_bbpress ){

                //Home Page
                    if( ! is_home() && ! is_front_page() ){
                        $breadcrumb .= rt_create_breadcrumb_item( array( "class" => "icon-home", "sublink" => false, "url"=> RT_BLOGURL, "title"=> get_bloginfo('name'), "link_name" => $home ) );
                    }

                //Pages
                if ( is_page() && ! is_home() && ! is_front_page() ){
                    $breadcrumb .= rt_page_parents();
                }

                //Single posts
                elseif ( is_single() && !is_attachment() ){


                    // Get post type
                    $post_type = get_post_type();

                    //regular single posts
                    if($post_type == 'post'){

                        //get base page
                        $breadcrumb .= rt_get_base_page("blog");

                        $this_category = get_the_category();

                        if( isset( $this_category[0] ) ){
                            $breadcrumb .= rt_get_category_parents( $this_category[0] );
                        }

                        $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> $post->post_title, "rt_delimiter" => "" ) );

                    }

                    //product single posts
                    elseif($post_type == 'products'){

                        //get base page
                        $breadcrumb .= rt_get_base_page("products");

                        //categories of post
                        $terms = wp_get_post_terms( $post->ID, "product_categories",  array( 'orderby' => 'parent', 'order' => 'DESC' ) );

                        //select only 1st one and create breadcrumb link
                        if( isset( $terms[0] ) ){

                            $term_link = get_term_link( $terms[0]->slug, $terms[0]->taxonomy );
                            $term_name = $terms[0]->name;

                            //check term has parents
                            if( $terms[0]->parent ){
                                $breadcrumb .= rt_get_term_parents( $terms[0]->term_id, $terms[0]->taxonomy );
                            }

                            //breadcrumb link of the term
                            $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> esc_attr( sprintf( __( "View all products in %s", "rt_theme" ), $term_name ) ), "link_name"=> esc_attr( $term_name ), "url" =>  esc_url( $term_link ) ) );

                        }

                        //breadcrumb link of current post
                        $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> $post->post_title, "rt_delimiter" => "" ) );

                    }

                    //portfolio single posts
                    elseif($post_type == 'portfolio'){

                        //get base page
                        $breadcrumb .= rt_get_base_page("portfolio");

                        //categories of post
                        $terms = wp_get_post_terms( $post->ID, "portfolio_categories",  array( 'orderby' => 'parent', 'order' => 'DESC' ) );

                        //select only 1st one and create breadcrumb link
                        if( isset( $terms[0] ) ){

                            $term_link = get_term_link( $terms[0]->slug, $terms[0]->taxonomy );
                            $term_name = $terms[0]->name;

                            //check term has parents
                            if( $terms[0]->parent ){
                                $breadcrumb .= rt_get_term_parents( $terms[0]->term_id, $terms[0]->taxonomy );
                            }

                            //breadcrumb link of the term
                            $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> esc_attr( sprintf( __( "View all works in %s", "rt_theme" ), $term_name ) ), "link_name"=> esc_attr( $term_name ), "url" =>  esc_url( $term_link ) ) );

                        }

                        //breadcrumb link of current post
                        $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> $post->post_title, "rt_delimiter" => "" ) );

                    }

                    //other single custom posts
                    else{

                        //breadcrumb link of current post
                        $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> $post->post_title, "rt_delimiter" => "" ) );

                    }

                }

                //Taxonomies
                elseif ( is_tax() ){

                        //get base page for products
                        if( get_query_var( 'taxonomy' ) == "product_categories" ){
                            $breadcrumb .= rt_get_base_page("products");
                        }

                        //get base page for portfolio
                        if( get_query_var( 'taxonomy' ) == "portfolio_categories" ){
                            $breadcrumb .= rt_get_base_page("portfolio");
                        }

                        $this_term = get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) );

                        $breadcrumb .= rt_get_term_parents( $this_term->term_id, $this_term->taxonomy );
                        $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> esc_attr( $this_term->name ), "rt_delimiter"=>""  ) );

                }

                //categories
                elseif ( is_category() ){

                        //get base page
                        $breadcrumb .= rt_get_base_page("blog");

                        $this_category_obj = $wp_query->get_queried_object();
                        $this_category = get_category( $this_category_obj->term_id );

                        if( $this_category->parent ){
                            $breadcrumb .= rt_get_category_parents( $this_category->parent );
                        }

                        $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> esc_attr( $this_category->name ), "rt_delimiter"=>""  ) );


                //404
                } elseif ( is_404() ) {

                    $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> __( 'Error 404', 'rt_theme' ),  "rt_delimiter"=>""  ) );


                //search
                } elseif ( is_search() ) {

                    $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> sprintf( __( 'Search results for: %s', 'rt_theme' ), get_search_query() ),  "rt_delimiter"=>""  ) );

                //tag
                } elseif ( is_tag() ) {

                    $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> sprintf( __( 'Posts tagged: %s', 'rt_theme' ), single_tag_title('', false) ),  "rt_delimiter"=>""  ) );

                //author
                } elseif ( is_author() ) {

                    $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> sprintf( __( 'Author: %s', 'rt_theme' ), get_the_author() ),  "rt_delimiter"=>""  ) );

                //attachment
                } elseif ( is_attachment() ) {


                    $this_category = get_the_category();

                    if( $this_category ){
                        $breadcrumb .= rt_get_category_parents( $this_category );
                    }

                    $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> $post->post_title, "rt_delimiter" => "" ) );

                }else {

                    if( ! is_home() && ! is_front_page() ){
                        $breadcrumb .= rt_create_breadcrumb_item( array( "title"=> wp_title('',false), "link_name"=> wp_title('',false), "rt_delimiter"=>""  ) );
                    }
                }


                //close divs
                for ($i=0; $i < $rt_opened_divs ; $i++) {
                    $breadcrumb .= "</div>";
                }
        }

        $breadcrumb .= $wrap_after;

        $breadcrumb_menu = $breadcrumb;

        //echo breadcrumb
        echo $breadcrumb_menu;
    }
}

// page category parents function
if( ! function_exists('rt_get_term_parents') ){
    function rt_get_term_parents( $term_id, $rt_taxonomy) {

            $item = "";
            $the_term = get_term_by( 'id', $term_id , $rt_taxonomy );
            $get_ancestors = array_reverse( get_ancestors( $the_term->term_id, $rt_taxonomy ) );

            foreach ( $get_ancestors as $ancestor ) {
                $ancestor = get_term( $ancestor, $rt_taxonomy );
                $link = get_term_link( $ancestor->slug, $rt_taxonomy ) ;
                $name = esc_html( $ancestor->name ) ;
                $item .= rt_create_breadcrumb_item( array( "title"=> esc_attr( $name ), "link_name"=> $name, "url" =>  esc_url( $link ) ) );
            }

            return $item;
    }
}

// page category parents function
if( ! function_exists('rt_get_category_parents') ){
    function rt_get_category_parents( $id, $visited = array() ) {
        $chain = '';
        $parent = get_term( $id, 'category' );

        if ( is_wp_error( $parent ) )
            return $parent;

        $name = $parent->name;

        if ( $parent->parent && ( $parent->parent != $parent->term_id ) && !in_array( $parent->parent, $visited ) ) {
            $visited[] = $parent->parent;
            $chain .= rt_get_category_parents( $parent->parent, $visited );
        }

        $chain .= rt_create_breadcrumb_item( array( "title"=> esc_attr( sprintf( __( "View all posts in %s", "rt_theme" ), $parent->name ) ), "link_name"=> esc_attr( $parent->name ), "url" =>  esc_url( get_category_link( $parent->term_id ) ) ) );

        return $chain;
    }
}

// page parents function
if( ! function_exists('rt_create_breadcrumb_item') ){
    function rt_create_breadcrumb_item( $atts = array() ){
        global $rt_delimiter, $rt_opened_divs;

        //defaults
        extract(shortcode_atts(array(
            "sublink" => "true",
            "url"     => "",
            "title"   => "",
            "link_name"=> "",
            "rt_delimiter" => $rt_delimiter,
            "class" => ""
        ), $atts));

        if ( ! isset( $rt_opened_divs ) || empty( $rt_opened_divs ) ){
            $rt_opened_divs = 1;
        }else{
            $rt_opened_divs++;
        }

        $link_name = ! empty( $link_name ) ? $link_name : $title;

        $item = "";

        $item .= ( $sublink ) ? "\n".'<div itemscope itemprop="child" itemtype="http://data-vocabulary.org/Breadcrumb">' : '<div itemscope itemtype="http://data-vocabulary.org/Breadcrumb">' ;

        $item .= ! empty( $url ) ? '<a class="'.$class.'" href="'.$url.'" itemprop="url">' : "";

        $item .= '<span itemprop="title" title="'.$title.'">' . $link_name . '</span>';

        $item .= ! empty( $url ) ? '</a>' : "";

        $item .= $rt_delimiter;

        return $item;
    }
}

// page parents function
if( ! function_exists('rt_page_parents') ){
    function rt_page_parents(){
        global $post;

        $items = "";


        //parent pages
        if ( $post->post_parent ){

            //parent page of current page
            $parent_page = get_page( $post->post_parent );

            do{
                //create breadcrum item for this page
                $items = rt_create_breadcrumb_item( array( "url"=> get_permalink( rt_wpml_page_id( $parent_page->ID ) ), "title"=> get_the_title( rt_wpml_page_id( $parent_page->ID ) ) ) ) . $items;

                //find parent page of this page
                $parent_page = get_page( $parent_page->post_parent );

            }

            while ( empty( $parent_page->post_parent ) ) ;

        }

        //current page
        $items .= rt_create_breadcrumb_item( array( "title"=> $post->post_title, "rt_delimiter" => "" ) );

        return $items;
    }
}

//get base page
if( ! function_exists('rt_get_base_page') ){
    function rt_get_base_page( $for = "" ){

        $page = "";

        if( $for == "products" && RT_PRODUCTPAGE != "" ){

            $page = rt_create_breadcrumb_item( array( "url"=> get_permalink( rt_wpml_page_id( RT_PRODUCTPAGE ) ), "title"=> get_the_title( rt_wpml_page_id( RT_PRODUCTPAGE ) ) ) ) ;

        }elseif( $for == "portfolio" && RT_PORTFOLIOPAGE != "" ){

            $page = rt_create_breadcrumb_item( array( "url"=> get_permalink( rt_wpml_page_id( RT_PORTFOLIOPAGE ) ), "title"=> get_the_title( rt_wpml_page_id( RT_PORTFOLIOPAGE ) ) ) ) ;

        }elseif( $for == "blog" && RT_BLOGPAGE != "" ){

            $page = rt_create_breadcrumb_item( array( "url"=> get_permalink( rt_wpml_page_id( RT_BLOGPAGE ) ), "title"=> get_the_title( rt_wpml_page_id( RT_BLOGPAGE ) ) ) ) ;
        }

        return $page;
    }
}
?>