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<?php
/**
* Custom breadcrumbs.
*
* @package Sinatra
* @author Sinatra Team <hello@sinatrawp.com>
* @since 1.0.0
*/
/**
* Do not allow direct script access.
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
if ( ! function_exists( 'sinatra_breadcrumb_trail' ) ) {
/**
* Show a breadcrumb.
*
* @since 1.0.0
* @param array $args Arguments to pass.
*/
function sinatra_breadcrumb_trail( $args = array() ) {
// Check if breadcrumb is turned on from WPSEO option.
$breadcrumb_enable = is_callable( 'WPSEO_Options::get' ) ? WPSEO_Options::get( 'breadcrumbs-enable' ) : false;
$wpseo_option = get_option( 'wpseo_internallinks' ) ? get_option( 'wpseo_internallinks' ) : $breadcrumb_enable;
if ( ! is_array( $wpseo_option ) ) {
unset( $wpseo_option );
$wpseo_option = array(
'breadcrumbs-enable' => $breadcrumb_enable,
);
}
if ( function_exists( 'yoast_breadcrumb' ) && $wpseo_option && true === $wpseo_option['breadcrumbs-enable'] ) {
// Yoast breadcrumb.
return yoast_breadcrumb();
} elseif ( function_exists( 'seopress_display_breadcrumbs' ) ) {
// SEOPress breadcrumb.
return seopress_display_breadcrumbs();
} elseif ( function_exists( 'rank_math_the_breadcrumbs' ) ) {
// Rank Math breadcrumbs.
return rank_math_the_breadcrumbs();
}
// Sinatra breadcrumb trail.
$breadcrumb = apply_filters( 'sinatra_breadcrumb_trail_object', null, $args );
if ( ! is_object( $breadcrumb ) ) {
$breadcrumb = new Sinatra_Breadcrumb_Trail( $args );
}
return $breadcrumb->trail();
}
/**
* Before HTML for SEOPress breadcrumbs.
*
* @since 1.0.0
*/
function sinatra_seopress_breadcrumbs_before_html() {
echo '<div class="si-breadcrumbs-wrapper">';
}
add_action( 'seopress_breadcrumbs_before_html', 'sinatra_seopress_breadcrumbs_before_html' );
/**
* After HTML for SEOPress breadcrumbs.
*
* @since 1.0.0
*/
function sinatra_seopress_breadcrumbs_after_html() {
echo '</div>';
}
add_action( 'seopress_breadcrumbs_after_html', 'sinatra_seopress_breadcrumbs_after_html' );
/**
* Overwrite the items for the breadcrumb trail.
*
* @since 1.0.0
*
* @param array $items Array of items belonging to the current breadcrumb trail.
* @param array $args Arguments used to build the breadcrumb trail.
*/
function sinatra_breadcrumb_trail_items( $items, $args ) {
// Add link to the Blog page.
if ( is_singular( 'post' ) ) {
$page_for_posts = get_option( 'page_for_posts' );
$front_page = get_option( 'page_on_front' );
if ( $page_for_posts && $front_page ) {
$posts_page_url = sprintf( '<a href="%s">%s</a>', esc_url( get_permalink( $page_for_posts ) ), esc_html( get_the_title( $page_for_posts ) ) );
array_splice( $items, 1, 0, $posts_page_url );
}
}
return $items;
}
add_filter( 'sinatra_breadcrumb_trail_items', 'sinatra_breadcrumb_trail_items', 10, 2 );
}
/**
* Creates a breadcrumbs menu for the site based on the current page that's being viewed by the user.
*
* @since 1.0.0
* @access public
*/
class Sinatra_Breadcrumb_Trail {
/**
* Array of items belonging to the current breadcrumb trail.
*
* @since 0.1.0
* @access public
* @var array
*/
public $items = array();
/**
* Arguments used to build the breadcrumb trail.
*
* @since 0.1.0
* @access public
* @var array
*/
public $args = array();
/**
* Array of text labels.
*
* @since 1.0.0
* @access public
* @var array
*/
public $labels = array();
/**
* Array of post types (key) and taxonomies (value) to use for single post views.
*
* @since 1.0.0
* @access public
* @var array
*/
public $post_taxonomy = array();
/* ====== Magic Methods ====== */
/**
* Magic method to use in case someone tries to output the layout object as a string.
* We'll just return the trail HTML.
*
* @since 1.0.0
* @access public
* @return string
*/
public function __toString() {
return $this->trail();
}
/**
* Sets up the breadcrumb trail properties. Calls the `Breadcrumb_Trail::add_items()` method
* to creat the array of breadcrumb items.
*
* @since 0.6.0
* @access public
* @param array $args Optional.
* @type string $container Container HTML element. nav|div.
* @type string $before String to output before breadcrumb menu.
* @type string $after String to output after breadcrumb menu.
* @type string $browse_tag The HTML tag to use to wrap the "Browse" header text.
* @type string $list_tag The HTML tag to use for the list wrapper.
* @type string $item_tag The HTML tag to use for the item wrapper.
* @type bool $show_on_front Whether to show when `is_front_page()`.
* @type bool $network Whether to link to the network main site (multisite only).
* @type bool $show_title Whether to show the title (last item) in the trail.
* @type bool $show_browse Whether to show the breadcrumb menu header.
* @type array $labels Text labels. @see Breadcrumb_Trail::set_labels()
* @type array $post_taxonomy Taxonomies to use for post types. @see Breadcrumb_Trail::set_post_taxonomy()
* @type bool $echo Whether to print or return the breadcrumbs.
* @return void
*/
public function __construct( $args = array() ) {
$defaults = array(
'container' => 'nav',
'before' => '',
'after' => '',
'browse_tag' => 'h2',
'list_tag' => 'ul',
'item_tag' => 'li',
'show_on_front' => true,
'network' => false,
'show_title' => true,
'show_browse' => true,
'labels' => array(),
'post_taxonomy' => array(),
'echo' => true,
);
// Parse the arguments with the deaults.
$this->args = apply_filters( 'sinatra_breadcrumb_trail_args', wp_parse_args( $args, $defaults ) );
// Set the labels and post taxonomy properties.
$this->set_labels();
$this->set_post_taxonomy();
// Let's find some items to add to the trail!
$this->add_items();
}
/* ====== Public Methods ====== */
/**
* Formats the HTML output for the breadcrumb trail.
*
* @since 0.6.0
* @access public
* @return string
*/
public function trail() {
// Set up variables that we'll need.
$breadcrumb = '';
$item_count = count( $this->items );
$item_position = 0;
// Connect the breadcrumb trail if there are items in the trail.
if ( 0 < $item_count ) {
// Add 'browse' label if it should be shown.
if ( true === $this->args['show_browse'] ) {
$breadcrumb .= sprintf(
'<%1$s class="trail-browse">%2$s</%1$s>',
tag_escape( $this->args['browse_tag'] ),
$this->labels['browse']
);
}
// Open the unordered list.
$breadcrumb .= sprintf(
'<%s class="trail-items" itemscope itemtype="http://schema.org/BreadcrumbList">',
tag_escape( $this->args['list_tag'] )
);
// Add the number of items and item list order schema.
$breadcrumb .= sprintf( '<meta name="numberOfItems" content="%d" />', absint( $item_count ) );
$breadcrumb .= '<meta name="itemListOrder" content="Ascending" />';
// Loop through the items and add them to the list.
foreach ( $this->items as $item ) {
// Iterate the item position.
++$item_position;
// Check if the item is linked.
preg_match( '/(<a.*?>)(.*?)(<\/a>)/i', $item, $matches );
// Wrap the item text with appropriate itemprop.
$item = ! empty( $matches ) ? sprintf( '%s<span itemprop="name">%s</span>%s', $matches[1], $matches[2], $matches[3] ) : sprintf( '<span itemprop="name">%s</span>', $item );
// Wrap the item with its itemprop.
$item = ! empty( $matches )
? preg_replace( '/(<a.*?)([\'"])>/i', '$1$2 itemprop=$2item$2>', $item )
: sprintf( '<span>%s</span>', $item );
// Add list item classes.
$item_class = 'trail-item';
if ( 1 === $item_position && 1 < $item_count ) {
$item_class .= ' trail-begin';
} elseif ( $item_count === $item_position ) {
$item_class .= ' trail-end';
}
// Create list item attributes.
$attributes = 'itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem" class="' . $item_class . '"';
// Build the meta position HTML.
$meta = sprintf( '<meta itemprop="position" content="%s" />', absint( $item_position ) );
// Build the list item.
$breadcrumb .= sprintf( '<%1$s %2$s>%3$s%4$s</%1$s>', tag_escape( $this->args['item_tag'] ), $attributes, $item, $meta );
}
// Close the unordered list.
$breadcrumb .= sprintf( '</%s>', tag_escape( $this->args['list_tag'] ) );
// Wrap the breadcrumb trail.
$breadcrumb = sprintf(
'<%1$s role="navigation" aria-label="%2$s" class="breadcrumb-trail breadcrumbs" itemprop="breadcrumb">%3$s%4$s%5$s</%1$s>',
tag_escape( $this->args['container'] ),
esc_attr( $this->labels['aria_label'] ),
$this->args['before'],
$breadcrumb,
$this->args['after']
);
}
// Allow developers to filter the breadcrumb trail HTML.
$breadcrumb = apply_filters( 'sinatra_breadcrumb_trail', $breadcrumb, $this->args );
if ( false === $this->args['echo'] ) {
return $breadcrumb;
}
echo $breadcrumb; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
}
/* ====== Protected Methods ====== */
/**
* Sets the labels property. Parses the inputted labels array with the defaults.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function set_labels() {
$defaults = array(
'browse' => esc_html__( 'Browse:', 'sinatra' ),
'aria_label' => esc_attr_x( 'Breadcrumbs', 'breadcrumbs aria label', 'sinatra' ),
'home' => esc_html__( 'Home', 'sinatra' ),
'error_404' => esc_html__( '404 Not Found', 'sinatra' ),
'archives' => esc_html__( 'Archives', 'sinatra' ),
// Translators: %s is the search query.
'search' => esc_html__( 'Search results for: %s', 'sinatra' ),
// Translators: %s is the page number.
'paged' => esc_html__( 'Page %s', 'sinatra' ),
// Translators: %s is the page number.
'paged_comments' => esc_html__( 'Comment Page %s', 'sinatra' ),
// Translators: Minute archive title. %s is the minute time format.
'archive_minute' => esc_html__( 'Minute %s', 'sinatra' ),
// Translators: Weekly archive title. %s is the week date format.
'archive_week' => esc_html__( 'Week %s', 'sinatra' ),
// "%s" is replaced with the translated date/time format.
'archive_minute_hour' => '%s',
'archive_hour' => '%s',
'archive_day' => '%s',
'archive_month' => '%s',
'archive_year' => '%s',
);
$this->labels = apply_filters( 'sinatra_breadcrumb_trail_labels', wp_parse_args( $this->args['labels'], $defaults ) );
}
/**
* Sets the `$post_taxonomy` property. This is an array of post types (key) and taxonomies (value).
* The taxonomy's terms are shown on the singular post view if set.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function set_post_taxonomy() {
$defaults = array();
// If post permalink is set to `%postname%`, use the `category` taxonomy.
if ( '%postname%' === trim( get_option( 'permalink_structure' ), '/' ) ) {
$defaults['post'] = 'category';
}
$this->post_taxonomy = apply_filters( 'sinatra_breadcrumb_trail_post_taxonomy', wp_parse_args( $this->args['post_taxonomy'], $defaults ) );
}
/**
* Runs through the various WordPress conditional tags to check the current page being viewed. Once
* a condition is met, a specific method is launched to add items to the `$items` array.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_items() {
if ( is_front_page() ) {
$this->add_front_page_items();
} else {
// Add the network and site home links.
$this->add_network_home_link();
$this->add_site_home_link();
if ( is_home() ) {
$this->add_blog_items();
} elseif ( is_singular() ) {
$this->add_singular_items();
} elseif ( is_archive() ) {
if ( is_post_type_archive() ) {
$this->add_post_type_archive_items();
} elseif ( is_category() || is_tag() || is_tax() ) {
$this->add_term_archive_items();
} elseif ( is_author() ) {
$this->add_user_archive_items();
} elseif ( get_query_var( 'minute' ) && get_query_var( 'hour' ) ) {
$this->add_minute_hour_archive_items();
} elseif ( get_query_var( 'minute' ) ) {
$this->add_minute_archive_items();
} elseif ( get_query_var( 'hour' ) ) {
$this->add_hour_archive_items();
} elseif ( is_day() ) {
$this->add_day_archive_items();
} elseif ( get_query_var( 'w' ) ) {
$this->add_week_archive_items();
} elseif ( is_month() ) {
$this->add_month_archive_items();
} elseif ( is_year() ) {
$this->add_year_archive_items();
} else {
$this->add_default_archive_items();
}
} elseif ( is_search() ) {
$this->add_search_items();
} elseif ( is_404() ) {
$this->add_404_items();
}
}
// Add paged items if they exist.
$this->add_paged_items();
// Allow developers to overwrite the items for the breadcrumb trail.
$this->items = array_unique( apply_filters( 'sinatra_breadcrumb_trail_items', $this->items, $this->args ) );
}
/**
* Gets front items based on $wp_rewrite->front.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_rewrite_front_items() {
global $wp_rewrite;
if ( $wp_rewrite->front ) {
$this->add_path_parents( $wp_rewrite->front );
}
}
/**
* Adds the page/paged number to the items array.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_paged_items() {
if ( is_singular() && 1 < get_query_var( 'page' ) && true === $this->args['show_title'] ) {
// If viewing a paged singular post.
$this->items[] = sprintf( $this->labels['paged'], number_format_i18n( absint( get_query_var( 'page' ) ) ) );
} elseif ( is_singular() && get_option( 'page_comments' ) && 1 < get_query_var( 'cpage' ) ) {
// If viewing a singular post with paged comments.
$this->items[] = sprintf( $this->labels['paged_comments'], number_format_i18n( absint( get_query_var( 'cpage' ) ) ) );
} elseif ( is_paged() && true === $this->args['show_title'] ) {
// If viewing a paged archive-type page.
$this->items[] = sprintf( $this->labels['paged'], number_format_i18n( absint( get_query_var( 'paged' ) ) ) );
}
}
/**
* Adds the network (all sites) home page link to the items array.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_network_home_link() {
if ( is_multisite() && ! is_main_site() && true === $this->args['network'] ) {
$this->items[] = sprintf( '<a href="%s" rel="home">%s</a>', esc_url( network_home_url() ), $this->labels['home'] );
}
}
/**
* Adds the current site's home page link to the items array.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_site_home_link() {
$network = is_multisite() && ! is_main_site() && true === $this->args['network'];
$label = $network ? get_bloginfo( 'name' ) : $this->labels['home'];
$rel = $network ? '' : ' rel="home"';
$this->items[] = sprintf( '<a href="%s"%s>%s</a>', esc_url( user_trailingslashit( home_url() ) ), $rel, $label );
}
/**
* Adds items for the front page to the items array.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_front_page_items() {
// Only show front items if the 'show_on_front' argument is set to 'true'.
if ( true === $this->args['show_on_front'] || is_paged() || ( is_singular() && 1 < get_query_var( 'page' ) ) ) {
// Add network home link.
$this->add_network_home_link();
if ( is_paged() ) {
// If on a paged view, add the site home link.
$this->add_site_home_link();
} elseif ( true === $this->args['show_title'] ) {
// If on the main front page, add the network home title.
$this->items[] = is_multisite() && true === $this->args['network'] ? get_bloginfo( 'name' ) : $this->labels['home'];
}
}
}
/**
* Adds items for the posts page (i.e., is_home()) to the items array.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_blog_items() {
// Get the post ID and post.
$post_id = get_queried_object_id();
$post = get_post( $post_id );
// If the post has parents, add them to the trail.
if ( 0 < $post->post_parent ) {
$this->add_post_parents( $post->post_parent );
}
// Get the page title.
$title = get_the_title( $post_id );
// Add the posts page item.
if ( is_paged() ) {
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_permalink( $post_id ) ), $title );
} elseif ( $title && true === $this->args['show_title'] ) {
$this->items[] = $title;
}
}
/**
* Adds singular post items to the items array.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_singular_items() {
// Get the queried post.
$post = get_queried_object();
$post_id = get_queried_object_id();
if ( 0 < $post->post_parent ) {
// If the post has a parent, follow the parent trail.
$this->add_post_parents( $post->post_parent );
} else {
// If the post doesn't have a parent, get its hierarchy based off the post type.
$this->add_post_hierarchy( $post_id );
}
// Display terms for specific post type taxonomy if requested.
if ( ! empty( $this->post_taxonomy[ $post->post_type ] ) ) {
$this->add_post_terms( $post_id, $this->post_taxonomy[ $post->post_type ] );
}
// End with the post title.
$post_title = single_post_title( '', false );
if ( $post_title ) {
if ( ( 1 < get_query_var( 'page' ) || is_paged() ) || ( get_option( 'page_comments' ) && 1 < absint( get_query_var( 'cpage' ) ) ) ) {
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_permalink( $post_id ) ), $post_title );
} elseif ( true === $this->args['show_title'] ) {
$this->items[] = $post_title;
}
}
}
/**
* Adds the items to the trail items array for taxonomy term archives.
*
* @since 1.0.0
* @access protected
* @global object $wp_rewrite
* @return void
*/
protected function add_term_archive_items() {
global $wp_rewrite;
// Get some taxonomy and term variables.
$term = get_queried_object();
$taxonomy = get_taxonomy( $term->taxonomy );
$done_post_type = false;
// If there are rewrite rules for the taxonomy.
if ( false !== $taxonomy->rewrite ) {
// If 'with_front' is true, dd $wp_rewrite->front to the trail.
if ( $taxonomy->rewrite['with_front'] && $wp_rewrite->front ) {
$this->add_rewrite_front_items();
}
// Get parent pages by path if they exist.
$this->add_path_parents( $taxonomy->rewrite['slug'] );
// Add post type archive if its 'has_archive' matches the taxonomy rewrite 'slug'.
if ( $taxonomy->rewrite['slug'] ) {
$slug = trim( $taxonomy->rewrite['slug'], '/' );
// Deals with the situation if the slug has a '/' between multiple
// strings. For example, "movies/genres" where "movies" is the post
// type archive.
$matches = explode( '/', $slug );
// If matches are found for the path.
if ( isset( $matches ) ) {
// Reverse the array of matches to search for posts in the proper order.
$matches = array_reverse( $matches );
// Loop through each of the path matches.
foreach ( $matches as $match ) {
// Get public post types that match the rewrite slug.
$post_types = $this->get_post_types_by_slug( $match );
if ( ! empty( $post_types ) ) {
$post_type_object = $post_types[0];
// Add support for a non-standard label of 'archive_title' (special use case).
$label = ! empty( $post_type_object->labels->archive_title ) ? $post_type_object->labels->archive_title : $post_type_object->labels->name;
// Core filter hook.
$label = apply_filters( 'sinatra_post_type_archive_title', $label, $post_type_object->name );
// Add the post type archive link to the trail.
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_post_type_archive_link( $post_type_object->name ) ), $label );
$done_post_type = true;
// Break out of the loop.
break;
}
}
}
}
}
// If there's a single post type for the taxonomy, use it.
if ( false === $done_post_type && 1 === count( $taxonomy->object_type ) && post_type_exists( $taxonomy->object_type[0] ) ) {
// If the post type is 'post'.
if ( 'post' === $taxonomy->object_type[0] ) {
$post_id = get_option( 'page_for_posts' );
if ( 'posts' !== get_option( 'show_on_front' ) && 0 < $post_id ) {
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_permalink( $post_id ) ), get_the_title( $post_id ) );
}
// If the post type is not 'post'.
} else {
$post_type_object = get_post_type_object( $taxonomy->object_type[0] );
$label = ! empty( $post_type_object->labels->archive_title ) ? $post_type_object->labels->archive_title : $post_type_object->labels->name;
// Core filter hook.
$label = apply_filters( 'sinatra_post_type_archive_title', $label, $post_type_object->name );
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_post_type_archive_link( $post_type_object->name ) ), $label );
}
}
// If the taxonomy is hierarchical, list its parent terms.
if ( is_taxonomy_hierarchical( $term->taxonomy ) && $term->parent ) {
$this->add_term_parents( $term->parent, $term->taxonomy );
}
// Add the term name to the trail end.
if ( is_paged() ) {
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_term_link( $term, $term->taxonomy ) ), single_term_title( '', false ) );
} elseif ( true === $this->args['show_title'] ) {
$this->items[] = single_term_title( '', false );
}
}
/**
* Adds the items to the trail items array for post type archives.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_post_type_archive_items() {
// Get the post type object.
$post_type_object = get_post_type_object( get_query_var( 'post_type' ) );
if ( false !== $post_type_object->rewrite ) {
// If 'with_front' is true, add $wp_rewrite->front to the trail.
if ( $post_type_object->rewrite['with_front'] ) {
$this->add_rewrite_front_items();
}
// If there's a rewrite slug, check for parents.
if ( ! empty( $post_type_object->rewrite['slug'] ) ) {
$this->add_path_parents( $post_type_object->rewrite['slug'] );
}
}
// Add the post type [plural] name to the trail end.
if ( is_paged() || is_author() ) {
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_post_type_archive_link( $post_type_object->name ) ), post_type_archive_title( '', false ) );
} elseif ( true === $this->args['show_title'] ) {
$this->items[] = post_type_archive_title( '', false );
}
// If viewing a post type archive by author.
if ( is_author() ) {
$this->add_user_archive_items();
}
}
/**
* Adds the items to the trail items array for user (author) archives.
*
* @since 1.0.0
* @access protected
* @global object $wp_rewrite
* @return void
*/
protected function add_user_archive_items() {
global $wp_rewrite;
// Add $wp_rewrite->front to the trail.
$this->add_rewrite_front_items();
// Get the user ID.
$user_id = get_query_var( 'author' );
// If $author_base exists, check for parent pages.
if ( ! empty( $wp_rewrite->author_base ) && ! is_post_type_archive() ) {
$this->add_path_parents( $wp_rewrite->author_base );
}
// Add the author's display name to the trail end.
if ( is_paged() ) {
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_author_posts_url( $user_id ) ), get_the_author_meta( 'display_name', $user_id ) );
} elseif ( true === $this->args['show_title'] ) {
$this->items[] = get_the_author_meta( 'display_name', $user_id );
}
}
/**
* Adds the items to the trail items array for minute + hour archives.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_minute_hour_archive_items() {
// Add $wp_rewrite->front to the trail.
$this->add_rewrite_front_items();
// Add the minute + hour item.
if ( true === $this->args['show_title'] ) {
$this->items[] = sprintf( $this->labels['archive_minute_hour'], get_the_time( esc_html_x( 'g:i a', 'minute and hour archives time format', 'sinatra' ) ) );
}
}
/**
* Adds the items to the trail items array for minute archives.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_minute_archive_items() {
// Add $wp_rewrite->front to the trail.
$this->add_rewrite_front_items();
// Add the minute item.
if ( true === $this->args['show_title'] ) {
$this->items[] = sprintf( $this->labels['archive_minute'], get_the_time( esc_html_x( 'i', 'minute archives time format', 'sinatra' ) ) );
}
}
/**
* Adds the items to the trail items array for hour archives.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_hour_archive_items() {
// Add $wp_rewrite->front to the trail.
$this->add_rewrite_front_items();
// Add the hour item.
if ( true === $this->args['show_title'] ) {
$this->items[] = sprintf( $this->labels['archive_hour'], get_the_time( esc_html_x( 'g a', 'hour archives time format', 'sinatra' ) ) );
}
}
/**
* Adds the items to the trail items array for day archives.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_day_archive_items() {
// Add $wp_rewrite->front to the trail.
$this->add_rewrite_front_items();
// Get year, month, and day.
$year = sprintf( $this->labels['archive_year'], get_the_time( esc_html_x( 'Y', 'yearly archives date format', 'sinatra' ) ) );
$month = sprintf( $this->labels['archive_month'], get_the_time( esc_html_x( 'F', 'monthly archives date format', 'sinatra' ) ) );
$day = sprintf( $this->labels['archive_day'], get_the_time( esc_html_x( 'j', 'daily archives date format', 'sinatra' ) ) );
// Add the year and month items.
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_year_link( get_the_time( 'Y' ) ) ), $year );
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_month_link( get_the_time( 'Y' ), get_the_time( 'm' ) ) ), $month );
// Add the day item.
if ( is_paged() ) {
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_day_link( get_the_time( 'Y' ) ), get_the_time( 'm' ), get_the_time( 'd' ) ), $day );
} elseif ( true === $this->args['show_title'] ) {
$this->items[] = $day;
}
}
/**
* Adds the items to the trail items array for week archives.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_week_archive_items() {
// Add $wp_rewrite->front to the trail.
$this->add_rewrite_front_items();
// Get the year and week.
$year = sprintf( $this->labels['archive_year'], get_the_time( esc_html_x( 'Y', 'yearly archives date format', 'sinatra' ) ) );
$week = sprintf( $this->labels['archive_week'], get_the_time( esc_html_x( 'W', 'weekly archives date format', 'sinatra' ) ) );
// Add the year item.
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_year_link( get_the_time( 'Y' ) ) ), $year );
// Add the week item.
if ( is_paged() ) {
$this->items[] = esc_url(
get_archives_link(
add_query_arg(
array(
'm' => get_the_time( 'Y' ),
'w' => get_the_time( 'W' ),
),
home_url()
),
$week,
false
)
);
} elseif ( true === $this->args['show_title'] ) {
$this->items[] = $week;
}
}
/**
* Adds the items to the trail items array for month archives.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_month_archive_items() {
// Add $wp_rewrite->front to the trail.
$this->add_rewrite_front_items();
// Get the year and month.
$year = sprintf( $this->labels['archive_year'], get_the_time( esc_html_x( 'Y', 'yearly archives date format', 'sinatra' ) ) );
$month = sprintf( $this->labels['archive_month'], get_the_time( esc_html_x( 'F', 'monthly archives date format', 'sinatra' ) ) );
// Add the year item.
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_year_link( get_the_time( 'Y' ) ) ), $year );
// Add the month item.
if ( is_paged() ) {
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_month_link( get_the_time( 'Y' ), get_the_time( 'm' ) ) ), $month );
} elseif ( true === $this->args['show_title'] ) {
$this->items[] = $month;
}
}
/**
* Adds the items to the trail items array for year archives.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_year_archive_items() {
// Add $wp_rewrite->front to the trail.
$this->add_rewrite_front_items();
// Get the year.
$year = sprintf( $this->labels['archive_year'], get_the_time( esc_html_x( 'Y', 'yearly archives date format', 'sinatra' ) ) );
// Add the year item.
if ( is_paged() ) {
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_year_link( get_the_time( 'Y' ) ) ), $year );
} elseif ( true === $this->args['show_title'] ) {
$this->items[] = $year;
}
}
/**
* Adds the items to the trail items array for archives that don't have a more specific method
* defined in this class.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_default_archive_items() {
// If this is a date-/time-based archive, add $wp_rewrite->front to the trail.
if ( is_date() || is_time() ) {
$this->add_rewrite_front_items();
}
if ( true === $this->args['show_title'] ) {
$this->items[] = $this->labels['archives'];
}
}
/**
* Adds the items to the trail items array for search results.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_search_items() {
if ( is_paged() ) {
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_search_link() ), sprintf( $this->labels['search'], get_search_query() ) );
} elseif ( true === $this->args['show_title'] ) {
$this->items[] = sprintf( $this->labels['search'], get_search_query() );
}
}
/**
* Adds the items to the trail items array for 404 pages.
*
* @since 1.0.0
* @access protected
* @return void
*/
protected function add_404_items() {
if ( true === $this->args['show_title'] ) {
$this->items[] = $this->labels['error_404'];
}
}
/**
* Adds a specific post's parents to the items array.
*
* @since 1.0.0
* @access protected
* @param int $post_id Post ID.
* @return void
*/
protected function add_post_parents( $post_id ) {
$parents = array();
while ( $post_id ) {
// Get the post by ID.
$post = get_post( $post_id );
// If we hit a page that's set as the front page, bail.
if ( 'page' === $post->post_type && 'page' === get_option( 'show_on_front' ) && get_option( 'page_on_front' ) === $post_id ) {
break;
}
// Add the formatted post link to the array of parents.
$parents[] = sprintf( '<a href="%s">%s</a>', esc_url( get_permalink( $post_id ) ), get_the_title( $post_id ) );
// If there's no longer a post parent, break out of the loop.
if ( 0 >= $post->post_parent ) {
break;
}
// Change the post ID to the parent post to continue looping.
$post_id = $post->post_parent;
}
// Get the post hierarchy based off the final parent post.
$this->add_post_hierarchy( $post_id );
// Display terms for specific post type taxonomy if requested.
if ( ! empty( $this->post_taxonomy[ $post->post_type ] ) ) {
$this->add_post_terms( $post_id, $this->post_taxonomy[ $post->post_type ] );
}
// Merge the parent items into the items array.
$this->items = array_merge( $this->items, array_reverse( $parents ) );
}
/**
* Adds a specific post's hierarchy to the items array. The hierarchy is determined by post type's
* rewrite arguments and whether it has an archive page.
*
* @since 1.0.0
* @access protected
* @param int $post_id Post ID.
* @return void
*/
protected function add_post_hierarchy( $post_id ) {
// Get the post type.
$post_type = get_post_type( $post_id );
$post_type_object = get_post_type_object( $post_type );
if ( 'post' === $post_type ) {
// If this is the 'post' post type, get the rewrite front items and map the rewrite tags.
// Add $wp_rewrite->front to the trail.
$this->add_rewrite_front_items();
// Map the rewrite tags.
$this->map_rewrite_tags( $post_id, get_option( 'permalink_structure' ) );
} elseif ( false !== $post_type_object->rewrite ) {
// If the post type has rewrite rules.
// If 'with_front' is true, add $wp_rewrite->front to the trail.
if ( $post_type_object->rewrite['with_front'] ) {
$this->add_rewrite_front_items();
}
// If there's a path, check for parents.
if ( ! empty( $post_type_object->rewrite['slug'] ) ) {
$this->add_path_parents( $post_type_object->rewrite['slug'] );
}
}
// If there's an archive page, add it to the trail.
if ( $post_type_object->has_archive ) {
// Add support for a non-standard label of 'archive_title' (special use case).
$label = ! empty( $post_type_object->labels->archive_title ) ? $post_type_object->labels->archive_title : $post_type_object->labels->name;
// Core filter hook.
$label = apply_filters( 'sinatra_post_type_archive_title', $label, $post_type_object->name );
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_post_type_archive_link( $post_type ) ), $label );
}
// Map the rewrite tags if there's a `%` in the slug.
if ( 'post' !== $post_type && ! empty( $post_type_object->rewrite['slug'] ) && false !== strpos( $post_type_object->rewrite['slug'], '%' ) ) {
$this->map_rewrite_tags( $post_id, $post_type_object->rewrite['slug'] );
}
}
/**
* Gets post types by slug. This is needed because the get_post_types() function doesn't exactly
* match the 'has_archive' argument when it's set as a string instead of a boolean.
*
* @since 0.6.0
* @access protected
* @param int $slug The post type archive slug to search for.
* @return array
*/
protected function get_post_types_by_slug( $slug ) {
$return = array();
$post_types = get_post_types( array(), 'objects' );
foreach ( $post_types as $type ) {
if ( $slug === $type->has_archive || ( true === $type->has_archive && $slug === $type->rewrite['slug'] ) ) {
$return[] = $type;
}
}
return $return;
}
/**
* Adds a post's terms from a specific taxonomy to the items array.
*
* @since 1.0.0
* @access protected
* @param int $post_id The ID of the post to get the terms for.
* @param string $taxonomy The taxonomy to get the terms from.
* @return void
*/
protected function add_post_terms( $post_id, $taxonomy ) {
// Get the post categories.
$terms = get_the_terms( $post_id, $taxonomy );
// Check that categories were returned.
if ( $terms && ! is_wp_error( $terms ) ) {
// Sort the terms by ID and get the first category.
if ( function_exists( 'wp_list_sort' ) ) {
$terms = wp_list_sort( $terms, 'term_id' );
} else {
usort( $terms, '_usort_terms_by_ID' );
}
$term = get_term( $terms[0], $taxonomy );
// If the category has a parent, add the hierarchy to the trail.
if ( 0 < $term->parent ) {
$this->add_term_parents( $term->parent, $taxonomy );
}
// Add the category archive link to the trail.
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_term_link( $term, $taxonomy ) ), $term->name );
}
}
/**
* Get parent posts by path. Currently, this method only supports getting parents of the 'page'
* post type. The goal of this function is to create a clear path back to home given what would
* normally be a "ghost" directory. If any page matches the given path, it'll be added.
*
* @since 1.0.0
* @access protected
* @param string $path The path (slug) to search for posts by.
* @return void
*/
protected function add_path_parents( $path ) {
// Trim '/' off $path in case we just got a simple '/' instead of a real path.
$path = trim( $path, '/' );
// If there's no path, return.
if ( empty( $path ) ) {
return;
}
// Get parent post by the path.
$post = get_page_by_path( $path );
if ( ! empty( $post ) ) {
$this->add_post_parents( $post->ID );
} elseif ( is_null( $post ) ) {
// Separate post names into separate paths by '/'.
$path = trim( $path, '/' );
preg_match_all( '/\/.*?\z/', $path, $matches );
// If matches are found for the path.
if ( isset( $matches ) ) {
// Reverse the array of matches to search for posts in the proper order.
$matches = array_reverse( $matches );
// Loop through each of the path matches.
foreach ( $matches as $match ) {
// If a match is found.
if ( isset( $match[0] ) ) {
// Get the parent post by the given path.
$path = str_replace( $match[0], '', $path );
$post = get_page_by_path( trim( $path, '/' ) );
// If a parent post is found, set the $post_id and break out of the loop.
if ( ! empty( $post ) && 0 < $post->ID ) {
$this->add_post_parents( $post->ID );
break;
}
}
}
}
}
}
/**
* Searches for term parents of hierarchical taxonomies. This function is similar to the WordPress
* function get_category_parents() but handles any type of taxonomy.
*
* @since 1.0.0
* @param int $term_id ID of the term to get the parents of.
* @param string $taxonomy Name of the taxonomy for the given term.
* @return void
*/
protected function add_term_parents( $term_id, $taxonomy ) {
// Set up some default arrays.
$parents = array();
// While there is a parent ID, add the parent term link to the $parents array.
while ( $term_id ) {
// Get the parent term.
$term = get_term( $term_id, $taxonomy );
// Add the formatted term link to the array of parent terms.
$parents[] = sprintf( '<a href="%s">%s</a>', esc_url( get_term_link( $term, $taxonomy ) ), $term->name );
// Set the parent term's parent as the parent ID.
$term_id = $term->parent;
}
// If we have parent terms, reverse the array to put them in the proper order for the trail.
if ( ! empty( $parents ) ) {
$this->items = array_merge( $this->items, array_reverse( $parents ) );
}
}
/**
* Turns %tag% from permalink structures into usable links for the breadcrumb trail. This feels kind of
* hackish for now because we're checking for specific %tag% examples and only doing it for the 'post'
* post type. In the future, maybe it'll handle a wider variety of possibilities, especially for custom post
* types.
*
* @since 0.6.0
* @access protected
* @param int $post_id ID of the post whose parents we want.
* @param string $path Path of a potential parent page.
* @return void
*/
protected function map_rewrite_tags( $post_id, $path ) {
$post = get_post( $post_id );
// Trim '/' from both sides of the $path.
$path = trim( $path, '/' );
// Split the $path into an array of strings.
$matches = explode( '/', $path );
// If matches are found for the path.
if ( is_array( $matches ) ) {
// Loop through each of the matches, adding each to the $trail array.
foreach ( $matches as $match ) {
// Trim any '/' from the $match.
$tag = trim( $match, '/' );
if ( '%year%' === $tag ) {
// If using the %year% tag, add a link to the yearly archive.
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_year_link( get_the_time( 'Y', $post_id ) ) ), sprintf( $this->labels['archive_year'], get_the_time( esc_html_x( 'Y', 'yearly archives date format', 'sinatra' ) ) ) );
} elseif ( '%monthnum%' === $tag ) {
// If using the %monthnum% tag, add a link to the monthly archive.
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_month_link( get_the_time( 'Y', $post_id ), get_the_time( 'm', $post_id ) ) ), sprintf( $this->labels['archive_month'], get_the_time( esc_html_x( 'F', 'monthly archives date format', 'sinatra' ) ) ) );
} elseif ( '%day%' === $tag ) {
// If using the %day% tag, add a link to the daily archive.
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_day_link( get_the_time( 'Y', $post_id ), get_the_time( 'm', $post_id ), get_the_time( 'd', $post_id ) ) ), sprintf( $this->labels['archive_day'], get_the_time( esc_html_x( 'j', 'daily archives date format', 'sinatra' ) ) ) );
} elseif ( '%author%' === $tag ) {
// If using the %author% tag, add a link to the post author archive.
$this->items[] = sprintf( '<a href="%s">%s</a>', esc_url( get_author_posts_url( $post->post_author ) ), get_the_author_meta( 'display_name', $post->post_author ) );
} elseif ( taxonomy_exists( trim( $tag, '%' ) ) ) {
// If using the %category% tag, add a link to the first category archive to match permalinks.
// Force override terms in this post type.
$this->post_taxonomy[ $post->post_type ] = false;
// Add the post categories.
$this->add_post_terms( $post_id, trim( $tag, '%' ) );
}
}
}
}
}