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<?php namespace AIOSEO\Plugin\Common\Breadcrumbs; // Exit if accessed directly. if ( ! defined( 'ABSPATH' ) ) { exit; } /** * Class Frontend. * * @since 4.1.1 */ class Frontend { /** * A local 'cached' crumb array. * * @since 4.1.1 * * @var array */ public $breadcrumbs = []; /** * Gets the current page's breadcrumbs. * * @since 4.1.1 * * @return array */ public function getBreadcrumbs() { if ( ! empty( $this->breadcrumbs ) ) { return apply_filters( 'aioseo_breadcrumbs_trail', $this->breadcrumbs ); } $type = ''; $reference = get_queried_object(); // These types need the queried object for reference. if ( is_object( $reference ) ) { if ( is_single() ) { $type = 'single'; } if ( is_singular( 'post' ) ) { $type = 'post'; } if ( is_page() && ! is_front_page() ) { $type = 'page'; } if ( is_category() || is_tag() ) { $type = 'category'; } if ( is_tax() ) { $type = 'taxonomy'; } if ( is_post_type_archive() ) { $type = 'postTypeArchive'; } if ( is_author() ) { $type = 'author'; } if ( is_home() ) { $type = 'blog'; } // Support WC shop page. if ( aioseo()->helpers->isWooCommerceShopPage() ) { $type = 'wcShop'; } // Support WC products. if ( aioseo()->helpers->isWooCommerceProductPage() ) { $type = 'wcProduct'; } } if ( is_date() ) { $type = 'date'; $reference = [ 'year' => get_query_var( 'year' ), 'month' => get_query_var( 'monthnum' ), 'day' => get_query_var( 'day' ) ]; } if ( is_search() ) { $type = 'search'; $reference = htmlspecialchars( sanitize_text_field( get_search_query() ) ); } if ( is_404() ) { $type = 'notFound'; } $paged = false; if ( is_paged() || ( is_singular() && 1 < get_query_var( 'page' ) ) ) { global $wp; $paged = [ 'paged' => get_query_var( 'paged' ) ? get_query_var( 'paged' ) : get_query_var( 'page' ), 'link' => home_url( $wp->request ) ]; } return apply_filters( 'aioseo_breadcrumbs_trail', aioseo()->breadcrumbs->buildBreadcrumbs( $type, $reference, $paged ) ); } /** * Helper function to display breadcrumbs for a specific page. * * @since 4.1.1 * * @param bool $echo Print out the breadcrumb. * @param string $type The type for the breadcrumb. * @param string $reference A reference to be used for rendering the breadcrumb. * @return string|void A html breadcrumb. */ public function sideDisplay( $echo = true, $type = '', $reference = '' ) { // Save previously built breadcrumbs. $previousCrumbs = $this->breadcrumbs; // Build and run the sideDisplay. $this->breadcrumbs = aioseo()->breadcrumbs->buildBreadcrumbs( $type, $reference ); $sideDisplay = $this->display( $echo ); // Restore previously built breadcrumbs. $this->breadcrumbs = $previousCrumbs; return $sideDisplay; } /** * Display a generic breadcrumb preview. * * @since 4.1.5 * * @param bool $echo Print out the breadcrumb. * @param string $label The preview crumb label. * @return string|void A html breadcrumb. */ public function preview( $echo = true, $label = '' ) { // Translators: "Crumb" refers to a part of the breadcrumb trail. $label = empty( $label ) ? __( 'Sample Crumb', 'all-in-one-seo-pack' ) : $label; return $this->sideDisplay( $echo, 'preview', $label ); } /** * Display the breadcrumb in the frontend. * * @since 4.1.1 * * @param bool $echo Print out the breadcrumb. * @return string|void A html breadcrumb. */ public function display( $echo = true ) { if ( in_array( 'breadcrumbsEnable', aioseo()->internalOptions->deprecatedOptions, true ) && ! aioseo()->options->deprecated->breadcrumbs->enable ) { return; } if ( ! apply_filters( 'aioseo_breadcrumbs_output', true ) ) { return; } // We can only run after this action because we need all post types loaded. if ( ! did_action( 'init' ) ) { return; } $breadcrumbs = $this->getBreadcrumbs(); if ( empty( $breadcrumbs ) ) { return; } $breadcrumbsCount = count( $breadcrumbs ); $display = '<div class="aioseo-breadcrumbs">'; foreach ( $breadcrumbs as $breadcrumb ) { --$breadcrumbsCount; $breadcrumbDisplay = $this->breadcrumbToDisplay( $breadcrumb ); // Strip link from Last crumb. if ( 0 === $breadcrumbsCount && aioseo()->breadcrumbs->showCurrentItem() && ! $this->linkCurrentItem() && 'default' === $breadcrumbDisplay['templateType'] ) { $breadcrumbDisplay['template'] = $this->stripLink( $breadcrumbDisplay['template'] ); } $display .= $breadcrumbDisplay['template']; if ( 0 < $breadcrumbsCount ) { $display .= $this->getSeparator(); } } $display .= '</div>'; // Final security cleaning. $display = wp_kses_post( $display ); if ( $echo ) { echo $display; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped } return $display; } /** * Turns a crumb array into a rendered html crumb. * * @since 4.1.1 * * @param array $item The crumb array. * @return string|void The crumb html. */ protected function breadcrumbToDisplay( $item ) { $templateItem = $this->getCrumbTemplate( $item ); if ( empty( $templateItem['template'] ) ) { return; } // Do tags. $templateItem['template'] = aioseo()->breadcrumbs->tags->replaceTags( $templateItem['template'], $item ); $templateItem['template'] = preg_replace_callback( '/>(?![^<]*>)(?![^>]*")([^<]*?)>/', function ( $matches ) { return '>' . $matches[1] . '>'; }, htmlentities( $templateItem['template'] ) ); // Restore html. $templateItem['template'] = aioseo()->helpers->decodeHtmlEntities( $templateItem['template'] ); // Remove html link if it comes back from the template but we passed no links to it. if ( empty( $item['link'] ) ) { $templateItem['template'] = $this->stripLink( $templateItem['template'] ); } // Allow shortcodes to run in the final html. $templateItem['template'] = do_shortcode( $templateItem['template'] ); return $templateItem; } /** * Helper function to get a crumb's template. * * @since 4.1.1 * * @param array $crumb The crumb array. * @return string The html template. */ protected function getTemplate( $crumb ) { return $this->getDefaultTemplate( $crumb ); } /** * Helper function to get a crumb's template. * * @since 4.1.1 * * @param array $crumb The crumb array. * @return array The template type and html. */ protected function getCrumbTemplate( $crumb ) { return [ 'templateType' => 'default', 'template' => $this->getTemplate( $crumb ) ]; } /** * Default html template. * * @since 4.1.1 * * @param string $type The crumb's type. * @param mixed $reference The crumb's reference. * @return string The default crumb template. */ public function getDefaultTemplate( $type = '', $reference = '' ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable return <<<TEMPLATE <span class="aioseo-breadcrumb"> <a href="#breadcrumb_link" title="#breadcrumb_label">#breadcrumb_label</a> </span> TEMPLATE; } /** * Helper function to strip a html link from the crumb. * * @since 4.1.1 * * @param string $html The crumb's html. * @return string A crumb html without links. */ public function stripLink( $html ) { return preg_replace( '/<a\s.*?>|<\/a>/is', '', $html ); } /** * Get the breadcrumb configured separator. * * @since 4.1.1 * * @return string The separator html. */ public function getSeparator() { $separator = apply_filters( 'aioseo_breadcrumbs_separator_symbol', aioseo()->options->breadcrumbs->separator ); return apply_filters( 'aioseo_breadcrumbs_separator', '<span class="aioseo-breadcrumb-separator">' . esc_html( $separator ) . '</span>' ); } /** * Function to filter the linkCurrentItem option. * * @since 4.1.3 * * @return bool Link current item. */ public function linkCurrentItem() { return apply_filters( 'aioseo_breadcrumbs_link_current_item', aioseo()->options->breadcrumbs->linkCurrentItem ); } }
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