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<?php /** * Layered nav widget * * @package WooCommerce\Widgets * @version 2.6.0 / use Automattic\WooCommerce\Internal\ProductAttributesLookup\Filterer; defined( 'ABSPATH' ) \|\| exit; /* * Widget layered nav class. / class WC_Widget_Layered_Nav extends WC_Widget { /* * Constructor. / public function __construct() { $this->widget_cssclass = 'woocommerce widget_layered_nav woocommerce-widget-layered-nav'; $this->widget_description = __( 'Display a list of attributes to filter products in your store.', 'woocommerce' ); $this->widget_id = 'woocommerce_layered_nav'; $this->widget_name = __( 'Filter Products by Attribute', 'woocommerce' ); parent::__construct(); } /* * Updates a particular instance of a widget. * * @see WP_Widget->update * * @param array $new_instance New Instance. * @param array $old_instance Old Instance. * * @return array / public function update( $new_instance, $old_instance ) { $this->init_settings(); return parent::update( $new_instance, $old_instance ); } /* * Outputs the settings update form. * * @see WP_Widget->form * * @param array $instance Instance. / public function form( $instance ) { $this->init_settings(); parent::form( $instance ); } /* * Init settings after post types are registered. / public function init_settings() { $attribute_array = array(); $std_attribute = ''; $attribute_taxonomies = wc_get_attribute_taxonomies(); if ( ! empty( $attribute_taxonomies ) ) { foreach ( $attribute_taxonomies as $tax ) { if ( taxonomy_exists( wc_attribute_taxonomy_name( $tax->attribute_name ) ) ) { $attribute_array[ $tax->attribute_name ] = $tax->attribute_name; } } $std_attribute = current( $attribute_array ); } $this->settings = array( 'title' => array( 'type' => 'text', 'std' => __( 'Filter by', 'woocommerce' ), 'label' => __( 'Title', 'woocommerce' ), ), 'attribute' => array( 'type' => 'select', 'std' => $std_attribute, 'label' => __( 'Attribute', 'woocommerce' ), 'options' => $attribute_array, ), 'display_type' => array( 'type' => 'select', 'std' => 'list', 'label' => __( 'Display type', 'woocommerce' ), 'options' => array( 'list' => __( 'List', 'woocommerce' ), 'dropdown' => __( 'Dropdown', 'woocommerce' ), ), ), 'query_type' => array( 'type' => 'select', 'std' => 'and', 'label' => __( 'Query type', 'woocommerce' ), 'options' => array( 'and' => __( 'AND', 'woocommerce' ), 'or' => __( 'OR', 'woocommerce' ), ), ), ); } /* * Get this widgets taxonomy. * * @param array $instance Array of instance options. * @return string / protected function get_instance_taxonomy( $instance ) { if ( isset( $instance['attribute'] ) ) { return wc_attribute_taxonomy_name( $instance['attribute'] ); } $attribute_taxonomies = wc_get_attribute_taxonomies(); if ( ! empty( $attribute_taxonomies ) ) { foreach ( $attribute_taxonomies as $tax ) { if ( taxonomy_exists( wc_attribute_taxonomy_name( $tax->attribute_name ) ) ) { return wc_attribute_taxonomy_name( $tax->attribute_name ); } } } return ''; } /* * Get this widgets query type. * * @param array $instance Array of instance options. * @return string / protected function get_instance_query_type( $instance ) { return isset( $instance['query_type'] ) ? $instance['query_type'] : 'and'; } /* * Get this widgets display type. * * @param array $instance Array of instance options. * @return string / protected function get_instance_display_type( $instance ) { return isset( $instance['display_type'] ) ? $instance['display_type'] : 'list'; } /* * Output widget. * * @see WP_Widget * * @param array $args Arguments. * @param array $instance Instance. / public function widget( $args, $instance ) { if ( ! is_shop() && ! is_product_taxonomy() ) { return; } $_chosen_attributes = WC_Query::get_layered_nav_chosen_attributes(); $taxonomy = $this->get_instance_taxonomy( $instance ); $query_type = $this->get_instance_query_type( $instance ); $display_type = $this->get_instance_display_type( $instance ); if ( ! taxonomy_exists( $taxonomy ) ) { return; } $terms = get_terms( $taxonomy, array( 'hide_empty' => '1' ) ); if ( 0 === count( $terms ) ) { return; } ob_start(); $this->widget_start( $args, $instance ); if ( 'dropdown' === $display_type ) { wp_enqueue_script( 'selectWoo' ); wp_enqueue_style( 'select2' ); $found = $this->layered_nav_dropdown( $terms, $taxonomy, $query_type ); } else { $found = $this->layered_nav_list( $terms, $taxonomy, $query_type ); } $this->widget_end( $args ); // Force found when option is selected - do not force found on taxonomy attributes. if ( ! is_tax() && is_array( $_chosen_attributes ) && array_key_exists( $taxonomy, $_chosen_attributes ) ) { $found = true; } if ( ! $found ) { ob_end_clean(); } else { echo ob_get_clean(); // @codingStandardsIgnoreLine } } /* * Return the currently viewed taxonomy name. * * @return string / protected function get_current_taxonomy() { return is_tax() ? get_queried_object()->taxonomy : ''; } /* * Return the currently viewed term ID. * * @return int / protected function get_current_term_id() { return absint( is_tax() ? get_queried_object()->term_id : 0 ); } /* * Return the currently viewed term slug. * * @return int / protected function get_current_term_slug() { return absint( is_tax() ? get_queried_object()->slug : 0 ); } /* * Show dropdown layered nav. * * @param array $terms Terms. * @param string $taxonomy Taxonomy. * @param string $query_type Query Type. * @return bool Will nav display? / protected function layered_nav_dropdown( $terms, $taxonomy, $query_type ) { global $wp; $found = false; if ( $taxonomy !== $this->get_current_taxonomy() ) { $term_counts = $this->get_filtered_term_product_counts( wp_list_pluck( $terms, 'term_id' ), $taxonomy, $query_type ); $_chosen_attributes = WC_Query::get_layered_nav_chosen_attributes(); $taxonomy_filter_name = wc_attribute_taxonomy_slug( $taxonomy ); $taxonomy_label = wc_attribute_label( $taxonomy ); / translators: %s: taxonomy name / $any_label = apply_filters( 'woocommerce_layered_nav_any_label', sprintf( __( 'Any %s', 'woocommerce' ), $taxonomy_label ), $taxonomy_label, $taxonomy ); $multiple = 'or' === $query_type; $current_values = isset( $_chosen_attributes[ $taxonomy ]['terms'] ) ? $_chosen_attributes[ $taxonomy ]['terms'] : array(); if ( '' === get_option( 'permalink_structure' ) ) { $form_action = remove_query_arg( array( 'page', 'paged' ), add_query_arg( $wp->query_string, '', home_url( $wp->request ) ) ); } else { $form_action = preg_replace( '%\/page/[0-9]+%', '', home_url( user_trailingslashit( $wp->request ) ) ); } echo '<form method="get" action="' . esc_url( $form_action ) . '" class="woocommerce-widget-layered-nav-dropdown">'; echo '<select class="woocommerce-widget-layered-nav-dropdown dropdown_layered_nav_' . esc_attr( $taxonomy_filter_name ) . '"' . ( $multiple ? 'multiple="multiple"' : '' ) . '>'; echo '<option value="">' . esc_html( $any_label ) . '</option>'; foreach ( $terms as $term ) { // If on a term page, skip that term in widget list. if ( $term->term_id === $this->get_current_term_id() ) { continue; } // Get count based on current view. $option_is_set = in_array( $term->slug, $current_values, true ); $count = isset( $term_counts[ $term->term_id ] ) ? $term_counts[ $term->term_id ] : 0; // Only show options with count > 0. if ( 0 < $count ) { $found = true; } elseif ( 0 === $count && ! $option_is_set ) { continue; } echo '<option value="' . esc_attr( urldecode( $term->slug ) ) . '" ' . selected( $option_is_set, true, false ) . '>' . esc_html( $term->name ) . '</option>'; } echo '</select>'; if ( $multiple ) { echo '<button class="woocommerce-widget-layered-nav-dropdown__submit" type="submit" value="' . esc_attr__( 'Apply', 'woocommerce' ) . '">' . esc_html__( 'Apply', 'woocommerce' ) . '</button>'; } if ( 'or' === $query_type ) { echo '<input type="hidden" name="query_type_' . esc_attr( $taxonomy_filter_name ) . '" value="or" />'; } echo '<input type="hidden" name="filter_' . esc_attr( $taxonomy_filter_name ) . '" value="' . esc_attr( implode( ',', $current_values ) ) . '" />'; echo wc_query_string_form_fields( null, array( 'filter_' . $taxonomy_filter_name, 'query_type_' . $taxonomy_filter_name ), '', true ); // @codingStandardsIgnoreLine echo '</form>'; $handle = 'wc-widget-dropdown-layered-nav-' . $taxonomy_filter_name; wp_register_script( $handle, '', array( 'jquery', 'selectWoo' ), WC_VERSION, array( 'in_footer' => true ) ); wp_enqueue_script( $handle ); wp_add_inline_script( $handle, " // Update value on change. jQuery( '.dropdown_layered_nav_" . esc_js( $taxonomy_filter_name ) . "' ).on( 'change', function() { var slug = jQuery( this ).val(); jQuery( ':input[name=\"filter_" . esc_js( $taxonomy_filter_name ) . "\"]' ).val( slug ); // Submit form on change if standard dropdown. if ( ! jQuery( this ).attr( 'multiple' ) ) { jQuery( this ).closest( 'form' ).trigger( 'submit' ); } }); // Use Select2 enhancement if possible if ( jQuery().selectWoo ) { var wc_layered_nav_select = function() { jQuery( '.dropdown_layered_nav_" . esc_js( $taxonomy_filter_name ) . "' ).selectWoo( { placeholder: decodeURIComponent('" . rawurlencode( (string) wp_specialchars_decode( $any_label ) ) . "'), minimumResultsForSearch: 5, width: '100%', allowClear: " . ( $multiple ? 'false' : 'true' ) . ", language: { noResults: function() { return '" . esc_js( _x( 'No matches found', 'enhanced select', 'woocommerce' ) ) . "'; } } } ); }; wc_layered_nav_select(); } " ); } return $found; } /* * Count products within certain terms, taking the main WP query into consideration. * * This query allows counts to be generated based on the viewed products, not all products. * * @param array $term_ids Term IDs. * @param string $taxonomy Taxonomy. * @param string $query_type Query Type. * @return array / protected function get_filtered_term_product_counts( $term_ids, $taxonomy, $query_type ) { return wc_get_container()->get( Filterer::class )->get_filtered_term_product_counts( $term_ids, $taxonomy, $query_type ); } /* * Wrapper for WC_Query::get_main_tax_query() to ease unit testing. * * @since 4.4.0 * @return array / protected function get_main_tax_query() { return WC_Query::get_main_tax_query(); } /* * Wrapper for WC_Query::get_main_search_query_sql() to ease unit testing. * * @since 4.4.0 * @return string / protected function get_main_search_query_sql() { return WC_Query::get_main_search_query_sql(); } /* * Wrapper for WC_Query::get_main_search_queryget_main_meta_query to ease unit testing. * * @since 4.4.0 * @return array / protected function get_main_meta_query() { return WC_Query::get_main_meta_query(); } /* * Show list based layered nav. * * @param array $terms Terms. * @param string $taxonomy Taxonomy. * @param string $query_type Query Type. * @return bool Will nav display? */ protected function layered_nav_list( $terms, $taxonomy, $query_type ) { // List display. echo '<ul class="woocommerce-widget-layered-nav-list">'; $term_counts = $this->get_filtered_term_product_counts( wp_list_pluck( $terms, 'term_id' ), $taxonomy, $query_type ); $_chosen_attributes = WC_Query::get_layered_nav_chosen_attributes(); $found = false; $base_link = $this->get_current_page_url(); foreach ( $terms as $term ) { $current_values = isset( $_chosen_attributes[ $taxonomy ]['terms'] ) ? $_chosen_attributes[ $taxonomy ]['terms'] : array(); $option_is_set = in_array( $term->slug, $current_values, true ); $count = isset( $term_counts[ $term->term_id ] ) ? $term_counts[ $term->term_id ] : 0; // Skip the term for the current archive. if ( $this->get_current_term_id() === $term->term_id ) { continue; } // Only show options with count > 0. if ( 0 < $count ) { $found = true; } elseif ( 0 === $count && ! $option_is_set ) { continue; } $filter_name = 'filter_' . wc_attribute_taxonomy_slug( $taxonomy ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended $current_filter = isset( $_GET[ $filter_name ] ) ? explode( ',', wc_clean( wp_unslash( $_GET[ $filter_name ] ) ) ) : array(); $current_filter = array_map( 'sanitize_title', $current_filter ); if ( ! in_array( $term->slug, $current_filter, true ) ) { $current_filter[] = $term->slug; } $link = remove_query_arg( $filter_name, $base_link ); // Add current filters to URL. foreach ( $current_filter as $key => $value ) { // Exclude query arg for current term archive term. if ( $value === $this->get_current_term_slug() ) { unset( $current_filter[ $key ] ); } // Exclude self so filter can be unset on click. if ( $option_is_set && $value === $term->slug ) { unset( $current_filter[ $key ] ); } } if ( ! empty( $current_filter ) ) { asort( $current_filter ); $link = add_query_arg( $filter_name, implode( ',', $current_filter ), $link ); // Add Query type Arg to URL. if ( 'or' === $query_type && ! ( 1 === count( $current_filter ) && $option_is_set ) ) { $link = add_query_arg( 'query_type_' . wc_attribute_taxonomy_slug( $taxonomy ), 'or', $link ); } $link = str_replace( '%2C', ',', $link ); } if ( $count > 0 \|\| $option_is_set ) { $link = apply_filters( 'woocommerce_layered_nav_link', $link, $term, $taxonomy ); $term_html = '<a rel="nofollow" href="' . esc_url( $link ) . '">' . esc_html( $term->name ) . '</a>'; } else { $link = false; $term_html = '<span>' . esc_html( $term->name ) . '</span>'; } $term_html .= ' ' . apply_filters( 'woocommerce_layered_nav_count', '<span class="count">(' . absint( $count ) . ')</span>', $count, $term ); echo '<li class="woocommerce-widget-layered-nav-list__item wc-layered-nav-term ' . ( $option_is_set ? 'woocommerce-widget-layered-nav-list__item--chosen chosen' : '' ) . '">'; // phpcs:ignore WordPress.Security.NonceVerification.Recommended, WordPress.Security.EscapeOutput.OutputNotEscaped echo apply_filters( 'woocommerce_layered_nav_term_html', $term_html, $term, $link, $count ); echo '</li>'; } echo '</ul>'; return $found; } }