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WC_Widget_Layered_Nav::layered_nav_dropdown() protected WC 1.0

Show dropdown layered nav.

Это метод класса: WC_Widget_Layered_Nav{}

Хуки из метода
Возвращает

true/false. Will nav display?

Использование

// protected - в коде основоного (родительского) или дочернего класса
$result = $this->layered_nav_dropdown( $terms, $taxonomy, $query_type );
$terms(массив) (обязательный)
Terms.
$taxonomy(строка) (обязательный)
Taxonomy.
$query_type(строка) (обязательный)
Query Type.

Код WC Widget Layered Nav::layered nav dropdown: woocommerce/includes/widgets/class-wc-widget-layered-nav.php WC 4.5.2

<?php
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( 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>';

		wc_enqueue_js(
			"
			// Update value on change.
			jQuery( '.dropdown_layered_nav_" . esc_js( $taxonomy_filter_name ) . "' ).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' ).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;
}