408 lines
12 KiB
PHP
408 lines
12 KiB
PHP
<?php
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if ( ! defined( 'ABSPATH' ) ) {
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exit;
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}
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/**
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* Layered Navigation Widget
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*
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* @author WooThemes
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* @category Widgets
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* @package WooCommerce/Widgets
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* @version 2.3.0
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* @extends WC_Widget
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*/
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class WC_Widget_Layered_Nav extends WC_Widget {
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/**
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* Constructor
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*/
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public function __construct() {
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$this->widget_cssclass = 'woocommerce widget_layered_nav';
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$this->widget_description = __( 'Shows a custom attribute in a widget which lets you narrow down the list of products when viewing product categories.', 'woocommerce' );
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$this->widget_id = 'woocommerce_layered_nav';
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$this->widget_name = __( 'WooCommerce Layered Nav', 'woocommerce' );
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parent::__construct();
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}
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/**
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* update function.
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*
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* @see WP_Widget->update
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*
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* @param array $new_instance
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* @param array $old_instance
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*
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* @return array
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*/
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public function update( $new_instance, $old_instance ) {
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$this->init_settings();
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return parent::update( $new_instance, $old_instance );
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}
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/**
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* form function.
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*
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* @see WP_Widget->form
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*
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* @param array $instance
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*/
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public function form( $instance ) {
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$this->init_settings();
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parent::form( $instance );
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}
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/**
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* Init settings after post types are registered
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*/
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public function init_settings() {
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$attribute_array = array();
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$attribute_taxonomies = wc_get_attribute_taxonomies();
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if ( $attribute_taxonomies ) {
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foreach ( $attribute_taxonomies as $tax ) {
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if ( taxonomy_exists( wc_attribute_taxonomy_name( $tax->attribute_name ) ) ) {
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$attribute_array[ $tax->attribute_name ] = $tax->attribute_name;
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}
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}
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}
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$this->settings = array(
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'title' => array(
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'type' => 'text',
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'std' => __( 'Filter by', 'woocommerce' ),
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'label' => __( 'Title', 'woocommerce' )
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),
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'attribute' => array(
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'type' => 'select',
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'std' => '',
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'label' => __( 'Attribute', 'woocommerce' ),
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'options' => $attribute_array
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),
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'display_type' => array(
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'type' => 'select',
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'std' => 'list',
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'label' => __( 'Display type', 'woocommerce' ),
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'options' => array(
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'list' => __( 'List', 'woocommerce' ),
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'dropdown' => __( 'Dropdown', 'woocommerce' )
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)
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),
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'query_type' => array(
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'type' => 'select',
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'std' => 'and',
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'label' => __( 'Query type', 'woocommerce' ),
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'options' => array(
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'and' => __( 'AND', 'woocommerce' ),
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'or' => __( 'OR', 'woocommerce' )
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)
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),
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);
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}
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/**
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* widget function.
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*
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* @see WP_Widget
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*
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* @param array $args
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* @param array $instance
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*/
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public function widget( $args, $instance ) {
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global $_chosen_attributes;
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if ( ! is_post_type_archive( 'product' ) && ! is_tax( get_object_taxonomies( 'product' ) ) ) {
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return;
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}
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$current_term = is_tax() ? get_queried_object()->term_id : '';
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$current_tax = is_tax() ? get_queried_object()->taxonomy : '';
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$taxonomy = isset( $instance['attribute'] ) ? wc_attribute_taxonomy_name( $instance['attribute'] ) : $this->settings['attribute']['std'];
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$query_type = isset( $instance['query_type'] ) ? $instance['query_type'] : $this->settings['query_type']['std'];
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$display_type = isset( $instance['display_type'] ) ? $instance['display_type'] : $this->settings['display_type']['std'];
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if ( ! taxonomy_exists( $taxonomy ) ) {
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return;
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}
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$get_terms_args = array( 'hide_empty' => '1' );
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$orderby = wc_attribute_orderby( $taxonomy );
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switch ( $orderby ) {
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case 'name' :
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$get_terms_args['orderby'] = 'name';
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$get_terms_args['menu_order'] = false;
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break;
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case 'id' :
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$get_terms_args['orderby'] = 'id';
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$get_terms_args['order'] = 'ASC';
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$get_terms_args['menu_order'] = false;
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break;
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case 'menu_order' :
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$get_terms_args['menu_order'] = 'ASC';
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break;
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}
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$terms = get_terms( $taxonomy, $get_terms_args );
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if ( 0 < count( $terms ) ) {
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ob_start();
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$found = false;
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$this->widget_start( $args, $instance );
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// Force found when option is selected - do not force found on taxonomy attributes
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if ( ! is_tax() && is_array( $_chosen_attributes ) && array_key_exists( $taxonomy, $_chosen_attributes ) ) {
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$found = true;
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}
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if ( 'dropdown' == $display_type ) {
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// skip when viewing the taxonomy
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if ( $current_tax && $taxonomy == $current_tax ) {
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$found = false;
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} else {
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$taxonomy_filter = str_replace( 'pa_', '', $taxonomy );
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$found = false;
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echo '<select class="dropdown_layered_nav_' . $taxonomy_filter . '">';
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echo '<option value="">' . sprintf( __( 'Any %s', 'woocommerce' ), wc_attribute_label( $taxonomy ) ) . '</option>';
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foreach ( $terms as $term ) {
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// If on a term page, skip that term in widget list
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if ( $term->term_id == $current_term ) {
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continue;
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}
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// Get count based on current view - uses transients
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$transient_name = 'wc_ln_count_' . md5( sanitize_key( $taxonomy ) . sanitize_key( $term->term_taxonomy_id ) );
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if ( false === ( $_products_in_term = get_transient( $transient_name ) ) ) {
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$_products_in_term = get_objects_in_term( $term->term_id, $taxonomy );
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set_transient( $transient_name, $_products_in_term, DAY_IN_SECONDS * 30 );
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}
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$option_is_set = ( isset( $_chosen_attributes[ $taxonomy ] ) && in_array( $term->term_id, $_chosen_attributes[ $taxonomy ]['terms'] ) );
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// If this is an AND query, only show options with count > 0
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if ( 'and' == $query_type ) {
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$count = sizeof( array_intersect( $_products_in_term, WC()->query->filtered_product_ids ) );
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if ( 0 < $count ) {
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$found = true;
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}
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if ( 0 == $count && ! $option_is_set ) {
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continue;
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}
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// If this is an OR query, show all options so search can be expanded
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} else {
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$count = sizeof( array_intersect( $_products_in_term, WC()->query->unfiltered_product_ids ) );
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if ( 0 < $count ) {
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$found = true;
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}
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}
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echo '<option value="' . esc_attr( $term->term_id ) . '" ' . selected( isset( $_GET[ 'filter_' . $taxonomy_filter ] ) ? $_GET[ 'filter_' . $taxonomy_filter ] : '' , $term->term_id, false ) . '>' . esc_html( $term->name ) . '</option>';
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}
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echo '</select>';
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wc_enqueue_js( "
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jQuery( '.dropdown_layered_nav_$taxonomy_filter' ).change( function() {
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var term_id = parseInt( jQuery( this ).val(), 10 );
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location.href = '" . preg_replace( '%\/page\/[0-9]+%', '', str_replace( array( '&', '%2C' ), array( '&', ',' ), esc_js( add_query_arg( 'filtering', '1', remove_query_arg( array( 'page', 'filter_' . $taxonomy_filter ) ) ) ) ) ) . "&filter_$taxonomy_filter=' + ( isNaN( term_id ) ? '' : term_id );
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});
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" );
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}
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} else {
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// List display
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echo '<ul>';
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foreach ( $terms as $term ) {
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// Get count based on current view - uses transients
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$transient_name = 'wc_ln_count_' . md5( sanitize_key( $taxonomy ) . sanitize_key( $term->term_taxonomy_id ) );
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if ( false === ( $_products_in_term = get_transient( $transient_name ) ) ) {
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$_products_in_term = get_objects_in_term( $term->term_id, $taxonomy );
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set_transient( $transient_name, $_products_in_term );
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}
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$option_is_set = ( isset( $_chosen_attributes[ $taxonomy ] ) && in_array( $term->term_id, $_chosen_attributes[ $taxonomy ]['terms'] ) );
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// skip the term for the current archive
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if ( $current_term == $term->term_id ) {
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continue;
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}
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// If this is an AND query, only show options with count > 0
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if ( 'and' == $query_type ) {
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$count = sizeof( array_intersect( $_products_in_term, WC()->query->filtered_product_ids ) );
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if ( 0 < $count && $current_term !== $term->term_id ) {
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$found = true;
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}
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if ( 0 == $count && ! $option_is_set ) {
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continue;
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}
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// If this is an OR query, show all options so search can be expanded
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} else {
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$count = sizeof( array_intersect( $_products_in_term, WC()->query->unfiltered_product_ids ) );
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if ( 0 < $count ) {
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$found = true;
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}
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}
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$arg = 'filter_' . sanitize_title( $instance['attribute'] );
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$current_filter = ( isset( $_GET[ $arg ] ) ) ? explode( ',', $_GET[ $arg ] ) : array();
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if ( ! is_array( $current_filter ) ) {
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$current_filter = array();
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}
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$current_filter = array_map( 'esc_attr', $current_filter );
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if ( ! in_array( $term->term_id, $current_filter ) ) {
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$current_filter[] = $term->term_id;
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}
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// Base Link decided by current page
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if ( defined( 'SHOP_IS_ON_FRONT' ) ) {
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$link = home_url();
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} elseif ( is_post_type_archive( 'product' ) || is_page( wc_get_page_id('shop') ) ) {
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$link = get_post_type_archive_link( 'product' );
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} else {
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$link = get_term_link( get_query_var('term'), get_query_var('taxonomy') );
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}
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// All current filters
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if ( $_chosen_attributes ) {
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foreach ( $_chosen_attributes as $name => $data ) {
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if ( $name !== $taxonomy ) {
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// Exclude query arg for current term archive term
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while ( in_array( $current_term, $data['terms'] ) ) {
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$key = array_search( $current_term, $data );
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unset( $data['terms'][$key] );
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}
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// Remove pa_ and sanitize
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$filter_name = sanitize_title( str_replace( 'pa_', '', $name ) );
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if ( ! empty( $data['terms'] ) ) {
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$link = add_query_arg( 'filter_' . $filter_name, implode( ',', $data['terms'] ), $link );
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}
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if ( 'or' == $data['query_type'] ) {
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$link = add_query_arg( 'query_type_' . $filter_name, 'or', $link );
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}
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}
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}
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}
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// Min/Max
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if ( isset( $_GET['min_price'] ) ) {
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$link = add_query_arg( 'min_price', $_GET['min_price'], $link );
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}
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if ( isset( $_GET['max_price'] ) ) {
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$link = add_query_arg( 'max_price', $_GET['max_price'], $link );
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}
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// Orderby
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if ( isset( $_GET['orderby'] ) ) {
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$link = add_query_arg( 'orderby', $_GET['orderby'], $link );
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}
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// Current Filter = this widget
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if ( isset( $_chosen_attributes[ $taxonomy ] ) && is_array( $_chosen_attributes[ $taxonomy ]['terms'] ) && in_array( $term->term_id, $_chosen_attributes[ $taxonomy ]['terms'] ) ) {
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$class = 'class="chosen"';
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// Remove this term is $current_filter has more than 1 term filtered
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if ( sizeof( $current_filter ) > 1 ) {
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$current_filter_without_this = array_diff( $current_filter, array( $term->term_id ) );
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$link = add_query_arg( $arg, implode( ',', $current_filter_without_this ), $link );
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}
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} else {
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$class = '';
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$link = add_query_arg( $arg, implode( ',', $current_filter ), $link );
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}
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// Search Arg
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if ( get_search_query() ) {
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$link = add_query_arg( 's', get_search_query(), $link );
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}
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// Post Type Arg
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if ( isset( $_GET['post_type'] ) ) {
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$link = add_query_arg( 'post_type', $_GET['post_type'], $link );
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}
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// Query type Arg
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if ( $query_type == 'or' && ! ( sizeof( $current_filter ) == 1 && isset( $_chosen_attributes[ $taxonomy ]['terms'] ) && is_array( $_chosen_attributes[ $taxonomy ]['terms'] ) && in_array( $term->term_id, $_chosen_attributes[ $taxonomy ]['terms'] ) ) ) {
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$link = add_query_arg( 'query_type_' . sanitize_title( $instance['attribute'] ), 'or', $link );
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}
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echo '<li ' . $class . '>';
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echo ( $count > 0 || $option_is_set ) ? '<a href="' . esc_url( apply_filters( 'woocommerce_layered_nav_link', $link ) ) . '">' : '<span>';
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echo $term->name;
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echo ( $count > 0 || $option_is_set ) ? '</a>' : '</span>';
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echo ' <span class="count">(' . $count . ')</span></li>';
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}
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echo '</ul>';
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} // End display type conditional
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$this->widget_end( $args );
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if ( ! $found ) {
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ob_end_clean();
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} else {
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echo ob_get_clean();
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}
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}
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}
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}
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