/**
* Output widget.
*
* @see WP_Widget
*
* @param array $args
* @param array $instance
*/
public function widget($args, $instance)
{
global $_chosen_attributes;
if (!is_post_type_archive('product') && !is_tax(get_object_taxonomies('product'))) {
return;
}
$current_term = is_tax() ? get_queried_object()->term_id : '';
$current_tax = is_tax() ? get_queried_object()->taxonomy : '';
$taxonomy = isset($instance['attribute']) ? wc_attribute_taxonomy_name($instance['attribute']) : $this->settings['attribute']['std'];
$query_type = isset($instance['query_type']) ? $instance['query_type'] : $this->settings['query_type']['std'];
$display_type = isset($instance['display_type']) ? $instance['display_type'] : $this->settings['display_type']['std'];
if (!taxonomy_exists($taxonomy)) {
return;
}
$get_terms_args = array('hide_empty' => '1');
$orderby = wc_attribute_orderby($taxonomy);
switch ($orderby) {
case 'name':
$get_terms_args['orderby'] = 'name';
$get_terms_args['menu_order'] = false;
break;
case 'id':
$get_terms_args['orderby'] = 'id';
$get_terms_args['order'] = 'ASC';
$get_terms_args['menu_order'] = false;
break;
case 'menu_order':
$get_terms_args['menu_order'] = 'ASC';
break;
}
$terms = get_terms($taxonomy, $get_terms_args);
if (0 < count($terms)) {
ob_start();
$found = false;
$this->widget_start($args, $instance);
// Force found when option is selected - do not force found on taxonomy attributes
if (!is_tax() && is_array($_chosen_attributes) && array_key_exists($taxonomy, $_chosen_attributes)) {
$found = true;
}
if ('dropdown' == $display_type) {
// skip when viewing the taxonomy
if ($current_tax && $taxonomy == $current_tax) {
$found = false;
} else {
$taxonomy_filter = str_replace('pa_', '', $taxonomy);
$found = false;
echo '<select class="dropdown_layered_nav_' . $taxonomy_filter . '">';
echo '<option value="">' . sprintf(__('Any %s', 'woocommerce'), wc_attribute_label($taxonomy)) . '</option>';
foreach ($terms as $term) {
// If on a term page, skip that term in widget list
if ($term->term_id == $current_term) {
continue;
}
// Get count based on current view
$_products_in_term = wc_get_term_product_ids($term->term_id, $taxonomy);
$option_is_set = isset($_chosen_attributes[$taxonomy]) && in_array($term->term_id, $_chosen_attributes[$taxonomy]['terms']);
// If this is an AND query, only show options with count > 0
if ('and' == $query_type) {
$count = sizeof(array_intersect($_products_in_term, WC()->query->filtered_product_ids));
if (0 < $count) {
$found = true;
}
if (0 == $count && !$option_is_set) {
continue;
}
// If this is an OR query, show all options so search can be expanded
} else {
$count = sizeof(array_intersect($_products_in_term, WC()->query->unfiltered_product_ids));
if (0 < $count) {
$found = true;
}
}
echo '<option value="' . esc_attr($term->term_id) . '" ' . selected(isset($_GET['filter_' . $taxonomy_filter]) ? $_GET['filter_' . $taxonomy_filter] : '', $term->term_id, false) . '>' . esc_html($term->name) . '</option>';
}
echo '</select>';
wc_enqueue_js("\n\t\t\t\t\t\tjQuery( '.dropdown_layered_nav_{$taxonomy_filter}' ).change( function() {\n\t\t\t\t\t\t\tvar term_id = parseInt( jQuery( this ).val(), 10 );\n\t\t\t\t\t\t\tlocation.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 );\n\t\t\t\t\t\t});\n\t\t\t\t\t");
}
} else {
// List display
echo '<ul>';
// flip the filtered_products_ids array so that we can use the more efficient array_intersect_key
$filtered_product_ids = array_flip(WC()->query->filtered_product_ids);
foreach ($terms as $term) {
// Get count based on current view - uses transients
$_products_in_term = wc_get_term_product_ids($term->term_id, $taxonomy);
$option_is_set = isset($_chosen_attributes[$taxonomy]) && in_array($term->term_id, $_chosen_attributes[$taxonomy]['terms']);
// skip the term for the current archive
if ($current_term == $term->term_id) {
continue;
}
// If this is an AND query, only show options with count > 0
if ('and' == $query_type) {
// flip the product_in_term array so that we can use array_intersect_key
$_products_in_term = array_flip($_products_in_term);
// Intersect both arrays now they have been flipped so that we can use their keys
$count = sizeof(array_intersect_key($_products_in_term, $filtered_product_ids));
if (0 < $count && $current_term !== $term->term_id) {
$found = true;
}
if (0 == $count && !$option_is_set) {
continue;
}
// If this is an OR query, show all options so search can be expanded
} else {
$count = sizeof(array_intersect($_products_in_term, WC()->query->unfiltered_product_ids));
if (0 < $count) {
$found = true;
}
}
$arg = 'filter_' . sanitize_title($instance['attribute']);
$current_filter = isset($_GET[$arg]) ? explode(',', $_GET[$arg]) : array();
if (!is_array($current_filter)) {
$current_filter = array();
}
$current_filter = array_map('esc_attr', $current_filter);
if (!in_array($term->term_id, $current_filter)) {
$current_filter[] = $term->term_id;
}
// Base Link decided by current page
if (defined('SHOP_IS_ON_FRONT')) {
$link = home_url();
} elseif (is_post_type_archive('product') || is_page(wc_get_page_id('shop'))) {
$link = get_post_type_archive_link('product');
} else {
$link = get_term_link(get_query_var('term'), get_query_var('taxonomy'));
}
// All current filters
if ($_chosen_attributes) {
foreach ($_chosen_attributes as $name => $data) {
if ($name !== $taxonomy) {
// Exclude query arg for current term archive term
while (in_array($current_term, $data['terms'])) {
$key = array_search($current_term, $data);
unset($data['terms'][$key]);
}
// Remove pa_ and sanitize
$filter_name = sanitize_title(str_replace('pa_', '', $name));
if (!empty($data['terms'])) {
$link = add_query_arg('filter_' . $filter_name, implode(',', $data['terms']), $link);
}
if ('or' == $data['query_type']) {
$link = add_query_arg('query_type_' . $filter_name, 'or', $link);
}
}
}
}
// Min/Max
if (isset($_GET['min_price'])) {
$link = add_query_arg('min_price', $_GET['min_price'], $link);
}
if (isset($_GET['max_price'])) {
$link = add_query_arg('max_price', $_GET['max_price'], $link);
}
// Orderby
if (isset($_GET['orderby'])) {
$link = add_query_arg('orderby', $_GET['orderby'], $link);
}
// Current Filter = this widget
if (isset($_chosen_attributes[$taxonomy]) && is_array($_chosen_attributes[$taxonomy]['terms']) && in_array($term->term_id, $_chosen_attributes[$taxonomy]['terms'])) {
$class = 'class="chosen"';
// Remove this term is $current_filter has more than 1 term filtered
if (sizeof($current_filter) > 1) {
$current_filter_without_this = array_diff($current_filter, array($term->term_id));
$link = add_query_arg($arg, implode(',', $current_filter_without_this), $link);
}
} else {
$class = '';
$link = add_query_arg($arg, implode(',', $current_filter), $link);
}
// Search Arg
if (get_search_query()) {
$link = add_query_arg('s', get_search_query(), $link);
}
// Post Type Arg
if (isset($_GET['post_type'])) {
$link = add_query_arg('post_type', $_GET['post_type'], $link);
}
// Query type Arg
if ($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']))) {
$link = add_query_arg('query_type_' . sanitize_title($instance['attribute']), 'or', $link);
}
echo '<li ' . $class . '>';
echo $count > 0 || $option_is_set ? '<a href="' . esc_url(apply_filters('woocommerce_layered_nav_link', $link)) . '">' : '<span>';
echo $term->name;
echo $count > 0 || $option_is_set ? '</a>' : '</span>';
echo ' <span class="count">(' . $count . ')</span></li>';
}
echo '</ul>';
}
// End display type conditional
$this->widget_end($args);
if (!$found) {
ob_end_clean();
} else {
echo ob_get_clean();
}
}
}
/**
* Show list based layered nav.
* @param array $terms
* @param string $taxonomy
* @param string $query_type
* @return bool Will nav display?
*/
protected function layered_nav_list($terms, $taxonomy, $query_type)
{
global $_chosen_attributes;
// List display
echo '<ul>';
// flip the filtered_products_ids array so that we can use the more efficient array_intersect_key
$filtered_product_ids = array_flip(WC()->query->filtered_product_ids);
$unfiltered_product_ids = array_flip(WC()->query->unfiltered_product_ids);
$found = false;
foreach ($terms as $term) {
// Get count based on current view - uses transients
// flip the product_in_term array so that we can use array_intersect_key
$_products_in_term = array_flip(wc_get_term_product_ids($term->term_id, $taxonomy));
$current_values = isset($_chosen_attributes[$taxonomy]['terms']) ? $_chosen_attributes[$taxonomy]['terms'] : array();
$option_is_set = in_array($term->slug, $current_values);
// skip the term for the current archive
if ($this->get_current_term_id() === $term->term_id) {
continue;
}
// If this is an AND query, only show options with count > 0
if ('and' === $query_type) {
// Intersect both arrays now they have been flipped so that we can use their keys
$count = sizeof(array_intersect_key($_products_in_term, $filtered_product_ids));
if (0 < $count) {
$found = true;
}
if (0 === $count && !$option_is_set) {
continue;
}
// If this is an OR query, show all options so search can be expanded
} else {
// Intersect both arrays now they have been flipped so that we can use their keys
$count = sizeof(array_intersect_key($_products_in_term, $unfiltered_product_ids));
if (0 < $count) {
$found = true;
}
}
$filter_name = 'filter_' . sanitize_title(str_replace('pa_', '', $taxonomy));
$current_filter = isset($_GET[$filter_name]) ? explode(',', wc_clean($_GET[$filter_name])) : array();
$current_filter = array_map('sanitize_title', $current_filter);
if (!in_array($term->slug, $current_filter)) {
$current_filter[] = $term->slug;
}
$link = $this->get_page_base_url();
// Add current filters to URL.
foreach ($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)) {
$link = add_query_arg($filter_name, implode(',', $current_filter), $link);
// Add Query type Arg to URL
if ($query_type === 'or' && !(1 === sizeof($current_filter) && $option_is_set)) {
$link = add_query_arg('query_type_' . sanitize_title(str_replace('pa_', '', $taxonomy)), 'or', $link);
}
}
echo '<li class="wc-layered-nav-term ' . ($option_is_set ? 'chosen' : '') . '">';
echo $count > 0 || $option_is_set ? '<a href="' . esc_url(apply_filters('woocommerce_layered_nav_link', $link)) . '">' : '<span>';
echo esc_html($term->name);
echo $count > 0 || $option_is_set ? '</a>' : '</span>';
echo ' <span class="count">(' . absint($count) . ')</span></li>';
}
echo '</ul>';
return $found;
}
