woocommerce/includes/widgets/class-wc-widget-layered-nav...

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<?php
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
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* Layered Navigation Filters Widget.
*
* @author WooThemes
* @category Widgets
* @package WooCommerce/Widgets
* @version 2.3.0
* @extends WC_Widget
*/
class WC_Widget_Layered_Nav_Filters extends WC_Widget {
/**
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* Constructor.
*/
public function __construct() {
$this->widget_cssclass = 'woocommerce widget_layered_nav_filters';
$this->widget_description = __( 'Shows active layered nav filters so users can see and deactivate them.', 'woocommerce' );
$this->widget_id = 'woocommerce_layered_nav_filters';
$this->widget_name = __( 'WooCommerce layered nav filters', 'woocommerce' );
$this->settings = array(
'title' => array(
'type' => 'text',
'std' => __( 'Active filters', 'woocommerce' ),
'label' => __( 'Title', 'woocommerce' ),
),
);
parent::__construct();
}
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/**
* Get current page URL for layered nav items.
*
* @return string
*/
protected function get_page_base_url() {
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' );
} elseif ( is_product_category() ) {
$link = get_term_link( get_query_var( 'product_cat' ), 'product_cat' );
} elseif ( is_product_tag() ) {
$link = get_term_link( get_query_var( 'product_tag' ), 'product_tag' );
} else {
$queried_object = get_queried_object();
$link = get_term_link( $queried_object->slug, $queried_object->taxonomy );
}
// Min/Max
if ( isset( $_GET['min_price'] ) ) {
$link = add_query_arg( 'min_price', wc_clean( $_GET['min_price'] ), $link );
}
if ( isset( $_GET['max_price'] ) ) {
$link = add_query_arg( 'max_price', wc_clean( $_GET['max_price'] ), $link );
}
// Orderby
if ( isset( $_GET['orderby'] ) ) {
$link = add_query_arg( 'orderby', wc_clean( $_GET['orderby'] ), $link );
}
/**
* Search Arg.
* To support quote characters, first they are decoded from &quot; entities, then URL encoded.
*/
if ( get_search_query() ) {
$link = add_query_arg( 's', rawurlencode( htmlspecialchars_decode( get_search_query() ) ), $link );
}
// Post Type Arg
if ( isset( $_GET['post_type'] ) ) {
$link = add_query_arg( 'post_type', wc_clean( $_GET['post_type'] ), $link );
}
// Min Rating Arg
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if ( isset( $_GET['rating_filter'] ) ) {
$link = add_query_arg( 'rating_filter', wc_clean( $_GET['rating_filter'] ), $link );
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}
// All current filters
if ( $_chosen_attributes = WC_Query::get_layered_nav_chosen_attributes() ) {
foreach ( $_chosen_attributes as $name => $data ) {
$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 );
}
}
}
return $link;
}
/**
* Output widget.
*
* @see WP_Widget
* @param array $args
* @param array $instance
*/
public function widget( $args, $instance ) {
if ( ! is_post_type_archive( 'product' ) && ! is_tax( get_object_taxonomies( 'product' ) ) ) {
return;
}
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$_chosen_attributes = WC_Query::get_layered_nav_chosen_attributes();
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$min_price = isset( $_GET['min_price'] ) ? wc_clean( $_GET['min_price'] ) : 0;
$max_price = isset( $_GET['max_price'] ) ? wc_clean( $_GET['max_price'] ) : 0;
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$rating_filter = isset( $_GET['rating_filter'] ) ? array_filter( array_map( 'absint', explode( ',', $_GET['rating_filter'] ) ) ) : array();
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$base_link = $this->get_page_base_url();
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if ( 0 < count( $_chosen_attributes ) || 0 < $min_price || 0 < $max_price || ! empty( $rating_filter ) ) {
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$this->widget_start( $args, $instance );
echo '<ul>';
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// Attributes
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if ( ! empty( $_chosen_attributes ) ) {
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foreach ( $_chosen_attributes as $taxonomy => $data ) {
foreach ( $data['terms'] as $term_slug ) {
if ( ! $term = get_term_by( 'slug', $term_slug, $taxonomy ) ) {
continue;
}
$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 );
$new_filter = array_diff( $current_filter, array( $term_slug ) );
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$link = remove_query_arg( array( 'add-to-cart', $filter_name ), $base_link );
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if ( sizeof( $new_filter ) > 0 ) {
$link = add_query_arg( $filter_name, implode( ',', $new_filter ), $link );
}
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echo '<li class="chosen"><a aria-label="' . esc_attr__( 'Remove filter', 'woocommerce' ) . '" href="' . esc_url( $link ) . '">' . esc_html( $term->name ) . '</a></li>';
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}
}
}
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if ( $min_price ) {
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$link = remove_query_arg( 'min_price', $base_link );
echo '<li class="chosen"><a aria-label="' . esc_attr__( 'Remove filter', 'woocommerce' ) . '" href="' . esc_url( $link ) . '">' . sprintf( __( 'Min %s', 'woocommerce' ), wc_price( $min_price ) ) . '</a></li>';
}
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if ( $max_price ) {
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$link = remove_query_arg( 'max_price', $base_link );
echo '<li class="chosen"><a aria-label="' . esc_attr__( 'Remove filter', 'woocommerce' ) . '" href="' . esc_url( $link ) . '">' . sprintf( __( 'Max %s', 'woocommerce' ), wc_price( $max_price ) ) . '</a></li>';
}
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if ( ! empty( $rating_filter ) ) {
foreach ( $rating_filter as $rating ) {
$link_ratings = implode( ',', array_diff( $rating_filter, array( $rating ) ) );
$link = $link_ratings ? add_query_arg( 'rating_filter', $link_ratings ) : remove_query_arg( 'rating_filter', $base_link );
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echo '<li class="chosen"><a aria-label="' . esc_attr__( 'Remove filter', 'woocommerce' ) . '" href="' . esc_url( $link ) . '">' . sprintf( esc_html__( 'Rated %s out of 5', 'woocommerce' ), esc_html( $rating ) ) . '</a></li>';
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}
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}
echo '</ul>';
$this->widget_end( $args );
}
}
}