function __construct()
{
register_activation_hook(__FILE__, array(__CLASS__, 'br_add_defaults'));
register_uninstall_hook(__FILE__, array(__CLASS__, 'br_delete_plugin_options'));
if (in_array('woocommerce/woocommerce.php', apply_filters('active_plugins', get_option('active_plugins'))) && br_get_woocommerce_version() >= 2.1) {
add_action('admin_menu', array(__CLASS__, 'br_add_options_page'));
add_action('admin_init', array(__CLASS__, 'register_br_options'));
add_action('init', array(__CLASS__, 'init'));
add_shortcode('br_filters', array(__CLASS__, 'shortcode'));
add_filter('loop_shop_per_page', array(__CLASS__, 'loop_shop_per_page'), 99);
if (@$_GET['filters'] and !@defined('DOING_AJAX')) {
add_filter('pre_get_posts', array(__CLASS__, 'apply_user_filters'));
}
if ($_GET['explode'] == 'explode') {
add_action('woocommerce_before_template_part', array('BeRocket_AAPF_Widget', 'pre_get_posts'), 999999);
add_action('wp_footer', array('BeRocket_AAPF_Widget', 'end_clean'), 999999);
add_action('init', array('BeRocket_AAPF_Widget', 'start_clean'), 1);
}
} else {
if (in_array('woocommerce/woocommerce.php', apply_filters('active_plugins', get_option('active_plugins')))) {
add_action('admin_notices', array(__CLASS__, 'update_woocommerce '));
} else {
add_action('admin_notices', array(__CLASS__, 'no_woocommerce'));
}
}
}
<?php
define('BEROCKETAAPF', 'BeRocket_AAPF_Widget');
/* Widget */
function BeRocket_AAPF_load_widgets()
{
register_widget('BeRocket_AAPF_widget');
}
require_once dirname(__FILE__) . '/functions.php';
if (in_array('woocommerce/woocommerce.php', apply_filters('active_plugins', get_option('active_plugins'))) && br_get_woocommerce_version() >= 2.1) {
add_action('widgets_init', 'BeRocket_AAPF_load_widgets');
add_action('wp_ajax_nopriv_berocket_aapf_listener', array('BeRocket_AAPF_Widget', 'listener'));
add_action('wp_ajax_berocket_aapf_listener', array('BeRocket_AAPF_Widget', 'listener'));
}
/**
* BeRocket_AAPF_Widget - main filter widget. One filter for any needs
*/
class BeRocket_AAPF_Widget extends WP_Widget
{
/**
* Constructor
*/
function BeRocket_AAPF_Widget()
{
/* Widget settings. */
$widget_ops = array('classname' => 'widget_berocket_aapf', 'description' => __('Add Filters to Products page', BeRocket_AJAX_domain));
/* Widget control settings. */
$control_ops = array('id_base' => 'berocket_aapf_widget');
/* Create the widget. */
if (strcmp($wp_version, '4.3') < 0) {
$this->WP_Widget('berocket_aapf_widget', __('AJAX Product Filters', BeRocket_AJAX_domain), $widget_ops, $control_ops);
