<?php
/**
* Nosara Tracks for WooCommerce
*
* @package WooCommerce\Tracks
*/
defined( 'ABSPATH' ) || exit;
/**
* This class adds actions to track usage of WooCommerce.
*/
class WC_Site_Tracking {
/**
* Check if tracking is enabled.
*
* @return bool
*/
public static function is_tracking_enabled() {
/**
* Don't track users if a filter has been applied to turn it off.
* `woocommerce_apply_tracking` will be deprecated. Please use
* `woocommerce_apply_user_tracking` instead.
*/
if ( ! apply_filters( 'woocommerce_apply_user_tracking', true ) || ! apply_filters( 'woocommerce_apply_tracking', true ) ) {
return false;
}
// Check if tracking is actively being opted into.
$is_obw_opting_in = isset( $_POST['wc_tracker_checkbox'] ) && 'yes' === sanitize_text_field( $_POST['wc_tracker_checkbox'] ); // phpcs:ignore WordPress.Security.NonceVerification.Missing, WordPress.Security.ValidatedSanitizedInput
/**
* Don't track users who haven't opted-in to tracking or aren't in
* the process of opting-in.
*/
if ( 'yes' !== get_option( 'woocommerce_allow_tracking' ) && ! $is_obw_opting_in ) {
return false;
}
if ( ! class_exists( 'WC_Tracks' ) ) {
return false;
}
return true;
}
/**
* Register scripts required to record events from javascript.
*/
public static function register_scripts() {
wp_register_script( 'woo-tracks', 'https://stats.wp.com/w.js', array( 'wp-hooks' ), gmdate( 'YW' ), false );
}
/**
* Add scripts required to record events from javascript.
*/
public static function enqueue_scripts() {
wp_enqueue_script( 'woo-tracks' );
}
/**
* Adds the tracking function to the admin footer.
*/
public static function add_tracking_function() {
?>
<!-- WooCommerce Tracks -->
<script type="text/javascript">
window.wcTracks = window.wcTracks || {};
window.wcTracks.isEnabled = <?php echo self::is_tracking_enabled() ? 'true' : 'false'; ?>;
window.wcTracks.recordEvent = function( name, properties ) {
if ( ! window.wcTracks.isEnabled ) {
return;
}
var eventName = '<?php echo esc_attr( WC_Tracks::PREFIX ); ?>' + name;
var eventProperties = properties || {};
eventProperties.url = '<?php echo esc_html( home_url() ); ?>'
eventProperties.products_count = '<?php echo intval( WC_Tracks::get_products_count() ); ?>';
if ( window.wp && window.wp.hooks && window.wp.hooks.applyFilters ) {
eventProperties = window.wp.hooks.applyFilters( 'woocommerce_tracks_client_event_properties', eventProperties, eventName );
delete( eventProperties._ui );
delete( eventProperties._ut );
}
window._tkq = window._tkq || [];
window._tkq.push( [ 'recordEvent', eventName, eventProperties ] );
}
</script>
<?php
}
/**
* Adds a function to load tracking scripts and enable them client-side on the fly.
* Note that this function does not update `woocommerce_allow_tracking` in the database
* and will not persist enabled tracking across page loads.
*/
public static function add_enable_tracking_function() {
global $wp_scripts;
if ( ! isset( $wp_scripts->registered['woo-tracks'] ) ) {
return;
}
$woo_tracks_script = $wp_scripts->registered['woo-tracks']->src;
?>
<script type="text/javascript">
window.wcTracks.enable = function( callback ) {
window.wcTracks.isEnabled = true;
var scriptUrl = '<?php echo esc_url( $woo_tracks_script ); ?>';
var existingScript = document.querySelector( `script[src="${ scriptUrl }"]` );
if ( existingScript ) {
return;
}
var script = document.createElement('script');
script.src = scriptUrl;
document.body.append(script);
// Callback after scripts have loaded.
script.onload = function() {
if ( 'function' === typeof callback ) {
callback( true );
}
}
// Callback triggered if the script fails to load.
script.onerror = function() {
if ( 'function' === typeof callback ) {
callback( false );
}
}
}
</script>
<?php
}
/**
* Init tracking.
*/
public static function init() {
// Define window.wcTracks.recordEvent in case it is enabled client-side.
self::register_scripts();
add_filter( 'admin_footer', array( __CLASS__, 'add_tracking_function' ), 24 );
if ( ! self::is_tracking_enabled() ) {
add_filter( 'admin_footer', array( __CLASS__, 'add_enable_tracking_function' ), 24 );
return;
}
self::enqueue_scripts();
include_once WC_ABSPATH . 'includes/tracks/events/class-wc-admin-setup-wizard-tracking.php';
include_once WC_ABSPATH . 'includes/tracks/events/class-wc-extensions-tracking.php';
include_once WC_ABSPATH . 'includes/tracks/events/class-wc-importer-tracking.php';
include_once WC_ABSPATH . 'includes/tracks/events/class-wc-products-tracking.php';
include_once WC_ABSPATH . 'includes/tracks/events/class-wc-orders-tracking.php';
include_once WC_ABSPATH . 'includes/tracks/events/class-wc-settings-tracking.php';
include_once WC_ABSPATH . 'includes/tracks/events/class-wc-status-tracking.php';
include_once WC_ABSPATH . 'includes/tracks/events/class-wc-coupons-tracking.php';
include_once WC_ABSPATH . 'includes/tracks/events/class-wc-order-tracking.php';
include_once WC_ABSPATH . 'includes/tracks/events/class-wc-coupon-tracking.php';
$tracking_classes = array(
'WC_Extensions_Tracking',
'WC_Importer_Tracking',
'WC_Products_Tracking',
'WC_Orders_Tracking',
'WC_Settings_Tracking',
'WC_Status_Tracking',
'WC_Coupons_Tracking',
'WC_Order_Tracking',
'WC_Coupon_Tracking',
);
foreach ( $tracking_classes as $tracking_class ) {
$tracker_instance = new $tracking_class();
$tracker_init_method = array( $tracker_instance, 'init' );
if ( is_callable( $tracker_init_method ) ) {
call_user_func( $tracker_init_method );
}
}
}
}