­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ pixel = new WC_Facebookcommerce_Pixel($pixel_id, $user_info); } /** * Base pixel code to be injected on page head. Because of this, it's better * to echo the return value than using * WC_Facebookcommerce_Utils::wc_enqueue_js() in this case */ public function inject_base_pixel() { echo $this->pixel->pixel_base_code(); } /** * Base pixel noscript to be injected on page body. This is to avoid W3 * validation error. */ public function inject_base_pixel_noscript() { echo $this->pixel->pixel_base_code_noscript(); } /** * Triggers ViewCategory for product category listings */ public function inject_view_category_event() { global $wp_query; $products = array_values(array_map(function($item) { return wc_get_product($item->ID); }, $wp_query->get_posts())); // if any product is a variant, fire the pixel with // content_type: product_group $content_type = 'product'; $product_ids = array(); foreach ($products as $product) { $product_ids = array_merge( $product_ids, WC_Facebookcommerce_Utils::get_fb_content_ids($product)); if ($product->get_type() === 'variable') { $content_type = 'product_group'; } } $categories = WC_Facebookcommerce_Utils::get_product_categories(get_the_ID()); $this->pixel->inject_event( 'ViewCategory', array( 'content_name' => $categories['name'], 'content_category' => $categories['categories'], 'content_ids' => json_encode(array_slice($product_ids, 0, 10)), 'content_type' => $content_type ), 'trackCustom'); } /** * Triggers Search for result pages (deduped) */ public function inject_search_event() { if (!is_admin() && is_search() && get_search_query() !== '') { if ($this->pixel->check_last_event('Search')) { return; } if (WC_Facebookcommerce_Utils::isWoocommerceIntegration()) { $this->actually_inject_search_event(); } else { add_action('wp_head', array($this, 'actually_inject_search_event'), 11); } } } /** * Triggers Search for result pages */ public function actually_inject_search_event() { $this->pixel->inject_event( 'Search', array( 'search_string' => get_search_query() )); } /** * Helper function to iterate through a cart and gather all content ids */ private function get_content_ids_from_cart($cart) { $product_ids = array(); foreach ($cart as $item) { $product_ids = array_merge( $product_ids, WC_Facebookcommerce_Utils::get_fb_content_ids($item['data'])); } return $product_ids; } /** * Triggers ViewContent product pages */ public function inject_view_content_event() { $product = wc_get_product(get_the_ID()); $content_type = 'product'; if (!$product) { return; } // if product is a variant, fire the pixel with content_type: product_group if ($product->get_type() === 'variable') { $content_type = 'product_group'; } $content_ids = WC_Facebookcommerce_Utils::get_fb_content_ids($product); $this->pixel->inject_event( 'ViewContent', array( 'content_name' => $product->get_title(), 'content_ids' => json_encode($content_ids), 'content_type' => $content_type, 'value' => $product->get_price(), 'currency' => get_woocommerce_currency() )); } /** * Triggers AddToCart for cart page and add_to_cart button clicks */ public function inject_add_to_cart_event() { $product_ids = $this->get_content_ids_from_cart(WC()->cart->get_cart()); $this->pixel->inject_event( 'AddToCart', array( 'content_ids' => json_encode($product_ids), 'content_type' => 'product', 'value' => WC()->cart->total, 'currency' => get_woocommerce_currency() )); } /** * Triggers InitiateCheckout for checkout page */ public function inject_initiate_checkout_event() { $product_ids = $this->get_content_ids_from_cart(WC()->cart->get_cart()); $this->pixel->inject_event( 'InitiateCheckout', array( 'num_items' => WC()->cart->get_cart_contents_count(), 'content_ids' => json_encode($product_ids), 'content_type' => 'product', 'value' => WC()->cart->total, 'currency' => get_woocommerce_currency() )); } /** * Triggers Purchase for thank you page */ public function inject_purchase_event($order_id) { $order = new WC_Order($order_id); $content_type = 'product'; $product_ids = array(); foreach ($order->get_items() as $item) { $product = wc_get_product($item['product_id']); $product_ids = array_merge( $product_ids, WC_Facebookcommerce_Utils::get_fb_content_ids($product)); if ($product->get_type() === 'variable') { $content_type = 'product_group'; } } $this->pixel->inject_event( 'Purchase', array( 'content_ids' => json_encode($product_ids), 'content_type' => $content_type, 'value' => $order->get_total(), 'currency' => get_woocommerce_currency() )); } } endif;