View file File name : CartTemplate.php Content :<?php namespace Automattic\WooCommerce\Blocks\Templates; /** * CartTemplate class. * * @internal */ class CartTemplate extends AbstractPageTemplate { /** * The slug of the template. * * @var string */ const SLUG = 'page-cart'; /** * Initialization method. */ public function init() { add_action( 'template_redirect', array( $this, 'render_block_template' ) ); parent::init(); } /** * Returns the title of the template. * * @return string */ public function get_template_title() { return _x( 'Page: Cart', 'Template name', 'woocommerce' ); } /** * Returns the description of the template. * * @return string */ public function get_template_description() { return __( 'The Cart template displays the items selected by the user for purchase, including quantities, prices, and discounts. It allows users to review their choices before proceeding to checkout.', 'woocommerce' ); } /** * Renders the default block template from Woo Blocks if no theme templates exist. */ public function render_block_template() { if ( ! is_embed() && is_cart() ) { add_filter( 'woocommerce_has_block_template', '__return_true', 10, 0 ); } } /** * Returns the page object assigned to this template/page. * * @return \WP_Post|null Post object or null. */ protected function get_placeholder_page() { $page_id = wc_get_page_id( 'cart' ); return $page_id ? get_post( $page_id ) : null; } /** * True when viewing the cart page or cart endpoint. * * @return boolean */ protected function is_active_template() { global $post; $placeholder = $this->get_placeholder_page(); return null !== $placeholder && $post instanceof \WP_Post && $placeholder->post_name === $post->post_name; } /** * When the page should be displaying the template, add it to the hierarchy. * * This places the template name e.g. `cart`, at the beginning of the template hierarchy array. The hook priority * is 1 to ensure it runs first; other consumers e.g. extensions, could therefore inject their own template instead * of this one when using the default priority of 10. * * @param array $templates Templates that match the pages_template_hierarchy. */ public function page_template_hierarchy( $templates ) { if ( $this->is_active_template() ) { array_unshift( $templates, self::SLUG ); array_unshift( $templates, 'cart' ); } return $templates; } }