Merge pull request #32777 from woocommerce/add/track_mini_cart_block

Add Mini Cart Block Tracking

plugins/woocommerce/changelog/add-track_mini_cart_block

@@ -0,0 +1,4 @@
+Significance: patch
+Type: add
+
+Adds usage data for the Mini Cart Block to the WC Tracker snapshot.

plugins/woocommerce/includes/class-wc-tracker.php

@@ -11,6 +11,7 @@
  */
 
 use Automattic\Jetpack\Constants;
+use Automattic\WooCommerce\Internal\Utilities\BlocksUtil;
 
 defined( 'ABSPATH' ) || exit;
 
@@ -166,6 +167,9 @@ class WC_Tracker {
 		// Cart & checkout tech (blocks or shortcodes).
 		$data['cart_checkout'] = self::get_cart_checkout_info();
 
+		// Mini Cart block.
+		$data['mini_cart_block'] = self::get_mini_cart_info();
+
 		// WooCommerce Admin info.
 		$data['wc_admin_disabled'] = apply_filters( 'woocommerce_admin_disabled', false ) ? 'yes' : 'no';
 
@@ -776,6 +780,20 @@ class WC_Tracker {
 		);
 	}
 
+	/**
+	 * Get info about the Mini Cart Block.
+	 *
+	 * @return array
+	 */
+	private static function get_mini_cart_info() {
+		$mini_cart_block_name = 'woocommerce/mini-cart';
+		$mini_cart_block_data = wc_current_theme_is_fse_theme() ? BlocksUtil::get_block_from_template_part( $mini_cart_block_name, 'header' ) : BlocksUtil::get_blocks_from_widget_area( $mini_cart_block_name );
+		return array(
+			'mini_cart_used'             => empty( $mini_cart_block_data[0] ) ? 'No' : 'Yes',
+			'mini_cart_block_attributes' => empty( $mini_cart_block_data[0] ) ? array() : $mini_cart_block_data[0]['attrs'],
+		);
+	}
+
 	/**
 	 * Get info about WooCommerce Mobile App usage
 	 *

plugins/woocommerce/src/Internal/Utilities/BlocksUtil.php

@@ -0,0 +1,75 @@
+<?php
+
+namespace Automattic\WooCommerce\Internal\Utilities;
+
+/**
+ * Helper functions for working with blocks.
+ */
+class BlocksUtil {
+
+	/**
+	 * Return blocks with their inner blocks flattened.
+	 *
+	 * @param array $blocks Array of blocks as returned by parse_blocks().
+	 * @return array All blocks.
+	 */
+	public static function flatten_blocks( $blocks ) {
+		return array_reduce(
+			$blocks,
+			function( $carry, $block ) {
+				array_push( $carry, array_diff_key( $block, array_flip( array( 'innerBlocks' ) ) ) );
+				if ( isset( $block['innerBlocks'] ) ) {
+					$inner_blocks = self::flatten_blocks( $block['innerBlocks'] );
+					return array_merge( $carry, $inner_blocks );
+				}
+
+				return $carry;
+			},
+			array()
+		);
+	}
+
+	/**
+	 * Get all instances of the specified block from the widget area.
+	 *
+	 * @param array $block_name The name (id) of a block, e.g. `woocommerce/mini-cart`.
+	 * @return array Array of blocks as returned by parse_blocks().
+	 */
+	public static function get_blocks_from_widget_area( $block_name ) {
+		return array_reduce(
+			get_option( 'widget_block' ),
+			function ( $acc, $block ) use ( $block_name ) {
+				$parsed_blocks = ! empty( $block ) && is_array( $block ) ? parse_blocks( $block['content'] ) : array();
+				if ( ! empty( $parsed_blocks ) && $block_name === $parsed_blocks[0]['blockName'] ) {
+					array_push( $acc, $parsed_blocks[0] );
+					return $acc;
+				}
+				return $acc;
+			},
+			array()
+		);
+	}
+
+	/**
+	 * Get all instances of the specified block on a specific template part.
+	 *
+	 * @param string $block_name The name (id) of a block, e.g. `woocommerce/mini-cart`.
+	 * @param string $template_part_slug The woo page to search, e.g. `header`.
+	 * @return array Array of blocks as returned by parse_blocks().
+	 */
+	public static function get_block_from_template_part( $block_name, $template_part_slug ) {
+		$template = get_block_template( get_stylesheet() . '//' . $template_part_slug, 'wp_template_part' );
+		$blocks   = parse_blocks( $template->content );
+
+		$flatten_blocks = self::flatten_blocks( $blocks );
+
+		return array_values(
+			array_filter(
+				$flatten_blocks,
+				function ( $block ) use ( $block_name ) {
+					return ( $block_name === $block['blockName'] );
+				}
+			)
+		);
+	}
+}