Add customer address change action to user profile (#39254)

plugins/woocommerce/changelog/39252-address_hook

@@ -0,0 +1,4 @@
+Significance: minor
+Type: add
+
+Makes it possible to use existing action hook `woocommerce_customer_save_address` to detect customer address changes made via the admin environment.

plugins/woocommerce/includes/admin/class-wc-admin-profile.php

@@ -212,7 +212,7 @@ if ( ! class_exists( 'WC_Admin_Profile', false ) ) :
 
 			$save_fields = $this->get_customer_meta_fields();
 
-			foreach ( $save_fields as $fieldset ) {
+			foreach ( $save_fields as $fieldset_type => $fieldset ) {
 
 				foreach ( $fieldset['fields'] as $key => $field ) {
 
@@ -222,6 +222,25 @@ if ( ! class_exists( 'WC_Admin_Profile', false ) ) :
 						update_user_meta( $user_id, $key, wc_clean( $_POST[ $key ] ) );
 					}
 				}
+
+				// Skip firing the action for any non-internal fieldset types.
+				if ( ! in_array( $fieldset_type, array( 'billing', 'shipping' ), true ) ) {
+					continue;
+				}
+
+				// Fieldset type is an internal address type.
+				$address_type = $fieldset_type;
+
+				/**
+				 * Hook: woocommerce_customer_save_address.
+				 *
+				 * Fires after a customer address has been saved on the user profile admin screen.
+				 *
+				 * @since 8.5.0
+				 * @param int    $user_id User ID being saved.
+				 * @param string $address_type Type of address; 'billing' or 'shipping'.
+				 */
+				do_action( 'woocommerce_customer_save_address', $user_id, $address_type );
 			}
 		}