Merged in feature/from-pantheon (pull request #16)

code from pantheon

* code from pantheon

wp/wp-content/plugins/woocommerce/src/Admin/Features/OnboardingTasks/TaskTraits.php

@@ -0,0 +1,47 @@
+<?php
+/**
+ * Task and TaskList Traits
+ */
+
+namespace Automattic\WooCommerce\Admin\Features\OnboardingTasks;
+
+defined( 'ABSPATH' ) || exit;
+
+/**
+ * TaskTraits class.
+ */
+trait TaskTraits {
+	/**
+	 * Record a tracks event with the prefixed event name.
+	 *
+	 * @param string $event_name Event name.
+	 * @param array  $args Array of tracks arguments.
+	 * @return string Prefixed event name.
+	 */
+	public function record_tracks_event( $event_name, $args = array() ) {
+		if ( ! $this->get_list_id() ) {
+			return;
+		}
+
+		$prefixed_event_name = $this->prefix_event( $event_name );
+
+		wc_admin_record_tracks_event(
+			$prefixed_event_name,
+			$args
+		);
+
+		return $prefixed_event_name;
+	}
+
+	/**
+	 * Get the task list ID.
+	 *
+	 * @return string
+	 */
+	public function get_list_id() {
+		$namespaced_class = get_class( $this );
+		return is_subclass_of( $namespaced_class, 'Automattic\WooCommerce\Admin\Features\OnboardingTasks\Task' )
+			? $this->get_parent_id()
+			: $this->id;
+	}
+}