Add gravity flow demo

backend/wordpress/wp-content/plugins/gravityflow-master/includes/assignees/class-assignees.php

@@ -0,0 +1,113 @@
+<?php
+
+/**
+ * Gravity Flow Assignees
+ *
+ * @package     GravityFlow
+ * @copyright   Copyright (c) 2015-2018, Steven Henty S.L.
+ * @license     http://opensource.org/licenses/gpl-2.0.php GNU Public License
+ */
+
+if ( ! class_exists( 'GFForms' ) ) {
+	die();
+}
+
+/**
+ * Class Gravity_Flow_Assignees
+ *
+ * @since 2.1
+ */
+class Gravity_Flow_Assignees {
+	/**
+	 * The assignee class names.
+	 *
+	 * @since 2.1
+	 *
+	 * @var Gravity_Flow_Assignee[]
+	 */
+	private static $class_names = array();
+
+	/**
+	 * Get an array of registered assignee class names.
+	 *
+	 * @return string[]
+	 */
+	private static function get_class_names() {
+		return self::$class_names;
+	}
+
+	/**
+	 * Register the supplied assignee.
+	 *
+	 * @since 2.1
+	 *
+	 * @param Gravity_Flow_Assignee $assignee An example instance of the assignee class.
+	 *
+	 * @throws Exception When the assignee name property has not been set.
+	 */
+	public static function register( $assignee ) {
+
+		if ( ! is_subclass_of( $assignee, 'Gravity_Flow_Assignee' ) ) {
+			throw new Exception( 'Must be a subclass of Gravity_Flow_Assignee' );
+		}
+
+		$name = $assignee->name;
+
+		if ( empty( $name ) ) {
+			throw new Exception( 'The name property must be set' );
+		}
+
+		self::$class_names[ $assignee->name ] = get_class( $assignee );
+	}
+
+	/**
+	 * Create the Assignee class, if available.
+	 *
+	 * @since 2.1
+	 *
+	 * @param null|array $args The arguments used to initialize the class.
+	 * @param Gravity_Flow_Step $step The step.
+	 *
+	 * @return Gravity_Flow_Assignee|false
+	 */
+	public static function create( $args, $step = null ) {
+
+		$type = false;
+		if ( is_string( $args ) ) {
+			$parts = explode( '|', $args );
+			$type  = $parts[0];
+		} elseif ( is_array( $args ) ) {
+			$type = rgar( $args, 'type' );
+		}
+
+		if ( ! $type ) {
+			return false;
+		}
+
+		$classes = self::get_class_names();
+
+		if ( isset( $classes[ $type ] ) ) {
+			$class_name = $classes[ $type ];
+			$assignee   = new $class_name( $args, $step );
+		} else {
+			$assignee = new Gravity_Flow_Assignee( $args, $step );
+		}
+		return $assignee;
+	}
+
+	/**
+	 * Returns an array of the name properties of each assignee class.
+	 *
+	 * @since 2.1.2
+	 *
+	 * @return array
+	 */
+	public static function get_names() {
+		$classes = self::get_class_names();
+
+		$names = array_keys( $classes );
+
+		return $names;
+	}
+
+}