plugin install

wp/wp-content/plugins/gravityforms/includes/assets/class-gf-dependencies.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace Gravity_Forms\Gravity_Forms\Assets;
+
+abstract class GF_Dependencies {
+
+	/**
+	 * Items to enqueue
+	 *
+	 * @since 2.6
+	 *
+	 * @var array
+	 */
+	protected $items = array();
+
+	/**
+	 * The method for actually enqueueing the items.
+	 *
+	 * @since 2.6
+	 *
+	 * @param $handle
+	 *
+	 * @return mixed
+	 */
+	abstract protected function do_enqueue( $handle );
+
+	/**
+	 * Get the dependency items.
+	 *
+	 * @since 2.6
+	 *
+	 * @return array
+	 */
+	public function get_items() {
+		return $this->items;
+	}
+
+	/**
+	 * Enqueue the items.
+	 *
+	 * @since 2.6
+	 *
+	 * @param $items
+	 */
+	public function enqueue() {
+		if ( ! $this->should_enqueue() ) {
+			return;
+		}
+
+		foreach ( $this->items as $handle ) {
+			$this->do_enqueue( $handle );
+		}
+	}
+
+	/**
+	 * Override to determine whether the assets outlined should be enqueued.
+	 *
+	 * @since 2.6
+	 *
+	 * @return bool
+	 */
+	protected function should_enqueue() {
+		return true;
+	}
+
+}