update plugins

wp/wp-content/plugins/gravityforms/includes/class-gf-service-container.php

@@ -0,0 +1,94 @@
+<?php
+
+namespace Gravity_Forms\Gravity_Forms;
+
+/**
+ * Class GF_Service_Container
+ *
+ * A simple Service Container used to collect and organize Services used by the application and its modules.
+ *
+ * @since 2.5
+ *
+ * @package Gravity_Forms\Gravity_Forms
+ */
+class GF_Service_Container {
+
+	private $services = array();
+	private $providers = array();
+
+	/**
+	 * Add a service to the container.
+	 *
+	 * @since 2.5
+	 *
+	 * @param string $name   The service Name
+	 * @param mixed $service The service to add
+	 */
+	public function add( $name, $service, $defer = false ) {
+		if ( empty( $name ) ) {
+			$name = get_class( $service );
+		}
+
+		if ( ! $defer && is_callable( $service ) ) {
+			$service = $service();
+		}
+
+		$this->services[ $name ] = $service;
+	}
+
+	/**
+	 * Remove a service from the container.
+	 *
+	 * @since 2.5
+	 *
+	 * @param string $name The service name.
+	 */
+	public function remove( $name ) {
+		unset( $this->services[ $name ] );
+	}
+
+	/**
+	 * Get a service from the container by name.
+	 *
+	 * @since 2.5
+	 *
+	 * @param string $name The service name.
+	 *
+	 * @return mixed|null
+	 */
+	public function get( $name ) {
+		if ( ! isset( $this->services[ $name ] ) ) {
+			return null;
+		}
+
+		if ( is_callable( $this->services[ $name ] ) ) {
+			$called                  = $this->services[ $name ]();
+			$this->services[ $name ] = $called;
+		}
+
+		return $this->services[ $name ];
+	}
+
+	/**
+	 * Add a service provider to the container and register each of its services.
+	 *
+	 * @since 2.5
+	 *
+	 * @param GF_Service_Provider $provider
+	 */
+	public function add_provider( GF_Service_Provider $provider ) {
+		$provider_name = get_class( $provider );
+
+		// Only add providers a single time.
+		if ( isset( $this->providers[ $provider_name ] ) ) {
+			return;
+		}
+
+		$this->providers[ $provider_name ] = $provider;
+
+		$provider->set_container( $this );
+		$provider->register( $this );
+		$provider->init( $this );
+	}
+
+}