class-gravityview-lightbox.php

Go to the documentation of this file.

<?php

/**
 * Manage lightbox scripts for GravityView
 *
 * TODO: Add a global setting for lightbox providers
 * TODO: Add per-field settings
 *
 * @internal
 */
class GravityView_Lightbox {
 const DEFAULT_PROVIDER = 'fancybox';

 private static $providers = array();

 private static $active_provider = null;

 /**
 * GravityView_Lightbox_Provider constructor.
 */
 public function __construct() {
 require_once gravityview()->plugin->dir( 'includes/extensions/lightbox/class-gravityview-lightbox-provider.php' );
 require_once gravityview()->plugin->dir( 'includes/extensions/lightbox/fancybox/class-gravityview-lightbox-provider-fancybox.php' );

 add_action( 'plugins_loaded', array( $this, 'set_provider' ), 11 );

 add_action( 'gravityview/lightbox/provider', array( $this, 'set_provider' ) );
 }

 /**
 * Activate the lightbox provider chosen in settings
 *
 * @param string|null $provider GravityView_Lightbox_Provider::$slug of provider
 *
 * @internal
 *
 */
 public function set_provider( $provider = null ) {

 if( gravityview()->request->is_admin() ) {
 return;
 }

 if ( empty( $provider ) ) {
 $provider = gravityview()->plugin->settings->get( 'lightbox', self::DEFAULT_PROVIDER );
 }

 if ( empty( self::$providers[ $provider ] ) || ! class_exists( self::$providers[ $provider ] ) ) {
 gravityview()->log->error( 'Lightbox provider {provider} not registered.', array( 'provider' => $provider ) );
 return;
 }

 // Already set up.
 if ( self::$active_provider && self::$active_provider instanceof self::$providers[ $provider ] ) {
 return;
 }

 // We're switching providers; remove the hooks that were added.
 if( self::$active_provider ) {
 self::$active_provider->remove_hooks();
 }

 self::$active_provider = new self::$providers[ $provider ];

 self::$active_provider->add_hooks();
 }

 /**
 * Register lightbox providers
 *
 * @param $provider
 */
 public static function register( $provider ) {
 self::$providers[ $provider::$slug ] = $provider;
 }

}

new GravityView_Lightbox();