From 68b27342cfd4091c2cb47c9c5ee66a0b079a998b Mon Sep 17 00:00:00 2001
From: Vlad <moi@mrcasual.com>
Date: Wed, 11 Sep 2024 14:50:11 -0400
Subject: [PATCH] Implement opening Single & Edit Entry fields in lightbox

---
 future/includes/class-gv-plugin.php           |   1 +
 ...ass-gravityview-lightbox-entry-request.php |  50 +++
 .../class-gravityview-lightbox-entry.php      | 287 ++++++++++++++++++
 3 files changed, 338 insertions(+)
 create mode 100644 includes/extensions/lightbox-entry/class-gravityview-lightbox-entry-request.php
 create mode 100644 includes/extensions/lightbox-entry/class-gravityview-lightbox-entry.php

diff --git a/future/includes/class-gv-plugin.php b/future/includes/class-gv-plugin.php
index b9223def2..6ff888d95 100644
--- a/future/includes/class-gv-plugin.php
+++ b/future/includes/class-gv-plugin.php
@@ -226,6 +226,7 @@ public function include_legacy_core() {
 		include_once $this->dir( 'includes/extensions/duplicate-entry/class-duplicate-entry.php' );
 		include_once $this->dir( 'includes/extensions/entry-notes/class-gravityview-field-notes.php' );
 		include_once $this->dir( 'includes/extensions/lightbox/class-gravityview-lightbox.php' );
+		include_once $this->dir( 'includes/extensions/lightbox-entry/class-gravityview-lightbox-entry.php' );
 
 		// Load WordPress Widgets
 		include_once $this->dir( 'includes/wordpress-widgets/register-wordpress-widgets.php' );
diff --git a/includes/extensions/lightbox-entry/class-gravityview-lightbox-entry-request.php b/includes/extensions/lightbox-entry/class-gravityview-lightbox-entry-request.php
new file mode 100644
index 000000000..8ee0ccf7f
--- /dev/null
+++ b/includes/extensions/lightbox-entry/class-gravityview-lightbox-entry-request.php
@@ -0,0 +1,50 @@
+<?php
+
+use GV\Frontend_Request;
+use GV\GF_Entry;
+use GV\View;
+
+class GravityView_Lightbox_Entry_Request extends Frontend_Request {
+	/**
+	 * Class constructor.
+	 *
+	 * @param View     $view
+	 * @param GF_Entry $entry
+	 */
+	public function __construct( View $view, GF_Entry $entry ) {
+		$this->entry = $entry;
+		$this->view  = $view;
+
+		add_filter( 'gravityview_go_back_url', '__return_null' );
+		add_filter( 'gravityview/entry_link/add_query_args', '__return_false' );
+
+		parent::__construct();
+	}
+
+	/**
+	 * {@inheritDoc}
+	 *
+	 * @since TBD
+	 */
+	public function is_entry( $form_id = 0 ) {
+		return $this->entry;
+	}
+
+	/**
+	 * {@inheritDoc}
+	 *
+	 * @since TBD
+	 */
+	public function is_view( $return_view = true ) {
+		return $return_view ? $this->view : true;
+	}
+
+	/**
+	 * {@inheritDoc}
+	 *
+	 * @since TBD
+	 */
+	public function is_renderable(): bool {
+		return true;
+	}
+}
diff --git a/includes/extensions/lightbox-entry/class-gravityview-lightbox-entry.php b/includes/extensions/lightbox-entry/class-gravityview-lightbox-entry.php
new file mode 100644
index 000000000..01f711b14
--- /dev/null
+++ b/includes/extensions/lightbox-entry/class-gravityview-lightbox-entry.php
@@ -0,0 +1,287 @@
+<?php
+
+use GV\Edit_Entry_Renderer;
+use GV\Entry_Renderer;
+use GV\GF_Entry;
+use GV\View;
+
+class GravityView_Lightbox_Entry {
+	/**
+	 * The REST namespace used for the single entry lightbox view.
+	 *
+	 * @since TBD
+	 */
+	const REST_NAMESPACE = 'gravityview/v1';
+
+	/**
+	 * Class constructor.
+	 *
+	 * @since TBD
+	 */
+	public function __construct() {
+		require_once 'class-gravityview-lightbox-entry-request.php';
+
+		add_filter( 'gk/foundation/rest/routes', [ $this, 'register_rest_routes' ] );
+		add_filter( 'gravityview_field_entry_link', [ $this, 'modify_entry_link' ], 10, 4 );
+		add_filter( 'gk/foundation/inline-scripts', [ $this, 'enqueue_view_editor_script' ] );
+	}
+
+	/**
+	 * Registers the REST route for the single entry lightbox view.
+	 *
+	 * @used-by `gk/foundation/rest/routes` filter.
+	 *
+	 * @since   TBD
+	 *
+	 * @param array[] $routes The registered REST routes.
+	 *
+	 * @return array
+	 */
+	public function register_rest_routes( $routes ) {
+		$routes = $routes ?? [];
+
+		$routes[] = [
+			'namespace'           => explode( '/v', self::REST_NAMESPACE )[0],
+			'version'             => explode( '/v', self::REST_NAMESPACE )[1],
+			'endpoint'            => sprintf(
+				'view/%s/entry/%s',
+				'(?P<view_id>[0-9]+)',
+				'(?P<entry_id>[0-9]+)' ),
+			'methods'             => [ 'GET', 'POST' ],
+			'callback'            => [ $this, 'render_entry' ],
+			'permission_callback' => '__return_true', // WP will handle the nonce and Entry_Renderer::render() will take care of permissions.
+		];
+
+		return $routes;
+	}
+
+	/**
+	 * Modify attributes for the single or entry link to open in a lightbox.
+	 *
+	 * @used-by `gravityview_field_entry_link` filter.
+	 *
+	 * @since   TBD
+	 *
+	 * @param string $link           The entry link (HTML markup).
+	 * @param string $href           The entry link URL.
+	 * @param array  $entry          The entry data.
+	 * @param array  $field_settings The Link to Single Entry field settings.
+	 *
+	 * @return string
+	 */
+	public function modify_entry_link( $link, $href, $entry, $field_settings ) {
+		$view          = GravityView_View::getInstance();
+		$href          = self::REST_NAMESPACE . "/view/{$view->getViewId()}/entry/{$entry['id']}";
+		$is_rest       = $href === ltrim( $_REQUEST['rest_route'] ?? '', '/' );
+		$is_edit_entry = 'edit_link' === $field_settings['id'];
+
+		if ( ! (int) ( $field_settings['lightbox'] ?? 0 ) && ! $is_rest ) {
+			return $link;
+		}
+
+		$args = [
+			'_wpnonce' => wp_create_nonce( 'wp_rest' ),
+		];
+
+		if ( $is_edit_entry ) {
+			$args['edit'] = wp_create_nonce( GravityView_Edit_Entry::get_nonce_key( $view->view_id, $view->form_id, $entry['id'] ) );
+		}
+
+		$href = add_query_arg(
+			$args,
+			rest_url( $href ),
+		);
+
+		$atts = [
+			'class'         => ( $link_atts['class'] ?? '' ) . ' gravityview-fancybox',
+			'rel'           => 'nofollow',
+			'data-type'     => 'iframe',
+			'data-fancybox' => $view->getCurrentField()['UID'],
+		];
+
+		return gravityview_get_link(
+			$href,
+			$is_edit_entry ? $field_settings['edit_link'] : $field_settings['entry_link_text'],
+			$is_rest ? [] : $atts // Do not add the attributes if the link is being rendered in the REST context.
+		);
+	}
+
+	/**
+	 * Renders the single or edit entry view.
+	 *
+	 * @used-by `gk/foundation/rest/routes` filter.
+	 *
+	 * @since   TBD
+	 *
+	 * @param GravityView_Lightbox_Entry_Request $request The request object.
+	 *
+	 * @return void
+	 */
+	public function render_entry( $request ) {
+		$view_id  = $request->get_param( 'view_id' ) ?? 0;
+		$entry_id = $request->get_param( 'entry_id' ) ?? 0;
+
+		$view      = View::by_id( $view_id );
+		$entry     = GF_Entry::by_id( $entry_id );
+		$form      = GVCommon::get_form( $entry['form_id'] ?? 0 );
+		$is_edit   = $request->get_param( 'edit' ) ?? null;
+		$is_delete = $request->get_param( 'delete' ) ?? null;
+
+		if ( ! $view || ! $entry || ! $form ) {
+			gravityview()->log->error( "Unable to find View ID {$view_id} and/or entry ID {$entry_id}." );
+
+			return;
+		}
+
+		$view_data = GravityView_View_Data::getInstance();
+		$view_data->add_view( $view->ID );
+
+		if ( $is_edit && wp_verify_nonce( $is_edit, GravityView_Edit_Entry::get_nonce_key( $view->ID, $form['id'], $entry->ID ) ) ) {
+			add_filter( 'gravityview/edit_entry/verify_nonce', '__return_true' );
+		}
+
+		ob_start();
+
+		if ( $is_delete ) {
+			add_filter( 'wp_redirect', '__return_false' );
+			do_action( 'wp' ); // Entry deletion hooks to the `wp` action.
+
+			$redirect_url = $view->settings->get( 'delete_redirect_url', '' );
+			$reload_page  = GravityView_Delete_Entry::REDIRECT_TO_MULTIPLE_ENTRIES_VALUE === (int) $view->settings->get( 'delete_redirect', GravityView_Delete_Entry::REDIRECT_TO_MULTIPLE_ENTRIES_VALUE );
+
+			?>
+				<script type="text/javascript">
+					window.parent.postMessage( {
+						reloadPage: <?php echo $reload_page ? 'true' : 'false'; ?>,
+						redirectUrl: '<?php echo esc_url( $redirect_url ); ?>',
+					} );
+				</script>
+			<?php
+
+			return new WP_REST_Response( null, 200, [ 'Content-Type' => 'text/html' ] );
+		}
+
+		GravityView_frontend::getInstance()->setGvOutputData( $view_data );
+		GravityView_frontend::getInstance()->add_scripts_and_styles();
+
+		$title = do_shortcode(
+			GravityView_API::replace_variables(
+				$view->settings->get( 'single_title', '' ),
+				$form,
+				$entry
+			)
+		);
+
+		$entry_renderer = $is_edit ? new Edit_Entry_Renderer() : new Entry_Renderer();
+
+		$content = $entry_renderer->render(
+			$entry,
+			$view,
+			new GravityView_Lightbox_Entry_Request( $view, $entry )
+		);
+
+		?>
+		<html lang="<?php echo get_bloginfo( 'language' ); ?>">
+			<head>
+				<title><?php echo $title; ?></title>
+
+				<?php wp_head(); ?>
+
+				<style>
+					<?php echo $view->settings->get( 'custom_css', '' ); ?>
+				</style>
+
+				<script type="text/javascript">
+					<?php echo $view->settings->get( 'custom_javascript', '' ); ?>
+				</script>
+			</head>
+
+			<body>
+				<?php echo $content; ?>
+			</body>
+
+			<?php wp_print_scripts(); ?>
+			<?php wp_print_styles(); ?>
+		</html>
+		<?php
+
+		// Set the response content type and let WP take care of returning the buffered content.
+		return new WP_REST_Response( null, 200, [ 'Content-Type' => 'text/html' ] );
+	}
+
+	/**
+	 * Enqueues View editor script that handles the lightbox entry settings.
+	 *
+	 * @since TBD
+	 *
+	 * @param array $scripts The registered scripts.
+	 *
+	 * @return void
+	 */
+	public function enqueue_view_editor_script( $scripts ) {
+		global $post;
+
+		if ( ! $post instanceof WP_Post && 'gravityview' !== $post->post_type && 'edit' !== $post->filter ) {
+			return $scripts;
+		}
+
+		$scripts[] = [
+			'script' => <<<JS
+				// Disable "open in new tab/window" input when "open in lightbox" is checked, and vice versa.
+				jQuery( document ).ready( function ( jQuery ) {
+					function handleInputState( dialog ) {
+						const newWindow = dialog.find( '.gv-setting-container-new_window input' );
+						const lightbox = dialog.find( '.gv-setting-container-lightbox input' );
+				
+						function updateState( active, inactive ) {
+							if ( active.is( ':checked' ) ) {
+								inactive.prop( 'checked', false ).prop( 'disabled', true );
+							} else {
+								inactive.prop( 'disabled', false );
+							}
+						}
+				
+						updateState( newWindow, lightbox );
+						updateState( lightbox, newWindow );
+					}
+					
+					function handleChange( changedInput, otherInput ) {
+						otherInput.prop( 'checked', false );
+
+						// This is a workaround for the element not being disabled probably due to interference from other JS.
+						setTimeout( function () {
+							otherInput.prop( 'disabled', changedInput.is( ':checked' ) );
+						}, 10 );
+					}
+					
+					jQuery( document ).on( 'gravityview/dialog-opened', function ( event, thisDialog ) {
+						const dialog = jQuery( thisDialog );
+				
+						handleInputState( dialog );
+				
+						const newWindow = dialog.find( '.gv-setting-container-new_window input' );
+						const lightbox = dialog.find( '.gv-setting-container-lightbox input' );
+				
+						newWindow.on( 'change.lightboxEntry', function () {
+							handleChange( jQuery( this ), lightbox );
+						} );
+				
+						lightbox.on( 'change.lightboxEntry', function () {
+							handleChange( jQuery( this ), newWindow );
+						} );
+					} );
+				
+					jQuery( document ).on( 'gravityview/dialog-closed', function ( event, thisDialog ) {
+						jQuery( thisDialog ).find( '.gv-setting-container-new_window input, .gv-setting-container-lightbox input' )
+							.off( 'change.lightboxEntry' );
+					} );
+				} );
+JS,
+			'deps'   => [ 'jquery' ],
+		];
+
+		return $scripts;
+	}
+}
+
+new GravityView_Lightbox_Entry();