Enable Shortcode UI (Shortcake) for Gravity Forms

gravityform-shortcode-ui.php

<?php
/**
 * Registers Shortcode UI for gravityforms shortcode
 *
 * @package theme
 */

if ( ! function_exists( '_theme_gravityform_shortcode_ui' ) ) {

	/**
	 * Shortcode UI function for gravityforms
	 *
	 * @return void
	 */
	function _theme_gravityform_shortcode_ui() {
		if ( ! class_exists( 'GFAPI' ) ) {
			return;
		}

		$forms = array(
			'' => __( 'Select a Form', 'gravityforms' ),
		);
		
		$all_forms = GFAPI::get_forms();
		
		foreach ( $all_forms as $form ) :
			$forms[ $form['id'] ] = $form['title'];
		endforeach;

		$fields = array(
			array(
				'label'       => esc_html__( 'Select a form from the list to add it to your post or page.', 'gravityforms' ),
				'description' => esc_html__( 'Select a form below to add it to your post or page. Can\'t find your form? Make sure it is active.', 'gravityforms' ),
				'attr'        => 'id',
				'type'        => 'select',
				'options'     => $forms,
			),
			array(
				'label'       => esc_html__( 'Display form title', 'gravityforms' ),
				'description' => esc_html__( 'Whether or not to display the form title.', 'gravityforms' ),
				'attr'        => 'title',
				'type'        => 'radio',
				'options'     => array(
					'true'  => __( 'Yes', 'gravityforms' ),
					'false' => __( 'No', 'gravityforms' ),
				),
			),
			array(
				'label'       => esc_html__( 'Display form description', 'gravityforms' ),
				'description' => esc_html__( 'Whether or not to display the form description.', 'gravityforms' ),
				'attr'        => 'description',
				'type'        => 'radio',
				'options'     => array(
					'true'  => __( 'Yes', 'gravityforms' ),
					'false' => __( 'No', 'gravityforms' ),
				),
			),
			array(
				'label'       => esc_html__( 'Enable AJAX', 'gravityforms' ),
				'description' => esc_html__( 'Specify whether or not to use AJAX to submit the form.', 'gravityforms' ),
				'attr'        => 'ajax',
				'type'        => 'radio',
				'options'     => array(
					'true'  => __( 'Yes', 'gravityforms' ),
					'false' => __( 'No', 'gravityforms' ),
				),
			),
			array(
				'label'       => esc_html__( 'Tabindex', 'gravityforms' ),
				'description' => esc_html__( 'Specify the starting tab index for the fields of this form.', 'gravityforms' ),
				'attr'        => 'tabindex',
				'type'        => 'number',
			),
		);

		/*
		 * Define the Shortcode UI arguments.
		 */
		$shortcode_ui_args = array(

			/*
			 * How the shortcode should be labeled in the UI. Required argument.
			 */
			'label' => esc_html__( 'Gravity Form', 'gravityforms' ),

			/*
			 * Include an icon with your shortcode. Optional.
			 * Use a dashicon, or full URL to image.
			 */
			'listItemImage' => 'dashicons-feedback',

			'attrs' => $fields,
		);

		shortcode_ui_register_for_shortcode( 'gravityform', $shortcode_ui_args );
	}
}

add_action( 'register_shortcode_ui', '_theme_gravityform_shortcode_ui' );