cf7-additional-types.php

<?php
/**
 * Plugin Name: CF7 Additional Types
 * Plugin URI: https://github.com/meostudio/cf7-additional-types
 * Description: Additional input field types for Contact Form 7.
 * Version: 2.0.1
 * Author: Janis Freimann, meo.studio
 * Author URI: https://janfrei.me/
 * Developer: Janis Freimann
 * Developer E-Mail: janis@meo.studio
 * Text Domain: cf7-additional-types
 * Domain Path: /languages
 *
 * Credits:
 * this plugin uses Ion.RangeSlider and Ion.Calendar, distributed under the MIT license.
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

final class CF7_AdditionalTypes {
	const PLUGIN_NAME       = 'CF7 Additional Types';
	const PLUGIN_VERSION    = '2.0.1';
	const PLUGIN_TEXTDOMAIN = 'cf7-additional-types';
	private $types          = [
		'rangeslider',
		'datepicker',
	];
	private $instances      = [];
	private $assets         = [];
	private $admin_assets   = [];
	private $admin_css      = false;

	private static $instance;

	private function __construct() { }

	public function construct() {
		load_plugin_textdomain( CF7AT_TEXTDOMAIN, false, plugin_dir_url( __FILE__ ) . 'languages' );

		if ( is_admin() ) {
			add_action( 'admin_init', [ $this, 'dependencies_check' ] );
			add_action( 'wpcf7_admin_init', [ $this, 'add_tag_generators' ], 18 );
			add_action( 'admin_enqueue_scripts', [ $this, 'enqueue_admin_scripts_styles' ] );
		}
		add_action( 'wpcf7_init', [ $this, 'register_cf7_shortcodes' ] );
		add_action( 'wp_enqueue_scripts', [ $this, 'enqueue_scripts_styles' ] );

		foreach ( $this->types as $type ) {
			require plugin_dir_path( __FILE__ ) . "inc/{$type}.php";

			$classname                = __CLASS__ . '_' . ucfirst( $type );
			$this->instances[ $type ] = new $classname( $type );
			$instance                 = &$this->instances[ $type ];

			if ( ! method_exists( $instance, 'shortcode_handler' ) || ! property_exists( $instance, 'title' ) ) {
				$this->stop_and_deactivate();
			}
		}

		$this->add_js_asset( 'cf7-additional-types', 'plugin.min.js', [ 'jquery' ] );
	}

	public static function init() {
		if ( empty( self::$instance ) ) {
			self::$instance = new self();
			define( 'CF7AT_TEXTDOMAIN', self::PLUGIN_TEXTDOMAIN );

			self::$instance->construct();
		}
	}

	public static function get_instance() {
		if ( empty( self::$instance ) ) {
			self::init();
		}

		return self::$instance;
	}

	public function add_js_asset( $name, $filename, $dependepcies = [], $in_footer = false, $admin = false ) {
		if ( ! is_array( $dependepcies ) ) {
			$dependepcies = [];
		}
		if ( ! is_bool( $in_footer ) ) {
			$in_footer = false;
		}

		if ( $admin ) {
			$this->admin_assets[] = [ $name, $filename, $dependepcies, $in_footer ];
		} else {
			$this->assets[] = [ $name, $filename, $dependepcies, $in_footer ];
		}
	}

	public function load_css_on_admin() {
		$this->admin_css = true;
	}

	public function enqueue_scripts_styles() {
		if ( $this->check_for_cf7() ) {
			wp_enqueue_style( 'wpcf7-additional-types', plugin_dir_url( __FILE__ ) . 'assets/css/style.min.css', [], self::PLUGIN_VERSION );

			foreach ( $this->assets as $asset ) {
				wp_enqueue_script( $asset[0], plugin_dir_url( __FILE__ ) . 'assets/js/' . $asset[1], $asset[2], self::PLUGIN_VERSION, $asset[3] );
			}
		}
	}

	public function enqueue_admin_scripts_styles() {
		if ( $this->admin_css ) {
			wp_enqueue_style( 'wpcf7-additional-types', plugin_dir_url( __FILE__ ) . 'assets/css/style.min.css', [], self::PLUGIN_VERSION );
		}

		wp_enqueue_script( 'wpcf7-additional-types-admin', plugin_dir_url( __FILE__ ) . 'assets/js/admin.min.js', [ 'jquery' ], self::PLUGIN_VERSION );

		foreach ( $this->admin_assets as $asset ) {
			wp_enqueue_script( $asset[0], plugin_dir_url( __FILE__ ) . 'assets/js/' . $asset[1], $asset[2], self::PLUGIN_VERSION, $asset[3] );
		}
	}

	public function register_cf7_shortcodes() {
		foreach ( $this->instances as $type => $instance ) {
			$codes = ( $instance->supports_required ) ? [ $type, $type . '*' ] : [ $type ];
			wpcf7_add_shortcode( $codes, [ $instance, 'shortcode_handler' ], true );

			if ( method_exists( $instance, 'validation_filter' ) ) {
				add_filter( 'wpcf7_validate_' . $type, [ $instance, 'validation_filter' ], 10, 2 );
				if ( $instance->supports_required ) {
					add_filter( 'wpcf7_validate_' . $type . '*', [ $instance, 'validation_filter' ], 10, 2 );
				}

				if ( method_exists( $instance, 'messages' ) ) {
					add_filter( 'wpcf7_messages', [ $instance, 'messages' ] );
				}
			}
		}
	}

	public function add_tag_generators() {
		$tag_generator = WPCF7_TagGenerator::get_instance();

		foreach ( $this->instances as $type => $instance ) {
			if ( ! method_exists( $instance, 'tag_generator' ) ) {
				$this->stop_and_deactivate();
			} else {
				$tag_generator->add( $type, $instance->title, [ $instance, 'tag_generator' ] );
			}
		}
	}

	public function dependencies_check() {
		if ( ! $this->check_for_cf7() ) {
			add_action(
				'admin_notices',
				function() {
					echo '<div class="notice notice-warning is-dissmissible">' .
					'<p>' . sprintf( __( 'You need to install and activate the Contact Form 7 Plugin to use %s.', CF7AT_TEXTDOMAIN ), self::PLUGIN_NAME ) . '</p>' . // phpcs:ignore
					'</div>';
				}
			);
		}
	}

	private function check_for_cf7() {
		return defined( 'WPCF7_PLUGIN' );
	}

	private function stop_and_deactivate() {
		require_once ABSPATH . 'wp-admin/includes/plugin.php';
		deactivate_plugins( plugin_basename( __FILE__ ) );
		wp_die( sprintf( __( 'This version of %s is broken or incompatible with your WordPress installation. Please try to reinstall it from the WordPress repository.', CF7AT_TEXTDOMAIN ), self::PLUGIN_NAME ) ); // phpcs:ignore
	}
}

CF7_AdditionalTypes::init();