flash-toolkit.php

<?php
/**
 * Plugin Name: Flash Toolkit
 * Plugin URI: http://themegrill.com/theme/flash
 * Description: Flash Toolkit is a companion for Flash WordPress theme by ThemeGrill
 * Version: 1.2.5
 * Author: ThemeGrill
 * Author URI: http://themegrill.com
 * License: GPLv3 or later
 * Text Domain: flash-toolkit
 * Domain Path: /i18n/languages/
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

if ( ! class_exists( 'FlashToolkit' ) ) :

	/**
	 * FlashToolkit main class.
	 *
	 * @class   FlashToolkit
	 * @version 1.0.0
	 */
	final class FlashToolkit {

		/**
		 * Plugin version.
		 *
		 * @var string
		 */
		public $version = '1.2.5';

		/**
		 * Instance of this class.
		 *
		 * @var object
		 */
		protected static $_instance = null;

		/**
		 * Return an instance of this class.
		 *
		 * @return object A single instance of this class.
		 */
		public static function instance() {
			// If the single instance hasn't been set, set it now.
			if ( is_null( self::$_instance ) ) {
				self::$_instance = new self();
			}

			return self::$_instance;
		}

		/**
		 * Cloning is forbidden.
		 *
		 * @since 1.0
		 */
		public function __clone() {
			_doing_it_wrong( __FUNCTION__, __( 'Cheatin&#8217; huh?', 'flash-toolkit' ), '1.0' );
		}

		/**
		 * Unserializing instances of this class is forbidden.
		 *
		 * @since 1.0
		 */
		public function __wakeup() {
			_doing_it_wrong( __FUNCTION__, __( 'Cheatin&#8217; huh?', 'flash-toolkit' ), '1.0' );
		}

		/**
		 * FlashToolkit Constructor.
		 */
		public function __construct() {
			$this->define_constants();
			$this->includes();
			$this->init_hooks();

			do_action( 'flash_toolkit_loaded' );
		}

		/**
		 * Hook into actions and filters.
		 */
		private function init_hooks() {
			register_activation_hook( __FILE__, array( 'FT_Install', 'install' ) );
			register_deactivation_hook( __FILE__, array( 'FT_Install', 'deactivate' ) );
			add_action( 'init', array( $this, 'load_plugin_textdomain' ) );
			add_action( 'admin_notices', array( $this, 'theme_support_missing_notice' ) );
		}

		/**
		 * Define FT Constants.
		 */
		private function define_constants() {
			$this->define( 'FT_PLUGIN_FILE', __FILE__ );
			$this->define( 'FT_ABSPATH', __DIR__ . '/' );
			$this->define( 'FT_PLUGIN_BASENAME', plugin_basename( __FILE__ ) );
			$this->define( 'FT_VERSION', $this->version );
			$this->define( 'FT_TEMPLATE_DEBUG_MODE', false );
		}

		/**
		 * Define constant if not already set.
		 *
		 * @param string      $name
		 * @param string|bool $value
		 */
		private function define( $name, $value ) {
			if ( ! defined( $name ) ) {
				define( $name, $value );
			}
		}

		/**
		 * What type of request is this?
		 *
		 * @param string $type admin or frontend.
		 *
		 * @return bool
		 */
		private function is_request( $type ) {
			switch ( $type ) {
				case 'admin':
					return is_admin();
				case 'frontend':
					return ( ! is_admin() || defined( 'DOING_AJAX' ) ) && ! defined( 'DOING_CRON' );
			}
		}

		/**
		 * Includes.
		 */
		private function includes() {
			include_once FT_ABSPATH . 'includes/functions-flash-core.php';
			include_once FT_ABSPATH . 'includes/functions-flash-widget.php';
			include_once FT_ABSPATH . 'includes/class-flash-autoloader.php';
			include_once FT_ABSPATH . 'includes/class-flash-install.php';
			include_once FT_ABSPATH . 'includes/class-flash-ajax.php';
			include_once FT_ABSPATH . 'includes/class-flash-inline-style.php';

			if ( $this->is_request( 'admin' ) ) {
				include_once FT_ABSPATH . 'includes/admin/class-flash-admin.php';
			}

			if ( is_flash_pro_active() ) {
				include_once FT_ABSPATH . 'includes/class-flash-sidebars.php';
			}

			include_once FT_ABSPATH . 'includes/class-flash-post-types.php'; // Registers post types
		}

		/**
		 * Load Localisation files.
		 *
		 * Note: the first-loaded translation file overrides any following ones if the same translation is present.
		 *
		 * Locales found in:
		 *      - WP_LANG_DIR/flash-toolkit/flash-toolkit-LOCALE.mo
		 *      - WP_LANG_DIR/plugins/flash-toolkit-LOCALE.mo
		 */
		public function load_plugin_textdomain() {
			$locale = is_admin() && function_exists( 'get_user_locale' ) ? get_user_locale() : get_locale();
			$locale = apply_filters( 'plugin_locale', $locale, 'flash-toolkit' );

			unload_textdomain( 'flash-toolkit' );
			load_textdomain( 'flash-toolkit', WP_LANG_DIR . '/flash-toolkit/flash-toolkit-' . $locale . '.mo' );
			load_plugin_textdomain( 'flash-toolkit', false, plugin_basename( __DIR__ ) . '/i18n/languages' );
		}

		/**
		 * Theme support fallback notice.
		 *
		 * @return string
		 */
		public function theme_support_missing_notice() {
			$theme  = wp_get_theme();
			$parent = $theme->parent();

			// Check with ThemeGrill Flash Theme is installed.
			if ( ( $theme != 'Flash' ) && ( $theme != 'Flash Pro' ) && ( $parent != 'Flash' ) && ( $parent != 'Flash Pro' ) ) {
				echo '<div class="error notice is-dismissible"><p><strong>' . __( 'Flash Toolkit', 'flash-toolkit' ) . '</strong> &#8211; ' . sprintf( __( 'This plugin requires %s by ThemeGrill to work.', 'flash-toolkit' ), '<a href="http://www.themegrill.com/themes/flash/" target="_blank">' . __( 'Flash Theme', 'flash-toolkit' ) . '</a>' ) . '</p></div>';
			}
		}

		/**
		 * Get the plugin url.
		 *
		 * @return string
		 */
		public function plugin_url() {
			return untrailingslashit( plugins_url( '/', __FILE__ ) );
		}

		/**
		 * Get the plugin path.
		 *
		 * @return string
		 */
		public function plugin_path() {
			return untrailingslashit( plugin_dir_path( __FILE__ ) );
		}

		/**
		 * Get the template path.
		 *
		 * @return string
		 */
		public function template_path() {
			return apply_filters( 'flash_toolkit_template_path', 'flash-toolkit/' );
		}

		/**
		 * Get Ajax URL.
		 *
		 * @return string
		 */
		public function ajax_url() {
			return admin_url( 'admin-ajax.php', 'relative' );
		}
	}

endif;

/**
 * Main instance of FlashToolkit.
 *
 * Returns the main instance of FT to prevent the need to use globals.
 *
 * @return FlashToolkit
 * @since  1.0
 */
function FT() {
	return FlashToolkit::instance();
}

// Global for backwards compatibility.
$GLOBALS['flashtoolkit'] = FT();