diff -r 372f2766ea20 -r bf1778c34b9a wp/wp-content/plugins/option-tree/ot-loader.php
--- a/wp/wp-content/plugins/option-tree/ot-loader.php	Mon Oct 14 18:30:03 2019 +0200
+++ b/wp/wp-content/plugins/option-tree/ot-loader.php	Mon Oct 14 18:35:50 2019 +0200
@@ -3,804 +3,734 @@
  * Plugin Name: OptionTree
  * Plugin URI:  https://github.com/valendesigns/option-tree/
  * Description: Theme Options UI Builder for WordPress. A simple way to create & save Theme Options and Meta Boxes for free or premium themes.
- * Version:     2.6.0
+ * Version:     2.7.3
  * Author:      Derek Herman
  * Author URI:  http://valendesigns.com
- * License:     GPLv3
+ * License:     GPLv2 or later
  * Text Domain: option-tree
+ *
+ * @package OptionTree
  */
 
-/**
- * Forces Plugin Mode when OptionTree is already loaded and displays an admin notice.
- */
-if ( class_exists( 'OT_Loader' ) && defined( 'OT_PLUGIN_MODE' ) && OT_PLUGIN_MODE == true ) {
-  
-  add_filter( 'ot_theme_mode', '__return_false', 999 );
-  
-  function ot_conflict_notice() {
-    
-    echo '<div class="error"><p>' . __( 'OptionTree is installed as a plugin and also embedded in your current theme. Please deactivate the plugin to load the theme dependent version of OptionTree, and remove this warning.', 'option-tree' ) . '</p></div>';
-    
-  }
-  
-  add_action( 'admin_notices', 'ot_conflict_notice' );
-  
+if ( class_exists( 'OT_Loader' ) && defined( 'OT_PLUGIN_MODE' ) && true === OT_PLUGIN_MODE && defined( 'ABSPATH' ) ) {
+
+	add_filter( 'ot_theme_mode', '__return_false', 999 );
+
+	/**
+	 * Forces Plugin Mode when OptionTree is already loaded and displays an admin notice.
+	 */
+	function ot_conflict_notice() {
+		echo '<div class="error"><p>' . esc_html__( 'OptionTree is installed as a plugin and also embedded in your current theme. Please deactivate the plugin to load the theme dependent version of OptionTree, and remove this warning.', 'option-tree' ) . '</p></div>';
+	}
+
+	add_action( 'admin_notices', 'ot_conflict_notice' );
 }
 
-/**
- * This is the OptionTree loader class.
- *
- * @package   OptionTree
- * @author    Derek Herman <derek@valendesigns.com>
- * @copyright Copyright (c) 2013, Derek Herman
- */
-if ( ! class_exists( 'OT_Loader' ) ) {
+if ( ! class_exists( 'OT_Loader' ) && defined( 'ABSPATH' ) ) {
+
+	/**
+	 * OptionTree loader class.
+	 */
+	class OT_Loader {
+
+		/**
+		 * Class constructor.
+		 *
+		 * This method loads other methods of the class.
+		 *
+		 * @access public
+		 * @since  2.0
+		 */
+		public function __construct() {
+
+			// Load OptionTree.
+			add_action( 'after_setup_theme', array( $this, 'load_option_tree' ), 1 );
+		}
+
+		/**
+		 * OptionTree loads on the 'after_setup_theme' action.
+		 *
+		 * @todo Load immediately.
+		 *
+		 * @access public
+		 * @since 2.1.2
+		 */
+		public function load_option_tree() {
+
+			// Setup the constants.
+			$this->constants();
+
+			// Include the required admin files.
+			$this->admin_includes();
+
+			// Include the required files.
+			$this->includes();
+
+			// Hook into WordPress.
+			$this->hooks();
+		}
+
+		/**
+		 * Constants.
+		 *
+		 * Defines the constants for use within OptionTree. Constants
+		 * are prefixed with 'OT_' to avoid any naming collisions.
+		 *
+		 * @access private
+		 * @since  2.0
+		 */
+		private function constants() {
+
+			/**
+			 * Current Version number.
+			 */
+			define( 'OT_VERSION', '2.7.3' );
+
+			/**
+			 * For developers: Theme mode.
+			 *
+			 * Run a filter and set to true to enable OptionTree theme mode.
+			 * You must have this files parent directory inside of
+			 * your themes root directory. As well, you must include
+			 * a reference to this file in your themes functions.php.
+			 *
+			 * @since 2.0
+			 */
+			define( 'OT_THEME_MODE', apply_filters( 'ot_theme_mode', false ) );
 
-  class OT_Loader {
-    
-    /**
-     * PHP5 constructor method.
-     *
-     * This method loads other methods of the class.
-     *
-     * @return    void
-     *
-     * @access    public
-     * @since     2.0
-     */
-    public function __construct() {
-      
-      /* load languages */
-      $this->load_languages();
-      
-      /* load OptionTree */
-      add_action( 'after_setup_theme', array( $this, 'load_option_tree' ), 1 );
-      
-    }
-    
-    /**
-     * Load the languages before everything else.
-     *
-     * @return    void
-     *
-     * @access    private
-     * @since     2.1.3
-     */
-    private function load_languages() {
-    
-      /**
-       * A quick check to see if we're in plugin mode.
-       *
-       * @since     2.1.3
-       */
-      define( 'OT_PLUGIN_MODE', strpos( dirname( __FILE__ ), 'plugins' . DIRECTORY_SEPARATOR . basename( dirname( __FILE__ ) ) ) !== false ? true : false );
-      
-      /**
-       * Path to the languages directory. 
-       *
-       * This path will be relative in plugin mode and absolute in theme mode.
-       *
-       * @since     2.0.10
-       * @updated   2.4.1
-       */
-      if ( OT_PLUGIN_MODE ) {
-        
-        define( 'OT_LANG_DIR', trailingslashit( dirname( plugin_basename( __FILE__ ) ) ) . trailingslashit( 'languages' ) );
-        
-      } else {
-      
-        if ( apply_filters( 'ot_child_theme_mode', false ) == true ) {
-        
-          $path = @explode( get_stylesheet(), str_replace( '\\', '/', dirname( __FILE__ ) ) );
-          $path = ltrim( end( $path ), '/' );
-          define( 'OT_LANG_DIR', trailingslashit( trailingslashit( get_stylesheet_directory() ) . $path ) . trailingslashit( 'languages' ) . 'theme-mode' );
-          
-        } else {
-          
-          $path = @explode( get_template(), str_replace( '\\', '/', dirname( __FILE__ ) ) );
-          $path = ltrim( end( $path ), '/' );
-          define( 'OT_LANG_DIR', trailingslashit( trailingslashit( get_template_directory() ) . $path ) . trailingslashit( 'languages' ) . 'theme-mode' );
-          
-        }
-      
-      }
+			/**
+			 * For developers: Child Theme mode. TODO document
+			 *
+			 * Run a filter and set to true to enable OptionTree child theme mode.
+			 * You must have this files parent directory inside of
+			 * your themes root directory. As well, you must include
+			 * a reference to this file in your themes functions.php.
+			 *
+			 * @since 2.0.15
+			 */
+			define( 'OT_CHILD_THEME_MODE', apply_filters( 'ot_child_theme_mode', false ) );
+
+			/**
+			 * For developers: Show Pages.
+			 *
+			 * Run a filter and set to false if you don't want to load the
+			 * settings & documentation pages in the admin area of WordPress.
+			 *
+			 * @since 2.0
+			 */
+			define( 'OT_SHOW_PAGES', apply_filters( 'ot_show_pages', true ) );
+
+			/**
+			 * For developers: Show Theme Options UI Builder
+			 *
+			 * Run a filter and set to false if you want to hide the
+			 * Theme Options UI page in the admin area of WordPress.
+			 *
+			 * @since 2.1
+			 */
+			define( 'OT_SHOW_OPTIONS_UI', apply_filters( 'ot_show_options_ui', true ) );
+
+			/**
+			 * For developers: Show Settings Import
+			 *
+			 * Run a filter and set to false if you want to hide the
+			 * Settings Import options on the Import page.
+			 *
+			 * @since 2.1
+			 */
+			define( 'OT_SHOW_SETTINGS_IMPORT', apply_filters( 'ot_show_settings_import', true ) );
 
-      /* load the text domain  */
-      if ( OT_PLUGIN_MODE ) {
-      
-        add_action( 'plugins_loaded', array( $this, 'load_textdomain' ) );
-        
-      } else {
-      
-        add_action( 'after_setup_theme', array( $this, 'load_textdomain' ) );
-        
-      }
-      
-    }
-    
-    /**
-     * Load the text domain.
-     *
-     * @return    void
-     *
-     * @access    private
-     * @since     2.0
-     */
-    public function load_textdomain() {
-    
-      if ( OT_PLUGIN_MODE ) {
-      
-        load_plugin_textdomain( 'option-tree', false, OT_LANG_DIR );
-        
-      } else {
-      
-        load_theme_textdomain( 'option-tree', OT_LANG_DIR );
-        
-      }
-      
-    }
-    
-    /** 
-     * Load OptionTree on the 'after_setup_theme' action. Then filters will 
-     * be availble to the theme, and not only when in Theme Mode.
-     *
-     * @return    void
-     *
-     * @access    public
-     * @since     2.1.2
-     */
-    public function load_option_tree() {
-    
-      /* setup the constants */
-      $this->constants();
-      
-      /* include the required admin files */
-      $this->admin_includes();
-      
-      /* include the required files */
-      $this->includes();
-      
-      /* hook into WordPress */
-      $this->hooks();
-      
-    }
+			/**
+			 * For developers: Show Settings Export
+			 *
+			 * Run a filter and set to false if you want to hide the
+			 * Settings Import options on the Import page.
+			 *
+			 * @since 2.1
+			 */
+			define( 'OT_SHOW_SETTINGS_EXPORT', apply_filters( 'ot_show_settings_export', true ) );
+
+			/**
+			 * For developers: Show New Layout.
+			 *
+			 * Run a filter and set to false if you don't want to show the
+			 * "New Layout" section at the top of the theme options page.
+			 *
+			 * @since 2.0.10
+			 */
+			define( 'OT_SHOW_NEW_LAYOUT', apply_filters( 'ot_show_new_layout', true ) );
+
+			/**
+			 * For developers: Show Documentation
+			 *
+			 * Run a filter and set to false if you want to hide the Documentation.
+			 *
+			 * @since 2.1
+			 */
+			define( 'OT_SHOW_DOCS', apply_filters( 'ot_show_docs', true ) );
+
+			/**
+			 * For developers: Custom Theme Option page
+			 *
+			 * Run a filter and set to false if you want to hide the OptionTree
+			 * Theme Option page and build your own.
+			 *
+			 * @since 2.1
+			 */
+			define( 'OT_USE_THEME_OPTIONS', apply_filters( 'ot_use_theme_options', true ) );
+
+			/**
+			 * For developers: Meta Boxes.
+			 *
+			 * Run a filter and set to false to keep OptionTree from
+			 * loading the meta box resources.
+			 *
+			 * @since 2.0
+			 */
+			define( 'OT_META_BOXES', apply_filters( 'ot_meta_boxes', true ) );
 
-    /**
-     * Constants
-     *
-     * Defines the constants for use within OptionTree. Constants 
-     * are prefixed with 'OT_' to avoid any naming collisions.
-     *
-     * @return    void
-     *
-     * @access    private
-     * @since     2.0
-     */
-    private function constants() {
-      
-      /**
-       * Current Version number.
-       */
-      define( 'OT_VERSION', '2.6.0' );
-      
-      /**
-       * For developers: Theme mode.
-       *
-       * Run a filter and set to true to enable OptionTree theme mode.
-       * You must have this files parent directory inside of 
-       * your themes root directory. As well, you must include 
-       * a reference to this file in your themes functions.php.
-       *
-       * @since     2.0
-       */
-      define( 'OT_THEME_MODE', apply_filters( 'ot_theme_mode', false ) );
-      
-      /**
-       * For developers: Child Theme mode. TODO document
-       *
-       * Run a filter and set to true to enable OptionTree child theme mode.
-       * You must have this files parent directory inside of 
-       * your themes root directory. As well, you must include 
-       * a reference to this file in your themes functions.php.
-       *
-       * @since     2.0.15
-       */
-      define( 'OT_CHILD_THEME_MODE', apply_filters( 'ot_child_theme_mode', false ) );
-      
-      /**
-       * For developers: Show Pages.
-       *
-       * Run a filter and set to false if you don't want to load the
-       * settings & documentation pages in the admin area of WordPress.
-       *
-       * @since     2.0
-       */
-      define( 'OT_SHOW_PAGES', apply_filters( 'ot_show_pages', true ) );
-      
-      /**
-       * For developers: Show Theme Options UI Builder
-       *
-       * Run a filter and set to false if you want to hide the
-       * Theme Options UI page in the admin area of WordPress.
-       *
-       * @since     2.1
-       */
-      define( 'OT_SHOW_OPTIONS_UI', apply_filters( 'ot_show_options_ui', true ) );
-      
-      /**
-       * For developers: Show Settings Import
-       *
-       * Run a filter and set to false if you want to hide the
-       * Settings Import options on the Import page.
-       *
-       * @since     2.1
-       */
-      define( 'OT_SHOW_SETTINGS_IMPORT', apply_filters( 'ot_show_settings_import', true ) );
-      
-      /**
-       * For developers: Show Settings Export
-       *
-       * Run a filter and set to false if you want to hide the
-       * Settings Import options on the Import page.
-       *
-       * @since     2.1
-       */
-      define( 'OT_SHOW_SETTINGS_EXPORT', apply_filters( 'ot_show_settings_export', true ) );
-      
-      /**
-       * For developers: Show New Layout.
-       *
-       * Run a filter and set to false if you don't want to show the
-       * "New Layout" section at the top of the theme options page.
-       *
-       * @since     2.0.10
-       */
-      define( 'OT_SHOW_NEW_LAYOUT', apply_filters( 'ot_show_new_layout', true ) );
-      
-      /**
-       * For developers: Show Documentation
-       *
-       * Run a filter and set to false if you want to hide the Documentation.
-       *
-       * @since     2.1
-       */
-      define( 'OT_SHOW_DOCS', apply_filters( 'ot_show_docs', true ) );
-      
-      /**
-       * For developers: Custom Theme Option page
-       *
-       * Run a filter and set to false if you want to hide the OptionTree 
-       * Theme Option page and build your own.
-       *
-       * @since     2.1
-       */
-      define( 'OT_USE_THEME_OPTIONS', apply_filters( 'ot_use_theme_options', true ) );
-      
-      /**
-       * For developers: Meta Boxes.
-       *
-       * Run a filter and set to false to keep OptionTree from
-       * loading the meta box resources.
-       *
-       * @since     2.0
-       */
-      define( 'OT_META_BOXES', apply_filters( 'ot_meta_boxes', true ) );
-      
-      /**
-       * For developers: Allow Unfiltered HTML in all the textareas.
-       *
-       * Run a filter and set to true if you want all the
-       * users to be able to post anything in the textareas.
-       * WARNING: This opens a security hole for low level users
-       * to be able to post malicious scripts, you've been warned.
-       *
-       * @since     2.0
-       */
-      define( 'OT_ALLOW_UNFILTERED_HTML', apply_filters( 'ot_allow_unfiltered_html', false ) );
+			/**
+			 * For developers: Allow Unfiltered HTML in all the textareas.
+			 *
+			 * Run a filter and set to true if you want all the users to be
+			 * able to add script, style, and iframe tags in the textareas.
+			 * WARNING: This opens a security hole for low level users
+			 * to be able to post malicious scripts, you've been warned.
+			 *
+			 * If a user can already post `unfiltered_html` then the tags
+			 * above will be available to them without setting this to `true`.
+			 *
+			 * @since 2.0
+			 */
+			define( 'OT_ALLOW_UNFILTERED_HTML', apply_filters( 'ot_allow_unfiltered_html', false ) );
+
+			/**
+			 * For developers: Post Formats.
+			 *
+			 * Run a filter and set to true if you want OptionTree
+			 * to load meta boxes for post formats.
+			 *
+			 * @since 2.4.0
+			 */
+			define( 'OT_POST_FORMATS', apply_filters( 'ot_post_formats', false ) );
+
+			/**
+			 * Check if in theme mode.
+			 *
+			 * If OT_THEME_MODE and OT_CHILD_THEME_MODE is false, set the
+			 * directory path & URL like any other plugin. Otherwise, use
+			 * the parent or child themes root directory.
+			 *
+			 * @since 2.0
+			 */
+			if ( false === OT_THEME_MODE && false === OT_CHILD_THEME_MODE ) {
+				define( 'OT_DIR', plugin_dir_path( __FILE__ ) );
+				define( 'OT_URL', plugin_dir_url( __FILE__ ) );
+			} else {
+				if ( true === OT_CHILD_THEME_MODE ) {
+					$temp_path = explode( get_stylesheet(), str_replace( '\\', '/', dirname( __FILE__ ) ) );
+					$path      = ltrim( end( $temp_path ), '/' );
+					define( 'OT_DIR', trailingslashit( trailingslashit( get_stylesheet_directory() ) . $path ) );
+					define( 'OT_URL', trailingslashit( trailingslashit( get_stylesheet_directory_uri() ) . $path ) );
+				} else {
+					$temp_path = explode( get_template(), str_replace( '\\', '/', dirname( __FILE__ ) ) );
+					$path      = ltrim( end( $temp_path ), '/' );
+					define( 'OT_DIR', trailingslashit( trailingslashit( get_template_directory() ) . $path ) );
+					define( 'OT_URL', trailingslashit( trailingslashit( get_template_directory_uri() ) . $path ) );
+				}
+			}
+
+			/**
+			 * Template directory URI for the current theme.
+			 *
+			 * @since 2.1
+			 */
+			if ( true === OT_CHILD_THEME_MODE ) {
+				define( 'OT_THEME_URL', get_stylesheet_directory_uri() );
+			} else {
+				define( 'OT_THEME_URL', get_template_directory_uri() );
+			}
+		}
+
+		/**
+		 * Include admin files.
+		 *
+		 * These functions are included on admin pages only.
+		 *
+		 * @access private
+		 * @since  2.0
+		 */
+		private function admin_includes() {
+
+			// Exit early if we're not on an admin page.
+			if ( ! is_admin() ) {
+				return false;
+			}
+
+			// Global include files.
+			$files = array(
+				'ot-functions-admin',
+				'ot-functions-option-types',
+				'ot-functions-compat',
+				'class-ot-settings',
+			);
+
+			// Include the meta box api.
+			if ( true === OT_META_BOXES ) {
+				$files[] = 'class-ot-meta-box';
+			}
 
-      /**
-       * For developers: Post Formats.
-       *
-       * Run a filter and set to true if you want OptionTree 
-       * to load meta boxes for post formats.
-       *
-       * @since     2.4.0
-       */
-      define( 'OT_POST_FORMATS', apply_filters( 'ot_post_formats', false ) );
-      
-      /**
-       * Check if in theme mode.
-       *
-       * If OT_THEME_MODE and OT_CHILD_THEME_MODE is false, set the 
-       * directory path & URL like any other plugin. Otherwise, use 
-       * the parent or child themes root directory. 
-       *
-       * @since     2.0
-       */
-      if ( false == OT_THEME_MODE && false == OT_CHILD_THEME_MODE ) {
-        define( 'OT_DIR', plugin_dir_path( __FILE__ ) );
-        define( 'OT_URL', plugin_dir_url( __FILE__ ) );
-      } else {
-        if ( true == OT_CHILD_THEME_MODE ) {
-          $path = ltrim( end( @explode( get_stylesheet(), str_replace( '\\', '/', dirname( __FILE__ ) ) ) ), '/' );
-          define( 'OT_DIR', trailingslashit( trailingslashit( get_stylesheet_directory() ) . $path ) );
-          define( 'OT_URL', trailingslashit( trailingslashit( get_stylesheet_directory_uri() ) . $path ) );
-        } else {
-          $path = ltrim( end( @explode( get_template(), str_replace( '\\', '/', dirname( __FILE__ ) ) ) ), '/' );
-          define( 'OT_DIR', trailingslashit( trailingslashit( get_template_directory() ) . $path ) );
-          define( 'OT_URL', trailingslashit( trailingslashit( get_template_directory_uri() ) . $path ) );
-        }
-      }
-      
-      /**
-       * Template directory URI for the current theme.
-       *
-       * @since     2.1
-       */
-      if ( true == OT_CHILD_THEME_MODE ) {
-        define( 'OT_THEME_URL', get_stylesheet_directory_uri() );
-      } else {
-        define( 'OT_THEME_URL', get_template_directory_uri() );
-      }
-      
-    }
-    
-    /**
-     * Include admin files
-     *
-     * These functions are included on admin pages only.
-     *
-     * @return    void
-     *
-     * @access    private
-     * @since     2.0
-     */
-    private function admin_includes() {
-      
-      /* exit early if we're not on an admin page */
-      if ( ! is_admin() )
-        return false;
-      
-      /* global include files */
-      $files = array( 
-        'ot-functions-admin',
-        'ot-functions-option-types',
-        'ot-functions-compat',
-        'ot-settings-api'
-      );
-      
-      /* include the meta box api */
-      if ( OT_META_BOXES == true ) {
-        $files[] = 'ot-meta-box-api';
-      }
-      
-      /* include the post formats api */
-      if ( OT_META_BOXES == true && OT_POST_FORMATS == true ) {
-        $files[] = 'ot-post-formats-api';
-      }
-      
-      /* include the settings & docs pages */
-      if ( OT_SHOW_PAGES == true ) {
-        $files[] = 'ot-functions-settings-page';
-        $files[] = 'ot-functions-docs-page';
-      }
-      
-      /* include the cleanup api */
-      $files[] = 'ot-cleanup-api';
-      
-      /* require the files */
-      foreach ( $files as $file ) {
-        $this->load_file( OT_DIR . "includes" . DIRECTORY_SEPARATOR . "{$file}.php" );
-      }
-      
-      /* Registers the Theme Option page */
-      add_action( 'init', 'ot_register_theme_options_page' );
-      
-      /* Registers the Settings page */
-      if ( OT_SHOW_PAGES == true ) {
-        add_action( 'init', 'ot_register_settings_page' );
+			// Include the post formats api.
+			if ( true === OT_META_BOXES && true === OT_POST_FORMATS ) {
+				$files[] = 'class-ot-post-formats';
+			}
+
+			// Include the settings & docs pages.
+			if ( true === OT_SHOW_PAGES ) {
+				$files[] = 'ot-functions-settings-page';
+				$files[] = 'ot-functions-docs-page';
+			}
+
+			// Include the cleanup api.
+			$files[] = 'class-ot-cleanup';
+
+			// Require the files.
+			foreach ( $files as $file ) {
+				$this->load_file( OT_DIR . 'includes' . DIRECTORY_SEPARATOR . "{$file}.php" );
+			}
+
+			// Registers the Theme Option page.
+			add_action( 'init', 'ot_register_theme_options_page' );
+
+			// Registers the Settings page.
+			if ( true === OT_SHOW_PAGES ) {
+				add_action( 'init', 'ot_register_settings_page' );
+
+				// Global CSS.
+				add_action( 'admin_head', array( $this, 'global_admin_css' ) );
+			}
+		}
+
+		/**
+		 * Include front-end files.
+		 *
+		 * These functions are included on every page load
+		 * incase other plugins need to access them.
+		 *
+		 * @access private
+		 * @since  2.0
+		 */
+		private function includes() {
+
+			$files = array(
+				'ot-functions',
+				'ot-functions-deprecated',
+			);
+
+			// Require the files.
+			foreach ( $files as $file ) {
+				$this->load_file( OT_DIR . 'includes' . DIRECTORY_SEPARATOR . "{$file}.php" );
+			}
+		}
+
+		/**
+		 * Execute the WordPress Hooks.
+		 *
+		 * @access public
+		 * @since 2.0
+		 */
+		private function hooks() {
+
+			// Attempt to migrate the settings.
+			if ( function_exists( 'ot_maybe_migrate_settings' ) ) {
+				add_action( 'init', 'ot_maybe_migrate_settings', 1 );
+			}
+
+			// Attempt to migrate the Options.
+			if ( function_exists( 'ot_maybe_migrate_options' ) ) {
+				add_action( 'init', 'ot_maybe_migrate_options', 1 );
+			}
+
+			// Attempt to migrate the Layouts.
+			if ( function_exists( 'ot_maybe_migrate_layouts' ) ) {
+				add_action( 'init', 'ot_maybe_migrate_layouts', 1 );
+			}
+
+			// Load the Meta Box assets.
+			if ( true === OT_META_BOXES ) {
+
+				// Add scripts for metaboxes to post-new.php & post.php.
+				add_action( 'admin_print_scripts-post-new.php', 'ot_admin_scripts', 11 );
+				add_action( 'admin_print_scripts-post.php', 'ot_admin_scripts', 11 );
+
+				// Add styles for metaboxes to post-new.php & post.php.
+				add_action( 'admin_print_styles-post-new.php', 'ot_admin_styles', 11 );
+				add_action( 'admin_print_styles-post.php', 'ot_admin_styles', 11 );
+
+			}
+
+			// Adds the Theme Option page to the admin bar.
+			add_action( 'admin_bar_menu', 'ot_register_theme_options_admin_bar_menu', 999 );
+
+			// Prepares the after save do_action.
+			add_action( 'admin_init', 'ot_after_theme_options_save', 1 );
+
+			// default settings.
+			add_action( 'admin_init', 'ot_default_settings', 2 );
 
-        /* global CSS */
-        add_action( 'admin_head', array( $this, 'global_admin_css' ) );
-      }
-      
-    }
-    
-    /**
-     * Include front-end files
-     *
-     * These functions are included on every page load 
-     * incase other plugins need to access them.
-     *
-     * @return    void
-     *
-     * @access    private
-     * @since     2.0
-     */
-    private function includes() {
-    
-      $files = array( 
-        'ot-functions',
-        'ot-functions-deprecated'
-      );
+			// Import.
+			add_action( 'admin_init', 'ot_import', 4 );
+
+			// Export.
+			add_action( 'admin_init', 'ot_export', 5 );
+
+			// Save settings.
+			add_action( 'admin_init', 'ot_save_settings', 6 );
+
+			// Save layouts.
+			add_action( 'admin_init', 'ot_modify_layouts', 7 );
+
+			// Create media post.
+			add_action( 'admin_init', 'ot_create_media_post', 8 );
+
+			// Google Fonts front-end CSS.
+			add_action( 'wp_enqueue_scripts', 'ot_load_google_fonts_css', 1 );
+
+			// Dynamic front-end CSS.
+			add_action( 'wp_enqueue_scripts', 'ot_load_dynamic_css', 999 );
+
+			// Insert theme CSS dynamically.
+			add_action( 'ot_after_theme_options_save', 'ot_save_css' );
+
+			// AJAX call to create a new section.
+			add_action( 'wp_ajax_add_section', array( $this, 'add_section' ) );
+
+			// AJAX call to create a new setting.
+			add_action( 'wp_ajax_add_setting', array( $this, 'add_setting' ) );
+
+			// AJAX call to create a new contextual help.
+			add_action( 'wp_ajax_add_the_contextual_help', array( $this, 'add_the_contextual_help' ) );
+
+			// AJAX call to create a new choice.
+			add_action( 'wp_ajax_add_choice', array( $this, 'add_choice' ) );
 
-      /* require the files */
-      foreach ( $files as $file ) {
-        $this->load_file( OT_DIR . "includes" . DIRECTORY_SEPARATOR . "{$file}.php" );
-      }
-      
-    }
-    
-    /**
-     * Execute the WordPress Hooks
-     *
-     * @return    void
-     *
-     * @access    public
-     * @since     2.0
-     */
-    private function hooks() {
-      
-      // Attempt to migrate the settings
-      if ( function_exists( 'ot_maybe_migrate_settings' ) )
-        add_action( 'init', 'ot_maybe_migrate_settings', 1 );
-      
-      // Attempt to migrate the Options
-      if ( function_exists( 'ot_maybe_migrate_options' ) )
-        add_action( 'init', 'ot_maybe_migrate_options', 1 );
-      
-      // Attempt to migrate the Layouts
-      if ( function_exists( 'ot_maybe_migrate_layouts' ) )
-        add_action( 'init', 'ot_maybe_migrate_layouts', 1 );
+			// AJAX call to create a new list item setting.
+			add_action( 'wp_ajax_add_list_item_setting', array( $this, 'add_list_item_setting' ) );
+
+			// AJAX call to create a new layout.
+			add_action( 'wp_ajax_add_layout', array( $this, 'add_layout' ) );
+
+			// AJAX call to create a new list item.
+			add_action( 'wp_ajax_add_list_item', array( $this, 'add_list_item' ) );
+
+			// AJAX call to create a new social link.
+			add_action( 'wp_ajax_add_social_links', array( $this, 'add_social_links' ) );
+
+			// AJAX call to retrieve Google Font data.
+			add_action( 'wp_ajax_ot_google_font', array( $this, 'retrieve_google_font' ) );
+
+			// Adds the temporary hacktastic shortcode.
+			add_filter( 'media_view_settings', array( $this, 'shortcode' ), 10, 2 );
+
+			// AJAX update.
+			add_action( 'wp_ajax_gallery_update', array( $this, 'ajax_gallery_update' ) );
+
+			// Modify the media uploader button.
+			add_filter( 'gettext', array( $this, 'change_image_button' ), 10, 3 );
+		}
+
+		/**
+		 * Load a file.
+		 *
+		 * @access private
+		 * @since  2.0.15
+		 *
+		 * @param string $file Path to the file being included.
+		 */
+		private function load_file( $file ) {
+			include_once $file;
+		}
 
-      /* load the Meta Box assets */
-      if ( OT_META_BOXES == true ) {
-      
-        /* add scripts for metaboxes to post-new.php & post.php */
-        add_action( 'admin_print_scripts-post-new.php', 'ot_admin_scripts', 11 );
-        add_action( 'admin_print_scripts-post.php', 'ot_admin_scripts', 11 );
-              
-        /* add styles for metaboxes to post-new.php & post.php */
-        add_action( 'admin_print_styles-post-new.php', 'ot_admin_styles', 11 );
-        add_action( 'admin_print_styles-post.php', 'ot_admin_styles', 11 );
-      
-      }
-      
-      /* Adds the Theme Option page to the admin bar */
-      add_action( 'admin_bar_menu', 'ot_register_theme_options_admin_bar_menu', 999 );
-      
-      /* prepares the after save do_action */
-      add_action( 'admin_init', 'ot_after_theme_options_save', 1 );
-      
-      /* default settings */
-      add_action( 'admin_init', 'ot_default_settings', 2 );
-      
-      /* add xml to upload filetypes array */
-      add_action( 'admin_init', 'ot_add_xml_to_upload_filetypes', 3 );
-      
-      /* import */
-      add_action( 'admin_init', 'ot_import', 4 );
-      
-      /* export */
-      add_action( 'admin_init', 'ot_export', 5 );
-      
-      /* save settings */
-      add_action( 'admin_init', 'ot_save_settings', 6 );
-      
-      /* save layouts */
-      add_action( 'admin_init', 'ot_modify_layouts', 7 );
-      
-      /* create media post */
-      add_action( 'admin_init', 'ot_create_media_post', 8 );
+		/**
+		 * Adds CSS for the menu icon.
+		 */
+		public function global_admin_css() {
+			?>
+<style>
+	@font-face {
+		font-family: "option-tree-font";
+		src:url("<?php echo esc_url_raw( OT_URL ); ?>assets/fonts/option-tree-font.eot");
+		src:url("<?php echo esc_url_raw( OT_URL ); ?>assets/fonts/option-tree-font.eot?#iefix") format("embedded-opentype"),
+			url("<?php echo esc_url_raw( OT_URL ); ?>assets/fonts/option-tree-font.woff") format("woff"),
+			url("<?php echo esc_url_raw( OT_URL ); ?>assets/fonts/option-tree-font.ttf") format("truetype"),
+			url("<?php echo esc_url_raw( OT_URL ); ?>assets/fonts/option-tree-font.svg#option-tree-font") format("svg");
+		font-weight: normal;
+		font-style: normal;
+	}
+	#adminmenu #toplevel_page_ot-settings .menu-icon-generic div.wp-menu-image:before {
+		font: normal 20px/1 "option-tree-font" !important;
+		speak: none;
+		padding: 6px 0;
+		height: 34px;
+		width: 20px;
+		display: inline-block;
+		-webkit-font-smoothing: antialiased;
+		-moz-osx-font-smoothing: grayscale;
+		-webkit-transition: all .1s ease-in-out;
+		-moz-transition:    all .1s ease-in-out;
+		transition:         all .1s ease-in-out;
+	}
+	#adminmenu #toplevel_page_ot-settings .menu-icon-generic div.wp-menu-image:before {
+		content: "\e785";
+	}
+</style>
+			<?php
+		}
 
-      /* Google Fonts front-end CSS */
-      add_action( 'wp_enqueue_scripts', 'ot_load_google_fonts_css', 1 );
- 
-      /* dynamic front-end CSS */
-      add_action( 'wp_enqueue_scripts', 'ot_load_dynamic_css', 999 );
+		/**
+		 * AJAX utility function for adding a new section.
+		 */
+		public function add_section() {
+			check_ajax_referer( 'option_tree', 'nonce' );
+
+			$count  = isset( $_REQUEST['count'] ) ? absint( $_REQUEST['count'] ) : 0;
+			$output = ot_sections_view( ot_settings_id() . '[sections]', $count );
+
+			echo $output; // phpcs:ignore
+			wp_die();
+		}
 
-      /* insert theme CSS dynamically */
-      add_action( 'ot_after_theme_options_save', 'ot_save_css' );
-      
-      /* AJAX call to create a new section */
-      add_action( 'wp_ajax_add_section', array( $this, 'add_section' ) );
-      
-      /* AJAX call to create a new setting */
-      add_action( 'wp_ajax_add_setting', array( $this, 'add_setting' ) );
-      
-      /* AJAX call to create a new contextual help */
-      add_action( 'wp_ajax_add_the_contextual_help', array( $this, 'add_the_contextual_help' ) );
-      
-      /* AJAX call to create a new choice */
-      add_action( 'wp_ajax_add_choice', array( $this, 'add_choice' ) );
-      
-      /* AJAX call to create a new list item setting */
-      add_action( 'wp_ajax_add_list_item_setting', array( $this, 'add_list_item_setting' ) );
-      
-      /* AJAX call to create a new layout */
-      add_action( 'wp_ajax_add_layout', array( $this, 'add_layout' ) );
-      
-      /* AJAX call to create a new list item */
-      add_action( 'wp_ajax_add_list_item', array( $this, 'add_list_item' ) );
-      
-      /* AJAX call to create a new social link */
-      add_action( 'wp_ajax_add_social_links', array( $this, 'add_social_links' ) );
+		/**
+		 * AJAX utility function for adding a new setting.
+		 */
+		public function add_setting() {
+			check_ajax_referer( 'option_tree', 'nonce' );
+
+			$name   = isset( $_REQUEST['name'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['name'] ) ) : '';
+			$count  = isset( $_REQUEST['count'] ) ? absint( $_REQUEST['count'] ) : 0;
+			$output = ot_settings_view( $name, $count );
+
+			echo $output; // phpcs:ignore
+			wp_die();
+		}
+
+		/**
+		 * AJAX utility function for adding a new list item setting.
+		 */
+		public function add_list_item_setting() {
+			check_ajax_referer( 'option_tree', 'nonce' );
+
+			$name   = isset( $_REQUEST['name'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['name'] ) ) : '';
+			$count  = isset( $_REQUEST['count'] ) ? absint( $_REQUEST['count'] ) : 0;
+			$output = ot_settings_view( $name . '[settings]', $count );
+
+			echo $output; // phpcs:ignore
+			wp_die();
+		}
 
-      /* AJAX call to retrieve Google Font data */
-      add_action( 'wp_ajax_ot_google_font', array( $this, 'retrieve_google_font' ) );
-      
-      // Adds the temporary hacktastic shortcode
-      add_filter( 'media_view_settings', array( $this, 'shortcode' ), 10, 2 );
-    
-      // AJAX update
-      add_action( 'wp_ajax_gallery_update', array( $this, 'ajax_gallery_update' ) );
-      
-      /* Modify the media uploader button */
-      add_filter( 'gettext', array( $this, 'change_image_button' ), 10, 3 );
-      
-    }
-    
-    /**
-     * Load a file
-     *
-     * @return    void
-     *
-     * @access    private
-     * @since     2.0.15
-     */
-    private function load_file( $file ){
-      
-      include_once( $file );
-      
-    }
-    
-    /**
-     * Adds the global CSS to fix the menu icon.
-     */
-    public function global_admin_css() {
-      global $wp_version;
-      
-      $wp_38plus = version_compare( $wp_version, '3.8', '>=' ) ? true : false;
-      $fontsize = $wp_38plus ? '20px' : '16px';
-      $wp_38minus = '';
-      
-      if ( ! $wp_38plus ) {
-        $wp_38minus = '
-        #adminmenu #toplevel_page_ot-settings .menu-icon-generic div.wp-menu-image {
-          background: none;
-        }
-        #adminmenu #toplevel_page_ot-settings .menu-icon-generic div.wp-menu-image:before {
-          padding-left: 6px;
-        }';
-      }
+		/**
+		 * AJAX utility function for adding new contextual help content.
+		 */
+		public function add_the_contextual_help() {
+			check_ajax_referer( 'option_tree', 'nonce' );
+
+			$name   = isset( $_REQUEST['name'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['name'] ) ) : '';
+			$count  = isset( $_REQUEST['count'] ) ? absint( $_REQUEST['count'] ) : 0;
+			$output = ot_contextual_help_view( $name, $count );
+
+			echo $output; // phpcs:ignore
+			wp_die();
+		}
+
+		/**
+		 * AJAX utility function for adding a new choice.
+		 */
+		public function add_choice() {
+			check_ajax_referer( 'option_tree', 'nonce' );
+
+			$name   = isset( $_REQUEST['name'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['name'] ) ) : '';
+			$count  = isset( $_REQUEST['count'] ) ? absint( $_REQUEST['count'] ) : 0;
+			$output = ot_choices_view( $name, $count );
+
+			echo $output; // phpcs:ignore
+			wp_die();
+		}
 
-      echo '
-      <style>
-        @font-face {
-          font-family: "option-tree-font";
-          src:url("' . OT_URL . 'assets/fonts/option-tree-font.eot");
-          src:url("' . OT_URL . 'assets/fonts/option-tree-font.eot?#iefix") format("embedded-opentype"),
-            url("' . OT_URL . 'assets/fonts/option-tree-font.woff") format("woff"),
-            url("' . OT_URL . 'assets/fonts/option-tree-font.ttf") format("truetype"),
-            url("' . OT_URL . 'assets/fonts/option-tree-font.svg#option-tree-font") format("svg");
-          font-weight: normal;
-          font-style: normal;
-        }
-        #adminmenu #toplevel_page_ot-settings .menu-icon-generic div.wp-menu-image:before {
-          font: normal ' . $fontsize . '/1 "option-tree-font" !important;
-          speak: none;
-          padding: 6px 0;
-          height: 34px;
-          width: 20px;
-          display: inline-block;
-          -webkit-font-smoothing: antialiased;
-          -moz-osx-font-smoothing: grayscale;
-          -webkit-transition: all .1s ease-in-out;
-          -moz-transition:    all .1s ease-in-out;
-          transition:         all .1s ease-in-out;
-        }
-        #adminmenu #toplevel_page_ot-settings .menu-icon-generic div.wp-menu-image:before {
-          content: "\e785";
-        }'  . $wp_38minus . '
-      </style>
-      ';
-    }
-    
-    /**
-     * AJAX utility function for adding a new section.
-     */
-    public function add_section() {
-      echo ot_sections_view( ot_settings_id() . '[sections]', $_REQUEST['count'] );
-      die();
-    }
-    
-    /**
-     * AJAX utility function for adding a new setting.
-     */
-    public function add_setting() {
-      echo ot_settings_view( $_REQUEST['name'], $_REQUEST['count'] );
-      die();
-    }
-    
-    /**
-     * AJAX utility function for adding a new list item setting.
-     */
-    public function add_list_item_setting() {
-      echo ot_settings_view( $_REQUEST['name'] . '[settings]', $_REQUEST['count'] );
-      die();
-    }
-    
-    /**
-     * AJAX utility function for adding new contextual help content.
-     */
-    public function add_the_contextual_help() {
-      echo ot_contextual_help_view( $_REQUEST['name'], $_REQUEST['count'] );
-      die();
-    }
-    
-    /**
-     * AJAX utility function for adding a new choice.
-     */
-    public function add_choice() {
-      echo ot_choices_view( $_REQUEST['name'], $_REQUEST['count'] );
-      die();
-    }
-    
-    /**
-     * AJAX utility function for adding a new layout.
-     */
-    public function add_layout() {
-      echo ot_layout_view( $_REQUEST['count'] );
-      die();
-    }
-    
-    /**
-     * AJAX utility function for adding a new list item.
-     */
-    public function add_list_item() {
-      check_ajax_referer( 'option_tree', 'nonce' );
-      ot_list_item_view( $_REQUEST['name'], $_REQUEST['count'], array(), $_REQUEST['post_id'], $_REQUEST['get_option'], unserialize( ot_decode( $_REQUEST['settings'] ) ), $_REQUEST['type'] );
-      die();
-    }
-    
-    /**
-     * AJAX utility function for adding a new social link.
-     */
-    public function add_social_links() {
-      check_ajax_referer( 'option_tree', 'nonce' );
-      ot_social_links_view( $_REQUEST['name'], $_REQUEST['count'], array(), $_REQUEST['post_id'], $_REQUEST['get_option'], unserialize( ot_decode( $_REQUEST['settings'] ) ), $_REQUEST['type'] );
-      die();
-    }
-    
-    /**
-     * Fake the gallery shortcode
-     *
-     * The JS takes over and creates the actual shortcode with 
-     * the real attachment IDs on the fly. Here we just need to 
-     * pass in the post ID to get the ball rolling.
-     *
-     * @param     array     The current settings
-     * @param     object    The post object
-     * @return    array
-     *
-     * @access    public
-     * @since     2.2.0
-     */
-    public function shortcode( $settings, $post ) {
-      global $pagenow;
+		/**
+		 * AJAX utility function for adding a new layout.
+		 */
+		public function add_layout() {
+			check_ajax_referer( 'option_tree', 'nonce' );
+
+			$count  = isset( $_REQUEST['count'] ) ? absint( $_REQUEST['count'] ) : 0;
+			$output = ot_layout_view( $count );
+
+			echo $output; // phpcs:ignore
+			wp_die();
+		}
+
+		/**
+		 * AJAX utility function for adding a new list item.
+		 */
+		public function add_list_item() {
+			check_ajax_referer( 'option_tree', 'nonce' );
+
+			$name       = isset( $_REQUEST['name'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['name'] ) ) : '';
+			$count      = isset( $_REQUEST['count'] ) ? absint( $_REQUEST['count'] ) : 0;
+			$post_id    = isset( $_REQUEST['post_id'] ) ? absint( $_REQUEST['post_id'] ) : 0;
+			$get_option = isset( $_REQUEST['get_option'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['get_option'] ) ) : '';
+			$type       = isset( $_REQUEST['type'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['type'] ) ) : '';
+			$settings   = isset( $_REQUEST['settings'] ) ? ot_decode( sanitize_text_field( wp_unslash( $_REQUEST['settings'] ) ) ) : array();
+
+			ot_list_item_view( $name, $count, array(), $post_id, $get_option, $settings, $type );
+			wp_die();
+		}
+
+		/**
+		 * AJAX utility function for adding a new social link.
+		 */
+		public function add_social_links() {
+			check_ajax_referer( 'option_tree', 'nonce' );
+
+			$name       = isset( $_REQUEST['name'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['name'] ) ) : '';
+			$count      = isset( $_REQUEST['count'] ) ? absint( $_REQUEST['count'] ) : 0;
+			$post_id    = isset( $_REQUEST['post_id'] ) ? absint( $_REQUEST['post_id'] ) : 0;
+			$get_option = isset( $_REQUEST['get_option'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['get_option'] ) ) : '';
+			$type       = isset( $_REQUEST['type'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['type'] ) ) : '';
+			$settings   = isset( $_REQUEST['settings'] ) ? ot_decode( sanitize_text_field( wp_unslash( $_REQUEST['settings'] ) ) ) : array();
+
+			ot_social_links_view( $name, $count, array(), $post_id, $get_option, $settings, $type );
+			wp_die();
+		}
+
+		/**
+		 * Fake the gallery shortcode.
+		 *
+		 * The JS takes over and creates the actual shortcode with
+		 * the real attachment IDs on the fly. Here we just need to
+		 * pass in the post ID to get the ball rolling.
+		 *
+		 * @access public
+		 * @since  2.2.0
+		 *
+		 * @param  array  $settings The current settings.
+		 * @param  object $post     The post object.
+		 * @return array
+		 */
+		public function shortcode( $settings, $post ) {
+			global $pagenow;
+
+			if ( in_array( $pagenow, array( 'upload.php', 'customize.php' ), true ) ) {
+				return $settings;
+			}
+
+			// Set the OptionTree post ID.
+			if ( ! is_object( $post ) ) {
+				$post_id = isset( $_GET['post'] ) ? absint( $_GET['post'] ) : ( isset( $_GET['post_ID'] ) ? absint( $_GET['post_ID'] ) : 0 ); // phpcs:ignore
+				if ( 0 >= $post_id && function_exists( 'ot_get_media_post_ID' ) ) {
+					$post_id = ot_get_media_post_ID();
+				}
+				$settings['post']['id'] = $post_id;
+			}
+
+			// No ID return settings.
+			if ( 0 >= $settings['post']['id'] ) {
+				return $settings;
+			}
+
+			// Set the fake shortcode.
+			$settings['ot_gallery'] = array( 'shortcode' => "[gallery id='{$settings['post']['id']}']" );
+
+			// Return settings.
+			return $settings;
+		}
 
-      if ( in_array( $pagenow, array( 'upload.php', 'customize.php' ) ) ) {
-        return $settings;
-      }
+		/**
+		 * AJAX to generate HTML for a list of gallery images.
+		 *
+		 * @access public
+		 * @since  2.2.0
+		 */
+		public function ajax_gallery_update() {
+			check_ajax_referer( 'option_tree', 'nonce' );
+
+			if ( ! empty( $_POST['ids'] ) && is_array( $_POST['ids'] ) ) {
+
+				$html = '';
+				$ids  = array_filter( $_POST['ids'], 'absint' ); // phpcs:ignore
+
+				foreach ( $ids as $id ) {
+
+					$thumbnail = wp_get_attachment_image_src( $id, 'thumbnail' );
 
-      // Set the OptionTree post ID
-      if ( ! is_object( $post ) ) {
-        $post_id = isset( $_GET['post'] ) ? $_GET['post'] : ( isset( $_GET['post_ID'] ) ? $_GET['post_ID'] : 0 );
-        if ( $post_id == 0 && function_exists( 'ot_get_media_post_ID' ) ) {
-          $post_id = ot_get_media_post_ID();
-        }
-        $settings['post']['id'] = $post_id;
-      }
-      
-      // No ID return settings
-      if ( $settings['post']['id'] == 0 )
-        return $settings;
-  
-      // Set the fake shortcode
-      $settings['ot_gallery'] = array( 'shortcode' => "[gallery id='{$settings['post']['id']}']" );
-      
-      // Return settings
-      return $settings;
-      
-    }
-    
-    /**
-     * Returns the AJAX images
-     *
-     * @return    string
-     *
-     * @access    public
-     * @since     2.2.0
-     */
-    public function ajax_gallery_update() {
-    
-      if ( ! empty( $_POST['ids'] ) )  {
-        
-        $return = '';
-        
-        foreach( $_POST['ids'] as $id ) {
-        
-          $thumbnail = wp_get_attachment_image_src( $id, 'thumbnail' );
-          
-          $return .= '<li><img  src="' . $thumbnail[0] . '" width="75" height="75" /></li>';
-          
-        }
-        
-        echo $return;
-        exit();
-      
-      }
-      
-    }
+					$html .= '<li><img  src="' . esc_url_raw( $thumbnail[0] ) . '" width="75" height="75" /></li>';
+				}
+
+				echo $html; // phpcs:ignore
+			}
+
+			wp_die();
+		}
+
+		/**
+		 * The JSON encoded Google fonts data, or false if it cannot be encoded.
+		 *
+		 * @access public
+		 * @since  2.5.0
+		 */
+		public function retrieve_google_font() {
+			check_ajax_referer( 'option_tree', 'nonce' );
+
+			if ( isset( $_POST['field_id'], $_POST['family'] ) ) {
+
+				ot_fetch_google_fonts();
 
-    /**
-     * Returns a JSON encoded Google fonts array.
-     *
-     * @return    array
-     *
-     * @access    public
-     * @since     2.5.0
-     */
-    public function retrieve_google_font() {
+				$field_id = isset( $_POST['field_id'] ) ? sanitize_text_field( wp_unslash( $_POST['field_id'] ) ) : '';
+				$family   = isset( $_POST['family'] ) ? sanitize_text_field( wp_unslash( $_POST['family'] ) ) : '';
+				$html     = wp_json_encode(
+					array(
+						'variants' => ot_recognized_google_font_variants( $field_id, $family ),
+						'subsets'  => ot_recognized_google_font_subsets( $field_id, $family ),
+					)
+				);
 
-      if ( isset( $_POST['field_id'], $_POST['family'] ) ) {
-        
-        ot_fetch_google_fonts();
-        
-        echo json_encode( array(
-          'variants' => ot_recognized_google_font_variants( $_POST['field_id'], $_POST['family'] ),
-          'subsets'  => ot_recognized_google_font_subsets( $_POST['field_id'], $_POST['family'] )
-        ) );
-        exit();
+				echo $html; // phpcs:ignore
+			}
 
-      }
+			wp_die();
+		}
 
-    }
-    
-    /**
-     * Filters the media uploader button.
-     *
-     * @return    string
-     *
-     * @access    public
-     * @since     2.1
-     */
-    public function change_image_button( $translation, $text, $domain ) {
-      global $pagenow;
-    
-      if ( $pagenow == apply_filters( 'ot_theme_options_parent_slug', 'themes.php' ) && 'default' == $domain && 'Insert into post' == $text ) {
-        
-        // Once is enough.
-        remove_filter( 'gettext', array( $this, 'ot_change_image_button' ) );
-        return apply_filters( 'ot_upload_text', __( 'Send to OptionTree', 'option-tree' ) );
-        
-      }
-      
-      return $translation;
-      
-    }
-    
-    
-  }
-  
-  /**
-   * Instantiate the OptionTree loader class.
-   *
-   * @since     2.0
-   */
-  $ot_loader = new OT_Loader();
+		/**
+		 * Filters the media uploader button.
+		 *
+		 * @access public
+		 * @since  2.1
+		 *
+		 * @param string $translation Translated text.
+		 * @param string $text        Text to translate.
+		 * @param string $domain      Text domain. Unique identifier for retrieving translated strings.
+		 *
+		 * @return string
+		 */
+		public function change_image_button( $translation, $text, $domain ) {
+			global $pagenow;
+
+			if ( apply_filters( 'ot_theme_options_parent_slug', 'themes.php' ) === $pagenow && 'default' === $domain && 'Insert into post' === $text ) {
 
-}
+				// Once is enough.
+				remove_filter( 'gettext', array( $this, 'ot_change_image_button' ) );
+				return apply_filters( 'ot_upload_text', esc_html__( 'Send to OptionTree', 'option-tree' ) );
+
+			}
 
-/* End of file ot-loader.php */
-/* Location: ./ot-loader.php */
+			return $translation;
+		}
+	}
+
+	/**
+	 * Instantiate the OptionTree loader class.
+	 *
+	 * @since 2.0
+	 */
+	new OT_Loader();
+}