<?php

/**

 * Plugin Name: OptionTree

 * Plugin URI:  http://wp.envato.com

 * Description: Theme Options UI Builder for WordPress. A simple way to create & save Theme Options and Meta Boxes for free or premium themes.

 * Version:     2.1.4

 * Author:      Derek Herman

 * Author URI:  http://valendesigns.com

 * License:     GPLv3

 */

/**

 * 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' ) ) {

  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/' . 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

       */

      define( 'OT_LANG_DIR', dirname( plugin_basename( __FILE__ ) ) . '/languages/' );

      /* 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 . 'theme-mode' );

      }

    }

    /** 

     * 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();

    }

    /**

     * 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', '2.1.4' );

      /**

       * 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: 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: Hide 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: Hide 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 ) );

      /**

       * 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 ) {

          define( 'OT_DIR', trailingslashit( get_stylesheet_directory() ) . trailingslashit( basename( dirname( __FILE__ ) ) ) );

          define( 'OT_URL', trailingslashit( get_stylesheet_directory_uri() ) . trailingslashit( basename( dirname( __FILE__ ) ) ) );

        } else {

          define( 'OT_DIR', trailingslashit( get_template_directory() ) . trailingslashit( basename( dirname( __FILE__ ) ) ) );

          define( 'OT_URL', trailingslashit( get_template_directory_uri() ) . trailingslashit( basename( dirname( __FILE__ ) ) ) );

        }

      }

      /**

       * 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 settings & docs pages */

      if ( OT_SHOW_PAGES == true ) {

        $files[] = 'ot-functions-settings-page';

        $files[] = 'ot-functions-docs-page';

      }

      /* require the files */

      foreach ( $files as $file ) {

        $this->load_file( OT_DIR . "includes/{$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 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'

      );

      /* require the files */

      foreach ( $files as $file ) {

        $this->load_file( OT_DIR . "includes/{$file}.php" );

      }

    }

    /**

     * Execute the WordPress Hooks

     *

     * @return    void

     *

     * @access    public

     * @since     2.0

     */

    private function hooks() {

      /* 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 );

      /* global CSS */

      add_action( 'admin_head', array( $this, 'global_admin_css' ) );

      /* 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' ) );

      /* 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' ) );

      /* Modify the media uploader button */

      add_filter( 'gettext', array( $this, 'change_image_button' ), 10, 3 );

    }

    /**