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<?php
/**
 * WordPress Customize Manager classes
 *
 * @package WordPress
 * @subpackage Customize
 * @since 3.4.0
 */
/**
 * Customize Manager class.
 *
 * Bootstraps the Customize experience on the server-side.
 *
 * Sets up the theme-switching process if a theme other than the active one is
 * being previewed and customized.
 *
 * Serves as a factory for Customize Controls and Settings, and
 * instantiates default Customize Controls and Settings.
 *
 * @since 3.4.0
 */
final class WP_Customize_Manager {
    /**
     * An instance of the theme being previewed.
     *
     * @since 3.4.0
     * @access protected
     * @var WP_Theme
     */
    protected $theme;
    /**
     * The directory name of the previously active theme (within the theme_root).
     *
     * @since 3.4.0
     * @access protected
     * @var string
     */
    protected $original_stylesheet;
    /**
     * Whether this is a Customizer pageload.
     *
     * @since 3.4.0
     * @access protected
     * @var bool
     */
    protected $previewing = false;
    /**
     * Methods and properties dealing with managing widgets in the Customizer.
     *
     * @since 3.9.0
     * @access public
     * @var WP_Customize_Widgets
     */
    public $widgets;
    /**
     * Methods and properties dealing with managing nav menus in the Customizer.
     *
     * @since 4.3.0
     * @access public
     * @var WP_Customize_Nav_Menus
     */
    public $nav_menus;
    /**
     * Registered instances of WP_Customize_Setting.
     *
     * @since 3.4.0
     * @access protected
     * @var array
     */
    protected $settings = array();
    /**
     * Sorted top-level instances of WP_Customize_Panel and WP_Customize_Section.
     *
     * @since 4.0.0
     * @access protected
     * @var array
     */
    protected $containers = array();
    /**
     * Registered instances of WP_Customize_Panel.
     *
     * @since 4.0.0
     * @access protected
     * @var array
     */
    protected $panels = array();
    /**
     * Registered instances of WP_Customize_Section.
     *
     * @since 3.4.0
     * @access protected
     * @var array
     */
    protected $sections = array();
    /**
     * Registered instances of WP_Customize_Control.
     *
     * @since 3.4.0
     * @access protected
     * @var array
     */
    protected $controls = array();
    /**
     * Return value of check_ajax_referer() in customize_preview_init() method.
     *
     * @since 3.5.0
     * @access protected
     * @var false|int
     */
    protected $nonce_tick;
    /**
     * Panel types that may be rendered from JS templates.
     *
     * @since 4.3.0
     * @access protected
     * @var array
     */
    protected $registered_panel_types = array();
    /**
     * Section types that may be rendered from JS templates.
     *
     * @since 4.3.0
     * @access protected
     * @var array
     */
    protected $registered_section_types = array();
    /**
     * Control types that may be rendered from JS templates.
     *
     * @since 4.1.0
     * @access protected
     * @var array
     */
    protected $registered_control_types = array();
    /**
     * Initial URL being previewed.
     *
     * @since 4.4.0
     * @access protected
     * @var string
     */
    protected $preview_url;
    /**
     * URL to link the user to when closing the Customizer.
     *
     * @since 4.4.0
     * @access protected
     * @var string
     */
    protected $return_url;
    /**
     * Mapping of 'panel', 'section', 'control' to the ID which should be autofocused.
     *
     * @since 4.4.0
     * @access protected
     * @var array
     */
    protected $autofocus = array();
    /**
     * Unsanitized values for Customize Settings parsed from $_POST['customized'].
     *
     * @var array
     */
    private $_post_values;
    /**
     * Constructor.
     *
     * @since 3.4.0
     */
    public function __construct() {
        require_once( ABSPATH . WPINC . '/class-wp-customize-setting.php' );
        require_once( ABSPATH . WPINC . '/class-wp-customize-panel.php' );
        require_once( ABSPATH . WPINC . '/class-wp-customize-section.php' );
        require_once( ABSPATH . WPINC . '/class-wp-customize-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-color-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-media-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-upload-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-image-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-background-image-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-cropped-image-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-site-icon-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-header-image-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-theme-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-widget-area-customize-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-widget-form-customize-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-item-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-location-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-name-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-auto-add-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-new-menu-control.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-nav-menus-panel.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-themes-section.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-sidebar-section.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-section.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-new-menu-section.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-filter-setting.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-header-image-setting.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-background-image-setting.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-item-setting.php' );
        require_once( ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-setting.php' );
        /**
         * Filter the core Customizer components to load.
         *
         * This allows Core components to be excluded from being instantiated by
         * filtering them out of the array. Note that this filter generally runs
         * during the <code>plugins_loaded</code> action, so it cannot be added
         * in a theme.
         *
         * @since 4.4.0
         *
         * @see WP_Customize_Manager::__construct()
         *
         * @param array                $components List of core components to load.
         * @param WP_Customize_Manager $this       WP_Customize_Manager instance.
         */
        $components = apply_filters( 'customize_loaded_components', array( 'widgets', 'nav_menus' ), $this );
        if ( in_array( 'widgets', $components ) ) {
            require_once( ABSPATH . WPINC . '/class-wp-customize-widgets.php' );
            $this->widgets = new WP_Customize_Widgets( $this );
        }
        if ( in_array( 'nav_menus', $components ) ) {
            require_once( ABSPATH . WPINC . '/class-wp-customize-nav-menus.php' );
            $this->nav_menus = new WP_Customize_Nav_Menus( $this );
        }
        add_filter( 'wp_die_handler', array( $this, 'wp_die_handler' ) );
        add_action( 'setup_theme', array( $this, 'setup_theme' ) );
        add_action( 'wp_loaded',   array( $this, 'wp_loaded' ) );
        // Run wp_redirect_status late to make sure we override the status last.
        add_action( 'wp_redirect_status', array( $this, 'wp_redirect_status' ), 1000 );
        // Do not spawn cron (especially the alternate cron) while running the Customizer.
        remove_action( 'init', 'wp_cron' );
        // Do not run update checks when rendering the controls.
        remove_action( 'admin_init', '_maybe_update_core' );
        remove_action( 'admin_init', '_maybe_update_plugins' );
        remove_action( 'admin_init', '_maybe_update_themes' );
        add_action( 'wp_ajax_customize_save',           array( $this, 'save' ) );
        add_action( 'wp_ajax_customize_refresh_nonces', array( $this, 'refresh_nonces' ) );
        add_action( 'customize_register',                 array( $this, 'register_controls' ) );
        add_action( 'customize_register',                 array( $this, 'register_dynamic_settings' ), 11 ); // allow code to create settings first
        add_action( 'customize_controls_init',            array( $this, 'prepare_controls' ) );
        add_action( 'customize_controls_enqueue_scripts', array( $this, 'enqueue_control_scripts' ) );
        // Render Panel, Section, and Control templates.
        add_action( 'customize_controls_print_footer_scripts', array( $this, 'render_panel_templates' ), 1 );
        add_action( 'customize_controls_print_footer_scripts', array( $this, 'render_section_templates' ), 1 );
        add_action( 'customize_controls_print_footer_scripts', array( $this, 'render_control_templates' ), 1 );
        // Export the settings to JS via the _wpCustomizeSettings variable.
        add_action( 'customize_controls_print_footer_scripts', array( $this, 'customize_pane_settings' ), 1000 );
    }
    /**
     * Return true if it's an AJAX request.
     *
     * @since 3.4.0
     * @since 4.2.0 Added `$action` param.
     * @access public
     *
     * @param string|null $action Whether the supplied AJAX action is being run.
     * @return bool True if it's an AJAX request, false otherwise.
     */
    public function doing_ajax( $action = null ) {
        $doing_ajax = ( defined( 'DOING_AJAX' ) && DOING_AJAX );
        if ( ! $doing_ajax ) {
            return false;
        }
        if ( ! $action ) {
            return true;
        } else {
            /*
             * Note: we can't just use doing_action( "wp_ajax_{$action}" ) because we need
             * to check before admin-ajax.php gets to that point.
             */
            return isset( $_REQUEST['action'] ) && wp_unslash( $_REQUEST['action'] ) === $action;
        }
    }
    /**
     * Custom wp_die wrapper. Returns either the standard message for UI
     * or the AJAX message.
     *
     * @since 3.4.0
     *
     * @param mixed $ajax_message AJAX return
     * @param mixed $message UI message
     */
    protected function wp_die( $ajax_message, $message = null ) {
        if ( $this->doing_ajax() || isset( $_POST['customized'] ) ) {
            wp_die( $ajax_message );
        }
        if ( ! $message ) {
            $message = __( 'Cheatin&#8217; uh?' );
        }
        wp_die( $message );
    }
    /**
     * Return the AJAX wp_die() handler if it's a customized request.
     *
     * @since 3.4.0
     *
     * @return string
     */
    public function wp_die_handler() {
        if ( $this->doing_ajax() || isset( $_POST['customized'] ) ) {
            return '_ajax_wp_die_handler';
        }
        return '_default_wp_die_handler';
    }
    /**
     * Start preview and customize theme.
     *
     * Check if customize query variable exist. Init filters to filter the current theme.
     *
     * @since 3.4.0
     */
    public function setup_theme() {
        send_origin_headers();
        $doing_ajax_or_is_customized = ( $this->doing_ajax() || isset( $_POST['customized'] ) );
        if ( is_admin() && ! $doing_ajax_or_is_customized ) {
            auth_redirect();
        } elseif ( $doing_ajax_or_is_customized && ! is_user_logged_in() ) {
            $this->wp_die( 0, __( 'You must be logged in to complete this action.' ) );
        }
        show_admin_bar( false );
        if ( ! current_user_can( 'customize' ) ) {
            $this->wp_die( -1, __( 'You are not allowed to customize the appearance of this site.' ) );
        }
        $this->original_stylesheet = get_stylesheet();
        $this->theme = wp_get_theme( isset( $_REQUEST['theme'] ) ? $_REQUEST['theme'] : null );
        if ( $this->is_theme_active() ) {
            // Once the theme is loaded, we'll validate it.
            add_action( 'after_setup_theme', array( $this, 'after_setup_theme' ) );
        } else {
            // If the requested theme is not the active theme and the user doesn't have the
            // switch_themes cap, bail.
            if ( ! current_user_can( 'switch_themes' ) ) {
                $this->wp_die( -1, __( 'You are not allowed to edit theme options on this site.' ) );
            }
            // If the theme has errors while loading, bail.
            if ( $this->theme()->errors() ) {
                $this->wp_die( -1, $this->theme()->errors()->get_error_message() );
            }
            // If the theme isn't allowed per multisite settings, bail.
            if ( ! $this->theme()->is_allowed() ) {
                $this->wp_die( -1, __( 'The requested theme does not exist.' ) );
            }
        }
        $this->start_previewing_theme();
    }
    /**
     * Callback to validate a theme once it is loaded
     *
     * @since 3.4.0
     */
    public function after_setup_theme() {
        $doing_ajax_or_is_customized = ( $this->doing_ajax() || isset( $_SERVER['customized'] ) );
        if ( ! $doing_ajax_or_is_customized && ! validate_current_theme() ) {
            wp_redirect( 'themes.php?broken=true' );
            exit;
        }
    }
    /**
     * If the theme to be previewed isn't the active theme, add filter callbacks
     * to swap it out at runtime.
     *
     * @since 3.4.0
     */
    public function start_previewing_theme() {
        // Bail if we're already previewing.
        if ( $this->is_preview() ) {
            return;
        }
        $this->previewing = true;
        if ( ! $this->is_theme_active() ) {
            add_filter( 'template', array( $this, 'get_template' ) );
            add_filter( 'stylesheet', array( $this, 'get_stylesheet' ) );
            add_filter( 'pre_option_current_theme', array( $this, 'current_theme' ) );
            // @link: https://core.trac.wordpress.org/ticket/20027
            add_filter( 'pre_option_stylesheet', array( $this, 'get_stylesheet' ) );
            add_filter( 'pre_option_template', array( $this, 'get_template' ) );
            // Handle custom theme roots.
            add_filter( 'pre_option_stylesheet_root', array( $this, 'get_stylesheet_root' ) );
            add_filter( 'pre_option_template_root', array( $this, 'get_template_root' ) );
        }
        /**
         * Fires once the Customizer theme preview has started.
         *
         * @since 3.4.0
         *
         * @param WP_Customize_Manager $this WP_Customize_Manager instance.
         */
        do_action( 'start_previewing_theme', $this );
    }
    /**
     * Stop previewing the selected theme.
     *
     * Removes filters to change the current theme.
     *
     * @since 3.4.0
     */
    public function stop_previewing_theme() {
        if ( ! $this->is_preview() ) {
            return;
        }
        $this->previewing = false;
        if ( ! $this->is_theme_active() ) {
            remove_filter( 'template', array( $this, 'get_template' ) );
            remove_filter( 'stylesheet', array( $this, 'get_stylesheet' ) );
            remove_filter( 'pre_option_current_theme', array( $this, 'current_theme' ) );
            // @link: https://core.trac.wordpress.org/ticket/20027
            remove_filter( 'pre_option_stylesheet', array( $this, 'get_stylesheet' ) );
            remove_filter( 'pre_option_template', array( $this, 'get_template' ) );
            // Handle custom theme roots.
            remove_filter( 'pre_option_stylesheet_root', array( $this, 'get_stylesheet_root' ) );
            remove_filter( 'pre_option_template_root', array( $this, 'get_template_root' ) );
        }
        /**
         * Fires once the Customizer theme preview has stopped.
         *
         * @since 3.4.0
         *
         * @param WP_Customize_Manager $this WP_Customize_Manager instance.
         */
        do_action( 'stop_previewing_theme', $this );
    }
    /**
     * Get the theme being customized.
     *
     * @since 3.4.0
     *
     * @return WP_Theme
     */
    public function theme() {
        if ( ! $this->theme ) {
            $this->theme = wp_get_theme();
        }
        return $this->theme;
    }
    /**
     * Get the registered settings.
     *
     * @since 3.4.0
     *
     * @return array
     */
    public function settings() {
        return $this->settings;
    }
    /**
     * Get the registered controls.
     *
     * @since 3.4.0
     *
     * @return array
     */
    public function controls() {
        return $this->controls;
    }
    /**
     * Get the registered containers.
     *
     * @since 4.0.0
     *
     * @return array
     */
    public function containers() {
        return $this->containers;
    }
    /**
     * Get the registered sections.
     *
     * @since 3.4.0
     *
     * @return array
     */
    public function sections() {
        return $this->sections;
    }
    /**
     * Get the registered panels.
     *
     * @since 4.0.0
     * @access public
     *
     * @return array Panels.
     */
    public function panels() {
        return $this->panels;
    }
    /**
     * Checks if the current theme is active.
     *
     * @since 3.4.0
     *
     * @return bool
     */
    public function is_theme_active() {
        return $this->get_stylesheet() == $this->original_stylesheet;
    }
    /**
     * Register styles/scripts and initialize the preview of each setting
     *
     * @since 3.4.0
     */
    public function wp_loaded() {
        /**
         * Fires once WordPress has loaded, allowing scripts and styles to be initialized.
         *
         * @since 3.4.0
         *
         * @param WP_Customize_Manager $this WP_Customize_Manager instance.
         */
        do_action( 'customize_register', $this );
        if ( $this->is_preview() && ! is_admin() )
            $this->customize_preview_init();
    }
    /**
     * Prevents AJAX requests from following redirects when previewing a theme
     * by issuing a 200 response instead of a 30x.
     *
     * Instead, the JS will sniff out the location header.
     *
     * @since 3.4.0
     *
     * @param $status
     * @return int
     */
    public function wp_redirect_status( $status ) {
        if ( $this->is_preview() && ! is_admin() )
            return 200;
        return $status;
    }
    /**
     * Parse the incoming $_POST['customized'] JSON data and store the unsanitized
     * settings for subsequent post_value() lookups.
     *
     * @since 4.1.1
     *
     * @return array
     */
    public function unsanitized_post_values() {
        if ( ! isset( $this->_post_values ) ) {
            if ( isset( $_POST['customized'] ) ) {
                $this->_post_values = json_decode( wp_unslash( $_POST['customized'] ), true );
            }
            if ( empty( $this->_post_values ) ) { // if not isset or if JSON error
                $this->_post_values = array();
            }
        }
        if ( empty( $this->_post_values ) ) {
            return array();
        } else {
            return $this->_post_values;
        }
    }
    /**
     * Return the sanitized value for a given setting from the request's POST data.
     *
     * @since 3.4.0
     * @since 4.1.1 Introduced 'default' parameter.
     *
     * @param WP_Customize_Setting $setting A WP_Customize_Setting derived object
     * @param mixed $default value returned $setting has no post value (added in 4.2.0).
     * @return string|mixed $post_value Sanitized value or the $default provided
     */
    public function post_value( $setting, $default = null ) {
        $post_values = $this->unsanitized_post_values();
        if ( array_key_exists( $setting->id, $post_values ) ) {
            return $setting->sanitize( $post_values[ $setting->id ] );
        } else {
            return $default;
        }
    }
    /**
     * Override a setting's (unsanitized) value as found in any incoming $_POST['customized'].
     *
     * @since 4.2.0
     * @access public
     *
     * @param string $setting_id ID for the WP_Customize_Setting instance.
     * @param mixed  $value      Post value.
     */
    public function set_post_value( $setting_id, $value ) {
        $this->unsanitized_post_values();
        $this->_post_values[ $setting_id ] = $value;
        /**
         * Announce when a specific setting's unsanitized post value has been set.
         *
         * Fires when the {@see WP_Customize_Manager::set_post_value()} method is called.
         *
         * The dynamic portion of the hook name, `$setting_id`, refers to the setting ID.
         *
         * @since 4.4.0
         *
         * @param mixed                $value Unsanitized setting post value.
         * @param WP_Customize_Manager $this  WP_Customize_Manager instance.
         */
        do_action( "customize_post_value_set_{$setting_id}", $value, $this );
        /**
         * Announce when any setting's unsanitized post value has been set.
         *
         * Fires when the {@see WP_Customize_Manager::set_post_value()} method is called.
         *
         * This is useful for <code>WP_Customize_Setting</code> instances to watch
         * in order to update a cached previewed value.
         *
         * @since 4.4.0
         *
         * @param string               $setting_id Setting ID.
         * @param mixed                $value      Unsanitized setting post value.
         * @param WP_Customize_Manager $this       WP_Customize_Manager instance.
         */
        do_action( 'customize_post_value_set', $setting_id, $value, $this );
    }
    /**
     * Print JavaScript settings.
     *
     * @since 3.4.0
     */
    public function customize_preview_init() {
        $this->nonce_tick = check_ajax_referer( 'preview-customize_' . $this->get_stylesheet(), 'nonce' );
        $this->prepare_controls();
        wp_enqueue_script( 'customize-preview' );
        add_action( 'wp', array( $this, 'customize_preview_override_404_status' ) );
        add_action( 'wp_head', array( $this, 'customize_preview_base' ) );
        add_action( 'wp_head', array( $this, 'customize_preview_html5' ) );
        add_action( 'wp_head', array( $this, 'customize_preview_loading_style' ) );
        add_action( 'wp_footer', array( $this, 'customize_preview_settings' ), 20 );
        add_action( 'shutdown', array( $this, 'customize_preview_signature' ), 1000 );
        add_filter( 'wp_die_handler', array( $this, 'remove_preview_signature' ) );
        foreach ( $this->settings as $setting ) {
            $setting->preview();
        }
        /**
         * Fires once the Customizer preview has initialized and JavaScript
         * settings have been printed.
         *
         * @since 3.4.0
         *
         * @param WP_Customize_Manager $this WP_Customize_Manager instance.
         */
        do_action( 'customize_preview_init', $this );
    }
    /**
     * Prevent sending a 404 status when returning the response for the customize
     * preview, since it causes the jQuery AJAX to fail. Send 200 instead.
     *
     * @since 4.0.0
     * @access public
     */
    public function customize_preview_override_404_status() {
        if ( is_404() ) {
            status_header( 200 );
        }
    }
    /**
     * Print base element for preview frame.
     *
     * @since 3.4.0
     */
    public function customize_preview_base() {
        ?><base href="<?php echo home_url( '/' ); ?>" /><?php
    }
    /**
     * Print a workaround to handle HTML5 tags in IE < 9.
     *
     * @since 3.4.0
     */
    public function customize_preview_html5() { ?>
        <!--[if lt IE 9]>
        <script type="text/javascript">
            var e = [ 'abbr', 'article', 'aside', 'audio', 'canvas', 'datalist', 'details',
                'figure', 'footer', 'header', 'hgroup', 'mark', 'menu', 'meter', 'nav',
                'output', 'progress', 'section', 'time', 'video' ];
            for ( var i = 0; i < e.length; i++ ) {
                document.createElement( e[i] );
            }
        </script>
        <![endif]--><?php
    }
    /**
     * Print CSS for loading indicators for the Customizer preview.
     *
     * @since 4.2.0
     * @access public
     */
    public function customize_preview_loading_style() {
        ?><style>
            body.wp-customizer-unloading {
                opacity: 0.25;
                cursor: progress !important;
                -webkit-transition: opacity 0.5s;
                transition: opacity 0.5s;
            }
            body.wp-customizer-unloading * {
                pointer-events: none !important;
            }
        </style><?php
    }
    /**
     * Print JavaScript settings for preview frame.
     *
     * @since 3.4.0
     */
    public function customize_preview_settings() {
        $settings = array(
            'channel' => wp_unslash( $_POST['customize_messenger_channel'] ),
            'activePanels' => array(),
            'activeSections' => array(),
            'activeControls' => array(),
        );
        if ( 2 == $this->nonce_tick ) {
            $settings['nonce'] = array(
                'save' => wp_create_nonce( 'save-customize_' . $this->get_stylesheet() ),
                'preview' => wp_create_nonce( 'preview-customize_' . $this->get_stylesheet() )
            );
        }
        foreach ( $this->panels as $panel_id => $panel ) {
            if ( $panel->check_capabilities() ) {
                $settings['activePanels'][ $panel_id ] = $panel->active();
                foreach ( $panel->sections as $section_id => $section ) {
                    if ( $section->check_capabilities() ) {
                        $settings['activeSections'][ $section_id ] = $section->active();
                    }
                }
            }
        }
        foreach ( $this->sections as $id => $section ) {
            if ( $section->check_capabilities() ) {
                $settings['activeSections'][ $id ] = $section->active();
            }
        }
        foreach ( $this->controls as $id => $control ) {
            if ( $control->check_capabilities() ) {
                $settings['activeControls'][ $id ] = $control->active();
            }
        }
        ?>
        <script type="text/javascript">
            var _wpCustomizeSettings = <?php echo wp_json_encode( $settings ); ?>;
            _wpCustomizeSettings.values = {};
            (function( v ) {
                <?php
                /*
                 * Serialize settings separately from the initial _wpCustomizeSettings
                 * serialization in order to avoid a peak memory usage spike.
                 * @todo We may not even need to export the values at all since the pane syncs them anyway.
                 */
                foreach ( $this->settings as $id => $setting ) {
                    if ( $setting->check_capabilities() ) {
                        printf(
                            "v[%s] = %s;\n",
                            wp_json_encode( $id ),
                            wp_json_encode( $setting->js_value() )
                        );
                    }
                }
                ?>
            })( _wpCustomizeSettings.values );
        </script>
        <?php
    }
    /**
     * Prints a signature so we can ensure the Customizer was properly executed.
     *
     * @since 3.4.0
     */
    public function customize_preview_signature() {
        echo 'WP_CUSTOMIZER_SIGNATURE';
    }
    /**
     * Removes the signature in case we experience a case where the Customizer was not properly executed.
     *
     * @since 3.4.0
     *
     * @param mixed $return Value passed through for wp_die_handler filter.
     * @return mixed Value passed through for wp_die_handler filter.
     */
    public function remove_preview_signature( $return = null ) {
        remove_action( 'shutdown', array( $this, 'customize_preview_signature' ), 1000 );
        return $return;
    }
    /**
     * Is it a theme preview?
     *
     * @since 3.4.0
     *
     * @return bool True if it's a preview, false if not.
     */
    public function is_preview() {
        return (bool) $this->previewing;
    }
    /**
     * Retrieve the template name of the previewed theme.
     *
     * @since 3.4.0
     *
     * @return string Template name.
     */
    public function get_template() {
        return $this->theme()->get_template();
    }
    /**
     * Retrieve the stylesheet name of the previewed theme.
     *
     * @since 3.4.0
     *
     * @return string Stylesheet name.
     */
    public function get_stylesheet() {
        return $this->theme()->get_stylesheet();
    }
    /**
     * Retrieve the template root of the previewed theme.
     *
     * @since 3.4.0
     *
     * @return string Theme root.
     */
    public function get_template_root() {
        return get_raw_theme_root( $this->get_template(), true );
    }
    /**
     * Retrieve the stylesheet root of the previewed theme.
     *
     * @since 3.4.0
     *
     * @return string Theme root.
     */
    public function get_stylesheet_root() {
        return get_raw_theme_root( $this->get_stylesheet(), true );
    }
    /**
     * Filter the current theme and return the name of the previewed theme.
     *
     * @since 3.4.0
     *
     * @param $current_theme {@internal Parameter is not used}
     * @return string Theme name.
     */
    public function current_theme( $current_theme ) {
        return $this->theme()->display('Name');
    }
    /**
     * Switch the theme and trigger the save() method on each setting.
     *
     * @since 3.4.0
     */
    public function save() {
        if ( ! $this->is_preview() ) {
            wp_send_json_error( 'not_preview' );
        }
        $action = 'save-customize_' . $this->get_stylesheet();
        if ( ! check_ajax_referer( $action, 'nonce', false ) ) {
            wp_send_json_error( 'invalid_nonce' );
        }
        // Do we have to switch themes?
        if ( ! $this->is_theme_active() ) {
            // Temporarily stop previewing the theme to allow switch_themes()
            // to operate properly.
            $this->stop_previewing_theme();
            switch_theme( $this->get_stylesheet() );
            update_option( 'theme_switched_via_customizer', true );
            $this->start_previewing_theme();
        }
        /**
         * Fires once the theme has switched in the Customizer, but before settings
         * have been saved.
         *
         * @since 3.4.0
         *
         * @param WP_Customize_Manager $this WP_Customize_Manager instance.
         */
        do_action( 'customize_save', $this );
        foreach ( $this->settings as $setting ) {
            $setting->save();
        }
        /**
         * Fires after Customize settings have been saved.
         *
         * @since 3.6.0
         *
         * @param WP_Customize_Manager $this WP_Customize_Manager instance.
         */
        do_action( 'customize_save_after', $this );
        /**
         * Filter response data for a successful customize_save AJAX request.
         *
         * This filter does not apply if there was a nonce or authentication failure.
         *
         * @since 4.2.0
         *
         * @param array                $data Additional information passed back to the 'saved'
         *                                   event on `wp.customize`.
         * @param WP_Customize_Manager $this WP_Customize_Manager instance.
         */
        $response = apply_filters( 'customize_save_response', array(), $this );
        wp_send_json_success( $response );
    }
    /**
     * Refresh nonces for the current preview.
     *
     * @since 4.2.0
     */
    public function refresh_nonces() {
        if ( ! $this->is_preview() ) {
            wp_send_json_error( 'not_preview' );
        }
        $nonces = array(
            'save'    => wp_create_nonce( 'save-customize_' . $this->get_stylesheet() ),
            'preview' => wp_create_nonce( 'preview-customize_' . $this->get_stylesheet() ),
        );
        /**
         * Filter nonces for a customize_refresh_nonces AJAX request.
         *
         * @since 4.2.0
         *
         * @param array                $nonces Array of refreshed nonces for save and
         *                                     preview actions.
         * @param WP_Customize_Manager $this   WP_Customize_Manager instance.
         */
        $nonces = apply_filters( 'customize_refresh_nonces', $nonces, $this );
        wp_send_json_success( $nonces );
    }
    /**
     * Add a customize setting.
     *
     * @since 3.4.0
     *
     * @param WP_Customize_Setting|string $id Customize Setting object, or ID.
     * @param array $args                     Setting arguments; passed to WP_Customize_Setting
     *                                        constructor.
     */
    public function add_setting( $id, $args = array() ) {
        if ( $id instanceof WP_Customize_Setting ) {
            $setting = $id;
        } else {
            $setting = new WP_Customize_Setting( $this, $id, $args );
        }
        $this->settings[ $setting->id ] = $setting;
    }
    /**
     * Register any dynamically-created settings, such as those from $_POST['customized']
     * that have no corresponding setting created.
     *
     * This is a mechanism to "wake up" settings that have been dynamically created
     * on the frontend and have been sent to WordPress in `$_POST['customized']`. When WP
     * loads, the dynamically-created settings then will get created and previewed
     * even though they are not directly created statically with code.
     *
     * @since 4.2.0
     *
     * @param array $setting_ids The setting IDs to add.
     * @return array The WP_Customize_Setting objects added.
     */
    public function add_dynamic_settings( $setting_ids ) {
        $new_settings = array();
        foreach ( $setting_ids as $setting_id ) {
            // Skip settings already created
            if ( $this->get_setting( $setting_id ) ) {
                continue;
            }
            $setting_args = false;
            $setting_class = 'WP_Customize_Setting';
            /**
             * Filter a dynamic setting's constructor args.
             *
             * For a dynamic setting to be registered, this filter must be employed
             * to override the default false value with an array of args to pass to
             * the WP_Customize_Setting constructor.
             *
             * @since 4.2.0
             *
             * @param false|array $setting_args The arguments to the WP_Customize_Setting constructor.
             * @param string      $setting_id   ID for dynamic setting, usually coming from `$_POST['customized']`.
             */
            $setting_args = apply_filters( 'customize_dynamic_setting_args', $setting_args, $setting_id );
            if ( false === $setting_args ) {
                continue;
            }
            /**
             * Allow non-statically created settings to be constructed with custom WP_Customize_Setting subclass.
             *
             * @since 4.2.0
             *
             * @param string $setting_class WP_Customize_Setting or a subclass.
             * @param string $setting_id    ID for dynamic setting, usually coming from `$_POST['customized']`.
             * @param array  $setting_args  WP_Customize_Setting or a subclass.
             */
            $setting_class = apply_filters( 'customize_dynamic_setting_class', $setting_class, $setting_id, $setting_args );
            $setting = new $setting_class( $this, $setting_id, $setting_args );
            $this->add_setting( $setting );
            $new_settings[] = $setting;
        }
        return $new_settings;
    }
    /**
     * Retrieve a customize setting.
     *
     * @since 3.4.0
     *
     * @param string $id Customize Setting ID.
     * @return WP_Customize_Setting|void The setting, if set.
     */
    public function get_setting( $id ) {
        if ( isset( $this->settings[ $id ] ) ) {
            return $this->settings[ $id ];
        }
    }
    /**
     * Remove a customize setting.
     *
     * @since 3.4.0
     *
     * @param string $id Customize Setting ID.
     */
    public function remove_setting( $id ) {
        unset( $this->settings[ $id ] );
    }
    /**
     * Add a customize panel.
     *
     * @since 4.0.0
     * @access public
     *
     * @param WP_Customize_Panel|string $id   Customize Panel object, or Panel ID.
     * @param array                     $args Optional. Panel arguments. Default empty array.
     */
    public function add_panel( $id, $args = array() ) {
        if ( $id instanceof WP_Customize_Panel ) {
            $panel = $id;
        } else {
            $panel = new WP_Customize_Panel( $this, $id, $args );
        }
        $this->panels[ $panel->id ] = $panel;
    }
    /**
     * Retrieve a customize panel.
     *
     * @since 4.0.0
     * @access public
     *
     * @param string $id Panel ID to get.
     * @return WP_Customize_Panel|void Requested panel instance, if set.
     */
    public function get_panel( $id ) {
        if ( isset( $this->panels[ $id ] ) ) {
            return $this->panels[ $id ];
        }
    }
    /**
     * Remove a customize panel.
     *
     * @since 4.0.0
     * @access public
     *
     * @param string $id Panel ID to remove.
     */
    public function remove_panel( $id ) {
        unset( $this->panels[ $id ] );
    }
    /**
     * Register a customize panel type.
     *
     * Registered types are eligible to be rendered via JS and created dynamically.
     *
     * @since 4.3.0
     * @access public
     *
     * @see WP_Customize_Panel
     *
     * @param string $panel Name of a custom panel which is a subclass of WP_Customize_Panel.
     */
    public function register_panel_type( $panel ) {
        $this->registered_panel_types[] = $panel;
    }
    /**
     * Render JS templates for all registered panel types.
     *
     * @since 4.3.0
     * @access public
     */
    public function render_panel_templates() {
        foreach ( $this->registered_panel_types as $panel_type ) {
            $panel = new $panel_type( $this, 'temp', array() );
            $panel->print_template();
        }
    }
    /**
     * Add a customize section.
     *
     * @since 3.4.0
     *
     * @param WP_Customize_Section|string $id   Customize Section object, or Section ID.
     * @param array                       $args Section arguments.
     */
    public function add_section( $id, $args = array() ) {
        if ( $id instanceof WP_Customize_Section ) {
            $section = $id;
        } else {
            $section = new WP_Customize_Section( $this, $id, $args );
        }
        $this->sections[ $section->id ] = $section;
    }
    /**
     * Retrieve a customize section.
     *
     * @since 3.4.0
     *
     * @param string $id Section ID.
     * @return WP_Customize_Section|void The section, if set.
     */
    public function get_section( $id ) {
        if ( isset( $this->sections[ $id ] ) )
            return $this->sections[ $id ];
    }
    /**
     * Remove a customize section.
     *
     * @since 3.4.0
     *
     * @param string $id Section ID.
     */
    public function remove_section( $id ) {
        unset( $this->sections[ $id ] );
    }
    /**
     * Register a customize section type.
     *
     * Registered types are eligible to be rendered via JS and created dynamically.
     *
     * @since 4.3.0
     * @access public
     *
     * @see WP_Customize_Section
     *
     * @param string $section Name of a custom section which is a subclass of WP_Customize_Section.
     */
    public function register_section_type( $section ) {
        $this->registered_section_types[] = $section;
    }
    /**
     * Render JS templates for all registered section types.
     *
     * @since 4.3.0
     * @access public
     */
    public function render_section_templates() {
        foreach ( $this->registered_section_types as $section_type ) {
            $section = new $section_type( $this, 'temp', array() );
            $section->print_template();
        }
    }
    /**
     * Add a customize control.
     *
     * @since 3.4.0
     *
     * @param WP_Customize_Control|string $id   Customize Control object, or ID.
     * @param array                       $args Control arguments; passed to WP_Customize_Control
     *                                          constructor.
     */
    public function add_control( $id, $args = array() ) {
        if ( $id instanceof WP_Customize_Control ) {
            $control = $id;
        } else {
            $control = new WP_Customize_Control( $this, $id, $args );
        }
        $this->controls[ $control->id ] = $control;
    }
    /**
     * Retrieve a customize control.
     *
     * @since 3.4.0
     *
     * @param string $id ID of the control.
     * @return WP_Customize_Control|void The control object, if set.
     */
    public function get_control( $id ) {
        if ( isset( $this->controls[ $id ] ) )
            return $this->controls[ $id ];
    }
    /**
     * Remove a customize control.
     *
     * @since 3.4.0
     *
     * @param string $id ID of the control.
     */
    public function remove_control( $id ) {
        unset( $this->controls[ $id ] );
    }
    /**
     * Register a customize control type.
     *
     * Registered types are eligible to be rendered via JS and created dynamically.
     *
     * @since 4.1.0
     * @access public
     *
     * @param string $control Name of a custom control which is a subclass of
     *                        {@see WP_Customize_Control}.
     */
    public function register_control_type( $control ) {
        $this->registered_control_types[] = $control;
    }
    /**
     * Render JS templates for all registered control types.
     *
     * @since 4.1.0
     * @access public
     */
    public function render_control_templates() {
        foreach ( $this->registered_control_types as $control_type ) {
            $control = new $control_type( $this, 'temp', array() );
            $control->print_template();
        }
    }
    /**
     * Helper function to compare two objects by priority, ensuring sort stability via instance_number.
     *
     * @since 3.4.0
     *
     * @param WP_Customize_Panel|WP_Customize_Section|WP_Customize_Control $a Object A.
     * @param WP_Customize_Panel|WP_Customize_Section|WP_Customize_Control $b Object B.
     * @return int
     */
    protected function _cmp_priority( $a, $b ) {
        if ( $a->priority === $b->priority ) {
            return $a->instance_number - $b->instance_number;
        } else {
            return $a->priority - $b->priority;
        }
    }
    /**
     * Prepare panels, sections, and controls.
     *
     * For each, check if required related components exist,
     * whether the user has the necessary capabilities,
     * and sort by priority.
     *
     * @since 3.4.0
     */
    public function prepare_controls() {
        $controls = array();
        uasort( $this->controls, array( $this, '_cmp_priority' ) );
        foreach ( $this->controls as $id => $control ) {
            if ( ! isset( $this->sections[ $control->section ] ) || ! $control->check_capabilities() ) {
                continue;
            }
            $this->sections[ $control->section ]->controls[] = $control;
            $controls[ $id ] = $control;
        }
        $this->controls = $controls;
        // Prepare sections.
        uasort( $this->sections, array( $this, '_cmp_priority' ) );
        $sections = array();
        foreach ( $this->sections as $section ) {
            if ( ! $section->check_capabilities() ) {
                continue;
            }
            usort( $section->controls, array( $this, '_cmp_priority' ) );
            if ( ! $section->panel ) {
                // Top-level section.
                $sections[ $section->id ] = $section;
            } else {
                // This section belongs to a panel.
                if ( isset( $this->panels [ $section->panel ] ) ) {
                    $this->panels[ $section->panel ]->sections[ $section->id ] = $section;
                }
            }
        }
        $this->sections = $sections;
        // Prepare panels.
        uasort( $this->panels, array( $this, '_cmp_priority' ) );
        $panels = array();
        foreach ( $this->panels as $panel ) {
            if ( ! $panel->check_capabilities() ) {
                continue;
            }
            uasort( $panel->sections, array( $this, '_cmp_priority' ) );
            $panels[ $panel->id ] = $panel;
        }
        $this->panels = $panels;
        // Sort panels and top-level sections together.
        $this->containers = array_merge( $this->panels, $this->sections );
        uasort( $this->containers, array( $this, '_cmp_priority' ) );
    }
    /**
     * Enqueue scripts for customize controls.
     *
     * @since 3.4.0
     */
    public function enqueue_control_scripts() {
        foreach ( $this->controls as $control ) {
            $control->enqueue();
        }
    }
    /**
     * Determine whether the user agent is iOS.
     *
     * @since 4.4.0
     * @access public
     *
     * @return bool Whether the user agent is iOS.
     */
    public function is_ios() {
        return wp_is_mobile() && preg_match( '/iPad|iPod|iPhone/', $_SERVER['HTTP_USER_AGENT'] );
    }
    /**
     * Get the template string for the Customizer pane document title.
     *
     * @since 4.4.0
     * @access public
     *
     * @return string The template string for the document title.
     */
    public function get_document_title_template() {
        if ( $this->is_theme_active() ) {
            /* translators: %s: document title from the preview */
            $document_title_tmpl = __( 'Customize: %s' );
        } else {
            /* translators: %s: document title from the preview */
            $document_title_tmpl = __( 'Live Preview: %s' );
        }
        $document_title_tmpl = html_entity_decode( $document_title_tmpl, ENT_QUOTES, 'UTF-8' ); // Because exported to JS and assigned to document.title.
        return $document_title_tmpl;
    }
    /**
     * Set the initial URL to be previewed.
     *
     * URL is validated.
     *
     * @since 4.4.0
     * @access public
     *
     * @param string $preview_url URL to be previewed.
     */
    public function set_preview_url( $preview_url ) {
        $this->preview_url = wp_validate_redirect( $preview_url, home_url( '/' ) );
    }
    /**
     * Get the initial URL to be previewed.
     *
     * @since 4.4.0
     * @access public
     *
     * @return string URL being previewed.
     */
    public function get_preview_url() {
        if ( empty( $this->preview_url ) ) {
            $preview_url = home_url( '/' );
        } else {
            $preview_url = $this->preview_url;
        }
        return $preview_url;
    }
    /**
     * Set URL to link the user to when closing the Customizer.
     *
     * URL is validated.
     *
     * @since 4.4.0
     * @access public
     *
     * @param string $return_url URL for return link.
     */
    public function set_return_url( $return_url ) {
        $return_url = remove_query_arg( wp_removable_query_args(), $return_url );
        $return_url = wp_validate_redirect( $return_url );
        $this->return_url = $return_url;
    }
    /**
     * Get URL to link the user to when closing the Customizer.
     *
     * @since 4.4.0
     * @access public
     *
     * @return string URL for link to close Customizer.
     */
    public function get_return_url() {
        $referer = wp_get_referer();
        if ( $this->return_url ) {
            $return_url = $this->return_url;
        } else if ( $referer && 'customize.php' !== basename( parse_url( $referer, PHP_URL_PATH ) ) ) {
            $return_url = $referer;
        } else if ( $this->preview_url ) {
            $return_url = $this->preview_url;
        } else {
            $return_url = home_url( '/' );
        }
        return $return_url;
    }
    /**
     * Set the autofocused constructs.
     *
     * @since 4.4.0
     * @access public
     *
     * @param array $autofocus {
     *     Mapping of 'panel', 'section', 'control' to the ID which should be autofocused.
     *
     *     @type string [$control]  ID for control to be autofocused.
     *     @type string [$section]  ID for section to be autofocused.
     *     @type string [$panel]    ID for panel to be autofocused.
     * }
     */
    public function set_autofocus( $autofocus ) {
        $this->autofocus = array_filter( wp_array_slice_assoc( $autofocus, array( 'panel', 'section', 'control' ) ), 'is_string' );
    }
    /**
     * Get the autofocused constructs.
     *
     * @since 4.4.0
     * @access public
     *
     * @return array {
     *     Mapping of 'panel', 'section', 'control' to the ID which should be autofocused.
     *
     *     @type string [$control]  ID for control to be autofocused.
     *     @type string [$section]  ID for section to be autofocused.
     *     @type string [$panel]    ID for panel to be autofocused.
     * }
     */
    public function get_autofocus() {
        return $this->autofocus;
    }
    /**
     * Print JavaScript settings for parent window.
     *
     * @since 4.4.0
     */
    public function customize_pane_settings() {
        /*
         * If the frontend and the admin are served from the same domain, load the
         * preview over ssl if the Customizer is being loaded over ssl. This avoids
         * insecure content warnings. This is not attempted if the admin and frontend
         * are on different domains to avoid the case where the frontend doesn't have
         * ssl certs. Domain mapping plugins can allow other urls in these conditions
         * using the customize_allowed_urls filter.
         */
        $allowed_urls = array( home_url( '/' ) );
        $admin_origin = parse_url( admin_url() );
        $home_origin  = parse_url( home_url() );
        $cross_domain = ( strtolower( $admin_origin['host'] ) !== strtolower( $home_origin['host'] ) );
        if ( is_ssl() && ! $cross_domain ) {
            $allowed_urls[] = home_url( '/', 'https' );
        }
        /**
         * Filter the list of URLs allowed to be clicked and followed in the Customizer preview.
         *
         * @since 3.4.0
         *
         * @param array $allowed_urls An array of allowed URLs.
         */
        $allowed_urls = array_unique( apply_filters( 'customize_allowed_urls', $allowed_urls ) );
        $login_url = add_query_arg( array(
            'interim-login' => 1,
            'customize-login' => 1,
        ), wp_login_url() );
        // Prepare Customizer settings to pass to JavaScript.
        $settings = array(
            'theme'    => array(
                'stylesheet' => $this->get_stylesheet(),
                'active'     => $this->is_theme_active(),
            ),
            'url'      => array(
                'preview'       => esc_url_raw( $this->get_preview_url() ),
                'parent'        => esc_url_raw( admin_url() ),
                'activated'     => esc_url_raw( home_url( '/' ) ),
                'ajax'          => esc_url_raw( admin_url( 'admin-ajax.php', 'relative' ) ),
                'allowed'       => array_map( 'esc_url_raw', $allowed_urls ),
                'isCrossDomain' => $cross_domain,
                'home'          => esc_url_raw( home_url( '/' ) ),
                'login'         => esc_url_raw( $login_url ),
            ),
            'browser'  => array(
                'mobile' => wp_is_mobile(),
                'ios'    => $this->is_ios(),
            ),
            'panels'   => array(),
            'sections' => array(),
            'nonce'    => array(
                'save'    => wp_create_nonce( 'save-customize_' . $this->get_stylesheet() ),
                'preview' => wp_create_nonce( 'preview-customize_' . $this->get_stylesheet() ),
            ),
            'autofocus' => array(),
            'documentTitleTmpl' => $this->get_document_title_template(),
        );
        // Prepare Customize Section objects to pass to JavaScript.
        foreach ( $this->sections() as $id => $section ) {
            if ( $section->check_capabilities() ) {
                $settings['sections'][ $id ] = $section->json();
            }
        }
        // Prepare Customize Panel objects to pass to JavaScript.
        foreach ( $this->panels() as $panel_id => $panel ) {
            if ( $panel->check_capabilities() ) {
                $settings['panels'][ $panel_id ] = $panel->json();
                foreach ( $panel->sections as $section_id => $section ) {
                    if ( $section->check_capabilities() ) {
                        $settings['sections'][ $section_id ] = $section->json();
                    }
                }
            }
        }
        // Pass to frontend the Customizer construct being deeplinked.
        foreach ( $this->get_autofocus() as $type => $id ) {
            $can_autofocus = (
                ( 'control' === $type && $this->get_control( $id ) && $this->get_control( $id )->check_capabilities() )
                ||
                ( 'section' === $type && isset( $settings['sections'][ $id ] ) )
                ||
                ( 'panel' === $type && isset( $settings['panels'][ $id ] ) )
            );
            if ( $can_autofocus ) {
                $settings['autofocus'][ $type ] = $id;
            }
        }
        ?>
        <script type="text/javascript">
            var _wpCustomizeSettings = <?php echo wp_json_encode( $settings ); ?>;
            _wpCustomizeSettings.controls = {};
            _wpCustomizeSettings.settings = {};
            <?php
            // Serialize settings one by one to improve memory usage.
            echo "(function ( s ){\n";
            foreach ( $this->settings() as $setting ) {
                if ( $setting->check_capabilities() ) {
                    printf(
                        "s[%s] = %s;\n",
                        wp_json_encode( $setting->id ),
                        wp_json_encode( array(
                            'value'     => $setting->js_value(),
                            'transport' => $setting->transport,
                            'dirty'     => $setting->dirty,
                        ) )
                    );
                }
            }
            echo "})( _wpCustomizeSettings.settings );\n";
            // Serialize controls one by one to improve memory usage.
            echo "(function ( c ){\n";
            foreach ( $this->controls() as $control ) {
                if ( $control->check_capabilities() ) {
                    printf(
                        "c[%s] = %s;\n",
                        wp_json_encode( $control->id ),
                        wp_json_encode( $control->json() )
                    );
                }
            }
            echo "})( _wpCustomizeSettings.controls );\n";
        ?>
        </script>
        <?php
    }
    /**
     * Register some default controls.
     *
     * @since 3.4.0
     */
    public function register_controls() {
        /* Panel, Section, and Control Types */
        $this->register_panel_type( 'WP_Customize_Panel' );
        $this->register_section_type( 'WP_Customize_Section' );
        $this->register_section_type( 'WP_Customize_Sidebar_Section' );
        $this->register_control_type( 'WP_Customize_Color_Control' );
        $this->register_control_type( 'WP_Customize_Media_Control' );
        $this->register_control_type( 'WP_Customize_Upload_Control' );
        $this->register_control_type( 'WP_Customize_Image_Control' );
        $this->register_control_type( 'WP_Customize_Background_Image_Control' );
        $this->register_control_type( 'WP_Customize_Cropped_Image_Control' );
        $this->register_control_type( 'WP_Customize_Site_Icon_Control' );
        $this->register_control_type( 'WP_Customize_Theme_Control' );
        /* Themes */
        $this->add_section( new WP_Customize_Themes_Section( $this, 'themes', array(
            'title'      => $this->theme()->display( 'Name' ),
            'capability' => 'switch_themes',
            'priority'   => 0,
        ) ) );
        // Themes Setting (unused - the theme is considerably more fundamental to the Customizer experience).
        $this->add_setting( new WP_Customize_Filter_Setting( $this, 'active_theme', array(
            'capability' => 'switch_themes',
        ) ) );
        require_once( ABSPATH . 'wp-admin/includes/theme.php' );
        // Theme Controls.
        // Add a control for the active/original theme.
        if ( ! $this->is_theme_active() ) {
            $themes = wp_prepare_themes_for_js( array( wp_get_theme( $this->original_stylesheet ) ) );
            $active_theme = current( $themes );
            $active_theme['isActiveTheme'] = true;
            $this->add_control( new WP_Customize_Theme_Control( $this, $active_theme['id'], array(
                'theme'    => $active_theme,
                'section'  => 'themes',
                'settings' => 'active_theme',
            ) ) );
        }
        $themes = wp_prepare_themes_for_js();
        foreach ( $themes as $theme ) {
            if ( $theme['active'] || $theme['id'] === $this->original_stylesheet ) {
                continue;
            }
            $theme_id = 'theme_' . $theme['id'];
            $theme['isActiveTheme'] = false;
            $this->add_control( new WP_Customize_Theme_Control( $this, $theme_id, array(
                'theme'    => $theme,
                'section'  => 'themes',
                'settings' => 'active_theme',
            ) ) );
        }
        /* Site Identity */
        $this->add_section( 'title_tagline', array(
            'title'    => __( 'Site Identity' ),
            'priority' => 20,
        ) );
        $this->add_setting( 'blogname', array(
            'default'    => get_option( 'blogname' ),
            'type'       => 'option',
            'capability' => 'manage_options',
        ) );
        $this->add_control( 'blogname', array(
            'label'      => __( 'Site Title' ),
            'section'    => 'title_tagline',
        ) );
        $this->add_setting( 'blogdescription', array(
            'default'    => get_option( 'blogdescription' ),
            'type'       => 'option',
            'capability' => 'manage_options',
        ) );
        $this->add_control( 'blogdescription', array(
            'label'      => __( 'Tagline' ),
            'section'    => 'title_tagline',
        ) );
        $this->add_setting( 'site_icon', array(
            'type'       => 'option',
            'capability' => 'manage_options',
            'transport'  => 'postMessage', // Previewed with JS in the Customizer controls window.
        ) );
        $this->add_control( new WP_Customize_Site_Icon_Control( $this, 'site_icon', array(
            'label'       => __( 'Site Icon' ),
            'description' => __( 'The Site Icon is used as a browser and app icon for your site. Icons must be square, and at least 512px wide and tall.' ),
            'section'     => 'title_tagline',
            'priority'    => 60,
            'height'      => 512,
            'width'       => 512,
        ) ) );
        /* Colors */
        $this->add_section( 'colors', array(
            'title'          => __( 'Colors' ),
            'priority'       => 40,
        ) );
        $this->add_setting( 'header_textcolor', array(
            'theme_supports' => array( 'custom-header', 'header-text' ),
            'default'        => get_theme_support( 'custom-header', 'default-text-color' ),
            'sanitize_callback'    => array( $this, '_sanitize_header_textcolor' ),
            'sanitize_js_callback' => 'maybe_hash_hex_color',
        ) );
        // Input type: checkbox
        // With custom value
        $this->add_control( 'display_header_text', array(
            'settings' => 'header_textcolor',
            'label'    => __( 'Display Header Text' ),
            'section'  => 'title_tagline',
            'type'     => 'checkbox',
            'priority' => 40,
        ) );
        $this->add_control( new WP_Customize_Color_Control( $this, 'header_textcolor', array(
            'label'   => __( 'Header Text Color' ),
            'section' => 'colors',
        ) ) );
        // Input type: Color
        // With sanitize_callback
        $this->add_setting( 'background_color', array(
            'default'        => get_theme_support( 'custom-background', 'default-color' ),
            'theme_supports' => 'custom-background',
            'sanitize_callback'    => 'sanitize_hex_color_no_hash',
            'sanitize_js_callback' => 'maybe_hash_hex_color',
        ) );
        $this->add_control( new WP_Customize_Color_Control( $this, 'background_color', array(
            'label'   => __( 'Background Color' ),
            'section' => 'colors',
        ) ) );
        /* Custom Header */
        $this->add_section( 'header_image', array(
            'title'          => __( 'Header Image' ),
            'theme_supports' => 'custom-header',
            'priority'       => 60,
        ) );
        $this->add_setting( new WP_Customize_Filter_Setting( $this, 'header_image', array(
            'default'        => get_theme_support( 'custom-header', 'default-image' ),
            'theme_supports' => 'custom-header',
        ) ) );
        $this->add_setting( new WP_Customize_Header_Image_Setting( $this, 'header_image_data', array(
            // 'default'        => get_theme_support( 'custom-header', 'default-image' ),
            'theme_supports' => 'custom-header',
        ) ) );
        $this->add_control( new WP_Customize_Header_Image_Control( $this ) );
        /* Custom Background */
        $this->add_section( 'background_image', array(
            'title'          => __( 'Background Image' ),
            'theme_supports' => 'custom-background',
            'priority'       => 80,
        ) );
        $this->add_setting( 'background_image', array(
            'default'        => get_theme_support( 'custom-background', 'default-image' ),
            'theme_supports' => 'custom-background',
        ) );
        $this->add_setting( new WP_Customize_Background_Image_Setting( $this, 'background_image_thumb', array(
            'theme_supports' => 'custom-background',
        ) ) );
        $this->add_control( new WP_Customize_Background_Image_Control( $this ) );
        $this->add_setting( 'background_repeat', array(
            'default'        => get_theme_support( 'custom-background', 'default-repeat' ),
            'theme_supports' => 'custom-background',
        ) );
        $this->add_control( 'background_repeat', array(
            'label'      => __( 'Background Repeat' ),
            'section'    => 'background_image',
            'type'       => 'radio',
            'choices'    => array(
                'no-repeat'  => __('No Repeat'),
                'repeat'     => __('Tile'),
                'repeat-x'   => __('Tile Horizontally'),
                'repeat-y'   => __('Tile Vertically'),
            ),
        ) );
        $this->add_setting( 'background_position_x', array(
            'default'        => get_theme_support( 'custom-background', 'default-position-x' ),
            'theme_supports' => 'custom-background',
        ) );
        $this->add_control( 'background_position_x', array(
            'label'      => __( 'Background Position' ),
            'section'    => 'background_image',
            'type'       => 'radio',
            'choices'    => array(
                'left'       => __('Left'),
                'center'     => __('Center'),
                'right'      => __('Right'),
            ),
        ) );
        $this->add_setting( 'background_attachment', array(
            'default'        => get_theme_support( 'custom-background', 'default-attachment' ),
            'theme_supports' => 'custom-background',
        ) );
        $this->add_control( 'background_attachment', array(
            'label'      => __( 'Background Attachment' ),
            'section'    => 'background_image',
            'type'       => 'radio',
            'choices'    => array(
                'scroll'     => __('Scroll'),
                'fixed'      => __('Fixed'),
            ),
        ) );
        // If the theme is using the default background callback, we can update
        // the background CSS using postMessage.
        if ( get_theme_support( 'custom-background', 'wp-head-callback' ) === '_custom_background_cb' ) {
            foreach ( array( 'color', 'image', 'position_x', 'repeat', 'attachment' ) as $prop ) {
                $this->get_setting( 'background_' . $prop )->transport = 'postMessage';
            }
        }
        /* Static Front Page */
        // #WP19627
        // Replicate behavior from options-reading.php and hide front page options if there are no pages
        if ( get_pages() ) {
            $this->add_section( 'static_front_page', array(
                'title'          => __( 'Static Front Page' ),
            //    'theme_supports' => 'static-front-page',
                'priority'       => 120,
                'description'    => __( 'Your theme supports a static front page.' ),
            ) );
            $this->add_setting( 'show_on_front', array(
                'default'        => get_option( 'show_on_front' ),
                'capability'     => 'manage_options',
                'type'           => 'option',
            //    'theme_supports' => 'static-front-page',
            ) );
            $this->add_control( 'show_on_front', array(
                'label'   => __( 'Front page displays' ),
                'section' => 'static_front_page',
                'type'    => 'radio',
                'choices' => array(
                    'posts' => __( 'Your latest posts' ),
                    'page'  => __( 'A static page' ),
                ),
            ) );
            $this->add_setting( 'page_on_front', array(
                'type'       => 'option',
                'capability' => 'manage_options',
            //    'theme_supports' => 'static-front-page',
            ) );
            $this->add_control( 'page_on_front', array(
                'label'      => __( 'Front page' ),
                'section'    => 'static_front_page',
                'type'       => 'dropdown-pages',
            ) );
            $this->add_setting( 'page_for_posts', array(
                'type'           => 'option',
                'capability'     => 'manage_options',
            //    'theme_supports' => 'static-front-page',
            ) );
            $this->add_control( 'page_for_posts', array(
                'label'      => __( 'Posts page' ),
                'section'    => 'static_front_page',
                'type'       => 'dropdown-pages',
            ) );
        }
    }
    /**
     * Add settings from the POST data that were not added with code, e.g. dynamically-created settings for Widgets
     *
     * @since 4.2.0
     * @access public
     *
     * @see add_dynamic_settings()
     */
    public function register_dynamic_settings() {
        $this->add_dynamic_settings( array_keys( $this->unsanitized_post_values() ) );
    }
    /**
     * Callback for validating the header_textcolor value.
     *
     * Accepts 'blank', and otherwise uses sanitize_hex_color_no_hash().
     * Returns default text color if hex color is empty.
     *
     * @since 3.4.0
     *
     * @param string $color
     * @return mixed
     */
    public function _sanitize_header_textcolor( $color ) {
        if ( 'blank' === $color )
            return 'blank';
        $color = sanitize_hex_color_no_hash( $color );
        if ( empty( $color ) )
            $color = get_theme_support( 'custom-header', 'default-text-color' );
        return $color;
    }
}
/**
 * Sanitizes a hex color.
 *
 * Returns either '', a 3 or 6 digit hex color (with #), or nothing.
 * For sanitizing values without a #, see sanitize_hex_color_no_hash().
 *
 * @since 3.4.0
 *
 * @param string $color
 * @return string|void
 */
function sanitize_hex_color( $color ) {
    if ( '' === $color )
        return '';
    // 3 or 6 hex digits, or the empty string.
    if ( preg_match('|^#([A-Fa-f0-9]{3}){1,2}$|', $color ) )
        return $color;
}
/**
 * Sanitizes a hex color without a hash. Use sanitize_hex_color() when possible.
 *
 * Saving hex colors without a hash puts the burden of adding the hash on the
 * UI, which makes it difficult to use or upgrade to other color types such as
 * rgba, hsl, rgb, and html color names.
 *
 * Returns either '', a 3 or 6 digit hex color (without a #), or null.
 *
 * @since 3.4.0
 *
 * @param string $color
 * @return string|null
 */
function sanitize_hex_color_no_hash( $color ) {
    $color = ltrim( $color, '#' );
    if ( '' === $color )
        return '';
    return sanitize_hex_color( '#' . $color ) ? $color : null;
}
/**
 * Ensures that any hex color is properly hashed.
 * Otherwise, returns value untouched.
 *
 * This method should only be necessary if using sanitize_hex_color_no_hash().
 *
 * @since 3.4.0
 *
 * @param string $color
 * @return string
 */
function maybe_hash_hex_color( $color ) {
    if ( $unhashed = sanitize_hex_color_no_hash( $color ) )
        return '#' . $unhashed;
    return $color;
}