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[autoinstalls/wordpress.git] / wp-includes / class-wp-customize-manager.php
diff --git a/wp-includes/class-wp-customize-manager.php b/wp-includes/class-wp-customize-manager.php
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@@ -0,0 +1,1010 @@
+<?php
+/**
+ * Customize
+ *
+ * @package WordPress
+ * @subpackage Customize
+ * @since 3.4.0
+ */
+
+final class WP_Customize_Manager {
+       protected $theme;
+       protected $original_stylesheet;
+
+       protected $previewing = false;
+
+       protected $settings = array();
+       protected $sections = array();
+       protected $controls = array();
+
+       protected $customized;
+
+       private $_post_values;
+
+       /**
+        * Constructor.
+        *
+        * @since 3.4.0
+        */
+       public function __construct() {
+               require( ABSPATH . WPINC . '/class-wp-customize-setting.php' );
+               require( ABSPATH . WPINC . '/class-wp-customize-section.php' );
+               require( ABSPATH . WPINC . '/class-wp-customize-control.php' );
+
+               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( 'customize_register',                 array( $this, 'register_controls' ) );
+               add_action( 'customize_controls_init',            array( $this, 'prepare_controls' ) );
+               add_action( 'customize_controls_enqueue_scripts', array( $this, 'enqueue_control_scripts' ) );
+       }
+
+       /**
+        * Return true if it's an AJAX request.
+        *
+        * @since 3.4.0
+        */
+       public function doing_ajax() {
+               return isset( $_POST['customized'] ) || ( defined( 'DOING_AJAX' ) && DOING_AJAX );
+       }
+
+       /**
+        * Custom wp_die wrapper. Returns either the standard message for UI
+        * or the AJAX message.
+        *
+        * @param  mixed $ajax_message AJAX return
+        * @param  mixed $message      UI message
+        *
+        * @since 3.4.0
+        */
+       protected function wp_die( $ajax_message, $message = null ) {
+               if ( $this->doing_ajax() )
+                       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
+        */
+       public function wp_die_handler() {
+               if ( $this->doing_ajax() )
+                       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();
+
+               if ( is_admin() && ! $this->doing_ajax() )
+                   auth_redirect();
+               elseif ( $this->doing_ajax() && ! is_user_logged_in() )
+                   $this->wp_die( 0 );
+
+               show_admin_bar( false );
+
+               if ( ! current_user_can( 'edit_theme_options' ) )
+                       $this->wp_die( -1 );
+
+               $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 ( ! current_user_can( 'switch_themes' ) )
+                               $this->wp_die( -1 );
+
+                       // If the theme isn't active, you can't preview it if it is not allowed or has errors.
+                       if ( $this->theme()->errors() )
+                               $this->wp_die( -1 );
+
+                       if ( ! $this->theme()->is_allowed() )
+                               $this->wp_die( -1 );
+               }
+
+               $this->start_previewing_theme();
+       }
+
+       function after_setup_theme() {
+               if ( ! $this->doing_ajax() && ! validate_current_theme() ) {
+                       wp_redirect( 'themes.php?broken=true' );
+                       exit;
+               }
+       }
+
+       /**
+        * Start previewing the selected theme.
+        *
+        * Adds filters to change the current theme.
+        *
+        * @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: http://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' ) );
+               }
+
+               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: http://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' ) );
+               }
+
+               do_action( 'stop_previewing_theme', $this );
+       }
+
+       /**
+        * Get the theme being customized.
+        *
+        * @since 3.4.0
+        *
+        * @return WP_Theme
+        */
+       public function 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 sections.
+        *
+        * @since 3.4.0
+        *
+        * @return array
+        */
+       public function sections() {
+               return $this->sections;
+       }
+
+       /**
+        * 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() {
+               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
+        */
+       public function wp_redirect_status( $status ) {
+               if ( $this->is_preview() && ! is_admin() )
+                       return 200;
+
+               return $status;
+       }
+
+       /**
+        * Decode the $_POST attribute used to override the WP_Customize_Setting values.
+        *
+        * @since 3.4.0
+        */
+       public function post_value( $setting ) {
+               if ( ! isset( $this->_post_values ) ) {
+                       if ( isset( $_POST['customized'] ) )
+                               $this->_post_values = json_decode( stripslashes( $_POST['customized'] ), true );
+                       else
+                               $this->_post_values = false;
+               }
+
+               if ( isset( $this->_post_values[ $setting->id ] ) )
+                       return $setting->sanitize( $this->_post_values[ $setting->id ] );
+       }
+
+       /**
+        * Print javascript settings.
+        *
+        * @since 3.4.0
+        */
+       public function customize_preview_init() {
+               $this->prepare_controls();
+
+               wp_enqueue_script( 'customize-preview' );
+               add_action( 'wp_head', array( $this, 'customize_preview_base' ) );
+               add_action( 'wp_head', array( $this, 'customize_preview_html5' ) );
+               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();
+               }
+
+               do_action( 'customize_preview_init', $this );
+       }
+
+       /**
+        * 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 javascript settings for preview frame.
+        *
+        * @since 3.4.0
+        */
+       public function customize_preview_settings() {
+               $settings = array(
+                       'values'  => array(),
+                       'channel' => esc_js( $_POST['customize_messenger_channel'] ),
+               );
+
+               foreach ( $this->settings as $id => $setting ) {
+                       $settings['values'][ $id ] = $setting->js_value();
+               }
+
+               ?>
+               <script type="text/javascript">
+                       var _wpCustomizeSettings = <?php echo json_encode( $settings ); ?>;
+               </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
+        */
+       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
+        *
+        * @return string Theme name.
+        */
+       public function current_theme( $current_theme ) {
+               return $this->theme()->display('Name');
+       }
+
+       /**
+        * Switch the theme and trigger the save action of each setting.
+        *
+        * @since 3.4.0
+        */
+       public function save() {
+               if ( ! $this->is_preview() )
+                       die;
+
+               check_ajax_referer( 'customize_controls-' . $this->get_stylesheet(), '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_template(), $this->get_stylesheet() );
+                       $this->start_previewing_theme();
+               }
+
+               do_action( 'customize_save', $this );
+
+               foreach ( $this->settings as $setting ) {
+                       $setting->save();
+               }
+
+               die;
+       }
+
+       /**
+        * Add a customize setting.
+        *
+        * @since 3.4.0
+        *
+        * @param string $id A specific ID of the setting. Can be a
+        *                   theme mod or option name.
+        * @param array $args Setting arguments.
+        */
+       public function add_setting( $id, $args = array() ) {
+               if ( is_a( $id, 'WP_Customize_Setting' ) )
+                       $setting = $id;
+               else
+                       $setting = new WP_Customize_Setting( $this, $id, $args );
+
+               $this->settings[ $setting->id ] = $setting;
+       }
+
+       /**
+        * Retrieve a customize setting.
+        *
+        * @since 3.4.0
+        *
+        * @param string $id A specific ID of the setting.
+        * @return object The settings object.
+        */
+       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 A specific ID of the setting.
+        */
+       public function remove_setting( $id ) {
+               unset( $this->settings[ $id ] );
+       }
+
+       /**
+        * Add a customize section.
+        *
+        * @since 3.4.0
+        *
+        * @param string $id A specific ID of the section.
+        * @param array $args Section arguments.
+        */
+       public function add_section( $id, $args = array() ) {
+               if ( is_a( $id, '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 A specific ID of the section.
+        * @return object The section object.
+        */
+       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 A specific ID of the section.
+        */
+       public function remove_section( $id ) {
+               unset( $this->sections[ $id ] );
+       }
+
+       /**
+        * Add a customize control.
+        *
+        * @since 3.4.0
+        *
+        * @param string $id A specific ID of the control.
+        * @param array $args Setting arguments.
+        */
+       public function add_control( $id, $args = array() ) {
+               if ( is_a( $id, '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 A specific ID of the control.
+        * @return object The settings object.
+        */
+       public function get_control( $id ) {
+               if ( isset( $this->controls[ $id ] ) )
+                       return $this->controls[ $id ];
+       }
+
+       /**
+        * Remove a customize setting.
+        *
+        * @since 3.4.0
+        *
+        * @param string $id A specific ID of the control.
+        */
+       public function remove_control( $id ) {
+               unset( $this->controls[ $id ] );
+       }
+
+       /**
+        * Helper function to compare two objects by priority.
+        *
+        * @since 3.4.0
+        *
+        * @param object $a Object A.
+        * @param object $b Object B.
+        */
+       protected final function _cmp_priority( $a, $b ) {
+               $ap = $a->priority;
+               $bp = $b->priority;
+
+               if ( $ap == $bp )
+                       return 0;
+               return ( $ap > $bp ) ? 1 : -1;
+       }
+
+       /**
+        * Prepare settings and sections.
+        *
+        * @since 3.4.0
+        */
+       public function prepare_controls() {
+               // Prepare controls
+               // Reversing makes uasort sort by time added when conflicts occur.
+
+               $this->controls = array_reverse( $this->controls );
+               $controls = array();
+
+               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
+               $this->sections = array_reverse( $this->sections );
+               uasort( $this->sections, array( $this, '_cmp_priority' ) );
+               $sections = array();
+
+               foreach ( $this->sections as $section ) {
+                       if ( ! $section->check_capabilities() || ! $section->controls )
+                               continue;
+
+                       usort( $section->controls, array( $this, '_cmp_priority' ) );
+                       $sections[] = $section;
+               }
+               $this->sections = $sections;
+       }
+
+       /**
+        * Enqueue scripts for customize controls.
+        *
+        * @since 3.4.0
+        */
+       public function enqueue_control_scripts() {
+               foreach ( $this->controls as $control ) {
+                       $control->enqueue();
+               }
+       }
+
+       /**
+        * Register some default controls.
+        *
+        * @since 3.4.0
+        */
+       public function register_controls() {
+
+               /* Site Title & Tagline */
+
+               $this->add_section( 'title_tagline', array(
+                       'title'    => __( 'Site Title & Tagline' ),
+                       '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',
+               ) );
+
+               /* 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',
+               ) );
+
+               $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'        => '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'        => 'left',
+                       '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'        => 'fixed',
+                       'theme_supports' => 'custom-background',
+               ) );
+
+               $this->add_control( 'background_attachment', array(
+                       'label'      => __( 'Background Attachment' ),
+                       'section'    => 'background_image',
+                       'type'       => 'radio',
+                       'choices'    => array(
+                               'fixed'      => __('Fixed'),
+                               'scroll'     => __('Scroll'),
+                       ),
+               ) );
+
+               // 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';
+                       }
+               }
+
+               /* Nav Menus */
+
+               $locations      = get_registered_nav_menus();
+               $menus          = wp_get_nav_menus();
+               $menu_locations = get_nav_menu_locations();
+               $num_locations  = count( array_keys( $locations ) );
+
+               $this->add_section( 'nav', array(
+                       'title'          => __( 'Navigation' ),
+                       'theme_supports' => 'menus',
+                       'priority'       => 100,
+                       'description'    => sprintf( _n('Your theme supports %s menu. Select which menu you would like to use.', 'Your theme supports %s menus. Select which menu appears in each location.', $num_locations ), number_format_i18n( $num_locations ) ) . "\n\n" . __('You can edit your menu content on the Menus screen in the Appearance section.'),
+               ) );
+
+               if ( $menus ) {
+                       $choices = array( 0 => __( '&mdash; Select &mdash;' ) );
+                       foreach ( $menus as $menu ) {
+                               $truncated_name = wp_html_excerpt( $menu->name, 40 );
+                               $truncated_name = ( $truncated_name == $menu->name ) ? $menu->name : trim( $truncated_name ) . '&hellip;';
+                               $choices[ $menu->term_id ] = $truncated_name;
+                       }
+
+                       foreach ( $locations as $location => $description ) {
+                               $menu_setting_id = "nav_menu_locations[{$location}]";
+
+                               $this->add_setting( $menu_setting_id, array(
+                                       'sanitize_callback' => 'absint',
+                                       'theme_supports'    => 'menus',
+                               ) );
+
+                               $this->add_control( $menu_setting_id, array(
+                                       'label'   => $description,
+                                       'section' => 'nav',
+                                       'type'    => 'select',
+                                       'choices' => $choices,
+                               ) );
+                       }
+               }
+
+               /* Static Front Page */
+               // #WP19627
+
+               $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',
+               ) );
+       }
+
+       /**
+        * Callback for validating the header_textcolor value.
+        *
+        * Accepts 'blank', and otherwise uses sanitize_hex_color_no_hash().
+        *
+        * @since 3.4.0
+        */
+       public function _sanitize_header_textcolor( $color ) {
+               return ( 'blank' === $color ) ? 'blank' : sanitize_hex_color_no_hash( $color );
+       }
+};
+
+/**
+ * Validates a hex color.
+ *
+ * Returns either '', a 3 or 6 digit hex color (with #), or null.
+ * For validating values without a #, see sanitize_hex_color_no_hash().
+ *
+ * @since 3.4.0
+ */
+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;
+
+       return null;
+}
+
+/**
+ * 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
+ */
+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
+ */
+function maybe_hash_hex_color( $color ) {
+       if ( $unhashed = sanitize_hex_color_no_hash( $color ) )
+               return '#' . $unhashed;
+
+       return $color;
+}