<?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
*/
#[AllowDynamicProperties]
final class WP_Customize_Manager {
/**
* An instance of the theme being previewed.
*
* @since 3.4.0
* @var WP_Theme
*/
protected $theme;

/**
* The directory name of the previously active theme (within the theme_root).
*
* @since 3.4.0
* @var string
*/
protected $original_stylesheet;

/**
* Whether this is a Customizer pageload.
*
* @since 3.4.0
* @var bool
*/
protected $previewing = false;

/**
* Methods and properties dealing with managing widgets in the Customizer.
*
* @since 3.9.0
* @var WP_Customize_Widgets
*/
public $widgets;

/**
* Methods and properties dealing with managing nav menus in the Customizer.
*
* @since 4.3.0
* @var WP_Customize_Nav_Menus
*/
public $nav_menus;

/**
* Methods and properties dealing with selective refresh in the Customizer preview.
*
* @since 4.5.0
* @var WP_Customize_Selective_Refresh
*/
public $selective_refresh;

/**
* Registered instances of WP_Customize_Setting.
*
* @since 3.4.0
* @var array
*/
protected $settings = array();

/**
* Sorted top-level instances of WP_Customize_Panel and WP_Customize_Section.
*
* @since 4.0.0
* @var array
*/
protected $containers = array();

/**
* Registered instances of WP_Customize_Panel.
*
* @since 4.0.0
* @var array
*/
protected $panels = array();

/**
* List of core components.
*
* @since 4.5.0
* @var array
*/
protected $components = array( 'nav_menus' );

/**
* Registered instances of WP_Customize_Section.
*
* @since 3.4.0
* @var array
*/
protected $sections = array();

/**
* Registered instances of WP_Customize_Control.
*
* @since 3.4.0
* @var array
*/
protected $controls = array();

/**
* Panel types that may be rendered from JS templates.
*
* @since 4.3.0
* @var array
*/
protected $registered_panel_types = array();

/**
* Section types that may be rendered from JS templates.
*
* @since 4.3.0
* @var array
*/
protected $registered_section_types = array();

/**
* Control types that may be rendered from JS templates.
*
* @since 4.1.0
* @var array
*/
protected $registered_control_types = array();

/**
* Initial URL being previewed.
*
* @since 4.4.0
* @var string
*/
protected $preview_url;

/**
* URL to link the user to when closing the Customizer.
*
* @since 4.4.0
* @var string
*/
protected $return_url;

/**
* Mapping of 'panel', 'section', 'control' to the ID which should be autofocused.
*
* @since 4.4.0
* @var string[]
*/
protected $autofocus = array();

/**
* Messenger channel.
*
* @since 4.7.0
* @var string
*/
protected $messenger_channel;

/**
* Whether the autosave revision of the changeset should be loaded.
*
* @since 4.9.0
* @var bool
*/
protected $autosaved = false;

/**
* Whether the changeset branching is allowed.
*
* @since 4.9.0
* @var bool
*/
protected $branching = true;

/**
* Whether settings should be previewed.
*
* @since 4.9.0
* @var bool
*/
protected $settings_previewed = true;

/**
* Whether a starter content changeset was saved.
*
* @since 4.9.0
* @var bool
*/
protected $saved_starter_content_changeset = false;

/**
* Unsanitized values for Customize Settings parsed from $_POST['customized'].
*
* @var array
*/
private $_post_values;

/**
* Changeset UUID.
*
* @since 4.7.0
* @var string
*/
private $_changeset_uuid;

/**
* Changeset post ID.
*
* @since 4.7.0
* @var int|false
*/
private $_changeset_post_id;

/**
* Changeset data loaded from a customize_changeset post.
*
* @since 4.7.0
* @var array|null
*/
private $_changeset_data;

/**
* Constructor.
*
* @since 3.4.0
* @since 4.7.0 Added `$args` parameter.
*
* @param array $args {
* Args.
*
* @type null|string|false $changeset_uuid Changeset UUID, the `post_name` for the customize_changeset post containing the customized state.
* Defaults to `null` resulting in a UUID to be immediately generated. If `false` is provided, then
* then the changeset UUID will be determined during `after_setup_theme`: when the
* `customize_changeset_branching` filter returns false, then the default UUID will be that
* of the most recent `customize_changeset` post that has a status other than 'auto-draft',
* 'publish', or 'trash'. Otherwise, if changeset branching is enabled, then a random UUID will be used.
* @type string $theme Theme to be previewed (for theme switch). Defaults to customize_theme or theme query params.
* @type string $messenger_channel Messenger channel. Defaults to customize_messenger_channel query param.
* @type bool $settings_previewed If settings should be previewed. Defaults to true.
* @type bool $branching If changeset branching is allowed; otherwise, changesets are linear. Defaults to true.
* @type bool $autosaved If data from a changeset's autosaved revision should be loaded if it exists. Defaults to false.
* }
*/
public function __construct( $args = array() ) {

$args = array_merge(
array_fill_keys( array( 'changeset_uuid', 'theme', 'messenger_channel', 'settings_previewed', 'autosaved', 'branching' ), null ),
$args
);

// Note that the UUID format will be validated in the setup_theme() method.
if ( ! isset( $args['changeset_uuid'] ) ) {
$args['changeset_uuid'] = wp_generate_uuid4();
}

/*
* The theme and messenger_channel should be supplied via $args,
* but they are also looked at in the $_REQUEST global here for back-compat.
*/
if ( ! isset( $args['theme'] ) ) {
if ( isset( $_REQUEST['customize_theme'] ) ) {
$args['theme'] = wp_unslash( $_REQUEST['customize_theme'] );
} elseif ( isset( $_REQUEST['theme'] ) ) { // Deprecated.
$args['theme'] = wp_unslash( $_REQUEST['theme'] );
}
}
if ( ! isset( $args['messenger_channel'] ) && isset( $_REQUEST['customize_messenger_channel'] ) ) {
$args['messenger_channel'] = sanitize_key( wp_unslash( $_REQUEST['customize_messenger_channel'] ) );
}

// Do not load 'widgets' component if a block theme is activated.
if ( ! wp_is_block_theme() ) {
$this->components[] = 'widgets';
}

$this->original_stylesheet = get_stylesheet();
$this->theme = wp_get_theme( 0 === validate_file( $args['theme'] ) ? $args['theme'] : null );
$this->messenger_channel = $args['messenger_channel'];
$this->_changeset_uuid = $args['changeset_uuid'];

foreach ( array( 'settings_previewed', 'autosaved', 'branching' ) as $key ) {
if ( isset( $args[ $key ] ) ) {
$this->$key = (bool) $args[ $key ];
}
}

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-background-position-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-customize-code-editor-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-locations-control.php';
require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menu-auto-add-control.php';

require_once ABSPATH . WPINC . '/customize/class-wp-customize-nav-menus-panel.php';

require_once ABSPATH . WPINC . '/customize/class-wp-customize-themes-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-custom-css-setting.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';

/**
* Filters 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 {@see 'plugins_loaded'} action, so it cannot be added
* in a theme.
*
* @since 4.4.0
*
* @see WP_Customize_Manager::__construct()
*
* @param string[] $components Array of core components to load.
* @param WP_Customize_Manager $manager WP_Customize_Manager instance.
*/
$components = apply_filters( 'customize_loaded_components', $this->components, $this );

require_once ABSPATH . WPINC . '/customize/class-wp-customize-selective-refresh.php';
$this->selective_refresh = new WP_Customize_Selective_Refresh( $this );

if ( in_array( 'widgets', $components, true ) ) {
require_once ABSPATH . WPINC . '/class-wp-customize-widgets.php';
$this->widgets = new WP_Customize_Widgets( $this );
}

if ( in_array( 'nav_menus', $components, true ) ) {
require_once ABSPATH . WPINC . '/class-wp-customize-nav-menus.php';
$this->nav_menus = new WP_Customize_Nav_Menus( $this );
}

add_action( 'setup_theme', array( $this, 'setup_theme' ) );
add_action( 'wp_loaded', array( $this, 'wp_loaded' ) );

// 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_trash', array( $this, 'handle_changeset_trash_request' ) );
add_action( 'wp_ajax_customize_refresh_nonces', array( $this, 'refresh_nonces' ) );
add_action( 'wp_ajax_customize_load_themes', array( $this, 'handle_load_themes_request' ) );
add_filter( 'heartbeat_settings', array( $this, 'add_customize_screen_to_heartbeat_settings' ) );
add_filter( 'heartbeat_received', array( $this, 'check_changeset_lock_with_heartbeat' ), 10, 3 );
add_action( 'wp_ajax_customize_override_changeset_lock', array( $this, 'handle_override_changeset_lock_request' ) );
add_action( 'wp_ajax_customize_dismiss_autosave_or_lock', array( $this, 'handle_dismiss_autosave_or_lock_request' ) );

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 Common, 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 header video settings with the partial response.
add_filter( 'customize_render_partials_response', array( $this, 'export_header_video_settings' ), 10, 3 );

// Export the settings to JS via the _wpCustomizeSettings variable.
add_action( 'customize_controls_print_footer_scripts', array( $this, 'customize_pane_settings' ), 1000 );

// Add theme update notices.
if ( current_user_can( 'install_themes' ) || current_user_can( 'update_themes' ) ) {
require_once ABSPATH . 'wp-admin/includes/update.php';
add_action( 'customize_controls_print_footer_scripts', 'wp_print_admin_notice_templates' );
}
}

/**
* Returns true if it's an Ajax request.
*
* @since 3.4.0
* @since 4.2.0 Added `$action` param.
*
* @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 ) {
if ( ! wp_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 string|WP_Error $ajax_message Ajax return.
* @param string $message Optional. UI message.
*/
protected function wp_die( $ajax_message, $message = null ) {
if ( $this->doing_ajax() ) {
wp_die( $ajax_message );
}

if ( ! $message ) {
$message = __( 'An error occurred while customizing. Please refresh the page and try again.' );
}

if ( $this->messenger_channel ) {
ob_start();
wp_enqueue_scripts();
wp_print_scripts( array( 'customize-base' ) );

$settings = array(
'messengerArgs' => array(
'channel' => $this->messenger_channel,
'url' => wp_customize_url(),
),
'error' => $ajax_message,
);
$message .= ob_get_clean();
ob_start();
?>
<script>
( function( api, settings ) {
var preview = new api.Messenger( settings.messengerArgs );
preview.send( 'iframe-loading-error', settings.error );
} )( wp.customize, <?php echo wp_json_encode( $settings ); ?> );
</script>
<?php
$message .= wp_get_inline_script_tag( wp_remove_surrounding_empty_script_tags( ob_get_clean() ) );
}

wp_die( $message );
}

/**
* Returns the Ajax wp_die() handler if it's a customized request.
*
* @since 3.4.0
* @deprecated 4.7.0
*
* @return callable Die handler.
*/
public function wp_die_handler() {
_deprecated_function( __METHOD__, '4.7.0' );

if ( $this->doing_ajax() || isset( $_POST['customized'] ) ) {
return '_ajax_wp_die_handler';
}

return '_default_wp_die_handler';
}

/**
* Starts preview and customize theme.
*
* Check if customize query variable exist. Init filters to filter the active theme.
*
* @since 3.4.0
*
* @global string $pagenow The filename of the current screen.
*/
public function setup_theme() {
global $pagenow;

// Check permissions for customize.php access since this method is called before customize.php can run any code.
if ( 'customize.php' === $pagenow && ! current_user_can( 'customize' ) ) {
if ( ! is_user_logged_in() ) {
auth_redirect();
} else {
wp_die(
'<h1>' . __( 'You need a higher level of permission.' ) . '</h1>' .
'<p>' . __( 'Sorry, you are not allowed to customize this site.' ) . '</p>',
403
);
}
return;
}

// If a changeset was provided is invalid.
if ( isset( $this->_changeset_uuid ) && false !== $this->_changeset_uuid && ! wp_is_uuid( $this->_changeset_uuid ) ) {
$this->wp_die( -1, __( 'Invalid changeset UUID' ) );
}

/*
* Clear incoming post data if the user lacks a CSRF token (nonce). Note that the customizer
* application will inject the customize_preview_nonce query parameter into all Ajax requests.
* For similar behavior elsewhere in WordPress, see rest_cookie_check_errors() which logs out
* a user when a valid nonce isn't present.
*/
$has_post_data_nonce = (
check_ajax_referer( 'preview-customize_' . $this->get_stylesheet(), 'nonce', false )
||
check_ajax_referer( 'save-customize_' . $this->get_stylesheet(), 'nonce', false )
||
check_ajax_referer( 'preview-customize_' . $this->get_stylesheet(), 'customize_preview_nonce', false )
);
if ( ! current_user_can( 'customize' ) || ! $has_post_data_nonce ) {
unset( $_POST['customized'] );
unset( $_REQUEST['customized'] );
}

/*
* If unauthenticated then require a valid changeset UUID to load the preview.
* In this way, the UUID serves as a secret key. If the messenger channel is present,
* then send unauthenticated code to prompt re-auth.
*/
if ( ! current_user_can( 'customize' ) && ! $this->changeset_post_id() ) {
$this->wp_die( $this->messenger_channel ? 0 : -1, __( 'Non-existent changeset UUID.' ) );
}

if ( ! headers_sent() ) {
send_origin_headers();
}

// Hide the admin bar if we're embedded in the customizer iframe.
if ( $this->messenger_channel ) {
show_admin_bar( false );
}

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, __( 'Sorry, 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.' ) );
}
}

// Make sure changeset UUID is established immediately after the theme is loaded.
add_action( 'after_setup_theme', array( $this, 'establish_loaded_changeset' ), 5 );

/*
* Import theme starter content for fresh installations when landing in the customizer.
* Import starter content at after_setup_theme:100 so that any
* add_theme_support( 'starter-content' ) calls will have been made.
*/
if ( get_option( 'fresh_site' ) && 'customize.php' === $pagenow ) {
add_action( 'after_setup_theme', array( $this, 'import_theme_starter_content' ), 100 );
}

$this->start_previewing_theme();
}

/**
* Establishes the loaded changeset.
*
* This method runs right at after_setup_theme and applies the 'customize_changeset_branching' filter to determine
* whether concurrent changesets are allowed. Then if the Customizer is not initialized with a `changeset_uuid` param,
* this method will determine which UUID should be used. If changeset branching is disabled, then the most saved
* changeset will be loaded by default. Otherwise, if there are no existing saved changesets or if changeset branching is
* enabled, then a new UUID will be generated.
*
* @since 4.9.0
*
* @global string $pagenow The filename of the current screen.
*/
public function establish_loaded_changeset() {
global $pagenow;

if ( empty( $this->_changeset_uuid ) ) {
$changeset_uuid = null;

if ( ! $this->branching() && $this->is_theme_active() ) {
$unpublished_changeset_posts = $this->get_changeset_posts(
array(
'post_status' => array_diff( get_post_stati(), array( 'auto-draft', 'publish', 'trash', 'inherit', 'private' ) ),
'exclude_restore_dismissed' => false,
'author' => 'any',
'posts_per_page' => 1,
'order' => 'DESC',
'orderby' => 'date',
)
);
$unpublished_changeset_post = array_shift( $unpublished_changeset_posts );
if ( ! empty( $unpublished_changeset_post ) && wp_is_uuid( $unpublished_changeset_post->post_name ) ) {
$changeset_uuid = $unpublished_changeset_post->post_name;
}
}

// If no changeset UUID has been set yet, then generate a new one.
if ( empty( $changeset_uuid ) ) {
$changeset_uuid = wp_generate_uuid4();
}

$this->_changeset_uuid = $changeset_uuid;
}

if ( is_admin() && 'customize.php' === $pagenow ) {
$this->set_changeset_lock( $this->changeset_post_id() );
}
}

/**
* 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( $_POST['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 $manager WP_Customize_Manager instance.
*/
do_action( 'start_previewing_theme', $this );
}

/**
* Stops previewing the selected theme.
*
* Removes filters to change the active 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 $manager WP_Customize_Manager instance.
*/
do_action( 'stop_previewing_theme', $this );
}

/**
* Gets whether settings are or will be previewed.
*
* @since 4.9.0
*
* @see WP_Customize_Setting::preview()
*
* @return bool
*/
public function settings_previewed() {
return $this->settings_previewed;
}

/**
* Gets whether data from a changeset's autosaved revision should be loaded if it exists.
*
* @since 4.9.0
*
* @see WP_Customize_Manager::changeset_data()
*
* @return bool Is using autosaved changeset revision.
*/
public function autosaved() {
return $this->autosaved;
}

/**
* Whether the changeset branching is allowed.
*
* @since 4.9.0
*
* @see WP_Customize_Manager::establish_loaded_changeset()
*
* @return bool Is changeset branching.
*/
public function branching() {

/**
* Filters whether or not changeset branching is allowed.
*
* By default in core, when changeset branching is not allowed, changesets will operate
* linearly in that only one saved changeset will exist at a time (with a 'draft' or
* 'future' status). This makes the Customizer operate in a way that is similar to going to
* "edit" to one existing post: all users will be making changes to the same post, and autosave
* revisions will be made for that post.
*
* By contrast, when changeset branching is allowed, then the model is like users going
* to "add new" for a page and each user makes changes independently of each other since
* they are all operating on their own separate pages, each getting their own separate
* initial auto-drafts and then once initially saved, autosave revisions on top of that
* user's specific post.
*
* Since linear changesets are deemed to be more suitable for the majority of WordPress users,
* they are the default. For WordPress sites that have heavy site management in the Customizer
* by multiple users then branching changesets should be enabled by means of this filter.
*
* @since 4.9.0
*
* @param bool $allow_branching Whether branching is allowed. If `false`, the default,
* then only one saved changeset exists at a time.
* @param WP_Customize_Manager $wp_customize Manager instance.
*/
$this->branching = apply_filters( 'customize_changeset_branching', $this->branching, $this );

return $this->branching;
}

/**
* Gets the changeset UUID.
*
* @since 4.7.0
*
* @see WP_Customize_Manager::establish_loaded_changeset()
*
* @return string UUID.
*/
public function changeset_uuid() {
if ( empty( $this->_changeset_uuid ) ) {
$this->establish_loaded_changeset();
}
return $this->_changeset_uuid;
}

/**
* Gets 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;
}

/**
* Gets the registered settings.
*
* @since 3.4.0
*
* @return array
*/
public function settings() {
return $this->settings;
}

/**
* Gets the registered controls.
*
* @since 3.4.0
*
* @return array
*/
public function controls() {
return $this->controls;
}

/**
* Gets the registered containers.
*
* @since 4.0.0
*
* @return array
*/
public function containers() {
return $this->containers;
}

/**
* Gets the registered sections.
*
* @since 3.4.0
*
* @return array
*/
public function sections() {
return $this->sections;
}

/**
* Gets the registered panels.
*
* @since 4.0.0
*
* @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;
}

/**
* Registers styles/scripts and initialize the preview of each setting
*
* @since 3.4.0
*/
public function wp_loaded() {

/*
* Unconditionally register core types for panels, sections, and controls
* in case plugin unhooks all customize_register actions.
*/
$this->register_panel_type( 'WP_Customize_Panel' );
$this->register_panel_type( 'WP_Customize_Themes_Panel' );
$this->register_section_type( 'WP_Customize_Section' );
$this->register_section_type( 'WP_Customize_Sidebar_Section' );
$this->register_section_type( 'WP_Customize_Themes_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_Background_Position_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' );
$this->register_control_type( 'WP_Customize_Code_Editor_Control' );
$this->register_control_type( 'WP_Customize_Date_Time_Control' );

/**
* Fires once WordPress has loaded, allowing scripts and styles to be initialized.
*
* @since 3.4.0
*
* @param WP_Customize_Manager $manager WP_Customize_Manager instance.
*/
do_action( 'customize_register', $this );

if ( $this->settings_previewed() ) {
foreach ( $this->settings as $setting ) {
$setting->preview();
}
}

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
* @deprecated 4.7.0
*
* @param int $status Status.
* @return int
*/
public function wp_redirect_status( $status ) {
_deprecated_function( __FUNCTION__, '4.7.0' );

if ( $this->is_preview() && ! is_admin() ) {
return 200;
}

return $status;
}

/**
* Finds the changeset post ID for a given changeset UUID.
*
* @since 4.7.0
*
* @param string $uuid Changeset UUID.
* @return int|null Returns post ID on success and null on failure.
*/
public function find_changeset_post_id( $uuid ) {
$cache_group = 'customize_changeset_post';
$changeset_post_id = wp_cache_get( $uuid, $cache_group );
if ( $changeset_post_id && 'customize_changeset' === get_post_type( $changeset_post_id ) ) {
return $changeset_post_id;
}

$changeset_post_query = new WP_Query(
array(
'post_type' => 'customize_changeset',
'post_status' => get_post_stati(),
'name' => $uuid,
'posts_per_page' => 1,
'no_found_rows' => true,
'cache_results' => true,
'update_post_meta_cache' => false,
'update_post_term_cache' => false,
'lazy_load_term_meta' => false,
)
);
if ( ! empty( $changeset_post_query->posts ) ) {
// Note: 'fields'=>'ids' is not being used in order to cache the post object as it will be needed.
$changeset_post_id = $changeset_post_query->posts[0]->ID;
wp_cache_set( $uuid, $changeset_post_id, $cache_group );
return $changeset_post_id;
}

return null;
}

/**
* Gets changeset posts.
*
* @since 4.9.0
*
* @param array $args {
* Args to pass into `get_posts()` to query changesets.
*
* @type int $posts_per_page Number of posts to return. Defaults to -1 (all posts).
* @type int $author Post author. Defaults to current user.
* @type string $post_status Status of changeset. Defaults to 'auto-draft'.
* @type bool $exclude_restore_dismissed Whether to exclude changeset auto-drafts that have been dismissed. Defaults to true.
* }
* @return WP_Post[] Auto-draft changesets.
*/
protected function get_changeset_posts( $args = array() ) {
$default_args = array(
'exclude_restore_dismissed' => true,
'posts_per_page' => -1,
'post_type' => 'customize_changeset',
'post_status' => 'auto-draft',
'order' => 'DESC',
'orderby' => 'date',
'no_found_rows' => true,
'cache_results' => true,
'update_post_meta_cache' => false,
'update_post_term_cache' => false,
'lazy_load_term_meta' => false,
);
if ( get_current_user_id() ) {
$default_args['author'] = get_current_user_id();
}
$args = array_merge( $default_args, $args );

if ( ! empty( $args['exclude_restore_dismissed'] ) ) {
unset( $args['exclude_restore_dismissed'] );
$args['meta_query'] = array(
array(
'key' => '_customize_restore_dismissed',
'compare' => 'NOT EXISTS',
),
);
}

return get_posts( $args );
}

/**
* Dismisses all of the current user's auto-drafts (other than the present one).
*
* @since 4.9.0
* @return int The number of auto-drafts that were dismissed.
*/
protected function dismiss_user_auto_draft_changesets() {
$changeset_autodraft_posts = $this->get_changeset_posts(
array(
'post_status' => 'auto-draft',
'exclude_restore_dismissed' => true,
'posts_per_page' => -1,
)
);
$dismissed = 0;
foreach ( $changeset_autodraft_posts as $autosave_autodraft_post ) {
if ( $autosave_autodraft_post->ID === $this->changeset_post_id() ) {
continue;
}
if ( update_post_meta( $autosave_autodraft_post->ID, '_customize_restore_dismissed', true ) ) {
++$dismissed;
}
}
return $dismissed;
}

/**
* Gets the changeset post ID for the loaded changeset.
*
* @since 4.7.0
*
* @return int|null Post ID on success or null if there is no post yet saved.
*/
public function changeset_post_id() {
if ( ! isset( $this->_changeset_post_id ) ) {
$post_id = $this->find_changeset_post_id( $this->changeset_uuid() );
if ( ! $post_id ) {
$post_id = false;
}
$this->_changeset_post_id = $post_id;
}
if ( false === $this->_changeset_post_id ) {
return null;
}
return $this->_changeset_post_id;
}

/**
* Gets the data stored in a changeset post.
*
* @since 4.7.0
*
* @param int $post_id Changeset post ID.
* @return array|WP_Error Changeset data or WP_Error on error.
*/
protected function get_changeset_post_data( $post_id ) {
if ( ! $post_id ) {
return new WP_Error( 'empty_post_id' );
}
$changeset_post = get_post( $post_id );
if ( ! $changeset_post ) {
return new WP_Error( 'missing_post' );
}
if ( 'revision' === $changeset_post->post_type ) {
if ( 'customize_changeset' !== get_post_type( $changeset_post->post_parent ) ) {
return new WP_Error( 'wrong_post_type' );
}
} elseif ( 'customize_changeset' !== $changeset_post->post_type ) {
return new WP_Error( 'wrong_post_type' );
}
$changeset_data = json_decode( $changeset_post->post_content, true );
$last_error = json_last_error();
if ( $last_error ) {
return new WP_Error( 'json_parse_error', '', $last_error );
}
if ( ! is_array( $changeset_data ) ) {
return new WP_Error( 'expected_array' );
}
return $changeset_data;
}

/**
* Gets changeset data.
*
* @since 4.7.0
* @since 4.9.0 This will return the changeset's data with a user's autosave revision merged on top, if one exists and $autosaved is true.
*
* @return array Changeset data.
*/
public function changeset_data() {
if ( isset( $this->_changeset_data ) ) {
return $this->_changeset_data;
}
$changeset_post_id = $this->changeset_post_id();
if ( ! $changeset_post_id ) {
$this->_changeset_data = array();
} else {
if ( $this->autosaved() && is_user_logged_in() ) {
$autosave_post = wp_get_post_autosave( $changeset_post_id, get_current_user_id() );
if ( $autosave_post ) {
$data = $this->get_changeset_post_data( $autosave_post->ID );
if ( ! is_wp_error( $data ) ) {
$this->_changeset_data = $data;
}
}
}

// Load data from the changeset if it was not loaded from an autosave.
if ( ! isset( $this->_changeset_data ) ) {
$data = $this->get_changeset_post_data( $changeset_post_id );
if ( ! is_wp_error( $data ) ) {
$this->_changeset_data = $data;
} else {
$this->_changeset_data = array();
}
}
}
return $this->_changeset_data;
}

/**
* Starter content setting IDs.
*
* @since 4.7.0
* @var array
*/
protected $pending_starter_content_settings_ids = array();

/**
* Imports theme starter content into the customized state.
*
* @since 4.7.0
*
* @param array $starter_content Starter content. Defaults to `get_theme_starter_content()`.
*/
public function import_theme_starter_content( $starter_content = array() ) {
if ( empty( $starter_content ) ) {
$starter_content = get_theme_starter_content();
}

$changeset_data = array();
if ( $this->changeset_post_id() ) {
/*
* Don't re-import starter content into a changeset saved persistently.
* This will need to be revisited in the future once theme switching
* is allowed with drafted/scheduled changesets, since switching to
* another theme could result in more starter content being applied.
* However, when doing an explicit save it is currently possible for
* nav menus and nav menu items specifically to lose their starter_content
* flags, thus resulting in duplicates being created since they fail
* to get re-used. See #40146.
*/
if ( 'auto-draft' !== get_post_status( $this->changeset_post_id() ) ) {
return;
}

$changeset_data = $this->get_changeset_post_data( $this->changeset_post_id() );
}

$sidebars_widgets = isset( $starter_content['widgets'] ) && ! empty( $this->widgets ) ? $starter_content['widgets'] : array();
$attachments = isset( $starter_content['attachments'] ) && ! empty( $this->nav_menus ) ? $starter_content['attachments'] : array();
$posts = isset( $starter_content['posts'] ) && ! empty( $this->nav_menus ) ? $starter_content['posts'] : array();
$options = isset( $starter_content['options'] ) ? $starter_content['options'] : array();
$nav_menus = isset( $starter_content['nav_menus'] ) && ! empty( $this->nav_menus ) ? $starter_content['nav_menus'] : array();
$theme_mods = isset( $starter_content['theme_mods'] ) ? $starter_content['theme_mods'] : array();

// Widgets.
$max_widget_numbers = array();
foreach ( $sidebars_widgets as $sidebar_id => $widgets ) {
$sidebar_widget_ids = array();
foreach ( $widgets as $widget ) {
list( $id_base, $instance ) = $widget;

if ( ! isset( $max_widget_numbers[ $id_base ] ) ) {

// When $settings is an array-like object, get an intrinsic array for use with array_keys().
$settings = get_option( "widget_{$id_base}", array() );
if ( $settings instanceof ArrayObject || $settings instanceof ArrayIterator ) {
$settings = $settings->getArrayCopy();
}

unset( $settings['_multiwidget'] );

// Find the max widget number for this type.
$widget_numbers = array_keys( $settings );
if ( count( $widget_numbers ) > 0 ) {
$widget_numbers[] = 1;
$max_widget_numbers[ $id_base ] = max( ...$widget_numbers );
} else {
$max_widget_numbers[ $id_base ] = 1;
}
}
$max_widget_numbers[ $id_base ] += 1;

$widget_id = sprintf( '%s-%d', $id_base, $max_widget_numbers[ $id_base ] );
$setting_id = sprintf( 'widget_%s[%d]', $id_base, $max_widget_numbers[ $id_base ] );

$setting_value = $this->widgets->sanitize_widget_js_instance( $instance );
if ( empty( $changeset_data[ $setting_id ] ) || ! empty( $changeset_data[ $setting_id ]['starter_content'] ) ) {
$this->set_post_value( $setting_id, $setting_value );
$this->pending_starter_content_settings_ids[] = $setting_id;
}
$sidebar_widget_ids[] = $widget_id;
}

$setting_id = sprintf( 'sidebars_widgets[%s]', $sidebar_id );
if ( empty( $changeset_data[ $setting_id ] ) || ! empty( $changeset_data[ $setting_id ]['starter_content'] ) ) {
$this->set_post_value( $setting_id, $sidebar_widget_ids );
$this->pending_starter_content_settings_ids[] = $setting_id;
}
}

$starter_content_auto_draft_post_ids = array();
if ( ! empty( $changeset_data['nav_menus_created_posts']['value'] ) ) {
$starter_content_auto_draft_post_ids = array_merge( $starter_content_auto_draft_post_ids, $changeset_data['nav_menus_created_posts']['value'] );
}

// Make an index of all the posts needed and what their slugs are.
$needed_posts = array();
$attachments = $this->prepare_starter_content_attachments( $attachments );
foreach ( $attachments as $attachment ) {
$key = 'attachment:' . $attachment['post_name'];
$needed_posts[ $key ] = true;
}
foreach ( array_keys( $posts ) as $post_symbol ) {
if ( empty( $posts[ $post_symbol ]['post_name'] ) && empty( $posts[ $post_symbol ]['post_title'] ) ) {
unset( $posts[ $post_symbol ] );
continue;
}
if ( empty( $posts[ $post_symbol ]['post_name'] ) ) {
$posts[ $post_symbol ]['post_name'] = sanitize_title( $posts[ $post_symbol ]['post_title'] );
}
if ( empty( $posts[ $post_symbol ]['post_type'] ) ) {
$posts[ $post_symbol ]['post_type'] = 'post';
}
$needed_posts[ $posts[ $post_symbol ]['post_type'] . ':' . $posts[ $post_symbol ]['post_name'] ] = true;
}
$all_post_slugs = array_merge(
wp_list_pluck( $attachments, 'post_name' ),
wp_list_pluck( $posts, 'post_name' )
);

/*
* Obtain all post types referenced in starter content to use in query.
* This is needed because 'any' will not account for post types not yet registered.
*/
$post_types = array_filter( array_merge( array( 'attachment' ), wp_list_pluck( $posts, 'post_type' ) ) );

// Re-use auto-draft starter content posts referenced in the current customized state.
$existing_starter_content_posts = array();
if ( ! empty( $starter_content_auto_draft_post_ids ) ) {
$existing_posts_query = new WP_Query(
array(
'post__in' => $starter_content_auto_draft_post_ids,
'post_status' => 'auto-draft',
'post_type' => $post_types,
'posts_per_page' => -1,
)
);
foreach ( $existing_posts_query->posts as $existing_post ) {
$post_name = $existing_post->post_name;
if ( empty( $post_name ) ) {
$post_name = get_post_meta( $existing_post->ID, '_customize_draft_post_name', true );
}
$existing_starter_content_posts[ $existing_post->post_type . ':' . $post_name ] = $existing_post;
}
}

// Re-use non-auto-draft posts.
if ( ! empty( $all_post_slugs ) ) {
$existing_posts_query = new WP_Query(
array(
'post_name__in' => $all_post_slugs,
'post_status' => array_diff( get_post_stati(), array( 'auto-draft' ) ),
'post_type' => 'any',
'posts_per_page' => -1,
)
);
foreach ( $existing_posts_query->posts as $existing_post ) {
$key = $existing_post->post_type . ':' . $existing_post->post_name;
if ( isset( $needed_posts[ $key ] ) && ! isset( $existing_starter_content_posts[ $key ] ) ) {
$existing_starter_content_posts[ $key ] = $existing_post;
}
}
}

// Attachments are technically posts but handled differently.
if ( ! empty( $attachments ) ) {

$attachment_ids = array();

foreach ( $attachments as $symbol => $attachment ) {
$file_array = array(
'name' => $attachment['file_name'],
);
$file_path = $attachment['file_path'];
$attachment_id = null;
$attached_file = null;
if ( isset( $existing_starter_content_posts[ 'attachment:' . $attachment['post_name'] ] ) ) {
$attachment_post = $existing_starter_content_posts[ 'attachment:' . $attachment['post_name'] ];
$attachment_id = $attachment_post->ID;
$attached_file = get_attached_file( $attachment_id );
if ( empty( $attached_file ) || ! file_exists( $attached_file ) ) {
$attachment_id = null;
$attached_file = null;
} elseif ( $this->get_stylesheet() !== get_post_meta( $attachment_post->ID, '_starter_content_theme', true ) ) {

// Re-generate attachment metadata since it was previously generated for a different theme.
$metadata = wp_generate_attachment_metadata( $attachment_post->ID, $attached_file );
wp_update_attachment_metadata( $attachment_id, $metadata );
update_post_meta( $attachment_id, '_starter_content_theme', $this->get_stylesheet() );
}
}

// Insert the attachment auto-draft because it doesn't yet exist or the attached file is gone.
if ( ! $attachment_id ) {

// Copy file to temp location so that original file won't get deleted from theme after sideloading.
$temp_file_name = wp_tempnam( wp_basename( $file_path ) );
if ( $temp_file_name && copy( $file_path, $temp_file_name ) ) {
$file_array['tmp_name'] = $temp_file_name;
}
if ( empty( $file_array['tmp_name'] ) ) {
continue;
}

$attachment_post_data = array_merge(
wp_array_slice_assoc( $attachment, array( 'post_title', 'post_content', 'post_excerpt' ) ),
array(
'post_status' => 'auto-draft', // So attachment will be garbage collected in a week if changeset is never published.
)
);

$attachment_id = media_handle_sideload( $file_array, 0, null, $attachment_post_data );
if ( is_wp_error( $attachment_id ) ) {
continue;
}
update_post_meta( $attachment_id, '_starter_content_theme', $this->get_stylesheet() );
update_post_meta( $attachment_id, '_customize_draft_post_name', $attachment['post_name'] );
}

$attachment_ids[ $symbol ] = $attachment_id;
}
$starter_content_auto_draft_post_ids = array_merge( $starter_content_auto_draft_post_ids, array_values( $attachment_ids ) );
}

// Posts & pages.
if ( ! empty( $posts ) ) {
foreach ( array_keys( $posts ) as $post_symbol ) {
if ( empty( $posts[ $post_symbol ]['post_type'] ) || empty( $posts[ $post_symbol ]['post_name'] ) ) {
continue;
}
$post_type = $posts[ $post_symbol ]['post_type'];
if ( ! empty( $posts[ $post_symbol ]['post_name'] ) ) {
$post_name = $posts[ $post_symbol ]['post_name'];
} elseif ( ! empty( $posts[ $post_symbol ]['post_title'] ) ) {
$post_name = sanitize_title( $posts[ $post_symbol ]['post_title'] );
} else {
continue;
}

// Use existing auto-draft post if one already exists with the same type and name.
if ( isset( $existing_starter_content_posts[ $post_type . ':' . $post_name ] ) ) {
$posts[ $post_symbol ]['ID'] = $existing_starter_content_posts[ $post_type . ':' . $post_name ]->ID;
continue;
}

// Translate the featured image symbol.
if ( ! empty( $posts[ $post_symbol ]['thumbnail'] )
&& preg_match( '/^{{(?P<symbol>.+)}}$/', $posts[ $post_symbol ]['thumbnail'], $matches )
&& isset( $attachment_ids[ $matches['symbol'] ] ) ) {
$posts[ $post_symbol ]['meta_input']['_thumbnail_id'] = $attachment_ids[ $matches['symbol'] ];
}

if ( ! empty( $posts[ $post_symbol ]['template'] ) ) {
$posts[ $post_symbol ]['meta_input']['_wp_page_template'] = $posts[ $post_symbol ]['template'];
}

$r = $this->nav_menus->insert_auto_draft_post( $posts[ $post_symbol ] );
if ( $r instanceof WP_Post ) {
$posts[ $post_symbol ]['ID'] = $r->ID;
}
}

$starter_content_auto_draft_post_ids = array_merge( $starter_content_auto_draft_post_ids, wp_list_pluck( $posts, 'ID' ) );
}

// The nav_menus_created_posts setting is why nav_menus component is dependency for adding posts.
if ( ! empty( $this->nav_menus ) && ! empty( $starter_content_auto_draft_post_ids ) ) {
$setting_id = 'nav_menus_created_posts';
$this->set_post_value( $setting_id, array_unique( array_values( $starter_content_auto_draft_post_ids ) ) );
$this->pending_starter_content_settings_ids[] = $setting_id;
}

// Nav menus.
$placeholder_id = -1;
$reused_nav_menu_setting_ids = array();
foreach ( $nav_menus as $nav_menu_location => $nav_menu ) {

$nav_menu_term_id = null;
$nav_menu_setting_id = null;
$matches = array();

// Look for an existing placeholder menu with starter content to re-use.
foreach ( $changeset_data as $setting_id => $setting_params ) {
$can_reuse = (
! empty( $setting_params['starter_content'] )
&&
! in_array( $setting_id, $reused_nav_menu_setting_ids, true )
&&
preg_match( '#^nav_menu\[(?P<nav_menu_id>-?\d+)\]$#', $setting_id, $matches )
);
if ( $can_reuse ) {
$nav_menu_term_id = (int) $matches['nav_menu_id'];
$nav_menu_setting_id = $setting_id;
$reused_nav_menu_setting_ids[] = $setting_id;
break;
}
}

if ( ! $nav_menu_term_id ) {
while ( isset( $changeset_data[ sprintf( 'nav_menu[%d]', $placeholder_id ) ] ) ) {
--$placeholder_id;
}
$nav_menu_term_id = $placeholder_id;
$nav_menu_setting_id = sprintf( 'nav_menu[%d]', $placeholder_id );
}

$this->set_post_value(
$nav_menu_setting_id,
array(
'name' => isset( $nav_menu['name'] ) ? $nav_menu['name'] : $nav_menu_location,
)
);
$this->pending_starter_content_settings_ids[] = $nav_menu_setting_id;

// @todo Add support for menu_item_parent.
$position = 0;
foreach ( $nav_menu['items'] as $nav_menu_item ) {
$nav_menu_item_setting_id = sprintf( 'nav_menu_item[%d]', $placeholder_id-- );
if ( ! isset( $nav_menu_item['position'] ) ) {
$nav_menu_item['position'] = $position++;
}
$nav_menu_item['nav_menu_term_id'] = $nav_menu_term_id;

if ( isset( $nav_menu_item['object_id'] ) ) {
if ( 'post_type' === $nav_menu_item['type'] && preg_match( '/^{{(?P<symbol>.+)}}$/', $nav_menu_item['object_id'], $matches ) && isset( $posts[ $matches['symbol'] ] ) ) {
$nav_menu_item['object_id'] = $posts[ $matches['symbol'] ]['ID'];
if ( empty( $nav_menu_item['title'] ) ) {
$original_object = get_post( $nav_menu_item['object_id'] );
$nav_menu_item['title'] = $original_object->post_title;
}
} else {
continue;
}
} else {
$nav_menu_item['object_id'] = 0;
}

if ( empty( $changeset_data[ $nav_menu_item_setting_id ] ) || ! empty( $changeset_data[ $nav_menu_item_setting_id ]['starter_content'] ) ) {
$this->set_post_value( $nav_menu_item_setting_id, $nav_menu_item );
$this->pending_starter_content_settings_ids[] = $nav_menu_item_setting_id;
}
}

$setting_id = sprintf( 'nav_menu_locations[%s]', $nav_menu_location );
if ( empty( $changeset_data[ $setting_id ] ) || ! empty( $changeset_data[ $setting_id ]['starter_content'] ) ) {
$this->set_post_value( $setting_id, $nav_menu_term_id );
$this->pending_starter_content_settings_ids[] = $setting_id;
}
}

// Options.
foreach ( $options as $name => $value ) {

// Serialize the value to check for post symbols.
$value = maybe_serialize( $value );

if ( is_serialized( $value ) ) {
if ( preg_match( '/s:\d+:"{{(?P<symbol>.+)}}"/', $value, $matches ) ) {
if ( isset( $posts[ $matches['symbol'] ] ) ) {
$symbol_match = $posts[ $matches['symbol'] ]['ID'];
} elseif ( isset( $attachment_ids[ $matches['symbol'] ] ) ) {
$symbol_match = $attachment_ids[ $matches['symbol'] ];
}

// If we have any symbol matches, update the values.
if ( isset( $symbol_match ) ) {
// Replace found string matches with post IDs.
$value = str_replace( $matches[0], "i:{$symbol_match}", $value );
} else {
continue;
}
}
} elseif ( preg_match( '/^{{(?P<symbol>.+)}}$/', $value, $matches ) ) {
if ( isset( $posts[ $matches['symbol'] ] ) ) {
$value = $posts[ $matches['symbol'] ]['ID'];
} elseif ( isset( $attachment_ids[ $matches['symbol'] ] ) ) {
$value = $attachment_ids[ $matches['symbol'] ];
} else {
continue;
}
}

// Unserialize values after checking for post symbols, so they can be properly referenced.
$value = maybe_unserialize( $value );

if ( empty( $changeset_data[ $name ] ) || ! empty( $changeset_data[ $name ]['starter_content'] ) ) {
$this->set_post_value( $name, $value );
$this->pending_starter_content_settings_ids[] = $name;
}
}

// Theme mods.
foreach ( $theme_mods as $name => $value ) {

// Serialize the value to check for post symbols.
$value = maybe_serialize( $value );

// Check if value was serialized.
if ( is_serialized( $value ) ) {
if ( preg_match( '/s:\d+:"{{(?P<symbol>.+)}}"/', $value, $matches ) ) {
if ( isset( $posts[ $matches['symbol'] ] ) ) {
$symbol_match = $posts[ $matches['symbol'] ]['ID'];
} elseif ( isset( $attachment_ids[ $matches['symbol'] ] ) ) {
$symbol_match = $attachment_ids[ $matches['symbol'] ];
}

// If we have any symbol matches, update the values.
if ( isset( $symbol_match ) ) {
// Replace found string matches with post IDs.
$value = str_replace( $matches[0], "i:{$symbol_match}", $value );
} else {
continue;
}
}
} elseif ( preg_match( '/^{{(?P<symbol>.+)}}$/', $value, $matches ) ) {
if ( isset( $posts[ $matches['symbol'] ] ) ) {
$value = $posts[ $matches['symbol'] ]['ID'];
} elseif ( isset( $attachment_ids[ $matches['symbol'] ] ) ) {
$value = $attachment_ids[ $matches['symbol'] ];
} else {
continue;
}
}

// Unserialize values after checking for post symbols, so they can be properly referenced.
$value = maybe_unserialize( $value );

// Handle header image as special case since setting has a legacy format.
if ( 'header_image' === $name ) {
$name = 'header_image_data';
$metadata = wp_get_attachment_metadata( $value );
if ( empty( $metadata ) ) {
continue;
}
$value = array(
'attachment_id' => $value,
'url' => wp_get_attachment_url( $value ),
'height' => $metadata['height'],
'width' => $metadata['width'],
);
} elseif ( 'background_image' === $name ) {
$value = wp_get_attachment_url( $value );
}

if ( empty( $changeset_data[ $name ] ) || ! empty( $changeset_data[ $name ]['starter_content'] ) ) {
$this->set_post_value( $name, $value );
$this->pending_starter_content_settings_ids[] = $name;
}
}

if ( ! empty( $this->pending_starter_content_settings_ids ) ) {
if ( did_action( 'customize_register' ) ) {
$this->_save_starter_content_changeset();
} else {
add_action( 'customize_register', array( $this, '_save_starter_content_changeset' ), 1000 );
}
}
}

/**
* Prepares starter content attachments.
*
* Ensure that the attachments are valid and that they have slugs and file name/path.
*
* @since 4.7.0
*
* @param array $attachments Attachments.
* @return array Prepared attachments.
*/
protected function prepare_starter_content_attachments( $attachments ) {
$prepared_attachments = array();
if ( empty( $attachments ) ) {
return $prepared_attachments;
}

// Such is The WordPress Way.
require_once ABSPATH . 'wp-admin/includes/file.php';
require_once ABSPATH . 'wp-admin/includes/media.php';
require_once ABSPATH . 'wp-admin/includes/image.php';

foreach ( $attachments as $symbol => $attachment ) {

// A file is required and URLs to files are not currently allowed.
if ( empty( $attachment['file'] ) || preg_match( '#^https?://$#', $attachment['file'] ) ) {
continue;
}

$file_path = null;
if ( file_exists( $attachment['file'] ) ) {
$file_path = $attachment['file']; // Could be absolute path to file in plugin.
} elseif ( is_child_theme() && file_exists( get_stylesheet_directory() . '/' . $attachment['file'] ) ) {
$file_path = get_stylesheet_directory() . '/' . $attachment['file'];
} elseif ( file_exists( get_template_directory() . '/' . $attachment['file'] ) ) {
$file_path = get_template_directory() . '/' . $attachment['file'];
} else {
continue;
}
$file_name = wp_basename( $attachment['file'] );

// Skip file types that are not recognized.
$checked_filetype = wp_check_filetype( $file_name );
if ( empty( $checked_filetype['type'] ) ) {
continue;
}

// Ensure post_name is set since not automatically derived from post_title for new auto-draft posts.
if ( empty( $attachment['post_name'] ) ) {
if ( ! empty( $attachment['post_title'] ) ) {
$attachment['post_name'] = sanitize_title( $attachment['post_title'] );
} else {
$attachment['post_name'] = sanitize_title( preg_replace( '/\.\w+$/', '', $file_name ) );
}
}

$attachment['file_name'] = $file_name;
$attachment['file_path'] = $file_path;
$prepared_attachments[ $symbol ] = $attachment;
}
return $prepared_attachments;
}

/**
* Saves starter content changeset.
*
* @since 4.7.0
*/
public function _save_starter_content_changeset() {

if ( empty( $this->pending_starter_content_settings_ids ) ) {
return;
}

$this->save_changeset_post(
array(
'data' => array_fill_keys( $this->pending_starter_content_settings_ids, array( 'starter_content' => true ) ),
'starter_content' => true,
)
);
$this->saved_starter_content_changeset = true;

$this->pending_starter_content_settings_ids = array();
}

/**
* Gets dirty pre-sanitized setting values in the current customized state.
*
* The returned array consists of a merge of three sources:
* 1. If the theme is not currently active, then the base array is any stashed
* theme mods that were modified previously but never published.
* 2. The values from the current changeset, if it exists.
* 3. If the user can customize, the values parsed from the incoming
* `$_POST['customized']` JSON data.
* 4. Any programmatically-set post values via `WP_Customize_Manager::set_post_value()`.
*
* The name "unsanitized_post_values" is a carry-over from when the customized
* state was exclusively sourced from `$_POST['customized']`. Nevertheless,
* the value returned will come from the current changeset post and from the
* incoming post data.
*
* @since 4.1.1
* @since 4.7.0 Added `$args` parameter and merging with changeset values and stashed theme mods.
*
* @param array $args {
* Args.
*
* @type bool $exclude_changeset Whether the changeset values should also be excluded. Defaults to false.
* @type bool $exclude_post_data Whether the post input values should also be excluded. Defaults to false when lacking the customize capability.
* }
* @return array
*/
public function unsanitized_post_values( $args = array() ) {
$args = array_merge(
array(
'exclude_changeset' => false,
'exclude_post_data' => ! current_user_can( 'customize' ),
),
$args
);

$values = array();

// Let default values be from the stashed theme mods if doing a theme switch and if no changeset is present.
if ( ! $this->is_theme_active() ) {
$stashed_theme_mods = get_option( 'customize_stashed_theme_mods' );
$stylesheet = $this->get_stylesheet();
if ( isset( $stashed_theme_mods[ $stylesheet ] ) ) {
$values = array_merge( $values, wp_list_pluck( $stashed_theme_mods[ $stylesheet ], 'value' ) );
}
}

if ( ! $args['exclude_changeset'] ) {
foreach ( $this->changeset_data() as $setting_id => $setting_params ) {
if ( ! array_key_exists( 'value', $setting_params ) ) {
continue;
}
if ( isset( $setting_params['type'] ) && 'theme_mod' === $setting_params['type'] ) {

// Ensure that theme mods values are only used if they were saved under the active theme.
$namespace_pattern = '/^(?P<stylesheet>.+?)::(?P<setting_id>.+)$/';
if ( preg_match( $namespace_pattern, $setting_id, $matches ) && $this->get_stylesheet() === $matches['stylesheet'] ) {
$values[ $matches['setting_id'] ] = $setting_params['value'];
}
} else {
$values[ $setting_id ] = $setting_params['value'];
}
}
}

if ( ! $args['exclude_post_data'] ) {
if ( ! isset( $this->_post_values ) ) {
if ( isset( $_POST['customized'] ) ) {
$post_values = json_decode( wp_unslash( $_POST['customized'] ), true );
} else {
$post_values = array();
}
if ( is_array( $post_values ) ) {
$this->_post_values = $post_values;
} else {
$this->_post_values = array();
}
}
$values = array_merge( $values, $this->_post_values );
}
return $values;
}

/**
* Returns the sanitized value for a given setting from the current customized state.
*
* The name "post_value" is a carry-over from when the customized state was exclusively
* sourced from `$_POST['customized']`. Nevertheless, the value returned will come
* from the current changeset post and from the incoming post data.
*
* @since 3.4.0
* @since 4.1.1 Introduced the `$default_value` parameter.
* @since 4.6.0 `$default_value` is now returned early when the setting post value is invalid.
*
* @see WP_REST_Server::dispatch()
* @see WP_REST_Request::sanitize_params()
* @see WP_REST_Request::has_valid_params()
*
* @param WP_Customize_Setting $setting A WP_Customize_Setting derived object.
* @param mixed $default_value Value returned if `$setting` has no post value (added in 4.2.0)
* or the post value is invalid (added in 4.6.0).
* @return string|mixed Sanitized value or the `$default_value` provided.
*/
public function post_value( $setting, $default_value = null ) {
$post_values = $this->unsanitized_post_values();
if ( ! array_key_exists( $setting->id, $post_values ) ) {
return $default_value;
}

$value = $post_values[ $setting->id ];
$valid = $setting->validate( $value );
if ( is_wp_error( $valid ) ) {
return $default_value;
}

$value = $setting->sanitize( $value );
if ( is_null( $value ) || is_wp_error( $value ) ) {
return $default_value;
}

return $value;
}

/**
* Overrides a setting's value in the current customized state.
*
* The name "post_value" is a carry-over from when the customized state was
* exclusively sourced from `$_POST['customized']`.
*
* @since 4.2.0
*
* @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(); // Populate _post_values from $_POST['customized'].
$this->_post_values[ $setting_id ] = $value;

/**
* Announces when a specific setting's unsanitized post value has been set.
*
* Fires when the 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 $manager WP_Customize_Manager instance.
*/
do_action( "customize_post_value_set_{$setting_id}", $value, $this );

/**
* Announces when any setting's unsanitized post value has been set.
*
* Fires when the WP_Customize_Manager::set_post_value() method is called.
*
* This is useful for `WP_Customize_Setting` 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 $manager WP_Customize_Manager instance.
*/
do_action( 'customize_post_value_set', $setting_id, $value, $this );
}

/**
* Prints JavaScript settings.
*
* @since 3.4.0
*/
public function customize_preview_init() {

/*
* Now that Customizer previews are loaded into iframes via GET requests
* and natural URLs with transaction UUIDs added, we need to ensure that
* the responses are never cached by proxies. In practice, this will not
* be needed if the user is logged-in anyway. But if anonymous access is
* allowed then the auth cookies would not be sent and WordPress would
* not send no-cache headers by default.
*/
if ( ! headers_sent() ) {
nocache_headers();
header( 'X-Robots: noindex, nofollow, noarchive' );
header( 'X-Robots-Tag: noindex, nofollow, noarchive' );
}
add_filter( 'wp_robots', 'wp_robots_no_robots' );
add_filter( 'wp_headers', array( $this, 'filter_iframe_security_headers' ) );

/*
* If preview is being served inside the customizer preview iframe, and
* if the user doesn't have customize capability, then it is assumed
* that the user's session has expired and they need to re-authenticate.
*/
if ( $this->messenger_channel && ! current_user_can( 'customize' ) ) {
$this->wp_die(
-1,
sprintf(
/* translators: %s: customize_messenger_channel */
__( 'Unauthorized. You may remove the %s param to preview as frontend.' ),
'<code>customize_messenger_channel<code>'
)
);
return;
}

$this->prepare_controls();

add_filter( 'wp_redirect', array( $this, 'add_state_query_params' ) );

wp_enqueue_script( 'customize-preview' );
wp_enqueue_style( 'customize-preview' );
add_action( 'wp_head', array( $this, 'customize_preview_loading_style' ) );
add_action( 'wp_head', array( $this, 'remove_frameless_preview_messenger_channel' ) );
add_action( 'wp_footer', array( $this, 'customize_preview_settings' ), 20 );
add_filter( 'get_edit_post_link', '__return_empty_string' );

/**
* Fires once the Customizer preview has initialized and JavaScript
* settings have been printed.
*
* @since 3.4.0
*
* @param WP_Customize_Manager $manager WP_Customize_Manager instance.
*/
do_action( 'customize_preview_init', $this );
}

/**
* Filters the X-Frame-Options and Content-Security-Policy headers to ensure frontend can load in customizer.
*
* @since 4.7.0
*
* @param array $headers Headers.
* @return array Headers.
*/
public function filter_iframe_security_headers( $headers ) {
$headers['X-Frame-Options'] = 'SAMEORIGIN';
$headers['Content-Security-Policy'] = "frame-ancestors 'self'";
return $headers;
}

/**
* Adds customize state query params to a given URL if preview is allowed.
*
* @since 4.7.0
*
* @see wp_redirect()
* @see WP_Customize_Manager::get_allowed_url()
*
* @param string $url URL.
* @return string URL.
*/
public function add_state_query_params( $url ) {
$parsed_original_url = wp_parse_url( $url );
$is_allowed = false;
foreach ( $this->get_allowed_urls() as $allowed_url ) {
$parsed_allowed_url = wp_parse_url( $allowed_url );
$is_allowed = (
$parsed_allowed_url['scheme'] === $parsed_original_url['scheme']
&&
$parsed_allowed_url['host'] === $parsed_original_url['host']
&&
str_starts_with( $parsed_original_url['path'], $parsed_allowed_url['path'] )
);
if ( $is_allowed ) {
break;
}
}

if ( $is_allowed ) {
$query_params = array(
'customize_changeset_uuid' => $this->changeset_uuid(),
);
if ( ! $this->is_theme_active() ) {
$query_params['customize_theme'] = $this->get_stylesheet();
}
if ( $this->messenger_channel ) {
$query_params['customize_messenger_channel'] = $this->messenger_channel;
}
$url = add_query_arg( $query_params, $url );
}

return $url;
}

/**
* Prevents 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
* @deprecated 4.7.0
*/
public function customize_preview_override_404_status() {
_deprecated_function( __METHOD__, '4.7.0' );
}

/**
* Prints base element for preview frame.
*
* @since 3.4.0
* @deprecated 4.7.0
*/
public function customize_preview_base() {
_deprecated_function( __METHOD__, '4.7.0' );
}

/**
* Prints a workaround to handle HTML5 tags in IE < 9.
*
* @since 3.4.0
* @deprecated 4.7.0 Customizer no longer supports IE8, so all supported browsers recognize HTML5.
*/
public function customize_preview_html5() {
_deprecated_function( __FUNCTION__, '4.7.0' );
}

/**
* Prints CSS for loading indicators for the Customizer preview.
*
* @since 4.2.0
*/
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;
}
form.customize-unpreviewable,
form.customize-unpreviewable input,
form.customize-unpreviewable select,
form.customize-unpreviewable button,
a.customize-unpreviewable,
area.customize-unpreviewable {
cursor: not-allowed !important;
}
</style>
<?php
}

/**
* Removes customize_messenger_channel query parameter from the preview window when it is not in an iframe.
*
* This ensures that the admin bar will be shown. It also ensures that link navigation will
* work as expected since the parent frame is not being sent the URL to navigate to.
*
* @since 4.7.0
*/
public function remove_frameless_preview_messenger_channel() {
if ( ! $this->messenger_channel ) {
return;
}
ob_start();
?>
<script>
( function() {
if ( parent !== window ) {
return;
}
const url = new URL( location.href );
if ( url.searchParams.has( 'customize_messenger_channel' ) ) {
url.searchParams.delete( 'customize_messenger_channel' );
location.replace( url );
}
} )();
</script>
<?php
wp_print_inline_script_tag( wp_remove_surrounding_empty_script_tags( ob_get_clean() ) );
}

/**
* Prints JavaScript settings for preview frame.
*
* @since 3.4.0
*/
public function customize_preview_settings() {
$post_values = $this->unsanitized_post_values( array( 'exclude_changeset' => true ) );
$setting_validities = $this->validate_setting_values( $post_values );
$exported_setting_validities = array_map( array( $this, 'prepare_setting_validity_for_js' ), $setting_validities );

// Note that the REQUEST_URI is not passed into home_url() since this breaks subdirectory installations.
$self_url = empty( $_SERVER['REQUEST_URI'] ) ? home_url( '/' ) : sanitize_url( wp_unslash( $_SERVER['REQUEST_URI'] ) );
$state_query_params = array(
'customize_theme',
'customize_changeset_uuid',
'customize_messenger_channel',
);
$self_url = remove_query_arg( $state_query_params, $self_url );

$allowed_urls = $this->get_allowed_urls();
$allowed_hosts = array();
foreach ( $allowed_urls as $allowed_url ) {
$parsed = wp_parse_url( $allowed_url );
if ( empty( $parsed['host'] ) ) {
continue;
}
$host = $parsed['host'];
if ( ! empty( $parsed['port'] ) ) {
$host .= ':' . $parsed['port'];
}
$allowed_hosts[] = $host;
}

$switched_locale = switch_to_user_locale( get_current_user_id() );
$l10n = array(
'shiftClickToEdit' => __( 'Shift-click to edit this element.' ),
'linkUnpreviewable' => __( 'This link is not live-previewable.' ),
'formUnpreviewable' => __( 'This form is not live-previewable.' ),
);
if ( $switched_locale ) {
restore_previous_locale();
}

$settings = array(
'changeset' => array(
'uuid' => $this->changeset_uuid(),
'autosaved' => $this->autosaved(),
),
'timeouts' => array(
'selectiveRefresh' => 250,
'keepAliveSend' => 1000,
),
'theme' => array(
'stylesheet' => $this->get_stylesheet(),
'active' => $this->is_theme_active(),
),
'url' => array(
'self' => $self_url,
'allowed' => array_map( 'sanitize_url', $this->get_allowed_urls() ),
'allowedHosts' => array_unique( $allowed_hosts ),
'isCrossDomain' => $this->is_cross_domain(),
),
'channel' => $this->messenger_channel,
'activePanels' => array(),
'activeSections' => array(),
'activeControls' => array(),
'settingValidities' => $exported_setting_validities,
'nonce' => current_user_can( 'customize' ) ? $this->get_nonces() : array(),
'l10n' => $l10n,
'_dirty' => array_keys( $post_values ),
);

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();
}
}

ob_start();
?>
<script>
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
wp_print_inline_script_tag( wp_remove_surrounding_empty_script_tags( ob_get_clean() ) );
}

/**
* Prints a signature so we can ensure the Customizer was properly executed.
*
* @since 3.4.0
* @deprecated 4.7.0
*/
public function customize_preview_signature() {
_deprecated_function( __METHOD__, '4.7.0' );
}

/**
* Removes the signature in case we experience a case where the Customizer was not properly executed.
*
* @since 3.4.0
* @deprecated 4.7.0
*
* @param callable|null $callback Optional. Value passed through for {@see 'wp_die_handler'} filter.
* Default null.
* @return callable|null Value passed through for {@see 'wp_die_handler'} filter.
*/
public function remove_preview_signature( $callback = null ) {
_deprecated_function( __METHOD__, '4.7.0' );

return $callback;
}

/**
* Determines whether it is a theme preview or not.
*
* @since 3.4.0
*
* @return bool True if it's a preview, false if not.
*/
public function is_preview() {
return (bool) $this->previewing;
}

/**
* Retrieves the template name of the previewed theme.
*
* @since 3.4.0
*
* @return string Template name.
*/
public function get_template() {
return $this->theme()->get_template();
}

/**
* Retrieves the stylesheet name of the previewed theme.
*
* @since 3.4.0
*
* @return string Stylesheet name.
*/
public function get_stylesheet() {
return $this->theme()->get_stylesheet();
}

/**
* Retrieves 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 );
}

/**
* Retrieves 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 );
}

/**
* Filters the active theme and return the name of the previewed theme.
*
* @since 3.4.0
*
* @param mixed $current_theme {@internal Parameter is not used}
* @return string Theme name.
*/
public function current_theme( $current_theme ) {
return $this->theme()->display( 'Name' );
}

/**
* Validates setting values.
*
* Validation is skipped for unregistered settings or for values that are
* already null since they will be skipped anyway. Sanitization is applied
* to values that pass validation, and values that become null or `WP_Error`
* after sanitizing are marked invalid.
*
* @since 4.6.0
*
* @see WP_REST_Request::has_valid_params()
* @see WP_Customize_Setting::validate()
*
* @param array $setting_values Mapping of setting IDs to values to validate and sanitize.
* @param array $options {
* Options.
*
* @type bool $validate_existence Whether a setting's existence will be checked.
* @type bool $validate_capability Whether the setting capability will be checked.
* }
* @return array Mapping of setting IDs to return value of validate method calls, either `true` or `WP_Error`.
*/
public function validate_setting_values( $setting_values, $options = array() ) {
$options = wp_parse_args(
$options,
array(
'validate_capability' => false,
'validate_existence' => false,
)
);

$validities = array();
foreach ( $setting_values as $setting_id => $unsanitized_value ) {
$setting = $this->get_setting( $setting_id );
if ( ! $setting ) {
if ( $options['validate_existence'] ) {
$validities[ $setting_id ] = new WP_Error( 'unrecognized', __( 'Setting does not exist or is unrecognized.' ) );
}
continue;
}
if ( $options['validate_capability'] && ! current_user_can( $setting->capability ) ) {
$validity = new WP_Error( 'unauthorized', __( 'Unauthorized to modify setting due to capability.' ) );
} else {
if ( is_null( $unsanitized_value ) ) {
continue;
}
$validity = $setting->validate( $unsanitized_value );
}
if ( ! is_wp_error( $validity ) ) {
/** This filter is documented in wp-includes/class-wp-customize-setting.php */
$late_validity = apply_filters( "customize_validate_{$setting->id}", new WP_Error(), $unsanitized_value, $setting );
if ( is_wp_error( $late_validity ) && $late_validity->has_errors() ) {
$validity = $late_validity;
}
}
if ( ! is_wp_error( $validity ) ) {
$value = $setting->sanitize( $unsanitized_value );
if ( is_null( $value ) ) {
$validity = false;
} elseif ( is_wp_error( $value ) ) {
$validity = $value;
}
}
if ( false === $validity ) {
$validity = new WP_Error( 'invalid_value', __( 'Invalid value.' ) );
}
$validities[ $setting_id ] = $validity;
}
return $validities;
}

/**
* Prepares setting validity for exporting to the client (JS).
*
* Converts `WP_Error` instance into array suitable for passing into the
* `wp.customize.Notification` JS model.
*
* @since 4.6.0
*
* @param true|WP_Error $validity Setting validity.
* @return true|array If `$validity` was a WP_Error, the error codes will be array-mapped
* to their respective `message` and `data` to pass into the
* `wp.customize.Notification` JS model.
*/
public function prepare_setting_validity_for_js( $validity ) {
if ( is_wp_error( $validity ) ) {
$notification = array();
foreach ( $validity->errors as $error_code => $error_messages ) {
$notification[ $error_code ] = array(
'message' => implode( ' ', $error_messages ),
'data' => $validity->get_error_data( $error_code ),
);
}
return $notification;
} else {
return true;
}
}

/**
* Handles customize_save WP Ajax request to save/update a changeset.
*
* @since 3.4.0
* @since 4.7.0 The semantics of this method have changed to update a changeset, optionally to also change the status and other attributes.
*/
public function save() {
if ( ! is_user_logged_in() ) {
wp_send_json_error( 'unauthenticated' );
}

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' );
}

$changeset_post_id = $this->changeset_post_id();
$is_new_changeset = empty( $changeset_post_id );
if ( $is_new_changeset ) {
if ( ! current_user_can( get_post_type_object( 'customize_changeset' )->cap->create_posts ) ) {
wp_send_json_error( 'cannot_create_changeset_post' );
}
} else {
if ( ! current_user_can( get_post_type_object( 'customize_changeset' )->cap->edit_post, $changeset_post_id ) ) {
wp_send_json_error( 'cannot_edit_changeset_post' );
}
}

if ( ! empty( $_POST['customize_changeset_data'] ) ) {
$input_changeset_data = json_decode( wp_unslash( $_POST['customize_changeset_data'] ), true );
if ( ! is_array( $input_changeset_data ) ) {
wp_send_json_error( 'invalid_customize_changeset_data' );
}
} else {
$input_changeset_data = array();
}

// Validate title.
$changeset_title = null;
if ( isset( $_POST['customize_changeset_title'] ) ) {
$changeset_title = sanitize_text_field( wp_unslash( $_POST['customize_changeset_title'] ) );
}

// Validate changeset status param.
$is_publish = null;
$changeset_status = null;
if ( isset( $_POST['customize_changeset_status'] ) ) {
$changeset_status = wp_unslash( $_POST['customize_changeset_status'] );
if ( ! get_post_status_object( $changeset_status ) || ! in_array( $changeset_status, array( 'draft', 'pending', 'publish', 'future' ), true ) ) {
wp_send_json_error( 'bad_customize_changeset_status', 400 );
}
$is_publish = ( 'publish' === $changeset_status || 'future' === $changeset_status );
if ( $is_publish && ! current_user_can( get_post_type_object( 'customize_changeset' )->cap->publish_posts ) ) {
wp_send_json_error( 'changeset_publish_unauthorized', 403 );
}
}

/*
* Validate changeset date param. Date is assumed to be in local time for
* the WP if in MySQL format (YYYY-MM-DD HH:MM:SS). Otherwise, the date
* is parsed with strtotime() so that ISO date format may be supplied
* or a string like "+10 minutes".
*/
$changeset_date_gmt = null;
if ( isset( $_POST['customize_changeset_date'] ) ) {
$changeset_date = wp_unslash( $_POST['customize_changeset_date'] );
if ( preg_match( '/^\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d$/', $changeset_date ) ) {
$mm = substr( $changeset_date, 5, 2 );
$jj = substr( $changeset_date, 8, 2 );
$aa = substr( $changeset_date, 0, 4 );
$valid_date = wp_checkdate( $mm, $jj, $aa, $changeset_date );
if ( ! $valid_date ) {
wp_send_json_error( 'bad_customize_changeset_date', 400 );
}
$changeset_date_gmt = get_gmt_from_date( $changeset_date );
} else {
$timestamp = strtotime( $changeset_date );
if ( ! $timestamp ) {
wp_send_json_error( 'bad_customize_changeset_date', 400 );
}
$changeset_date_gmt = gmdate( 'Y-m-d H:i:s', $timestamp );
}
}

$lock_user_id = null;
$autosave = ! empty( $_POST['customize_changeset_autosave'] );
if ( ! $is_new_changeset ) {
$lock_user_id = wp_check_post_lock( $this->changeset_post_id() );
}

// Force request to autosave when changeset is locked.
if ( $lock_user_id && ! $autosave ) {
$autosave = true;
$changeset_status = null;
$changeset_date_gmt = null;
}

if ( $autosave && ! defined( 'DOING_AUTOSAVE' ) ) { // Back-compat.
define( 'DOING_AUTOSAVE', true );
}

$autosaved = false;
$r = $this->save_changeset_post(
array(
'status' => $changeset_status,
'title' => $changeset_title,
'date_gmt' => $changeset_date_gmt,
'data' => $input_changeset_data,
'autosave' => $autosave,
)
);
if ( $autosave && ! is_wp_error( $r ) ) {
$autosaved = true;
}

// If the changeset was locked and an autosave request wasn't itself an error, then now explicitly return with a failure.
if ( $lock_user_id && ! is_wp_error( $r ) ) {
$r = new WP_Error(
'changeset_locked',
__( 'Changeset is being edited by other user.' ),
array(
'lock_user' => $this->get_lock_user_data( $lock_user_id ),
)
);
}

if ( is_wp_error( $r ) ) {
$response = array(
'message' => $r->get_error_message(),
'code' => $r->get_error_code(),
);
if ( is_array( $r->get_error_data() ) ) {
$response = array_merge( $response, $r->get_error_data() );
} else {
$response['data'] = $r->get_error_data();
}
} else {
$response = $r;
$changeset_post = get_post( $this->changeset_post_id() );

// Dismiss all other auto-draft changeset posts for this user (they serve like autosave revisions), as there should only be one.
if ( $is_new_changeset ) {
$this->dismiss_user_auto_draft_changesets();
}

// Note that if the changeset status was publish, then it will get set to Trash if revisions are not supported.
$response['changeset_status'] = $changeset_post->post_status;
if ( $is_publish && 'trash' === $response['changeset_status'] ) {
$response['changeset_status'] = 'publish';
}

if ( 'publish' !== $response['changeset_status'] ) {
$this->set_changeset_lock( $changeset_post->ID );
}

if ( 'future' === $response['changeset_status'] ) {
$response['changeset_date'] = $changeset_post->post_date;
}

if ( 'publish' === $response['changeset_status'] || 'trash' === $response['changeset_status'] ) {
$response['next_changeset_uuid'] = wp_generate_uuid4();
}
}

if ( $autosave ) {
$response['autosaved'] = $autosaved;
}

if ( isset( $response['setting_validities'] ) ) {
$response['setting_validities'] = array_map( array( $this, 'prepare_setting_validity_for_js' ), $response['setting_validities'] );
}

/**
* Filters 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 $response Additional information passed back to the 'saved'
* event on `wp.customize`.
* @param WP_Customize_Manager $manager WP_Customize_Manager instance.
*/
$response = apply_filters( 'customize_save_response', $response, $this );

if ( is_wp_error( $r ) ) {
wp_send_json_error( $response );
} else {
wp_send_json_success( $response );
}
}

/**
* Saves the post for the loaded changeset.
*
* @since 4.7.0
*
* @param array $args {
* Args for changeset post.
*
* @type array $data Optional additional changeset data. Values will be merged on top of any existing post values.
* @type string $status Post status. Optional. If supplied, the save will be transactional and a post revision will be allowed.
* @type string $title Post title. Optional.
* @type string $date_gmt Date in GMT. Optional.
* @type int $user_id ID for user who is saving the changeset. Optional, defaults to the current user ID.
* @type bool $starter_content Whether the data is starter content. If false (default), then $starter_content will be cleared for any $data being saved.
* @type bool $autosave Whether this is a request to create an autosave revision.
* }
*
* @return array|WP_Error Returns array on success and WP_Error with array data on error.
*/
public function save_changeset_post( $args = array() ) {

$args = array_merge(
array(
'status' => null,
'title' => null,
'data' => array(),
'date_gmt' => null,
'user_id' => get_current_user_id(),
'starter_content' => false,
'autosave' => false,
),
$args
);

$changeset_post_id = $this->changeset_post_id();
$existing_changeset_data = array();
if ( $changeset_post_id ) {
$existing_status = get_post_status( $changeset_post_id );
if ( 'publish' === $existing_status || 'trash' === $existing_status ) {
return new WP_Error(
'changeset_already_published',
__( 'The previous set of changes has already been published. Please try saving your current set of changes again.' ),
array(
'next_changeset_uuid' => wp_generate_uuid4(),
)
);
}

$existing_changeset_data = $this->get_changeset_post_data( $changeset_post_id );
if ( is_wp_error( $existing_changeset_data ) ) {
return $existing_changeset_data;
}
}

// Fail if attempting to publish but publish hook is missing.
if ( 'publish' === $args['status'] && false === has_action( 'transition_post_status', '_wp_customize_publish_changeset' ) ) {
return new WP_Error( 'missing_publish_callback' );
}

// Validate date.
$now = gmdate( 'Y-m-d H:i:59' );
if ( $args['date_gmt'] ) {
$is_future_dated = ( mysql2date( 'U', $args['date_gmt'], false ) > mysql2date( 'U', $now, false ) );
if ( ! $is_future_dated ) {
return new WP_Error( 'not_future_date', __( 'You must supply a future date to schedule.' ) ); // Only future dates are allowed.
}

if ( ! $this->is_theme_active() && ( 'future' === $args['status'] || $is_future_dated ) ) {
return new WP_Error( 'cannot_schedule_theme_switches' ); // This should be allowed in the future, when theme is a regular setting.
}
$will_remain_auto_draft = ( ! $args['status'] && ( ! $changeset_post_id || 'auto-draft' === get_post_status( $changeset_post_id ) ) );
if ( $will_remain_auto_draft ) {
return new WP_Error( 'cannot_supply_date_for_auto_draft_changeset' );
}
} elseif ( $changeset_post_id && 'future' === $args['status'] ) {

// Fail if the new status is future but the existing post's date is not in the future.
$changeset_post = get_post( $changeset_post_id );
if ( mysql2date( 'U', $changeset_post->post_date_gmt, false ) <= mysql2date( 'U', $now, false ) ) {
return new WP_Error( 'not_future_date', __( 'You must supply a future date to schedule.' ) );
}
}

if ( ! empty( $is_future_dated ) && 'publish' === $args['status'] ) {
$args['status'] = 'future';
}

// Validate autosave param. See _wp_post_revision_fields() for why these fields are disallowed.
if ( $args['autosave'] ) {
if ( $args['date_gmt'] ) {
return new WP_Error( 'illegal_autosave_with_date_gmt' );
} elseif ( $args['status'] ) {
return new WP_Error( 'illegal_autosave_with_status' );
} elseif ( $args['user_id'] && get_current_user_id() !== $args['user_id'] ) {
return new WP_Error( 'illegal_autosave_with_non_current_user' );
}
}

// The request was made via wp.customize.previewer.save().
$update_transactionally = (bool) $args['status'];
$allow_revision = (bool) $args['status'];

// Amend post values with any supplied data.
foreach ( $args['data'] as $setting_id => $setting_params ) {
if ( is_array( $setting_params ) && array_key_exists( 'value', $setting_params ) ) {
$this->set_post_value( $setting_id, $setting_params['value'] ); // Add to post values so that they can be validated and sanitized.
}
}

// Note that in addition to post data, this will include any stashed theme mods.
$post_values = $this->unsanitized_post_values(
array(
'exclude_changeset' => true,
'exclude_post_data' => false,
)
);
$this->add_dynamic_settings( array_keys( $post_values ) ); // Ensure settings get created even if they lack an input value.

/*
* Get list of IDs for settings that have values different from what is currently
* saved in the changeset. By skipping any values that are already the same, the
* subset of changed settings can be passed into validate_setting_values to prevent
* an underprivileged modifying a single setting for which they have the capability
* from being blocked from saving. This also prevents a user from touching of the
* previous saved settings and overriding the associated user_id if they made no change.
*/
$changed_setting_ids = array();
foreach ( $post_values as $setting_id => $setting_value ) {
$setting = $this->get_setting( $setting_id );

if ( $setting && 'theme_mod' === $setting->type ) {
$prefixed_setting_id = $this->get_stylesheet() . '::' . $setting->id;
} else {
$prefixed_setting_id = $setting_id;
}

$is_value_changed = (
! isset( $existing_changeset_data[ $prefixed_setting_id ] )
||
! array_key_exists( 'value', $existing_changeset_data[ $prefixed_setting_id ] )
||
$existing_changeset_data[ $prefixed_setting_id ]['value'] !== $setting_value
);
if ( $is_value_changed ) {
$changed_setting_ids[] = $setting_id;
}
}

/**
* Fires before save validation happens.
*
* Plugins can add just-in-time {@see 'customize_validate_{$this->ID}'} filters
* at this point to catch any settings registered after `customize_register`.
* The dynamic portion of the hook name, `$this->ID` refers to the setting ID.
*
* @since 4.6.0
*
* @param WP_Customize_Manager $manager WP_Customize_Manager instance.
*/
do_action( 'customize_save_validation_before', $this );

// Validate settings.
$validated_values = array_merge(
array_fill_keys( array_keys( $args['data'] ), null ), // Make sure existence/capability checks are done on value-less setting updates.
$post_values
);
$setting_validities = $this->validate_setting_values(
$validated_values,
array(
'validate_capability' => true,
'validate_existence' => true,
)
);
$invalid_setting_count = count( array_filter( $setting_validities, 'is_wp_error' ) );

/*
* Short-circuit if there are invalid settings the update is transactional.
* A changeset update is transactional when a status is supplied in the request.
*/
if ( $update_transactionally && $invalid_setting_count > 0 ) {
$response = array(
'setting_validities' => $setting_validities,
/* translators: %s: Number of invalid settings. */
'message' => sprintf( _n( 'Unable to save due to %s invalid setting.', 'Unable to save due to %s invalid settings.', $invalid_setting_count ), number_format_i18n( $invalid_setting_count ) ),
);
return new WP_Error( 'transaction_fail', '', $response );
}

// Obtain/merge data for changeset.
$original_changeset_data = $this->get_changeset_post_data( $changeset_post_id );
$data = $original_changeset_data;
if ( is_wp_error( $data ) ) {
$data = array();
}

// Ensure that all post values are included in the changeset data.
foreach ( $post_values as $setting_id => $post_value ) {
if ( ! isset( $args['data'][ $setting_id ] ) ) {
$args['data'][ $setting_id ] = array();
}
if ( ! isset( $args['data'][ $setting_id ]['value'] ) ) {
$args['data'][ $setting_id ]['value'] = $post_value;
}
}

foreach ( $args['data'] as $setting_id => $setting_params ) {
$setting = $this->get_setting( $setting_id );
if ( ! $setting || ! $setting->check_capabilities() ) {
continue;
}

// Skip updating changeset for invalid setting values.
if ( isset( $setting_validities[ $setting_id ] ) && is_wp_error( $setting_validities[ $setting_id ] ) ) {
continue;
}

$changeset_setting_id = $setting_id;
if ( 'theme_mod' === $setting->type ) {
$changeset_setting_id = sprintf( '%s::%s', $this->get_stylesheet(), $setting_id );
}

if ( null === $setting_params ) {
// Remove setting from changeset entirely.
unset( $data[ $changeset_setting_id ] );
} else {

if ( ! isset( $data[ $changeset_setting_id ] ) ) {
$data[ $changeset_setting_id ] = array();
}

// Merge any additional setting params that have been supplied with the existing params.
$merged_setting_params = array_merge( $data[ $changeset_setting_id ], $setting_params );

// Skip updating setting params if unchanged (ensuring the user_id is not overwritten).
if ( $data[ $changeset_setting_id ] === $merged_setting_params ) {
continue;
}

$data[ $changeset_setting_id ] = array_merge(
$merged_setting_params,
array(
'type' => $setting->type,
'user_id' => $args['user_id'],
'date_modified_gmt' => current_time( 'mysql', true ),
)
);

// Clear starter_content flag in data if changeset is not explicitly being updated for starter content.
if ( empty( $args['starter_content'] ) ) {
unset( $data[ $changeset_setting_id ]['starter_content'] );
}
}
}

$filter_context = array(
'uuid' => $this->changeset_uuid(),
'title' => $args['title'],
'status' => $args['status'],
'date_gmt' => $args['date_gmt'],
'post_id' => $changeset_post_id,
'previous_data' => is_wp_error( $original_changeset_data ) ? array() : $original_changeset_data,
'manager' => $this,
);

/**
* Filters the settings' data that will be persisted into the changeset.
*
* Plugins may amend additional data (such as additional meta for settings) into the changeset with this filter.
*
* @since 4.7.0
*
* @param array $data Updated changeset data, mapping setting IDs to arrays containing a $value item and optionally other metadata.
* @param array $context {
* Filter context.
*
* @type string $uuid Changeset UUID.
* @type string $title Requested title for the changeset post.
* @type string $status Requested status for the changeset post.
* @type string $date_gmt Requested date for the changeset post in MySQL format and GMT timezone.
* @type int|false $post_id Post ID for the changeset, or false if it doesn't exist yet.
* @type array $previous_data Previous data contained in the changeset.
* @type WP_Customize_Manager $manager Manager instance.
* }
*/
$data = apply_filters( 'customize_changeset_save_data', $data, $filter_context );

// Switch theme if publishing changes now.
if ( 'publish' === $args['status'] && ! $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();
}

// Gather the data for wp_insert_post()/wp_update_post().
$post_array = array(
// JSON_UNESCAPED_SLASHES is only to improve readability as slashes needn't be escaped in storage.
'post_content' => wp_json_encode( $data, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT ),
);
if ( $args['title'] ) {
$post_array['post_title'] = $args['title'];
}
if ( $changeset_post_id ) {
$post_array['ID'] = $changeset_post_id;
} else {
$post_array['post_type'] = 'customize_changeset';
$post_array['post_name'] = $this->changeset_uuid();
$post_array['post_status'] = 'auto-draft';
}
if ( $args['status'] ) {
$post_array['post_status'] = $args['status'];
}

// Reset post date to now if we are publishing, otherwise pass post_date_gmt and translate for post_date.
if ( 'publish' === $args['status'] ) {
$post_array['post_date_gmt'] = '0000-00-00 00:00:00';
$post_array['post_date'] = '0000-00-00 00:00:00';
} elseif ( $args['date_gmt'] ) {
$post_array['post_date_gmt'] = $args['date_gmt'];
$post_array['post_date'] = get_date_from_gmt( $args['date_gmt'] );
} elseif ( $changeset_post_id && 'auto-draft' === get_post_status( $changeset_post_id ) ) {
/*
* Keep bumping the date for the auto-draft whenever it is modified;
* this extends its life, preserving it from garbage-collection via
* wp_delete_auto_drafts().
*/
$post_array['post_date'] = current_time( 'mysql' );
$post_array['post_date_gmt'] = '';
}

$this->store_changeset_revision = $allow_revision;
add_filter( 'wp_save_post_revision_post_has_changed', array( $this, '_filter_revision_post_has_changed' ), 5, 3 );

/*
* Update the changeset post. The publish_customize_changeset action will cause the settings in the
* changeset to be saved via WP_Customize_Setting::save(). Updating a post with publish status will
* trigger WP_Customize_Manager::publish_changeset_values().
*/
add_filter( 'wp_insert_post_data', array( $this, 'preserve_insert_changeset_post_content' ), 5, 3 );
if ( $changeset_post_id ) {
if ( $args['autosave'] && 'auto-draft' !== get_post_status( $changeset_post_id ) ) {
// See _wp_translate_postdata() for why this is required as it will use the edit_post meta capability.
add_filter( 'map_meta_cap', array( $this, 'grant_edit_post_capability_for_changeset' ), 10, 4 );

$post_array['post_ID'] = $post_array['ID'];
$post_array['post_type'] = 'customize_changeset';

$r = wp_create_post_autosave( wp_slash( $post_array ) );

remove_filter( 'map_meta_cap', array( $this, 'grant_edit_post_capability_for_changeset' ), 10 );
} else {
$post_array['edit_date'] = true; // Prevent date clearing.

$r = wp_update_post( wp_slash( $post_array ), true );

// Delete autosave revision for user when the changeset is updated.
if ( ! empty( $args['user_id'] ) ) {
$autosave_draft = wp_get_post_autosave( $changeset_post_id, $args['user_id'] );
if ( $autosave_draft ) {
wp_delete_post( $autosave_draft->ID, true );
}
}
}
} else {
$r = wp_insert_post( wp_slash( $post_array ), true );
if ( ! is_wp_error( $r ) ) {
$this->_changeset_post_id = $r; // Update cached post ID for the loaded changeset.
}
}
remove_filter( 'wp_insert_post_data', array( $this, 'preserve_insert_changeset_post_content' ), 5 );

$this->_changeset_data = null; // Reset so WP_Customize_Manager::changeset_data() will re-populate with updated contents.

remove_filter( 'wp_save_post_revision_post_has_changed', array( $this, '_filter_revision_post_has_changed' ) );

$response = array(
'setting_validities' => $setting_validities,
);

if ( is_wp_error( $r ) ) {
$response['changeset_post_save_failure'] = $r->get_error_code();
return new WP_Error( 'changeset_post_save_failure', '', $response );
}

return $response;
}

/**
* Preserves the initial JSON post_content passed to save into the post.
*
* This is needed to prevent KSES and other {@see 'content_save_pre'} filters
* from corrupting JSON data.
*
* Note that WP_Customize_Manager::validate_setting_values() have already
* run on the setting values being serialized as JSON into the post content
* so it is pre-sanitized.
*
* Also, the sanitization logic is re-run through the respective
* WP_Customize_Setting::sanitize() method when being read out of the
* changeset, via WP_Customize_Manager::post_value(), and this sanitized
* value will also be sent into WP_Customize_Setting::update() for
* persisting to the DB.
*
* Multiple users can collaborate on a single changeset, where one user may
* have the unfiltered_html capability but another may not. A user with
* unfiltered_html may add a script tag to some field which needs to be kept
* intact even when another user updates the changeset to modify another field
* when they do not have unfiltered_html.
*
* @since 5.4.1
*
* @param array $data An array of slashed and processed post data.
* @param array $postarr An array of sanitized (and slashed) but otherwise unmodified post data.
* @param array $unsanitized_postarr An array of slashed yet *unsanitized* and unprocessed post data as originally passed to wp_insert_post().
* @return array Filtered post data.
*/
public function preserve_insert_changeset_post_content( $data, $postarr, $unsanitized_postarr ) {
if (
isset( $data['post_type'] ) &&
isset( $unsanitized_postarr['post_content'] ) &&
'customize_changeset' === $data['post_type'] ||
(
'revision' === $data['post_type'] &&
! empty( $data['post_parent'] ) &&
'customize_changeset' === get_post_type( $data['post_parent'] )
)
) {
$data['post_content'] = $unsanitized_postarr['post_content'];
}
return $data;
}

/**
* Trashes or deletes a changeset post.
*
* The following re-formulates the logic from `wp_trash_post()` as done in
* `wp_publish_post()`. The reason for bypassing `wp_trash_post()` is that it
* will mutate the the `post_content` and the `post_name` when they should be
* untouched.
*
* @since 4.9.0
*
* @see wp_trash_post()
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int|WP_Post $post The changeset post.
* @return mixed A WP_Post object for the trashed post or an empty value on failure.
*/
public function trash_changeset_post( $post ) {
global $wpdb;

$post = get_post( $post );

if ( ! ( $post instanceof WP_Post ) ) {
return $post;
}
$post_id = $post->ID;

if ( ! EMPTY_TRASH_DAYS ) {
return wp_delete_post( $post_id, true );
}

if ( 'trash' === get_post_status( $post ) ) {
return false;
}

$previous_status = $post->post_status;

/** This filter is documented in wp-includes/post.php */
$check = apply_filters( 'pre_trash_post', null, $post, $previous_status );
if ( null !== $check ) {
return $check;
}

/** This action is documented in wp-includes/post.php */
do_action( 'wp_trash_post', $post_id, $previous_status );

add_post_meta( $post_id, '_wp_trash_meta_status', $previous_status );
add_post_meta( $post_id, '_wp_trash_meta_time', time() );

$new_status = 'trash';
$wpdb->update( $wpdb->posts, array( 'post_status' => $new_status ), array( 'ID' => $post->ID ) );
clean_post_cache( $post->ID );

$post->post_status = $new_status;
wp_transition_post_status( $new_status, $previous_status, $post );

/** This action is documented in wp-includes/post.php */
do_action( "edit_post_{$post->post_type}", $post->ID, $post );

/** This action is documented in wp-includes/post.php */
do_action( 'edit_post', $post->ID, $post );

/** This action is documented in wp-includes/post.php */
do_action( "save_post_{$post->post_type}", $post->ID, $post, true );

/** This action is documented in wp-includes/post.php */
do_action( 'save_post', $post->ID, $post, true );

/** This action is documented in wp-includes/post.php */
do_action( 'wp_insert_post', $post->ID, $post, true );

wp_after_insert_post( get_post( $post_id ), true, $post );

wp_trash_post_comments( $post_id );

/** This action is documented in wp-includes/post.php */
do_action( 'trashed_post', $post_id, $previous_status );

return $post;
}

/**
* Handles request to trash a changeset.
*
* @since 4.9.0
*/
public function handle_changeset_trash_request() {
if ( ! is_user_logged_in() ) {
wp_send_json_error( 'unauthenticated' );
}

if ( ! $this->is_preview() ) {
wp_send_json_error( 'not_preview' );
}

if ( ! check_ajax_referer( 'trash_customize_changeset', 'nonce', false ) ) {
wp_send_json_error(
array(
'code' => 'invalid_nonce',
'message' => __( 'There was an authentication problem. Please reload and try again.' ),
)
);
}

$changeset_post_id = $this->changeset_post_id();

if ( ! $changeset_post_id ) {
wp_send_json_error(
array(
'message' => __( 'No changes saved yet, so there is nothing to trash.' ),
'code' => 'non_existent_changeset',
)
);
return;
}

if ( $changeset_post_id ) {
if ( ! current_user_can( get_post_type_object( 'customize_changeset' )->cap->delete_post, $changeset_post_id ) ) {
wp_send_json_error(
array(
'code' => 'changeset_trash_unauthorized',
'message' => __( 'Unable to trash changes.' ),
)
);
}

$lock_user = (int) wp_check_post_lock( $changeset_post_id );

if ( $lock_user && get_current_user_id() !== $lock_user ) {
wp_send_json_error(
array(
'code' => 'changeset_locked',
'message' => __( 'Changeset is being edited by other user.' ),
'lockUser' => $this->get_lock_user_data( $lock_user ),
)
);
}
}

if ( 'trash' === get_post_status( $changeset_post_id ) ) {
wp_send_json_error(
array(
'message' => __( 'Changes have already been trashed.' ),
'code' => 'changeset_already_trashed',
)
);
return;
}

$r = $this->trash_changeset_post( $changeset_post_id );
if ( ! ( $r instanceof WP_Post ) ) {
wp_send_json_error(
array(
'code' => 'changeset_trash_failure',
'message' => __( 'Unable to trash changes.' ),
)
);
}

wp_send_json_success(
array(
'message' => __( 'Changes trashed successfully.' ),
)
);
}

/**
* Re-maps 'edit_post' meta cap for a customize_changeset post to be the same as 'customize' maps.
*
* There is essentially a "meta meta" cap in play here, where 'edit_post' meta cap maps to
* the 'customize' meta cap which then maps to 'edit_theme_options'. This is currently
* required in core for `wp_create_post_autosave()` because it will call
* `_wp_translate_postdata()` which in turn will check if a user can 'edit_post', but the
* the caps for the customize_changeset post type are all mapping to the meta capability.
* This should be able to be removed once #40922 is addressed in core.
*
* @since 4.9.0
*
* @link https://core.trac.wordpress.org/ticket/40922
* @see WP_Customize_Manager::save_changeset_post()
* @see _wp_translate_postdata()
*
* @param string[] $caps Array of the user's capabilities.
* @param string $cap Capability name.
* @param int $user_id The user ID.
* @param array $args Adds the context to the cap. Typically the object ID.
* @return array Capabilities.
*/
public function grant_edit_post_capability_for_changeset( $caps, $cap, $user_id, $args ) {
if ( 'edit_post' === $cap && ! empty( $args[0] ) && 'customize_changeset' === get_post_type( $args[0] ) ) {
$post_type_obj = get_post_type_object( 'customize_changeset' );
$caps = map_meta_cap( $post_type_obj->cap->$cap, $user_id );
}
return $caps;
}

/**
* Marks the changeset post as being currently edited by the current user.
*
* @since 4.9.0
*
* @param int $changeset_post_id Changeset post ID.
* @param bool $take_over Whether to take over the changeset. Default false.
*/
public function set_changeset_lock( $changeset_post_id, $take_over = false ) {
if ( $changeset_post_id ) {
$can_override = ! (bool) get_post_meta( $changeset_post_id, '_edit_lock', true );

if ( $take_over ) {
$can_override = true;
}

if ( $can_override ) {
$lock = sprintf( '%s:%s', time(), get_current_user_id() );
update_post_meta( $changeset_post_id, '_edit_lock', $lock );
} else {
$this->refresh_changeset_lock( $changeset_post_id );
}
}
}

/**
* Refreshes changeset lock with the current time if current user edited the changeset before.
*
* @since 4.9.0
*
* @param int $changeset_post_id Changeset post ID.
*/
public function refresh_changeset_lock( $changeset_post_id ) {
if ( ! $changeset_post_id ) {
return;
}

$lock = get_post_meta( $changeset_post_id, '_edit_lock', true );
$lock = explode( ':', $lock );

if ( $lock && ! empty( $lock[1] ) ) {
$user_id = (int) $lock[1];
$current_user_id = get_current_user_id();
if ( $user_id === $current_user_id ) {
$lock = sprintf( '%s:%s', time(), $user_id );
update_post_meta( $changeset_post_id, '_edit_lock', $lock );
}
}
}

/**
* Filters heartbeat settings for the Customizer.
*
* @since 4.9.0
*
* @global string $pagenow The filename of the current screen.
*
* @param array $settings Current settings to filter.
* @return array Heartbeat settings.
*/
public function add_customize_screen_to_heartbeat_settings( $settings ) {
global $pagenow;

if ( 'customize.php' === $pagenow ) {
$settings['screenId'] = 'customize';
}

return $settings;
}

/**
* Gets lock user data.
*
* @since 4.9.0
*
* @param int $user_id User ID.
* @return array|null User data formatted for client.
*/
protected function get_lock_user_data( $user_id ) {
if ( ! $user_id ) {
return null;
}

$lock_user = get_userdata( $user_id );

if ( ! $lock_user ) {
return null;
}

$user_details = array(
'id' => $lock_user->ID,
'name' => $lock_user->display_name,
);

if ( get_option( 'show_avatars' ) ) {
$user_details['avatar'] = get_avatar_url( $lock_user->ID, array( 'size' => 128 ) );
}

return $user_details;
}

/**
* Checks locked changeset with heartbeat API.
*
* @since 4.9.0
*
* @param array $response The Heartbeat response.
* @param array $data The $_POST data sent.
* @param string $screen_id The screen id.
* @return array The Heartbeat response.
*/
public function check_changeset_lock_with_heartbeat( $response, $data, $screen_id ) {
if ( isset( $data['changeset_uuid'] ) ) {
$changeset_post_id = $this->find_changeset_post_id( $data['changeset_uuid'] );
} else {
$changeset_post_id = $this->changeset_post_id();
}

if (
array_key_exists( 'check_changeset_lock', $data )
&& 'customize' === $screen_id
&& $changeset_post_id
&& current_user_can( get_post_type_object( 'customize_changeset' )->cap->edit_post, $changeset_post_id )
) {
$lock_user_id = wp_check_post_lock( $changeset_post_id );

if ( $lock_user_id ) {
$response['customize_changeset_lock_user'] = $this->get_lock_user_data( $lock_user_id );
} else {

// Refreshing time will ensure that the user is sitting on customizer and has not closed the customizer tab.
$this->refresh_changeset_lock( $changeset_post_id );
}
}

return $response;
}

/**
* Removes changeset lock when take over request is sent via Ajax.
*
* @since 4.9.0
*/
public function handle_override_changeset_lock_request() {
if ( ! $this->is_preview() ) {
wp_send_json_error( 'not_preview', 400 );
}

if ( ! check_ajax_referer( 'customize_override_changeset_lock', 'nonce', false ) ) {
wp_send_json_error(
array(
'code' => 'invalid_nonce',
'message' => __( 'Security check failed.' ),
)
);
}

$changeset_post_id = $this->changeset_post_id();

if ( empty( $changeset_post_id ) ) {
wp_send_json_error(
array(
'code' => 'no_changeset_found_to_take_over',
'message' => __( 'No changeset found to take over' ),
)
);
}

if ( ! current_user_can( get_post_type_object( 'customize_changeset' )->cap->edit_post, $changeset_post_id ) ) {
wp_send_json_error(
array(
'code' => 'cannot_remove_changeset_lock',
'message' => __( 'Sorry, you are not allowed to take over.' ),
)
);
}

$this->set_changeset_lock( $changeset_post_id, true );

wp_send_json_success( 'changeset_taken_over' );
}

/**
* Determines whether a changeset revision should be made.
*
* @since 4.7.0
* @var bool
*/
protected $store_changeset_revision;

/**
* Filters whether a changeset has changed to create a new revision.
*
* Note that this will not be called while a changeset post remains in auto-draft status.
*
* @since 4.7.0
*
* @param bool $post_has_changed Whether the post has changed.
* @param WP_Post $latest_revision The latest revision post object.
* @param WP_Post $post The post object.
* @return bool Whether a revision should be made.
*/
public function _filter_revision_post_has_changed( $post_has_changed, $latest_revision, $post ) {
unset( $latest_revision );
if ( 'customize_changeset' === $post->post_type ) {
$post_has_changed = $this->store_changeset_revision;
}
return $post_has_changed;
}

/**
* Publishes the values of a changeset.
*
* This will publish the values contained in a changeset, even changesets that do not
* correspond to current manager instance. This is called by
* `_wp_customize_publish_changeset()` when a customize_changeset post is
* transitioned to the `publish` status. As such, this method should not be
* called directly and instead `wp_publish_post()` should be used.
*
* Please note that if the settings in the changeset are for a non-activated
* theme, the theme must first be switched to (via `switch_theme()`) before
* invoking this method.
*
* @since 4.7.0
*
* @see _wp_customize_publish_changeset()
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $changeset_post_id ID for customize_changeset post. Defaults to the changeset for the current manager instance.
* @return true|WP_Error True or error info.
*/
public function _publish_changeset_values( $changeset_post_id ) {
global $wpdb;

$publishing_changeset_data = $this->get_changeset_post_data( $changeset_post_id );
if ( is_wp_error( $publishing_changeset_data ) ) {
return $publishing_changeset_data;
}

$changeset_post = get_post( $changeset_post_id );

/*
* Temporarily override the changeset context so that it will be read
* in calls to unsanitized_post_values() and so that it will be available
* on the $wp_customize object passed to hooks during the save logic.
*/
$previous_changeset_post_id = $this->_changeset_post_id;
$this->_changeset_post_id = $changeset_post_id;
$previous_changeset_uuid = $this->_changeset_uuid;
$this->_changeset_uuid = $changeset_post->post_name;
$previous_changeset_data = $this->_changeset_data;
$this->_changeset_data = $publishing_changeset_data;

// Parse changeset data to identify theme mod settings and user IDs associated with settings to be saved.
$setting_user_ids = array();
$theme_mod_settings = array();
$namespace_pattern = '/^(?P<stylesheet>.+?)::(?P<setting_id>.+)$/';
$matches = array();
foreach ( $this->_changeset_data as $raw_setting_id => $setting_params ) {
$actual_setting_id = null;
$is_theme_mod_setting = (
isset( $setting_params['value'] )
&&
isset( $setting_params['type'] )
&&
'theme_mod' === $setting_params['type']
&&
preg_match( $namespace_pattern, $raw_setting_id, $matches )
);
if ( $is_theme_mod_setting ) {
if ( ! isset( $theme_mod_settings[ $matches['stylesheet'] ] ) ) {
$theme_mod_settings[ $matches['stylesheet'] ] = array();
}
$theme_mod_settings[ $matches['stylesheet'] ][ $matches['setting_id'] ] = $setting_params;

if ( $this->get_stylesheet() === $matches['stylesheet'] ) {
$actual_setting_id = $matches['setting_id'];
}
} else {
$actual_setting_id = $raw_setting_id;
}

// Keep track of the user IDs for settings actually for this theme.
if ( $actual_setting_id && isset( $setting_params['user_id'] ) ) {
$setting_user_ids[ $actual_setting_id ] = $setting_params['user_id'];
}
}

$changeset_setting_values = $this->unsanitized_post_values(
array(
'exclude_post_data' => true,
'exclude_changeset' => false,
)
);
$changeset_setting_ids = array_keys( $changeset_setting_values );
$this->add_dynamic_settings( $changeset_setting_ids );

/**
* Fires once the theme has switched in the Customizer, but before settings
* have been saved.
*
* @since 3.4.0
*
* @param WP_Customize_Manager $manager WP_Customize_Manager instance.
*/
do_action( 'customize_save', $this );

/*
* Ensure that all settings will allow themselves to be saved. Note that
* this is safe because the setting would have checked the capability
* when the setting value was written into the changeset. So this is why
* an additional capability check is not required here.
*/
$original_setting_capabilities = array();
foreach ( $changeset_setting_ids as $setting_id ) {
$setting = $this->get_setting( $setting_id );
if ( $setting && ! isset( $setting_user_ids[ $setting_id ] ) ) {
$original_setting_capabilities[ $setting->id ] = $setting->capability;
$setting->capability = 'exist';
}
}

$original_user_id = get_current_user_id();
foreach ( $changeset_setting_ids as $setting_id ) {
$setting = $this->get_setting( $setting_id );
if ( $setting ) {
/*
* Set the current user to match the user who saved the value into
* the changeset so that any filters that apply during the save
* process will respect the original user's capabilities. This
* will ensure, for example, that KSES won't strip unsafe HTML
* when a scheduled changeset publishes via WP Cron.
*/
if ( isset( $setting_user_ids[ $setting_id ] ) ) {
wp_set_current_user( $setting_user_ids[ $setting_id ] );
} else {
wp_set_current_user( $original_user_id );
}

$setting->save();
}
}
wp_set_current_user( $original_user_id );

// Update the stashed theme mod settings, removing the active theme's stashed settings, if activated.
if ( did_action( 'switch_theme' ) ) {
$other_theme_mod_settings = $theme_mod_settings;
unset( $other_theme_mod_settings[ $this->get_stylesheet() ] );
$this->update_stashed_theme_mod_settings( $other_theme_mod_settings );
}

/**
* Fires after Customize settings have been saved.
*
* @since 3.6.0
*
* @param WP_Customize_Manager $manager WP_Customize_Manager instance.
*/
do_action( 'customize_save_after', $this );

// Restore original capabilities.
foreach ( $original_setting_capabilities as $setting_id => $capability ) {
$setting = $this->get_setting( $setting_id );
if ( $setting ) {
$setting->capability = $capability;
}
}

// Restore original changeset data.
$this->_changeset_data = $previous_changeset_data;
$this->_changeset_post_id = $previous_changeset_post_id;
$this->_changeset_uuid = $previous_changeset_uuid;

/*
* Convert all autosave revisions into their own auto-drafts so that users can be prompted to
* restore them when a changeset is published, but they had been locked out from including
* their changes in the changeset.
*/
$revisions = wp_get_post_revisions( $changeset_post_id, array( 'check_enabled' => false ) );
foreach ( $revisions as $revision ) {
if ( str_contains( $revision->post_name, "{$changeset_post_id}-autosave" ) ) {
$wpdb->update(
$wpdb->posts,
array(
'post_status' => 'auto-draft',
'post_type' => 'customize_changeset',
'post_name' => wp_generate_uuid4(),
'post_parent' => 0,
),
array(
'ID' => $revision->ID,
)
);
clean_post_cache( $revision->ID );
}
}

return true;
}

/**
* Updates stashed theme mod settings.
*
* @since 4.7.0
*
* @param array $inactive_theme_mod_settings Mapping of stylesheet to arrays of theme mod settings.
* @return array|false Returns array of updated stashed theme mods or false if the update failed or there were no changes.
*/
protected function update_stashed_theme_mod_settings( $inactive_theme_mod_settings ) {
$stashed_theme_mod_settings = get_option( 'customize_stashed_theme_mods' );
if ( empty( $stashed_theme_mod_settings ) ) {
$stashed_theme_mod_settings = array();
}

// Delete any stashed theme mods for the active theme since they would have been loaded and saved upon activation.
unset( $stashed_theme_mod_settings[ $this->get_stylesheet() ] );

// Merge inactive theme mods with the stashed theme mod settings.
foreach ( $inactive_theme_mod_settings as $stylesheet => $theme_mod_settings ) {
if ( ! isset( $stashed_theme_mod_settings[ $stylesheet ] ) ) {
$stashed_theme_mod_settings[ $stylesheet ] = array();
}

$stashed_theme_mod_settings[ $stylesheet ] = array_merge(
$stashed_theme_mod_settings[ $stylesheet ],
$theme_mod_settings
);
}

$autoload = false;
$result = update_option( 'customize_stashed_theme_mods', $stashed_theme_mod_settings, $autoload );
if ( ! $result ) {
return false;
}
return $stashed_theme_mod_settings;
}

/**
* Refreshes nonces for the current preview.
*
* @since 4.2.0
*/
public function refresh_nonces() {
if ( ! $this->is_preview() ) {
wp_send_json_error( 'not_preview' );
}

wp_send_json_success( $this->get_nonces() );
}

/**
* Deletes a given auto-draft changeset or the autosave revision for a given changeset or delete changeset lock.
*
* @since 4.9.0
*/
public function handle_dismiss_autosave_or_lock_request() {
// Calls to dismiss_user_auto_draft_changesets() and wp_get_post_autosave() require non-zero get_current_user_id().
if ( ! is_user_logged_in() ) {
wp_send_json_error( 'unauthenticated', 401 );
}

if ( ! $this->is_preview() ) {
wp_send_json_error( 'not_preview', 400 );
}

if ( ! check_ajax_referer( 'customize_dismiss_autosave_or_lock', 'nonce', false ) ) {
wp_send_json_error( 'invalid_nonce', 403 );
}

$changeset_post_id = $this->changeset_post_id();
$dismiss_lock = ! empty( $_POST['dismiss_lock'] );
$dismiss_autosave = ! empty( $_POST['dismiss_autosave'] );

if ( $dismiss_lock ) {
if ( empty( $changeset_post_id ) && ! $dismiss_autosave ) {
wp_send_json_error( 'no_changeset_to_dismiss_lock', 404 );
}
if ( ! current_user_can( get_post_type_object( 'customize_changeset' )->cap->edit_post, $changeset_post_id ) && ! $dismiss_autosave ) {
wp_send_json_error( 'cannot_remove_changeset_lock', 403 );
}

delete_post_meta( $changeset_post_id, '_edit_lock' );

if ( ! $dismiss_autosave ) {
wp_send_json_success( 'changeset_lock_dismissed' );
}
}

if ( $dismiss_autosave ) {
if ( empty( $changeset_post_id ) || 'auto-draft' === get_post_status( $changeset_post_id ) ) {
$dismissed = $this->dismiss_user_auto_draft_changesets();
if ( $dismissed > 0 ) {
wp_send_json_success( 'auto_draft_dismissed' );
} else {
wp_send_json_error( 'no_auto_draft_to_delete', 404 );
}
} else {
$revision = wp_get_post_autosave( $changeset_post_id, get_current_user_id() );

if ( $revision ) {
if ( ! current_user_can( get_post_type_object( 'customize_changeset' )->cap->delete_post, $changeset_post_id ) ) {
wp_send_json_error( 'cannot_delete_autosave_revision', 403 );
}

if ( ! wp_delete_post( $revision->ID, true ) ) {
wp_send_json_error( 'autosave_revision_deletion_failure', 500 );
} else {
wp_send_json_success( 'autosave_revision_deleted' );
}
} else {
wp_send_json_error( 'no_autosave_revision_to_delete', 404 );
}
}
}

wp_send_json_error( 'unknown_error', 500 );
}

/**
* Adds a customize setting.
*
* @since 3.4.0
* @since 4.5.0 Return added WP_Customize_Setting instance.
*
* @see WP_Customize_Setting::__construct()
* @link https://developer.wordpress.org/themes/customize-api
*
* @param WP_Customize_Setting|string $id Customize Setting object, or ID.
* @param array $args Optional. Array of properties for the new Setting object.
* See WP_Customize_Setting::__construct() for information
* on accepted arguments. Default empty array.
* @return WP_Customize_Setting The instance of the setting that was added.
*/
public function add_setting( $id, $args = array() ) {
if ( $id instanceof WP_Customize_Setting ) {
$setting = $id;
} else {
$class = 'WP_Customize_Setting';

/** This filter is documented in wp-includes/class-wp-customize-manager.php */
$args = apply_filters( 'customize_dynamic_setting_args', $args, $id );

/** This filter is documented in wp-includes/class-wp-customize-manager.php */
$class = apply_filters( 'customize_dynamic_setting_class', $class, $id, $args );

$setting = new $class( $this, $id, $args );
}

$this->settings[ $setting->id ] = $setting;
return $setting;
}

/**
* Registers any dynamically-created settings, such as those from $_POST['customized']
* that have no corresponding setting created.
*
* This is a mechanism to "wake up" settings that have been dynamically created
* on the front end and have been sent to WordPress in `$_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';

/**
* Filters 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;
}

/**
* Retrieves 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 ];
}
}

/**
* Removes a customize setting.
*
* Note that removing the setting doesn't destroy the WP_Customize_Setting instance or remove its filters.
*
* @since 3.4.0
*
* @param string $id Customize Setting ID.
*/
public function remove_setting( $id ) {
unset( $this->settings[ $id ] );
}

/**
* Adds a customize panel.
*
* @since 4.0.0
* @since 4.5.0 Return added WP_Customize_Panel instance.
*
* @see WP_Customize_Panel::__construct()
*
* @param WP_Customize_Panel|string $id Customize Panel object, or ID.
* @param array $args Optional. Array of properties for the new Panel object.
* See WP_Customize_Panel::__construct() for information
* on accepted arguments. Default empty array.
* @return WP_Customize_Panel The instance of the panel that was added.
*/
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;
return $panel;
}

/**
* Retrieves a customize panel.
*
* @since 4.0.0
*
* @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 ];
}
}

/**
* Removes a customize panel.
*
* Note that removing the panel doesn't destroy the WP_Customize_Panel instance or remove its filters.
*
* @since 4.0.0
*
* @param string $id Panel ID to remove.
*/
public function remove_panel( $id ) {
// Removing core components this way is _doing_it_wrong().
if ( in_array( $id, $this->components, true ) ) {
_doing_it_wrong(
__METHOD__,
sprintf(
/* translators: 1: Panel ID, 2: Link to 'customize_loaded_components' filter reference. */
__( 'Removing %1$s manually will cause PHP warnings. Use the %2$s filter instead.' ),
$id,
sprintf(
'<a href="%1$s">%2$s</a>',
esc_url( 'https://developer.wordpress.org/reference/hooks/customize_loaded_components/' ),
'<code>customize_loaded_components</code>'
)
),
'4.5.0'
);
}
unset( $this->panels[ $id ] );
}

/**
* Registers a customize panel type.
*
* Registered types are eligible to be rendered via JS and created dynamically.
*
* @since 4.3.0
*
* @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;
}

/**
* Renders JS templates for all registered panel types.
*
* @since 4.3.0
*/
public function render_panel_templates() {
foreach ( $this->registered_panel_types as $panel_type ) {
$panel = new $panel_type( $this, 'temp', array() );
$panel->print_template();
}
}

/**
* Adds a customize section.
*
* @since 3.4.0
* @since 4.5.0 Return added WP_Customize_Section instance.
*
* @see WP_Customize_Section::__construct()
*
* @param WP_Customize_Section|string $id Customize Section object, or ID.
* @param array $args Optional. Array of properties for the new Section object.
* See WP_Customize_Section::__construct() for information
* on accepted arguments. Default empty array.
* @return WP_Customize_Section The instance of the section that was added.
*/
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;
return $section;
}

/**
* Retrieves 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 ];
}
}

/**
* Removes a customize section.
*
* Note that removing the section doesn't destroy the WP_Customize_Section instance or remove its filters.
*
* @since 3.4.0
*
* @param string $id Section ID.
*/
public function remove_section( $id ) {
unset( $this->sections[ $id ] );
}

/**
* Registers a customize section type.
*
* Registered types are eligible to be rendered via JS and created dynamically.
*
* @since 4.3.0
*
* @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;
}

/**
* Renders JS templates for all registered section types.
*
* @since 4.3.0
*/
public function render_section_templates() {
foreach ( $this->registered_section_types as $section_type ) {
$section = new $section_type( $this, 'temp', array() );
$section->print_template();
}
}

/**
* Adds a customize control.
*
* @since 3.4.0
* @since 4.5.0 Return added WP_Customize_Control instance.
*
* @see WP_Customize_Control::__construct()
*
* @param WP_Customize_Control|string $id Customize Control object, or ID.
* @param array $args Optional. Array of properties for the new Control object.
* See WP_Customize_Control::__construct() for information
* on accepted arguments. Default empty array.
* @return WP_Customize_Control The instance of the control that was added.
*/
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;
return $control;
}

/**
* Retrieves 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 ];
}
}

/**
* Removes a customize control.
*
* Note that removing the control doesn't destroy the WP_Customize_Control instance or remove its filters.
*
* @since 3.4.0
*
* @param string $id ID of the control.
*/
public function remove_control( $id ) {
unset( $this->controls[ $id ] );
}

/**
* Registers a customize control type.
*
* Registered types are eligible to be rendered via JS and created dynamically.
*
* @since 4.1.0
*
* @param string $control Name of a custom control which is a subclass of
* WP_Customize_Control.
*/
public function register_control_type( $control ) {
$this->registered_control_types[] = $control;
}

/**
* Renders JS templates for all registered control types.
*
* @since 4.1.0
*/
public function render_control_templates() {
if ( $this->branching() ) {
$l10n = array(
/* translators: %s: User who is customizing the changeset in customizer. */
'locked' => __( '%s is already customizing this changeset. Please wait until they are done to try customizing. Your latest changes have been autosaved.' ),
/* translators: %s: User who is customizing the changeset in customizer. */
'locked_allow_override' => __( '%s is already customizing this changeset. Do you want to take over?' ),
);
} else {
$l10n = array(
/* translators: %s: User who is customizing the changeset in customizer. */
'locked' => __( '%s is already customizing this site. Please wait until they are done to try customizing. Your latest changes have been autosaved.' ),
/* translators: %s: User who is customizing the changeset in customizer. */
'locked_allow_override' => __( '%s is already customizing this site. Do you want to take over?' ),
);
}

foreach ( $this->registered_control_types as $control_type ) {
$control = new $control_type(
$this,
'temp',
array(
'settings' => array(),
)
);
$control->print_template();
}
?>

<script type="text/html" id="tmpl-customize-control-default-content">
<#
var inputId = _.uniqueId( 'customize-control-default-input-' );
var descriptionId = _.uniqueId( 'customize-control-default-description-' );
var describedByAttr = data.description ? ' aria-describedby="' + descriptionId + '" ' : '';
#>
<# switch ( data.type ) {
case 'checkbox': #>
<span class="customize-inside-control-row">
<input
id="{{ inputId }}"
{{{ describedByAttr }}}
type="checkbox"
value="{{ data.value }}"
data-customize-setting-key-link="default"
>
<label for="{{ inputId }}">
{{ data.label }}
</label>
<# if ( data.description ) { #>
<span id="{{ descriptionId }}" class="description customize-control-description">{{{ data.description }}}</span>
<# } #>
</span>
<#
break;
case 'radio':
if ( ! data.choices ) {
return;
}
#>
<# if ( data.label ) { #>
<label for="{{ inputId }}" class="customize-control-title">
{{ data.label }}
</label>
<# } #>
<# if ( data.description ) { #>
<span id="{{ descriptionId }}" class="description customize-control-description">{{{ data.description }}}</span>
<# } #>
<# _.each( data.choices, function( val, key ) { #>
<span class="customize-inside-control-row">
<#
var value, text;
if ( _.isObject( val ) ) {
value = val.value;
text = val.text;
} else {
value = key;
text = val;
}
#>
<input
id="{{ inputId + '-' + value }}"
type="radio"
value="{{ value }}"
name="{{ inputId }}"
data-customize-setting-key-link="default"
{{{ describedByAttr }}}
>
<label for="{{ inputId + '-' + value }}">{{ text }}</label>
</span>
<# } ); #>
<#
break;
default:
#>
<# if ( data.label ) { #>
<label for="{{ inputId }}" class="customize-control-title">
{{ data.label }}
</label>
<# } #>
<# if ( data.description ) { #>
<span id="{{ descriptionId }}" class="description customize-control-description">{{{ data.description }}}</span>
<# } #>

<#
var inputAttrs = {
id: inputId,
'data-customize-setting-key-link': 'default'
};
if ( 'textarea' === data.type ) {
inputAttrs.rows = '5';
} else if ( 'button' === data.type ) {
inputAttrs['class'] = 'button button-secondary';
inputAttrs.type = 'button';
} else {
inputAttrs.type = data.type;
}
if ( data.description ) {
inputAttrs['aria-describedby'] = descriptionId;
}
_.extend( inputAttrs, data.input_attrs );
#>

<# if ( 'button' === data.type ) { #>
<button
<# _.each( _.extend( inputAttrs ), function( value, key ) { #>
{{{ key }}}="{{ value }}"
<# } ); #>
>{{ inputAttrs.value }}</button>
<# } else if ( 'textarea' === data.type ) { #>
<textarea
<# _.each( _.extend( inputAttrs ), function( value, key ) { #>
{{{ key }}}="{{ value }}"
<# }); #>
>{{ inputAttrs.value }}</textarea>
<# } else if ( 'select' === data.type ) { #>
<# delete inputAttrs.type; #>
<select
<# _.each( _.extend( inputAttrs ), function( value, key ) { #>
{{{ key }}}="{{ value }}"
<# }); #>
>
<# _.each( data.choices, function( val, key ) { #>
<#
var value, text;
if ( _.isObject( val ) ) {
value = val.value;
text = val.text;
} else {
value = key;
text = val;
}
#>
<option value="{{ value }}">{{ text }}</option>
<# } ); #>
</select>
<# } else { #>
<input
<# _.each( _.extend( inputAttrs ), function( value, key ) { #>
{{{ key }}}="{{ value }}"
<# }); #>
>
<# } #>
<# } #>
</script>

<script type="text/html" id="tmpl-customize-notification">
<li class="notice notice-{{ data.type || 'info' }} {{ data.alt ? 'notice-alt' : '' }} {{ data.dismissible ? 'is-dismissible' : '' }} {{ data.containerClasses || '' }}" data-code="{{ data.code }}" data-type="{{ data.type }}">
<div class="notification-message">{{{ data.message || data.code }}}</div>
<# if ( data.dismissible ) { #>
<button type="button" class="notice-dismiss"><span class="screen-reader-text">
<?php
/* translators: Hidden accessibility text. */
_e( 'Dismiss' );
?>
</span></button>
<# } #>
</li>
</script>

<script type="text/html" id="tmpl-customize-changeset-locked-notification">
<li class="notice notice-{{ data.type || 'info' }} {{ data.containerClasses || '' }}" data-code="{{ data.code }}" data-type="{{ data.type }}">
<div class="notification-message customize-changeset-locked-message {{ data.lockUser.avatar ? 'has-avatar' : '' }}">
<# if ( data.lockUser.avatar ) { #>
<img class="customize-changeset-locked-avatar" src="{{ data.lockUser.avatar }}" alt="{{ data.lockUser.name }}" />
<# } #>
<p class="currently-editing">
<# if ( data.message ) { #>
{{{ data.message }}}
<# } else if ( data.allowOverride ) { #>
<?php
echo esc_html( sprintf( $l10n['locked_allow_override'], '{{ data.lockUser.name }}' ) );
?>
<# } else { #>
<?php
echo esc_html( sprintf( $l10n['locked'], '{{ data.lockUser.name }}' ) );
?>
<# } #>
</p>
<p class="notice notice-error notice-alt" hidden></p>
<p class="action-buttons">
<# if ( data.returnUrl !== data.previewUrl ) { #>
<a class="button customize-notice-go-back-button" href="{{ data.returnUrl }}"><?php _e( 'Go back' ); ?></a>
<# } #>
<a class="button customize-notice-preview-button" href="{{ data.frontendPreviewUrl }}"><?php _e( 'Preview' ); ?></a>
<# if ( data.allowOverride ) { #>
<button class="button button-primary wp-tab-last customize-notice-take-over-button"><?php _e( 'Take over' ); ?></button>
<# } #>
</p>
</div>
</li>
</script>

<script type="text/html" id="tmpl-customize-code-editor-lint-error-notification">
<li class="notice notice-{{ data.type || 'info' }} {{ data.alt ? 'notice-alt' : '' }} {{ data.dismissible ? 'is-dismissible' : '' }} {{ data.containerClasses || '' }}" data-code="{{ data.code }}" data-type="{{ data.type }}">
<div class="notification-message">{{{ data.message || data.code }}}</div>

<p>
<# var elementId = 'el-' + String( Math.random() ); #>
<input id="{{ elementId }}" type="checkbox">
<label for="{{ elementId }}"><?php _e( 'Update anyway, even though it might break your site?' ); ?></label>
</p>
</li>
</script>

<?php
/* The following template is obsolete in core but retained for plugins. */
?>
<script type="text/html" id="tmpl-customize-control-notifications">
<ul>
<# _.each( data.notifications, function( notification ) { #>
<li class="notice notice-{{ notification.type || 'info' }} {{ data.altNotice ? 'notice-alt' : '' }}" data-code="{{ notification.code }}" data-type="{{ notification.type }}">{{{ notification.message || notification.code }}}</li>
<# } ); #>
</ul>
</script>

<script type="text/html" id="tmpl-customize-preview-link-control" >
<# var elementPrefix = _.uniqueId( 'el' ) + '-' #>
<p class="customize-control-title">
<?php esc_html_e( 'Share Preview Link' ); ?>
</p>
<p class="description customize-control-description"><?php esc_html_e( 'See how changes would look live on your website, and share the preview with people who can\'t access the Customizer.' ); ?></p>
<div class="customize-control-notifications-container"></div>
<div class="preview-link-wrapper">
<label for="{{ elementPrefix }}customize-preview-link-input" class="screen-reader-text">
<?php
/* translators: Hidden accessibility text. */
esc_html_e( 'Preview Link' );
?>
</label>
<a href="" target="">
<span class="preview-control-element" data-component="url"></span>
<span class="screen-reader-text">
<?php
/* translators: Hidden accessibility text. */
_e( '(opens in a new tab)' );
?>
</span>
</a>
<input id="{{ elementPrefix }}customize-preview-link-input" readonly tabindex="-1" class="preview-control-element" data-component="input">
<button class="customize-copy-preview-link preview-control-element button button-secondary" data-component="button" data-copy-text="<?php esc_attr_e( 'Copy' ); ?>" data-copied-text="<?php esc_attr_e( 'Copied' ); ?>" ><?php esc_html_e( 'Copy' ); ?></button>
</div>
</script>
<script type="text/html" id="tmpl-customize-selected-changeset-status-control">
<# var inputId = _.uniqueId( 'customize-selected-changeset-status-control-input-' ); #>
<# var descriptionId = _.uniqueId( 'customize-selected-changeset-status-control-description-' ); #>
<# if ( data.label ) { #>
<label for="{{ inputId }}" class="customize-control-title">{{ data.label }}</label>
<# } #>
<# if ( data.description ) { #>
<span id="{{ descriptionId }}" class="description customize-control-description">{{{ data.description }}}</span>
<# } #>
<# _.each( data.choices, function( choice ) { #>
<# var choiceId = inputId + '-' + choice.status; #>
<span class="customize-inside-control-row">
<input id="{{ choiceId }}" type="radio" value="{{ choice.status }}" name="{{ inputId }}" data-customize-setting-key-link="default">
<label for="{{ choiceId }}">{{ choice.label }}</label>
</span>
<# } ); #>
</script>
<?php
}

/**
* Helper function to compare two objects by priority, ensuring sort stability via instance_number.
*
* @since 3.4.0
* @deprecated 4.7.0 Use wp_list_sort()
*
* @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 ) {
_deprecated_function( __METHOD__, '4.7.0', 'wp_list_sort' );

if ( $a->priority === $b->priority ) {
return $a->instance_number - $b->instance_number;
} else {
return $a->priority - $b->priority;
}
}

/**
* Prepares 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();
$this->controls = wp_list_sort(
$this->controls,
array(
'priority' => 'ASC',
'instance_number' => 'ASC',
),
'ASC',
true
);

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 = wp_list_sort(
$this->sections,
array(
'priority' => 'ASC',
'instance_number' => 'ASC',
),
'ASC',
true
);
$sections = array();

foreach ( $this->sections as $section ) {
if ( ! $section->check_capabilities() ) {
continue;
}

$section->controls = wp_list_sort(
$section->controls,
array(
'priority' => 'ASC',
'instance_number' => 'ASC',
)
);

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.
$this->panels = wp_list_sort(
$this->panels,
array(
'priority' => 'ASC',
'instance_number' => 'ASC',
),
'ASC',
true
);
$panels = array();

foreach ( $this->panels as $panel ) {
if ( ! $panel->check_capabilities() ) {
continue;
}

$panel->sections = wp_list_sort(
$panel->sections,
array(
'priority' => 'ASC',
'instance_number' => 'ASC',
),
'ASC',
true
);
$panels[ $panel->id ] = $panel;
}
$this->panels = $panels;

// Sort panels and top-level sections together.
$this->containers = array_merge( $this->panels, $this->sections );
$this->containers = wp_list_sort(
$this->containers,
array(
'priority' => 'ASC',
'instance_number' => 'ASC',
),
'ASC',
true
);
}

/**
* Enqueues scripts for customize controls.
*
* @since 3.4.0
*/
public function enqueue_control_scripts() {
foreach ( $this->controls as $control ) {
$control->enqueue();
}

if ( ! is_multisite() && ( current_user_can( 'install_themes' ) || current_user_can( 'update_themes' ) || current_user_can( 'delete_themes' ) ) ) {
wp_enqueue_script( 'updates' );
wp_localize_script(
'updates',
'_wpUpdatesItemCounts',
array(
'totals' => wp_get_update_data(),
)
);
}
}

/**
* Determines whether the user agent is iOS.
*
* @since 4.4.0
*
* @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'] );
}

/**
* Gets the template string for the Customizer pane document title.
*
* @since 4.4.0
*
* @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;
}

/**
* Sets the initial URL to be previewed.
*
* URL is validated.
*
* @since 4.4.0
*
* @param string $preview_url URL to be previewed.
*/
public function set_preview_url( $preview_url ) {
$preview_url = sanitize_url( $preview_url );
$this->preview_url = wp_validate_redirect( $preview_url, home_url( '/' ) );
}

/**
* Gets the initial URL to be previewed.
*
* @since 4.4.0
*
* @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;
}

/**
* Determines whether the admin and the frontend are on different domains.
*
* @since 4.7.0
*
* @return bool Whether cross-domain.
*/
public function is_cross_domain() {
$admin_origin = wp_parse_url( admin_url() );
$home_origin = wp_parse_url( home_url() );
$cross_domain = ( strtolower( $admin_origin['host'] ) !== strtolower( $home_origin['host'] ) );
return $cross_domain;
}

/**
* Gets URLs allowed to be previewed.
*
* If the front end 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 front end
* are on different domains to avoid the case where the front end doesn't have
* ssl certs. Domain mapping plugins can allow other urls in these conditions
* using the customize_allowed_urls filter.
*
* @since 4.7.0
*
* @return array Allowed URLs.
*/
public function get_allowed_urls() {
$allowed_urls = array( home_url( '/' ) );

if ( is_ssl() && ! $this->is_cross_domain() ) {
$allowed_urls[] = home_url( '/', 'https' );
}

/**
* Filters the list of URLs allowed to be clicked and followed in the Customizer preview.
*
* @since 3.4.0
*
* @param string[] $allowed_urls An array of allowed URLs.
*/
$allowed_urls = array_unique( apply_filters( 'customize_allowed_urls', $allowed_urls ) );

return $allowed_urls;
}

/**
* Gets messenger channel.
*
* @since 4.7.0
*
* @return string Messenger channel.
*/
public function get_messenger_channel() {
return $this->messenger_channel;
}

/**
* Sets URL to link the user to when closing the Customizer.
*
* URL is validated.
*
* @since 4.4.0
*
* @param string $return_url URL for return link.
*/
public function set_return_url( $return_url ) {
$return_url = sanitize_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;
}

/**
* Gets URL to link the user to when closing the Customizer.
*
* @since 4.4.0
*
* @global array $_registered_pages
*
* @return string URL for link to close Customizer.
*/
public function get_return_url() {
global $_registered_pages;

$referer = wp_get_referer();
$excluded_referer_basenames = array( 'customize.php', 'wp-login.php' );

if ( $this->return_url ) {
$return_url = $this->return_url;

$return_url_basename = wp_basename( parse_url( $this->return_url, PHP_URL_PATH ) );
$return_url_query = parse_url( $this->return_url, PHP_URL_QUERY );

if ( 'themes.php' === $return_url_basename && $return_url_query ) {
parse_str( $return_url_query, $query_vars );

/*
* If the return URL is a page added by a theme to the Appearance menu via add_submenu_page(),
* verify that it belongs to the active theme, otherwise fall back to the Themes screen.
*/
if ( isset( $query_vars['page'] ) && ! isset( $_registered_pages[ "appearance_page_{$query_vars['page']}" ] ) ) {
$return_url = admin_url( 'themes.php' );
}
}
} elseif ( $referer && ! in_array( wp_basename( parse_url( $referer, PHP_URL_PATH ) ), $excluded_referer_basenames, true ) ) {
$return_url = $referer;
} elseif ( $this->preview_url ) {
$return_url = $this->preview_url;
} else {
$return_url = home_url( '/' );
}

return $return_url;
}

/**
* Sets the autofocused constructs.
*
* @since 4.4.0
*
* @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' );
}

/**
* Gets the autofocused constructs.
*
* @since 4.4.0
*
* @return string[] {
* 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;
}

/**
* Gets nonces for the Customizer.
*
* @since 4.5.0
*
* @return array Nonces.
*/
public function get_nonces() {
$nonces = array(
'save' => wp_create_nonce( 'save-customize_' . $this->get_stylesheet() ),
'preview' => wp_create_nonce( 'preview-customize_' . $this->get_stylesheet() ),
'switch_themes' => wp_create_nonce( 'switch_themes' ),
'dismiss_autosave_or_lock' => wp_create_nonce( 'customize_dismiss_autosave_or_lock' ),
'override_lock' => wp_create_nonce( 'customize_override_changeset_lock' ),
'trash' => wp_create_nonce( 'trash_customize_changeset' ),
);

/**
* Filters nonces for Customizer.
*
* @since 4.2.0
*
* @param string[] $nonces Array of refreshed nonces for save and
* preview actions.
* @param WP_Customize_Manager $manager WP_Customize_Manager instance.
*/
$nonces = apply_filters( 'customize_refresh_nonces', $nonces, $this );

return $nonces;
}

/**
* Prints JavaScript settings for parent window.
*
* @since 4.4.0
*/
public function customize_pane_settings() {

$login_url = add_query_arg(
array(
'interim-login' => 1,
'customize-login' => 1,
),
wp_login_url()
);

// Ensure dirty flags are set for modified settings.
foreach ( array_keys( $this->unsanitized_post_values() ) as $setting_id ) {
$setting = $this->get_setting( $setting_id );
if ( $setting ) {
$setting->dirty = true;
}
}

$autosave_revision_post = null;
$autosave_autodraft_post = null;
$changeset_post_id = $this->changeset_post_id();
if ( ! $this->saved_starter_content_changeset && ! $this->autosaved() ) {
if ( $changeset_post_id ) {
if ( is_user_logged_in() ) {
$autosave_revision_post = wp_get_post_autosave( $changeset_post_id, get_current_user_id() );
}
} else {
$autosave_autodraft_posts = $this->get_changeset_posts(
array(
'posts_per_page' => 1,
'post_status' => 'auto-draft',
'exclude_restore_dismissed' => true,
)
);
if ( ! empty( $autosave_autodraft_posts ) ) {
$autosave_autodraft_post = array_shift( $autosave_autodraft_posts );
}
}
}

$current_user_can_publish = current_user_can( get_post_type_object( 'customize_changeset' )->cap->publish_posts );

// @todo Include all of the status labels here from script-loader.php, and then allow it to be filtered.
$status_choices = array();
if ( $current_user_can_publish ) {
$status_choices[] = array(
'status' => 'publish',
'label' => __( 'Publish' ),
);
}
$status_choices[] = array(
'status' => 'draft',
'label' => __( 'Save Draft' ),
);
if ( $current_user_can_publish ) {
$status_choices[] = array(
'status' => 'future',
'label' => _x( 'Schedule', 'customizer changeset action/button label' ),
);
}

// Prepare Customizer settings to pass to JavaScript.
$changeset_post = null;
if ( $changeset_post_id ) {
$changeset_post = get_post( $changeset_post_id );
}

// Determine initial date to be at present or future, not past.
$current_time = current_time( 'mysql', false );
$initial_date = $current_time;
if ( $changeset_post ) {
$initial_date = get_the_time( 'Y-m-d H:i:s', $changeset_post->ID );
if ( $initial_date < $current_time ) {
$initial_date = $current_time;
}
}

$lock_user_id = false;
if ( $this->changeset_post_id() ) {
$lock_user_id = wp_check_post_lock( $this->changeset_post_id() );
}

$settings = array(
'changeset' => array(
'uuid' => $this->changeset_uuid(),
'branching' => $this->branching(),
'autosaved' => $this->autosaved(),
'hasAutosaveRevision' => ! empty( $autosave_revision_post ),
'latestAutoDraftUuid' => $autosave_autodraft_post ? $autosave_autodraft_post->post_name : null,
'status' => $changeset_post ? $changeset_post->post_status : '',
'currentUserCanPublish' => $current_user_can_publish,
'publishDate' => $initial_date,
'statusChoices' => $status_choices,
'lockUser' => $lock_user_id ? $this->get_lock_user_data( $lock_user_id ) : null,
),
'initialServerDate' => $current_time,
'dateFormat' => get_option( 'date_format' ),
'timeFormat' => get_option( 'time_format' ),
'initialServerTimestamp' => floor( microtime( true ) * 1000 ),
'initialClientTimestamp' => -1, // To be set with JS below.
'timeouts' => array(
'windowRefresh' => 250,
'changesetAutoSave' => AUTOSAVE_INTERVAL * 1000,
'keepAliveCheck' => 2500,
'reflowPaneContents' => 100,
'previewFrameSensitivity' => 2000,
),
'theme' => array(
'stylesheet' => $this->get_stylesheet(),
'active' => $this->is_theme_active(),
'_canInstall' => current_user_can( 'install_themes' ),
),
'url' => array(
'preview' => sanitize_url( $this->get_preview_url() ),
'return' => sanitize_url( $this->get_return_url() ),
'parent' => sanitize_url( admin_url() ),
'activated' => sanitize_url( home_url( '/' ) ),
'ajax' => sanitize_url( admin_url( 'admin-ajax.php', 'relative' ) ),
'allowed' => array_map( 'sanitize_url', $this->get_allowed_urls() ),
'isCrossDomain' => $this->is_cross_domain(),
'home' => sanitize_url( home_url( '/' ) ),
'login' => sanitize_url( $login_url ),
),
'browser' => array(
'mobile' => wp_is_mobile(),
'ios' => $this->is_ios(),
),
'panels' => array(),
'sections' => array(),
'nonce' => $this->get_nonces(),
'autofocus' => $this->get_autofocus(),
'documentTitleTmpl' => $this->get_document_title_template(),
'previewableDevices' => $this->get_previewable_devices(),
'l10n' => array(
'confirmDeleteTheme' => __( 'Are you sure you want to delete this theme?' ),
/* translators: %d: Number of theme search results, which cannot currently consider singular vs. plural forms. */
'themeSearchResults' => __( '%d themes found' ),
/* translators: %d: Number of themes being displayed, which cannot currently consider singular vs. plural forms. */
'announceThemeCount' => __( 'Displaying %d themes' ),
/* translators: %s: Theme name. */
'announceThemeDetails' => __( 'Showing details for theme: %s' ),
),
);

// Temporarily disable installation in Customizer. See #42184.
$filesystem_method = get_filesystem_method();
ob_start();
$filesystem_credentials_are_stored = request_filesystem_credentials( self_admin_url() );
ob_end_clean();
if ( 'direct' !== $filesystem_method && ! $filesystem_credentials_are_stored ) {
$settings['theme']['_filesystemCredentialsNeeded'] = true;
}

// 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();
}
}
}
}

ob_start();
?>
<script>
var _wpCustomizeSettings = <?php echo wp_json_encode( $settings ); ?>;
_wpCustomizeSettings.initialClientTimestamp = _.now();
_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( $setting->json() )
);
}
}
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
wp_print_inline_script_tag( wp_remove_surrounding_empty_script_tags( ob_get_clean() ) );
}

/**
* Returns a list of devices to allow previewing.
*
* @since 4.5.0
*
* @return array List of devices with labels and default setting.
*/
public function get_previewable_devices() {
$devices = array(
'desktop' => array(
'label' => __( 'Enter desktop preview mode' ),
'default' => true,
),
'tablet' => array(
'label' => __( 'Enter tablet preview mode' ),
),
'mobile' => array(
'label' => __( 'Enter mobile preview mode' ),
),
);

/**
* Filters the available devices to allow previewing in the Customizer.
*
* @since 4.5.0
*
* @see WP_Customize_Manager::get_previewable_devices()
*
* @param array $devices List of devices with labels and default setting.
*/
$devices = apply_filters( 'customize_previewable_devices', $devices );

return $devices;
}

/**
* Registers some default controls.
*
* @since 3.4.0
*/
public function register_controls() {

/* Themes (controls are loaded via ajax) */

$this->add_panel(
new WP_Customize_Themes_Panel(
$this,
'themes',
array(
'title' => $this->theme()->display( 'Name' ),
'description' => (
'<p>' . __( 'Looking for a theme? You can search or browse the WordPress.org theme directory, install and preview themes, then activate them right here.' ) . '</p>' .
'<p>' . __( 'While previewing a new theme, you can continue to tailor things like widgets and menus, and explore theme-specific options.' ) . '</p>'
),
'capability' => 'switch_themes',
'priority' => 0,
)
)
);

$this->add_section(
new WP_Customize_Themes_Section(
$this,
'installed_themes',
array(
'title' => __( 'Installed themes' ),
'action' => 'installed',
'capability' => 'switch_themes',
'panel' => 'themes',
'priority' => 0,
)
)
);

if ( ! is_multisite() ) {
$this->add_section(
new WP_Customize_Themes_Section(
$this,
'wporg_themes',
array(
'title' => __( 'WordPress.org themes' ),
'action' => 'wporg',
'filter_type' => 'remote',
'capability' => 'install_themes',
'panel' => 'themes',
'priority' => 5,
)
)
);
}

// 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',
)
)
);

/* 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',
)
);

// Add a setting to hide header text if the theme doesn't support custom headers.
if ( ! current_theme_supports( 'custom-header', 'header-text' ) ) {
$this->add_setting(
'header_text',
array(
'theme_supports' => array( 'custom-logo', 'header-text' ),
'default' => 1,
'sanitize_callback' => 'absint',
)
);

$this->add_control(
'header_text',
array(
'label' => __( 'Display Site Title and Tagline' ),
'section' => 'title_tagline',
'settings' => 'header_text',
'type' => 'checkbox',
)
);
}

$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(
$this,
'site_icon',
array(
'label' => __( 'Site Icon' ),
'description' => sprintf(
/* translators: 1: pixel value for icon size. 2: pixel value for icon size. */
'<p>' . __( 'The Site Icon is what you see in browser tabs, bookmark bars, and within the WordPress mobile apps. It should be square and at least <code>%1$s by %2$s</code> pixels.' ) . '</p>',
512,
512
),
'section' => 'title_tagline',
'priority' => 60,
'height' => 512,
'width' => 512,
)
)
);

$this->add_setting(
'custom_logo',
array(
'theme_supports' => array( 'custom-logo' ),
'transport' => 'postMessage',
)
);

$custom_logo_args = get_theme_support( 'custom-logo' );
$this->add_control(
new WP_Customize_Cropped_Image_Control(
$this,
'custom_logo',
array(
'label' => __( 'Logo' ),
'section' => 'title_tagline',
'priority' => 8,
'height' => isset( $custom_logo_args[0]['height'] ) ? $custom_logo_args[0]['height'] : null,
'width' => isset( $custom_logo_args[0]['width'] ) ? $custom_logo_args[0]['width'] : null,
'flex_height' => isset( $custom_logo_args[0]['flex-height'] ) ? $custom_logo_args[0]['flex-height'] : null,
'flex_width' => isset( $custom_logo_args[0]['flex-width'] ) ? $custom_logo_args[0]['flex-width'] : null,
'button_labels' => array(
'select' => __( 'Select logo' ),
'change' => __( 'Change logo' ),
'remove' => __( 'Remove' ),
'default' => __( 'Default' ),
'placeholder' => __( 'No logo selected' ),
'frame_title' => __( 'Select logo' ),
'frame_button' => __( 'Choose logo' ),
),
)
)
);

$this->selective_refresh->add_partial(
'custom_logo',
array(
'settings' => array( 'custom_logo' ),
'selector' => '.custom-logo-link',
'render_callback' => array( $this, '_render_custom_logo_partial' ),
'container_inclusive' => true,
)
);

/* 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 Site Title and Tagline' ),
'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 */

if ( current_theme_supports( 'custom-header', 'video' ) ) {
$title = __( 'Header Media' );
$description = '<p>' . __( 'If you add a video, the image will be used as a fallback while the video loads.' ) . '</p>';

$width = absint( get_theme_support( 'custom-header', 'width' ) );
$height = absint( get_theme_support( 'custom-header', 'height' ) );
if ( $width && $height ) {
$control_description = sprintf(
/* translators: 1: .mp4, 2: Header size in pixels. */
__( 'Upload your video in %1$s format and minimize its file size for best results. Your theme recommends dimensions of %2$s pixels.' ),
'<code>.mp4</code>',
sprintf( '<strong>%s &times; %s</strong>', $width, $height )
);
} elseif ( $width ) {
$control_description = sprintf(
/* translators: 1: .mp4, 2: Header width in pixels. */
__( 'Upload your video in %1$s format and minimize its file size for best results. Your theme recommends a width of %2$s pixels.' ),
'<code>.mp4</code>',
sprintf( '<strong>%s</strong>', $width )
);
} else {
$control_description = sprintf(
/* translators: 1: .mp4, 2: Header height in pixels. */
__( 'Upload your video in %1$s format and minimize its file size for best results. Your theme recommends a height of %2$s pixels.' ),
'<code>.mp4</code>',
sprintf( '<strong>%s</strong>', $height )
);
}
} else {
$title = __( 'Header Image' );
$description = '';
$control_description = '';
}

$this->add_section(
'header_image',
array(
'title' => $title,
'description' => $description,
'theme_supports' => 'custom-header',
'priority' => 60,
)
);

$this->add_setting(
'header_video',
array(
'theme_supports' => array( 'custom-header', 'video' ),
'transport' => 'postMessage',
'sanitize_callback' => 'absint',
'validate_callback' => array( $this, '_validate_header_video' ),
)
);

$this->add_setting(
'external_header_video',
array(
'theme_supports' => array( 'custom-header', 'video' ),
'transport' => 'postMessage',
'sanitize_callback' => array( $this, '_sanitize_external_header_video' ),
'validate_callback' => array( $this, '_validate_external_header_video' ),
)
);

$this->add_setting(
new WP_Customize_Filter_Setting(
$this,
'header_image',
array(
'default' => sprintf( get_theme_support( 'custom-header', 'default-image' ), get_template_directory_uri(), get_stylesheet_directory_uri() ),
'theme_supports' => 'custom-header',
)
)
);

$this->add_setting(
new WP_Customize_Header_Image_Setting(
$this,
'header_image_data',
array(
'theme_supports' => 'custom-header',
)
)
);

/*
* Switch image settings to postMessage when video support is enabled since
* it entails that the_custom_header_markup() will be used, and thus selective
* refresh can be utilized.
*/
if ( current_theme_supports( 'custom-header', 'video' ) ) {
$this->get_setting( 'header_image' )->transport = 'postMessage';
$this->get_setting( 'header_image_data' )->transport = 'postMessage';
}

$this->add_control(
new WP_Customize_Media_Control(
$this,
'header_video',
array(
'theme_supports' => array( 'custom-header', 'video' ),
'label' => __( 'Header Video' ),
'description' => $control_description,
'section' => 'header_image',
'mime_type' => 'video',
'active_callback' => 'is_header_video_active',
)
)
);

$this->add_control(
'external_header_video',
array(
'theme_supports' => array( 'custom-header', 'video' ),
'type' => 'url',
'description' => __( 'Or, enter a YouTube URL:' ),
'section' => 'header_image',
'active_callback' => 'is_header_video_active',
)
);

$this->add_control( new WP_Customize_Header_Image_Control( $this ) );

$this->selective_refresh->add_partial(
'custom_header',
array(
'selector' => '#wp-custom-header',
'render_callback' => 'the_custom_header_markup',
'settings' => array( 'header_video', 'external_header_video', 'header_image' ), // The image is used as a video fallback here.
'container_inclusive' => true,
)
);

/* 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',
'sanitize_callback' => array( $this, '_sanitize_background_setting' ),
)
);

$this->add_setting(
new WP_Customize_Background_Image_Setting(
$this,
'background_image_thumb',
array(
'theme_supports' => 'custom-background',
'sanitize_callback' => array( $this, '_sanitize_background_setting' ),
)
)
);

$this->add_control( new WP_Customize_Background_Image_Control( $this ) );

$this->add_setting(
'background_preset',
array(
'default' => get_theme_support( 'custom-background', 'default-preset' ),
'theme_supports' => 'custom-background',
'sanitize_callback' => array( $this, '_sanitize_background_setting' ),
)
);

$this->add_control(
'background_preset',
array(
'label' => _x( 'Preset', 'Background Preset' ),
'section' => 'background_image',
'type' => 'select',
'choices' => array(
'default' => _x( 'Default', 'Default Preset' ),
'fill' => __( 'Fill Screen' ),
'fit' => __( 'Fit to Screen' ),
'repeat' => _x( 'Repeat', 'Repeat Image' ),
'custom' => _x( 'Custom', 'Custom Preset' ),
),
)
);

$this->add_setting(
'background_position_x',
array(
'default' => get_theme_support( 'custom-background', 'default-position-x' ),
'theme_supports' => 'custom-background',
'sanitize_callback' => array( $this, '_sanitize_background_setting' ),
)
);

$this->add_setting(
'background_position_y',
array(
'default' => get_theme_support( 'custom-background', 'default-position-y' ),
'theme_supports' => 'custom-background',
'sanitize_callback' => array( $this, '_sanitize_background_setting' ),
)
);

$this->add_control(
new WP_Customize_Background_Position_Control(
$this,
'background_position',
array(
'label' => __( 'Image Position' ),
'section' => 'background_image',
'settings' => array(
'x' => 'background_position_x',
'y' => 'background_position_y',
),
)
)
);

$this->add_setting(
'background_size',
array(
'default' => get_theme_support( 'custom-background', 'default-size' ),
'theme_supports' => 'custom-background',
'sanitize_callback' => array( $this, '_sanitize_background_setting' ),
)
);

$this->add_control(
'background_size',
array(
'label' => __( 'Image Size' ),
'section' => 'background_image',
'type' => 'select',
'choices' => array(
'auto' => _x( 'Original', 'Original Size' ),
'contain' => __( 'Fit to Screen' ),
'cover' => __( 'Fill Screen' ),
),
)
);

$this->add_setting(
'background_repeat',
array(
'default' => get_theme_support( 'custom-background', 'default-repeat' ),
'sanitize_callback' => array( $this, '_sanitize_background_setting' ),
'theme_supports' => 'custom-background',
)
);

$this->add_control(
'background_repeat',
array(
'label' => __( 'Repeat Background Image' ),
'section' => 'background_image',
'type' => 'checkbox',
)
);

$this->add_setting(
'background_attachment',
array(
'default' => get_theme_support( 'custom-background', 'default-attachment' ),
'sanitize_callback' => array( $this, '_sanitize_background_setting' ),
'theme_supports' => 'custom-background',
)
);

$this->add_control(
'background_attachment',
array(
'label' => __( 'Scroll with Page' ),
'section' => 'background_image',
'type' => 'checkbox',
)
);

/*
* 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', 'preset', 'position_x', 'position_y', 'size', 'repeat', 'attachment' ) as $prop ) {
$this->get_setting( 'background_' . $prop )->transport = 'postMessage';
}
}

/*
* Static Front Page
* See also https://core.trac.wordpress.org/ticket/19627 which introduces the static-front-page theme_support.
* The following replicates behavior from options-reading.php.
*/

$this->add_section(
'static_front_page',
array(
'title' => __( 'Homepage Settings' ),
'priority' => 120,
'description' => __( 'You can choose what&#8217;s displayed on the homepage of your site. It can be posts in reverse chronological order (classic blog), or a fixed/static page. To set a static homepage, you first need to create two Pages. One will become the homepage, and the other will be where your posts are displayed.' ),
'active_callback' => array( $this, 'has_published_pages' ),
)
);

$this->add_setting(
'show_on_front',
array(
'default' => get_option( 'show_on_front' ),
'capability' => 'manage_options',
'type' => 'option',
)
);

$this->add_control(
'show_on_front',
array(
'label' => __( 'Your homepage 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',
)
);

$this->add_control(
'page_on_front',
array(
'label' => __( 'Homepage' ),
'section' => 'static_front_page',
'type' => 'dropdown-pages',
'allow_addition' => true,
)
);

$this->add_setting(
'page_for_posts',
array(
'type' => 'option',
'capability' => 'manage_options',
)
);

$this->add_control(
'page_for_posts',
array(
'label' => __( 'Posts page' ),
'section' => 'static_front_page',
'type' => 'dropdown-pages',
'allow_addition' => true,
)
);

/* Custom CSS */
$section_description = '<p>';
$section_description .= __( 'Add your own CSS code here to customize the appearance and layout of your site.' );
$section_description .= sprintf(
' <a href="%1$s" class="external-link" target="_blank">%2$s<span class="screen-reader-text"> %3$s</span></a>',
esc_url( __( 'https://developer.wordpress.org/advanced-administration/wordpress/css/' ) ),
__( 'Learn more about CSS' ),
/* translators: Hidden accessibility text. */
__( '(opens in a new tab)' )
);
$section_description .= '</p>';

$section_description .= '<p id="editor-keyboard-trap-help-1">' . __( 'When using a keyboard to navigate:' ) . '</p>';
$section_description .= '<ul>';
$section_description .= '<li id="editor-keyboard-trap-help-2">' . __( 'In the editing area, the Tab key enters a tab character.' ) . '</li>';
$section_description .= '<li id="editor-keyboard-trap-help-3">' . __( 'To move away from this area, press the Esc key followed by the Tab key.' ) . '</li>';
$section_description .= '<li id="editor-keyboard-trap-help-4">' . __( 'Screen reader users: when in forms mode, you may need to press the Esc key twice.' ) . '</li>';
$section_description .= '</ul>';

if ( 'false' !== wp_get_current_user()->syntax_highlighting ) {
$section_description .= '<p>';
$section_description .= sprintf(
/* translators: 1: Link to user profile, 2: Additional link attributes, 3: Accessibility text. */
__( 'The edit field automatically highlights code syntax. You can disable this in your <a href="%1$s" %2$s>user profile%3$s</a> to work in plain text mode.' ),
esc_url( get_edit_profile_url() ),
'class="external-link" target="_blank"',
sprintf(
'<span class="screen-reader-text"> %s</span>',
/* translators: Hidden accessibility text. */
__( '(opens in a new tab)' )
)
);
$section_description .= '</p>';
}

$section_description .= '<p class="section-description-buttons">';
$section_description .= '<button type="button" class="button-link section-description-close">' . __( 'Close' ) . '</button>';
$section_description .= '</p>';

$this->add_section(
'custom_css',
array(
'title' => __( 'Additional CSS' ),
'priority' => 200,
'description_hidden' => true,
'description' => $section_description,
)
);

$custom_css_setting = new WP_Customize_Custom_CSS_Setting(
$this,
sprintf( 'custom_css[%s]', get_stylesheet() ),
array(
'capability' => 'edit_css',
'default' => '',
)
);
$this->add_setting( $custom_css_setting );

$this->add_control(
new WP_Customize_Code_Editor_Control(
$this,
'custom_css',
array(
'label' => __( 'CSS code' ),
'section' => 'custom_css',
'settings' => array( 'default' => $custom_css_setting->id ),
'code_type' => 'text/css',
'input_attrs' => array(
'aria-describedby' => 'editor-keyboard-trap-help-1 editor-keyboard-trap-help-2 editor-keyboard-trap-help-3 editor-keyboard-trap-help-4',
),
)
)
);
}

/**
* Returns whether there are published pages.
*
* Used as active callback for static front page section and controls.
*
* @since 4.7.0
*
* @return bool Whether there are published (or to be published) pages.
*/
public function has_published_pages() {

$setting = $this->get_setting( 'nav_menus_created_posts' );
if ( $setting ) {
foreach ( $setting->value() as $post_id ) {
if ( 'page' === get_post_type( $post_id ) ) {
return true;
}
}
}

return 0 !== count(
get_pages(
array(
'number' => 1,
'hierarchical' => 0,
)
)
);
}

/**
* Adds settings from the POST data that were not added with code, e.g. dynamically-created settings for Widgets
*
* @since 4.2.0
*
* @see add_dynamic_settings()
*/
public function register_dynamic_settings() {
$setting_ids = array_keys( $this->unsanitized_post_values() );
$this->add_dynamic_settings( $setting_ids );
}

/**
* Loads themes into the theme browsing/installation UI.
*
* @since 4.9.0
*/
public function handle_load_themes_request() {
check_ajax_referer( 'switch_themes', 'nonce' );

if ( ! current_user_can( 'switch_themes' ) ) {
wp_die( -1 );
}

if ( empty( $_POST['theme_action'] ) ) {
wp_send_json_error( 'missing_theme_action' );
}
$theme_action = sanitize_key( $_POST['theme_action'] );
$themes = array();
$args = array();

// Define query filters based on user input.
if ( ! array_key_exists( 'search', $_POST ) ) {
$args['search'] = '';
} else {
$args['search'] = sanitize_text_field( wp_unslash( $_POST['search'] ) );
}

if ( ! array_key_exists( 'tags', $_POST ) ) {
$args['tag'] = '';
} else {
$args['tag'] = array_map( 'sanitize_text_field', wp_unslash( (array) $_POST['tags'] ) );
}

if ( ! array_key_exists( 'page', $_POST ) ) {
$args['page'] = 1;
} else {
$args['page'] = absint( $_POST['page'] );
}

require_once ABSPATH . 'wp-admin/includes/theme.php';

if ( 'installed' === $theme_action ) {

// Load all installed themes from wp_prepare_themes_for_js().
$themes = array( 'themes' => array() );
foreach ( wp_prepare_themes_for_js() as $theme ) {
$theme['type'] = 'installed';
$theme['active'] = ( isset( $_POST['customized_theme'] ) && $_POST['customized_theme'] === $theme['id'] );
$themes['themes'][] = $theme;
}
} elseif ( 'wporg' === $theme_action ) {

// Load WordPress.org themes from the .org API and normalize data to match installed theme objects.
if ( ! current_user_can( 'install_themes' ) ) {
wp_die( -1 );
}

// Arguments for all queries.
$wporg_args = array(
'per_page' => 100,
'fields' => array(
'reviews_url' => true, // Explicitly request the reviews URL to be linked from the customizer.
),
);

$args = array_merge( $wporg_args, $args );

if ( '' === $args['search'] && '' === $args['tag'] ) {
$args['browse'] = 'new'; // Sort by latest themes by default.
}

// Load themes from the .org API.
$themes = themes_api( 'query_themes', $args );
if ( is_wp_error( $themes ) ) {
wp_send_json_error();
}

// This list matches the allowed tags in wp-admin/includes/theme-install.php.
$themes_allowedtags = array_fill_keys(
array( 'a', 'abbr', 'acronym', 'code', 'pre', 'em', 'strong', 'div', 'p', 'ul', 'ol', 'li', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'img' ),
array()
);
$themes_allowedtags['a'] = array_fill_keys( array( 'href', 'title', 'target' ), true );
$themes_allowedtags['acronym']['title'] = true;
$themes_allowedtags['abbr']['title'] = true;
$themes_allowedtags['img'] = array_fill_keys( array( 'src', 'class', 'alt' ), true );

// Prepare a list of installed themes to check against before the loop.
$installed_themes = array();
$wp_themes = wp_get_themes();
foreach ( $wp_themes as $theme ) {
$installed_themes[] = $theme->get_stylesheet();
}
$update_php = network_admin_url( 'update.php?action=install-theme' );

// Set up properties for themes available on WordPress.org.
foreach ( $themes->themes as &$theme ) {
$theme->install_url = add_query_arg(
array(
'theme' => $theme->slug,
'_wpnonce' => wp_create_nonce( 'install-theme_' . $theme->slug ),
),
$update_php
);

$theme->name = wp_kses( $theme->name, $themes_allowedtags );
$theme->version = wp_kses( $theme->version, $themes_allowedtags );
$theme->description = wp_kses( $theme->description, $themes_allowedtags );
$theme->stars = wp_star_rating(
array(
'rating' => $theme->rating,
'type' => 'percent',
'number' => $theme->num_ratings,
'echo' => false,
)
);
$theme->num_ratings = number_format_i18n( $theme->num_ratings );
$theme->preview_url = set_url_scheme( $theme->preview_url );

// Handle themes that are already installed as installed themes.
if ( in_array( $theme->slug, $installed_themes, true ) ) {
$theme->type = 'installed';
} else {
$theme->type = $theme_action;
}

// Set active based on customized theme.
$theme->active = ( isset( $_POST['customized_theme'] ) && $_POST['customized_theme'] === $theme->slug );

// Map available theme properties to installed theme properties.
$theme->id = $theme->slug;
$theme->screenshot = array( $theme->screenshot_url );
$theme->authorAndUri = wp_kses( $theme->author['display_name'], $themes_allowedtags );
$theme->compatibleWP = is_wp_version_compatible( $theme->requires ); // phpcs:ignore WordPress.NamingConventions.ValidVariableName
$theme->compatiblePHP = is_php_version_compatible( $theme->requires_php ); // phpcs:ignore WordPress.NamingConventions.ValidVariableName

if ( isset( $theme->parent ) ) {
$theme->parent = $theme->parent['slug'];
} else {
$theme->parent = false;
}
unset( $theme->slug );
unset( $theme->screenshot_url );
unset( $theme->author );
} // End foreach().
} // End if().

/**
* Filters the theme data loaded in the customizer.
*
* This allows theme data to be loading from an external source,
* or modification of data loaded from `wp_prepare_themes_for_js()`
* or WordPress.org via `themes_api()`.
*
* @since 4.9.0
*
* @see wp_prepare_themes_for_js()
* @see themes_api()
* @see WP_Customize_Manager::__construct()
*
* @param array|stdClass $themes Nested array or object of theme data.
* @param array $args List of arguments, such as page, search term, and tags to query for.
* @param WP_Customize_Manager $manager Instance of Customize manager.
*/
$themes = apply_filters( 'customize_load_themes', $themes, $args, $this );

wp_send_json_success( $themes );
}


/**
* 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;
}

/**
* Callback for validating a background setting value.
*
* @since 4.7.0
*
* @param string $value Repeat value.
* @param WP_Customize_Setting $setting Setting.
* @return string|WP_Error Background value or validation error.
*/
public function _sanitize_background_setting( $value, $setting ) {
if ( 'background_repeat' === $setting->id ) {
if ( ! in_array( $value, array( 'repeat-x', 'repeat-y', 'repeat', 'no-repeat' ), true ) ) {
return new WP_Error( 'invalid_value', __( 'Invalid value for background repeat.' ) );
}
} elseif ( 'background_attachment' === $setting->id ) {
if ( ! in_array( $value, array( 'fixed', 'scroll' ), true ) ) {
return new WP_Error( 'invalid_value', __( 'Invalid value for background attachment.' ) );
}
} elseif ( 'background_position_x' === $setting->id ) {
if ( ! in_array( $value, array( 'left', 'center', 'right' ), true ) ) {
return new WP_Error( 'invalid_value', __( 'Invalid value for background position X.' ) );
}
} elseif ( 'background_position_y' === $setting->id ) {
if ( ! in_array( $value, array( 'top', 'center', 'bottom' ), true ) ) {
return new WP_Error( 'invalid_value', __( 'Invalid value for background position Y.' ) );
}
} elseif ( 'background_size' === $setting->id ) {
if ( ! in_array( $value, array( 'auto', 'contain', 'cover' ), true ) ) {
return new WP_Error( 'invalid_value', __( 'Invalid value for background size.' ) );
}
} elseif ( 'background_preset' === $setting->id ) {
if ( ! in_array( $value, array( 'default', 'fill', 'fit', 'repeat', 'custom' ), true ) ) {
return new WP_Error( 'invalid_value', __( 'Invalid value for background size.' ) );
}
} elseif ( 'background_image' === $setting->id || 'background_image_thumb' === $setting->id ) {
$value = empty( $value ) ? '' : sanitize_url( $value );
} else {
return new WP_Error( 'unrecognized_setting', __( 'Unrecognized background setting.' ) );
}
return $value;
}

/**
* Exports header video settings to facilitate selective refresh.
*
* @since 4.7.0
*
* @param array $response Response.
* @param WP_Customize_Selective_Refresh $selective_refresh Selective refresh component.
* @param array $partials Array of partials.
* @return array
*/
public function export_header_video_settings( $response, $selective_refresh, $partials ) {
if ( isset( $partials['custom_header'] ) ) {
$response['custom_header_settings'] = get_header_video_settings();
}

return $response;
}

/**
* Callback for validating the header_video value.
*
* Ensures that the selected video is less than 8MB and provides an error message.
*
* @since 4.7.0
*
* @param WP_Error $validity
* @param mixed $value
* @return mixed
*/
public function _validate_header_video( $validity, $value ) {
$video = get_attached_file( absint( $value ) );
if ( $video ) {
$size = filesize( $video );
if ( $size > 8 * MB_IN_BYTES ) {
$validity->add(
'size_too_large',
__( 'This video file is too large to use as a header video. Try a shorter video or optimize the compression settings and re-upload a file that is less than 8MB. Or, upload your video to YouTube and link it with the option below.' )
);
}
if ( ! str_ends_with( $video, '.mp4' ) && ! str_ends_with( $video, '.mov' ) ) { // Check for .mp4 or .mov format, which (assuming h.264 encoding) are the only cross-browser-supported formats.
$validity->add(
'invalid_file_type',
sprintf(
/* translators: 1: .mp4, 2: .mov */
__( 'Only %1$s or %2$s files may be used for header video. Please convert your video file and try again, or, upload your video to YouTube and link it with the option below.' ),
'<code>.mp4</code>',
'<code>.mov</code>'
)
);
}
}
return $validity;
}

/**
* Callback for validating the external_header_video value.
*
* Ensures that the provided URL is supported.
*
* @since 4.7.0
*
* @param WP_Error $validity
* @param mixed $value
* @return mixed
*/
public function _validate_external_header_video( $validity, $value ) {
$video = sanitize_url( $value );
if ( $video ) {
if ( ! preg_match( '#^https?://(?:www\.)?(?:youtube\.com/watch|youtu\.be/)#', $video ) ) {
$validity->add( 'invalid_url', __( 'Please enter a valid YouTube URL.' ) );
}
}
return $validity;
}

/**
* Callback for sanitizing the external_header_video value.
*
* @since 4.7.1
*
* @param string $value URL.
* @return string Sanitized URL.
*/
public function _sanitize_external_header_video( $value ) {
return sanitize_url( trim( $value ) );
}

/**
* Callback for rendering the custom logo, used in the custom_logo partial.
*
* This method exists because the partial object and context data are passed
* into a partial's render_callback so we cannot use get_custom_logo() as
* the render_callback directly since it expects a blog ID as the first
* argument.
*
* @see WP_Customize_Manager::register_controls()
*
* @since 4.5.0
*
* @return string Custom logo.
*/
public function _render_custom_logo_partial() {
return get_custom_logo();
}
}