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Edit File : class-wp-customize-widgets.php \| Size : 70.52 KB
<?php /** * WordPress Customize Widgets classes * * @package WordPress * @subpackage Customize * @since 3.9.0 / /* * Customize Widgets class. * * Implements widget management in the Customizer. * * @since 3.9.0 * * @see WP_Customize_Manager / #[AllowDynamicProperties] final class WP_Customize_Widgets { /* * WP_Customize_Manager instance. * * @since 3.9.0 * @var WP_Customize_Manager / public $manager; /* * All id_bases for widgets defined in core. * * @since 3.9.0 * @var array / protected $core_widget_id_bases = array( 'archives', 'calendar', 'categories', 'custom_html', 'links', 'media_audio', 'media_image', 'media_video', 'meta', 'nav_menu', 'pages', 'recent-comments', 'recent-posts', 'rss', 'search', 'tag_cloud', 'text', ); /* * @since 3.9.0 * @var array / protected $rendered_sidebars = array(); /* * @since 3.9.0 * @var array / protected $rendered_widgets = array(); /* * @since 3.9.0 * @var array / protected $old_sidebars_widgets = array(); /* * Mapping of widget ID base to whether it supports selective refresh. * * @since 4.5.0 * @var array / protected $selective_refreshable_widgets; /* * Mapping of setting type to setting ID pattern. * * @since 4.2.0 * @var array / protected $setting_id_patterns = array( 'widget_instance' => '/^widget_(?P<id_base>.+?)(?:\[(?P<widget_number>\d+)\])?$/', 'sidebar_widgets' => '/^sidebars_widgets\[(?P<sidebar_id>.+?)\]$/', ); /* * Initial loader. * * @since 3.9.0 * * @param WP_Customize_Manager $manager Customizer bootstrap instance. / public function __construct( $manager ) { $this->manager = $manager; // See https://github.com/xwp/wp-customize-snapshots/blob/962586659688a5b1fd9ae93618b7ce2d4e7a421c/php/class-customize-snapshot-manager.php#L420-L449 add_filter( 'customize_dynamic_setting_args', array( $this, 'filter_customize_dynamic_setting_args' ), 10, 2 ); add_action( 'widgets_init', array( $this, 'register_settings' ), 95 ); add_action( 'customize_register', array( $this, 'schedule_customize_register' ), 1 ); // Skip remaining hooks when the user can't manage widgets anyway. if ( ! current_user_can( 'edit_theme_options' ) ) { return; } add_action( 'wp_loaded', array( $this, 'override_sidebars_widgets_for_theme_switch' ) ); add_action( 'customize_controls_init', array( $this, 'customize_controls_init' ) ); add_action( 'customize_controls_enqueue_scripts', array( $this, 'enqueue_scripts' ) ); add_action( 'customize_controls_print_styles', array( $this, 'print_styles' ) ); add_action( 'customize_controls_print_scripts', array( $this, 'print_scripts' ) ); add_action( 'customize_controls_print_footer_scripts', array( $this, 'print_footer_scripts' ) ); add_action( 'customize_controls_print_footer_scripts', array( $this, 'output_widget_control_templates' ) ); add_action( 'customize_preview_init', array( $this, 'customize_preview_init' ) ); add_filter( 'customize_refresh_nonces', array( $this, 'refresh_nonces' ) ); add_filter( 'should_load_block_editor_scripts_and_styles', array( $this, 'should_load_block_editor_scripts_and_styles' ) ); add_action( 'dynamic_sidebar', array( $this, 'tally_rendered_widgets' ) ); add_filter( 'is_active_sidebar', array( $this, 'tally_sidebars_via_is_active_sidebar_calls' ), 10, 2 ); add_filter( 'dynamic_sidebar_has_widgets', array( $this, 'tally_sidebars_via_dynamic_sidebar_calls' ), 10, 2 ); // Selective Refresh. add_filter( 'customize_dynamic_partial_args', array( $this, 'customize_dynamic_partial_args' ), 10, 2 ); add_action( 'customize_preview_init', array( $this, 'selective_refresh_init' ) ); } /* * List whether each registered widget can be use selective refresh. * * If the theme does not support the customize-selective-refresh-widgets feature, * then this will always return an empty array. * * @since 4.5.0 * * @global WP_Widget_Factory $wp_widget_factory * * @return array Mapping of id_base to support. If theme doesn't support * selective refresh, an empty array is returned. / public function get_selective_refreshable_widgets() { global $wp_widget_factory; if ( ! current_theme_supports( 'customize-selective-refresh-widgets' ) ) { return array(); } if ( ! isset( $this->selective_refreshable_widgets ) ) { $this->selective_refreshable_widgets = array(); foreach ( $wp_widget_factory->widgets as $wp_widget ) { $this->selective_refreshable_widgets[ $wp_widget->id_base ] = ! empty( $wp_widget->widget_options['customize_selective_refresh'] ); } } return $this->selective_refreshable_widgets; } /* * Determines if a widget supports selective refresh. * * @since 4.5.0 * * @param string $id_base Widget ID Base. * @return bool Whether the widget can be selective refreshed. / public function is_widget_selective_refreshable( $id_base ) { $selective_refreshable_widgets = $this->get_selective_refreshable_widgets(); return ! empty( $selective_refreshable_widgets[ $id_base ] ); } /* * Retrieves the widget setting type given a setting ID. * * @since 4.2.0 * * @param string $setting_id Setting ID. * @return string\|void Setting type. / protected function get_setting_type( $setting_id ) { static $cache = array(); if ( isset( $cache[ $setting_id ] ) ) { return $cache[ $setting_id ]; } foreach ( $this->setting_id_patterns as $type => $pattern ) { if ( preg_match( $pattern, $setting_id ) ) { $cache[ $setting_id ] = $type; return $type; } } } /* * Inspects the incoming customized data for any widget settings, and dynamically adds * them up-front so widgets will be initialized properly. * * @since 4.2.0 / public function register_settings() { $widget_setting_ids = array(); $incoming_setting_ids = array_keys( $this->manager->unsanitized_post_values() ); foreach ( $incoming_setting_ids as $setting_id ) { if ( ! is_null( $this->get_setting_type( $setting_id ) ) ) { $widget_setting_ids[] = $setting_id; } } if ( $this->manager->doing_ajax( 'update-widget' ) && isset( $_REQUEST['widget-id'] ) ) { $widget_setting_ids[] = $this->get_setting_id( wp_unslash( $_REQUEST['widget-id'] ) ); } $settings = $this->manager->add_dynamic_settings( array_unique( $widget_setting_ids ) ); if ( $this->manager->settings_previewed() ) { foreach ( $settings as $setting ) { $setting->preview(); } } } /* * Determines the arguments for a dynamically-created setting. * * @since 4.2.0 * * @param false\|array $args The arguments to the WP_Customize_Setting constructor. * @param string $setting_id ID for dynamic setting, usually coming from `$_POST['customized']`. * @return array\|false Setting arguments, false otherwise. / public function filter_customize_dynamic_setting_args( $args, $setting_id ) { if ( $this->get_setting_type( $setting_id ) ) { $args = $this->get_setting_args( $setting_id ); } return $args; } /* * Retrieves an unslashed post value or return a default. * * @since 3.9.0 * * @param string $name Post value. * @param mixed $default_value Default post value. * @return mixed Unslashed post value or default value. / protected function get_post_value( $name, $default_value = null ) { if ( ! isset( $_POST[ $name ] ) ) { return $default_value; } return wp_unslash( $_POST[ $name ] ); } /* * Override sidebars_widgets for theme switch. * * When switching a theme via the Customizer, supply any previously-configured * sidebars_widgets from the target theme as the initial sidebars_widgets * setting. Also store the old theme's existing settings so that they can * be passed along for storing in the sidebars_widgets theme_mod when the * theme gets switched. * * @since 3.9.0 * * @global array $sidebars_widgets * @global array $_wp_sidebars_widgets / public function override_sidebars_widgets_for_theme_switch() { global $sidebars_widgets; if ( $this->manager->doing_ajax() \|\| $this->manager->is_theme_active() ) { return; } $this->old_sidebars_widgets = wp_get_sidebars_widgets(); add_filter( 'customize_value_old_sidebars_widgets_data', array( $this, 'filter_customize_value_old_sidebars_widgets_data' ) ); $this->manager->set_post_value( 'old_sidebars_widgets_data', $this->old_sidebars_widgets ); // Override any value cached in changeset. // retrieve_widgets() looks at the global $sidebars_widgets. $sidebars_widgets = $this->old_sidebars_widgets; $sidebars_widgets = retrieve_widgets( 'customize' ); add_filter( 'option_sidebars_widgets', array( $this, 'filter_option_sidebars_widgets_for_theme_switch' ), 1 ); // Reset global cache var used by wp_get_sidebars_widgets(). unset( $GLOBALS['_wp_sidebars_widgets'] ); } /* * Filters old_sidebars_widgets_data Customizer setting. * * When switching themes, filter the Customizer setting old_sidebars_widgets_data * to supply initial $sidebars_widgets before they were overridden by retrieve_widgets(). * The value for old_sidebars_widgets_data gets set in the old theme's sidebars_widgets * theme_mod. * * @since 3.9.0 * * @see WP_Customize_Widgets::handle_theme_switch() * * @param array $old_sidebars_widgets * @return array / public function filter_customize_value_old_sidebars_widgets_data( $old_sidebars_widgets ) { return $this->old_sidebars_widgets; } /* * Filters sidebars_widgets option for theme switch. * * When switching themes, the retrieve_widgets() function is run when the Customizer initializes, * and then the new sidebars_widgets here get supplied as the default value for the sidebars_widgets * option. * * @since 3.9.0 * * @see WP_Customize_Widgets::handle_theme_switch() * @global array $sidebars_widgets * * @param array $sidebars_widgets * @return array / public function filter_option_sidebars_widgets_for_theme_switch( $sidebars_widgets ) { $sidebars_widgets = $GLOBALS['sidebars_widgets']; $sidebars_widgets['array_version'] = 3; return $sidebars_widgets; } /* * Ensures all widgets get loaded into the Customizer. * * Note: these actions are also fired in wp_ajax_update_widget(). * * @since 3.9.0 / public function customize_controls_init() { /* This action is documented in wp-admin/includes/ajax-actions.php / do_action( 'load-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores /* This action is documented in wp-admin/includes/ajax-actions.php / do_action( 'widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores /* This action is documented in wp-admin/widgets.php / do_action( 'sidebar_admin_setup' ); } /* * Ensures widgets are available for all types of previews. * * When in preview, hook to {@see 'customize_register'} for settings after WordPress is loaded * so that all filters have been initialized (e.g. Widget Visibility). * * @since 3.9.0 / public function schedule_customize_register() { if ( is_admin() ) { $this->customize_register(); } else { add_action( 'wp', array( $this, 'customize_register' ) ); } } /* * Registers Customizer settings and controls for all sidebars and widgets. * * @since 3.9.0 * * @global array $wp_registered_widgets * @global array $wp_registered_widget_controls * @global array $wp_registered_sidebars / public function customize_register() { global $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_sidebars; $use_widgets_block_editor = wp_use_widgets_block_editor(); add_filter( 'sidebars_widgets', array( $this, 'preview_sidebars_widgets' ), 1 ); $sidebars_widgets = array_merge( array( 'wp_inactive_widgets' => array() ), array_fill_keys( array_keys( $wp_registered_sidebars ), array() ), wp_get_sidebars_widgets() ); $new_setting_ids = array(); / * Register a setting for all widgets, including those which are active, * inactive, and orphaned since a widget may get suppressed from a sidebar * via a plugin (like Widget Visibility). / foreach ( array_keys( $wp_registered_widgets ) as $widget_id ) { $setting_id = $this->get_setting_id( $widget_id ); $setting_args = $this->get_setting_args( $setting_id ); if ( ! $this->manager->get_setting( $setting_id ) ) { $this->manager->add_setting( $setting_id, $setting_args ); } $new_setting_ids[] = $setting_id; } / * Add a setting which will be supplied for the theme's sidebars_widgets * theme_mod when the theme is switched. / if ( ! $this->manager->is_theme_active() ) { $setting_id = 'old_sidebars_widgets_data'; $setting_args = $this->get_setting_args( $setting_id, array( 'type' => 'global_variable', 'dirty' => true, ) ); $this->manager->add_setting( $setting_id, $setting_args ); } $this->manager->add_panel( 'widgets', array( 'type' => 'widgets', 'title' => __( 'Widgets' ), 'description' => __( 'Widgets are independent sections of content that can be placed into widgetized areas provided by your theme (commonly called sidebars).' ), 'priority' => 110, 'active_callback' => array( $this, 'is_panel_active' ), 'auto_expand_sole_section' => true, 'theme_supports' => 'widgets', ) ); foreach ( $sidebars_widgets as $sidebar_id => $sidebar_widget_ids ) { if ( empty( $sidebar_widget_ids ) ) { $sidebar_widget_ids = array(); } $is_registered_sidebar = is_registered_sidebar( $sidebar_id ); $is_inactive_widgets = ( 'wp_inactive_widgets' === $sidebar_id ); $is_active_sidebar = ( $is_registered_sidebar && ! $is_inactive_widgets ); // Add setting for managing the sidebar's widgets. if ( $is_registered_sidebar \|\| $is_inactive_widgets ) { $setting_id = sprintf( 'sidebars_widgets[%s]', $sidebar_id ); $setting_args = $this->get_setting_args( $setting_id ); if ( ! $this->manager->get_setting( $setting_id ) ) { if ( ! $this->manager->is_theme_active() ) { $setting_args['dirty'] = true; } $this->manager->add_setting( $setting_id, $setting_args ); } $new_setting_ids[] = $setting_id; // Add section to contain controls. $section_id = sprintf( 'sidebar-widgets-%s', $sidebar_id ); if ( $is_active_sidebar ) { $section_args = array( 'title' => $wp_registered_sidebars[ $sidebar_id ]['name'], 'priority' => array_search( $sidebar_id, array_keys( $wp_registered_sidebars ), true ), 'panel' => 'widgets', 'sidebar_id' => $sidebar_id, ); if ( $use_widgets_block_editor ) { $section_args['description'] = ''; } else { $section_args['description'] = $wp_registered_sidebars[ $sidebar_id ]['description']; } /* * Filters Customizer widget section arguments for a given sidebar. * * @since 3.9.0 * * @param array $section_args Array of Customizer widget section arguments. * @param string $section_id Customizer section ID. * @param int\|string $sidebar_id Sidebar ID. / $section_args = apply_filters( 'customizer_widgets_section_args', $section_args, $section_id, $sidebar_id ); $section = new WP_Customize_Sidebar_Section( $this->manager, $section_id, $section_args ); $this->manager->add_section( $section ); if ( $use_widgets_block_editor ) { $control = new WP_Sidebar_Block_Editor_Control( $this->manager, $setting_id, array( 'section' => $section_id, 'sidebar_id' => $sidebar_id, 'label' => $section_args['title'], 'description' => $section_args['description'], ) ); } else { $control = new WP_Widget_Area_Customize_Control( $this->manager, $setting_id, array( 'section' => $section_id, 'sidebar_id' => $sidebar_id, 'priority' => count( $sidebar_widget_ids ), // place 'Add Widget' and 'Reorder' buttons at end. ) ); } $this->manager->add_control( $control ); $new_setting_ids[] = $setting_id; } } if ( ! $use_widgets_block_editor ) { // Add a control for each active widget (located in a sidebar). foreach ( $sidebar_widget_ids as $i => $widget_id ) { // Skip widgets that may have gone away due to a plugin being deactivated. if ( ! $is_active_sidebar \|\| ! isset( $wp_registered_widgets[ $widget_id ] ) ) { continue; } $registered_widget = $wp_registered_widgets[ $widget_id ]; $setting_id = $this->get_setting_id( $widget_id ); $id_base = $wp_registered_widget_controls[ $widget_id ]['id_base']; $control = new WP_Widget_Form_Customize_Control( $this->manager, $setting_id, array( 'label' => $registered_widget['name'], 'section' => $section_id, 'sidebar_id' => $sidebar_id, 'widget_id' => $widget_id, 'widget_id_base' => $id_base, 'priority' => $i, 'width' => $wp_registered_widget_controls[ $widget_id ]['width'], 'height' => $wp_registered_widget_controls[ $widget_id ]['height'], 'is_wide' => $this->is_wide_widget( $widget_id ), ) ); $this->manager->add_control( $control ); } } } if ( $this->manager->settings_previewed() ) { foreach ( $new_setting_ids as $new_setting_id ) { $this->manager->get_setting( $new_setting_id )->preview(); } } } /* * Determines whether the widgets panel is active, based on whether there are sidebars registered. * * @since 4.4.0 * * @see WP_Customize_Panel::$active_callback * * @global array $wp_registered_sidebars * @return bool Active. / public function is_panel_active() { global $wp_registered_sidebars; return ! empty( $wp_registered_sidebars ); } /* * Converts a widget_id into its corresponding Customizer setting ID (option name). * * @since 3.9.0 * * @param string $widget_id Widget ID. * @return string Maybe-parsed widget ID. / public function get_setting_id( $widget_id ) { $parsed_widget_id = $this->parse_widget_id( $widget_id ); $setting_id = sprintf( 'widget_%s', $parsed_widget_id['id_base'] ); if ( ! is_null( $parsed_widget_id['number'] ) ) { $setting_id .= sprintf( '[%d]', $parsed_widget_id['number'] ); } return $setting_id; } /* * Determines whether the widget is considered "wide". * * Core widgets which may have controls wider than 250, but can still be shown * in the narrow Customizer panel. The RSS and Text widgets in Core, for example, * have widths of 400 and yet they still render fine in the Customizer panel. * * This method will return all Core widgets as being not wide, but this can be * overridden with the {@see 'is_wide_widget_in_customizer'} filter. * * @since 3.9.0 * * @global array $wp_registered_widget_controls * * @param string $widget_id Widget ID. * @return bool Whether or not the widget is a "wide" widget. / public function is_wide_widget( $widget_id ) { global $wp_registered_widget_controls; $parsed_widget_id = $this->parse_widget_id( $widget_id ); $width = $wp_registered_widget_controls[ $widget_id ]['width']; $is_core = in_array( $parsed_widget_id['id_base'], $this->core_widget_id_bases, true ); $is_wide = ( $width > 250 && ! $is_core ); /* * Filters whether the given widget is considered "wide". * * @since 3.9.0 * * @param bool $is_wide Whether the widget is wide, Default false. * @param string $widget_id Widget ID. / return apply_filters( 'is_wide_widget_in_customizer', $is_wide, $widget_id ); } /* * Converts a widget ID into its id_base and number components. * * @since 3.9.0 * * @param string $widget_id Widget ID. * @return array Array containing a widget's id_base and number components. / public function parse_widget_id( $widget_id ) { $parsed = array( 'number' => null, 'id_base' => null, ); if ( preg_match( '/^(.+)-(\d+)$/', $widget_id, $matches ) ) { $parsed['id_base'] = $matches[1]; $parsed['number'] = (int) $matches[2]; } else { // Likely an old single widget. $parsed['id_base'] = $widget_id; } return $parsed; } /* * Converts a widget setting ID (option path) to its id_base and number components. * * @since 3.9.0 * * @param string $setting_id Widget setting ID. * @return array\|WP_Error Array containing a widget's id_base and number components, * or a WP_Error object. / public function parse_widget_setting_id( $setting_id ) { if ( ! preg_match( '/^(widget_(.+?))(?:\[(\d+)\])?$/', $setting_id, $matches ) ) { return new WP_Error( 'widget_setting_invalid_id' ); } $id_base = $matches[2]; $number = isset( $matches[3] ) ? (int) $matches[3] : null; return compact( 'id_base', 'number' ); } /* * Calls admin_print_styles-widgets.php and admin_print_styles hooks to * allow custom styles from plugins. * * @since 3.9.0 / public function print_styles() { /* This action is documented in wp-admin/admin-header.php / do_action( 'admin_print_styles-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores /* This action is documented in wp-admin/admin-header.php / do_action( 'admin_print_styles' ); } /* * Calls admin_print_scripts-widgets.php and admin_print_scripts hooks to * allow custom scripts from plugins. * * @since 3.9.0 / public function print_scripts() { /* This action is documented in wp-admin/admin-header.php / do_action( 'admin_print_scripts-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores /* This action is documented in wp-admin/admin-header.php / do_action( 'admin_print_scripts' ); } /* * Enqueues scripts and styles for Customizer panel and export data to JavaScript. * * @since 3.9.0 * * @global WP_Scripts $wp_scripts * @global array $wp_registered_sidebars * @global array $wp_registered_widgets / public function enqueue_scripts() { global $wp_scripts, $wp_registered_sidebars, $wp_registered_widgets; wp_enqueue_style( 'customize-widgets' ); wp_enqueue_script( 'customize-widgets' ); /* This action is documented in wp-admin/admin-header.php / do_action( 'admin_enqueue_scripts', 'widgets.php' ); / * Export available widgets with control_tpl removed from model * since plugins need templates to be in the DOM. / $available_widgets = array(); foreach ( $this->get_available_widgets() as $available_widget ) { unset( $available_widget['control_tpl'] ); $available_widgets[] = $available_widget; } $widget_reorder_nav_tpl = sprintf( '<div class="widget-reorder-nav"><span class="move-widget" tabindex="0">%1$s</span><span class="move-widget-down" tabindex="0">%2$s</span><span class="move-widget-up" tabindex="0">%3$s</span></div>', __( 'Move to another area…' ), __( 'Move down' ), __( 'Move up' ) ); $move_widget_area_tpl = str_replace( array( '{description}', '{btn}' ), array( __( 'Select an area to move this widget into:' ), _x( 'Move', 'Move widget' ), ), '<div class="move-widget-area"> <p class="description">{description}</p> <ul class="widget-area-select"> <% _.each( sidebars, function ( sidebar ){ %> <li class="" data-id="<%- sidebar.id %>" tabindex="0"> <div><strong><%- sidebar.name %></strong></div> <div><%- sidebar.description %></div> </li> <% }); %> </ul> <div class="move-widget-actions"> <button class="move-widget-btn button" type="button">{btn}</button> </div> </div>' ); / * Gather all strings in PHP that may be needed by JS on the client. * Once JS i18n is implemented (in #20491), this can be removed. / $some_non_rendered_areas_messages = array(); $some_non_rendered_areas_messages[1] = html_entity_decode( __( 'Your theme has 1 other widget area, but this particular page does not display it.' ), ENT_QUOTES, get_bloginfo( 'charset' ) ); $registered_sidebar_count = count( $wp_registered_sidebars ); for ( $non_rendered_count = 2; $non_rendered_count < $registered_sidebar_count; $non_rendered_count++ ) { $some_non_rendered_areas_messages[ $non_rendered_count ] = html_entity_decode( sprintf( / translators: %s: The number of other widget areas registered but not rendered. / _n( 'Your theme has %s other widget area, but this particular page does not display it.', 'Your theme has %s other widget areas, but this particular page does not display them.', $non_rendered_count ), number_format_i18n( $non_rendered_count ) ), ENT_QUOTES, get_bloginfo( 'charset' ) ); } if ( 1 === $registered_sidebar_count ) { $no_areas_shown_message = html_entity_decode( sprintf( __( 'Your theme has 1 widget area, but this particular page does not display it.' ) ), ENT_QUOTES, get_bloginfo( 'charset' ) ); } else { $no_areas_shown_message = html_entity_decode( sprintf( / translators: %s: The total number of widget areas registered. / _n( 'Your theme has %s widget area, but this particular page does not display it.', 'Your theme has %s widget areas, but this particular page does not display them.', $registered_sidebar_count ), number_format_i18n( $registered_sidebar_count ) ), ENT_QUOTES, get_bloginfo( 'charset' ) ); } $settings = array( 'registeredSidebars' => array_values( $wp_registered_sidebars ), 'registeredWidgets' => $wp_registered_widgets, 'availableWidgets' => $available_widgets, // @todo Merge this with registered_widgets. 'l10n' => array( 'saveBtnLabel' => __( 'Apply' ), 'saveBtnTooltip' => __( 'Save and preview changes before publishing them.' ), 'removeBtnLabel' => __( 'Remove' ), 'removeBtnTooltip' => __( 'Keep widget settings and move it to the inactive widgets' ), 'error' => __( 'An error has occurred. Please reload the page and try again.' ), 'widgetMovedUp' => __( 'Widget moved up' ), 'widgetMovedDown' => __( 'Widget moved down' ), 'navigatePreview' => __( 'You can navigate to other pages on your site while using the Customizer to view and edit the widgets displayed on those pages.' ), 'someAreasShown' => $some_non_rendered_areas_messages, 'noAreasShown' => $no_areas_shown_message, 'reorderModeOn' => __( 'Reorder mode enabled' ), 'reorderModeOff' => __( 'Reorder mode closed' ), 'reorderLabelOn' => esc_attr__( 'Reorder widgets' ), / translators: %d: The number of widgets found. / 'widgetsFound' => __( 'Number of widgets found: %d' ), 'noWidgetsFound' => __( 'No widgets found.' ), ), 'tpl' => array( 'widgetReorderNav' => $widget_reorder_nav_tpl, 'moveWidgetArea' => $move_widget_area_tpl, ), 'selectiveRefreshableWidgets' => $this->get_selective_refreshable_widgets(), ); foreach ( $settings['registeredWidgets'] as &$registered_widget ) { unset( $registered_widget['callback'] ); // May not be JSON-serializable. } $wp_scripts->add_data( 'customize-widgets', 'data', sprintf( 'var _wpCustomizeWidgetsSettings = %s;', wp_json_encode( $settings ) ) ); / * TODO: Update 'wp-customize-widgets' to not rely so much on things in * 'customize-widgets'. This will let us skip most of the above and not * enqueue 'customize-widgets' which saves bytes. / if ( wp_use_widgets_block_editor() ) { $block_editor_context = new WP_Block_Editor_Context( array( 'name' => 'core/customize-widgets', ) ); $editor_settings = get_block_editor_settings( get_legacy_widget_block_editor_settings(), $block_editor_context ); wp_add_inline_script( 'wp-customize-widgets', sprintf( 'wp.domReady( function() { wp.customizeWidgets.initialize( "widgets-customizer", %s ); } );', wp_json_encode( $editor_settings ) ) ); // Preload server-registered block schemas. wp_add_inline_script( 'wp-blocks', 'wp.blocks.unstable__bootstrapServerSideBlockDefinitions(' . wp_json_encode( get_block_editor_server_block_settings() ) . ');' ); // Preload server-registered block bindings sources. $registered_sources = get_all_registered_block_bindings_sources(); if ( ! empty( $registered_sources ) ) { $filtered_sources = array(); foreach ( $registered_sources as $source ) { $filtered_sources[] = array( 'name' => $source->name, 'label' => $source->label, 'usesContext' => $source->uses_context, ); } $script = sprintf( 'for ( const source of %s ) { wp.blocks.registerBlockBindingsSource( source ); }', wp_json_encode( $filtered_sources ) ); wp_add_inline_script( 'wp-blocks', $script ); } wp_add_inline_script( 'wp-blocks', sprintf( 'wp.blocks.setCategories( %s );', wp_json_encode( get_block_categories( $block_editor_context ) ) ), 'after' ); wp_enqueue_script( 'wp-customize-widgets' ); wp_enqueue_style( 'wp-customize-widgets' ); /* This action is documented in edit-form-blocks.php / do_action( 'enqueue_block_editor_assets' ); } } /* * Renders the widget form control templates into the DOM. * * @since 3.9.0 / public function output_widget_control_templates() { ?> <div id="widgets-left"><!-- compatibility with JS which looks for widget templates here --> <div id="available-widgets"> <div class="customize-section-title"> <button class="customize-section-back" tabindex="-1"> <span class="screen-reader-text"> <?php / translators: Hidden accessibility text. / _e( 'Back' ); ?> </span> </button> <h3> <span class="customize-action"> <?php / translators: ▸ is the unicode right-pointing triangle. %s: Section title in the Customizer. / printf( __( 'Customizing ▸ %s' ), esc_html( $this->manager->get_panel( 'widgets' )->title ) ); ?> </span> <?php _e( 'Add a Widget' ); ?> </h3> </div> <div id="available-widgets-filter"> <label for="widgets-search"> <?php / translators: Hidden accessibility text. / _e( 'Search Widgets' ); ?> </label> <input type="text" id="widgets-search" aria-describedby="widgets-search-desc" /> <div class="search-icon" aria-hidden="true"></div> <button type="button" class="clear-results"><span class="screen-reader-text"> <?php / translators: Hidden accessibility text. / _e( 'Clear Results' ); ?> </span></button> <p class="screen-reader-text" id="widgets-search-desc"> <?php / translators: Hidden accessibility text. / _e( 'The search results will be updated as you type.' ); ?> </p> </div> <div id="available-widgets-list"> <?php foreach ( $this->get_available_widgets() as $available_widget ) : ?> <div id="widget-tpl-<?php echo esc_attr( $available_widget['id'] ); ?>" data-widget-id="<?php echo esc_attr( $available_widget['id'] ); ?>" class="widget-tpl <?php echo esc_attr( $available_widget['id'] ); ?>" tabindex="0"> <?php echo $available_widget['control_tpl']; ?> </div> <?php endforeach; ?> <p class="no-widgets-found-message"><?php _e( 'No widgets found.' ); ?></p> </div><!-- #available-widgets-list --> </div><!-- #available-widgets --> </div><!-- #widgets-left --> <?php } /* * Calls admin_print_footer_scripts and admin_print_scripts hooks to * allow custom scripts from plugins. * * @since 3.9.0 / public function print_footer_scripts() { /* This action is documented in wp-admin/admin-footer.php / do_action( 'admin_print_footer_scripts-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores /* This action is documented in wp-admin/admin-footer.php / do_action( 'admin_print_footer_scripts' ); /* This action is documented in wp-admin/admin-footer.php / do_action( 'admin_footer-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores } /* * Retrieves common arguments to supply when constructing a Customizer setting. * * @since 3.9.0 * * @param string $id Widget setting ID. * @param array $overrides Array of setting overrides. * @return array Possibly modified setting arguments. / public function get_setting_args( $id, $overrides = array() ) { $args = array( 'type' => 'option', 'capability' => 'edit_theme_options', 'default' => array(), ); if ( preg_match( $this->setting_id_patterns['sidebar_widgets'], $id, $matches ) ) { $args['sanitize_callback'] = array( $this, 'sanitize_sidebar_widgets' ); $args['sanitize_js_callback'] = array( $this, 'sanitize_sidebar_widgets_js_instance' ); $args['transport'] = current_theme_supports( 'customize-selective-refresh-widgets' ) ? 'postMessage' : 'refresh'; } elseif ( preg_match( $this->setting_id_patterns['widget_instance'], $id, $matches ) ) { $id_base = $matches['id_base']; $args['sanitize_callback'] = function ( $value ) use ( $id_base ) { return $this->sanitize_widget_instance( $value, $id_base ); }; $args['sanitize_js_callback'] = function ( $value ) use ( $id_base ) { return $this->sanitize_widget_js_instance( $value, $id_base ); }; $args['transport'] = $this->is_widget_selective_refreshable( $matches['id_base'] ) ? 'postMessage' : 'refresh'; } $args = array_merge( $args, $overrides ); /* * Filters the common arguments supplied when constructing a Customizer setting. * * @since 3.9.0 * * @see WP_Customize_Setting * * @param array $args Array of Customizer setting arguments. * @param string $id Widget setting ID. / return apply_filters( 'widget_customizer_setting_args', $args, $id ); } /* * Ensures sidebar widget arrays only ever contain widget IDS. * * Used as the 'sanitize_callback' for each $sidebars_widgets setting. * * @since 3.9.0 * * @param string[] $widget_ids Array of widget IDs. * @return string[] Array of sanitized widget IDs. / public function sanitize_sidebar_widgets( $widget_ids ) { $widget_ids = array_map( 'strval', (array) $widget_ids ); $sanitized_widget_ids = array(); foreach ( $widget_ids as $widget_id ) { $sanitized_widget_ids[] = preg_replace( '/[^a-z0-9_\-]/', '', $widget_id ); } return $sanitized_widget_ids; } /* * Builds up an index of all available widgets for use in Backbone models. * * @since 3.9.0 * * @global array $wp_registered_widgets * @global array $wp_registered_widget_controls * * @see wp_list_widgets() * * @return array List of available widgets. / public function get_available_widgets() { static $available_widgets = array(); if ( ! empty( $available_widgets ) ) { return $available_widgets; } global $wp_registered_widgets, $wp_registered_widget_controls; require_once ABSPATH . 'wp-admin/includes/widgets.php'; // For next_widget_id_number(). $sort = $wp_registered_widgets; usort( $sort, array( $this, '_sort_name_callback' ) ); $done = array(); foreach ( $sort as $widget ) { if ( in_array( $widget['callback'], $done, true ) ) { // We already showed this multi-widget. continue; } $sidebar = is_active_widget( $widget['callback'], $widget['id'], false, false ); $done[] = $widget['callback']; if ( ! isset( $widget['params'][0] ) ) { $widget['params'][0] = array(); } $available_widget = $widget; unset( $available_widget['callback'] ); // Not serializable to JSON. $args = array( 'widget_id' => $widget['id'], 'widget_name' => $widget['name'], '_display' => 'template', ); $is_disabled = false; $is_multi_widget = ( isset( $wp_registered_widget_controls[ $widget['id'] ]['id_base'] ) && isset( $widget['params'][0]['number'] ) ); if ( $is_multi_widget ) { $id_base = $wp_registered_widget_controls[ $widget['id'] ]['id_base']; $args['_temp_id'] = "$id_base-__i__"; $args['_multi_num'] = next_widget_id_number( $id_base ); $args['_add'] = 'multi'; } else { $args['_add'] = 'single'; if ( $sidebar && 'wp_inactive_widgets' !== $sidebar ) { $is_disabled = true; } $id_base = $widget['id']; } $list_widget_controls_args = wp_list_widget_controls_dynamic_sidebar( array( 0 => $args, 1 => $widget['params'][0], ) ); $control_tpl = $this->get_widget_control( $list_widget_controls_args ); // The properties here are mapped to the Backbone Widget model. $available_widget = array_merge( $available_widget, array( 'temp_id' => isset( $args['_temp_id'] ) ? $args['_temp_id'] : null, 'is_multi' => $is_multi_widget, 'control_tpl' => $control_tpl, 'multi_number' => ( 'multi' === $args['_add'] ) ? $args['_multi_num'] : false, 'is_disabled' => $is_disabled, 'id_base' => $id_base, 'transport' => $this->is_widget_selective_refreshable( $id_base ) ? 'postMessage' : 'refresh', 'width' => $wp_registered_widget_controls[ $widget['id'] ]['width'], 'height' => $wp_registered_widget_controls[ $widget['id'] ]['height'], 'is_wide' => $this->is_wide_widget( $widget['id'] ), ) ); $available_widgets[] = $available_widget; } return $available_widgets; } /* * Naturally orders available widgets by name. * * @since 3.9.0 * * @param array $widget_a The first widget to compare. * @param array $widget_b The second widget to compare. * @return int Reorder position for the current widget comparison. / protected function _sort_name_callback( $widget_a, $widget_b ) { return strnatcasecmp( $widget_a['name'], $widget_b['name'] ); } /* * Retrieves the widget control markup. * * @since 3.9.0 * * @param array $args Widget control arguments. * @return string Widget control form HTML markup. / public function get_widget_control( $args ) { $args[0]['before_form'] = '<div class="form">'; $args[0]['after_form'] = '</div><!-- .form -->'; $args[0]['before_widget_content'] = '<div class="widget-content">'; $args[0]['after_widget_content'] = '</div><!-- .widget-content -->'; ob_start(); wp_widget_control( ...$args ); $control_tpl = ob_get_clean(); return $control_tpl; } /* * Retrieves the widget control markup parts. * * @since 4.4.0 * * @param array $args Widget control arguments. * @return array { * @type string $control Markup for widget control wrapping form. * @type string $content The contents of the widget form itself. * } / public function get_widget_control_parts( $args ) { $args[0]['before_widget_content'] = '<div class="widget-content">'; $args[0]['after_widget_content'] = '</div><!-- .widget-content -->'; $control_markup = $this->get_widget_control( $args ); $content_start_pos = strpos( $control_markup, $args[0]['before_widget_content'] ); $content_end_pos = strrpos( $control_markup, $args[0]['after_widget_content'] ); $control = substr( $control_markup, 0, $content_start_pos + strlen( $args[0]['before_widget_content'] ) ); $control .= substr( $control_markup, $content_end_pos ); $content = trim( substr( $control_markup, $content_start_pos + strlen( $args[0]['before_widget_content'] ), $content_end_pos - $content_start_pos - strlen( $args[0]['before_widget_content'] ) ) ); return compact( 'control', 'content' ); } /* * Adds hooks for the Customizer preview. * * @since 3.9.0 / public function customize_preview_init() { add_action( 'wp_enqueue_scripts', array( $this, 'customize_preview_enqueue' ) ); add_action( 'wp_print_styles', array( $this, 'print_preview_css' ), 1 ); add_action( 'wp_footer', array( $this, 'export_preview_data' ), 20 ); } /* * Refreshes the nonce for widget updates. * * @since 4.2.0 * * @param array $nonces Array of nonces. * @return array Array of nonces. / public function refresh_nonces( $nonces ) { $nonces['update-widget'] = wp_create_nonce( 'update-widget' ); return $nonces; } /* * Tells the script loader to load the scripts and styles of custom blocks * if the widgets block editor is enabled. * * @since 5.8.0 * * @param bool $is_block_editor_screen Current decision about loading block assets. * @return bool Filtered decision about loading block assets. / public function should_load_block_editor_scripts_and_styles( $is_block_editor_screen ) { if ( wp_use_widgets_block_editor() ) { return true; } return $is_block_editor_screen; } /* * When previewing, ensures the proper previewing widgets are used. * * Because wp_get_sidebars_widgets() gets called early at {@see 'init' } (via * wp_convert_widget_settings()) and can set global variable `$_wp_sidebars_widgets` * to the value of `get_option( 'sidebars_widgets' )` before the Customizer preview * filter is added, it has to be reset after the filter has been added. * * @since 3.9.0 * * @param array $sidebars_widgets List of widgets for the current sidebar. * @return array / public function preview_sidebars_widgets( $sidebars_widgets ) { $sidebars_widgets = get_option( 'sidebars_widgets', array() ); unset( $sidebars_widgets['array_version'] ); return $sidebars_widgets; } /* * Enqueues scripts for the Customizer preview. * * @since 3.9.0 / public function customize_preview_enqueue() { wp_enqueue_script( 'customize-preview-widgets' ); } /* * Inserts default style for highlighted widget at early point so theme * stylesheet can override. * * @since 3.9.0 / public function print_preview_css() { ?> <style> .widget-customizer-highlighted-widget { outline: none; -webkit-box-shadow: 0 0 2px rgba(30, 140, 190, 0.8); box-shadow: 0 0 2px rgba(30, 140, 190, 0.8); position: relative; z-index: 1; } </style> <?php } /* * Communicates the sidebars that appeared on the page at the very end of the page, * and at the very end of the wp_footer, * * @since 3.9.0 * * @global array $wp_registered_sidebars * @global array $wp_registered_widgets / public function export_preview_data() { global $wp_registered_sidebars, $wp_registered_widgets; $switched_locale = switch_to_user_locale( get_current_user_id() ); $l10n = array( 'widgetTooltip' => __( 'Shift-click to edit this widget.' ), ); if ( $switched_locale ) { restore_previous_locale(); } $rendered_sidebars = array_filter( $this->rendered_sidebars ); $rendered_widgets = array_filter( $this->rendered_widgets ); // Prepare Customizer settings to pass to JavaScript. $settings = array( 'renderedSidebars' => array_fill_keys( array_keys( $rendered_sidebars ), true ), 'renderedWidgets' => array_fill_keys( array_keys( $rendered_widgets ), true ), 'registeredSidebars' => array_values( $wp_registered_sidebars ), 'registeredWidgets' => $wp_registered_widgets, 'l10n' => $l10n, 'selectiveRefreshableWidgets' => $this->get_selective_refreshable_widgets(), ); foreach ( $settings['registeredWidgets'] as &$registered_widget ) { unset( $registered_widget['callback'] ); // May not be JSON-serializable. } wp_print_inline_script_tag( sprintf( 'var _wpWidgetCustomizerPreviewSettings = %s;', wp_json_encode( $settings ) ) ); } /* * Tracks the widgets that were rendered. * * @since 3.9.0 * * @param array $widget Rendered widget to tally. / public function tally_rendered_widgets( $widget ) { $this->rendered_widgets[ $widget['id'] ] = true; } /* * Determine if a widget is rendered on the page. * * @since 4.0.0 * * @param string $widget_id Widget ID to check. * @return bool Whether the widget is rendered. / public function is_widget_rendered( $widget_id ) { return ! empty( $this->rendered_widgets[ $widget_id ] ); } /* * Determines if a sidebar is rendered on the page. * * @since 4.0.0 * * @param string $sidebar_id Sidebar ID to check. * @return bool Whether the sidebar is rendered. / public function is_sidebar_rendered( $sidebar_id ) { return ! empty( $this->rendered_sidebars[ $sidebar_id ] ); } /* * Tallies the sidebars rendered via is_active_sidebar(). * * Keep track of the times that is_active_sidebar() is called in the template, * and assume that this means that the sidebar would be rendered on the template * if there were widgets populating it. * * @since 3.9.0 * * @param bool $is_active Whether the sidebar is active. * @param string $sidebar_id Sidebar ID. * @return bool Whether the sidebar is active. / public function tally_sidebars_via_is_active_sidebar_calls( $is_active, $sidebar_id ) { if ( is_registered_sidebar( $sidebar_id ) ) { $this->rendered_sidebars[ $sidebar_id ] = true; } / * We may need to force this to true, and also force-true the value * for 'dynamic_sidebar_has_widgets' if we want to ensure that there * is an area to drop widgets into, if the sidebar is empty. / return $is_active; } /* * Tallies the sidebars rendered via dynamic_sidebar(). * * Keep track of the times that dynamic_sidebar() is called in the template, * and assume this means the sidebar would be rendered on the template if * there were widgets populating it. * * @since 3.9.0 * * @param bool $has_widgets Whether the current sidebar has widgets. * @param string $sidebar_id Sidebar ID. * @return bool Whether the current sidebar has widgets. / public function tally_sidebars_via_dynamic_sidebar_calls( $has_widgets, $sidebar_id ) { if ( is_registered_sidebar( $sidebar_id ) ) { $this->rendered_sidebars[ $sidebar_id ] = true; } / * We may need to force this to true, and also force-true the value * for 'is_active_sidebar' if we want to ensure there is an area to * drop widgets into, if the sidebar is empty. / return $has_widgets; } /* * Retrieves MAC for a serialized widget instance string. * * Allows values posted back from JS to be rejected if any tampering of the * data has occurred. * * @since 3.9.0 * * @param string $serialized_instance Widget instance. * @return string MAC for serialized widget instance. / protected function get_instance_hash_key( $serialized_instance ) { return wp_hash( $serialized_instance ); } /* * Sanitizes a widget instance. * * Unserialize the JS-instance for storing in the options. It's important that this filter * only get applied to an instance once. * * @since 3.9.0 * @since 5.8.0 Added the `$id_base` parameter. * * @global WP_Widget_Factory $wp_widget_factory * * @param array $value Widget instance to sanitize. * @param string $id_base Optional. Base of the ID of the widget being sanitized. Default null. * @return array\|void Sanitized widget instance. / public function sanitize_widget_instance( $value, $id_base = null ) { global $wp_widget_factory; if ( array() === $value ) { return $value; } if ( isset( $value['raw_instance'] ) && $id_base && wp_use_widgets_block_editor() ) { $widget_object = $wp_widget_factory->get_widget_object( $id_base ); if ( ! empty( $widget_object->widget_options['show_instance_in_rest'] ) ) { if ( 'block' === $id_base && ! current_user_can( 'unfiltered_html' ) ) { / * The content of the 'block' widget is not filtered on the fly while editing. * Filter the content here to prevent vulnerabilities. / $value['raw_instance']['content'] = wp_kses_post( $value['raw_instance']['content'] ); } return $value['raw_instance']; } } if ( empty( $value['is_widget_customizer_js_value'] ) \|\| empty( $value['instance_hash_key'] ) \|\| empty( $value['encoded_serialized_instance'] ) ) { return; } $decoded = base64_decode( $value['encoded_serialized_instance'], true ); if ( false === $decoded ) { return; } if ( ! hash_equals( $this->get_instance_hash_key( $decoded ), $value['instance_hash_key'] ) ) { return; } $instance = unserialize( $decoded ); if ( false === $instance ) { return; } return $instance; } /* * Converts a widget instance into JSON-representable format. * * @since 3.9.0 * @since 5.8.0 Added the `$id_base` parameter. * * @global WP_Widget_Factory $wp_widget_factory * * @param array $value Widget instance to convert to JSON. * @param string $id_base Optional. Base of the ID of the widget being sanitized. Default null. * @return array JSON-converted widget instance. / public function sanitize_widget_js_instance( $value, $id_base = null ) { global $wp_widget_factory; if ( empty( $value['is_widget_customizer_js_value'] ) ) { $serialized = serialize( $value ); $js_value = array( 'encoded_serialized_instance' => base64_encode( $serialized ), 'title' => empty( $value['title'] ) ? '' : $value['title'], 'is_widget_customizer_js_value' => true, 'instance_hash_key' => $this->get_instance_hash_key( $serialized ), ); if ( $id_base && wp_use_widgets_block_editor() ) { $widget_object = $wp_widget_factory->get_widget_object( $id_base ); if ( ! empty( $widget_object->widget_options['show_instance_in_rest'] ) ) { $js_value['raw_instance'] = (object) $value; } } return $js_value; } return $value; } /* * Strips out widget IDs for widgets which are no longer registered. * * One example where this might happen is when a plugin orphans a widget * in a sidebar upon deactivation. * * @since 3.9.0 * * @global array $wp_registered_widgets * * @param array $widget_ids List of widget IDs. * @return array Parsed list of widget IDs. / public function sanitize_sidebar_widgets_js_instance( $widget_ids ) { global $wp_registered_widgets; $widget_ids = array_values( array_intersect( $widget_ids, array_keys( $wp_registered_widgets ) ) ); return $widget_ids; } /* * Finds and invokes the widget update and control callbacks. * * Requires that `$_POST` be populated with the instance data. * * @since 3.9.0 * * @global array $wp_registered_widget_updates * @global array $wp_registered_widget_controls * * @param string $widget_id Widget ID. * @return array\|WP_Error Array containing the updated widget information. * A WP_Error object, otherwise. / public function call_widget_update( $widget_id ) { global $wp_registered_widget_updates, $wp_registered_widget_controls; $setting_id = $this->get_setting_id( $widget_id ); / * Make sure that other setting changes have previewed since this widget * may depend on them (e.g. Menus being present for Navigation Menu widget). / if ( ! did_action( 'customize_preview_init' ) ) { foreach ( $this->manager->settings() as $setting ) { if ( $setting->id !== $setting_id ) { $setting->preview(); } } } $this->start_capturing_option_updates(); $parsed_id = $this->parse_widget_id( $widget_id ); $option_name = 'widget_' . $parsed_id['id_base']; / * If a previously-sanitized instance is provided, populate the input vars * with its values so that the widget update callback will read this instance / $added_input_vars = array(); if ( ! empty( $_POST['sanitized_widget_setting'] ) ) { $sanitized_widget_setting = json_decode( $this->get_post_value( 'sanitized_widget_setting' ), true ); if ( false === $sanitized_widget_setting ) { $this->stop_capturing_option_updates(); return new WP_Error( 'widget_setting_malformed' ); } $instance = $this->sanitize_widget_instance( $sanitized_widget_setting, $parsed_id['id_base'] ); if ( is_null( $instance ) ) { $this->stop_capturing_option_updates(); return new WP_Error( 'widget_setting_unsanitized' ); } if ( ! is_null( $parsed_id['number'] ) ) { $value = array(); $value[ $parsed_id['number'] ] = $instance; $key = 'widget-' . $parsed_id['id_base']; $_REQUEST[ $key ] = wp_slash( $value ); $_POST[ $key ] = $_REQUEST[ $key ]; $added_input_vars[] = $key; } else { foreach ( $instance as $key => $value ) { $_REQUEST[ $key ] = wp_slash( $value ); $_POST[ $key ] = $_REQUEST[ $key ]; $added_input_vars[] = $key; } } } // Invoke the widget update callback. foreach ( (array) $wp_registered_widget_updates as $name => $control ) { if ( $name === $parsed_id['id_base'] && is_callable( $control['callback'] ) ) { ob_start(); call_user_func_array( $control['callback'], $control['params'] ); ob_end_clean(); break; } } // Clean up any input vars that were manually added. foreach ( $added_input_vars as $key ) { unset( $_POST[ $key ] ); unset( $_REQUEST[ $key ] ); } // Make sure the expected option was updated. if ( 0 !== $this->count_captured_options() ) { if ( $this->count_captured_options() > 1 ) { $this->stop_capturing_option_updates(); return new WP_Error( 'widget_setting_too_many_options' ); } $updated_option_name = key( $this->get_captured_options() ); if ( $updated_option_name !== $option_name ) { $this->stop_capturing_option_updates(); return new WP_Error( 'widget_setting_unexpected_option' ); } } // Obtain the widget instance. $option = $this->get_captured_option( $option_name ); if ( null !== $parsed_id['number'] ) { $instance = $option[ $parsed_id['number'] ]; } else { $instance = $option; } / * Override the incoming $_POST['customized'] for a newly-created widget's * setting with the new $instance so that the preview filter currently * in place from WP_Customize_Setting::preview() will use this value * instead of the default widget instance value (an empty array). / $this->manager->set_post_value( $setting_id, $this->sanitize_widget_js_instance( $instance, $parsed_id['id_base'] ) ); // Obtain the widget control with the updated instance in place. ob_start(); $form = $wp_registered_widget_controls[ $widget_id ]; if ( $form ) { call_user_func_array( $form['callback'], $form['params'] ); } $form = ob_get_clean(); $this->stop_capturing_option_updates(); return compact( 'instance', 'form' ); } /* * Updates widget settings asynchronously. * * Allows the Customizer to update a widget using its form, but return the new * instance info via Ajax instead of saving it to the options table. * * Most code here copied from wp_ajax_save_widget(). * * @since 3.9.0 * * @see wp_ajax_save_widget() / public function wp_ajax_update_widget() { if ( ! is_user_logged_in() ) { wp_die( 0 ); } check_ajax_referer( 'update-widget', 'nonce' ); if ( ! current_user_can( 'edit_theme_options' ) ) { wp_die( -1 ); } if ( empty( $_POST['widget-id'] ) ) { wp_send_json_error( 'missing_widget-id' ); } /* This action is documented in wp-admin/includes/ajax-actions.php / do_action( 'load-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores /* This action is documented in wp-admin/includes/ajax-actions.php / do_action( 'widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores /* This action is documented in wp-admin/widgets.php / do_action( 'sidebar_admin_setup' ); $widget_id = $this->get_post_value( 'widget-id' ); $parsed_id = $this->parse_widget_id( $widget_id ); $id_base = $parsed_id['id_base']; $is_updating_widget_template = ( isset( $_POST[ 'widget-' . $id_base ] ) && is_array( $_POST[ 'widget-' . $id_base ] ) && preg_match( '/__i__\|%i%/', key( $_POST[ 'widget-' . $id_base ] ) ) ); if ( $is_updating_widget_template ) { wp_send_json_error( 'template_widget_not_updatable' ); } $updated_widget = $this->call_widget_update( $widget_id ); // => {instance,form} if ( is_wp_error( $updated_widget ) ) { wp_send_json_error( $updated_widget->get_error_code() ); } $form = $updated_widget['form']; $instance = $this->sanitize_widget_js_instance( $updated_widget['instance'], $id_base ); wp_send_json_success( compact( 'form', 'instance' ) ); } / * Selective Refresh Methods / /* * Filters arguments for dynamic widget partials. * * @since 4.5.0 * * @param array\|false $partial_args Partial arguments. * @param string $partial_id Partial ID. * @return array (Maybe) modified partial arguments. / public function customize_dynamic_partial_args( $partial_args, $partial_id ) { if ( ! current_theme_supports( 'customize-selective-refresh-widgets' ) ) { return $partial_args; } if ( preg_match( '/^widget\[(?P<widget_id>.+)\]$/', $partial_id, $matches ) ) { if ( false === $partial_args ) { $partial_args = array(); } $partial_args = array_merge( $partial_args, array( 'type' => 'widget', 'render_callback' => array( $this, 'render_widget_partial' ), 'container_inclusive' => true, 'settings' => array( $this->get_setting_id( $matches['widget_id'] ) ), 'capability' => 'edit_theme_options', ) ); } return $partial_args; } /* * Adds hooks for selective refresh. * * @since 4.5.0 / public function selective_refresh_init() { if ( ! current_theme_supports( 'customize-selective-refresh-widgets' ) ) { return; } add_filter( 'dynamic_sidebar_params', array( $this, 'filter_dynamic_sidebar_params' ) ); add_filter( 'wp_kses_allowed_html', array( $this, 'filter_wp_kses_allowed_data_attributes' ) ); add_action( 'dynamic_sidebar_before', array( $this, 'start_dynamic_sidebar' ) ); add_action( 'dynamic_sidebar_after', array( $this, 'end_dynamic_sidebar' ) ); } /* * Inject selective refresh data attributes into widget container elements. * * @since 4.5.0 * * @param array $params { * Dynamic sidebar params. * * @type array $args Sidebar args. * @type array $widget_args Widget args. * } * @see WP_Customize_Nav_Menus::filter_wp_nav_menu_args() * * @return array Params. / public function filter_dynamic_sidebar_params( $params ) { $sidebar_args = array_merge( array( 'before_widget' => '', 'after_widget' => '', ), $params[0] ); // Skip widgets not in a registered sidebar or ones which lack a proper wrapper element to attach the data- attributes to. $matches = array(); $is_valid = ( isset( $sidebar_args['id'] ) && is_registered_sidebar( $sidebar_args['id'] ) && ( isset( $this->current_dynamic_sidebar_id_stack[0] ) && $this->current_dynamic_sidebar_id_stack[0] === $sidebar_args['id'] ) && preg_match( '#^<(?P<tag_name>\w+)#', $sidebar_args['before_widget'], $matches ) ); if ( ! $is_valid ) { return $params; } $this->before_widget_tags_seen[ $matches['tag_name'] ] = true; $context = array( 'sidebar_id' => $sidebar_args['id'], ); if ( isset( $this->context_sidebar_instance_number ) ) { $context['sidebar_instance_number'] = $this->context_sidebar_instance_number; } elseif ( isset( $sidebar_args['id'] ) && isset( $this->sidebar_instance_count[ $sidebar_args['id'] ] ) ) { $context['sidebar_instance_number'] = $this->sidebar_instance_count[ $sidebar_args['id'] ]; } $attributes = sprintf( ' data-customize-partial-id="%s"', esc_attr( 'widget[' . $sidebar_args['widget_id'] . ']' ) ); $attributes .= ' data-customize-partial-type="widget"'; $attributes .= sprintf( ' data-customize-partial-placement-context="%s"', esc_attr( wp_json_encode( $context ) ) ); $attributes .= sprintf( ' data-customize-widget-id="%s"', esc_attr( $sidebar_args['widget_id'] ) ); $sidebar_args['before_widget'] = preg_replace( '#^(<\w+)#', '$1 ' . $attributes, $sidebar_args['before_widget'] ); $params[0] = $sidebar_args; return $params; } /** * List of the tag names seen for before_widget strings. * * This is used in the {@see 'filter_wp_kses_allowed_html'} filter to ensure that the * data-* attributes can be allowed. * * @since 4.5.0 * @var array / protected $before_widget_tags_seen = array(); /* * Ensures the HTML data-* attributes for selective refresh are allowed by kses. * * This is needed in case the `$before_widget` is run through wp_kses() when printed. * * @since 4.5.0 * * @param array $allowed_html Allowed HTML. * @return array (Maybe) modified allowed HTML. / public function filter_wp_kses_allowed_data_attributes( $allowed_html ) { foreach ( array_keys( $this->before_widget_tags_seen ) as $tag_name ) { if ( ! isset( $allowed_html[ $tag_name ] ) ) { $allowed_html[ $tag_name ] = array(); } $allowed_html[ $tag_name ] = array_merge( $allowed_html[ $tag_name ], array_fill_keys( array( 'data-customize-partial-id', 'data-customize-partial-type', 'data-customize-partial-placement-context', 'data-customize-partial-widget-id', 'data-customize-partial-options', ), true ) ); } return $allowed_html; } /* * Keep track of the number of times that dynamic_sidebar() was called for a given sidebar index. * * This helps facilitate the uncommon scenario where a single sidebar is rendered multiple times on a template. * * @since 4.5.0 * @var array / protected $sidebar_instance_count = array(); /* * The current request's sidebar_instance_number context. * * @since 4.5.0 * @var int\|null / protected $context_sidebar_instance_number; /* * Current sidebar ID being rendered. * * @since 4.5.0 * @var array / protected $current_dynamic_sidebar_id_stack = array(); /* * Begins keeping track of the current sidebar being rendered. * * Insert marker before widgets are rendered in a dynamic sidebar. * * @since 4.5.0 * * @param int\|string $index Index, name, or ID of the dynamic sidebar. / public function start_dynamic_sidebar( $index ) { array_unshift( $this->current_dynamic_sidebar_id_stack, $index ); if ( ! isset( $this->sidebar_instance_count[ $index ] ) ) { $this->sidebar_instance_count[ $index ] = 0; } $this->sidebar_instance_count[ $index ] += 1; if ( ! $this->manager->selective_refresh->is_render_partials_request() ) { printf( "\n<!--dynamic_sidebar_before:%s:%d-->\n", esc_html( $index ), (int) $this->sidebar_instance_count[ $index ] ); } } /* * Finishes keeping track of the current sidebar being rendered. * * Inserts a marker after widgets are rendered in a dynamic sidebar. * * @since 4.5.0 * * @param int\|string $index Index, name, or ID of the dynamic sidebar. / public function end_dynamic_sidebar( $index ) { array_shift( $this->current_dynamic_sidebar_id_stack ); if ( ! $this->manager->selective_refresh->is_render_partials_request() ) { printf( "\n<!--dynamic_sidebar_after:%s:%d-->\n", esc_html( $index ), (int) $this->sidebar_instance_count[ $index ] ); } } /* * Current sidebar being rendered. * * @since 4.5.0 * @var string\|null / protected $rendering_widget_id; /* * Current widget being rendered. * * @since 4.5.0 * @var string\|null / protected $rendering_sidebar_id; /* * Filters sidebars_widgets to ensure the currently-rendered widget is the only widget in the current sidebar. * * @since 4.5.0 * * @param array $sidebars_widgets Sidebars widgets. * @return array Filtered sidebars widgets. / public function filter_sidebars_widgets_for_rendering_widget( $sidebars_widgets ) { $sidebars_widgets[ $this->rendering_sidebar_id ] = array( $this->rendering_widget_id ); return $sidebars_widgets; } /* * Renders a specific widget using the supplied sidebar arguments. * * @since 4.5.0 * * @see dynamic_sidebar() * * @param WP_Customize_Partial $partial Partial. * @param array $context { * Sidebar args supplied as container context. * * @type string $sidebar_id ID for sidebar for widget to render into. * @type int $sidebar_instance_number Disambiguating instance number. * } * @return string\|false / public function render_widget_partial( $partial, $context ) { $id_data = $partial->id_data(); $widget_id = array_shift( $id_data['keys'] ); if ( ! is_array( $context ) \|\| empty( $context['sidebar_id'] ) \|\| ! is_registered_sidebar( $context['sidebar_id'] ) ) { return false; } $this->rendering_sidebar_id = $context['sidebar_id']; if ( isset( $context['sidebar_instance_number'] ) ) { $this->context_sidebar_instance_number = (int) $context['sidebar_instance_number']; } // Filter sidebars_widgets so that only the queried widget is in the sidebar. $this->rendering_widget_id = $widget_id; $filter_callback = array( $this, 'filter_sidebars_widgets_for_rendering_widget' ); add_filter( 'sidebars_widgets', $filter_callback, 1000 ); // Render the widget. ob_start(); $this->rendering_sidebar_id = $context['sidebar_id']; dynamic_sidebar( $this->rendering_sidebar_id ); $container = ob_get_clean(); // Reset variables for next partial render. remove_filter( 'sidebars_widgets', $filter_callback, 1000 ); $this->context_sidebar_instance_number = null; $this->rendering_sidebar_id = null; $this->rendering_widget_id = null; return $container; } // // Option Update Capturing. // /* * List of captured widget option updates. * * @since 3.9.0 * @var array $_captured_options Values updated while option capture is happening. / protected $_captured_options = array(); /* * Whether option capture is currently happening. * * @since 3.9.0 * @var bool $_is_current Whether option capture is currently happening or not. / protected $_is_capturing_option_updates = false; /* * Determines whether the captured option update should be ignored. * * @since 3.9.0 * * @param string $option_name Option name. * @return bool Whether the option capture is ignored. / protected function is_option_capture_ignored( $option_name ) { return ( str_starts_with( $option_name, '_transient_' ) ); } /* * Retrieves captured widget option updates. * * @since 3.9.0 * * @return array Array of captured options. / protected function get_captured_options() { return $this->_captured_options; } /* * Retrieves the option that was captured from being saved. * * @since 4.2.0 * * @param string $option_name Option name. * @param mixed $default_value Optional. Default value to return if the option does not exist. Default false. * @return mixed Value set for the option. / protected function get_captured_option( $option_name, $default_value = false ) { if ( array_key_exists( $option_name, $this->_captured_options ) ) { $value = $this->_captured_options[ $option_name ]; } else { $value = $default_value; } return $value; } /* * Retrieves the number of captured widget option updates. * * @since 3.9.0 * * @return int Number of updated options. / protected function count_captured_options() { return count( $this->_captured_options ); } /* * Begins keeping track of changes to widget options, caching new values. * * @since 3.9.0 / protected function start_capturing_option_updates() { if ( $this->_is_capturing_option_updates ) { return; } $this->_is_capturing_option_updates = true; add_filter( 'pre_update_option', array( $this, 'capture_filter_pre_update_option' ), 10, 3 ); } /* * Pre-filters captured option values before updating. * * @since 3.9.0 * * @param mixed $new_value The new option value. * @param string $option_name Name of the option. * @param mixed $old_value The old option value. * @return mixed Filtered option value. / public function capture_filter_pre_update_option( $new_value, $option_name, $old_value ) { if ( $this->is_option_capture_ignored( $option_name ) ) { return $new_value; } if ( ! isset( $this->_captured_options[ $option_name ] ) ) { add_filter( "pre_option_{$option_name}", array( $this, 'capture_filter_pre_get_option' ) ); } $this->_captured_options[ $option_name ] = $new_value; return $old_value; } /* * Pre-filters captured option values before retrieving. * * @since 3.9.0 * * @param mixed $value Value to return instead of the option value. * @return mixed Filtered option value. / public function capture_filter_pre_get_option( $value ) { $option_name = preg_replace( '/^pre_option_/', '', current_filter() ); if ( isset( $this->_captured_options[ $option_name ] ) ) { $value = $this->_captured_options[ $option_name ]; /* This filter is documented in wp-includes/option.php / $value = apply_filters( 'option_' . $option_name, $value, $option_name ); } return $value; } /* * Undoes any changes to the options since options capture began. * * @since 3.9.0 / protected function stop_capturing_option_updates() { if ( ! $this->_is_capturing_option_updates ) { return; } remove_filter( 'pre_update_option', array( $this, 'capture_filter_pre_update_option' ), 10 ); foreach ( array_keys( $this->_captured_options ) as $option_name ) { remove_filter( "pre_option_{$option_name}", array( $this, 'capture_filter_pre_get_option' ) ); } $this->_captured_options = array(); $this->_is_capturing_option_updates = false; } /* * {@internal Missing Summary} * * See the {@see 'customize_dynamic_setting_args'} filter. * * @since 3.9.0 * @deprecated 4.2.0 Deprecated in favor of the {@see 'customize_dynamic_setting_args'} filter. / public function setup_widget_addition_previews() { _deprecated_function( __METHOD__, '4.2.0', 'customize_dynamic_setting_args' ); } /* * {@internal Missing Summary} * * See the {@see 'customize_dynamic_setting_args'} filter. * * @since 3.9.0 * @deprecated 4.2.0 Deprecated in favor of the {@see 'customize_dynamic_setting_args'} filter. / public function prepreview_added_sidebars_widgets() { _deprecated_function( __METHOD__, '4.2.0', 'customize_dynamic_setting_args' ); } /* * {@internal Missing Summary} * * See the {@see 'customize_dynamic_setting_args'} filter. * * @since 3.9.0 * @deprecated 4.2.0 Deprecated in favor of the {@see 'customize_dynamic_setting_args'} filter. / public function prepreview_added_widget_instance() { _deprecated_function( __METHOD__, '4.2.0', 'customize_dynamic_setting_args' ); } /* * {@internal Missing Summary} * * See the {@see 'customize_dynamic_setting_args'} filter. * * @since 3.9.0 * @deprecated 4.2.0 Deprecated in favor of the {@see 'customize_dynamic_setting_args'} filter. */ public function remove_prepreview_filters() { _deprecated_function( __METHOD__, '4.2.0', 'customize_dynamic_setting_args' ); } } Back

Edit File : class-wp-customize-widgets.php | Size : 70.52 KB

<?php
/**
 * WordPress Customize Widgets classes
 *
 * @package WordPress
 * @subpackage Customize
 * @since 3.9.0
 */

/**
 * Customize Widgets class.
 *
 * Implements widget management in the Customizer.
 *
 * @since 3.9.0
 *
 * @see WP_Customize_Manager
 */
#[AllowDynamicProperties]
final class WP_Customize_Widgets {

/**
	 * WP_Customize_Manager instance.
	 *
	 * @since 3.9.0
	 * @var WP_Customize_Manager
	 */
	public $manager;

/**
	 * All id_bases for widgets defined in core.
	 *
	 * @since 3.9.0
	 * @var array
	 */
	protected $core_widget_id_bases = array(
		'archives',
		'calendar',
		'categories',
		'custom_html',
		'links',
		'media_audio',
		'media_image',
		'media_video',
		'meta',
		'nav_menu',
		'pages',
		'recent-comments',
		'recent-posts',
		'rss',
		'search',
		'tag_cloud',
		'text',
	);

/**
	 * @since 3.9.0
	 * @var array
	 */
	protected $rendered_sidebars = array();

/**
	 * @since 3.9.0
	 * @var array
	 */
	protected $rendered_widgets = array();

/**
	 * @since 3.9.0
	 * @var array
	 */
	protected $old_sidebars_widgets = array();

/**
	 * Mapping of widget ID base to whether it supports selective refresh.
	 *
	 * @since 4.5.0
	 * @var array
	 */
	protected $selective_refreshable_widgets;

/**
	 * Mapping of setting type to setting ID pattern.
	 *
	 * @since 4.2.0
	 * @var array
	 */
	protected $setting_id_patterns = array(
		'widget_instance' => '/^widget_(?P<id_base>.+?)(?:\[(?P<widget_number>\d+)\])?$/',
		'sidebar_widgets' => '/^sidebars_widgets\[(?P<sidebar_id>.+?)\]$/',
	);

/**
	 * Initial loader.
	 *
	 * @since 3.9.0
	 *
	 * @param WP_Customize_Manager $manager Customizer bootstrap instance.
	 */
	public function __construct( $manager ) {
		$this->manager = $manager;

// See https://github.com/xwp/wp-customize-snapshots/blob/962586659688a5b1fd9ae93618b7ce2d4e7a421c/php/class-customize-snapshot-manager.php#L420-L449
		add_filter( 'customize_dynamic_setting_args', array( $this, 'filter_customize_dynamic_setting_args' ), 10, 2 );
		add_action( 'widgets_init', array( $this, 'register_settings' ), 95 );
		add_action( 'customize_register', array( $this, 'schedule_customize_register' ), 1 );

// Skip remaining hooks when the user can't manage widgets anyway.
		if ( ! current_user_can( 'edit_theme_options' ) ) {
			return;
		}

add_action( 'wp_loaded', array( $this, 'override_sidebars_widgets_for_theme_switch' ) );
		add_action( 'customize_controls_init', array( $this, 'customize_controls_init' ) );
		add_action( 'customize_controls_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
		add_action( 'customize_controls_print_styles', array( $this, 'print_styles' ) );
		add_action( 'customize_controls_print_scripts', array( $this, 'print_scripts' ) );
		add_action( 'customize_controls_print_footer_scripts', array( $this, 'print_footer_scripts' ) );
		add_action( 'customize_controls_print_footer_scripts', array( $this, 'output_widget_control_templates' ) );
		add_action( 'customize_preview_init', array( $this, 'customize_preview_init' ) );
		add_filter( 'customize_refresh_nonces', array( $this, 'refresh_nonces' ) );
		add_filter( 'should_load_block_editor_scripts_and_styles', array( $this, 'should_load_block_editor_scripts_and_styles' ) );

add_action( 'dynamic_sidebar', array( $this, 'tally_rendered_widgets' ) );
		add_filter( 'is_active_sidebar', array( $this, 'tally_sidebars_via_is_active_sidebar_calls' ), 10, 2 );
		add_filter( 'dynamic_sidebar_has_widgets', array( $this, 'tally_sidebars_via_dynamic_sidebar_calls' ), 10, 2 );

// Selective Refresh.
		add_filter( 'customize_dynamic_partial_args', array( $this, 'customize_dynamic_partial_args' ), 10, 2 );
		add_action( 'customize_preview_init', array( $this, 'selective_refresh_init' ) );
	}

/**
	 * List whether each registered widget can be use selective refresh.
	 *
	 * If the theme does not support the customize-selective-refresh-widgets feature,
	 * then this will always return an empty array.
	 *
	 * @since 4.5.0
	 *
	 * @global WP_Widget_Factory $wp_widget_factory
	 *
	 * @return array Mapping of id_base to support. If theme doesn't support
	 *               selective refresh, an empty array is returned.
	 */
	public function get_selective_refreshable_widgets() {
		global $wp_widget_factory;
		if ( ! current_theme_supports( 'customize-selective-refresh-widgets' ) ) {
			return array();
		}
		if ( ! isset( $this->selective_refreshable_widgets ) ) {
			$this->selective_refreshable_widgets = array();
			foreach ( $wp_widget_factory->widgets as $wp_widget ) {
				$this->selective_refreshable_widgets[ $wp_widget->id_base ] = ! empty( $wp_widget->widget_options['customize_selective_refresh'] );
			}
		}
		return $this->selective_refreshable_widgets;
	}

/**
	 * Determines if a widget supports selective refresh.
	 *
	 * @since 4.5.0
	 *
	 * @param string $id_base Widget ID Base.
	 * @return bool Whether the widget can be selective refreshed.
	 */
	public function is_widget_selective_refreshable( $id_base ) {
		$selective_refreshable_widgets = $this->get_selective_refreshable_widgets();
		return ! empty( $selective_refreshable_widgets[ $id_base ] );
	}

/**
	 * Retrieves the widget setting type given a setting ID.
	 *
	 * @since 4.2.0
	 *
	 * @param string $setting_id Setting ID.
	 * @return string|void Setting type.
	 */
	protected function get_setting_type( $setting_id ) {
		static $cache = array();
		if ( isset( $cache[ $setting_id ] ) ) {
			return $cache[ $setting_id ];
		}
		foreach ( $this->setting_id_patterns as $type => $pattern ) {
			if ( preg_match( $pattern, $setting_id ) ) {
				$cache[ $setting_id ] = $type;
				return $type;
			}
		}
	}

/**
	 * Inspects the incoming customized data for any widget settings, and dynamically adds
	 * them up-front so widgets will be initialized properly.
	 *
	 * @since 4.2.0
	 */
	public function register_settings() {
		$widget_setting_ids   = array();
		$incoming_setting_ids = array_keys( $this->manager->unsanitized_post_values() );
		foreach ( $incoming_setting_ids as $setting_id ) {
			if ( ! is_null( $this->get_setting_type( $setting_id ) ) ) {
				$widget_setting_ids[] = $setting_id;
			}
		}
		if ( $this->manager->doing_ajax( 'update-widget' ) && isset( $_REQUEST['widget-id'] ) ) {
			$widget_setting_ids[] = $this->get_setting_id( wp_unslash( $_REQUEST['widget-id'] ) );
		}

$settings = $this->manager->add_dynamic_settings( array_unique( $widget_setting_ids ) );

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

/**
	 * Determines the arguments for a dynamically-created setting.
	 *
	 * @since 4.2.0
	 *
	 * @param false|array $args       The arguments to the WP_Customize_Setting constructor.
	 * @param string      $setting_id ID for dynamic setting, usually coming from `$_POST['customized']`.
	 * @return array|false Setting arguments, false otherwise.
	 */
	public function filter_customize_dynamic_setting_args( $args, $setting_id ) {
		if ( $this->get_setting_type( $setting_id ) ) {
			$args = $this->get_setting_args( $setting_id );
		}
		return $args;
	}

/**
	 * Retrieves an unslashed post value or return a default.
	 *
	 * @since 3.9.0
	 *
	 * @param string $name          Post value.
	 * @param mixed  $default_value Default post value.
	 * @return mixed Unslashed post value or default value.
	 */
	protected function get_post_value( $name, $default_value = null ) {
		if ( ! isset( $_POST[ $name ] ) ) {
			return $default_value;
		}

return wp_unslash( $_POST[ $name ] );
	}

/**
	 * Override sidebars_widgets for theme switch.
	 *
	 * When switching a theme via the Customizer, supply any previously-configured
	 * sidebars_widgets from the target theme as the initial sidebars_widgets
	 * setting. Also store the old theme's existing settings so that they can
	 * be passed along for storing in the sidebars_widgets theme_mod when the
	 * theme gets switched.
	 *
	 * @since 3.9.0
	 *
	 * @global array $sidebars_widgets
	 * @global array $_wp_sidebars_widgets
	 */
	public function override_sidebars_widgets_for_theme_switch() {
		global $sidebars_widgets;

if ( $this->manager->doing_ajax() || $this->manager->is_theme_active() ) {
			return;
		}

$this->old_sidebars_widgets = wp_get_sidebars_widgets();
		add_filter( 'customize_value_old_sidebars_widgets_data', array( $this, 'filter_customize_value_old_sidebars_widgets_data' ) );
		$this->manager->set_post_value( 'old_sidebars_widgets_data', $this->old_sidebars_widgets ); // Override any value cached in changeset.

// retrieve_widgets() looks at the global $sidebars_widgets.
		$sidebars_widgets = $this->old_sidebars_widgets;
		$sidebars_widgets = retrieve_widgets( 'customize' );
		add_filter( 'option_sidebars_widgets', array( $this, 'filter_option_sidebars_widgets_for_theme_switch' ), 1 );
		// Reset global cache var used by wp_get_sidebars_widgets().
		unset( $GLOBALS['_wp_sidebars_widgets'] );
	}

/**
	 * Filters old_sidebars_widgets_data Customizer setting.
	 *
	 * When switching themes, filter the Customizer setting old_sidebars_widgets_data
	 * to supply initial $sidebars_widgets before they were overridden by retrieve_widgets().
	 * The value for old_sidebars_widgets_data gets set in the old theme's sidebars_widgets
	 * theme_mod.
	 *
	 * @since 3.9.0
	 *
	 * @see WP_Customize_Widgets::handle_theme_switch()
	 *
	 * @param array $old_sidebars_widgets
	 * @return array
	 */
	public function filter_customize_value_old_sidebars_widgets_data( $old_sidebars_widgets ) {
		return $this->old_sidebars_widgets;
	}

/**
	 * Filters sidebars_widgets option for theme switch.
	 *
	 * When switching themes, the retrieve_widgets() function is run when the Customizer initializes,
	 * and then the new sidebars_widgets here get supplied as the default value for the sidebars_widgets
	 * option.
	 *
	 * @since 3.9.0
	 *
	 * @see WP_Customize_Widgets::handle_theme_switch()
	 * @global array $sidebars_widgets
	 *
	 * @param array $sidebars_widgets
	 * @return array
	 */
	public function filter_option_sidebars_widgets_for_theme_switch( $sidebars_widgets ) {
		$sidebars_widgets                  = $GLOBALS['sidebars_widgets'];
		$sidebars_widgets['array_version'] = 3;
		return $sidebars_widgets;
	}

/**
	 * Ensures all widgets get loaded into the Customizer.
	 *
	 * Note: these actions are also fired in wp_ajax_update_widget().
	 *
	 * @since 3.9.0
	 */
	public function customize_controls_init() {
		/** This action is documented in wp-admin/includes/ajax-actions.php */
		do_action( 'load-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

/** This action is documented in wp-admin/includes/ajax-actions.php */
		do_action( 'widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

/** This action is documented in wp-admin/widgets.php */
		do_action( 'sidebar_admin_setup' );
	}

/**
	 * Ensures widgets are available for all types of previews.
	 *
	 * When in preview, hook to {@see 'customize_register'} for settings after WordPress is loaded
	 * so that all filters have been initialized (e.g. Widget Visibility).
	 *
	 * @since 3.9.0
	 */
	public function schedule_customize_register() {
		if ( is_admin() ) {
			$this->customize_register();
		} else {
			add_action( 'wp', array( $this, 'customize_register' ) );
		}
	}

/**
	 * Registers Customizer settings and controls for all sidebars and widgets.
	 *
	 * @since 3.9.0
	 *
	 * @global array $wp_registered_widgets
	 * @global array $wp_registered_widget_controls
	 * @global array $wp_registered_sidebars
	 */
	public function customize_register() {
		global $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_sidebars;

$use_widgets_block_editor = wp_use_widgets_block_editor();

add_filter( 'sidebars_widgets', array( $this, 'preview_sidebars_widgets' ), 1 );

$sidebars_widgets = array_merge(
			array( 'wp_inactive_widgets' => array() ),
			array_fill_keys( array_keys( $wp_registered_sidebars ), array() ),
			wp_get_sidebars_widgets()
		);

$new_setting_ids = array();

/*
		 * Register a setting for all widgets, including those which are active,
		 * inactive, and orphaned since a widget may get suppressed from a sidebar
		 * via a plugin (like Widget Visibility).
		 */
		foreach ( array_keys( $wp_registered_widgets ) as $widget_id ) {
			$setting_id   = $this->get_setting_id( $widget_id );
			$setting_args = $this->get_setting_args( $setting_id );
			if ( ! $this->manager->get_setting( $setting_id ) ) {
				$this->manager->add_setting( $setting_id, $setting_args );
			}
			$new_setting_ids[] = $setting_id;
		}

/*
		 * Add a setting which will be supplied for the theme's sidebars_widgets
		 * theme_mod when the theme is switched.
		 */
		if ( ! $this->manager->is_theme_active() ) {
			$setting_id   = 'old_sidebars_widgets_data';
			$setting_args = $this->get_setting_args(
				$setting_id,
				array(
					'type'  => 'global_variable',
					'dirty' => true,
				)
			);
			$this->manager->add_setting( $setting_id, $setting_args );
		}

$this->manager->add_panel(
			'widgets',
			array(
				'type'                     => 'widgets',
				'title'                    => __( 'Widgets' ),
				'description'              => __( 'Widgets are independent sections of content that can be placed into widgetized areas provided by your theme (commonly called sidebars).' ),
				'priority'                 => 110,
				'active_callback'          => array( $this, 'is_panel_active' ),
				'auto_expand_sole_section' => true,
				'theme_supports'           => 'widgets',
			)
		);

foreach ( $sidebars_widgets as $sidebar_id => $sidebar_widget_ids ) {
			if ( empty( $sidebar_widget_ids ) ) {
				$sidebar_widget_ids = array();
			}

$is_registered_sidebar = is_registered_sidebar( $sidebar_id );
			$is_inactive_widgets   = ( 'wp_inactive_widgets' === $sidebar_id );
			$is_active_sidebar     = ( $is_registered_sidebar && ! $is_inactive_widgets );

// Add setting for managing the sidebar's widgets.
			if ( $is_registered_sidebar || $is_inactive_widgets ) {
				$setting_id   = sprintf( 'sidebars_widgets[%s]', $sidebar_id );
				$setting_args = $this->get_setting_args( $setting_id );
				if ( ! $this->manager->get_setting( $setting_id ) ) {
					if ( ! $this->manager->is_theme_active() ) {
						$setting_args['dirty'] = true;
					}
					$this->manager->add_setting( $setting_id, $setting_args );
				}
				$new_setting_ids[] = $setting_id;

// Add section to contain controls.
				$section_id = sprintf( 'sidebar-widgets-%s', $sidebar_id );
				if ( $is_active_sidebar ) {

$section_args = array(
						'title'      => $wp_registered_sidebars[ $sidebar_id ]['name'],
						'priority'   => array_search( $sidebar_id, array_keys( $wp_registered_sidebars ), true ),
						'panel'      => 'widgets',
						'sidebar_id' => $sidebar_id,
					);

if ( $use_widgets_block_editor ) {
						$section_args['description'] = '';
					} else {
						$section_args['description'] = $wp_registered_sidebars[ $sidebar_id ]['description'];
					}

/**
					 * Filters Customizer widget section arguments for a given sidebar.
					 *
					 * @since 3.9.0
					 *
					 * @param array      $section_args Array of Customizer widget section arguments.
					 * @param string     $section_id   Customizer section ID.
					 * @param int|string $sidebar_id   Sidebar ID.
					 */
					$section_args = apply_filters( 'customizer_widgets_section_args', $section_args, $section_id, $sidebar_id );

$section = new WP_Customize_Sidebar_Section( $this->manager, $section_id, $section_args );
					$this->manager->add_section( $section );

if ( $use_widgets_block_editor ) {
						$control = new WP_Sidebar_Block_Editor_Control(
							$this->manager,
							$setting_id,
							array(
								'section'     => $section_id,
								'sidebar_id'  => $sidebar_id,
								'label'       => $section_args['title'],
								'description' => $section_args['description'],
							)
						);
					} else {
						$control = new WP_Widget_Area_Customize_Control(
							$this->manager,
							$setting_id,
							array(
								'section'    => $section_id,
								'sidebar_id' => $sidebar_id,
								'priority'   => count( $sidebar_widget_ids ), // place 'Add Widget' and 'Reorder' buttons at end.
							)
						);
					}

$this->manager->add_control( $control );

$new_setting_ids[] = $setting_id;
				}
			}

if ( ! $use_widgets_block_editor ) {
				// Add a control for each active widget (located in a sidebar).
				foreach ( $sidebar_widget_ids as $i => $widget_id ) {

// Skip widgets that may have gone away due to a plugin being deactivated.
					if ( ! $is_active_sidebar || ! isset( $wp_registered_widgets[ $widget_id ] ) ) {
						continue;
					}

$registered_widget = $wp_registered_widgets[ $widget_id ];
					$setting_id        = $this->get_setting_id( $widget_id );
					$id_base           = $wp_registered_widget_controls[ $widget_id ]['id_base'];

$control = new WP_Widget_Form_Customize_Control(
						$this->manager,
						$setting_id,
						array(
							'label'          => $registered_widget['name'],
							'section'        => $section_id,
							'sidebar_id'     => $sidebar_id,
							'widget_id'      => $widget_id,
							'widget_id_base' => $id_base,
							'priority'       => $i,
							'width'          => $wp_registered_widget_controls[ $widget_id ]['width'],
							'height'         => $wp_registered_widget_controls[ $widget_id ]['height'],
							'is_wide'        => $this->is_wide_widget( $widget_id ),
						)
					);
					$this->manager->add_control( $control );
				}
			}
		}

if ( $this->manager->settings_previewed() ) {
			foreach ( $new_setting_ids as $new_setting_id ) {
				$this->manager->get_setting( $new_setting_id )->preview();
			}
		}
	}

/**
	 * Determines whether the widgets panel is active, based on whether there are sidebars registered.
	 *
	 * @since 4.4.0
	 *
	 * @see WP_Customize_Panel::$active_callback
	 *
	 * @global array $wp_registered_sidebars
	 * @return bool Active.
	 */
	public function is_panel_active() {
		global $wp_registered_sidebars;
		return ! empty( $wp_registered_sidebars );
	}

/**
	 * Converts a widget_id into its corresponding Customizer setting ID (option name).
	 *
	 * @since 3.9.0
	 *
	 * @param string $widget_id Widget ID.
	 * @return string Maybe-parsed widget ID.
	 */
	public function get_setting_id( $widget_id ) {
		$parsed_widget_id = $this->parse_widget_id( $widget_id );
		$setting_id       = sprintf( 'widget_%s', $parsed_widget_id['id_base'] );

if ( ! is_null( $parsed_widget_id['number'] ) ) {
			$setting_id .= sprintf( '[%d]', $parsed_widget_id['number'] );
		}
		return $setting_id;
	}

/**
	 * Determines whether the widget is considered "wide".
	 *
	 * Core widgets which may have controls wider than 250, but can still be shown
	 * in the narrow Customizer panel. The RSS and Text widgets in Core, for example,
	 * have widths of 400 and yet they still render fine in the Customizer panel.
	 *
	 * This method will return all Core widgets as being not wide, but this can be
	 * overridden with the {@see 'is_wide_widget_in_customizer'} filter.
	 *
	 * @since 3.9.0
	 *
	 * @global array $wp_registered_widget_controls
	 *
	 * @param string $widget_id Widget ID.
	 * @return bool Whether or not the widget is a "wide" widget.
	 */
	public function is_wide_widget( $widget_id ) {
		global $wp_registered_widget_controls;

$parsed_widget_id = $this->parse_widget_id( $widget_id );
		$width            = $wp_registered_widget_controls[ $widget_id ]['width'];
		$is_core          = in_array( $parsed_widget_id['id_base'], $this->core_widget_id_bases, true );
		$is_wide          = ( $width > 250 && ! $is_core );

/**
		 * Filters whether the given widget is considered "wide".
		 *
		 * @since 3.9.0
		 *
		 * @param bool   $is_wide   Whether the widget is wide, Default false.
		 * @param string $widget_id Widget ID.
		 */
		return apply_filters( 'is_wide_widget_in_customizer', $is_wide, $widget_id );
	}

/**
	 * Converts a widget ID into its id_base and number components.
	 *
	 * @since 3.9.0
	 *
	 * @param string $widget_id Widget ID.
	 * @return array Array containing a widget's id_base and number components.
	 */
	public function parse_widget_id( $widget_id ) {
		$parsed = array(
			'number'  => null,
			'id_base' => null,
		);

if ( preg_match( '/^(.+)-(\d+)$/', $widget_id, $matches ) ) {
			$parsed['id_base'] = $matches[1];
			$parsed['number']  = (int) $matches[2];
		} else {
			// Likely an old single widget.
			$parsed['id_base'] = $widget_id;
		}
		return $parsed;
	}

/**
	 * Converts a widget setting ID (option path) to its id_base and number components.
	 *
	 * @since 3.9.0
	 *
	 * @param string $setting_id Widget setting ID.
	 * @return array|WP_Error Array containing a widget's id_base and number components,
	 *                        or a WP_Error object.
	 */
	public function parse_widget_setting_id( $setting_id ) {
		if ( ! preg_match( '/^(widget_(.+?))(?:\[(\d+)\])?$/', $setting_id, $matches ) ) {
			return new WP_Error( 'widget_setting_invalid_id' );
		}

$id_base = $matches[2];
		$number  = isset( $matches[3] ) ? (int) $matches[3] : null;

return compact( 'id_base', 'number' );
	}

/**
	 * Calls admin_print_styles-widgets.php and admin_print_styles hooks to
	 * allow custom styles from plugins.
	 *
	 * @since 3.9.0
	 */
	public function print_styles() {
		/** This action is documented in wp-admin/admin-header.php */
		do_action( 'admin_print_styles-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

/** This action is documented in wp-admin/admin-header.php */
		do_action( 'admin_print_styles' );
	}

/**
	 * Calls admin_print_scripts-widgets.php and admin_print_scripts hooks to
	 * allow custom scripts from plugins.
	 *
	 * @since 3.9.0
	 */
	public function print_scripts() {
		/** This action is documented in wp-admin/admin-header.php */
		do_action( 'admin_print_scripts-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

/** This action is documented in wp-admin/admin-header.php */
		do_action( 'admin_print_scripts' );
	}

/**
	 * Enqueues scripts and styles for Customizer panel and export data to JavaScript.
	 *
	 * @since 3.9.0
	 *
	 * @global WP_Scripts $wp_scripts
	 * @global array $wp_registered_sidebars
	 * @global array $wp_registered_widgets
	 */
	public function enqueue_scripts() {
		global $wp_scripts, $wp_registered_sidebars, $wp_registered_widgets;

wp_enqueue_style( 'customize-widgets' );
		wp_enqueue_script( 'customize-widgets' );

/** This action is documented in wp-admin/admin-header.php */
		do_action( 'admin_enqueue_scripts', 'widgets.php' );

/*
		 * Export available widgets with control_tpl removed from model
		 * since plugins need templates to be in the DOM.
		 */
		$available_widgets = array();

foreach ( $this->get_available_widgets() as $available_widget ) {
			unset( $available_widget['control_tpl'] );
			$available_widgets[] = $available_widget;
		}

$widget_reorder_nav_tpl = sprintf(
			'<div class="widget-reorder-nav"><span class="move-widget" tabindex="0">%1$s</span><span class="move-widget-down" tabindex="0">%2$s</span><span class="move-widget-up" tabindex="0">%3$s</span></div>',
			__( 'Move to another area&hellip;' ),
			__( 'Move down' ),
			__( 'Move up' )
		);

$move_widget_area_tpl = str_replace(
			array( '{description}', '{btn}' ),
			array(
				__( 'Select an area to move this widget into:' ),
				_x( 'Move', 'Move widget' ),
			),
			'<div class="move-widget-area">
				<p class="description">{description}</p>
				<ul class="widget-area-select">
					<% _.each( sidebars, function ( sidebar ){ %>
						<li class="" data-id="<%- sidebar.id %>" tabindex="0">
							<div><strong><%- sidebar.name %></strong></div>
							<div><%- sidebar.description %></div>
						</li>
					<% }); %>
				</ul>
				<div class="move-widget-actions">
					<button class="move-widget-btn button" type="button">{btn}</button>
				</div>
			</div>'
		);

/*
		 * Gather all strings in PHP that may be needed by JS on the client.
		 * Once JS i18n is implemented (in #20491), this can be removed.
		 */
		$some_non_rendered_areas_messages    = array();
		$some_non_rendered_areas_messages[1] = html_entity_decode(
			__( 'Your theme has 1 other widget area, but this particular page does not display it.' ),
			ENT_QUOTES,
			get_bloginfo( 'charset' )
		);
		$registered_sidebar_count            = count( $wp_registered_sidebars );
		for ( $non_rendered_count = 2; $non_rendered_count < $registered_sidebar_count; $non_rendered_count++ ) {
			$some_non_rendered_areas_messages[ $non_rendered_count ] = html_entity_decode(
				sprintf(
					/* translators: %s: The number of other widget areas registered but not rendered. */
					_n(
						'Your theme has %s other widget area, but this particular page does not display it.',
						'Your theme has %s other widget areas, but this particular page does not display them.',
						$non_rendered_count
					),
					number_format_i18n( $non_rendered_count )
				),
				ENT_QUOTES,
				get_bloginfo( 'charset' )
			);
		}

if ( 1 === $registered_sidebar_count ) {
			$no_areas_shown_message = html_entity_decode(
				sprintf(
					__( 'Your theme has 1 widget area, but this particular page does not display it.' )
				),
				ENT_QUOTES,
				get_bloginfo( 'charset' )
			);
		} else {
			$no_areas_shown_message = html_entity_decode(
				sprintf(
					/* translators: %s: The total number of widget areas registered. */
					_n(
						'Your theme has %s widget area, but this particular page does not display it.',
						'Your theme has %s widget areas, but this particular page does not display them.',
						$registered_sidebar_count
					),
					number_format_i18n( $registered_sidebar_count )
				),
				ENT_QUOTES,
				get_bloginfo( 'charset' )
			);
		}

$settings = array(
			'registeredSidebars'          => array_values( $wp_registered_sidebars ),
			'registeredWidgets'           => $wp_registered_widgets,
			'availableWidgets'            => $available_widgets, // @todo Merge this with registered_widgets.
			'l10n'                        => array(
				'saveBtnLabel'     => __( 'Apply' ),
				'saveBtnTooltip'   => __( 'Save and preview changes before publishing them.' ),
				'removeBtnLabel'   => __( 'Remove' ),
				'removeBtnTooltip' => __( 'Keep widget settings and move it to the inactive widgets' ),
				'error'            => __( 'An error has occurred. Please reload the page and try again.' ),
				'widgetMovedUp'    => __( 'Widget moved up' ),
				'widgetMovedDown'  => __( 'Widget moved down' ),
				'navigatePreview'  => __( 'You can navigate to other pages on your site while using the Customizer to view and edit the widgets displayed on those pages.' ),
				'someAreasShown'   => $some_non_rendered_areas_messages,
				'noAreasShown'     => $no_areas_shown_message,
				'reorderModeOn'    => __( 'Reorder mode enabled' ),
				'reorderModeOff'   => __( 'Reorder mode closed' ),
				'reorderLabelOn'   => esc_attr__( 'Reorder widgets' ),
				/* translators: %d: The number of widgets found. */
				'widgetsFound'     => __( 'Number of widgets found: %d' ),
				'noWidgetsFound'   => __( 'No widgets found.' ),
			),
			'tpl'                         => array(
				'widgetReorderNav' => $widget_reorder_nav_tpl,
				'moveWidgetArea'   => $move_widget_area_tpl,
			),
			'selectiveRefreshableWidgets' => $this->get_selective_refreshable_widgets(),
		);

foreach ( $settings['registeredWidgets'] as &$registered_widget ) {
			unset( $registered_widget['callback'] ); // May not be JSON-serializable.
		}

$wp_scripts->add_data(
			'customize-widgets',
			'data',
			sprintf( 'var _wpCustomizeWidgetsSettings = %s;', wp_json_encode( $settings ) )
		);

/*
		 * TODO: Update 'wp-customize-widgets' to not rely so much on things in
		 * 'customize-widgets'. This will let us skip most of the above and not
		 * enqueue 'customize-widgets' which saves bytes.
		 */

if ( wp_use_widgets_block_editor() ) {
			$block_editor_context = new WP_Block_Editor_Context(
				array(
					'name' => 'core/customize-widgets',
				)
			);

$editor_settings = get_block_editor_settings(
				get_legacy_widget_block_editor_settings(),
				$block_editor_context
			);

wp_add_inline_script(
				'wp-customize-widgets',
				sprintf(
					'wp.domReady( function() {
					   wp.customizeWidgets.initialize( "widgets-customizer", %s );
					} );',
					wp_json_encode( $editor_settings )
				)
			);

// Preload server-registered block schemas.
			wp_add_inline_script(
				'wp-blocks',
				'wp.blocks.unstable__bootstrapServerSideBlockDefinitions(' . wp_json_encode( get_block_editor_server_block_settings() ) . ');'
			);

// Preload server-registered block bindings sources.
			$registered_sources = get_all_registered_block_bindings_sources();
			if ( ! empty( $registered_sources ) ) {
				$filtered_sources = array();
				foreach ( $registered_sources as $source ) {
					$filtered_sources[] = array(
						'name'        => $source->name,
						'label'       => $source->label,
						'usesContext' => $source->uses_context,
					);
				}
				$script = sprintf( 'for ( const source of %s ) { wp.blocks.registerBlockBindingsSource( source ); }', wp_json_encode( $filtered_sources ) );
				wp_add_inline_script(
					'wp-blocks',
					$script
				);
			}

wp_add_inline_script(
				'wp-blocks',
				sprintf( 'wp.blocks.setCategories( %s );', wp_json_encode( get_block_categories( $block_editor_context ) ) ),
				'after'
			);

wp_enqueue_script( 'wp-customize-widgets' );
			wp_enqueue_style( 'wp-customize-widgets' );

/** This action is documented in edit-form-blocks.php */
			do_action( 'enqueue_block_editor_assets' );
		}
	}

/**
	 * Renders the widget form control templates into the DOM.
	 *
	 * @since 3.9.0
	 */
	public function output_widget_control_templates() {
		?>
		<div id="widgets-left">
		<div id="available-widgets">
			<div class="customize-section-title">
				<button class="customize-section-back" tabindex="-1">
					<span class="screen-reader-text">
						<?php
						/* translators: Hidden accessibility text. */
						_e( 'Back' );
						?>
					</span>
				</button>
				<h3>
					<span class="customize-action">
					<?php
						/* translators: &#9656; is the unicode right-pointing triangle. %s: Section title in the Customizer. */
						printf( __( 'Customizing &#9656; %s' ), esc_html( $this->manager->get_panel( 'widgets' )->title ) );
					?>
					</span>
					<?php _e( 'Add a Widget' ); ?>
				</h3>
			</div>
			<div id="available-widgets-filter">
				<label for="widgets-search">
					<?php
					/* translators: Hidden accessibility text. */
					_e( 'Search Widgets' );
					?>
				</label>
				<input type="text" id="widgets-search" aria-describedby="widgets-search-desc" />
				<div class="search-icon" aria-hidden="true"></div>
				<button type="button" class="clear-results"><span class="screen-reader-text">
					<?php
					/* translators: Hidden accessibility text. */
					_e( 'Clear Results' );
					?>
				</span></button>
				<p class="screen-reader-text" id="widgets-search-desc">
					<?php
					/* translators: Hidden accessibility text. */
					_e( 'The search results will be updated as you type.' );
					?>
				</p>
			</div>
			<div id="available-widgets-list">
			<?php foreach ( $this->get_available_widgets() as $available_widget ) : ?>
				<div id="widget-tpl-<?php echo esc_attr( $available_widget['id'] ); ?>" data-widget-id="<?php echo esc_attr( $available_widget['id'] ); ?>" class="widget-tpl <?php echo esc_attr( $available_widget['id'] ); ?>" tabindex="0">
					<?php echo $available_widget['control_tpl']; ?>
				</div>
			<?php endforeach; ?>
			<p class="no-widgets-found-message"><?php _e( 'No widgets found.' ); ?></p>
			</div>
		</div>
		</div>
		<?php
	}

/**
	 * Calls admin_print_footer_scripts and admin_print_scripts hooks to
	 * allow custom scripts from plugins.
	 *
	 * @since 3.9.0
	 */
	public function print_footer_scripts() {
		/** This action is documented in wp-admin/admin-footer.php */
		do_action( 'admin_print_footer_scripts-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

/** This action is documented in wp-admin/admin-footer.php */
		do_action( 'admin_print_footer_scripts' );

/** This action is documented in wp-admin/admin-footer.php */
		do_action( 'admin_footer-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
	}

/**
	 * Retrieves common arguments to supply when constructing a Customizer setting.
	 *
	 * @since 3.9.0
	 *
	 * @param string $id        Widget setting ID.
	 * @param array  $overrides Array of setting overrides.
	 * @return array Possibly modified setting arguments.
	 */
	public function get_setting_args( $id, $overrides = array() ) {
		$args = array(
			'type'       => 'option',
			'capability' => 'edit_theme_options',
			'default'    => array(),
		);

if ( preg_match( $this->setting_id_patterns['sidebar_widgets'], $id, $matches ) ) {
			$args['sanitize_callback']    = array( $this, 'sanitize_sidebar_widgets' );
			$args['sanitize_js_callback'] = array( $this, 'sanitize_sidebar_widgets_js_instance' );
			$args['transport']            = current_theme_supports( 'customize-selective-refresh-widgets' ) ? 'postMessage' : 'refresh';
		} elseif ( preg_match( $this->setting_id_patterns['widget_instance'], $id, $matches ) ) {
			$id_base                      = $matches['id_base'];
			$args['sanitize_callback']    = function ( $value ) use ( $id_base ) {
				return $this->sanitize_widget_instance( $value, $id_base );
			};
			$args['sanitize_js_callback'] = function ( $value ) use ( $id_base ) {
				return $this->sanitize_widget_js_instance( $value, $id_base );
			};
			$args['transport']            = $this->is_widget_selective_refreshable( $matches['id_base'] ) ? 'postMessage' : 'refresh';
		}

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

/**
		 * Filters the common arguments supplied when constructing a Customizer setting.
		 *
		 * @since 3.9.0
		 *
		 * @see WP_Customize_Setting
		 *
		 * @param array  $args Array of Customizer setting arguments.
		 * @param string $id   Widget setting ID.
		 */
		return apply_filters( 'widget_customizer_setting_args', $args, $id );
	}

/**
	 * Ensures sidebar widget arrays only ever contain widget IDS.
	 *
	 * Used as the 'sanitize_callback' for each $sidebars_widgets setting.
	 *
	 * @since 3.9.0
	 *
	 * @param string[] $widget_ids Array of widget IDs.
	 * @return string[] Array of sanitized widget IDs.
	 */
	public function sanitize_sidebar_widgets( $widget_ids ) {
		$widget_ids           = array_map( 'strval', (array) $widget_ids );
		$sanitized_widget_ids = array();
		foreach ( $widget_ids as $widget_id ) {
			$sanitized_widget_ids[] = preg_replace( '/[^a-z0-9_\-]/', '', $widget_id );
		}
		return $sanitized_widget_ids;
	}

/**
	 * Builds up an index of all available widgets for use in Backbone models.
	 *
	 * @since 3.9.0
	 *
	 * @global array $wp_registered_widgets
	 * @global array $wp_registered_widget_controls
	 *
	 * @see wp_list_widgets()
	 *
	 * @return array List of available widgets.
	 */
	public function get_available_widgets() {
		static $available_widgets = array();
		if ( ! empty( $available_widgets ) ) {
			return $available_widgets;
		}

global $wp_registered_widgets, $wp_registered_widget_controls;
		require_once ABSPATH . 'wp-admin/includes/widgets.php'; // For next_widget_id_number().

$sort = $wp_registered_widgets;
		usort( $sort, array( $this, '_sort_name_callback' ) );
		$done = array();

foreach ( $sort as $widget ) {
			if ( in_array( $widget['callback'], $done, true ) ) { // We already showed this multi-widget.
				continue;
			}

$sidebar = is_active_widget( $widget['callback'], $widget['id'], false, false );
			$done[]  = $widget['callback'];

if ( ! isset( $widget['params'][0] ) ) {
				$widget['params'][0] = array();
			}

$available_widget = $widget;
			unset( $available_widget['callback'] ); // Not serializable to JSON.

$args = array(
				'widget_id'   => $widget['id'],
				'widget_name' => $widget['name'],
				'_display'    => 'template',
			);

$is_disabled     = false;
			$is_multi_widget = ( isset( $wp_registered_widget_controls[ $widget['id'] ]['id_base'] ) && isset( $widget['params'][0]['number'] ) );
			if ( $is_multi_widget ) {
				$id_base            = $wp_registered_widget_controls[ $widget['id'] ]['id_base'];
				$args['_temp_id']   = "$id_base-__i__";
				$args['_multi_num'] = next_widget_id_number( $id_base );
				$args['_add']       = 'multi';
			} else {
				$args['_add'] = 'single';

if ( $sidebar && 'wp_inactive_widgets' !== $sidebar ) {
					$is_disabled = true;
				}
				$id_base = $widget['id'];
			}

$list_widget_controls_args = wp_list_widget_controls_dynamic_sidebar(
				array(
					0 => $args,
					1 => $widget['params'][0],
				)
			);
			$control_tpl               = $this->get_widget_control( $list_widget_controls_args );

// The properties here are mapped to the Backbone Widget model.
			$available_widget = array_merge(
				$available_widget,
				array(
					'temp_id'      => isset( $args['_temp_id'] ) ? $args['_temp_id'] : null,
					'is_multi'     => $is_multi_widget,
					'control_tpl'  => $control_tpl,
					'multi_number' => ( 'multi' === $args['_add'] ) ? $args['_multi_num'] : false,
					'is_disabled'  => $is_disabled,
					'id_base'      => $id_base,
					'transport'    => $this->is_widget_selective_refreshable( $id_base ) ? 'postMessage' : 'refresh',
					'width'        => $wp_registered_widget_controls[ $widget['id'] ]['width'],
					'height'       => $wp_registered_widget_controls[ $widget['id'] ]['height'],
					'is_wide'      => $this->is_wide_widget( $widget['id'] ),
				)
			);

$available_widgets[] = $available_widget;
		}

return $available_widgets;
	}

/**
	 * Naturally orders available widgets by name.
	 *
	 * @since 3.9.0
	 *
	 * @param array $widget_a The first widget to compare.
	 * @param array $widget_b The second widget to compare.
	 * @return int Reorder position for the current widget comparison.
	 */
	protected function _sort_name_callback( $widget_a, $widget_b ) {
		return strnatcasecmp( $widget_a['name'], $widget_b['name'] );
	}

/**
	 * Retrieves the widget control markup.
	 *
	 * @since 3.9.0
	 *
	 * @param array $args Widget control arguments.
	 * @return string Widget control form HTML markup.
	 */
	public function get_widget_control( $args ) {
		$args[0]['before_form']           = '<div class="form">';
		$args[0]['after_form']            = '</div>';
		$args[0]['before_widget_content'] = '<div class="widget-content">';
		$args[0]['after_widget_content']  = '</div>';
		ob_start();
		wp_widget_control( ...$args );
		$control_tpl = ob_get_clean();
		return $control_tpl;
	}

/**
	 * Retrieves the widget control markup parts.
	 *
	 * @since 4.4.0
	 *
	 * @param array $args Widget control arguments.
	 * @return array {
	 *     @type string $control Markup for widget control wrapping form.
	 *     @type string $content The contents of the widget form itself.
	 * }
	 */
	public function get_widget_control_parts( $args ) {
		$args[0]['before_widget_content'] = '<div class="widget-content">';
		$args[0]['after_widget_content']  = '</div>';
		$control_markup                   = $this->get_widget_control( $args );

$content_start_pos = strpos( $control_markup, $args[0]['before_widget_content'] );
		$content_end_pos   = strrpos( $control_markup, $args[0]['after_widget_content'] );

$control  = substr( $control_markup, 0, $content_start_pos + strlen( $args[0]['before_widget_content'] ) );
		$control .= substr( $control_markup, $content_end_pos );
		$content  = trim(
			substr(
				$control_markup,
				$content_start_pos + strlen( $args[0]['before_widget_content'] ),
				$content_end_pos - $content_start_pos - strlen( $args[0]['before_widget_content'] )
			)
		);

return compact( 'control', 'content' );
	}

/**
	 * Adds hooks for the Customizer preview.
	 *
	 * @since 3.9.0
	 */
	public function customize_preview_init() {
		add_action( 'wp_enqueue_scripts', array( $this, 'customize_preview_enqueue' ) );
		add_action( 'wp_print_styles', array( $this, 'print_preview_css' ), 1 );
		add_action( 'wp_footer', array( $this, 'export_preview_data' ), 20 );
	}

/**
	 * Refreshes the nonce for widget updates.
	 *
	 * @since 4.2.0
	 *
	 * @param array $nonces Array of nonces.
	 * @return array Array of nonces.
	 */
	public function refresh_nonces( $nonces ) {
		$nonces['update-widget'] = wp_create_nonce( 'update-widget' );
		return $nonces;
	}

/**
	 * Tells the script loader to load the scripts and styles of custom blocks
	 * if the widgets block editor is enabled.
	 *
	 * @since 5.8.0
	 *
	 * @param bool $is_block_editor_screen Current decision about loading block assets.
	 * @return bool Filtered decision about loading block assets.
	 */
	public function should_load_block_editor_scripts_and_styles( $is_block_editor_screen ) {
		if ( wp_use_widgets_block_editor() ) {
			return true;
		}

return $is_block_editor_screen;
	}

/**
	 * When previewing, ensures the proper previewing widgets are used.
	 *
	 * Because wp_get_sidebars_widgets() gets called early at {@see 'init' } (via
	 * wp_convert_widget_settings()) and can set global variable `$_wp_sidebars_widgets`
	 * to the value of `get_option( 'sidebars_widgets' )` before the Customizer preview
	 * filter is added, it has to be reset after the filter has been added.
	 *
	 * @since 3.9.0
	 *
	 * @param array $sidebars_widgets List of widgets for the current sidebar.
	 * @return array
	 */
	public function preview_sidebars_widgets( $sidebars_widgets ) {
		$sidebars_widgets = get_option( 'sidebars_widgets', array() );

unset( $sidebars_widgets['array_version'] );
		return $sidebars_widgets;
	}

/**
	 * Enqueues scripts for the Customizer preview.
	 *
	 * @since 3.9.0
	 */
	public function customize_preview_enqueue() {
		wp_enqueue_script( 'customize-preview-widgets' );
	}

/**
	 * Inserts default style for highlighted widget at early point so theme
	 * stylesheet can override.
	 *
	 * @since 3.9.0
	 */
	public function print_preview_css() {
		?>
		<style>
		.widget-customizer-highlighted-widget {
			outline: none;
			-webkit-box-shadow: 0 0 2px rgba(30, 140, 190, 0.8);
			box-shadow: 0 0 2px rgba(30, 140, 190, 0.8);
			position: relative;
			z-index: 1;
		}
		</style>
		<?php
	}

/**
	 * Communicates the sidebars that appeared on the page at the very end of the page,
	 * and at the very end of the wp_footer,
	 *
	 * @since 3.9.0
	 *
	 * @global array $wp_registered_sidebars
	 * @global array $wp_registered_widgets
	 */
	public function export_preview_data() {
		global $wp_registered_sidebars, $wp_registered_widgets;

$switched_locale = switch_to_user_locale( get_current_user_id() );

$l10n = array(
			'widgetTooltip' => __( 'Shift-click to edit this widget.' ),
		);

if ( $switched_locale ) {
			restore_previous_locale();
		}

$rendered_sidebars = array_filter( $this->rendered_sidebars );
		$rendered_widgets  = array_filter( $this->rendered_widgets );

// Prepare Customizer settings to pass to JavaScript.
		$settings = array(
			'renderedSidebars'            => array_fill_keys( array_keys( $rendered_sidebars ), true ),
			'renderedWidgets'             => array_fill_keys( array_keys( $rendered_widgets ), true ),
			'registeredSidebars'          => array_values( $wp_registered_sidebars ),
			'registeredWidgets'           => $wp_registered_widgets,
			'l10n'                        => $l10n,
			'selectiveRefreshableWidgets' => $this->get_selective_refreshable_widgets(),
		);

foreach ( $settings['registeredWidgets'] as &$registered_widget ) {
			unset( $registered_widget['callback'] ); // May not be JSON-serializable.
		}
		wp_print_inline_script_tag(
			sprintf( 'var _wpWidgetCustomizerPreviewSettings = %s;', wp_json_encode( $settings ) )
		);
	}

/**
	 * Tracks the widgets that were rendered.
	 *
	 * @since 3.9.0
	 *
	 * @param array $widget Rendered widget to tally.
	 */
	public function tally_rendered_widgets( $widget ) {
		$this->rendered_widgets[ $widget['id'] ] = true;
	}

/**
	 * Determine if a widget is rendered on the page.
	 *
	 * @since 4.0.0
	 *
	 * @param string $widget_id Widget ID to check.
	 * @return bool Whether the widget is rendered.
	 */
	public function is_widget_rendered( $widget_id ) {
		return ! empty( $this->rendered_widgets[ $widget_id ] );
	}

/**
	 * Determines if a sidebar is rendered on the page.
	 *
	 * @since 4.0.0
	 *
	 * @param string $sidebar_id Sidebar ID to check.
	 * @return bool Whether the sidebar is rendered.
	 */
	public function is_sidebar_rendered( $sidebar_id ) {
		return ! empty( $this->rendered_sidebars[ $sidebar_id ] );
	}

/**
	 * Tallies the sidebars rendered via is_active_sidebar().
	 *
	 * Keep track of the times that is_active_sidebar() is called in the template,
	 * and assume that this means that the sidebar would be rendered on the template
	 * if there were widgets populating it.
	 *
	 * @since 3.9.0
	 *
	 * @param bool   $is_active  Whether the sidebar is active.
	 * @param string $sidebar_id Sidebar ID.
	 * @return bool Whether the sidebar is active.
	 */
	public function tally_sidebars_via_is_active_sidebar_calls( $is_active, $sidebar_id ) {
		if ( is_registered_sidebar( $sidebar_id ) ) {
			$this->rendered_sidebars[ $sidebar_id ] = true;
		}

/*
		 * We may need to force this to true, and also force-true the value
		 * for 'dynamic_sidebar_has_widgets' if we want to ensure that there
		 * is an area to drop widgets into, if the sidebar is empty.
		 */
		return $is_active;
	}

/**
	 * Tallies the sidebars rendered via dynamic_sidebar().
	 *
	 * Keep track of the times that dynamic_sidebar() is called in the template,
	 * and assume this means the sidebar would be rendered on the template if
	 * there were widgets populating it.
	 *
	 * @since 3.9.0
	 *
	 * @param bool   $has_widgets Whether the current sidebar has widgets.
	 * @param string $sidebar_id  Sidebar ID.
	 * @return bool Whether the current sidebar has widgets.
	 */
	public function tally_sidebars_via_dynamic_sidebar_calls( $has_widgets, $sidebar_id ) {
		if ( is_registered_sidebar( $sidebar_id ) ) {
			$this->rendered_sidebars[ $sidebar_id ] = true;
		}

/*
		 * We may need to force this to true, and also force-true the value
		 * for 'is_active_sidebar' if we want to ensure there is an area to
		 * drop widgets into, if the sidebar is empty.
		 */
		return $has_widgets;
	}

/**
	 * Retrieves MAC for a serialized widget instance string.
	 *
	 * Allows values posted back from JS to be rejected if any tampering of the
	 * data has occurred.
	 *
	 * @since 3.9.0
	 *
	 * @param string $serialized_instance Widget instance.
	 * @return string MAC for serialized widget instance.
	 */
	protected function get_instance_hash_key( $serialized_instance ) {
		return wp_hash( $serialized_instance );
	}

/**
	 * Sanitizes a widget instance.
	 *
	 * Unserialize the JS-instance for storing in the options. It's important that this filter
	 * only get applied to an instance *once*.
	 *
	 * @since 3.9.0
	 * @since 5.8.0 Added the `$id_base` parameter.
	 *
	 * @global WP_Widget_Factory $wp_widget_factory
	 *
	 * @param array  $value   Widget instance to sanitize.
	 * @param string $id_base Optional. Base of the ID of the widget being sanitized. Default null.
	 * @return array|void Sanitized widget instance.
	 */
	public function sanitize_widget_instance( $value, $id_base = null ) {
		global $wp_widget_factory;

if ( array() === $value ) {
			return $value;
		}

if ( isset( $value['raw_instance'] ) && $id_base && wp_use_widgets_block_editor() ) {
			$widget_object = $wp_widget_factory->get_widget_object( $id_base );
			if ( ! empty( $widget_object->widget_options['show_instance_in_rest'] ) ) {
				if ( 'block' === $id_base && ! current_user_can( 'unfiltered_html' ) ) {
					/*
					 * The content of the 'block' widget is not filtered on the fly while editing.
					 * Filter the content here to prevent vulnerabilities.
					 */
					$value['raw_instance']['content'] = wp_kses_post( $value['raw_instance']['content'] );
				}

return $value['raw_instance'];
			}
		}

if (
			empty( $value['is_widget_customizer_js_value'] ) ||
			empty( $value['instance_hash_key'] ) ||
			empty( $value['encoded_serialized_instance'] )
		) {
			return;
		}

$decoded = base64_decode( $value['encoded_serialized_instance'], true );
		if ( false === $decoded ) {
			return;
		}

if ( ! hash_equals( $this->get_instance_hash_key( $decoded ), $value['instance_hash_key'] ) ) {
			return;
		}

$instance = unserialize( $decoded );
		if ( false === $instance ) {
			return;
		}

return $instance;
	}

/**
	 * Converts a widget instance into JSON-representable format.
	 *
	 * @since 3.9.0
	 * @since 5.8.0 Added the `$id_base` parameter.
	 *
	 * @global WP_Widget_Factory $wp_widget_factory
	 *
	 * @param array  $value   Widget instance to convert to JSON.
	 * @param string $id_base Optional. Base of the ID of the widget being sanitized. Default null.
	 * @return array JSON-converted widget instance.
	 */
	public function sanitize_widget_js_instance( $value, $id_base = null ) {
		global $wp_widget_factory;

if ( empty( $value['is_widget_customizer_js_value'] ) ) {
			$serialized = serialize( $value );

$js_value = array(
				'encoded_serialized_instance'   => base64_encode( $serialized ),
				'title'                         => empty( $value['title'] ) ? '' : $value['title'],
				'is_widget_customizer_js_value' => true,
				'instance_hash_key'             => $this->get_instance_hash_key( $serialized ),
			);

if ( $id_base && wp_use_widgets_block_editor() ) {
				$widget_object = $wp_widget_factory->get_widget_object( $id_base );
				if ( ! empty( $widget_object->widget_options['show_instance_in_rest'] ) ) {
					$js_value['raw_instance'] = (object) $value;
				}
			}

return $js_value;
		}

return $value;
	}

/**
	 * Strips out widget IDs for widgets which are no longer registered.
	 *
	 * One example where this might happen is when a plugin orphans a widget
	 * in a sidebar upon deactivation.
	 *
	 * @since 3.9.0
	 *
	 * @global array $wp_registered_widgets
	 *
	 * @param array $widget_ids List of widget IDs.
	 * @return array Parsed list of widget IDs.
	 */
	public function sanitize_sidebar_widgets_js_instance( $widget_ids ) {
		global $wp_registered_widgets;
		$widget_ids = array_values( array_intersect( $widget_ids, array_keys( $wp_registered_widgets ) ) );
		return $widget_ids;
	}

/**
	 * Finds and invokes the widget update and control callbacks.
	 *
	 * Requires that `$_POST` be populated with the instance data.
	 *
	 * @since 3.9.0
	 *
	 * @global array $wp_registered_widget_updates
	 * @global array $wp_registered_widget_controls
	 *
	 * @param string $widget_id Widget ID.
	 * @return array|WP_Error Array containing the updated widget information.
	 *                        A WP_Error object, otherwise.
	 */
	public function call_widget_update( $widget_id ) {
		global $wp_registered_widget_updates, $wp_registered_widget_controls;

$setting_id = $this->get_setting_id( $widget_id );

/*
		 * Make sure that other setting changes have previewed since this widget
		 * may depend on them (e.g. Menus being present for Navigation Menu widget).
		 */
		if ( ! did_action( 'customize_preview_init' ) ) {
			foreach ( $this->manager->settings() as $setting ) {
				if ( $setting->id !== $setting_id ) {
					$setting->preview();
				}
			}
		}

$this->start_capturing_option_updates();
		$parsed_id   = $this->parse_widget_id( $widget_id );
		$option_name = 'widget_' . $parsed_id['id_base'];

/*
		 * If a previously-sanitized instance is provided, populate the input vars
		 * with its values so that the widget update callback will read this instance
		 */
		$added_input_vars = array();
		if ( ! empty( $_POST['sanitized_widget_setting'] ) ) {
			$sanitized_widget_setting = json_decode( $this->get_post_value( 'sanitized_widget_setting' ), true );
			if ( false === $sanitized_widget_setting ) {
				$this->stop_capturing_option_updates();
				return new WP_Error( 'widget_setting_malformed' );
			}

$instance = $this->sanitize_widget_instance( $sanitized_widget_setting, $parsed_id['id_base'] );
			if ( is_null( $instance ) ) {
				$this->stop_capturing_option_updates();
				return new WP_Error( 'widget_setting_unsanitized' );
			}

if ( ! is_null( $parsed_id['number'] ) ) {
				$value                         = array();
				$value[ $parsed_id['number'] ] = $instance;
				$key                           = 'widget-' . $parsed_id['id_base'];
				$_REQUEST[ $key ]              = wp_slash( $value );
				$_POST[ $key ]                 = $_REQUEST[ $key ];
				$added_input_vars[]            = $key;
			} else {
				foreach ( $instance as $key => $value ) {
					$_REQUEST[ $key ]   = wp_slash( $value );
					$_POST[ $key ]      = $_REQUEST[ $key ];
					$added_input_vars[] = $key;
				}
			}
		}

// Invoke the widget update callback.
		foreach ( (array) $wp_registered_widget_updates as $name => $control ) {
			if ( $name === $parsed_id['id_base'] && is_callable( $control['callback'] ) ) {
				ob_start();
				call_user_func_array( $control['callback'], $control['params'] );
				ob_end_clean();
				break;
			}
		}

// Clean up any input vars that were manually added.
		foreach ( $added_input_vars as $key ) {
			unset( $_POST[ $key ] );
			unset( $_REQUEST[ $key ] );
		}

// Make sure the expected option was updated.
		if ( 0 !== $this->count_captured_options() ) {
			if ( $this->count_captured_options() > 1 ) {
				$this->stop_capturing_option_updates();
				return new WP_Error( 'widget_setting_too_many_options' );
			}

$updated_option_name = key( $this->get_captured_options() );
			if ( $updated_option_name !== $option_name ) {
				$this->stop_capturing_option_updates();
				return new WP_Error( 'widget_setting_unexpected_option' );
			}
		}

// Obtain the widget instance.
		$option = $this->get_captured_option( $option_name );
		if ( null !== $parsed_id['number'] ) {
			$instance = $option[ $parsed_id['number'] ];
		} else {
			$instance = $option;
		}

/*
		 * Override the incoming $_POST['customized'] for a newly-created widget's
		 * setting with the new $instance so that the preview filter currently
		 * in place from WP_Customize_Setting::preview() will use this value
		 * instead of the default widget instance value (an empty array).
		 */
		$this->manager->set_post_value( $setting_id, $this->sanitize_widget_js_instance( $instance, $parsed_id['id_base'] ) );

// Obtain the widget control with the updated instance in place.
		ob_start();
		$form = $wp_registered_widget_controls[ $widget_id ];
		if ( $form ) {
			call_user_func_array( $form['callback'], $form['params'] );
		}
		$form = ob_get_clean();

$this->stop_capturing_option_updates();

return compact( 'instance', 'form' );
	}

/**
	 * Updates widget settings asynchronously.
	 *
	 * Allows the Customizer to update a widget using its form, but return the new
	 * instance info via Ajax instead of saving it to the options table.
	 *
	 * Most code here copied from wp_ajax_save_widget().
	 *
	 * @since 3.9.0
	 *
	 * @see wp_ajax_save_widget()
	 */
	public function wp_ajax_update_widget() {

if ( ! is_user_logged_in() ) {
			wp_die( 0 );
		}

check_ajax_referer( 'update-widget', 'nonce' );

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

if ( empty( $_POST['widget-id'] ) ) {
			wp_send_json_error( 'missing_widget-id' );
		}

/** This action is documented in wp-admin/includes/ajax-actions.php */
		do_action( 'load-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

/** This action is documented in wp-admin/includes/ajax-actions.php */
		do_action( 'widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

/** This action is documented in wp-admin/widgets.php */
		do_action( 'sidebar_admin_setup' );

$widget_id = $this->get_post_value( 'widget-id' );
		$parsed_id = $this->parse_widget_id( $widget_id );
		$id_base   = $parsed_id['id_base'];

$is_updating_widget_template = (
			isset( $_POST[ 'widget-' . $id_base ] )
			&&
			is_array( $_POST[ 'widget-' . $id_base ] )
			&&
			preg_match( '/__i__|%i%/', key( $_POST[ 'widget-' . $id_base ] ) )
		);
		if ( $is_updating_widget_template ) {
			wp_send_json_error( 'template_widget_not_updatable' );
		}

$updated_widget = $this->call_widget_update( $widget_id ); // => {instance,form}
		if ( is_wp_error( $updated_widget ) ) {
			wp_send_json_error( $updated_widget->get_error_code() );
		}

$form     = $updated_widget['form'];
		$instance = $this->sanitize_widget_js_instance( $updated_widget['instance'], $id_base );

wp_send_json_success( compact( 'form', 'instance' ) );
	}

/*
	 * Selective Refresh Methods
	 */

/**
	 * Filters arguments for dynamic widget partials.
	 *
	 * @since 4.5.0
	 *
	 * @param array|false $partial_args Partial arguments.
	 * @param string      $partial_id   Partial ID.
	 * @return array (Maybe) modified partial arguments.
	 */
	public function customize_dynamic_partial_args( $partial_args, $partial_id ) {
		if ( ! current_theme_supports( 'customize-selective-refresh-widgets' ) ) {
			return $partial_args;
		}

if ( preg_match( '/^widget\[(?P<widget_id>.+)\]$/', $partial_id, $matches ) ) {
			if ( false === $partial_args ) {
				$partial_args = array();
			}
			$partial_args = array_merge(
				$partial_args,
				array(
					'type'                => 'widget',
					'render_callback'     => array( $this, 'render_widget_partial' ),
					'container_inclusive' => true,
					'settings'            => array( $this->get_setting_id( $matches['widget_id'] ) ),
					'capability'          => 'edit_theme_options',
				)
			);
		}

return $partial_args;
	}

/**
	 * Adds hooks for selective refresh.
	 *
	 * @since 4.5.0
	 */
	public function selective_refresh_init() {
		if ( ! current_theme_supports( 'customize-selective-refresh-widgets' ) ) {
			return;
		}
		add_filter( 'dynamic_sidebar_params', array( $this, 'filter_dynamic_sidebar_params' ) );
		add_filter( 'wp_kses_allowed_html', array( $this, 'filter_wp_kses_allowed_data_attributes' ) );
		add_action( 'dynamic_sidebar_before', array( $this, 'start_dynamic_sidebar' ) );
		add_action( 'dynamic_sidebar_after', array( $this, 'end_dynamic_sidebar' ) );
	}

/**
	 * Inject selective refresh data attributes into widget container elements.
	 *
	 * @since 4.5.0
	 *
	 * @param array $params {
	 *     Dynamic sidebar params.
	 *
	 *     @type array $args        Sidebar args.
	 *     @type array $widget_args Widget args.
	 * }
	 * @see WP_Customize_Nav_Menus::filter_wp_nav_menu_args()
	 *
	 * @return array Params.
	 */
	public function filter_dynamic_sidebar_params( $params ) {
		$sidebar_args = array_merge(
			array(
				'before_widget' => '',
				'after_widget'  => '',
			),
			$params[0]
		);

// Skip widgets not in a registered sidebar or ones which lack a proper wrapper element to attach the data-* attributes to.
		$matches  = array();
		$is_valid = (
			isset( $sidebar_args['id'] )
			&&
			is_registered_sidebar( $sidebar_args['id'] )
			&&
			( isset( $this->current_dynamic_sidebar_id_stack[0] ) && $this->current_dynamic_sidebar_id_stack[0] === $sidebar_args['id'] )
			&&
			preg_match( '#^<(?P<tag_name>\w+)#', $sidebar_args['before_widget'], $matches )
		);
		if ( ! $is_valid ) {
			return $params;
		}
		$this->before_widget_tags_seen[ $matches['tag_name'] ] = true;

$context = array(
			'sidebar_id' => $sidebar_args['id'],
		);
		if ( isset( $this->context_sidebar_instance_number ) ) {
			$context['sidebar_instance_number'] = $this->context_sidebar_instance_number;
		} elseif ( isset( $sidebar_args['id'] ) && isset( $this->sidebar_instance_count[ $sidebar_args['id'] ] ) ) {
			$context['sidebar_instance_number'] = $this->sidebar_instance_count[ $sidebar_args['id'] ];
		}

$attributes                    = sprintf( ' data-customize-partial-id="%s"', esc_attr( 'widget[' . $sidebar_args['widget_id'] . ']' ) );
		$attributes                   .= ' data-customize-partial-type="widget"';
		$attributes                   .= sprintf( ' data-customize-partial-placement-context="%s"', esc_attr( wp_json_encode( $context ) ) );
		$attributes                   .= sprintf( ' data-customize-widget-id="%s"', esc_attr( $sidebar_args['widget_id'] ) );
		$sidebar_args['before_widget'] = preg_replace( '#^(<\w+)#', '$1 ' . $attributes, $sidebar_args['before_widget'] );

$params[0] = $sidebar_args;
		return $params;
	}

/**
	 * List of the tag names seen for before_widget strings.
	 *
	 * This is used in the {@see 'filter_wp_kses_allowed_html'} filter to ensure that the
	 * data-* attributes can be allowed.
	 *
	 * @since 4.5.0
	 * @var array
	 */
	protected $before_widget_tags_seen = array();

/**
	 * Ensures the HTML data-* attributes for selective refresh are allowed by kses.
	 *
	 * This is needed in case the `$before_widget` is run through wp_kses() when printed.
	 *
	 * @since 4.5.0
	 *
	 * @param array $allowed_html Allowed HTML.
	 * @return array (Maybe) modified allowed HTML.
	 */
	public function filter_wp_kses_allowed_data_attributes( $allowed_html ) {
		foreach ( array_keys( $this->before_widget_tags_seen ) as $tag_name ) {
			if ( ! isset( $allowed_html[ $tag_name ] ) ) {
				$allowed_html[ $tag_name ] = array();
			}
			$allowed_html[ $tag_name ] = array_merge(
				$allowed_html[ $tag_name ],
				array_fill_keys(
					array(
						'data-customize-partial-id',
						'data-customize-partial-type',
						'data-customize-partial-placement-context',
						'data-customize-partial-widget-id',
						'data-customize-partial-options',
					),
					true
				)
			);
		}
		return $allowed_html;
	}

/**
	 * Keep track of the number of times that dynamic_sidebar() was called for a given sidebar index.
	 *
	 * This helps facilitate the uncommon scenario where a single sidebar is rendered multiple times on a template.
	 *
	 * @since 4.5.0
	 * @var array
	 */
	protected $sidebar_instance_count = array();

/**
	 * The current request's sidebar_instance_number context.
	 *
	 * @since 4.5.0
	 * @var int|null
	 */
	protected $context_sidebar_instance_number;

/**
	 * Current sidebar ID being rendered.
	 *
	 * @since 4.5.0
	 * @var array
	 */
	protected $current_dynamic_sidebar_id_stack = array();

/**
	 * Begins keeping track of the current sidebar being rendered.
	 *
	 * Insert marker before widgets are rendered in a dynamic sidebar.
	 *
	 * @since 4.5.0
	 *
	 * @param int|string $index Index, name, or ID of the dynamic sidebar.
	 */
	public function start_dynamic_sidebar( $index ) {
		array_unshift( $this->current_dynamic_sidebar_id_stack, $index );
		if ( ! isset( $this->sidebar_instance_count[ $index ] ) ) {
			$this->sidebar_instance_count[ $index ] = 0;
		}
		$this->sidebar_instance_count[ $index ] += 1;
		if ( ! $this->manager->selective_refresh->is_render_partials_request() ) {
			printf( "\n\n", esc_html( $index ), (int) $this->sidebar_instance_count[ $index ] );
		}
	}

/**
	 * Finishes keeping track of the current sidebar being rendered.
	 *
	 * Inserts a marker after widgets are rendered in a dynamic sidebar.
	 *
	 * @since 4.5.0
	 *
	 * @param int|string $index Index, name, or ID of the dynamic sidebar.
	 */
	public function end_dynamic_sidebar( $index ) {
		array_shift( $this->current_dynamic_sidebar_id_stack );
		if ( ! $this->manager->selective_refresh->is_render_partials_request() ) {
			printf( "\n\n", esc_html( $index ), (int) $this->sidebar_instance_count[ $index ] );
		}
	}

/**
	 * Current sidebar being rendered.
	 *
	 * @since 4.5.0
	 * @var string|null
	 */
	protected $rendering_widget_id;

/**
	 * Current widget being rendered.
	 *
	 * @since 4.5.0
	 * @var string|null
	 */
	protected $rendering_sidebar_id;

/**
	 * Filters sidebars_widgets to ensure the currently-rendered widget is the only widget in the current sidebar.
	 *
	 * @since 4.5.0
	 *
	 * @param array $sidebars_widgets Sidebars widgets.
	 * @return array Filtered sidebars widgets.
	 */
	public function filter_sidebars_widgets_for_rendering_widget( $sidebars_widgets ) {
		$sidebars_widgets[ $this->rendering_sidebar_id ] = array( $this->rendering_widget_id );
		return $sidebars_widgets;
	}

/**
	 * Renders a specific widget using the supplied sidebar arguments.
	 *
	 * @since 4.5.0
	 *
	 * @see dynamic_sidebar()
	 *
	 * @param WP_Customize_Partial $partial Partial.
	 * @param array                $context {
	 *     Sidebar args supplied as container context.
	 *
	 *     @type string $sidebar_id              ID for sidebar for widget to render into.
	 *     @type int    $sidebar_instance_number Disambiguating instance number.
	 * }
	 * @return string|false
	 */
	public function render_widget_partial( $partial, $context ) {
		$id_data   = $partial->id_data();
		$widget_id = array_shift( $id_data['keys'] );

if ( ! is_array( $context )
			|| empty( $context['sidebar_id'] )
			|| ! is_registered_sidebar( $context['sidebar_id'] )
		) {
			return false;
		}

$this->rendering_sidebar_id = $context['sidebar_id'];

if ( isset( $context['sidebar_instance_number'] ) ) {
			$this->context_sidebar_instance_number = (int) $context['sidebar_instance_number'];
		}

// Filter sidebars_widgets so that only the queried widget is in the sidebar.
		$this->rendering_widget_id = $widget_id;

$filter_callback = array( $this, 'filter_sidebars_widgets_for_rendering_widget' );
		add_filter( 'sidebars_widgets', $filter_callback, 1000 );

// Render the widget.
		ob_start();
		$this->rendering_sidebar_id = $context['sidebar_id'];
		dynamic_sidebar( $this->rendering_sidebar_id );
		$container = ob_get_clean();

// Reset variables for next partial render.
		remove_filter( 'sidebars_widgets', $filter_callback, 1000 );

$this->context_sidebar_instance_number = null;
		$this->rendering_sidebar_id            = null;
		$this->rendering_widget_id             = null;

return $container;
	}

//
	// Option Update Capturing.
	//

/**
	 * List of captured widget option updates.
	 *
	 * @since 3.9.0
	 * @var array $_captured_options Values updated while option capture is happening.
	 */
	protected $_captured_options = array();

/**
	 * Whether option capture is currently happening.
	 *
	 * @since 3.9.0
	 * @var bool $_is_current Whether option capture is currently happening or not.
	 */
	protected $_is_capturing_option_updates = false;

/**
	 * Determines whether the captured option update should be ignored.
	 *
	 * @since 3.9.0
	 *
	 * @param string $option_name Option name.
	 * @return bool Whether the option capture is ignored.
	 */
	protected function is_option_capture_ignored( $option_name ) {
		return ( str_starts_with( $option_name, '_transient_' ) );
	}

/**
	 * Retrieves captured widget option updates.
	 *
	 * @since 3.9.0
	 *
	 * @return array Array of captured options.
	 */
	protected function get_captured_options() {
		return $this->_captured_options;
	}

/**
	 * Retrieves the option that was captured from being saved.
	 *
	 * @since 4.2.0
	 *
	 * @param string $option_name   Option name.
	 * @param mixed  $default_value Optional. Default value to return if the option does not exist. Default false.
	 * @return mixed Value set for the option.
	 */
	protected function get_captured_option( $option_name, $default_value = false ) {
		if ( array_key_exists( $option_name, $this->_captured_options ) ) {
			$value = $this->_captured_options[ $option_name ];
		} else {
			$value = $default_value;
		}
		return $value;
	}

/**
	 * Retrieves the number of captured widget option updates.
	 *
	 * @since 3.9.0
	 *
	 * @return int Number of updated options.
	 */
	protected function count_captured_options() {
		return count( $this->_captured_options );
	}

/**
	 * Begins keeping track of changes to widget options, caching new values.
	 *
	 * @since 3.9.0
	 */
	protected function start_capturing_option_updates() {
		if ( $this->_is_capturing_option_updates ) {
			return;
		}

$this->_is_capturing_option_updates = true;

add_filter( 'pre_update_option', array( $this, 'capture_filter_pre_update_option' ), 10, 3 );
	}

/**
	 * Pre-filters captured option values before updating.
	 *
	 * @since 3.9.0
	 *
	 * @param mixed  $new_value   The new option value.
	 * @param string $option_name Name of the option.
	 * @param mixed  $old_value   The old option value.
	 * @return mixed Filtered option value.
	 */
	public function capture_filter_pre_update_option( $new_value, $option_name, $old_value ) {
		if ( $this->is_option_capture_ignored( $option_name ) ) {
			return $new_value;
		}

if ( ! isset( $this->_captured_options[ $option_name ] ) ) {
			add_filter( "pre_option_{$option_name}", array( $this, 'capture_filter_pre_get_option' ) );
		}

$this->_captured_options[ $option_name ] = $new_value;

return $old_value;
	}

/**
	 * Pre-filters captured option values before retrieving.
	 *
	 * @since 3.9.0
	 *
	 * @param mixed $value Value to return instead of the option value.
	 * @return mixed Filtered option value.
	 */
	public function capture_filter_pre_get_option( $value ) {
		$option_name = preg_replace( '/^pre_option_/', '', current_filter() );

if ( isset( $this->_captured_options[ $option_name ] ) ) {
			$value = $this->_captured_options[ $option_name ];

/** This filter is documented in wp-includes/option.php */
			$value = apply_filters( 'option_' . $option_name, $value, $option_name );
		}

return $value;
	}

/**
	 * Undoes any changes to the options since options capture began.
	 *
	 * @since 3.9.0
	 */
	protected function stop_capturing_option_updates() {
		if ( ! $this->_is_capturing_option_updates ) {
			return;
		}

remove_filter( 'pre_update_option', array( $this, 'capture_filter_pre_update_option' ), 10 );

foreach ( array_keys( $this->_captured_options ) as $option_name ) {
			remove_filter( "pre_option_{$option_name}", array( $this, 'capture_filter_pre_get_option' ) );
		}

$this->_captured_options            = array();
		$this->_is_capturing_option_updates = false;
	}

/**
	 * {@internal Missing Summary}
	 *
	 * See the {@see 'customize_dynamic_setting_args'} filter.
	 *
	 * @since 3.9.0
	 * @deprecated 4.2.0 Deprecated in favor of the {@see 'customize_dynamic_setting_args'} filter.
	 */
	public function setup_widget_addition_previews() {
		_deprecated_function( __METHOD__, '4.2.0', 'customize_dynamic_setting_args' );
	}

/**
	 * {@internal Missing Summary}
	 *
	 * See the {@see 'customize_dynamic_setting_args'} filter.
	 *
	 * @since 3.9.0
	 * @deprecated 4.2.0 Deprecated in favor of the {@see 'customize_dynamic_setting_args'} filter.
	 */
	public function prepreview_added_sidebars_widgets() {
		_deprecated_function( __METHOD__, '4.2.0', 'customize_dynamic_setting_args' );
	}

/**
	 * {@internal Missing Summary}
	 *
	 * See the {@see 'customize_dynamic_setting_args'} filter.
	 *
	 * @since 3.9.0
	 * @deprecated 4.2.0 Deprecated in favor of the {@see 'customize_dynamic_setting_args'} filter.
	 */
	public function prepreview_added_widget_instance() {
		_deprecated_function( __METHOD__, '4.2.0', 'customize_dynamic_setting_args' );
	}

/**
	 * {@internal Missing Summary}
	 *
	 * See the {@see 'customize_dynamic_setting_args'} filter.
	 *
	 * @since 3.9.0
	 * @deprecated 4.2.0 Deprecated in favor of the {@see 'customize_dynamic_setting_args'} filter.
	 */
	public function remove_prepreview_filters() {
		_deprecated_function( __METHOD__, '4.2.0', 'customize_dynamic_setting_args' );
	}
}

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