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Code Editor : class-wp-customize-widgets.php
<?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 %>" title="<%- sidebar.description %>" tabindex="0"><%- sidebar.name %></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() ) . ');' ); 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' ); } }
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