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1 <?php 2 /** 3 * WordPress Customize Widgets classes 4 * 5 * @package WordPress 6 * @subpackage Customize 7 * @since 3.9.0 8 */ 9 10 /** 11 * Customize Widgets class. 12 * 13 * Implements widget management in the Customizer. 14 * 15 * @since 3.9.0 16 * 17 * @see WP_Customize_Manager 18 */ 19 #[AllowDynamicProperties] 20 final class WP_Customize_Widgets { 21 22 /** 23 * WP_Customize_Manager instance. 24 * 25 * @since 3.9.0 26 * @var WP_Customize_Manager 27 */ 28 public $manager; 29 30 /** 31 * All id_bases for widgets defined in core. 32 * 33 * @since 3.9.0 34 * @var array 35 */ 36 protected $core_widget_id_bases = array( 37 'archives', 38 'calendar', 39 'categories', 40 'custom_html', 41 'links', 42 'media_audio', 43 'media_image', 44 'media_video', 45 'meta', 46 'nav_menu', 47 'pages', 48 'recent-comments', 49 'recent-posts', 50 'rss', 51 'search', 52 'tag_cloud', 53 'text', 54 ); 55 56 /** 57 * @since 3.9.0 58 * @var array 59 */ 60 protected $rendered_sidebars = array(); 61 62 /** 63 * @since 3.9.0 64 * @var array 65 */ 66 protected $rendered_widgets = array(); 67 68 /** 69 * @since 3.9.0 70 * @var array 71 */ 72 protected $old_sidebars_widgets = array(); 73 74 /** 75 * Mapping of widget ID base to whether it supports selective refresh. 76 * 77 * @since 4.5.0 78 * @var array 79 */ 80 protected $selective_refreshable_widgets; 81 82 /** 83 * Mapping of setting type to setting ID pattern. 84 * 85 * @since 4.2.0 86 * @var array 87 */ 88 protected $setting_id_patterns = array( 89 'widget_instance' => '/^widget_(?P<id_base>.+?)(?:\[(?P<widget_number>\d+)\])?$/', 90 'sidebar_widgets' => '/^sidebars_widgets\[(?P<sidebar_id>.+?)\]$/', 91 ); 92 93 /** 94 * Initial loader. 95 * 96 * @since 3.9.0 97 * 98 * @param WP_Customize_Manager $manager Customizer bootstrap instance. 99 */ 100 public function __construct( $manager ) { 101 $this->manager = $manager; 102 103 // See https://github.com/xwp/wp-customize-snapshots/blob/962586659688a5b1fd9ae93618b7ce2d4e7a421c/php/class-customize-snapshot-manager.php#L420-L449 104 add_filter( 'customize_dynamic_setting_args', array( $this, 'filter_customize_dynamic_setting_args' ), 10, 2 ); 105 add_action( 'widgets_init', array( $this, 'register_settings' ), 95 ); 106 add_action( 'customize_register', array( $this, 'schedule_customize_register' ), 1 ); 107 108 // Skip remaining hooks when the user can't manage widgets anyway. 109 if ( ! current_user_can( 'edit_theme_options' ) ) { 110 return; 111 } 112 113 add_action( 'wp_loaded', array( $this, 'override_sidebars_widgets_for_theme_switch' ) ); 114 add_action( 'customize_controls_init', array( $this, 'customize_controls_init' ) ); 115 add_action( 'customize_controls_enqueue_scripts', array( $this, 'enqueue_scripts' ) ); 116 add_action( 'customize_controls_print_styles', array( $this, 'print_styles' ) ); 117 add_action( 'customize_controls_print_scripts', array( $this, 'print_scripts' ) ); 118 add_action( 'customize_controls_print_footer_scripts', array( $this, 'print_footer_scripts' ) ); 119 add_action( 'customize_controls_print_footer_scripts', array( $this, 'output_widget_control_templates' ) ); 120 add_action( 'customize_preview_init', array( $this, 'customize_preview_init' ) ); 121 add_filter( 'customize_refresh_nonces', array( $this, 'refresh_nonces' ) ); 122 add_filter( 'should_load_block_editor_scripts_and_styles', array( $this, 'should_load_block_editor_scripts_and_styles' ) ); 123 124 add_action( 'dynamic_sidebar', array( $this, 'tally_rendered_widgets' ) ); 125 add_filter( 'is_active_sidebar', array( $this, 'tally_sidebars_via_is_active_sidebar_calls' ), 10, 2 ); 126 add_filter( 'dynamic_sidebar_has_widgets', array( $this, 'tally_sidebars_via_dynamic_sidebar_calls' ), 10, 2 ); 127 128 // Selective Refresh. 129 add_filter( 'customize_dynamic_partial_args', array( $this, 'customize_dynamic_partial_args' ), 10, 2 ); 130 add_action( 'customize_preview_init', array( $this, 'selective_refresh_init' ) ); 131 } 132 133 /** 134 * List whether each registered widget can be use selective refresh. 135 * 136 * If the theme does not support the customize-selective-refresh-widgets feature, 137 * then this will always return an empty array. 138 * 139 * @since 4.5.0 140 * 141 * @global WP_Widget_Factory $wp_widget_factory 142 * 143 * @return array Mapping of id_base to support. If theme doesn't support 144 * selective refresh, an empty array is returned. 145 */ 146 public function get_selective_refreshable_widgets() { 147 global $wp_widget_factory; 148 if ( ! current_theme_supports( 'customize-selective-refresh-widgets' ) ) { 149 return array(); 150 } 151 if ( ! isset( $this->selective_refreshable_widgets ) ) { 152 $this->selective_refreshable_widgets = array(); 153 foreach ( $wp_widget_factory->widgets as $wp_widget ) { 154 $this->selective_refreshable_widgets[ $wp_widget->id_base ] = ! empty( $wp_widget->widget_options['customize_selective_refresh'] ); 155 } 156 } 157 return $this->selective_refreshable_widgets; 158 } 159 160 /** 161 * Determines if a widget supports selective refresh. 162 * 163 * @since 4.5.0 164 * 165 * @param string $id_base Widget ID Base. 166 * @return bool Whether the widget can be selective refreshed. 167 */ 168 public function is_widget_selective_refreshable( $id_base ) { 169 $selective_refreshable_widgets = $this->get_selective_refreshable_widgets(); 170 return ! empty( $selective_refreshable_widgets[ $id_base ] ); 171 } 172 173 /** 174 * Retrieves the widget setting type given a setting ID. 175 * 176 * @since 4.2.0 177 * 178 * @param string $setting_id Setting ID. 179 * @return string|void Setting type. 180 */ 181 protected function get_setting_type( $setting_id ) { 182 static $cache = array(); 183 if ( isset( $cache[ $setting_id ] ) ) { 184 return $cache[ $setting_id ]; 185 } 186 foreach ( $this->setting_id_patterns as $type => $pattern ) { 187 if ( preg_match( $pattern, $setting_id ) ) { 188 $cache[ $setting_id ] = $type; 189 return $type; 190 } 191 } 192 } 193 194 /** 195 * Inspects the incoming customized data for any widget settings, and dynamically adds 196 * them up-front so widgets will be initialized properly. 197 * 198 * @since 4.2.0 199 */ 200 public function register_settings() { 201 $widget_setting_ids = array(); 202 $incoming_setting_ids = array_keys( $this->manager->unsanitized_post_values() ); 203 foreach ( $incoming_setting_ids as $setting_id ) { 204 if ( ! is_null( $this->get_setting_type( $setting_id ) ) ) { 205 $widget_setting_ids[] = $setting_id; 206 } 207 } 208 if ( $this->manager->doing_ajax( 'update-widget' ) && isset( $_REQUEST['widget-id'] ) ) { 209 $widget_setting_ids[] = $this->get_setting_id( wp_unslash( $_REQUEST['widget-id'] ) ); 210 } 211 212 $settings = $this->manager->add_dynamic_settings( array_unique( $widget_setting_ids ) ); 213 214 if ( $this->manager->settings_previewed() ) { 215 foreach ( $settings as $setting ) { 216 $setting->preview(); 217 } 218 } 219 } 220 221 /** 222 * Determines the arguments for a dynamically-created setting. 223 * 224 * @since 4.2.0 225 * 226 * @param false|array $args The arguments to the WP_Customize_Setting constructor. 227 * @param string $setting_id ID for dynamic setting, usually coming from `$_POST['customized']`. 228 * @return array|false Setting arguments, false otherwise. 229 */ 230 public function filter_customize_dynamic_setting_args( $args, $setting_id ) { 231 if ( $this->get_setting_type( $setting_id ) ) { 232 $args = $this->get_setting_args( $setting_id ); 233 } 234 return $args; 235 } 236 237 /** 238 * Retrieves an unslashed post value or return a default. 239 * 240 * @since 3.9.0 241 * 242 * @param string $name Post value. 243 * @param mixed $default_value Default post value. 244 * @return mixed Unslashed post value or default value. 245 */ 246 protected function get_post_value( $name, $default_value = null ) { 247 if ( ! isset( $_POST[ $name ] ) ) { 248 return $default_value; 249 } 250 251 return wp_unslash( $_POST[ $name ] ); 252 } 253 254 /** 255 * Override sidebars_widgets for theme switch. 256 * 257 * When switching a theme via the Customizer, supply any previously-configured 258 * sidebars_widgets from the target theme as the initial sidebars_widgets 259 * setting. Also store the old theme's existing settings so that they can 260 * be passed along for storing in the sidebars_widgets theme_mod when the 261 * theme gets switched. 262 * 263 * @since 3.9.0 264 * 265 * @global array $sidebars_widgets 266 * @global array $_wp_sidebars_widgets 267 */ 268 public function override_sidebars_widgets_for_theme_switch() { 269 global $sidebars_widgets; 270 271 if ( $this->manager->doing_ajax() || $this->manager->is_theme_active() ) { 272 return; 273 } 274 275 $this->old_sidebars_widgets = wp_get_sidebars_widgets(); 276 add_filter( 'customize_value_old_sidebars_widgets_data', array( $this, 'filter_customize_value_old_sidebars_widgets_data' ) ); 277 $this->manager->set_post_value( 'old_sidebars_widgets_data', $this->old_sidebars_widgets ); // Override any value cached in changeset. 278 279 // retrieve_widgets() looks at the global $sidebars_widgets. 280 $sidebars_widgets = $this->old_sidebars_widgets; 281 $sidebars_widgets = retrieve_widgets( 'customize' ); 282 add_filter( 'option_sidebars_widgets', array( $this, 'filter_option_sidebars_widgets_for_theme_switch' ), 1 ); 283 // Reset global cache var used by wp_get_sidebars_widgets(). 284 unset( $GLOBALS['_wp_sidebars_widgets'] ); 285 } 286 287 /** 288 * Filters old_sidebars_widgets_data Customizer setting. 289 * 290 * When switching themes, filter the Customizer setting old_sidebars_widgets_data 291 * to supply initial $sidebars_widgets before they were overridden by retrieve_widgets(). 292 * The value for old_sidebars_widgets_data gets set in the old theme's sidebars_widgets 293 * theme_mod. 294 * 295 * @since 3.9.0 296 * 297 * @see WP_Customize_Widgets::handle_theme_switch() 298 * 299 * @param array $old_sidebars_widgets 300 * @return array 301 */ 302 public function filter_customize_value_old_sidebars_widgets_data( $old_sidebars_widgets ) { 303 return $this->old_sidebars_widgets; 304 } 305 306 /** 307 * Filters sidebars_widgets option for theme switch. 308 * 309 * When switching themes, the retrieve_widgets() function is run when the Customizer initializes, 310 * and then the new sidebars_widgets here get supplied as the default value for the sidebars_widgets 311 * option. 312 * 313 * @since 3.9.0 314 * 315 * @see WP_Customize_Widgets::handle_theme_switch() 316 * @global array $sidebars_widgets 317 * 318 * @param array $sidebars_widgets 319 * @return array 320 */ 321 public function filter_option_sidebars_widgets_for_theme_switch( $sidebars_widgets ) { 322 $sidebars_widgets = $GLOBALS['sidebars_widgets']; 323 $sidebars_widgets['array_version'] = 3; 324 return $sidebars_widgets; 325 } 326 327 /** 328 * Ensures all widgets get loaded into the Customizer. 329 * 330 * Note: these actions are also fired in wp_ajax_update_widget(). 331 * 332 * @since 3.9.0 333 */ 334 public function customize_controls_init() { 335 /** This action is documented in wp-admin/includes/ajax-actions.php */ 336 do_action( 'load-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores 337 338 /** This action is documented in wp-admin/includes/ajax-actions.php */ 339 do_action( 'widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores 340 341 /** This action is documented in wp-admin/widgets.php */ 342 do_action( 'sidebar_admin_setup' ); 343 } 344 345 /** 346 * Ensures widgets are available for all types of previews. 347 * 348 * When in preview, hook to {@see 'customize_register'} for settings after WordPress is loaded 349 * so that all filters have been initialized (e.g. Widget Visibility). 350 * 351 * @since 3.9.0 352 */ 353 public function schedule_customize_register() { 354 if ( is_admin() ) { 355 $this->customize_register(); 356 } else { 357 add_action( 'wp', array( $this, 'customize_register' ) ); 358 } 359 } 360 361 /** 362 * Registers Customizer settings and controls for all sidebars and widgets. 363 * 364 * @since 3.9.0 365 * 366 * @global array $wp_registered_widgets 367 * @global array $wp_registered_widget_controls 368 * @global array $wp_registered_sidebars 369 */ 370 public function customize_register() { 371 global $wp_registered_widgets, $wp_registered_widget_controls, $wp_registered_sidebars; 372 373 $use_widgets_block_editor = wp_use_widgets_block_editor(); 374 375 add_filter( 'sidebars_widgets', array( $this, 'preview_sidebars_widgets' ), 1 ); 376 377 $sidebars_widgets = array_merge( 378 array( 'wp_inactive_widgets' => array() ), 379 array_fill_keys( array_keys( $wp_registered_sidebars ), array() ), 380 wp_get_sidebars_widgets() 381 ); 382 383 $new_setting_ids = array(); 384 385 /* 386 * Register a setting for all widgets, including those which are active, 387 * inactive, and orphaned since a widget may get suppressed from a sidebar 388 * via a plugin (like Widget Visibility). 389 */ 390 foreach ( array_keys( $wp_registered_widgets ) as $widget_id ) { 391 $setting_id = $this->get_setting_id( $widget_id ); 392 $setting_args = $this->get_setting_args( $setting_id ); 393 if ( ! $this->manager->get_setting( $setting_id ) ) { 394 $this->manager->add_setting( $setting_id, $setting_args ); 395 } 396 $new_setting_ids[] = $setting_id; 397 } 398 399 /* 400 * Add a setting which will be supplied for the theme's sidebars_widgets 401 * theme_mod when the theme is switched. 402 */ 403 if ( ! $this->manager->is_theme_active() ) { 404 $setting_id = 'old_sidebars_widgets_data'; 405 $setting_args = $this->get_setting_args( 406 $setting_id, 407 array( 408 'type' => 'global_variable', 409 'dirty' => true, 410 ) 411 ); 412 $this->manager->add_setting( $setting_id, $setting_args ); 413 } 414 415 $this->manager->add_panel( 416 'widgets', 417 array( 418 'type' => 'widgets', 419 'title' => __( 'Widgets' ), 420 'description' => __( 'Widgets are independent sections of content that can be placed into widgetized areas provided by your theme (commonly called sidebars).' ), 421 'priority' => 110, 422 'active_callback' => array( $this, 'is_panel_active' ), 423 'auto_expand_sole_section' => true, 424 'theme_supports' => 'widgets', 425 ) 426 ); 427 428 foreach ( $sidebars_widgets as $sidebar_id => $sidebar_widget_ids ) { 429 if ( empty( $sidebar_widget_ids ) ) { 430 $sidebar_widget_ids = array(); 431 } 432 433 $is_registered_sidebar = is_registered_sidebar( $sidebar_id ); 434 $is_inactive_widgets = ( 'wp_inactive_widgets' === $sidebar_id ); 435 $is_active_sidebar = ( $is_registered_sidebar && ! $is_inactive_widgets ); 436 437 // Add setting for managing the sidebar's widgets. 438 if ( $is_registered_sidebar || $is_inactive_widgets ) { 439 $setting_id = sprintf( 'sidebars_widgets[%s]', $sidebar_id ); 440 $setting_args = $this->get_setting_args( $setting_id ); 441 if ( ! $this->manager->get_setting( $setting_id ) ) { 442 if ( ! $this->manager->is_theme_active() ) { 443 $setting_args['dirty'] = true; 444 } 445 $this->manager->add_setting( $setting_id, $setting_args ); 446 } 447 $new_setting_ids[] = $setting_id; 448 449 // Add section to contain controls. 450 $section_id = sprintf( 'sidebar-widgets-%s', $sidebar_id ); 451 if ( $is_active_sidebar ) { 452 453 $section_args = array( 454 'title' => $wp_registered_sidebars[ $sidebar_id ]['name'], 455 'priority' => array_search( $sidebar_id, array_keys( $wp_registered_sidebars ), true ), 456 'panel' => 'widgets', 457 'sidebar_id' => $sidebar_id, 458 ); 459 460 if ( $use_widgets_block_editor ) { 461 $section_args['description'] = ''; 462 } else { 463 $section_args['description'] = $wp_registered_sidebars[ $sidebar_id ]['description']; 464 } 465 466 /** 467 * Filters Customizer widget section arguments for a given sidebar. 468 * 469 * @since 3.9.0 470 * 471 * @param array $section_args Array of Customizer widget section arguments. 472 * @param string $section_id Customizer section ID. 473 * @param int|string $sidebar_id Sidebar ID. 474 */ 475 $section_args = apply_filters( 'customizer_widgets_section_args', $section_args, $section_id, $sidebar_id ); 476 477 $section = new WP_Customize_Sidebar_Section( $this->manager, $section_id, $section_args ); 478 $this->manager->add_section( $section ); 479 480 if ( $use_widgets_block_editor ) { 481 $control = new WP_Sidebar_Block_Editor_Control( 482 $this->manager, 483 $setting_id, 484 array( 485 'section' => $section_id, 486 'sidebar_id' => $sidebar_id, 487 'label' => $section_args['title'], 488 'description' => $section_args['description'], 489 ) 490 ); 491 } else { 492 $control = new WP_Widget_Area_Customize_Control( 493 $this->manager, 494 $setting_id, 495 array( 496 'section' => $section_id, 497 'sidebar_id' => $sidebar_id, 498 'priority' => count( $sidebar_widget_ids ), // place 'Add Widget' and 'Reorder' buttons at end. 499 ) 500 ); 501 } 502 503 $this->manager->add_control( $control ); 504 505 $new_setting_ids[] = $setting_id; 506 } 507 } 508 509 if ( ! $use_widgets_block_editor ) { 510 // Add a control for each active widget (located in a sidebar). 511 foreach ( $sidebar_widget_ids as $i => $widget_id ) { 512 513 // Skip widgets that may have gone away due to a plugin being deactivated. 514 if ( ! $is_active_sidebar || ! isset( $wp_registered_widgets[ $widget_id ] ) ) { 515 continue; 516 } 517 518 $registered_widget = $wp_registered_widgets[ $widget_id ]; 519 $setting_id = $this->get_setting_id( $widget_id ); 520 $id_base = $wp_registered_widget_controls[ $widget_id ]['id_base']; 521 522 $control = new WP_Widget_Form_Customize_Control( 523 $this->manager, 524 $setting_id, 525 array( 526 'label' => $registered_widget['name'], 527 'section' => $section_id, 528 'sidebar_id' => $sidebar_id, 529 'widget_id' => $widget_id, 530 'widget_id_base' => $id_base, 531 'priority' => $i, 532 'width' => $wp_registered_widget_controls[ $widget_id ]['width'], 533 'height' => $wp_registered_widget_controls[ $widget_id ]['height'], 534 'is_wide' => $this->is_wide_widget( $widget_id ), 535 ) 536 ); 537 $this->manager->add_control( $control ); 538 } 539 } 540 } 541 542 if ( $this->manager->settings_previewed() ) { 543 foreach ( $new_setting_ids as $new_setting_id ) { 544 $this->manager->get_setting( $new_setting_id )->preview(); 545 } 546 } 547 } 548 549 /** 550 * Determines whether the widgets panel is active, based on whether there are sidebars registered. 551 * 552 * @since 4.4.0 553 * 554 * @see WP_Customize_Panel::$active_callback 555 * 556 * @global array $wp_registered_sidebars 557 * @return bool Active. 558 */ 559 public function is_panel_active() { 560 global $wp_registered_sidebars; 561 return ! empty( $wp_registered_sidebars ); 562 } 563 564 /** 565 * Converts a widget_id into its corresponding Customizer setting ID (option name). 566 * 567 * @since 3.9.0 568 * 569 * @param string $widget_id Widget ID. 570 * @return string Maybe-parsed widget ID. 571 */ 572 public function get_setting_id( $widget_id ) { 573 $parsed_widget_id = $this->parse_widget_id( $widget_id ); 574 $setting_id = sprintf( 'widget_%s', $parsed_widget_id['id_base'] ); 575 576 if ( ! is_null( $parsed_widget_id['number'] ) ) { 577 $setting_id .= sprintf( '[%d]', $parsed_widget_id['number'] ); 578 } 579 return $setting_id; 580 } 581 582 /** 583 * Determines whether the widget is considered "wide". 584 * 585 * Core widgets which may have controls wider than 250, but can still be shown 586 * in the narrow Customizer panel. The RSS and Text widgets in Core, for example, 587 * have widths of 400 and yet they still render fine in the Customizer panel. 588 * 589 * This method will return all Core widgets as being not wide, but this can be 590 * overridden with the {@see 'is_wide_widget_in_customizer'} filter. 591 * 592 * @since 3.9.0 593 * 594 * @global array $wp_registered_widget_controls 595 * 596 * @param string $widget_id Widget ID. 597 * @return bool Whether or not the widget is a "wide" widget. 598 */ 599 public function is_wide_widget( $widget_id ) { 600 global $wp_registered_widget_controls; 601 602 $parsed_widget_id = $this->parse_widget_id( $widget_id ); 603 $width = $wp_registered_widget_controls[ $widget_id ]['width']; 604 $is_core = in_array( $parsed_widget_id['id_base'], $this->core_widget_id_bases, true ); 605 $is_wide = ( $width > 250 && ! $is_core ); 606 607 /** 608 * Filters whether the given widget is considered "wide". 609 * 610 * @since 3.9.0 611 * 612 * @param bool $is_wide Whether the widget is wide, Default false. 613 * @param string $widget_id Widget ID. 614 */ 615 return apply_filters( 'is_wide_widget_in_customizer', $is_wide, $widget_id ); 616 } 617 618 /** 619 * Converts a widget ID into its id_base and number components. 620 * 621 * @since 3.9.0 622 * 623 * @param string $widget_id Widget ID. 624 * @return array Array containing a widget's id_base and number components. 625 */ 626 public function parse_widget_id( $widget_id ) { 627 $parsed = array( 628 'number' => null, 629 'id_base' => null, 630 ); 631 632 if ( preg_match( '/^(.+)-(\d+)$/', $widget_id, $matches ) ) { 633 $parsed['id_base'] = $matches[1]; 634 $parsed['number'] = (int) $matches[2]; 635 } else { 636 // Likely an old single widget. 637 $parsed['id_base'] = $widget_id; 638 } 639 return $parsed; 640 } 641 642 /** 643 * Converts a widget setting ID (option path) to its id_base and number components. 644 * 645 * @since 3.9.0 646 * 647 * @param string $setting_id Widget setting ID. 648 * @return array|WP_Error Array containing a widget's id_base and number components, 649 * or a WP_Error object. 650 */ 651 public function parse_widget_setting_id( $setting_id ) { 652 if ( ! preg_match( '/^(widget_(.+?))(?:\[(\d+)\])?$/', $setting_id, $matches ) ) { 653 return new WP_Error( 'widget_setting_invalid_id' ); 654 } 655 656 $id_base = $matches[2]; 657 $number = isset( $matches[3] ) ? (int) $matches[3] : null; 658 659 return compact( 'id_base', 'number' ); 660 } 661 662 /** 663 * Calls admin_print_styles-widgets.php and admin_print_styles hooks to 664 * allow custom styles from plugins. 665 * 666 * @since 3.9.0 667 */ 668 public function print_styles() { 669 /** This action is documented in wp-admin/admin-header.php */ 670 do_action( 'admin_print_styles-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores 671 672 /** This action is documented in wp-admin/admin-header.php */ 673 do_action( 'admin_print_styles' ); 674 } 675 676 /** 677 * Calls admin_print_scripts-widgets.php and admin_print_scripts hooks to 678 * allow custom scripts from plugins. 679 * 680 * @since 3.9.0 681 */ 682 public function print_scripts() { 683 /** This action is documented in wp-admin/admin-header.php */ 684 do_action( 'admin_print_scripts-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores 685 686 /** This action is documented in wp-admin/admin-header.php */ 687 do_action( 'admin_print_scripts' ); 688 } 689 690 /** 691 * Enqueues scripts and styles for Customizer panel and export data to JavaScript. 692 * 693 * @since 3.9.0 694 * 695 * @global WP_Scripts $wp_scripts 696 * @global array $wp_registered_sidebars 697 * @global array $wp_registered_widgets 698 */ 699 public function enqueue_scripts() { 700 global $wp_scripts, $wp_registered_sidebars, $wp_registered_widgets; 701 702 wp_enqueue_style( 'customize-widgets' ); 703 wp_enqueue_script( 'customize-widgets' ); 704 705 /** This action is documented in wp-admin/admin-header.php */ 706 do_action( 'admin_enqueue_scripts', 'widgets.php' ); 707 708 /* 709 * Export available widgets with control_tpl removed from model 710 * since plugins need templates to be in the DOM. 711 */ 712 $available_widgets = array(); 713 714 foreach ( $this->get_available_widgets() as $available_widget ) { 715 unset( $available_widget['control_tpl'] ); 716 $available_widgets[] = $available_widget; 717 } 718 719 $widget_reorder_nav_tpl = sprintf( 720 '<div class="widget-reorder-nav"><span class="move-widget" tabindex="0">%1$s</span><span class="move-widget-down" tabindex="0">%2$s</span><span class="move-widget-up" tabindex="0">%3$s</span></div>', 721 __( 'Move to another area…' ), 722 __( 'Move down' ), 723 __( 'Move up' ) 724 ); 725 726 $move_widget_area_tpl = str_replace( 727 array( '{description}', '{btn}' ), 728 array( 729 __( 'Select an area to move this widget into:' ), 730 _x( 'Move', 'Move widget' ), 731 ), 732 '<div class="move-widget-area"> 733 <p class="description">{description}</p> 734 <ul class="widget-area-select"> 735 <% _.each( sidebars, function ( sidebar ){ %> 736 <li class="" data-id="<%- sidebar.id %>" title="<%- sidebar.description %>" tabindex="0"><%- sidebar.name %></li> 737 <% }); %> 738 </ul> 739 <div class="move-widget-actions"> 740 <button class="move-widget-btn button" type="button">{btn}</button> 741 </div> 742 </div>' 743 ); 744 745 /* 746 * Gather all strings in PHP that may be needed by JS on the client. 747 * Once JS i18n is implemented (in #20491), this can be removed. 748 */ 749 $some_non_rendered_areas_messages = array(); 750 $some_non_rendered_areas_messages[1] = html_entity_decode( 751 __( 'Your theme has 1 other widget area, but this particular page does not display it.' ), 752 ENT_QUOTES, 753 get_bloginfo( 'charset' ) 754 ); 755 $registered_sidebar_count = count( $wp_registered_sidebars ); 756 for ( $non_rendered_count = 2; $non_rendered_count < $registered_sidebar_count; $non_rendered_count++ ) { 757 $some_non_rendered_areas_messages[ $non_rendered_count ] = html_entity_decode( 758 sprintf( 759 /* translators: %s: The number of other widget areas registered but not rendered. */ 760 _n( 761 'Your theme has %s other widget area, but this particular page does not display it.', 762 'Your theme has %s other widget areas, but this particular page does not display them.', 763 $non_rendered_count 764 ), 765 number_format_i18n( $non_rendered_count ) 766 ), 767 ENT_QUOTES, 768 get_bloginfo( 'charset' ) 769 ); 770 } 771 772 if ( 1 === $registered_sidebar_count ) { 773 $no_areas_shown_message = html_entity_decode( 774 sprintf( 775 __( 'Your theme has 1 widget area, but this particular page does not display it.' ) 776 ), 777 ENT_QUOTES, 778 get_bloginfo( 'charset' ) 779 ); 780 } else { 781 $no_areas_shown_message = html_entity_decode( 782 sprintf( 783 /* translators: %s: The total number of widget areas registered. */ 784 _n( 785 'Your theme has %s widget area, but this particular page does not display it.', 786 'Your theme has %s widget areas, but this particular page does not display them.', 787 $registered_sidebar_count 788 ), 789 number_format_i18n( $registered_sidebar_count ) 790 ), 791 ENT_QUOTES, 792 get_bloginfo( 'charset' ) 793 ); 794 } 795 796 $settings = array( 797 'registeredSidebars' => array_values( $wp_registered_sidebars ), 798 'registeredWidgets' => $wp_registered_widgets, 799 'availableWidgets' => $available_widgets, // @todo Merge this with registered_widgets. 800 'l10n' => array( 801 'saveBtnLabel' => __( 'Apply' ), 802 'saveBtnTooltip' => __( 'Save and preview changes before publishing them.' ), 803 'removeBtnLabel' => __( 'Remove' ), 804 'removeBtnTooltip' => __( 'Keep widget settings and move it to the inactive widgets' ), 805 'error' => __( 'An error has occurred. Please reload the page and try again.' ), 806 'widgetMovedUp' => __( 'Widget moved up' ), 807 'widgetMovedDown' => __( 'Widget moved down' ), 808 'navigatePreview' => __( 'You can navigate to other pages on your site while using the Customizer to view and edit the widgets displayed on those pages.' ), 809 'someAreasShown' => $some_non_rendered_areas_messages, 810 'noAreasShown' => $no_areas_shown_message, 811 'reorderModeOn' => __( 'Reorder mode enabled' ), 812 'reorderModeOff' => __( 'Reorder mode closed' ), 813 'reorderLabelOn' => esc_attr__( 'Reorder widgets' ), 814 /* translators: %d: The number of widgets found. */ 815 'widgetsFound' => __( 'Number of widgets found: %d' ), 816 'noWidgetsFound' => __( 'No widgets found.' ), 817 ), 818 'tpl' => array( 819 'widgetReorderNav' => $widget_reorder_nav_tpl, 820 'moveWidgetArea' => $move_widget_area_tpl, 821 ), 822 'selectiveRefreshableWidgets' => $this->get_selective_refreshable_widgets(), 823 ); 824 825 foreach ( $settings['registeredWidgets'] as &$registered_widget ) { 826 unset( $registered_widget['callback'] ); // May not be JSON-serializable. 827 } 828 829 $wp_scripts->add_data( 830 'customize-widgets', 831 'data', 832 sprintf( 'var _wpCustomizeWidgetsSettings = %s;', wp_json_encode( $settings ) ) 833 ); 834 835 /* 836 * TODO: Update 'wp-customize-widgets' to not rely so much on things in 837 * 'customize-widgets'. This will let us skip most of the above and not 838 * enqueue 'customize-widgets' which saves bytes. 839 */ 840 841 if ( wp_use_widgets_block_editor() ) { 842 $block_editor_context = new WP_Block_Editor_Context( 843 array( 844 'name' => 'core/customize-widgets', 845 ) 846 ); 847 848 $editor_settings = get_block_editor_settings( 849 get_legacy_widget_block_editor_settings(), 850 $block_editor_context 851 ); 852 853 wp_add_inline_script( 854 'wp-customize-widgets', 855 sprintf( 856 'wp.domReady( function() { 857 wp.customizeWidgets.initialize( "widgets-customizer", %s ); 858 } );', 859 wp_json_encode( $editor_settings ) 860 ) 861 ); 862 863 // Preload server-registered block schemas. 864 wp_add_inline_script( 865 'wp-blocks', 866 'wp.blocks.unstable__bootstrapServerSideBlockDefinitions(' . wp_json_encode( get_block_editor_server_block_settings() ) . ');' 867 ); 868 869 // Preload server-registered block bindings sources. 870 $registered_sources = get_all_registered_block_bindings_sources(); 871 if ( ! empty( $registered_sources ) ) { 872 $filtered_sources = array(); 873 foreach ( $registered_sources as $source ) { 874 $filtered_sources[] = array( 875 'name' => $source->name, 876 'label' => $source->label, 877 'usesContext' => $source->uses_context, 878 ); 879 } 880 $script = sprintf( 'for ( const source of %s ) { wp.blocks.registerBlockBindingsSource( source ); }', wp_json_encode( $filtered_sources ) ); 881 wp_add_inline_script( 882 'wp-blocks', 883 $script 884 ); 885 } 886 887 wp_add_inline_script( 888 'wp-blocks', 889 sprintf( 'wp.blocks.setCategories( %s );', wp_json_encode( get_block_categories( $block_editor_context ) ) ), 890 'after' 891 ); 892 893 wp_enqueue_script( 'wp-customize-widgets' ); 894 wp_enqueue_style( 'wp-customize-widgets' ); 895 896 /** This action is documented in edit-form-blocks.php */ 897 do_action( 'enqueue_block_editor_assets' ); 898 } 899 } 900 901 /** 902 * Renders the widget form control templates into the DOM. 903 * 904 * @since 3.9.0 905 */ 906 public function output_widget_control_templates() { 907 ?> 908 <div id="widgets-left"><!-- compatibility with JS which looks for widget templates here --> 909 <div id="available-widgets"> 910 <div class="customize-section-title"> 911 <button class="customize-section-back" tabindex="-1"> 912 <span class="screen-reader-text"> 913 <?php 914 /* translators: Hidden accessibility text. */ 915 _e( 'Back' ); 916 ?> 917 </span> 918 </button> 919 <h3> 920 <span class="customize-action"> 921 <?php 922 /* translators: ▸ is the unicode right-pointing triangle. %s: Section title in the Customizer. */ 923 printf( __( 'Customizing ▸ %s' ), esc_html( $this->manager->get_panel( 'widgets' )->title ) ); 924 ?> 925 </span> 926 <?php _e( 'Add a Widget' ); ?> 927 </h3> 928 </div> 929 <div id="available-widgets-filter"> 930 <label for="widgets-search"> 931 <?php 932 /* translators: Hidden accessibility text. */ 933 _e( 'Search Widgets' ); 934 ?> 935 </label> 936 <input type="text" id="widgets-search" aria-describedby="widgets-search-desc" /> 937 <div class="search-icon" aria-hidden="true"></div> 938 <button type="button" class="clear-results"><span class="screen-reader-text"> 939 <?php 940 /* translators: Hidden accessibility text. */ 941 _e( 'Clear Results' ); 942 ?> 943 </span></button> 944 <p class="screen-reader-text" id="widgets-search-desc"> 945 <?php 946 /* translators: Hidden accessibility text. */ 947 _e( 'The search results will be updated as you type.' ); 948 ?> 949 </p> 950 </div> 951 <div id="available-widgets-list"> 952 <?php foreach ( $this->get_available_widgets() as $available_widget ) : ?> 953 <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"> 954 <?php echo $available_widget['control_tpl']; ?> 955 </div> 956 <?php endforeach; ?> 957 <p class="no-widgets-found-message"><?php _e( 'No widgets found.' ); ?></p> 958 </div><!-- #available-widgets-list --> 959 </div><!-- #available-widgets --> 960 </div><!-- #widgets-left --> 961 <?php 962 } 963 964 /** 965 * Calls admin_print_footer_scripts and admin_print_scripts hooks to 966 * allow custom scripts from plugins. 967 * 968 * @since 3.9.0 969 */ 970 public function print_footer_scripts() { 971 /** This action is documented in wp-admin/admin-footer.php */ 972 do_action( 'admin_print_footer_scripts-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores 973 974 /** This action is documented in wp-admin/admin-footer.php */ 975 do_action( 'admin_print_footer_scripts' ); 976 977 /** This action is documented in wp-admin/admin-footer.php */ 978 do_action( 'admin_footer-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores 979 } 980 981 /** 982 * Retrieves common arguments to supply when constructing a Customizer setting. 983 * 984 * @since 3.9.0 985 * 986 * @param string $id Widget setting ID. 987 * @param array $overrides Array of setting overrides. 988 * @return array Possibly modified setting arguments. 989 */ 990 public function get_setting_args( $id, $overrides = array() ) { 991 $args = array( 992 'type' => 'option', 993 'capability' => 'edit_theme_options', 994 'default' => array(), 995 ); 996 997 if ( preg_match( $this->setting_id_patterns['sidebar_widgets'], $id, $matches ) ) { 998 $args['sanitize_callback'] = array( $this, 'sanitize_sidebar_widgets' ); 999 $args['sanitize_js_callback'] = array( $this, 'sanitize_sidebar_widgets_js_instance' ); 1000 $args['transport'] = current_theme_supports( 'customize-selective-refresh-widgets' ) ? 'postMessage' : 'refresh'; 1001 } elseif ( preg_match( $this->setting_id_patterns['widget_instance'], $id, $matches ) ) { 1002 $id_base = $matches['id_base']; 1003 $args['sanitize_callback'] = function ( $value ) use ( $id_base ) { 1004 return $this->sanitize_widget_instance( $value, $id_base ); 1005 }; 1006 $args['sanitize_js_callback'] = function ( $value ) use ( $id_base ) { 1007 return $this->sanitize_widget_js_instance( $value, $id_base ); 1008 }; 1009 $args['transport'] = $this->is_widget_selective_refreshable( $matches['id_base'] ) ? 'postMessage' : 'refresh'; 1010 } 1011 1012 $args = array_merge( $args, $overrides ); 1013 1014 /** 1015 * Filters the common arguments supplied when constructing a Customizer setting. 1016 * 1017 * @since 3.9.0 1018 * 1019 * @see WP_Customize_Setting 1020 * 1021 * @param array $args Array of Customizer setting arguments. 1022 * @param string $id Widget setting ID. 1023 */ 1024 return apply_filters( 'widget_customizer_setting_args', $args, $id ); 1025 } 1026 1027 /** 1028 * Ensures sidebar widget arrays only ever contain widget IDS. 1029 * 1030 * Used as the 'sanitize_callback' for each $sidebars_widgets setting. 1031 * 1032 * @since 3.9.0 1033 * 1034 * @param string[] $widget_ids Array of widget IDs. 1035 * @return string[] Array of sanitized widget IDs. 1036 */ 1037 public function sanitize_sidebar_widgets( $widget_ids ) { 1038 $widget_ids = array_map( 'strval', (array) $widget_ids ); 1039 $sanitized_widget_ids = array(); 1040 foreach ( $widget_ids as $widget_id ) { 1041 $sanitized_widget_ids[] = preg_replace( '/[^a-z0-9_\-]/', '', $widget_id ); 1042 } 1043 return $sanitized_widget_ids; 1044 } 1045 1046 /** 1047 * Builds up an index of all available widgets for use in Backbone models. 1048 * 1049 * @since 3.9.0 1050 * 1051 * @global array $wp_registered_widgets 1052 * @global array $wp_registered_widget_controls 1053 * 1054 * @see wp_list_widgets() 1055 * 1056 * @return array List of available widgets. 1057 */ 1058 public function get_available_widgets() { 1059 static $available_widgets = array(); 1060 if ( ! empty( $available_widgets ) ) { 1061 return $available_widgets; 1062 } 1063 1064 global $wp_registered_widgets, $wp_registered_widget_controls; 1065 require_once ABSPATH . 'wp-admin/includes/widgets.php'; // For next_widget_id_number(). 1066 1067 $sort = $wp_registered_widgets; 1068 usort( $sort, array( $this, '_sort_name_callback' ) ); 1069 $done = array(); 1070 1071 foreach ( $sort as $widget ) { 1072 if ( in_array( $widget['callback'], $done, true ) ) { // We already showed this multi-widget. 1073 continue; 1074 } 1075 1076 $sidebar = is_active_widget( $widget['callback'], $widget['id'], false, false ); 1077 $done[] = $widget['callback']; 1078 1079 if ( ! isset( $widget['params'][0] ) ) { 1080 $widget['params'][0] = array(); 1081 } 1082 1083 $available_widget = $widget; 1084 unset( $available_widget['callback'] ); // Not serializable to JSON. 1085 1086 $args = array( 1087 'widget_id' => $widget['id'], 1088 'widget_name' => $widget['name'], 1089 '_display' => 'template', 1090 ); 1091 1092 $is_disabled = false; 1093 $is_multi_widget = ( isset( $wp_registered_widget_controls[ $widget['id'] ]['id_base'] ) && isset( $widget['params'][0]['number'] ) ); 1094 if ( $is_multi_widget ) { 1095 $id_base = $wp_registered_widget_controls[ $widget['id'] ]['id_base']; 1096 $args['_temp_id'] = "$id_base-__i__"; 1097 $args['_multi_num'] = next_widget_id_number( $id_base ); 1098 $args['_add'] = 'multi'; 1099 } else { 1100 $args['_add'] = 'single'; 1101 1102 if ( $sidebar && 'wp_inactive_widgets' !== $sidebar ) { 1103 $is_disabled = true; 1104 } 1105 $id_base = $widget['id']; 1106 } 1107 1108 $list_widget_controls_args = wp_list_widget_controls_dynamic_sidebar( 1109 array( 1110 0 => $args, 1111 1 => $widget['params'][0], 1112 ) 1113 ); 1114 $control_tpl = $this->get_widget_control( $list_widget_controls_args ); 1115 1116 // The properties here are mapped to the Backbone Widget model. 1117 $available_widget = array_merge( 1118 $available_widget, 1119 array( 1120 'temp_id' => isset( $args['_temp_id'] ) ? $args['_temp_id'] : null, 1121 'is_multi' => $is_multi_widget, 1122 'control_tpl' => $control_tpl, 1123 'multi_number' => ( 'multi' === $args['_add'] ) ? $args['_multi_num'] : false, 1124 'is_disabled' => $is_disabled, 1125 'id_base' => $id_base, 1126 'transport' => $this->is_widget_selective_refreshable( $id_base ) ? 'postMessage' : 'refresh', 1127 'width' => $wp_registered_widget_controls[ $widget['id'] ]['width'], 1128 'height' => $wp_registered_widget_controls[ $widget['id'] ]['height'], 1129 'is_wide' => $this->is_wide_widget( $widget['id'] ), 1130 ) 1131 ); 1132 1133 $available_widgets[] = $available_widget; 1134 } 1135 1136 return $available_widgets; 1137 } 1138 1139 /** 1140 * Naturally orders available widgets by name. 1141 * 1142 * @since 3.9.0 1143 * 1144 * @param array $widget_a The first widget to compare. 1145 * @param array $widget_b The second widget to compare. 1146 * @return int Reorder position for the current widget comparison. 1147 */ 1148 protected function _sort_name_callback( $widget_a, $widget_b ) { 1149 return strnatcasecmp( $widget_a['name'], $widget_b['name'] ); 1150 } 1151 1152 /** 1153 * Retrieves the widget control markup. 1154 * 1155 * @since 3.9.0 1156 * 1157 * @param array $args Widget control arguments. 1158 * @return string Widget control form HTML markup. 1159 */ 1160 public function get_widget_control( $args ) { 1161 $args[0]['before_form'] = '<div class="form">'; 1162 $args[0]['after_form'] = '</div><!-- .form -->'; 1163 $args[0]['before_widget_content'] = '<div class="widget-content">'; 1164 $args[0]['after_widget_content'] = '</div><!-- .widget-content -->'; 1165 ob_start(); 1166 wp_widget_control( ...$args ); 1167 $control_tpl = ob_get_clean(); 1168 return $control_tpl; 1169 } 1170 1171 /** 1172 * Retrieves the widget control markup parts. 1173 * 1174 * @since 4.4.0 1175 * 1176 * @param array $args Widget control arguments. 1177 * @return array { 1178 * @type string $control Markup for widget control wrapping form. 1179 * @type string $content The contents of the widget form itself. 1180 * } 1181 */ 1182 public function get_widget_control_parts( $args ) { 1183 $args[0]['before_widget_content'] = '<div class="widget-content">'; 1184 $args[0]['after_widget_content'] = '</div><!-- .widget-content -->'; 1185 $control_markup = $this->get_widget_control( $args ); 1186 1187 $content_start_pos = strpos( $control_markup, $args[0]['before_widget_content'] ); 1188 $content_end_pos = strrpos( $control_markup, $args[0]['after_widget_content'] ); 1189 1190 $control = substr( $control_markup, 0, $content_start_pos + strlen( $args[0]['before_widget_content'] ) ); 1191 $control .= substr( $control_markup, $content_end_pos ); 1192 $content = trim( 1193 substr( 1194 $control_markup, 1195 $content_start_pos + strlen( $args[0]['before_widget_content'] ), 1196 $content_end_pos - $content_start_pos - strlen( $args[0]['before_widget_content'] ) 1197 ) 1198 ); 1199 1200 return compact( 'control', 'content' ); 1201 } 1202 1203 /** 1204 * Adds hooks for the Customizer preview. 1205 * 1206 * @since 3.9.0 1207 */ 1208 public function customize_preview_init() { 1209 add_action( 'wp_enqueue_scripts', array( $this, 'customize_preview_enqueue' ) ); 1210 add_action( 'wp_print_styles', array( $this, 'print_preview_css' ), 1 ); 1211 add_action( 'wp_footer', array( $this, 'export_preview_data' ), 20 ); 1212 } 1213 1214 /** 1215 * Refreshes the nonce for widget updates. 1216 * 1217 * @since 4.2.0 1218 * 1219 * @param array $nonces Array of nonces. 1220 * @return array Array of nonces. 1221 */ 1222 public function refresh_nonces( $nonces ) { 1223 $nonces['update-widget'] = wp_create_nonce( 'update-widget' ); 1224 return $nonces; 1225 } 1226 1227 /** 1228 * Tells the script loader to load the scripts and styles of custom blocks 1229 * if the widgets block editor is enabled. 1230 * 1231 * @since 5.8.0 1232 * 1233 * @param bool $is_block_editor_screen Current decision about loading block assets. 1234 * @return bool Filtered decision about loading block assets. 1235 */ 1236 public function should_load_block_editor_scripts_and_styles( $is_block_editor_screen ) { 1237 if ( wp_use_widgets_block_editor() ) { 1238 return true; 1239 } 1240 1241 return $is_block_editor_screen; 1242 } 1243 1244 /** 1245 * When previewing, ensures the proper previewing widgets are used. 1246 * 1247 * Because wp_get_sidebars_widgets() gets called early at {@see 'init' } (via 1248 * wp_convert_widget_settings()) and can set global variable `$_wp_sidebars_widgets` 1249 * to the value of `get_option( 'sidebars_widgets' )` before the Customizer preview 1250 * filter is added, it has to be reset after the filter has been added. 1251 * 1252 * @since 3.9.0 1253 * 1254 * @param array $sidebars_widgets List of widgets for the current sidebar. 1255 * @return array 1256 */ 1257 public function preview_sidebars_widgets( $sidebars_widgets ) { 1258 $sidebars_widgets = get_option( 'sidebars_widgets', array() ); 1259 1260 unset( $sidebars_widgets['array_version'] ); 1261 return $sidebars_widgets; 1262 } 1263 1264 /** 1265 * Enqueues scripts for the Customizer preview. 1266 * 1267 * @since 3.9.0 1268 */ 1269 public function customize_preview_enqueue() { 1270 wp_enqueue_script( 'customize-preview-widgets' ); 1271 } 1272 1273 /** 1274 * Inserts default style for highlighted widget at early point so theme 1275 * stylesheet can override. 1276 * 1277 * @since 3.9.0 1278 */ 1279 public function print_preview_css() { 1280 ?> 1281 <style> 1282 .widget-customizer-highlighted-widget { 1283 outline: none; 1284 -webkit-box-shadow: 0 0 2px rgba(30, 140, 190, 0.8); 1285 box-shadow: 0 0 2px rgba(30, 140, 190, 0.8); 1286 position: relative; 1287 z-index: 1; 1288 } 1289 </style> 1290 <?php 1291 } 1292 1293 /** 1294 * Communicates the sidebars that appeared on the page at the very end of the page, 1295 * and at the very end of the wp_footer, 1296 * 1297 * @since 3.9.0 1298 * 1299 * @global array $wp_registered_sidebars 1300 * @global array $wp_registered_widgets 1301 */ 1302 public function export_preview_data() { 1303 global $wp_registered_sidebars, $wp_registered_widgets; 1304 1305 $switched_locale = switch_to_user_locale( get_current_user_id() ); 1306 1307 $l10n = array( 1308 'widgetTooltip' => __( 'Shift-click to edit this widget.' ), 1309 ); 1310 1311 if ( $switched_locale ) { 1312 restore_previous_locale(); 1313 } 1314 1315 $rendered_sidebars = array_filter( $this->rendered_sidebars ); 1316 $rendered_widgets = array_filter( $this->rendered_widgets ); 1317 1318 // Prepare Customizer settings to pass to JavaScript. 1319 $settings = array( 1320 'renderedSidebars' => array_fill_keys( array_keys( $rendered_sidebars ), true ), 1321 'renderedWidgets' => array_fill_keys( array_keys( $rendered_widgets ), true ), 1322 'registeredSidebars' => array_values( $wp_registered_sidebars ), 1323 'registeredWidgets' => $wp_registered_widgets, 1324 'l10n' => $l10n, 1325 'selectiveRefreshableWidgets' => $this->get_selective_refreshable_widgets(), 1326 ); 1327 1328 foreach ( $settings['registeredWidgets'] as &$registered_widget ) { 1329 unset( $registered_widget['callback'] ); // May not be JSON-serializable. 1330 } 1331 wp_print_inline_script_tag( 1332 sprintf( 'var _wpWidgetCustomizerPreviewSettings = %s;', wp_json_encode( $settings ) ) 1333 ); 1334 } 1335 1336 /** 1337 * Tracks the widgets that were rendered. 1338 * 1339 * @since 3.9.0 1340 * 1341 * @param array $widget Rendered widget to tally. 1342 */ 1343 public function tally_rendered_widgets( $widget ) { 1344 $this->rendered_widgets[ $widget['id'] ] = true; 1345 } 1346 1347 /** 1348 * Determine if a widget is rendered on the page. 1349 * 1350 * @since 4.0.0 1351 * 1352 * @param string $widget_id Widget ID to check. 1353 * @return bool Whether the widget is rendered. 1354 */ 1355 public function is_widget_rendered( $widget_id ) { 1356 return ! empty( $this->rendered_widgets[ $widget_id ] ); 1357 } 1358 1359 /** 1360 * Determines if a sidebar is rendered on the page. 1361 * 1362 * @since 4.0.0 1363 * 1364 * @param string $sidebar_id Sidebar ID to check. 1365 * @return bool Whether the sidebar is rendered. 1366 */ 1367 public function is_sidebar_rendered( $sidebar_id ) { 1368 return ! empty( $this->rendered_sidebars[ $sidebar_id ] ); 1369 } 1370 1371 /** 1372 * Tallies the sidebars rendered via is_active_sidebar(). 1373 * 1374 * Keep track of the times that is_active_sidebar() is called in the template, 1375 * and assume that this means that the sidebar would be rendered on the template 1376 * if there were widgets populating it. 1377 * 1378 * @since 3.9.0 1379 * 1380 * @param bool $is_active Whether the sidebar is active. 1381 * @param string $sidebar_id Sidebar ID. 1382 * @return bool Whether the sidebar is active. 1383 */ 1384 public function tally_sidebars_via_is_active_sidebar_calls( $is_active, $sidebar_id ) { 1385 if ( is_registered_sidebar( $sidebar_id ) ) { 1386 $this->rendered_sidebars[ $sidebar_id ] = true; 1387 } 1388 1389 /* 1390 * We may need to force this to true, and also force-true the value 1391 * for 'dynamic_sidebar_has_widgets' if we want to ensure that there 1392 * is an area to drop widgets into, if the sidebar is empty. 1393 */ 1394 return $is_active; 1395 } 1396 1397 /** 1398 * Tallies the sidebars rendered via dynamic_sidebar(). 1399 * 1400 * Keep track of the times that dynamic_sidebar() is called in the template, 1401 * and assume this means the sidebar would be rendered on the template if 1402 * there were widgets populating it. 1403 * 1404 * @since 3.9.0 1405 * 1406 * @param bool $has_widgets Whether the current sidebar has widgets. 1407 * @param string $sidebar_id Sidebar ID. 1408 * @return bool Whether the current sidebar has widgets. 1409 */ 1410 public function tally_sidebars_via_dynamic_sidebar_calls( $has_widgets, $sidebar_id ) { 1411 if ( is_registered_sidebar( $sidebar_id ) ) { 1412 $this->rendered_sidebars[ $sidebar_id ] = true; 1413 } 1414 1415 /* 1416 * We may need to force this to true, and also force-true the value 1417 * for 'is_active_sidebar' if we want to ensure there is an area to 1418 * drop widgets into, if the sidebar is empty. 1419 */ 1420 return $has_widgets; 1421 } 1422 1423 /** 1424 * Retrieves MAC for a serialized widget instance string. 1425 * 1426 * Allows values posted back from JS to be rejected if any tampering of the 1427 * data has occurred. 1428 * 1429 * @since 3.9.0 1430 * 1431 * @param string $serialized_instance Widget instance. 1432 * @return string MAC for serialized widget instance. 1433 */ 1434 protected function get_instance_hash_key( $serialized_instance ) { 1435 return wp_hash( $serialized_instance ); 1436 } 1437 1438 /** 1439 * Sanitizes a widget instance. 1440 * 1441 * Unserialize the JS-instance for storing in the options. It's important that this filter 1442 * only get applied to an instance *once*. 1443 * 1444 * @since 3.9.0 1445 * @since 5.8.0 Added the `$id_base` parameter. 1446 * 1447 * @global WP_Widget_Factory $wp_widget_factory 1448 * 1449 * @param array $value Widget instance to sanitize. 1450 * @param string $id_base Optional. Base of the ID of the widget being sanitized. Default null. 1451 * @return array|void Sanitized widget instance. 1452 */ 1453 public function sanitize_widget_instance( $value, $id_base = null ) { 1454 global $wp_widget_factory; 1455 1456 if ( array() === $value ) { 1457 return $value; 1458 } 1459 1460 if ( isset( $value['raw_instance'] ) && $id_base && wp_use_widgets_block_editor() ) { 1461 $widget_object = $wp_widget_factory->get_widget_object( $id_base ); 1462 if ( ! empty( $widget_object->widget_options['show_instance_in_rest'] ) ) { 1463 if ( 'block' === $id_base && ! current_user_can( 'unfiltered_html' ) ) { 1464 /* 1465 * The content of the 'block' widget is not filtered on the fly while editing. 1466 * Filter the content here to prevent vulnerabilities. 1467 */ 1468 $value['raw_instance']['content'] = wp_kses_post( $value['raw_instance']['content'] ); 1469 } 1470 1471 return $value['raw_instance']; 1472 } 1473 } 1474 1475 if ( 1476 empty( $value['is_widget_customizer_js_value'] ) || 1477 empty( $value['instance_hash_key'] ) || 1478 empty( $value['encoded_serialized_instance'] ) 1479 ) { 1480 return; 1481 } 1482 1483 $decoded = base64_decode( $value['encoded_serialized_instance'], true ); 1484 if ( false === $decoded ) { 1485 return; 1486 } 1487 1488 if ( ! hash_equals( $this->get_instance_hash_key( $decoded ), $value['instance_hash_key'] ) ) { 1489 return; 1490 } 1491 1492 $instance = unserialize( $decoded ); 1493 if ( false === $instance ) { 1494 return; 1495 } 1496 1497 return $instance; 1498 } 1499 1500 /** 1501 * Converts a widget instance into JSON-representable format. 1502 * 1503 * @since 3.9.0 1504 * @since 5.8.0 Added the `$id_base` parameter. 1505 * 1506 * @global WP_Widget_Factory $wp_widget_factory 1507 * 1508 * @param array $value Widget instance to convert to JSON. 1509 * @param string $id_base Optional. Base of the ID of the widget being sanitized. Default null. 1510 * @return array JSON-converted widget instance. 1511 */ 1512 public function sanitize_widget_js_instance( $value, $id_base = null ) { 1513 global $wp_widget_factory; 1514 1515 if ( empty( $value['is_widget_customizer_js_value'] ) ) { 1516 $serialized = serialize( $value ); 1517 1518 $js_value = array( 1519 'encoded_serialized_instance' => base64_encode( $serialized ), 1520 'title' => empty( $value['title'] ) ? '' : $value['title'], 1521 'is_widget_customizer_js_value' => true, 1522 'instance_hash_key' => $this->get_instance_hash_key( $serialized ), 1523 ); 1524 1525 if ( $id_base && wp_use_widgets_block_editor() ) { 1526 $widget_object = $wp_widget_factory->get_widget_object( $id_base ); 1527 if ( ! empty( $widget_object->widget_options['show_instance_in_rest'] ) ) { 1528 $js_value['raw_instance'] = (object) $value; 1529 } 1530 } 1531 1532 return $js_value; 1533 } 1534 1535 return $value; 1536 } 1537 1538 /** 1539 * Strips out widget IDs for widgets which are no longer registered. 1540 * 1541 * One example where this might happen is when a plugin orphans a widget 1542 * in a sidebar upon deactivation. 1543 * 1544 * @since 3.9.0 1545 * 1546 * @global array $wp_registered_widgets 1547 * 1548 * @param array $widget_ids List of widget IDs. 1549 * @return array Parsed list of widget IDs. 1550 */ 1551 public function sanitize_sidebar_widgets_js_instance( $widget_ids ) { 1552 global $wp_registered_widgets; 1553 $widget_ids = array_values( array_intersect( $widget_ids, array_keys( $wp_registered_widgets ) ) ); 1554 return $widget_ids; 1555 } 1556 1557 /** 1558 * Finds and invokes the widget update and control callbacks. 1559 * 1560 * Requires that `$_POST` be populated with the instance data. 1561 * 1562 * @since 3.9.0 1563 * 1564 * @global array $wp_registered_widget_updates 1565 * @global array $wp_registered_widget_controls 1566 * 1567 * @param string $widget_id Widget ID. 1568 * @return array|WP_Error Array containing the updated widget information. 1569 * A WP_Error object, otherwise. 1570 */ 1571 public function call_widget_update( $widget_id ) { 1572 global $wp_registered_widget_updates, $wp_registered_widget_controls; 1573 1574 $setting_id = $this->get_setting_id( $widget_id ); 1575 1576 /* 1577 * Make sure that other setting changes have previewed since this widget 1578 * may depend on them (e.g. Menus being present for Navigation Menu widget). 1579 */ 1580 if ( ! did_action( 'customize_preview_init' ) ) { 1581 foreach ( $this->manager->settings() as $setting ) { 1582 if ( $setting->id !== $setting_id ) { 1583 $setting->preview(); 1584 } 1585 } 1586 } 1587 1588 $this->start_capturing_option_updates(); 1589 $parsed_id = $this->parse_widget_id( $widget_id ); 1590 $option_name = 'widget_' . $parsed_id['id_base']; 1591 1592 /* 1593 * If a previously-sanitized instance is provided, populate the input vars 1594 * with its values so that the widget update callback will read this instance 1595 */ 1596 $added_input_vars = array(); 1597 if ( ! empty( $_POST['sanitized_widget_setting'] ) ) { 1598 $sanitized_widget_setting = json_decode( $this->get_post_value( 'sanitized_widget_setting' ), true ); 1599 if ( false === $sanitized_widget_setting ) { 1600 $this->stop_capturing_option_updates(); 1601 return new WP_Error( 'widget_setting_malformed' ); 1602 } 1603 1604 $instance = $this->sanitize_widget_instance( $sanitized_widget_setting, $parsed_id['id_base'] ); 1605 if ( is_null( $instance ) ) { 1606 $this->stop_capturing_option_updates(); 1607 return new WP_Error( 'widget_setting_unsanitized' ); 1608 } 1609 1610 if ( ! is_null( $parsed_id['number'] ) ) { 1611 $value = array(); 1612 $value[ $parsed_id['number'] ] = $instance; 1613 $key = 'widget-' . $parsed_id['id_base']; 1614 $_REQUEST[ $key ] = wp_slash( $value ); 1615 $_POST[ $key ] = $_REQUEST[ $key ]; 1616 $added_input_vars[] = $key; 1617 } else { 1618 foreach ( $instance as $key => $value ) { 1619 $_REQUEST[ $key ] = wp_slash( $value ); 1620 $_POST[ $key ] = $_REQUEST[ $key ]; 1621 $added_input_vars[] = $key; 1622 } 1623 } 1624 } 1625 1626 // Invoke the widget update callback. 1627 foreach ( (array) $wp_registered_widget_updates as $name => $control ) { 1628 if ( $name === $parsed_id['id_base'] && is_callable( $control['callback'] ) ) { 1629 ob_start(); 1630 call_user_func_array( $control['callback'], $control['params'] ); 1631 ob_end_clean(); 1632 break; 1633 } 1634 } 1635 1636 // Clean up any input vars that were manually added. 1637 foreach ( $added_input_vars as $key ) { 1638 unset( $_POST[ $key ] ); 1639 unset( $_REQUEST[ $key ] ); 1640 } 1641 1642 // Make sure the expected option was updated. 1643 if ( 0 !== $this->count_captured_options() ) { 1644 if ( $this->count_captured_options() > 1 ) { 1645 $this->stop_capturing_option_updates(); 1646 return new WP_Error( 'widget_setting_too_many_options' ); 1647 } 1648 1649 $updated_option_name = key( $this->get_captured_options() ); 1650 if ( $updated_option_name !== $option_name ) { 1651 $this->stop_capturing_option_updates(); 1652 return new WP_Error( 'widget_setting_unexpected_option' ); 1653 } 1654 } 1655 1656 // Obtain the widget instance. 1657 $option = $this->get_captured_option( $option_name ); 1658 if ( null !== $parsed_id['number'] ) { 1659 $instance = $option[ $parsed_id['number'] ]; 1660 } else { 1661 $instance = $option; 1662 } 1663 1664 /* 1665 * Override the incoming $_POST['customized'] for a newly-created widget's 1666 * setting with the new $instance so that the preview filter currently 1667 * in place from WP_Customize_Setting::preview() will use this value 1668 * instead of the default widget instance value (an empty array). 1669 */ 1670 $this->manager->set_post_value( $setting_id, $this->sanitize_widget_js_instance( $instance, $parsed_id['id_base'] ) ); 1671 1672 // Obtain the widget control with the updated instance in place. 1673 ob_start(); 1674 $form = $wp_registered_widget_controls[ $widget_id ]; 1675 if ( $form ) { 1676 call_user_func_array( $form['callback'], $form['params'] ); 1677 } 1678 $form = ob_get_clean(); 1679 1680 $this->stop_capturing_option_updates(); 1681 1682 return compact( 'instance', 'form' ); 1683 } 1684 1685 /** 1686 * Updates widget settings asynchronously. 1687 * 1688 * Allows the Customizer to update a widget using its form, but return the new 1689 * instance info via Ajax instead of saving it to the options table. 1690 * 1691 * Most code here copied from wp_ajax_save_widget(). 1692 * 1693 * @since 3.9.0 1694 * 1695 * @see wp_ajax_save_widget() 1696 */ 1697 public function wp_ajax_update_widget() { 1698 1699 if ( ! is_user_logged_in() ) { 1700 wp_die( 0 ); 1701 } 1702 1703 check_ajax_referer( 'update-widget', 'nonce' ); 1704 1705 if ( ! current_user_can( 'edit_theme_options' ) ) { 1706 wp_die( -1 ); 1707 } 1708 1709 if ( empty( $_POST['widget-id'] ) ) { 1710 wp_send_json_error( 'missing_widget-id' ); 1711 } 1712 1713 /** This action is documented in wp-admin/includes/ajax-actions.php */ 1714 do_action( 'load-widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores 1715 1716 /** This action is documented in wp-admin/includes/ajax-actions.php */ 1717 do_action( 'widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores 1718 1719 /** This action is documented in wp-admin/widgets.php */ 1720 do_action( 'sidebar_admin_setup' ); 1721 1722 $widget_id = $this->get_post_value( 'widget-id' ); 1723 $parsed_id = $this->parse_widget_id( $widget_id ); 1724 $id_base = $parsed_id['id_base']; 1725 1726 $is_updating_widget_template = ( 1727 isset( $_POST[ 'widget-' . $id_base ] ) 1728 && 1729 is_array( $_POST[ 'widget-' . $id_base ] ) 1730 && 1731 preg_match( '/__i__|%i%/', key( $_POST[ 'widget-' . $id_base ] ) ) 1732 ); 1733 if ( $is_updating_widget_template ) { 1734 wp_send_json_error( 'template_widget_not_updatable' ); 1735 } 1736 1737 $updated_widget = $this->call_widget_update( $widget_id ); // => {instance,form} 1738 if ( is_wp_error( $updated_widget ) ) { 1739 wp_send_json_error( $updated_widget->get_error_code() ); 1740 } 1741 1742 $form = $updated_widget['form']; 1743 $instance = $this->sanitize_widget_js_instance( $updated_widget['instance'], $id_base ); 1744 1745 wp_send_json_success( compact( 'form', 'instance' ) ); 1746 } 1747 1748 /* 1749 * Selective Refresh Methods 1750 */ 1751 1752 /** 1753 * Filters arguments for dynamic widget partials. 1754 * 1755 * @since 4.5.0 1756 * 1757 * @param array|false $partial_args Partial arguments. 1758 * @param string $partial_id Partial ID. 1759 * @return array (Maybe) modified partial arguments. 1760 */ 1761 public function customize_dynamic_partial_args( $partial_args, $partial_id ) { 1762 if ( ! current_theme_supports( 'customize-selective-refresh-widgets' ) ) { 1763 return $partial_args; 1764 } 1765 1766 if ( preg_match( '/^widget\[(?P<widget_id>.+)\]$/', $partial_id, $matches ) ) { 1767 if ( false === $partial_args ) { 1768 $partial_args = array(); 1769 } 1770 $partial_args = array_merge( 1771 $partial_args, 1772 array( 1773 'type' => 'widget', 1774 'render_callback' => array( $this, 'render_widget_partial' ), 1775 'container_inclusive' => true, 1776 'settings' => array( $this->get_setting_id( $matches['widget_id'] ) ), 1777 'capability' => 'edit_theme_options', 1778 ) 1779 ); 1780 } 1781 1782 return $partial_args; 1783 } 1784 1785 /** 1786 * Adds hooks for selective refresh. 1787 * 1788 * @since 4.5.0 1789 */ 1790 public function selective_refresh_init() { 1791 if ( ! current_theme_supports( 'customize-selective-refresh-widgets' ) ) { 1792 return; 1793 } 1794 add_filter( 'dynamic_sidebar_params', array( $this, 'filter_dynamic_sidebar_params' ) ); 1795 add_filter( 'wp_kses_allowed_html', array( $this, 'filter_wp_kses_allowed_data_attributes' ) ); 1796 add_action( 'dynamic_sidebar_before', array( $this, 'start_dynamic_sidebar' ) ); 1797 add_action( 'dynamic_sidebar_after', array( $this, 'end_dynamic_sidebar' ) ); 1798 } 1799 1800 /** 1801 * Inject selective refresh data attributes into widget container elements. 1802 * 1803 * @since 4.5.0 1804 * 1805 * @param array $params { 1806 * Dynamic sidebar params. 1807 * 1808 * @type array $args Sidebar args. 1809 * @type array $widget_args Widget args. 1810 * } 1811 * @see WP_Customize_Nav_Menus::filter_wp_nav_menu_args() 1812 * 1813 * @return array Params. 1814 */ 1815 public function filter_dynamic_sidebar_params( $params ) { 1816 $sidebar_args = array_merge( 1817 array( 1818 'before_widget' => '', 1819 'after_widget' => '', 1820 ), 1821 $params[0] 1822 ); 1823 1824 // Skip widgets not in a registered sidebar or ones which lack a proper wrapper element to attach the data-* attributes to. 1825 $matches = array(); 1826 $is_valid = ( 1827 isset( $sidebar_args['id'] ) 1828 && 1829 is_registered_sidebar( $sidebar_args['id'] ) 1830 && 1831 ( isset( $this->current_dynamic_sidebar_id_stack[0] ) && $this->current_dynamic_sidebar_id_stack[0] === $sidebar_args['id'] ) 1832 && 1833 preg_match( '#^<(?P<tag_name>\w+)#', $sidebar_args['before_widget'], $matches ) 1834 ); 1835 if ( ! $is_valid ) { 1836 return $params; 1837 } 1838 $this->before_widget_tags_seen[ $matches['tag_name'] ] = true; 1839 1840 $context = array( 1841 'sidebar_id' => $sidebar_args['id'], 1842 ); 1843 if ( isset( $this->context_sidebar_instance_number ) ) { 1844 $context['sidebar_instance_number'] = $this->context_sidebar_instance_number; 1845 } elseif ( isset( $sidebar_args['id'] ) && isset( $this->sidebar_instance_count[ $sidebar_args['id'] ] ) ) { 1846 $context['sidebar_instance_number'] = $this->sidebar_instance_count[ $sidebar_args['id'] ]; 1847 } 1848 1849 $attributes = sprintf( ' data-customize-partial-id="%s"', esc_attr( 'widget[' . $sidebar_args['widget_id'] . ']' ) ); 1850 $attributes .= ' data-customize-partial-type="widget"'; 1851 $attributes .= sprintf( ' data-customize-partial-placement-context="%s"', esc_attr( wp_json_encode( $context ) ) ); 1852 $attributes .= sprintf( ' data-customize-widget-id="%s"', esc_attr( $sidebar_args['widget_id'] ) ); 1853 $sidebar_args['before_widget'] = preg_replace( '#^(<\w+)#', '$1 ' . $attributes, $sidebar_args['before_widget'] ); 1854 1855 $params[0] = $sidebar_args; 1856 return $params; 1857 } 1858 1859 /** 1860 * List of the tag names seen for before_widget strings. 1861 * 1862 * This is used in the {@see 'filter_wp_kses_allowed_html'} filter to ensure that the 1863 * data-* attributes can be allowed. 1864 * 1865 * @since 4.5.0 1866 * @var array 1867 */ 1868 protected $before_widget_tags_seen = array(); 1869 1870 /** 1871 * Ensures the HTML data-* attributes for selective refresh are allowed by kses. 1872 * 1873 * This is needed in case the `$before_widget` is run through wp_kses() when printed. 1874 * 1875 * @since 4.5.0 1876 * 1877 * @param array $allowed_html Allowed HTML. 1878 * @return array (Maybe) modified allowed HTML. 1879 */ 1880 public function filter_wp_kses_allowed_data_attributes( $allowed_html ) { 1881 foreach ( array_keys( $this->before_widget_tags_seen ) as $tag_name ) { 1882 if ( ! isset( $allowed_html[ $tag_name ] ) ) { 1883 $allowed_html[ $tag_name ] = array(); 1884 } 1885 $allowed_html[ $tag_name ] = array_merge( 1886 $allowed_html[ $tag_name ], 1887 array_fill_keys( 1888 array( 1889 'data-customize-partial-id', 1890 'data-customize-partial-type', 1891 'data-customize-partial-placement-context', 1892 'data-customize-partial-widget-id', 1893 'data-customize-partial-options', 1894 ), 1895 true 1896 ) 1897 ); 1898 } 1899 return $allowed_html; 1900 } 1901 1902 /** 1903 * Keep track of the number of times that dynamic_sidebar() was called for a given sidebar index. 1904 * 1905 * This helps facilitate the uncommon scenario where a single sidebar is rendered multiple times on a template. 1906 * 1907 * @since 4.5.0 1908 * @var array 1909 */ 1910 protected $sidebar_instance_count = array(); 1911 1912 /** 1913 * The current request's sidebar_instance_number context. 1914 * 1915 * @since 4.5.0 1916 * @var int|null 1917 */ 1918 protected $context_sidebar_instance_number; 1919 1920 /** 1921 * Current sidebar ID being rendered. 1922 * 1923 * @since 4.5.0 1924 * @var array 1925 */ 1926 protected $current_dynamic_sidebar_id_stack = array(); 1927 1928 /** 1929 * Begins keeping track of the current sidebar being rendered. 1930 * 1931 * Insert marker before widgets are rendered in a dynamic sidebar. 1932 * 1933 * @since 4.5.0 1934 * 1935 * @param int|string $index Index, name, or ID of the dynamic sidebar. 1936 */ 1937 public function start_dynamic_sidebar( $index ) { 1938 array_unshift( $this->current_dynamic_sidebar_id_stack, $index ); 1939 if ( ! isset( $this->sidebar_instance_count[ $index ] ) ) { 1940 $this->sidebar_instance_count[ $index ] = 0; 1941 } 1942 $this->sidebar_instance_count[ $index ] += 1; 1943 if ( ! $this->manager->selective_refresh->is_render_partials_request() ) { 1944 printf( "\n<!--dynamic_sidebar_before:%s:%d-->\n", esc_html( $index ), (int) $this->sidebar_instance_count[ $index ] ); 1945 } 1946 } 1947 1948 /** 1949 * Finishes keeping track of the current sidebar being rendered. 1950 * 1951 * Inserts a marker after widgets are rendered in a dynamic sidebar. 1952 * 1953 * @since 4.5.0 1954 * 1955 * @param int|string $index Index, name, or ID of the dynamic sidebar. 1956 */ 1957 public function end_dynamic_sidebar( $index ) { 1958 array_shift( $this->current_dynamic_sidebar_id_stack ); 1959 if ( ! $this->manager->selective_refresh->is_render_partials_request() ) { 1960 printf( "\n<!--dynamic_sidebar_after:%s:%d-->\n", esc_html( $index ), (int) $this->sidebar_instance_count[ $index ] ); 1961 } 1962 } 1963 1964 /** 1965 * Current sidebar being rendered. 1966 * 1967 * @since 4.5.0 1968 * @var string|null 1969 */ 1970 protected $rendering_widget_id; 1971 1972 /** 1973 * Current widget being rendered. 1974 * 1975 * @since 4.5.0 1976 * @var string|null 1977 */ 1978 protected $rendering_sidebar_id; 1979 1980 /** 1981 * Filters sidebars_widgets to ensure the currently-rendered widget is the only widget in the current sidebar. 1982 * 1983 * @since 4.5.0 1984 * 1985 * @param array $sidebars_widgets Sidebars widgets. 1986 * @return array Filtered sidebars widgets. 1987 */ 1988 public function filter_sidebars_widgets_for_rendering_widget( $sidebars_widgets ) { 1989 $sidebars_widgets[ $this->rendering_sidebar_id ] = array( $this->rendering_widget_id ); 1990 return $sidebars_widgets; 1991 } 1992 1993 /** 1994 * Renders a specific widget using the supplied sidebar arguments. 1995 * 1996 * @since 4.5.0 1997 * 1998 * @see dynamic_sidebar() 1999 * 2000 * @param WP_Customize_Partial $partial Partial. 2001 * @param array $context { 2002 * Sidebar args supplied as container context. 2003 * 2004 * @type string $sidebar_id ID for sidebar for widget to render into. 2005 * @type int $sidebar_instance_number Disambiguating instance number. 2006 * } 2007 * @return string|false 2008 */ 2009 public function render_widget_partial( $partial, $context ) { 2010 $id_data = $partial->id_data(); 2011 $widget_id = array_shift( $id_data['keys'] ); 2012 2013 if ( ! is_array( $context ) 2014 || empty( $context['sidebar_id'] ) 2015 || ! is_registered_sidebar( $context['sidebar_id'] ) 2016 ) { 2017 return false; 2018 } 2019 2020 $this->rendering_sidebar_id = $context['sidebar_id']; 2021 2022 if ( isset( $context['sidebar_instance_number'] ) ) { 2023 $this->context_sidebar_instance_number = (int) $context['sidebar_instance_number']; 2024 } 2025 2026 // Filter sidebars_widgets so that only the queried widget is in the sidebar. 2027 $this->rendering_widget_id = $widget_id; 2028 2029 $filter_callback = array( $this, 'filter_sidebars_widgets_for_rendering_widget' ); 2030 add_filter( 'sidebars_widgets', $filter_callback, 1000 ); 2031 2032 // Render the widget. 2033 ob_start(); 2034 $this->rendering_sidebar_id = $context['sidebar_id']; 2035 dynamic_sidebar( $this->rendering_sidebar_id ); 2036 $container = ob_get_clean(); 2037 2038 // Reset variables for next partial render. 2039 remove_filter( 'sidebars_widgets', $filter_callback, 1000 ); 2040 2041 $this->context_sidebar_instance_number = null; 2042 $this->rendering_sidebar_id = null; 2043 $this->rendering_widget_id = null; 2044 2045 return $container; 2046 } 2047 2048 // 2049 // Option Update Capturing. 2050 // 2051 2052 /** 2053 * List of captured widget option updates. 2054 * 2055 * @since 3.9.0 2056 * @var array $_captured_options Values updated while option capture is happening. 2057 */ 2058 protected $_captured_options = array(); 2059 2060 /** 2061 * Whether option capture is currently happening. 2062 * 2063 * @since 3.9.0 2064 * @var bool $_is_current Whether option capture is currently happening or not. 2065 */ 2066 protected $_is_capturing_option_updates = false; 2067 2068 /** 2069 * Determines whether the captured option update should be ignored. 2070 * 2071 * @since 3.9.0 2072 * 2073 * @param string $option_name Option name. 2074 * @return bool Whether the option capture is ignored. 2075 */ 2076 protected function is_option_capture_ignored( $option_name ) { 2077 return ( str_starts_with( $option_name, '_transient_' ) ); 2078 } 2079 2080 /** 2081 * Retrieves captured widget option updates. 2082 * 2083 * @since 3.9.0 2084 * 2085 * @return array Array of captured options. 2086 */ 2087 protected function get_captured_options() { 2088 return $this->_captured_options; 2089 } 2090 2091 /** 2092 * Retrieves the option that was captured from being saved. 2093 * 2094 * @since 4.2.0 2095 * 2096 * @param string $option_name Option name. 2097 * @param mixed $default_value Optional. Default value to return if the option does not exist. Default false. 2098 * @return mixed Value set for the option. 2099 */ 2100 protected function get_captured_option( $option_name, $default_value = false ) { 2101 if ( array_key_exists( $option_name, $this->_captured_options ) ) { 2102 $value = $this->_captured_options[ $option_name ]; 2103 } else { 2104 $value = $default_value; 2105 } 2106 return $value; 2107 } 2108 2109 /** 2110 * Retrieves the number of captured widget option updates. 2111 * 2112 * @since 3.9.0 2113 * 2114 * @return int Number of updated options. 2115 */ 2116 protected function count_captured_options() { 2117 return count( $this->_captured_options ); 2118 } 2119 2120 /** 2121 * Begins keeping track of changes to widget options, caching new values. 2122 * 2123 * @since 3.9.0 2124 */ 2125 protected function start_capturing_option_updates() { 2126 if ( $this->_is_capturing_option_updates ) { 2127 return; 2128 } 2129 2130 $this->_is_capturing_option_updates = true; 2131 2132 add_filter( 'pre_update_option', array( $this, 'capture_filter_pre_update_option' ), 10, 3 ); 2133 } 2134 2135 /** 2136 * Pre-filters captured option values before updating. 2137 * 2138 * @since 3.9.0 2139 * 2140 * @param mixed $new_value The new option value. 2141 * @param string $option_name Name of the option. 2142 * @param mixed $old_value The old option value. 2143 * @return mixed Filtered option value. 2144 */ 2145 public function capture_filter_pre_update_option( $new_value, $option_name, $old_value ) { 2146 if ( $this->is_option_capture_ignored( $option_name ) ) { 2147 return $new_value; 2148 } 2149 2150 if ( ! isset( $this->_captured_options[ $option_name ] ) ) { 2151 add_filter( "pre_option_{$option_name}", array( $this, 'capture_filter_pre_get_option' ) ); 2152 } 2153 2154 $this->_captured_options[ $option_name ] = $new_value; 2155 2156 return $old_value; 2157 } 2158 2159 /** 2160 * Pre-filters captured option values before retrieving. 2161 * 2162 * @since 3.9.0 2163 * 2164 * @param mixed $value Value to return instead of the option value. 2165 * @return mixed Filtered option value. 2166 */ 2167 public function capture_filter_pre_get_option( $value ) { 2168 $option_name = preg_replace( '/^pre_option_/', '', current_filter() ); 2169 2170 if ( isset( $this->_captured_options[ $option_name ] ) ) { 2171 $value = $this->_captured_options[ $option_name ]; 2172 2173 /** This filter is documented in wp-includes/option.php */ 2174 $value = apply_filters( 'option_' . $option_name, $value, $option_name ); 2175 } 2176 2177 return $value; 2178 } 2179 2180 /** 2181 * Undoes any changes to the options since options capture began. 2182 * 2183 * @since 3.9.0 2184 */ 2185 protected function stop_capturing_option_updates() { 2186 if ( ! $this->_is_capturing_option_updates ) { 2187 return; 2188 } 2189 2190 remove_filter( 'pre_update_option', array( $this, 'capture_filter_pre_update_option' ), 10 ); 2191 2192 foreach ( array_keys( $this->_captured_options ) as $option_name ) { 2193 remove_filter( "pre_option_{$option_name}", array( $this, 'capture_filter_pre_get_option' ) ); 2194 } 2195 2196 $this->_captured_options = array(); 2197 $this->_is_capturing_option_updates = false; 2198 } 2199 2200 /** 2201 * {@internal Missing Summary} 2202 * 2203 * See the {@see 'customize_dynamic_setting_args'} filter. 2204 * 2205 * @since 3.9.0 2206 * @deprecated 4.2.0 Deprecated in favor of the {@see 'customize_dynamic_setting_args'} filter. 2207 */ 2208 public function setup_widget_addition_previews() { 2209 _deprecated_function( __METHOD__, '4.2.0', 'customize_dynamic_setting_args' ); 2210 } 2211 2212 /** 2213 * {@internal Missing Summary} 2214 * 2215 * See the {@see 'customize_dynamic_setting_args'} filter. 2216 * 2217 * @since 3.9.0 2218 * @deprecated 4.2.0 Deprecated in favor of the {@see 'customize_dynamic_setting_args'} filter. 2219 */ 2220 public function prepreview_added_sidebars_widgets() { 2221 _deprecated_function( __METHOD__, '4.2.0', 'customize_dynamic_setting_args' ); 2222 } 2223 2224 /** 2225 * {@internal Missing Summary} 2226 * 2227 * See the {@see 'customize_dynamic_setting_args'} filter. 2228 * 2229 * @since 3.9.0 2230 * @deprecated 4.2.0 Deprecated in favor of the {@see 'customize_dynamic_setting_args'} filter. 2231 */ 2232 public function prepreview_added_widget_instance() { 2233 _deprecated_function( __METHOD__, '4.2.0', 'customize_dynamic_setting_args' ); 2234 } 2235 2236 /** 2237 * {@internal Missing Summary} 2238 * 2239 * See the {@see 'customize_dynamic_setting_args'} filter. 2240 * 2241 * @since 3.9.0 2242 * @deprecated 4.2.0 Deprecated in favor of the {@see 'customize_dynamic_setting_args'} filter. 2243 */ 2244 public function remove_prepreview_filters() { 2245 _deprecated_function( __METHOD__, '4.2.0', 'customize_dynamic_setting_args' ); 2246 } 2247 }
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