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