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1 <?php 2 /** 3 * Customize API: WP_Customize_Nav_Menu_Setting class 4 * 5 * @package WordPress 6 * @subpackage Customize 7 * @since 4.4.0 8 */ 9 10 /** 11 * Customize Setting to represent a nav_menu. 12 * 13 * Subclass of WP_Customize_Setting to represent a nav_menu taxonomy term, and 14 * the IDs for the nav_menu_items associated with the nav menu. 15 * 16 * @since 4.3.0 17 * 18 * @see wp_get_nav_menu_object() 19 * @see WP_Customize_Setting 20 */ 21 class WP_Customize_Nav_Menu_Setting extends WP_Customize_Setting { 22 23 const ID_PATTERN = '/^nav_menu\[(?P<id>-?\d+)\]$/'; 24 25 const TAXONOMY = 'nav_menu'; 26 27 const TYPE = 'nav_menu'; 28 29 /** 30 * Setting type. 31 * 32 * @since 4.3.0 33 * @var string 34 */ 35 public $type = self::TYPE; 36 37 /** 38 * Default setting value. 39 * 40 * @since 4.3.0 41 * @var array 42 * 43 * @see wp_get_nav_menu_object() 44 */ 45 public $default = array( 46 'name' => '', 47 'description' => '', 48 'parent' => 0, 49 'auto_add' => false, 50 ); 51 52 /** 53 * Default transport. 54 * 55 * @since 4.3.0 56 * @var string 57 */ 58 public $transport = 'postMessage'; 59 60 /** 61 * The term ID represented by this setting instance. 62 * 63 * A negative value represents a placeholder ID for a new menu not yet saved. 64 * 65 * @since 4.3.0 66 * @var int 67 */ 68 public $term_id; 69 70 /** 71 * Previous (placeholder) term ID used before creating a new menu. 72 * 73 * This value will be exported to JS via the {@see 'customize_save_response'} filter 74 * so that JavaScript can update the settings to refer to the newly-assigned 75 * term ID. This value is always negative to indicate it does not refer to 76 * a real term. 77 * 78 * @since 4.3.0 79 * @var int 80 * 81 * @see WP_Customize_Nav_Menu_Setting::update() 82 * @see WP_Customize_Nav_Menu_Setting::amend_customize_save_response() 83 */ 84 public $previous_term_id; 85 86 /** 87 * Whether or not update() was called. 88 * 89 * @since 4.3.0 90 * @var bool 91 */ 92 protected $is_updated = false; 93 94 /** 95 * Status for calling the update method, used in customize_save_response filter. 96 * 97 * See {@see 'customize_save_response'}. 98 * 99 * When status is inserted, the placeholder term ID is stored in `$previous_term_id`. 100 * When status is error, the error is stored in `$update_error`. 101 * 102 * @since 4.3.0 103 * @var string updated|inserted|deleted|error 104 * 105 * @see WP_Customize_Nav_Menu_Setting::update() 106 * @see WP_Customize_Nav_Menu_Setting::amend_customize_save_response() 107 */ 108 public $update_status; 109 110 /** 111 * Any error object returned by wp_update_nav_menu_object() when setting is updated. 112 * 113 * @since 4.3.0 114 * @var WP_Error 115 * 116 * @see WP_Customize_Nav_Menu_Setting::update() 117 * @see WP_Customize_Nav_Menu_Setting::amend_customize_save_response() 118 */ 119 public $update_error; 120 121 /** 122 * Constructor. 123 * 124 * Any supplied $args override class property defaults. 125 * 126 * @since 4.3.0 127 * 128 * @throws Exception If $id is not valid for this setting type. 129 * 130 * @param WP_Customize_Manager $manager Customizer bootstrap instance. 131 * @param string $id A specific ID of the setting. 132 * Can be a theme mod or option name. 133 * @param array $args Optional. Setting arguments. 134 */ 135 public function __construct( WP_Customize_Manager $manager, $id, array $args = array() ) { 136 if ( empty( $manager->nav_menus ) ) { 137 throw new Exception( 'Expected WP_Customize_Manager::$nav_menus to be set.' ); 138 } 139 140 if ( ! preg_match( self::ID_PATTERN, $id, $matches ) ) { 141 throw new Exception( "Illegal widget setting ID: $id" ); 142 } 143 144 $this->term_id = (int) $matches['id']; 145 146 parent::__construct( $manager, $id, $args ); 147 } 148 149 /** 150 * Get the instance data for a given widget setting. 151 * 152 * @since 4.3.0 153 * 154 * @see wp_get_nav_menu_object() 155 * 156 * @return array Instance data. 157 */ 158 public function value() { 159 if ( $this->is_previewed && get_current_blog_id() === $this->_previewed_blog_id ) { 160 $undefined = new stdClass(); // Symbol. 161 $post_value = $this->post_value( $undefined ); 162 163 if ( $undefined === $post_value ) { 164 $value = $this->_original_value; 165 } else { 166 $value = $post_value; 167 } 168 } else { 169 $value = false; 170 171 // Note that a term_id of less than one indicates a nav_menu not yet inserted. 172 if ( $this->term_id > 0 ) { 173 $term = wp_get_nav_menu_object( $this->term_id ); 174 175 if ( $term ) { 176 $value = wp_array_slice_assoc( (array) $term, array_keys( $this->default ) ); 177 178 $nav_menu_options = (array) get_option( 'nav_menu_options', array() ); 179 $value['auto_add'] = false; 180 181 if ( isset( $nav_menu_options['auto_add'] ) && is_array( $nav_menu_options['auto_add'] ) ) { 182 $value['auto_add'] = in_array( $term->term_id, $nav_menu_options['auto_add'], true ); 183 } 184 } 185 } 186 187 if ( ! is_array( $value ) ) { 188 $value = $this->default; 189 } 190 } 191 192 return $value; 193 } 194 195 /** 196 * Handle previewing the setting. 197 * 198 * @since 4.3.0 199 * @since 4.4.0 Added boolean return value 200 * 201 * @see WP_Customize_Manager::post_value() 202 * 203 * @return bool False if method short-circuited due to no-op. 204 */ 205 public function preview() { 206 if ( $this->is_previewed ) { 207 return false; 208 } 209 210 $undefined = new stdClass(); 211 $is_placeholder = ( $this->term_id < 0 ); 212 $is_dirty = ( $undefined !== $this->post_value( $undefined ) ); 213 if ( ! $is_placeholder && ! $is_dirty ) { 214 return false; 215 } 216 217 $this->is_previewed = true; 218 $this->_original_value = $this->value(); 219 $this->_previewed_blog_id = get_current_blog_id(); 220 221 add_filter( 'wp_get_nav_menus', array( $this, 'filter_wp_get_nav_menus' ), 10, 2 ); 222 add_filter( 'wp_get_nav_menu_object', array( $this, 'filter_wp_get_nav_menu_object' ), 10, 2 ); 223 add_filter( 'default_option_nav_menu_options', array( $this, 'filter_nav_menu_options' ) ); 224 add_filter( 'option_nav_menu_options', array( $this, 'filter_nav_menu_options' ) ); 225 226 return true; 227 } 228 229 /** 230 * Filters the wp_get_nav_menus() result to ensure the inserted menu object is included, and the deleted one is removed. 231 * 232 * @since 4.3.0 233 * 234 * @see wp_get_nav_menus() 235 * 236 * @param WP_Term[] $menus An array of menu objects. 237 * @param array $args An array of arguments used to retrieve menu objects. 238 * @return WP_Term[] Array of menu objects. 239 */ 240 public function filter_wp_get_nav_menus( $menus, $args ) { 241 if ( get_current_blog_id() !== $this->_previewed_blog_id ) { 242 return $menus; 243 } 244 245 $setting_value = $this->value(); 246 $is_delete = ( false === $setting_value ); 247 $index = -1; 248 249 // Find the existing menu item's position in the list. 250 foreach ( $menus as $i => $menu ) { 251 if ( (int) $this->term_id === (int) $menu->term_id || (int) $this->previous_term_id === (int) $menu->term_id ) { 252 $index = $i; 253 break; 254 } 255 } 256 257 if ( $is_delete ) { 258 // Handle deleted menu by removing it from the list. 259 if ( -1 !== $index ) { 260 array_splice( $menus, $index, 1 ); 261 } 262 } else { 263 // Handle menus being updated or inserted. 264 $menu_obj = (object) array_merge( 265 array( 266 'term_id' => $this->term_id, 267 'term_taxonomy_id' => $this->term_id, 268 'slug' => sanitize_title( $setting_value['name'] ), 269 'count' => 0, 270 'term_group' => 0, 271 'taxonomy' => self::TAXONOMY, 272 'filter' => 'raw', 273 ), 274 $setting_value 275 ); 276 277 array_splice( $menus, $index, ( -1 === $index ? 0 : 1 ), array( $menu_obj ) ); 278 } 279 280 // Make sure the menu objects get re-sorted after an update/insert. 281 if ( ! $is_delete && ! empty( $args['orderby'] ) ) { 282 $menus = wp_list_sort( 283 $menus, 284 array( 285 $args['orderby'] => 'ASC', 286 ) 287 ); 288 } 289 // @todo Add support for $args['hide_empty'] === true. 290 291 return $menus; 292 } 293 294 /** 295 * Temporary non-closure passing of orderby value to function. 296 * 297 * @since 4.3.0 298 * @var string 299 * 300 * @see WP_Customize_Nav_Menu_Setting::filter_wp_get_nav_menus() 301 * @see WP_Customize_Nav_Menu_Setting::_sort_menus_by_orderby() 302 */ 303 protected $_current_menus_sort_orderby; 304 305 /** 306 * Sort menu objects by the class-supplied orderby property. 307 * 308 * This is a workaround for a lack of closures. 309 * 310 * @since 4.3.0 311 * @deprecated 4.7.0 Use wp_list_sort() 312 * 313 * @param object $menu1 314 * @param object $menu2 315 * @return int 316 * 317 * @see WP_Customize_Nav_Menu_Setting::filter_wp_get_nav_menus() 318 */ 319 protected function _sort_menus_by_orderby( $menu1, $menu2 ) { 320 _deprecated_function( __METHOD__, '4.7.0', 'wp_list_sort' ); 321 322 $key = $this->_current_menus_sort_orderby; 323 return strcmp( $menu1->$key, $menu2->$key ); 324 } 325 326 /** 327 * Filters the wp_get_nav_menu_object() result to supply the previewed menu object. 328 * 329 * Requesting a nav_menu object by anything but ID is not supported. 330 * 331 * @since 4.3.0 332 * 333 * @see wp_get_nav_menu_object() 334 * 335 * @param object|null $menu_obj Object returned by wp_get_nav_menu_object(). 336 * @param string $menu_id ID of the nav_menu term. Requests by slug or name will be ignored. 337 * @return object|null 338 */ 339 public function filter_wp_get_nav_menu_object( $menu_obj, $menu_id ) { 340 $ok = ( 341 get_current_blog_id() === $this->_previewed_blog_id 342 && 343 is_int( $menu_id ) 344 && 345 $menu_id === $this->term_id 346 ); 347 if ( ! $ok ) { 348 return $menu_obj; 349 } 350 351 $setting_value = $this->value(); 352 353 // Handle deleted menus. 354 if ( false === $setting_value ) { 355 return false; 356 } 357 358 // Handle sanitization failure by preventing short-circuiting. 359 if ( null === $setting_value ) { 360 return $menu_obj; 361 } 362 363 $menu_obj = (object) array_merge( 364 array( 365 'term_id' => $this->term_id, 366 'term_taxonomy_id' => $this->term_id, 367 'slug' => sanitize_title( $setting_value['name'] ), 368 'count' => 0, 369 'term_group' => 0, 370 'taxonomy' => self::TAXONOMY, 371 'filter' => 'raw', 372 ), 373 $setting_value 374 ); 375 376 return $menu_obj; 377 } 378 379 /** 380 * Filters the nav_menu_options option to include this menu's auto_add preference. 381 * 382 * @since 4.3.0 383 * 384 * @param array $nav_menu_options Nav menu options including auto_add. 385 * @return array (Maybe) modified nav menu options. 386 */ 387 public function filter_nav_menu_options( $nav_menu_options ) { 388 if ( get_current_blog_id() !== $this->_previewed_blog_id ) { 389 return $nav_menu_options; 390 } 391 392 $menu = $this->value(); 393 $nav_menu_options = $this->filter_nav_menu_options_value( 394 $nav_menu_options, 395 $this->term_id, 396 false === $menu ? false : $menu['auto_add'] 397 ); 398 399 return $nav_menu_options; 400 } 401 402 /** 403 * Sanitize an input. 404 * 405 * Note that parent::sanitize() erroneously does wp_unslash() on $value, but 406 * we remove that in this override. 407 * 408 * @since 4.3.0 409 * 410 * @param array $value The menu value to sanitize. 411 * @return array|false|null Null if an input isn't valid. False if it is marked for deletion. 412 * Otherwise the sanitized value. 413 */ 414 public function sanitize( $value ) { 415 // Menu is marked for deletion. 416 if ( false === $value ) { 417 return $value; 418 } 419 420 // Invalid. 421 if ( ! is_array( $value ) ) { 422 return null; 423 } 424 425 $default = array( 426 'name' => '', 427 'description' => '', 428 'parent' => 0, 429 'auto_add' => false, 430 ); 431 $value = array_merge( $default, $value ); 432 $value = wp_array_slice_assoc( $value, array_keys( $default ) ); 433 434 $value['name'] = trim( esc_html( $value['name'] ) ); // This sanitization code is used in wp-admin/nav-menus.php. 435 $value['description'] = sanitize_text_field( $value['description'] ); 436 $value['parent'] = max( 0, (int) $value['parent'] ); 437 $value['auto_add'] = ! empty( $value['auto_add'] ); 438 439 if ( '' === $value['name'] ) { 440 $value['name'] = _x( '(unnamed)', 'Missing menu name.' ); 441 } 442 443 /** This filter is documented in wp-includes/class-wp-customize-setting.php */ 444 return apply_filters( "customize_sanitize_{$this->id}", $value, $this ); 445 } 446 447 /** 448 * Storage for data to be sent back to client in customize_save_response filter. 449 * 450 * See {@see 'customize_save_response'}. 451 * 452 * @since 4.3.0 453 * @var array 454 * 455 * @see WP_Customize_Nav_Menu_Setting::amend_customize_save_response() 456 */ 457 protected $_widget_nav_menu_updates = array(); 458 459 /** 460 * Create/update the nav_menu term for this setting. 461 * 462 * Any created menus will have their assigned term IDs exported to the client 463 * via the {@see 'customize_save_response'} filter. Likewise, any errors will be exported 464 * to the client via the customize_save_response() filter. 465 * 466 * To delete a menu, the client can send false as the value. 467 * 468 * @since 4.3.0 469 * 470 * @see wp_update_nav_menu_object() 471 * 472 * @param array|false $value { 473 * The value to update. Note that slug cannot be updated via wp_update_nav_menu_object(). 474 * If false, then the menu will be deleted entirely. 475 * 476 * @type string $name The name of the menu to save. 477 * @type string $description The term description. Default empty string. 478 * @type int $parent The id of the parent term. Default 0. 479 * @type bool $auto_add Whether pages will auto_add to this menu. Default false. 480 * } 481 * @return null|void 482 */ 483 protected function update( $value ) { 484 if ( $this->is_updated ) { 485 return; 486 } 487 488 $this->is_updated = true; 489 $is_placeholder = ( $this->term_id < 0 ); 490 $is_delete = ( false === $value ); 491 492 add_filter( 'customize_save_response', array( $this, 'amend_customize_save_response' ) ); 493 494 $auto_add = null; 495 if ( $is_delete ) { 496 // If the current setting term is a placeholder, a delete request is a no-op. 497 if ( $is_placeholder ) { 498 $this->update_status = 'deleted'; 499 } else { 500 $r = wp_delete_nav_menu( $this->term_id ); 501 502 if ( is_wp_error( $r ) ) { 503 $this->update_status = 'error'; 504 $this->update_error = $r; 505 } else { 506 $this->update_status = 'deleted'; 507 $auto_add = false; 508 } 509 } 510 } else { 511 // Insert or update menu. 512 $menu_data = wp_array_slice_assoc( $value, array( 'description', 'parent' ) ); 513 $menu_data['menu-name'] = $value['name']; 514 515 $menu_id = $is_placeholder ? 0 : $this->term_id; 516 $r = wp_update_nav_menu_object( $menu_id, wp_slash( $menu_data ) ); 517 $original_name = $menu_data['menu-name']; 518 $name_conflict_suffix = 1; 519 while ( is_wp_error( $r ) && 'menu_exists' === $r->get_error_code() ) { 520 $name_conflict_suffix += 1; 521 /* translators: 1: Original menu name, 2: Duplicate count. */ 522 $menu_data['menu-name'] = sprintf( __( '%1$s (%2$d)' ), $original_name, $name_conflict_suffix ); 523 $r = wp_update_nav_menu_object( $menu_id, wp_slash( $menu_data ) ); 524 } 525 526 if ( is_wp_error( $r ) ) { 527 $this->update_status = 'error'; 528 $this->update_error = $r; 529 } else { 530 if ( $is_placeholder ) { 531 $this->previous_term_id = $this->term_id; 532 $this->term_id = $r; 533 $this->update_status = 'inserted'; 534 } else { 535 $this->update_status = 'updated'; 536 } 537 538 $auto_add = $value['auto_add']; 539 } 540 } 541 542 if ( null !== $auto_add ) { 543 $nav_menu_options = $this->filter_nav_menu_options_value( 544 (array) get_option( 'nav_menu_options', array() ), 545 $this->term_id, 546 $auto_add 547 ); 548 update_option( 'nav_menu_options', $nav_menu_options ); 549 } 550 551 if ( 'inserted' === $this->update_status ) { 552 // Make sure that new menus assigned to nav menu locations use their new IDs. 553 foreach ( $this->manager->settings() as $setting ) { 554 if ( ! preg_match( '/^nav_menu_locations\[/', $setting->id ) ) { 555 continue; 556 } 557 558 $post_value = $setting->post_value( null ); 559 if ( ! is_null( $post_value ) && (int) $post_value === $this->previous_term_id ) { 560 $this->manager->set_post_value( $setting->id, $this->term_id ); 561 $setting->save(); 562 } 563 } 564 565 // Make sure that any nav_menu widgets referencing the placeholder nav menu get updated and sent back to client. 566 foreach ( array_keys( $this->manager->unsanitized_post_values() ) as $setting_id ) { 567 $nav_menu_widget_setting = $this->manager->get_setting( $setting_id ); 568 if ( ! $nav_menu_widget_setting || ! preg_match( '/^widget_nav_menu\[/', $nav_menu_widget_setting->id ) ) { 569 continue; 570 } 571 572 $widget_instance = $nav_menu_widget_setting->post_value(); // Note that this calls WP_Customize_Widgets::sanitize_widget_instance(). 573 if ( empty( $widget_instance['nav_menu'] ) || (int) $widget_instance['nav_menu'] !== $this->previous_term_id ) { 574 continue; 575 } 576 577 $widget_instance['nav_menu'] = $this->term_id; 578 $updated_widget_instance = $this->manager->widgets->sanitize_widget_js_instance( $widget_instance ); 579 $this->manager->set_post_value( $nav_menu_widget_setting->id, $updated_widget_instance ); 580 $nav_menu_widget_setting->save(); 581 582 $this->_widget_nav_menu_updates[ $nav_menu_widget_setting->id ] = $updated_widget_instance; 583 } 584 } 585 } 586 587 /** 588 * Updates a nav_menu_options array. 589 * 590 * @since 4.3.0 591 * 592 * @see WP_Customize_Nav_Menu_Setting::filter_nav_menu_options() 593 * @see WP_Customize_Nav_Menu_Setting::update() 594 * 595 * @param array $nav_menu_options Array as returned by get_option( 'nav_menu_options' ). 596 * @param int $menu_id The term ID for the given menu. 597 * @param bool $auto_add Whether to auto-add or not. 598 * @return array (Maybe) modified nav_menu_options array. 599 */ 600 protected function filter_nav_menu_options_value( $nav_menu_options, $menu_id, $auto_add ) { 601 $nav_menu_options = (array) $nav_menu_options; 602 if ( ! isset( $nav_menu_options['auto_add'] ) ) { 603 $nav_menu_options['auto_add'] = array(); 604 } 605 606 $i = array_search( $menu_id, $nav_menu_options['auto_add'], true ); 607 608 if ( $auto_add && false === $i ) { 609 array_push( $nav_menu_options['auto_add'], $this->term_id ); 610 } elseif ( ! $auto_add && false !== $i ) { 611 array_splice( $nav_menu_options['auto_add'], $i, 1 ); 612 } 613 614 return $nav_menu_options; 615 } 616 617 /** 618 * Export data for the JS client. 619 * 620 * @since 4.3.0 621 * 622 * @see WP_Customize_Nav_Menu_Setting::update() 623 * 624 * @param array $data Additional information passed back to the 'saved' event on `wp.customize`. 625 * @return array Export data. 626 */ 627 public function amend_customize_save_response( $data ) { 628 if ( ! isset( $data['nav_menu_updates'] ) ) { 629 $data['nav_menu_updates'] = array(); 630 } 631 if ( ! isset( $data['widget_nav_menu_updates'] ) ) { 632 $data['widget_nav_menu_updates'] = array(); 633 } 634 635 $data['nav_menu_updates'][] = array( 636 'term_id' => $this->term_id, 637 'previous_term_id' => $this->previous_term_id, 638 'error' => $this->update_error ? $this->update_error->get_error_code() : null, 639 'status' => $this->update_status, 640 'saved_value' => 'deleted' === $this->update_status ? null : $this->value(), 641 ); 642 643 $data['widget_nav_menu_updates'] = array_merge( 644 $data['widget_nav_menu_updates'], 645 $this->_widget_nav_menu_updates 646 ); 647 $this->_widget_nav_menu_updates = array(); 648 649 return $data; 650 } 651 }
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| Generated : Sat Dec 21 08:20:01 2024 | Cross-referenced by PHPXref |