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1 <?php 2 /** 3 * Screen API: WP_Screen class 4 * 5 * @package WordPress 6 * @subpackage Administration 7 * @since 4.4.0 8 */ 9 10 /** 11 * Core class used to implement an admin screen API. 12 * 13 * @since 3.3.0 14 */ 15 #[AllowDynamicProperties] 16 final class WP_Screen { 17 /** 18 * Any action associated with the screen. 19 * 20 * 'add' for *-add.php and *-new.php screens. Empty otherwise. 21 * 22 * @since 3.3.0 23 * @var string 24 */ 25 public $action; 26 27 /** 28 * The base type of the screen. 29 * 30 * This is typically the same as `$id` but with any post types and taxonomies stripped. 31 * For example, for an `$id` of 'edit-post' the base is 'edit'. 32 * 33 * @since 3.3.0 34 * @var string 35 */ 36 public $base; 37 38 /** 39 * The number of columns to display. Access with get_columns(). 40 * 41 * @since 3.4.0 42 * @var int 43 */ 44 private $columns = 0; 45 46 /** 47 * The unique ID of the screen. 48 * 49 * @since 3.3.0 50 * @var string 51 */ 52 public $id; 53 54 /** 55 * Which admin the screen is in. network | user | site | false 56 * 57 * @since 3.5.0 58 * @var string 59 */ 60 protected $in_admin; 61 62 /** 63 * Whether the screen is in the network admin. 64 * 65 * Deprecated. Use in_admin() instead. 66 * 67 * @since 3.3.0 68 * @deprecated 3.5.0 69 * @var bool 70 */ 71 public $is_network; 72 73 /** 74 * Whether the screen is in the user admin. 75 * 76 * Deprecated. Use in_admin() instead. 77 * 78 * @since 3.3.0 79 * @deprecated 3.5.0 80 * @var bool 81 */ 82 public $is_user; 83 84 /** 85 * The base menu parent. 86 * 87 * This is derived from `$parent_file` by removing the query string and any .php extension. 88 * `$parent_file` values of 'edit.php?post_type=page' and 'edit.php?post_type=post' 89 * have a `$parent_base` of 'edit'. 90 * 91 * @since 3.3.0 92 * @var string|null 93 */ 94 public $parent_base; 95 96 /** 97 * The parent_file for the screen per the admin menu system. 98 * 99 * Some `$parent_file` values are 'edit.php?post_type=page', 'edit.php', and 'options-general.php'. 100 * 101 * @since 3.3.0 102 * @var string|null 103 */ 104 public $parent_file; 105 106 /** 107 * The post type associated with the screen, if any. 108 * 109 * The 'edit.php?post_type=page' screen has a post type of 'page'. 110 * The 'edit-tags.php?taxonomy=$taxonomy&post_type=page' screen has a post type of 'page'. 111 * 112 * @since 3.3.0 113 * @var string 114 */ 115 public $post_type; 116 117 /** 118 * The taxonomy associated with the screen, if any. 119 * 120 * The 'edit-tags.php?taxonomy=category' screen has a taxonomy of 'category'. 121 * 122 * @since 3.3.0 123 * @var string 124 */ 125 public $taxonomy; 126 127 /** 128 * The help tab data associated with the screen, if any. 129 * 130 * @since 3.3.0 131 * @var array 132 */ 133 private $_help_tabs = array(); 134 135 /** 136 * The help sidebar data associated with screen, if any. 137 * 138 * @since 3.3.0 139 * @var string 140 */ 141 private $_help_sidebar = ''; 142 143 /** 144 * The accessible hidden headings and text associated with the screen, if any. 145 * 146 * @since 4.4.0 147 * @var string[] 148 */ 149 private $_screen_reader_content = array(); 150 151 /** 152 * Stores old string-based help. 153 * 154 * @var array 155 */ 156 private static $_old_compat_help = array(); 157 158 /** 159 * The screen options associated with screen, if any. 160 * 161 * @since 3.3.0 162 * @var array 163 */ 164 private $_options = array(); 165 166 /** 167 * The screen object registry. 168 * 169 * @since 3.3.0 170 * 171 * @var array 172 */ 173 private static $_registry = array(); 174 175 /** 176 * Stores the result of the public show_screen_options function. 177 * 178 * Set when calling {@see self::show_screen_options()} for the first time. 179 * 180 * @since 3.3.0 181 * @var ?bool 182 */ 183 private $_show_screen_options; 184 185 /** 186 * Stores the 'screen_settings' section of screen options. 187 * 188 * @since 3.3.0 189 * @var string 190 */ 191 private $_screen_settings; 192 193 /** 194 * Whether the screen is using the block editor. 195 * 196 * @since 5.0.0 197 * @var bool 198 */ 199 public $is_block_editor = false; 200 201 /** 202 * Fetches a screen object. 203 * 204 * @since 3.3.0 205 * 206 * @global string $hook_suffix 207 * 208 * @param string|WP_Screen $hook_name Optional. The hook name (also known as the hook suffix) used to determine the screen. 209 * Defaults to the current $hook_suffix global. 210 * @return WP_Screen Screen object. 211 */ 212 public static function get( $hook_name = '' ) { 213 if ( $hook_name instanceof WP_Screen ) { 214 return $hook_name; 215 } 216 217 $id = ''; 218 $post_type = null; 219 $taxonomy = null; 220 $in_admin = false; 221 $action = ''; 222 $is_block_editor = false; 223 224 if ( $hook_name ) { 225 $id = $hook_name; 226 } elseif ( ! empty( $GLOBALS['hook_suffix'] ) ) { 227 $id = $GLOBALS['hook_suffix']; 228 } 229 230 // For those pesky meta boxes. 231 if ( $hook_name && post_type_exists( $hook_name ) ) { 232 $post_type = $id; 233 $id = 'post'; // Changes later. Ends up being $base. 234 } else { 235 if ( str_ends_with( $id, '.php' ) ) { 236 $id = substr( $id, 0, -4 ); 237 } 238 239 if ( in_array( $id, array( 'post-new', 'link-add', 'media-new', 'user-new' ), true ) ) { 240 $id = substr( $id, 0, -4 ); 241 $action = 'add'; 242 } 243 } 244 245 if ( ! $post_type && $hook_name ) { 246 if ( str_ends_with( $id, '-network' ) ) { 247 $id = substr( $id, 0, -8 ); 248 $in_admin = 'network'; 249 } elseif ( str_ends_with( $id, '-user' ) ) { 250 $id = substr( $id, 0, -5 ); 251 $in_admin = 'user'; 252 } 253 254 $id = sanitize_key( $id ); 255 if ( 'edit-comments' !== $id && 'edit-tags' !== $id && str_starts_with( $id, 'edit-' ) ) { 256 $maybe = substr( $id, 5 ); 257 if ( taxonomy_exists( $maybe ) ) { 258 $id = 'edit-tags'; 259 $taxonomy = $maybe; 260 } elseif ( post_type_exists( $maybe ) ) { 261 $id = 'edit'; 262 $post_type = $maybe; 263 } 264 } 265 266 if ( ! $in_admin ) { 267 $in_admin = 'site'; 268 } 269 } else { 270 if ( defined( 'WP_NETWORK_ADMIN' ) && WP_NETWORK_ADMIN ) { 271 $in_admin = 'network'; 272 } elseif ( defined( 'WP_USER_ADMIN' ) && WP_USER_ADMIN ) { 273 $in_admin = 'user'; 274 } else { 275 $in_admin = 'site'; 276 } 277 } 278 279 if ( 'index' === $id ) { 280 $id = 'dashboard'; 281 } elseif ( 'front' === $id ) { 282 $in_admin = false; 283 } 284 285 $base = $id; 286 287 // If this is the current screen, see if we can be more accurate for post types and taxonomies. 288 if ( ! $hook_name ) { 289 if ( isset( $_REQUEST['post_type'] ) ) { 290 $post_type = post_type_exists( $_REQUEST['post_type'] ) ? $_REQUEST['post_type'] : false; 291 } 292 if ( isset( $_REQUEST['taxonomy'] ) ) { 293 $taxonomy = taxonomy_exists( $_REQUEST['taxonomy'] ) ? $_REQUEST['taxonomy'] : false; 294 } 295 296 switch ( $base ) { 297 case 'post': 298 if ( isset( $_GET['post'] ) && isset( $_POST['post_ID'] ) && (int) $_GET['post'] !== (int) $_POST['post_ID'] ) { 299 wp_die( __( 'A post ID mismatch has been detected.' ), __( 'Sorry, you are not allowed to edit this item.' ), 400 ); 300 } elseif ( isset( $_GET['post'] ) ) { 301 $post_id = (int) $_GET['post']; 302 } elseif ( isset( $_POST['post_ID'] ) ) { 303 $post_id = (int) $_POST['post_ID']; 304 } else { 305 $post_id = 0; 306 } 307 308 if ( $post_id ) { 309 $post = get_post( $post_id ); 310 if ( $post ) { 311 $post_type = $post->post_type; 312 313 /** This filter is documented in wp-admin/post.php */ 314 $replace_editor = apply_filters( 'replace_editor', false, $post ); 315 316 if ( ! $replace_editor ) { 317 $is_block_editor = use_block_editor_for_post( $post ); 318 } 319 } 320 } 321 break; 322 case 'edit-tags': 323 case 'term': 324 if ( null === $post_type && is_object_in_taxonomy( 'post', $taxonomy ? $taxonomy : 'post_tag' ) ) { 325 $post_type = 'post'; 326 } 327 break; 328 case 'upload': 329 $post_type = 'attachment'; 330 break; 331 } 332 } 333 334 switch ( $base ) { 335 case 'post': 336 if ( null === $post_type ) { 337 $post_type = 'post'; 338 } 339 340 // When creating a new post, use the default block editor support value for the post type. 341 if ( empty( $post_id ) ) { 342 $is_block_editor = use_block_editor_for_post_type( $post_type ); 343 } 344 345 $id = $post_type; 346 break; 347 case 'edit': 348 if ( null === $post_type ) { 349 $post_type = 'post'; 350 } 351 $id .= '-' . $post_type; 352 break; 353 case 'edit-tags': 354 case 'term': 355 if ( null === $taxonomy ) { 356 $taxonomy = 'post_tag'; 357 } 358 // The edit-tags ID does not contain the post type. Look for it in the request. 359 if ( null === $post_type ) { 360 $post_type = 'post'; 361 if ( isset( $_REQUEST['post_type'] ) && post_type_exists( $_REQUEST['post_type'] ) ) { 362 $post_type = $_REQUEST['post_type']; 363 } 364 } 365 366 $id = 'edit-' . $taxonomy; 367 break; 368 } 369 370 if ( 'network' === $in_admin ) { 371 $id .= '-network'; 372 $base .= '-network'; 373 } elseif ( 'user' === $in_admin ) { 374 $id .= '-user'; 375 $base .= '-user'; 376 } 377 378 if ( isset( self::$_registry[ $id ] ) ) { 379 $screen = self::$_registry[ $id ]; 380 if ( get_current_screen() === $screen ) { 381 return $screen; 382 } 383 } else { 384 $screen = new self(); 385 $screen->id = $id; 386 } 387 388 $screen->base = $base; 389 $screen->action = $action; 390 $screen->post_type = (string) $post_type; 391 $screen->taxonomy = (string) $taxonomy; 392 $screen->is_user = ( 'user' === $in_admin ); 393 $screen->is_network = ( 'network' === $in_admin ); 394 $screen->in_admin = $in_admin; 395 $screen->is_block_editor = $is_block_editor; 396 397 self::$_registry[ $id ] = $screen; 398 399 return $screen; 400 } 401 402 /** 403 * Makes the screen object the current screen. 404 * 405 * @see set_current_screen() 406 * @since 3.3.0 407 * 408 * @global WP_Screen $current_screen WordPress current screen object. 409 * @global string $typenow The post type of the current screen. 410 * @global string $taxnow The taxonomy of the current screen. 411 */ 412 public function set_current_screen() { 413 global $current_screen, $taxnow, $typenow; 414 415 $current_screen = $this; 416 $typenow = $this->post_type; 417 $taxnow = $this->taxonomy; 418 419 /** 420 * Fires after the current screen has been set. 421 * 422 * @since 3.0.0 423 * 424 * @param WP_Screen $current_screen Current WP_Screen object. 425 */ 426 do_action( 'current_screen', $current_screen ); 427 } 428 429 /** 430 * Constructor 431 * 432 * @since 3.3.0 433 */ 434 private function __construct() {} 435 436 /** 437 * Indicates whether the screen is in a particular admin. 438 * 439 * @since 3.5.0 440 * 441 * @param string $admin The admin to check against (network | user | site). 442 * If empty any of the three admins will result in true. 443 * @return bool True if the screen is in the indicated admin, false otherwise. 444 */ 445 public function in_admin( $admin = null ) { 446 if ( empty( $admin ) ) { 447 return (bool) $this->in_admin; 448 } 449 450 return ( $admin === $this->in_admin ); 451 } 452 453 /** 454 * Sets or returns whether the block editor is loading on the current screen. 455 * 456 * @since 5.0.0 457 * 458 * @param bool $set Optional. Sets whether the block editor is loading on the current screen or not. 459 * @return bool True if the block editor is being loaded, false otherwise. 460 */ 461 public function is_block_editor( $set = null ) { 462 if ( null !== $set ) { 463 $this->is_block_editor = (bool) $set; 464 } 465 466 return $this->is_block_editor; 467 } 468 469 /** 470 * Sets the old string-based contextual help for the screen for backward compatibility. 471 * 472 * @since 3.3.0 473 * 474 * @param WP_Screen $screen A screen object. 475 * @param string $help Help text. 476 */ 477 public static function add_old_compat_help( $screen, $help ) { 478 self::$_old_compat_help[ $screen->id ] = $help; 479 } 480 481 /** 482 * Sets the parent information for the screen. 483 * 484 * This is called in admin-header.php after the menu parent for the screen has been determined. 485 * 486 * @since 3.3.0 487 * 488 * @param string $parent_file The parent file of the screen. Typically the $parent_file global. 489 */ 490 public function set_parentage( $parent_file ) { 491 $this->parent_file = $parent_file; 492 list( $this->parent_base ) = explode( '?', $parent_file ); 493 $this->parent_base = str_replace( '.php', '', $this->parent_base ); 494 } 495 496 /** 497 * Adds an option for the screen. 498 * 499 * Call this in template files after admin.php is loaded and before admin-header.php is loaded 500 * to add screen options. 501 * 502 * @since 3.3.0 503 * 504 * @param string $option Option ID. 505 * @param mixed $args Option-dependent arguments. 506 */ 507 public function add_option( $option, $args = array() ) { 508 $this->_options[ $option ] = $args; 509 } 510 511 /** 512 * Removes an option from the screen. 513 * 514 * @since 3.8.0 515 * 516 * @param string $option Option ID. 517 */ 518 public function remove_option( $option ) { 519 unset( $this->_options[ $option ] ); 520 } 521 522 /** 523 * Removes all options from the screen. 524 * 525 * @since 3.8.0 526 */ 527 public function remove_options() { 528 $this->_options = array(); 529 } 530 531 /** 532 * Gets the options registered for the screen. 533 * 534 * @since 3.8.0 535 * 536 * @return array Options with arguments. 537 */ 538 public function get_options() { 539 return $this->_options; 540 } 541 542 /** 543 * Gets the arguments for an option for the screen. 544 * 545 * @since 3.3.0 546 * 547 * @param string $option Option name. 548 * @param string|false $key Optional. Specific array key for when the option is an array. 549 * Default false. 550 * @return ?string The option value if set, null otherwise. 551 */ 552 public function get_option( $option, $key = false ) { 553 if ( ! isset( $this->_options[ $option ] ) ) { 554 return null; 555 } 556 if ( $key ) { 557 return $this->_options[ $option ][ $key ] ?? null; 558 } 559 return $this->_options[ $option ]; 560 } 561 562 /** 563 * Gets the help tabs registered for the screen. 564 * 565 * @since 3.4.0 566 * @since 4.4.0 Help tabs are ordered by their priority. 567 * 568 * @return array Help tabs with arguments. 569 */ 570 public function get_help_tabs() { 571 $help_tabs = $this->_help_tabs; 572 573 $priorities = array(); 574 foreach ( $help_tabs as $help_tab ) { 575 if ( isset( $priorities[ $help_tab['priority'] ] ) ) { 576 $priorities[ $help_tab['priority'] ][] = $help_tab; 577 } else { 578 $priorities[ $help_tab['priority'] ] = array( $help_tab ); 579 } 580 } 581 582 ksort( $priorities ); 583 584 $sorted = array(); 585 foreach ( $priorities as $list ) { 586 foreach ( $list as $tab ) { 587 $sorted[ $tab['id'] ] = $tab; 588 } 589 } 590 591 return $sorted; 592 } 593 594 /** 595 * Gets the arguments for a help tab. 596 * 597 * @since 3.4.0 598 * 599 * @param string $id Help Tab ID. 600 * @return ?array Help tab arguments, or null if no help tabs added. 601 */ 602 public function get_help_tab( $id ) { 603 if ( ! isset( $this->_help_tabs[ $id ] ) ) { 604 return null; 605 } 606 return $this->_help_tabs[ $id ]; 607 } 608 609 /** 610 * Adds a help tab to the contextual help for the screen. 611 * 612 * Call this on the `load-$pagenow` hook for the relevant screen, 613 * or fetch the `$current_screen` object, or use get_current_screen() 614 * and then call the method from the object. 615 * 616 * You may need to filter `$current_screen` using an if or switch statement 617 * to prevent new help tabs from being added to ALL admin screens. 618 * 619 * @since 3.3.0 620 * @since 4.4.0 The `$priority` argument was added. 621 * 622 * @param array $args { 623 * Array of arguments used to display the help tab. 624 * 625 * @type string $title Title for the tab. Default false. 626 * @type string $id Tab ID. Must be HTML-safe and should be unique for this menu. 627 * It is NOT allowed to contain any empty spaces. Default false. 628 * @type string $content Optional. Help tab content in plain text or HTML. Default empty string. 629 * @type callable $callback Optional. A callback to generate the tab content. Default false. 630 * @type int $priority Optional. The priority of the tab, used for ordering. Default 10. 631 * } 632 */ 633 public function add_help_tab( $args ) { 634 $defaults = array( 635 'title' => false, 636 'id' => false, 637 'content' => '', 638 'callback' => false, 639 'priority' => 10, 640 ); 641 $args = wp_parse_args( $args, $defaults ); 642 643 $args['id'] = sanitize_html_class( $args['id'] ); 644 645 // Ensure we have an ID and title. 646 if ( ! $args['id'] || ! $args['title'] ) { 647 return; 648 } 649 650 // Allows for overriding an existing tab with that ID. 651 $this->_help_tabs[ $args['id'] ] = $args; 652 } 653 654 /** 655 * Removes a help tab from the contextual help for the screen. 656 * 657 * @since 3.3.0 658 * 659 * @param string $id The help tab ID. 660 */ 661 public function remove_help_tab( $id ) { 662 unset( $this->_help_tabs[ $id ] ); 663 } 664 665 /** 666 * Removes all help tabs from the contextual help for the screen. 667 * 668 * @since 3.3.0 669 */ 670 public function remove_help_tabs() { 671 $this->_help_tabs = array(); 672 } 673 674 /** 675 * Gets the content from a contextual help sidebar. 676 * 677 * @since 3.4.0 678 * 679 * @return string Contents of the help sidebar. 680 */ 681 public function get_help_sidebar() { 682 return $this->_help_sidebar; 683 } 684 685 /** 686 * Adds a sidebar to the contextual help for the screen. 687 * 688 * Call this in template files after admin.php is loaded and before admin-header.php is loaded 689 * to add a sidebar to the contextual help. 690 * 691 * @since 3.3.0 692 * 693 * @param string $content Sidebar content in plain text or HTML. 694 */ 695 public function set_help_sidebar( $content ) { 696 $this->_help_sidebar = $content; 697 } 698 699 /** 700 * Gets the number of layout columns the user has selected. 701 * 702 * The layout_columns option controls the max number and default number of 703 * columns. This method returns the number of columns within that range selected 704 * by the user via Screen Options. If no selection has been made, the default 705 * provisioned in layout_columns is returned. If the screen does not support 706 * selecting the number of layout columns, 0 is returned. 707 * 708 * @since 3.4.0 709 * 710 * @return int Number of columns to display. 711 */ 712 public function get_columns() { 713 return $this->columns; 714 } 715 716 /** 717 * Gets the accessible hidden headings and text used in the screen. 718 * 719 * @since 4.4.0 720 * 721 * @see set_screen_reader_content() For more information on the array format. 722 * 723 * @return string[] An associative array of screen reader text strings. 724 */ 725 public function get_screen_reader_content() { 726 return $this->_screen_reader_content; 727 } 728 729 /** 730 * Gets a screen reader text string. 731 * 732 * @since 4.4.0 733 * 734 * @param string $key Screen reader text array named key. 735 * @return ?string Screen reader text string, or null if no text is associated with the key. 736 */ 737 public function get_screen_reader_text( $key ) { 738 if ( ! isset( $this->_screen_reader_content[ $key ] ) ) { 739 return null; 740 } 741 return $this->_screen_reader_content[ $key ]; 742 } 743 744 /** 745 * Adds accessible hidden headings and text for the screen. 746 * 747 * @since 4.4.0 748 * 749 * @param array $content { 750 * An associative array of screen reader text strings. 751 * 752 * @type string $heading_views Screen reader text for the filter links heading. 753 * Default 'Filter items list'. 754 * @type string $heading_pagination Screen reader text for the pagination heading. 755 * Default 'Items list navigation'. 756 * @type string $heading_list Screen reader text for the items list heading. 757 * Default 'Items list'. 758 * } 759 */ 760 public function set_screen_reader_content( $content = array() ) { 761 $defaults = array( 762 'heading_views' => __( 'Filter items list' ), 763 'heading_pagination' => __( 'Items list navigation' ), 764 'heading_list' => __( 'Items list' ), 765 ); 766 $content = wp_parse_args( $content, $defaults ); 767 768 $this->_screen_reader_content = $content; 769 } 770 771 /** 772 * Removes all the accessible hidden headings and text for the screen. 773 * 774 * @since 4.4.0 775 */ 776 public function remove_screen_reader_content() { 777 $this->_screen_reader_content = array(); 778 } 779 780 /** 781 * Renders the screen's help section. 782 * 783 * This will trigger the deprecated filters for backward compatibility. 784 * 785 * @since 3.3.0 786 * 787 * @global string $screen_layout_columns 788 */ 789 public function render_screen_meta() { 790 791 /** 792 * Filters the legacy contextual help list. 793 * 794 * @since 2.7.0 795 * @deprecated 3.3.0 Use {@see get_current_screen()->add_help_tab()} or 796 * {@see get_current_screen()->remove_help_tab()} instead. 797 * 798 * @param array $old_compat_help Old contextual help. 799 * @param WP_Screen $screen Current WP_Screen instance. 800 */ 801 self::$_old_compat_help = apply_filters_deprecated( 802 'contextual_help_list', 803 array( self::$_old_compat_help, $this ), 804 '3.3.0', 805 'get_current_screen()->add_help_tab(), get_current_screen()->remove_help_tab()' 806 ); 807 808 $old_help = self::$_old_compat_help[ $this->id ] ?? ''; 809 810 /** 811 * Filters the legacy contextual help text. 812 * 813 * @since 2.7.0 814 * @deprecated 3.3.0 Use {@see get_current_screen()->add_help_tab()} or 815 * {@see get_current_screen()->remove_help_tab()} instead. 816 * 817 * @param string $old_help Help text that appears on the screen. 818 * @param string $screen_id Screen ID. 819 * @param WP_Screen $screen Current WP_Screen instance. 820 */ 821 $old_help = apply_filters_deprecated( 822 'contextual_help', 823 array( $old_help, $this->id, $this ), 824 '3.3.0', 825 'get_current_screen()->add_help_tab(), get_current_screen()->remove_help_tab()' 826 ); 827 828 // Default help only if there is no old-style block of text and no new-style help tabs. 829 if ( empty( $old_help ) && ! $this->get_help_tabs() ) { 830 831 /** 832 * Filters the default legacy contextual help text. 833 * 834 * @since 2.8.0 835 * @deprecated 3.3.0 Use {@see get_current_screen()->add_help_tab()} or 836 * {@see get_current_screen()->remove_help_tab()} instead. 837 * 838 * @param string $old_help_default Default contextual help text. 839 */ 840 $default_help = apply_filters_deprecated( 841 'default_contextual_help', 842 array( '' ), 843 '3.3.0', 844 'get_current_screen()->add_help_tab(), get_current_screen()->remove_help_tab()' 845 ); 846 if ( $default_help ) { 847 $old_help = '<p>' . $default_help . '</p>'; 848 } 849 } 850 851 if ( $old_help ) { 852 $this->add_help_tab( 853 array( 854 'id' => 'old-contextual-help', 855 'title' => __( 'Overview' ), 856 'content' => $old_help, 857 ) 858 ); 859 } 860 861 $help_sidebar = $this->get_help_sidebar(); 862 863 $help_class = 'hidden'; 864 if ( ! $help_sidebar ) { 865 $help_class .= ' no-sidebar'; 866 } 867 868 // Time to render! 869 ?> 870 <div id="screen-meta" class="metabox-prefs"> 871 872 <div id="contextual-help-wrap" class="<?php echo esc_attr( $help_class ); ?>" tabindex="-1" aria-label="<?php esc_attr_e( 'Contextual Help Tab' ); ?>"> 873 <div id="contextual-help-back"></div> 874 <div id="contextual-help-columns"> 875 <div class="contextual-help-tabs"> 876 <ul> 877 <?php 878 $class = ' class="active"'; 879 foreach ( $this->get_help_tabs() as $tab ) : 880 $link_id = "tab-link-{$tab['id']}"; 881 $panel_id = "tab-panel-{$tab['id']}"; 882 ?> 883 884 <li id="<?php echo esc_attr( $link_id ); ?>"<?php echo $class; ?>> 885 <a href="<?php echo esc_url( "#$panel_id" ); ?>" aria-controls="<?php echo esc_attr( $panel_id ); ?>"> 886 <?php echo esc_html( $tab['title'] ); ?> 887 </a> 888 </li> 889 <?php 890 $class = ''; 891 endforeach; 892 ?> 893 </ul> 894 </div> 895 896 <?php if ( $help_sidebar ) : ?> 897 <div class="contextual-help-sidebar"> 898 <?php echo $help_sidebar; ?> 899 </div> 900 <?php endif; ?> 901 902 <div class="contextual-help-tabs-wrap"> 903 <?php 904 $classes = 'help-tab-content active'; 905 foreach ( $this->get_help_tabs() as $tab ) : 906 $panel_id = "tab-panel-{$tab['id']}"; 907 ?> 908 909 <div id="<?php echo esc_attr( $panel_id ); ?>" class="<?php echo $classes; ?>"> 910 <?php 911 // Print tab content. 912 echo $tab['content']; 913 914 // If it exists, fire tab callback. 915 if ( ! empty( $tab['callback'] ) ) { 916 call_user_func_array( $tab['callback'], array( $this, $tab ) ); 917 } 918 ?> 919 </div> 920 <?php 921 $classes = 'help-tab-content'; 922 endforeach; 923 ?> 924 </div> 925 </div> 926 </div> 927 <?php 928 // Setup layout columns. 929 930 /** 931 * Filters the array of screen layout columns. 932 * 933 * This hook provides back-compat for plugins using the back-compat 934 * Filters instead of add_screen_option(). 935 * 936 * @since 2.8.0 937 * 938 * @param array $empty_columns Empty array. 939 * @param string $screen_id Screen ID. 940 * @param WP_Screen $screen Current WP_Screen instance. 941 */ 942 $columns = apply_filters( 'screen_layout_columns', array(), $this->id, $this ); 943 944 if ( ! empty( $columns ) && isset( $columns[ $this->id ] ) ) { 945 $this->add_option( 'layout_columns', array( 'max' => $columns[ $this->id ] ) ); 946 } 947 948 if ( $this->get_option( 'layout_columns' ) ) { 949 $this->columns = (int) get_user_option( "screen_layout_$this->id" ); 950 951 $layout_columns = (int) $this->get_option( 'layout_columns', 'default' ); 952 if ( ! $this->columns && $layout_columns ) { 953 $this->columns = $layout_columns; 954 } 955 } 956 $GLOBALS['screen_layout_columns'] = $this->columns; // Set the global for back-compat. 957 958 // Add screen options. 959 if ( $this->show_screen_options() ) { 960 $this->render_screen_options(); 961 } 962 ?> 963 </div> 964 <?php 965 if ( ! $this->get_help_tabs() && ! $this->show_screen_options() ) { 966 return; 967 } 968 ?> 969 <div id="screen-meta-links"> 970 <?php if ( $this->show_screen_options() ) : ?> 971 <div id="screen-options-link-wrap" class="hide-if-no-js screen-meta-toggle"> 972 <button type="button" id="show-settings-link" class="button show-settings" aria-controls="screen-options-wrap" aria-expanded="false"><?php _e( 'Screen Options' ); ?></button> 973 </div> 974 <?php 975 endif; 976 if ( $this->get_help_tabs() ) : 977 ?> 978 <div id="contextual-help-link-wrap" class="hide-if-no-js screen-meta-toggle"> 979 <button type="button" id="contextual-help-link" class="button show-settings" aria-controls="contextual-help-wrap" aria-expanded="false"><?php _e( 'Help' ); ?></button> 980 </div> 981 <?php endif; ?> 982 </div> 983 <?php 984 } 985 986 /** 987 * @since 3.3.0 988 * 989 * @global array $wp_meta_boxes Global meta box state. 990 * 991 * @return bool Whether to show the Screen Options tab for the current screen. 992 */ 993 public function show_screen_options() { 994 global $wp_meta_boxes; 995 996 if ( is_bool( $this->_show_screen_options ) ) { 997 return $this->_show_screen_options; 998 } 999 1000 $columns = get_column_headers( $this ); 1001 1002 $show_screen = ! empty( $wp_meta_boxes[ $this->id ] ) || $columns || $this->get_option( 'per_page' ); 1003 1004 $this->_screen_settings = ''; 1005 1006 if ( 'post' === $this->base ) { 1007 $expand = '<fieldset class="editor-expand hidden"><legend>' . __( 'Additional settings' ) . '</legend><label for="editor-expand-toggle">'; 1008 $expand .= '<input type="checkbox" id="editor-expand-toggle"' . checked( get_user_setting( 'editor_expand', 'on' ), 'on', false ) . ' />'; 1009 $expand .= __( 'Enable full-height editor and distraction-free functionality.' ) . '</label></fieldset>'; 1010 $this->_screen_settings = $expand; 1011 } 1012 1013 /** 1014 * Filters the screen settings text displayed in the Screen Options tab. 1015 * 1016 * @since 3.0.0 1017 * 1018 * @param string $screen_settings Screen settings. 1019 * @param WP_Screen $screen WP_Screen object. 1020 */ 1021 $this->_screen_settings = apply_filters( 'screen_settings', $this->_screen_settings, $this ); 1022 1023 if ( $this->_screen_settings || $this->_options ) { 1024 $show_screen = true; 1025 } 1026 1027 /** 1028 * Filters whether to show the Screen Options tab. 1029 * 1030 * @since 3.2.0 1031 * 1032 * @param bool $show_screen Whether to show Screen Options tab. 1033 * Default true. 1034 * @param WP_Screen $screen Current WP_Screen instance. 1035 */ 1036 $this->_show_screen_options = apply_filters( 'screen_options_show_screen', $show_screen, $this ); 1037 return $this->_show_screen_options; 1038 } 1039 1040 /** 1041 * Renders the screen options tab. 1042 * 1043 * @since 3.3.0 1044 * 1045 * @param array $options { 1046 * Options for the tab. 1047 * 1048 * @type bool $wrap Whether the screen-options-wrap div will be included. Defaults to true. 1049 * } 1050 */ 1051 public function render_screen_options( $options = array() ) { 1052 $options = wp_parse_args( 1053 $options, 1054 array( 1055 'wrap' => true, 1056 ) 1057 ); 1058 1059 $wrapper_start = ''; 1060 $wrapper_end = ''; 1061 $form_start = ''; 1062 $form_end = ''; 1063 1064 // Output optional wrapper. 1065 if ( $options['wrap'] ) { 1066 $wrapper_start = '<div id="screen-options-wrap" class="hidden" tabindex="-1" aria-label="' . esc_attr__( 'Screen Options Tab' ) . '">'; 1067 $wrapper_end = '</div>'; 1068 } 1069 1070 // Don't output the form and nonce for the widgets accessibility mode links. 1071 if ( 'widgets' !== $this->base ) { 1072 $form_start = "\n<form id='adv-settings' method='post'>\n"; 1073 $form_end = "\n" . wp_nonce_field( 'screen-options-nonce', 'screenoptionnonce', false, false ) . "\n</form>\n"; 1074 } 1075 1076 echo $wrapper_start . $form_start; 1077 1078 $this->render_meta_boxes_preferences(); 1079 $this->render_list_table_columns_preferences(); 1080 $this->render_screen_layout(); 1081 $this->render_per_page_options(); 1082 $this->render_view_mode(); 1083 echo $this->_screen_settings; 1084 1085 /** 1086 * Filters whether to show the Screen Options submit button. 1087 * 1088 * @since 4.4.0 1089 * 1090 * @param bool $show_button Whether to show Screen Options submit button. 1091 * Default false. 1092 * @param WP_Screen $screen Current WP_Screen instance. 1093 */ 1094 $show_button = apply_filters( 'screen_options_show_submit', false, $this ); 1095 1096 if ( $show_button ) { 1097 submit_button( __( 'Apply' ), 'primary', 'screen-options-apply', true ); 1098 } 1099 1100 echo $form_end . $wrapper_end; 1101 } 1102 1103 /** 1104 * Renders the meta boxes preferences. 1105 * 1106 * @since 4.4.0 1107 * 1108 * @global array $wp_meta_boxes Global meta box state. 1109 */ 1110 public function render_meta_boxes_preferences() { 1111 global $wp_meta_boxes; 1112 1113 if ( ! isset( $wp_meta_boxes[ $this->id ] ) ) { 1114 return; 1115 } 1116 ?> 1117 <fieldset class="metabox-prefs"> 1118 <legend><?php _e( 'Screen elements' ); ?></legend> 1119 <p> 1120 <?php _e( 'Some screen elements can be shown or hidden by using the checkboxes.' ); ?> 1121 <?php _e( 'Expand or collapse the elements by clicking on their headings, and arrange them by dragging their headings or by clicking on the up and down arrows.' ); ?> 1122 </p> 1123 <div class="metabox-prefs-container"> 1124 <?php 1125 1126 meta_box_prefs( $this ); 1127 1128 if ( 'dashboard' === $this->id && has_action( 'welcome_panel' ) && current_user_can( 'edit_theme_options' ) ) { 1129 if ( isset( $_GET['welcome'] ) ) { 1130 $welcome_checked = empty( $_GET['welcome'] ) ? 0 : 1; 1131 update_user_meta( get_current_user_id(), 'show_welcome_panel', $welcome_checked ); 1132 } else { 1133 $welcome_checked = (int) get_user_meta( get_current_user_id(), 'show_welcome_panel', true ); 1134 if ( 2 === $welcome_checked && wp_get_current_user()->user_email !== get_option( 'admin_email' ) ) { 1135 $welcome_checked = false; 1136 } 1137 } 1138 echo '<label for="wp_welcome_panel-hide">'; 1139 echo '<input type="checkbox" id="wp_welcome_panel-hide"' . checked( (bool) $welcome_checked, true, false ) . ' />'; 1140 echo _x( 'Welcome', 'Welcome panel' ) . "</label>\n"; 1141 } 1142 ?> 1143 </div> 1144 </fieldset> 1145 <?php 1146 } 1147 1148 /** 1149 * Renders the list table columns preferences. 1150 * 1151 * @since 4.4.0 1152 */ 1153 public function render_list_table_columns_preferences() { 1154 1155 $columns = get_column_headers( $this ); 1156 $hidden = get_hidden_columns( $this ); 1157 1158 if ( ! $columns ) { 1159 return; 1160 } 1161 1162 $legend = ! empty( $columns['_title'] ) ? $columns['_title'] : __( 'Columns' ); 1163 ?> 1164 <fieldset class="metabox-prefs"> 1165 <legend><?php echo $legend; ?></legend> 1166 <?php 1167 $special = array( '_title', 'cb', 'comment', 'media', 'name', 'title', 'username', 'blogname' ); 1168 1169 foreach ( $columns as $column => $title ) { 1170 // Can't hide these for they are special. 1171 if ( in_array( $column, $special, true ) ) { 1172 continue; 1173 } 1174 1175 if ( empty( $title ) ) { 1176 continue; 1177 } 1178 1179 /* 1180 * The Comments column uses HTML in the display name with some screen 1181 * reader text. Make sure to strip tags from the Comments column 1182 * title and any other custom column title plugins might add. 1183 */ 1184 $title = wp_strip_all_tags( $title ); 1185 1186 $id = "$column-hide"; 1187 echo '<label>'; 1188 echo '<input class="hide-column-tog" name="' . $id . '" type="checkbox" id="' . $id . '" value="' . $column . '"' . checked( ! in_array( $column, $hidden, true ), true, false ) . ' />'; 1189 echo "$title</label>\n"; 1190 } 1191 ?> 1192 </fieldset> 1193 <?php 1194 } 1195 1196 /** 1197 * Renders the option for number of columns on the page. 1198 * 1199 * @since 3.3.0 1200 */ 1201 public function render_screen_layout() { 1202 if ( ! $this->get_option( 'layout_columns' ) ) { 1203 return; 1204 } 1205 1206 $screen_layout_columns = $this->get_columns(); 1207 $num = $this->get_option( 'layout_columns', 'max' ); 1208 1209 ?> 1210 <fieldset class='columns-prefs'> 1211 <legend class="screen-layout"><?php _e( 'Layout' ); ?></legend> 1212 <?php for ( $i = 1; $i <= $num; ++$i ) : ?> 1213 <label class="columns-prefs-<?php echo $i; ?>"> 1214 <input type='radio' name='screen_columns' value='<?php echo esc_attr( $i ); ?>' <?php checked( $screen_layout_columns, $i ); ?> /> 1215 <?php 1216 printf( 1217 /* translators: %s: Number of columns on the page. */ 1218 _n( '%s column', '%s columns', $i ), 1219 number_format_i18n( $i ) 1220 ); 1221 ?> 1222 </label> 1223 <?php endfor; ?> 1224 </fieldset> 1225 <?php 1226 } 1227 1228 /** 1229 * Renders the items per page option. 1230 * 1231 * @since 3.3.0 1232 */ 1233 public function render_per_page_options() { 1234 if ( null === $this->get_option( 'per_page' ) ) { 1235 return; 1236 } 1237 1238 $per_page_label = $this->get_option( 'per_page', 'label' ); 1239 if ( null === $per_page_label ) { 1240 $per_page_label = __( 'Number of items per page:' ); 1241 } 1242 1243 $option = $this->get_option( 'per_page', 'option' ); 1244 if ( ! $option ) { 1245 $option = str_replace( '-', '_', "{$this->id}_per_page" ); 1246 } 1247 1248 $per_page = (int) get_user_option( $option ); 1249 if ( empty( $per_page ) || $per_page < 1 ) { 1250 $per_page = $this->get_option( 'per_page', 'default' ); 1251 if ( ! $per_page ) { 1252 $per_page = 20; 1253 } 1254 } 1255 1256 if ( 'edit_comments_per_page' === $option ) { 1257 $comment_status = $_REQUEST['comment_status'] ?? 'all'; 1258 1259 /** This filter is documented in wp-admin/includes/class-wp-comments-list-table.php */ 1260 $per_page = apply_filters( 'comments_per_page', $per_page, $comment_status ); 1261 } elseif ( 'categories_per_page' === $option ) { 1262 /** This filter is documented in wp-admin/includes/class-wp-terms-list-table.php */ 1263 $per_page = apply_filters( 'edit_categories_per_page', $per_page ); 1264 } else { 1265 /** This filter is documented in wp-admin/includes/class-wp-list-table.php */ 1266 $per_page = apply_filters( "{$option}", $per_page ); 1267 } 1268 1269 // Back compat. 1270 if ( isset( $this->post_type ) ) { 1271 /** This filter is documented in wp-admin/includes/post.php */ 1272 $per_page = apply_filters( 'edit_posts_per_page', $per_page, $this->post_type ); 1273 } 1274 1275 // This needs a submit button. 1276 add_filter( 'screen_options_show_submit', '__return_true' ); 1277 1278 ?> 1279 <fieldset class="screen-options"> 1280 <legend><?php _e( 'Pagination' ); ?></legend> 1281 <?php if ( $per_page_label ) : ?> 1282 <label for="<?php echo esc_attr( $option ); ?>"><?php echo $per_page_label; ?></label> 1283 <input type="number" step="1" min="1" max="999" class="screen-per-page" name="wp_screen_options[value]" 1284 id="<?php echo esc_attr( $option ); ?>" 1285 value="<?php echo esc_attr( $per_page ); ?>" /> 1286 <?php endif; ?> 1287 <input type="hidden" name="wp_screen_options[option]" value="<?php echo esc_attr( $option ); ?>" /> 1288 </fieldset> 1289 <?php 1290 } 1291 1292 /** 1293 * Renders the list table view mode preferences. 1294 * 1295 * @since 4.4.0 1296 * 1297 * @global string $mode List table view mode. 1298 */ 1299 public function render_view_mode() { 1300 global $mode; 1301 1302 $screen = get_current_screen(); 1303 1304 // Currently only enabled for posts and comments lists. 1305 if ( 'edit' !== $screen->base && 'edit-comments' !== $screen->base ) { 1306 return; 1307 } 1308 1309 $view_mode_post_types = get_post_types( array( 'show_ui' => true ) ); 1310 1311 /** 1312 * Filters the post types that have different view mode options. 1313 * 1314 * @since 4.4.0 1315 * 1316 * @param string[] $view_mode_post_types Array of post types that can change view modes. 1317 * Default post types with show_ui on. 1318 */ 1319 $view_mode_post_types = apply_filters( 'view_mode_post_types', $view_mode_post_types ); 1320 1321 if ( 'edit' === $screen->base && ! in_array( $this->post_type, $view_mode_post_types, true ) ) { 1322 return; 1323 } 1324 1325 if ( ! isset( $mode ) ) { 1326 $mode = get_user_setting( 'posts_list_mode', 'list' ); 1327 } 1328 1329 // This needs a submit button. 1330 add_filter( 'screen_options_show_submit', '__return_true' ); 1331 ?> 1332 <fieldset class="metabox-prefs view-mode"> 1333 <legend><?php _e( 'View mode' ); ?></legend> 1334 <label for="list-view-mode"> 1335 <input id="list-view-mode" type="radio" name="mode" value="list" <?php checked( 'list', $mode ); ?> /> 1336 <?php _e( 'Compact view' ); ?> 1337 </label> 1338 <label for="excerpt-view-mode"> 1339 <input id="excerpt-view-mode" type="radio" name="mode" value="excerpt" <?php checked( 'excerpt', $mode ); ?> /> 1340 <?php _e( 'Extended view' ); ?> 1341 </label> 1342 </fieldset> 1343 <?php 1344 } 1345 1346 /** 1347 * Renders screen reader text. 1348 * 1349 * @since 4.4.0 1350 * 1351 * @param string $key The screen reader text array named key. 1352 * @param string $tag Optional. The HTML tag to wrap the screen reader text. Default h2. 1353 */ 1354 public function render_screen_reader_content( $key = '', $tag = 'h2' ) { 1355 1356 if ( ! isset( $this->_screen_reader_content[ $key ] ) ) { 1357 return; 1358 } 1359 echo "<$tag class='screen-reader-text'>" . $this->_screen_reader_content[ $key ] . "</$tag>"; 1360 } 1361 }
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