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1 <?php 2 /** 3 * Theme, template, and stylesheet functions. 4 * 5 * @package WordPress 6 * @subpackage Theme 7 */ 8 9 /** 10 * Returns an array of WP_Theme objects based on the arguments. 11 * 12 * Despite advances over get_themes(), this function is quite expensive, and grows 13 * linearly with additional themes. Stick to wp_get_theme() if possible. 14 * 15 * @since 3.4.0 16 * 17 * @global array $wp_theme_directories 18 * 19 * @param array $args { 20 * Optional. The search arguments. 21 * 22 * @type mixed $errors True to return themes with errors, false to return 23 * themes without errors, null to return all themes. 24 * Default false. 25 * @type mixed $allowed (Multisite) True to return only allowed themes for a site. 26 * False to return only disallowed themes for a site. 27 * 'site' to return only site-allowed themes. 28 * 'network' to return only network-allowed themes. 29 * Null to return all themes. Default null. 30 * @type int $blog_id (Multisite) The blog ID used to calculate which themes 31 * are allowed. Default 0, synonymous for the current blog. 32 * } 33 * @return WP_Theme[] Array of WP_Theme objects. 34 */ 35 function wp_get_themes( $args = array() ) { 36 global $wp_theme_directories; 37 38 $defaults = array( 39 'errors' => false, 40 'allowed' => null, 41 'blog_id' => 0, 42 ); 43 $args = wp_parse_args( $args, $defaults ); 44 45 $theme_directories = search_theme_directories(); 46 47 if ( is_array( $wp_theme_directories ) && count( $wp_theme_directories ) > 1 ) { 48 // Make sure the active theme wins out, in case search_theme_directories() picks the wrong 49 // one in the case of a conflict. (Normally, last registered theme root wins.) 50 $current_theme = get_stylesheet(); 51 if ( isset( $theme_directories[ $current_theme ] ) ) { 52 $root_of_current_theme = get_raw_theme_root( $current_theme ); 53 if ( ! in_array( $root_of_current_theme, $wp_theme_directories, true ) ) { 54 $root_of_current_theme = WP_CONTENT_DIR . $root_of_current_theme; 55 } 56 $theme_directories[ $current_theme ]['theme_root'] = $root_of_current_theme; 57 } 58 } 59 60 if ( empty( $theme_directories ) ) { 61 return array(); 62 } 63 64 if ( is_multisite() && null !== $args['allowed'] ) { 65 $allowed = $args['allowed']; 66 if ( 'network' === $allowed ) { 67 $theme_directories = array_intersect_key( $theme_directories, WP_Theme::get_allowed_on_network() ); 68 } elseif ( 'site' === $allowed ) { 69 $theme_directories = array_intersect_key( $theme_directories, WP_Theme::get_allowed_on_site( $args['blog_id'] ) ); 70 } elseif ( $allowed ) { 71 $theme_directories = array_intersect_key( $theme_directories, WP_Theme::get_allowed( $args['blog_id'] ) ); 72 } else { 73 $theme_directories = array_diff_key( $theme_directories, WP_Theme::get_allowed( $args['blog_id'] ) ); 74 } 75 } 76 77 $themes = array(); 78 static $_themes = array(); 79 80 foreach ( $theme_directories as $theme => $theme_root ) { 81 if ( isset( $_themes[ $theme_root['theme_root'] . '/' . $theme ] ) ) { 82 $themes[ $theme ] = $_themes[ $theme_root['theme_root'] . '/' . $theme ]; 83 } else { 84 $themes[ $theme ] = new WP_Theme( $theme, $theme_root['theme_root'] ); 85 86 $_themes[ $theme_root['theme_root'] . '/' . $theme ] = $themes[ $theme ]; 87 } 88 } 89 90 if ( null !== $args['errors'] ) { 91 foreach ( $themes as $theme => $wp_theme ) { 92 if ( $wp_theme->errors() != $args['errors'] ) { 93 unset( $themes[ $theme ] ); 94 } 95 } 96 } 97 98 return $themes; 99 } 100 101 /** 102 * Gets a WP_Theme object for a theme. 103 * 104 * @since 3.4.0 105 * 106 * @global array $wp_theme_directories 107 * 108 * @param string $stylesheet Optional. Directory name for the theme. Defaults to active theme. 109 * @param string $theme_root Optional. Absolute path of the theme root to look in. 110 * If not specified, get_raw_theme_root() is used to calculate 111 * the theme root for the $stylesheet provided (or active theme). 112 * @return WP_Theme Theme object. Be sure to check the object's exists() method 113 * if you need to confirm the theme's existence. 114 */ 115 function wp_get_theme( $stylesheet = '', $theme_root = '' ) { 116 global $wp_theme_directories; 117 118 if ( empty( $stylesheet ) ) { 119 $stylesheet = get_stylesheet(); 120 } 121 122 if ( empty( $theme_root ) ) { 123 $theme_root = get_raw_theme_root( $stylesheet ); 124 if ( false === $theme_root ) { 125 $theme_root = WP_CONTENT_DIR . '/themes'; 126 } elseif ( ! in_array( $theme_root, (array) $wp_theme_directories, true ) ) { 127 $theme_root = WP_CONTENT_DIR . $theme_root; 128 } 129 } 130 131 return new WP_Theme( $stylesheet, $theme_root ); 132 } 133 134 /** 135 * Clears the cache held by get_theme_roots() and WP_Theme. 136 * 137 * @since 3.5.0 138 * @param bool $clear_update_cache Whether to clear the theme updates cache. 139 */ 140 function wp_clean_themes_cache( $clear_update_cache = true ) { 141 if ( $clear_update_cache ) { 142 delete_site_transient( 'update_themes' ); 143 } 144 search_theme_directories( true ); 145 foreach ( wp_get_themes( array( 'errors' => null ) ) as $theme ) { 146 $theme->cache_delete(); 147 } 148 } 149 150 /** 151 * Whether a child theme is in use. 152 * 153 * @since 3.0.0 154 * 155 * @return bool True if a child theme is in use, false otherwise. 156 */ 157 function is_child_theme() { 158 return ( TEMPLATEPATH !== STYLESHEETPATH ); 159 } 160 161 /** 162 * Retrieves name of the current stylesheet. 163 * 164 * The theme name that is currently set as the front end theme. 165 * 166 * For all intents and purposes, the template name and the stylesheet name 167 * are going to be the same for most cases. 168 * 169 * @since 1.5.0 170 * 171 * @return string Stylesheet name. 172 */ 173 function get_stylesheet() { 174 /** 175 * Filters the name of current stylesheet. 176 * 177 * @since 1.5.0 178 * 179 * @param string $stylesheet Name of the current stylesheet. 180 */ 181 return apply_filters( 'stylesheet', get_option( 'stylesheet' ) ); 182 } 183 184 /** 185 * Retrieves stylesheet directory path for the active theme. 186 * 187 * @since 1.5.0 188 * 189 * @return string Path to active theme's stylesheet directory. 190 */ 191 function get_stylesheet_directory() { 192 $stylesheet = get_stylesheet(); 193 $theme_root = get_theme_root( $stylesheet ); 194 $stylesheet_dir = "$theme_root/$stylesheet"; 195 196 /** 197 * Filters the stylesheet directory path for the active theme. 198 * 199 * @since 1.5.0 200 * 201 * @param string $stylesheet_dir Absolute path to the active theme. 202 * @param string $stylesheet Directory name of the active theme. 203 * @param string $theme_root Absolute path to themes directory. 204 */ 205 return apply_filters( 'stylesheet_directory', $stylesheet_dir, $stylesheet, $theme_root ); 206 } 207 208 /** 209 * Retrieves stylesheet directory URI for the active theme. 210 * 211 * @since 1.5.0 212 * 213 * @return string URI to active theme's stylesheet directory. 214 */ 215 function get_stylesheet_directory_uri() { 216 $stylesheet = str_replace( '%2F', '/', rawurlencode( get_stylesheet() ) ); 217 $theme_root_uri = get_theme_root_uri( $stylesheet ); 218 $stylesheet_dir_uri = "$theme_root_uri/$stylesheet"; 219 220 /** 221 * Filters the stylesheet directory URI. 222 * 223 * @since 1.5.0 224 * 225 * @param string $stylesheet_dir_uri Stylesheet directory URI. 226 * @param string $stylesheet Name of the activated theme's directory. 227 * @param string $theme_root_uri Themes root URI. 228 */ 229 return apply_filters( 'stylesheet_directory_uri', $stylesheet_dir_uri, $stylesheet, $theme_root_uri ); 230 } 231 232 /** 233 * Retrieves stylesheet URI for the active theme. 234 * 235 * The stylesheet file name is 'style.css' which is appended to the stylesheet directory URI path. 236 * See get_stylesheet_directory_uri(). 237 * 238 * @since 1.5.0 239 * 240 * @return string URI to active theme's stylesheet. 241 */ 242 function get_stylesheet_uri() { 243 $stylesheet_dir_uri = get_stylesheet_directory_uri(); 244 $stylesheet_uri = $stylesheet_dir_uri . '/style.css'; 245 /** 246 * Filters the URI of the active theme stylesheet. 247 * 248 * @since 1.5.0 249 * 250 * @param string $stylesheet_uri Stylesheet URI for the active theme/child theme. 251 * @param string $stylesheet_dir_uri Stylesheet directory URI for the active theme/child theme. 252 */ 253 return apply_filters( 'stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri ); 254 } 255 256 /** 257 * Retrieves the localized stylesheet URI. 258 * 259 * The stylesheet directory for the localized stylesheet files are located, by 260 * default, in the base theme directory. The name of the locale file will be the 261 * locale followed by '.css'. If that does not exist, then the text direction 262 * stylesheet will be checked for existence, for example 'ltr.css'. 263 * 264 * The theme may change the location of the stylesheet directory by either using 265 * the {@see 'stylesheet_directory_uri'} or {@see 'locale_stylesheet_uri'} filters. 266 * 267 * If you want to change the location of the stylesheet files for the entire 268 * WordPress workflow, then change the former. If you just have the locale in a 269 * separate folder, then change the latter. 270 * 271 * @since 2.1.0 272 * 273 * @global WP_Locale $wp_locale WordPress date and time locale object. 274 * 275 * @return string URI to active theme's localized stylesheet. 276 */ 277 function get_locale_stylesheet_uri() { 278 global $wp_locale; 279 $stylesheet_dir_uri = get_stylesheet_directory_uri(); 280 $dir = get_stylesheet_directory(); 281 $locale = get_locale(); 282 if ( file_exists( "$dir/$locale.css" ) ) { 283 $stylesheet_uri = "$stylesheet_dir_uri/$locale.css"; 284 } elseif ( ! empty( $wp_locale->text_direction ) && file_exists( "$dir/{$wp_locale->text_direction}.css" ) ) { 285 $stylesheet_uri = "$stylesheet_dir_uri/{$wp_locale->text_direction}.css"; 286 } else { 287 $stylesheet_uri = ''; 288 } 289 /** 290 * Filters the localized stylesheet URI. 291 * 292 * @since 2.1.0 293 * 294 * @param string $stylesheet_uri Localized stylesheet URI. 295 * @param string $stylesheet_dir_uri Stylesheet directory URI. 296 */ 297 return apply_filters( 'locale_stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri ); 298 } 299 300 /** 301 * Retrieves name of the active theme. 302 * 303 * @since 1.5.0 304 * 305 * @return string Template name. 306 */ 307 function get_template() { 308 /** 309 * Filters the name of the active theme. 310 * 311 * @since 1.5.0 312 * 313 * @param string $template active theme's directory name. 314 */ 315 return apply_filters( 'template', get_option( 'template' ) ); 316 } 317 318 /** 319 * Retrieves template directory path for the active theme. 320 * 321 * @since 1.5.0 322 * 323 * @return string Path to active theme's template directory. 324 */ 325 function get_template_directory() { 326 $template = get_template(); 327 $theme_root = get_theme_root( $template ); 328 $template_dir = "$theme_root/$template"; 329 330 /** 331 * Filters the active theme directory path. 332 * 333 * @since 1.5.0 334 * 335 * @param string $template_dir The path of the active theme directory. 336 * @param string $template Directory name of the active theme. 337 * @param string $theme_root Absolute path to the themes directory. 338 */ 339 return apply_filters( 'template_directory', $template_dir, $template, $theme_root ); 340 } 341 342 /** 343 * Retrieves template directory URI for the active theme. 344 * 345 * @since 1.5.0 346 * 347 * @return string URI to active theme's template directory. 348 */ 349 function get_template_directory_uri() { 350 $template = str_replace( '%2F', '/', rawurlencode( get_template() ) ); 351 $theme_root_uri = get_theme_root_uri( $template ); 352 $template_dir_uri = "$theme_root_uri/$template"; 353 354 /** 355 * Filters the active theme directory URI. 356 * 357 * @since 1.5.0 358 * 359 * @param string $template_dir_uri The URI of the active theme directory. 360 * @param string $template Directory name of the active theme. 361 * @param string $theme_root_uri The themes root URI. 362 */ 363 return apply_filters( 'template_directory_uri', $template_dir_uri, $template, $theme_root_uri ); 364 } 365 366 /** 367 * Retrieves theme roots. 368 * 369 * @since 2.9.0 370 * 371 * @global array $wp_theme_directories 372 * 373 * @return array|string An array of theme roots keyed by template/stylesheet 374 * or a single theme root if all themes have the same root. 375 */ 376 function get_theme_roots() { 377 global $wp_theme_directories; 378 379 if ( ! is_array( $wp_theme_directories ) || count( $wp_theme_directories ) <= 1 ) { 380 return '/themes'; 381 } 382 383 $theme_roots = get_site_transient( 'theme_roots' ); 384 if ( false === $theme_roots ) { 385 search_theme_directories( true ); // Regenerate the transient. 386 $theme_roots = get_site_transient( 'theme_roots' ); 387 } 388 return $theme_roots; 389 } 390 391 /** 392 * Registers a directory that contains themes. 393 * 394 * @since 2.9.0 395 * 396 * @global array $wp_theme_directories 397 * 398 * @param string $directory Either the full filesystem path to a theme folder 399 * or a folder within WP_CONTENT_DIR. 400 * @return bool True if successfully registered a directory that contains themes, 401 * false if the directory does not exist. 402 */ 403 function register_theme_directory( $directory ) { 404 global $wp_theme_directories; 405 406 if ( ! file_exists( $directory ) ) { 407 // Try prepending as the theme directory could be relative to the content directory. 408 $directory = WP_CONTENT_DIR . '/' . $directory; 409 // If this directory does not exist, return and do not register. 410 if ( ! file_exists( $directory ) ) { 411 return false; 412 } 413 } 414 415 if ( ! is_array( $wp_theme_directories ) ) { 416 $wp_theme_directories = array(); 417 } 418 419 $untrailed = untrailingslashit( $directory ); 420 if ( ! empty( $untrailed ) && ! in_array( $untrailed, $wp_theme_directories, true ) ) { 421 $wp_theme_directories[] = $untrailed; 422 } 423 424 return true; 425 } 426 427 /** 428 * Searches all registered theme directories for complete and valid themes. 429 * 430 * @since 2.9.0 431 * 432 * @global array $wp_theme_directories 433 * 434 * @param bool $force Optional. Whether to force a new directory scan. Default false. 435 * @return array|false Valid themes found on success, false on failure. 436 */ 437 function search_theme_directories( $force = false ) { 438 global $wp_theme_directories; 439 static $found_themes = null; 440 441 if ( empty( $wp_theme_directories ) ) { 442 return false; 443 } 444 445 if ( ! $force && isset( $found_themes ) ) { 446 return $found_themes; 447 } 448 449 $found_themes = array(); 450 451 $wp_theme_directories = (array) $wp_theme_directories; 452 $relative_theme_roots = array(); 453 454 /* 455 * Set up maybe-relative, maybe-absolute array of theme directories. 456 * We always want to return absolute, but we need to cache relative 457 * to use in get_theme_root(). 458 */ 459 foreach ( $wp_theme_directories as $theme_root ) { 460 if ( 0 === strpos( $theme_root, WP_CONTENT_DIR ) ) { 461 $relative_theme_roots[ str_replace( WP_CONTENT_DIR, '', $theme_root ) ] = $theme_root; 462 } else { 463 $relative_theme_roots[ $theme_root ] = $theme_root; 464 } 465 } 466 467 /** 468 * Filters whether to get the cache of the registered theme directories. 469 * 470 * @since 3.4.0 471 * 472 * @param bool $cache_expiration Whether to get the cache of the theme directories. Default false. 473 * @param string $context The class or function name calling the filter. 474 */ 475 $cache_expiration = apply_filters( 'wp_cache_themes_persistently', false, 'search_theme_directories' ); 476 477 if ( $cache_expiration ) { 478 $cached_roots = get_site_transient( 'theme_roots' ); 479 if ( is_array( $cached_roots ) ) { 480 foreach ( $cached_roots as $theme_dir => $theme_root ) { 481 // A cached theme root is no longer around, so skip it. 482 if ( ! isset( $relative_theme_roots[ $theme_root ] ) ) { 483 continue; 484 } 485 $found_themes[ $theme_dir ] = array( 486 'theme_file' => $theme_dir . '/style.css', 487 'theme_root' => $relative_theme_roots[ $theme_root ], // Convert relative to absolute. 488 ); 489 } 490 return $found_themes; 491 } 492 if ( ! is_int( $cache_expiration ) ) { 493 $cache_expiration = 30 * MINUTE_IN_SECONDS; 494 } 495 } else { 496 $cache_expiration = 30 * MINUTE_IN_SECONDS; 497 } 498 499 /* Loop the registered theme directories and extract all themes */ 500 foreach ( $wp_theme_directories as $theme_root ) { 501 502 // Start with directories in the root of the active theme directory. 503 $dirs = @ scandir( $theme_root ); 504 if ( ! $dirs ) { 505 trigger_error( "$theme_root is not readable", E_USER_NOTICE ); 506 continue; 507 } 508 foreach ( $dirs as $dir ) { 509 if ( ! is_dir( $theme_root . '/' . $dir ) || '.' === $dir[0] || 'CVS' === $dir ) { 510 continue; 511 } 512 if ( file_exists( $theme_root . '/' . $dir . '/style.css' ) ) { 513 // wp-content/themes/a-single-theme 514 // wp-content/themes is $theme_root, a-single-theme is $dir. 515 $found_themes[ $dir ] = array( 516 'theme_file' => $dir . '/style.css', 517 'theme_root' => $theme_root, 518 ); 519 } else { 520 $found_theme = false; 521 // wp-content/themes/a-folder-of-themes/* 522 // wp-content/themes is $theme_root, a-folder-of-themes is $dir, then themes are $sub_dirs. 523 $sub_dirs = @ scandir( $theme_root . '/' . $dir ); 524 if ( ! $sub_dirs ) { 525 trigger_error( "$theme_root/$dir is not readable", E_USER_NOTICE ); 526 continue; 527 } 528 foreach ( $sub_dirs as $sub_dir ) { 529 if ( ! is_dir( $theme_root . '/' . $dir . '/' . $sub_dir ) || '.' === $dir[0] || 'CVS' === $dir ) { 530 continue; 531 } 532 if ( ! file_exists( $theme_root . '/' . $dir . '/' . $sub_dir . '/style.css' ) ) { 533 continue; 534 } 535 $found_themes[ $dir . '/' . $sub_dir ] = array( 536 'theme_file' => $dir . '/' . $sub_dir . '/style.css', 537 'theme_root' => $theme_root, 538 ); 539 $found_theme = true; 540 } 541 // Never mind the above, it's just a theme missing a style.css. 542 // Return it; WP_Theme will catch the error. 543 if ( ! $found_theme ) { 544 $found_themes[ $dir ] = array( 545 'theme_file' => $dir . '/style.css', 546 'theme_root' => $theme_root, 547 ); 548 } 549 } 550 } 551 } 552 553 asort( $found_themes ); 554 555 $theme_roots = array(); 556 $relative_theme_roots = array_flip( $relative_theme_roots ); 557 558 foreach ( $found_themes as $theme_dir => $theme_data ) { 559 $theme_roots[ $theme_dir ] = $relative_theme_roots[ $theme_data['theme_root'] ]; // Convert absolute to relative. 560 } 561 562 if ( get_site_transient( 'theme_roots' ) != $theme_roots ) { 563 set_site_transient( 'theme_roots', $theme_roots, $cache_expiration ); 564 } 565 566 return $found_themes; 567 } 568 569 /** 570 * Retrieves path to themes directory. 571 * 572 * Does not have trailing slash. 573 * 574 * @since 1.5.0 575 * 576 * @global array $wp_theme_directories 577 * 578 * @param string $stylesheet_or_template Optional. The stylesheet or template name of the theme. 579 * Default is to leverage the main theme root. 580 * @return string Themes directory path. 581 */ 582 function get_theme_root( $stylesheet_or_template = '' ) { 583 global $wp_theme_directories; 584 585 $theme_root = ''; 586 587 if ( $stylesheet_or_template ) { 588 $theme_root = get_raw_theme_root( $stylesheet_or_template ); 589 if ( $theme_root ) { 590 // Always prepend WP_CONTENT_DIR unless the root currently registered as a theme directory. 591 // This gives relative theme roots the benefit of the doubt when things go haywire. 592 if ( ! in_array( $theme_root, (array) $wp_theme_directories, true ) ) { 593 $theme_root = WP_CONTENT_DIR . $theme_root; 594 } 595 } 596 } 597 598 if ( ! $theme_root ) { 599 $theme_root = WP_CONTENT_DIR . '/themes'; 600 } 601 602 /** 603 * Filters the absolute path to the themes directory. 604 * 605 * @since 1.5.0 606 * 607 * @param string $theme_root Absolute path to themes directory. 608 */ 609 return apply_filters( 'theme_root', $theme_root ); 610 } 611 612 /** 613 * Retrieves URI for themes directory. 614 * 615 * Does not have trailing slash. 616 * 617 * @since 1.5.0 618 * 619 * @global array $wp_theme_directories 620 * 621 * @param string $stylesheet_or_template Optional. The stylesheet or template name of the theme. 622 * Default is to leverage the main theme root. 623 * @param string $theme_root Optional. The theme root for which calculations will be based, 624 * preventing the need for a get_raw_theme_root() call. Default empty. 625 * @return string Themes directory URI. 626 */ 627 function get_theme_root_uri( $stylesheet_or_template = '', $theme_root = '' ) { 628 global $wp_theme_directories; 629 630 if ( $stylesheet_or_template && ! $theme_root ) { 631 $theme_root = get_raw_theme_root( $stylesheet_or_template ); 632 } 633 634 if ( $stylesheet_or_template && $theme_root ) { 635 if ( in_array( $theme_root, (array) $wp_theme_directories, true ) ) { 636 // Absolute path. Make an educated guess. YMMV -- but note the filter below. 637 if ( 0 === strpos( $theme_root, WP_CONTENT_DIR ) ) { 638 $theme_root_uri = content_url( str_replace( WP_CONTENT_DIR, '', $theme_root ) ); 639 } elseif ( 0 === strpos( $theme_root, ABSPATH ) ) { 640 $theme_root_uri = site_url( str_replace( ABSPATH, '', $theme_root ) ); 641 } elseif ( 0 === strpos( $theme_root, WP_PLUGIN_DIR ) || 0 === strpos( $theme_root, WPMU_PLUGIN_DIR ) ) { 642 $theme_root_uri = plugins_url( basename( $theme_root ), $theme_root ); 643 } else { 644 $theme_root_uri = $theme_root; 645 } 646 } else { 647 $theme_root_uri = content_url( $theme_root ); 648 } 649 } else { 650 $theme_root_uri = content_url( 'themes' ); 651 } 652 653 /** 654 * Filters the URI for themes directory. 655 * 656 * @since 1.5.0 657 * 658 * @param string $theme_root_uri The URI for themes directory. 659 * @param string $siteurl WordPress web address which is set in General Options. 660 * @param string $stylesheet_or_template The stylesheet or template name of the theme. 661 */ 662 return apply_filters( 'theme_root_uri', $theme_root_uri, get_option( 'siteurl' ), $stylesheet_or_template ); 663 } 664 665 /** 666 * Gets the raw theme root relative to the content directory with no filters applied. 667 * 668 * @since 3.1.0 669 * 670 * @global array $wp_theme_directories 671 * 672 * @param string $stylesheet_or_template The stylesheet or template name of the theme. 673 * @param bool $skip_cache Optional. Whether to skip the cache. 674 * Defaults to false, meaning the cache is used. 675 * @return string Theme root. 676 */ 677 function get_raw_theme_root( $stylesheet_or_template, $skip_cache = false ) { 678 global $wp_theme_directories; 679 680 if ( ! is_array( $wp_theme_directories ) || count( $wp_theme_directories ) <= 1 ) { 681 return '/themes'; 682 } 683 684 $theme_root = false; 685 686 // If requesting the root for the active theme, consult options to avoid calling get_theme_roots(). 687 if ( ! $skip_cache ) { 688 if ( get_option( 'stylesheet' ) == $stylesheet_or_template ) { 689 $theme_root = get_option( 'stylesheet_root' ); 690 } elseif ( get_option( 'template' ) == $stylesheet_or_template ) { 691 $theme_root = get_option( 'template_root' ); 692 } 693 } 694 695 if ( empty( $theme_root ) ) { 696 $theme_roots = get_theme_roots(); 697 if ( ! empty( $theme_roots[ $stylesheet_or_template ] ) ) { 698 $theme_root = $theme_roots[ $stylesheet_or_template ]; 699 } 700 } 701 702 return $theme_root; 703 } 704 705 /** 706 * Displays localized stylesheet link element. 707 * 708 * @since 2.1.0 709 */ 710 function locale_stylesheet() { 711 $stylesheet = get_locale_stylesheet_uri(); 712 if ( empty( $stylesheet ) ) { 713 return; 714 } 715 716 $type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"'; 717 718 printf( 719 '<link rel="stylesheet" href="%s"%s media="screen" />', 720 $stylesheet, 721 $type_attr 722 ); 723 } 724 725 /** 726 * Switches the theme. 727 * 728 * Accepts one argument: $stylesheet of the theme. It also accepts an additional function signature 729 * of two arguments: $template then $stylesheet. This is for backward compatibility. 730 * 731 * @since 2.5.0 732 * 733 * @global array $wp_theme_directories 734 * @global WP_Customize_Manager $wp_customize 735 * @global array $sidebars_widgets 736 * 737 * @param string $stylesheet Stylesheet name. 738 */ 739 function switch_theme( $stylesheet ) { 740 global $wp_theme_directories, $wp_customize, $sidebars_widgets; 741 742 $requirements = validate_theme_requirements( $stylesheet ); 743 if ( is_wp_error( $requirements ) ) { 744 wp_die( $requirements ); 745 } 746 747 $_sidebars_widgets = null; 748 if ( 'wp_ajax_customize_save' === current_action() ) { 749 $old_sidebars_widgets_data_setting = $wp_customize->get_setting( 'old_sidebars_widgets_data' ); 750 if ( $old_sidebars_widgets_data_setting ) { 751 $_sidebars_widgets = $wp_customize->post_value( $old_sidebars_widgets_data_setting ); 752 } 753 } elseif ( is_array( $sidebars_widgets ) ) { 754 $_sidebars_widgets = $sidebars_widgets; 755 } 756 757 if ( is_array( $_sidebars_widgets ) ) { 758 set_theme_mod( 759 'sidebars_widgets', 760 array( 761 'time' => time(), 762 'data' => $_sidebars_widgets, 763 ) 764 ); 765 } 766 767 $nav_menu_locations = get_theme_mod( 'nav_menu_locations' ); 768 update_option( 'theme_switch_menu_locations', $nav_menu_locations ); 769 770 if ( func_num_args() > 1 ) { 771 $stylesheet = func_get_arg( 1 ); 772 } 773 774 $old_theme = wp_get_theme(); 775 $new_theme = wp_get_theme( $stylesheet ); 776 $template = $new_theme->get_template(); 777 778 if ( wp_is_recovery_mode() ) { 779 $paused_themes = wp_paused_themes(); 780 $paused_themes->delete( $old_theme->get_stylesheet() ); 781 $paused_themes->delete( $old_theme->get_template() ); 782 } 783 784 update_option( 'template', $template ); 785 update_option( 'stylesheet', $stylesheet ); 786 787 if ( count( $wp_theme_directories ) > 1 ) { 788 update_option( 'template_root', get_raw_theme_root( $template, true ) ); 789 update_option( 'stylesheet_root', get_raw_theme_root( $stylesheet, true ) ); 790 } else { 791 delete_option( 'template_root' ); 792 delete_option( 'stylesheet_root' ); 793 } 794 795 $new_name = $new_theme->get( 'Name' ); 796 797 update_option( 'current_theme', $new_name ); 798 799 // Migrate from the old mods_{name} option to theme_mods_{slug}. 800 if ( is_admin() && false === get_option( 'theme_mods_' . $stylesheet ) ) { 801 $default_theme_mods = (array) get_option( 'mods_' . $new_name ); 802 if ( ! empty( $nav_menu_locations ) && empty( $default_theme_mods['nav_menu_locations'] ) ) { 803 $default_theme_mods['nav_menu_locations'] = $nav_menu_locations; 804 } 805 add_option( "theme_mods_$stylesheet", $default_theme_mods ); 806 } else { 807 /* 808 * Since retrieve_widgets() is called when initializing a theme in the Customizer, 809 * we need to remove the theme mods to avoid overwriting changes made via 810 * the Customizer when accessing wp-admin/widgets.php. 811 */ 812 if ( 'wp_ajax_customize_save' === current_action() ) { 813 remove_theme_mod( 'sidebars_widgets' ); 814 } 815 } 816 817 update_option( 'theme_switched', $old_theme->get_stylesheet() ); 818 819 /** 820 * Fires after the theme is switched. 821 * 822 * @since 1.5.0 823 * @since 4.5.0 Introduced the `$old_theme` parameter. 824 * 825 * @param string $new_name Name of the new theme. 826 * @param WP_Theme $new_theme WP_Theme instance of the new theme. 827 * @param WP_Theme $old_theme WP_Theme instance of the old theme. 828 */ 829 do_action( 'switch_theme', $new_name, $new_theme, $old_theme ); 830 } 831 832 /** 833 * Checks that the active theme has the required files. 834 * 835 * Standalone themes need to have a `templates/index.html` or `index.php` template file. 836 * Child themes need to have a `Template` header in the `style.css` stylesheet. 837 * 838 * Does not initially check the default theme, which is the fallback and should always exist. 839 * But if it doesn't exist, it'll fall back to the latest core default theme that does exist. 840 * Will switch theme to the fallback theme if active theme does not validate. 841 * 842 * You can use the {@see 'validate_current_theme'} filter to return false to disable 843 * this functionality. 844 * 845 * @since 1.5.0 846 * @since 6.0.0 Removed the requirement for block themes to have an `index.php` template. 847 * 848 * @see WP_DEFAULT_THEME 849 * 850 * @return bool 851 */ 852 function validate_current_theme() { 853 /** 854 * Filters whether to validate the active theme. 855 * 856 * @since 2.7.0 857 * 858 * @param bool $validate Whether to validate the active theme. Default true. 859 */ 860 if ( wp_installing() || ! apply_filters( 'validate_current_theme', true ) ) { 861 return true; 862 } 863 864 if ( ! file_exists( get_template_directory() . '/templates/index.html' ) 865 && ! file_exists( get_template_directory() . '/index.php' ) 866 ) { 867 // Invalid. 868 } elseif ( ! file_exists( get_template_directory() . '/style.css' ) ) { 869 // Invalid. 870 } elseif ( is_child_theme() && ! file_exists( get_stylesheet_directory() . '/style.css' ) ) { 871 // Invalid. 872 } else { 873 // Valid. 874 return true; 875 } 876 877 $default = wp_get_theme( WP_DEFAULT_THEME ); 878 if ( $default->exists() ) { 879 switch_theme( WP_DEFAULT_THEME ); 880 return false; 881 } 882 883 /** 884 * If we're in an invalid state but WP_DEFAULT_THEME doesn't exist, 885 * switch to the latest core default theme that's installed. 886 * 887 * If it turns out that this latest core default theme is our current 888 * theme, then there's nothing we can do about that, so we have to bail, 889 * rather than going into an infinite loop. (This is why there are 890 * checks against WP_DEFAULT_THEME above, also.) We also can't do anything 891 * if it turns out there is no default theme installed. (That's `false`.) 892 */ 893 $default = WP_Theme::get_core_default_theme(); 894 if ( false === $default || get_stylesheet() == $default->get_stylesheet() ) { 895 return true; 896 } 897 898 switch_theme( $default->get_stylesheet() ); 899 return false; 900 } 901 902 /** 903 * Validates the theme requirements for WordPress version and PHP version. 904 * 905 * Uses the information from `Requires at least` and `Requires PHP` headers 906 * defined in the theme's `style.css` file. 907 * 908 * @since 5.5.0 909 * @since 5.8.0 Removed support for using `readme.txt` as a fallback. 910 * 911 * @param string $stylesheet Directory name for the theme. 912 * @return true|WP_Error True if requirements are met, WP_Error on failure. 913 */ 914 function validate_theme_requirements( $stylesheet ) { 915 $theme = wp_get_theme( $stylesheet ); 916 917 $requirements = array( 918 'requires' => ! empty( $theme->get( 'RequiresWP' ) ) ? $theme->get( 'RequiresWP' ) : '', 919 'requires_php' => ! empty( $theme->get( 'RequiresPHP' ) ) ? $theme->get( 'RequiresPHP' ) : '', 920 ); 921 922 $compatible_wp = is_wp_version_compatible( $requirements['requires'] ); 923 $compatible_php = is_php_version_compatible( $requirements['requires_php'] ); 924 925 if ( ! $compatible_wp && ! $compatible_php ) { 926 return new WP_Error( 927 'theme_wp_php_incompatible', 928 sprintf( 929 /* translators: %s: Theme name. */ 930 _x( '<strong>Error:</strong> Current WordPress and PHP versions do not meet minimum requirements for %s.', 'theme' ), 931 $theme->display( 'Name' ) 932 ) 933 ); 934 } elseif ( ! $compatible_php ) { 935 return new WP_Error( 936 'theme_php_incompatible', 937 sprintf( 938 /* translators: %s: Theme name. */ 939 _x( '<strong>Error:</strong> Current PHP version does not meet minimum requirements for %s.', 'theme' ), 940 $theme->display( 'Name' ) 941 ) 942 ); 943 } elseif ( ! $compatible_wp ) { 944 return new WP_Error( 945 'theme_wp_incompatible', 946 sprintf( 947 /* translators: %s: Theme name. */ 948 _x( '<strong>Error:</strong> Current WordPress version does not meet minimum requirements for %s.', 'theme' ), 949 $theme->display( 'Name' ) 950 ) 951 ); 952 } 953 954 return true; 955 } 956 957 /** 958 * Retrieves all theme modifications. 959 * 960 * @since 3.1.0 961 * @since 5.9.0 The return value is always an array. 962 * 963 * @return array Theme modifications. 964 */ 965 function get_theme_mods() { 966 $theme_slug = get_option( 'stylesheet' ); 967 $mods = get_option( "theme_mods_$theme_slug" ); 968 969 if ( false === $mods ) { 970 $theme_name = get_option( 'current_theme' ); 971 if ( false === $theme_name ) { 972 $theme_name = wp_get_theme()->get( 'Name' ); 973 } 974 975 $mods = get_option( "mods_$theme_name" ); // Deprecated location. 976 if ( is_admin() && false !== $mods ) { 977 update_option( "theme_mods_$theme_slug", $mods ); 978 delete_option( "mods_$theme_name" ); 979 } 980 } 981 982 if ( ! is_array( $mods ) ) { 983 $mods = array(); 984 } 985 986 return $mods; 987 } 988 989 /** 990 * Retrieves theme modification value for the active theme. 991 * 992 * If the modification name does not exist and `$default` is a string, then the 993 * default will be passed through the {@link https://www.php.net/sprintf sprintf()} 994 * PHP function with the template directory URI as the first value and the 995 * stylesheet directory URI as the second value. 996 * 997 * @since 2.1.0 998 * 999 * @param string $name Theme modification name. 1000 * @param mixed $default Optional. Theme modification default value. Default false. 1001 * @return mixed Theme modification value. 1002 */ 1003 function get_theme_mod( $name, $default = false ) { 1004 $mods = get_theme_mods(); 1005 1006 if ( isset( $mods[ $name ] ) ) { 1007 /** 1008 * Filters the theme modification, or 'theme_mod', value. 1009 * 1010 * The dynamic portion of the hook name, `$name`, refers to the key name 1011 * of the modification array. For example, 'header_textcolor', 'header_image', 1012 * and so on depending on the theme options. 1013 * 1014 * @since 2.2.0 1015 * 1016 * @param mixed $current_mod The value of the active theme modification. 1017 */ 1018 return apply_filters( "theme_mod_{$name}", $mods[ $name ] ); 1019 } 1020 1021 if ( is_string( $default ) ) { 1022 // Only run the replacement if an sprintf() string format pattern was found. 1023 if ( preg_match( '#(?<!%)%(?:\d+\$?)?s#', $default ) ) { 1024 // Remove a single trailing percent sign. 1025 $default = preg_replace( '#(?<!%)%$#', '', $default ); 1026 $default = sprintf( $default, get_template_directory_uri(), get_stylesheet_directory_uri() ); 1027 } 1028 } 1029 1030 /** This filter is documented in wp-includes/theme.php */ 1031 return apply_filters( "theme_mod_{$name}", $default ); 1032 } 1033 1034 /** 1035 * Updates theme modification value for the active theme. 1036 * 1037 * @since 2.1.0 1038 * @since 5.6.0 A return value was added. 1039 * 1040 * @param string $name Theme modification name. 1041 * @param mixed $value Theme modification value. 1042 * @return bool True if the value was updated, false otherwise. 1043 */ 1044 function set_theme_mod( $name, $value ) { 1045 $mods = get_theme_mods(); 1046 $old_value = isset( $mods[ $name ] ) ? $mods[ $name ] : false; 1047 1048 /** 1049 * Filters the theme modification, or 'theme_mod', value on save. 1050 * 1051 * The dynamic portion of the hook name, `$name`, refers to the key name 1052 * of the modification array. For example, 'header_textcolor', 'header_image', 1053 * and so on depending on the theme options. 1054 * 1055 * @since 3.9.0 1056 * 1057 * @param mixed $value The new value of the theme modification. 1058 * @param mixed $old_value The current value of the theme modification. 1059 */ 1060 $mods[ $name ] = apply_filters( "pre_set_theme_mod_{$name}", $value, $old_value ); 1061 1062 $theme = get_option( 'stylesheet' ); 1063 1064 return update_option( "theme_mods_$theme", $mods ); 1065 } 1066 1067 /** 1068 * Removes theme modification name from active theme list. 1069 * 1070 * If removing the name also removes all elements, then the entire option 1071 * will be removed. 1072 * 1073 * @since 2.1.0 1074 * 1075 * @param string $name Theme modification name. 1076 */ 1077 function remove_theme_mod( $name ) { 1078 $mods = get_theme_mods(); 1079 1080 if ( ! isset( $mods[ $name ] ) ) { 1081 return; 1082 } 1083 1084 unset( $mods[ $name ] ); 1085 1086 if ( empty( $mods ) ) { 1087 remove_theme_mods(); 1088 return; 1089 } 1090 1091 $theme = get_option( 'stylesheet' ); 1092 1093 update_option( "theme_mods_$theme", $mods ); 1094 } 1095 1096 /** 1097 * Removes theme modifications option for the active theme. 1098 * 1099 * @since 2.1.0 1100 */ 1101 function remove_theme_mods() { 1102 delete_option( 'theme_mods_' . get_option( 'stylesheet' ) ); 1103 1104 // Old style. 1105 $theme_name = get_option( 'current_theme' ); 1106 if ( false === $theme_name ) { 1107 $theme_name = wp_get_theme()->get( 'Name' ); 1108 } 1109 1110 delete_option( 'mods_' . $theme_name ); 1111 } 1112 1113 /** 1114 * Retrieves the custom header text color in 3- or 6-digit hexadecimal form. 1115 * 1116 * @since 2.1.0 1117 * 1118 * @return string Header text color in 3- or 6-digit hexadecimal form (minus the hash symbol). 1119 */ 1120 function get_header_textcolor() { 1121 return get_theme_mod( 'header_textcolor', get_theme_support( 'custom-header', 'default-text-color' ) ); 1122 } 1123 1124 /** 1125 * Displays the custom header text color in 3- or 6-digit hexadecimal form (minus the hash symbol). 1126 * 1127 * @since 2.1.0 1128 */ 1129 function header_textcolor() { 1130 echo get_header_textcolor(); 1131 } 1132 1133 /** 1134 * Whether to display the header text. 1135 * 1136 * @since 3.4.0 1137 * 1138 * @return bool 1139 */ 1140 function display_header_text() { 1141 if ( ! current_theme_supports( 'custom-header', 'header-text' ) ) { 1142 return false; 1143 } 1144 1145 $text_color = get_theme_mod( 'header_textcolor', get_theme_support( 'custom-header', 'default-text-color' ) ); 1146 return 'blank' !== $text_color; 1147 } 1148 1149 /** 1150 * Checks whether a header image is set or not. 1151 * 1152 * @since 4.2.0 1153 * 1154 * @see get_header_image() 1155 * 1156 * @return bool Whether a header image is set or not. 1157 */ 1158 function has_header_image() { 1159 return (bool) get_header_image(); 1160 } 1161 1162 /** 1163 * Retrieves header image for custom header. 1164 * 1165 * @since 2.1.0 1166 * 1167 * @return string|false 1168 */ 1169 function get_header_image() { 1170 $url = get_theme_mod( 'header_image', get_theme_support( 'custom-header', 'default-image' ) ); 1171 1172 if ( 'remove-header' === $url ) { 1173 return false; 1174 } 1175 1176 if ( is_random_header_image() ) { 1177 $url = get_random_header_image(); 1178 } 1179 1180 return esc_url_raw( set_url_scheme( $url ) ); 1181 } 1182 1183 /** 1184 * Creates image tag markup for a custom header image. 1185 * 1186 * @since 4.4.0 1187 * 1188 * @param array $attr Optional. Additional attributes for the image tag. Can be used 1189 * to override the default attributes. Default empty. 1190 * @return string HTML image element markup or empty string on failure. 1191 */ 1192 function get_header_image_tag( $attr = array() ) { 1193 $header = get_custom_header(); 1194 $header->url = get_header_image(); 1195 1196 if ( ! $header->url ) { 1197 return ''; 1198 } 1199 1200 $width = absint( $header->width ); 1201 $height = absint( $header->height ); 1202 $alt = ''; 1203 1204 // Use alternative text assigned to the image, if available. Otherwise, leave it empty. 1205 if ( ! empty( $header->attachment_id ) ) { 1206 $image_alt = get_post_meta( $header->attachment_id, '_wp_attachment_image_alt', true ); 1207 1208 if ( is_string( $image_alt ) ) { 1209 $alt = $image_alt; 1210 } 1211 } 1212 1213 $attr = wp_parse_args( 1214 $attr, 1215 array( 1216 'src' => $header->url, 1217 'width' => $width, 1218 'height' => $height, 1219 'alt' => $alt, 1220 ) 1221 ); 1222 1223 // Generate 'srcset' and 'sizes' if not already present. 1224 if ( empty( $attr['srcset'] ) && ! empty( $header->attachment_id ) ) { 1225 $image_meta = get_post_meta( $header->attachment_id, '_wp_attachment_metadata', true ); 1226 $size_array = array( $width, $height ); 1227 1228 if ( is_array( $image_meta ) ) { 1229 $srcset = wp_calculate_image_srcset( $size_array, $header->url, $image_meta, $header->attachment_id ); 1230 1231 if ( ! empty( $attr['sizes'] ) ) { 1232 $sizes = $attr['sizes']; 1233 } else { 1234 $sizes = wp_calculate_image_sizes( $size_array, $header->url, $image_meta, $header->attachment_id ); 1235 } 1236 1237 if ( $srcset && $sizes ) { 1238 $attr['srcset'] = $srcset; 1239 $attr['sizes'] = $sizes; 1240 } 1241 } 1242 } 1243 1244 /** 1245 * Filters the list of header image attributes. 1246 * 1247 * @since 5.9.0 1248 * 1249 * @param array $attr Array of the attributes for the image tag. 1250 * @param object $header The custom header object returned by 'get_custom_header()'. 1251 */ 1252 $attr = apply_filters( 'get_header_image_tag_attributes', $attr, $header ); 1253 1254 $attr = array_map( 'esc_attr', $attr ); 1255 $html = '<img'; 1256 1257 foreach ( $attr as $name => $value ) { 1258 $html .= ' ' . $name . '="' . $value . '"'; 1259 } 1260 1261 $html .= ' />'; 1262 1263 /** 1264 * Filters the markup of header images. 1265 * 1266 * @since 4.4.0 1267 * 1268 * @param string $html The HTML image tag markup being filtered. 1269 * @param object $header The custom header object returned by 'get_custom_header()'. 1270 * @param array $attr Array of the attributes for the image tag. 1271 */ 1272 return apply_filters( 'get_header_image_tag', $html, $header, $attr ); 1273 } 1274 1275 /** 1276 * Displays the image markup for a custom header image. 1277 * 1278 * @since 4.4.0 1279 * 1280 * @param array $attr Optional. Attributes for the image markup. Default empty. 1281 */ 1282 function the_header_image_tag( $attr = array() ) { 1283 echo get_header_image_tag( $attr ); 1284 } 1285 1286 /** 1287 * Gets random header image data from registered images in theme. 1288 * 1289 * @since 3.4.0 1290 * 1291 * @access private 1292 * 1293 * @global array $_wp_default_headers 1294 * 1295 * @return object 1296 */ 1297 function _get_random_header_data() { 1298 global $_wp_default_headers; 1299 static $_wp_random_header = null; 1300 1301 if ( empty( $_wp_random_header ) ) { 1302 $header_image_mod = get_theme_mod( 'header_image', '' ); 1303 $headers = array(); 1304 1305 if ( 'random-uploaded-image' === $header_image_mod ) { 1306 $headers = get_uploaded_header_images(); 1307 } elseif ( ! empty( $_wp_default_headers ) ) { 1308 if ( 'random-default-image' === $header_image_mod ) { 1309 $headers = $_wp_default_headers; 1310 } else { 1311 if ( current_theme_supports( 'custom-header', 'random-default' ) ) { 1312 $headers = $_wp_default_headers; 1313 } 1314 } 1315 } 1316 1317 if ( empty( $headers ) ) { 1318 return new stdClass; 1319 } 1320 1321 $_wp_random_header = (object) $headers[ array_rand( $headers ) ]; 1322 1323 $_wp_random_header->url = sprintf( 1324 $_wp_random_header->url, 1325 get_template_directory_uri(), 1326 get_stylesheet_directory_uri() 1327 ); 1328 1329 $_wp_random_header->thumbnail_url = sprintf( 1330 $_wp_random_header->thumbnail_url, 1331 get_template_directory_uri(), 1332 get_stylesheet_directory_uri() 1333 ); 1334 } 1335 1336 return $_wp_random_header; 1337 } 1338 1339 /** 1340 * Gets random header image URL from registered images in theme. 1341 * 1342 * @since 3.2.0 1343 * 1344 * @return string Path to header image. 1345 */ 1346 function get_random_header_image() { 1347 $random_image = _get_random_header_data(); 1348 1349 if ( empty( $random_image->url ) ) { 1350 return ''; 1351 } 1352 1353 return $random_image->url; 1354 } 1355 1356 /** 1357 * Checks if random header image is in use. 1358 * 1359 * Always true if user expressly chooses the option in Appearance > Header. 1360 * Also true if theme has multiple header images registered, no specific header image 1361 * is chosen, and theme turns on random headers with add_theme_support(). 1362 * 1363 * @since 3.2.0 1364 * 1365 * @param string $type The random pool to use. Possible values include 'any', 1366 * 'default', 'uploaded'. Default 'any'. 1367 * @return bool 1368 */ 1369 function is_random_header_image( $type = 'any' ) { 1370 $header_image_mod = get_theme_mod( 'header_image', get_theme_support( 'custom-header', 'default-image' ) ); 1371 1372 if ( 'any' === $type ) { 1373 if ( 'random-default-image' === $header_image_mod 1374 || 'random-uploaded-image' === $header_image_mod 1375 || ( '' !== get_random_header_image() && empty( $header_image_mod ) ) 1376 ) { 1377 return true; 1378 } 1379 } else { 1380 if ( "random-$type-image" === $header_image_mod ) { 1381 return true; 1382 } elseif ( 'default' === $type && empty( $header_image_mod ) && '' !== get_random_header_image() ) { 1383 return true; 1384 } 1385 } 1386 1387 return false; 1388 } 1389 1390 /** 1391 * Displays header image URL. 1392 * 1393 * @since 2.1.0 1394 */ 1395 function header_image() { 1396 $image = get_header_image(); 1397 1398 if ( $image ) { 1399 echo esc_url( $image ); 1400 } 1401 } 1402 1403 /** 1404 * Gets the header images uploaded for the active theme. 1405 * 1406 * @since 3.2.0 1407 * 1408 * @return array 1409 */ 1410 function get_uploaded_header_images() { 1411 $header_images = array(); 1412 1413 // @todo Caching. 1414 $headers = get_posts( 1415 array( 1416 'post_type' => 'attachment', 1417 'meta_key' => '_wp_attachment_is_custom_header', 1418 'meta_value' => get_option( 'stylesheet' ), 1419 'orderby' => 'none', 1420 'nopaging' => true, 1421 ) 1422 ); 1423 1424 if ( empty( $headers ) ) { 1425 return array(); 1426 } 1427 1428 foreach ( (array) $headers as $header ) { 1429 $url = esc_url_raw( wp_get_attachment_url( $header->ID ) ); 1430 $header_data = wp_get_attachment_metadata( $header->ID ); 1431 $header_index = $header->ID; 1432 1433 $header_images[ $header_index ] = array(); 1434 $header_images[ $header_index ]['attachment_id'] = $header->ID; 1435 $header_images[ $header_index ]['url'] = $url; 1436 $header_images[ $header_index ]['thumbnail_url'] = $url; 1437 $header_images[ $header_index ]['alt_text'] = get_post_meta( $header->ID, '_wp_attachment_image_alt', true ); 1438 1439 if ( isset( $header_data['attachment_parent'] ) ) { 1440 $header_images[ $header_index ]['attachment_parent'] = $header_data['attachment_parent']; 1441 } else { 1442 $header_images[ $header_index ]['attachment_parent'] = ''; 1443 } 1444 1445 if ( isset( $header_data['width'] ) ) { 1446 $header_images[ $header_index ]['width'] = $header_data['width']; 1447 } 1448 if ( isset( $header_data['height'] ) ) { 1449 $header_images[ $header_index ]['height'] = $header_data['height']; 1450 } 1451 } 1452 1453 return $header_images; 1454 } 1455 1456 /** 1457 * Gets the header image data. 1458 * 1459 * @since 3.4.0 1460 * 1461 * @global array $_wp_default_headers 1462 * 1463 * @return object 1464 */ 1465 function get_custom_header() { 1466 global $_wp_default_headers; 1467 1468 if ( is_random_header_image() ) { 1469 $data = _get_random_header_data(); 1470 } else { 1471 $data = get_theme_mod( 'header_image_data' ); 1472 if ( ! $data && current_theme_supports( 'custom-header', 'default-image' ) ) { 1473 $directory_args = array( get_template_directory_uri(), get_stylesheet_directory_uri() ); 1474 $data = array(); 1475 $data['url'] = vsprintf( get_theme_support( 'custom-header', 'default-image' ), $directory_args ); 1476 $data['thumbnail_url'] = $data['url']; 1477 if ( ! empty( $_wp_default_headers ) ) { 1478 foreach ( (array) $_wp_default_headers as $default_header ) { 1479 $url = vsprintf( $default_header['url'], $directory_args ); 1480 if ( $data['url'] == $url ) { 1481 $data = $default_header; 1482 $data['url'] = $url; 1483 $data['thumbnail_url'] = vsprintf( $data['thumbnail_url'], $directory_args ); 1484 break; 1485 } 1486 } 1487 } 1488 } 1489 } 1490 1491 $default = array( 1492 'url' => '', 1493 'thumbnail_url' => '', 1494 'width' => get_theme_support( 'custom-header', 'width' ), 1495 'height' => get_theme_support( 'custom-header', 'height' ), 1496 'video' => get_theme_support( 'custom-header', 'video' ), 1497 ); 1498 return (object) wp_parse_args( $data, $default ); 1499 } 1500 1501 /** 1502 * Registers a selection of default headers to be displayed by the custom header admin UI. 1503 * 1504 * @since 3.0.0 1505 * 1506 * @global array $_wp_default_headers 1507 * 1508 * @param array $headers Array of headers keyed by a string ID. The IDs point to arrays 1509 * containing 'url', 'thumbnail_url', and 'description' keys. 1510 */ 1511 function register_default_headers( $headers ) { 1512 global $_wp_default_headers; 1513 1514 $_wp_default_headers = array_merge( (array) $_wp_default_headers, (array) $headers ); 1515 } 1516 1517 /** 1518 * Unregisters default headers. 1519 * 1520 * This function must be called after register_default_headers() has already added the 1521 * header you want to remove. 1522 * 1523 * @see register_default_headers() 1524 * @since 3.0.0 1525 * 1526 * @global array $_wp_default_headers 1527 * 1528 * @param string|array $header The header string id (key of array) to remove, or an array thereof. 1529 * @return bool|void A single header returns true on success, false on failure. 1530 * There is currently no return value for multiple headers. 1531 */ 1532 function unregister_default_headers( $header ) { 1533 global $_wp_default_headers; 1534 1535 if ( is_array( $header ) ) { 1536 array_map( 'unregister_default_headers', $header ); 1537 } elseif ( isset( $_wp_default_headers[ $header ] ) ) { 1538 unset( $_wp_default_headers[ $header ] ); 1539 return true; 1540 } else { 1541 return false; 1542 } 1543 } 1544 1545 /** 1546 * Checks whether a header video is set or not. 1547 * 1548 * @since 4.7.0 1549 * 1550 * @see get_header_video_url() 1551 * 1552 * @return bool Whether a header video is set or not. 1553 */ 1554 function has_header_video() { 1555 return (bool) get_header_video_url(); 1556 } 1557 1558 /** 1559 * Retrieves header video URL for custom header. 1560 * 1561 * Uses a local video if present, or falls back to an external video. 1562 * 1563 * @since 4.7.0 1564 * 1565 * @return string|false Header video URL or false if there is no video. 1566 */ 1567 function get_header_video_url() { 1568 $id = absint( get_theme_mod( 'header_video' ) ); 1569 1570 if ( $id ) { 1571 // Get the file URL from the attachment ID. 1572 $url = wp_get_attachment_url( $id ); 1573 } else { 1574 $url = get_theme_mod( 'external_header_video' ); 1575 } 1576 1577 /** 1578 * Filters the header video URL. 1579 * 1580 * @since 4.7.3 1581 * 1582 * @param string $url Header video URL, if available. 1583 */ 1584 $url = apply_filters( 'get_header_video_url', $url ); 1585 1586 if ( ! $id && ! $url ) { 1587 return false; 1588 } 1589 1590 return esc_url_raw( set_url_scheme( $url ) ); 1591 } 1592 1593 /** 1594 * Displays header video URL. 1595 * 1596 * @since 4.7.0 1597 */ 1598 function the_header_video_url() { 1599 $video = get_header_video_url(); 1600 1601 if ( $video ) { 1602 echo esc_url( $video ); 1603 } 1604 } 1605 1606 /** 1607 * Retrieves header video settings. 1608 * 1609 * @since 4.7.0 1610 * 1611 * @return array 1612 */ 1613 function get_header_video_settings() { 1614 $header = get_custom_header(); 1615 $video_url = get_header_video_url(); 1616 $video_type = wp_check_filetype( $video_url, wp_get_mime_types() ); 1617 1618 $settings = array( 1619 'mimeType' => '', 1620 'posterUrl' => get_header_image(), 1621 'videoUrl' => $video_url, 1622 'width' => absint( $header->width ), 1623 'height' => absint( $header->height ), 1624 'minWidth' => 900, 1625 'minHeight' => 500, 1626 'l10n' => array( 1627 'pause' => __( 'Pause' ), 1628 'play' => __( 'Play' ), 1629 'pauseSpeak' => __( 'Video is paused.' ), 1630 'playSpeak' => __( 'Video is playing.' ), 1631 ), 1632 ); 1633 1634 if ( preg_match( '#^https?://(?:www\.)?(?:youtube\.com/watch|youtu\.be/)#', $video_url ) ) { 1635 $settings['mimeType'] = 'video/x-youtube'; 1636 } elseif ( ! empty( $video_type['type'] ) ) { 1637 $settings['mimeType'] = $video_type['type']; 1638 } 1639 1640 /** 1641 * Filters header video settings. 1642 * 1643 * @since 4.7.0 1644 * 1645 * @param array $settings An array of header video settings. 1646 */ 1647 return apply_filters( 'header_video_settings', $settings ); 1648 } 1649 1650 /** 1651 * Checks whether a custom header is set or not. 1652 * 1653 * @since 4.7.0 1654 * 1655 * @return bool True if a custom header is set. False if not. 1656 */ 1657 function has_custom_header() { 1658 if ( has_header_image() || ( has_header_video() && is_header_video_active() ) ) { 1659 return true; 1660 } 1661 1662 return false; 1663 } 1664 1665 /** 1666 * Checks whether the custom header video is eligible to show on the current page. 1667 * 1668 * @since 4.7.0 1669 * 1670 * @return bool True if the custom header video should be shown. False if not. 1671 */ 1672 function is_header_video_active() { 1673 if ( ! get_theme_support( 'custom-header', 'video' ) ) { 1674 return false; 1675 } 1676 1677 $video_active_cb = get_theme_support( 'custom-header', 'video-active-callback' ); 1678 1679 if ( empty( $video_active_cb ) || ! is_callable( $video_active_cb ) ) { 1680 $show_video = true; 1681 } else { 1682 $show_video = call_user_func( $video_active_cb ); 1683 } 1684 1685 /** 1686 * Filters whether the custom header video is eligible to show on the current page. 1687 * 1688 * @since 4.7.0 1689 * 1690 * @param bool $show_video Whether the custom header video should be shown. Returns the value 1691 * of the theme setting for the `custom-header`'s `video-active-callback`. 1692 * If no callback is set, the default value is that of `is_front_page()`. 1693 */ 1694 return apply_filters( 'is_header_video_active', $show_video ); 1695 } 1696 1697 /** 1698 * Retrieves the markup for a custom header. 1699 * 1700 * The container div will always be returned in the Customizer preview. 1701 * 1702 * @since 4.7.0 1703 * 1704 * @return string The markup for a custom header on success. 1705 */ 1706 function get_custom_header_markup() { 1707 if ( ! has_custom_header() && ! is_customize_preview() ) { 1708 return ''; 1709 } 1710 1711 return sprintf( 1712 '<div id="wp-custom-header" class="wp-custom-header">%s</div>', 1713 get_header_image_tag() 1714 ); 1715 } 1716 1717 /** 1718 * Prints the markup for a custom header. 1719 * 1720 * A container div will always be printed in the Customizer preview. 1721 * 1722 * @since 4.7.0 1723 */ 1724 function the_custom_header_markup() { 1725 $custom_header = get_custom_header_markup(); 1726 if ( empty( $custom_header ) ) { 1727 return; 1728 } 1729 1730 echo $custom_header; 1731 1732 if ( is_header_video_active() && ( has_header_video() || is_customize_preview() ) ) { 1733 wp_enqueue_script( 'wp-custom-header' ); 1734 wp_localize_script( 'wp-custom-header', '_wpCustomHeaderSettings', get_header_video_settings() ); 1735 } 1736 } 1737 1738 /** 1739 * Retrieves background image for custom background. 1740 * 1741 * @since 3.0.0 1742 * 1743 * @return string 1744 */ 1745 function get_background_image() { 1746 return get_theme_mod( 'background_image', get_theme_support( 'custom-background', 'default-image' ) ); 1747 } 1748 1749 /** 1750 * Displays background image path. 1751 * 1752 * @since 3.0.0 1753 */ 1754 function background_image() { 1755 echo get_background_image(); 1756 } 1757 1758 /** 1759 * Retrieves value for custom background color. 1760 * 1761 * @since 3.0.0 1762 * 1763 * @return string 1764 */ 1765 function get_background_color() { 1766 return get_theme_mod( 'background_color', get_theme_support( 'custom-background', 'default-color' ) ); 1767 } 1768 1769 /** 1770 * Displays background color value. 1771 * 1772 * @since 3.0.0 1773 */ 1774 function background_color() { 1775 echo get_background_color(); 1776 } 1777 1778 /** 1779 * Default custom background callback. 1780 * 1781 * @since 3.0.0 1782 */ 1783 function _custom_background_cb() { 1784 // $background is the saved custom image, or the default image. 1785 $background = set_url_scheme( get_background_image() ); 1786 1787 // $color is the saved custom color. 1788 // A default has to be specified in style.css. It will not be printed here. 1789 $color = get_background_color(); 1790 1791 if ( get_theme_support( 'custom-background', 'default-color' ) === $color ) { 1792 $color = false; 1793 } 1794 1795 $type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"'; 1796 1797 if ( ! $background && ! $color ) { 1798 if ( is_customize_preview() ) { 1799 printf( '<style%s id="custom-background-css"></style>', $type_attr ); 1800 } 1801 return; 1802 } 1803 1804 $style = $color ? "background-color: #$color;" : ''; 1805 1806 if ( $background ) { 1807 $image = ' background-image: url("' . esc_url_raw( $background ) . '");'; 1808 1809 // Background Position. 1810 $position_x = get_theme_mod( 'background_position_x', get_theme_support( 'custom-background', 'default-position-x' ) ); 1811 $position_y = get_theme_mod( 'background_position_y', get_theme_support( 'custom-background', 'default-position-y' ) ); 1812 1813 if ( ! in_array( $position_x, array( 'left', 'center', 'right' ), true ) ) { 1814 $position_x = 'left'; 1815 } 1816 1817 if ( ! in_array( $position_y, array( 'top', 'center', 'bottom' ), true ) ) { 1818 $position_y = 'top'; 1819 } 1820 1821 $position = " background-position: $position_x $position_y;"; 1822 1823 // Background Size. 1824 $size = get_theme_mod( 'background_size', get_theme_support( 'custom-background', 'default-size' ) ); 1825 1826 if ( ! in_array( $size, array( 'auto', 'contain', 'cover' ), true ) ) { 1827 $size = 'auto'; 1828 } 1829 1830 $size = " background-size: $size;"; 1831 1832 // Background Repeat. 1833 $repeat = get_theme_mod( 'background_repeat', get_theme_support( 'custom-background', 'default-repeat' ) ); 1834 1835 if ( ! in_array( $repeat, array( 'repeat-x', 'repeat-y', 'repeat', 'no-repeat' ), true ) ) { 1836 $repeat = 'repeat'; 1837 } 1838 1839 $repeat = " background-repeat: $repeat;"; 1840 1841 // Background Scroll. 1842 $attachment = get_theme_mod( 'background_attachment', get_theme_support( 'custom-background', 'default-attachment' ) ); 1843 1844 if ( 'fixed' !== $attachment ) { 1845 $attachment = 'scroll'; 1846 } 1847 1848 $attachment = " background-attachment: $attachment;"; 1849 1850 $style .= $image . $position . $size . $repeat . $attachment; 1851 } 1852 ?> 1853 <style<?php echo $type_attr; ?> id="custom-background-css"> 1854 body.custom-background { <?php echo trim( $style ); ?> } 1855 </style> 1856 <?php 1857 } 1858 1859 /** 1860 * Renders the Custom CSS style element. 1861 * 1862 * @since 4.7.0 1863 */ 1864 function wp_custom_css_cb() { 1865 $styles = wp_get_custom_css(); 1866 if ( $styles || is_customize_preview() ) : 1867 $type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"'; 1868 ?> 1869 <style<?php echo $type_attr; ?> id="wp-custom-css"> 1870 <?php 1871 // Note that esc_html() cannot be used because `div > span` is not interpreted properly. 1872 echo strip_tags( $styles ); 1873 ?> 1874 </style> 1875 <?php 1876 endif; 1877 } 1878 1879 /** 1880 * Fetches the `custom_css` post for a given theme. 1881 * 1882 * @since 4.7.0 1883 * 1884 * @param string $stylesheet Optional. A theme object stylesheet name. Defaults to the active theme. 1885 * @return WP_Post|null The custom_css post or null if none exists. 1886 */ 1887 function wp_get_custom_css_post( $stylesheet = '' ) { 1888 if ( empty( $stylesheet ) ) { 1889 $stylesheet = get_stylesheet(); 1890 } 1891 1892 $custom_css_query_vars = array( 1893 'post_type' => 'custom_css', 1894 'post_status' => get_post_stati(), 1895 'name' => sanitize_title( $stylesheet ), 1896 'posts_per_page' => 1, 1897 'no_found_rows' => true, 1898 'cache_results' => true, 1899 'update_post_meta_cache' => false, 1900 'update_post_term_cache' => false, 1901 'lazy_load_term_meta' => false, 1902 ); 1903 1904 $post = null; 1905 if ( get_stylesheet() === $stylesheet ) { 1906 $post_id = get_theme_mod( 'custom_css_post_id' ); 1907 1908 if ( $post_id > 0 && get_post( $post_id ) ) { 1909 $post = get_post( $post_id ); 1910 } 1911 1912 // `-1` indicates no post exists; no query necessary. 1913 if ( ! $post && -1 !== $post_id ) { 1914 $query = new WP_Query( $custom_css_query_vars ); 1915 $post = $query->post; 1916 /* 1917 * Cache the lookup. See wp_update_custom_css_post(). 1918 * @todo This should get cleared if a custom_css post is added/removed. 1919 */ 1920 set_theme_mod( 'custom_css_post_id', $post ? $post->ID : -1 ); 1921 } 1922 } else { 1923 $query = new WP_Query( $custom_css_query_vars ); 1924 $post = $query->post; 1925 } 1926 1927 return $post; 1928 } 1929 1930 /** 1931 * Fetches the saved Custom CSS content for rendering. 1932 * 1933 * @since 4.7.0 1934 * 1935 * @param string $stylesheet Optional. A theme object stylesheet name. Defaults to the active theme. 1936 * @return string The Custom CSS Post content. 1937 */ 1938 function wp_get_custom_css( $stylesheet = '' ) { 1939 $css = ''; 1940 1941 if ( empty( $stylesheet ) ) { 1942 $stylesheet = get_stylesheet(); 1943 } 1944 1945 $post = wp_get_custom_css_post( $stylesheet ); 1946 if ( $post ) { 1947 $css = $post->post_content; 1948 } 1949 1950 /** 1951 * Filters the custom CSS output into the head element. 1952 * 1953 * @since 4.7.0 1954 * 1955 * @param string $css CSS pulled in from the Custom CSS post type. 1956 * @param string $stylesheet The theme stylesheet name. 1957 */ 1958 $css = apply_filters( 'wp_get_custom_css', $css, $stylesheet ); 1959 1960 return $css; 1961 } 1962 1963 /** 1964 * Updates the `custom_css` post for a given theme. 1965 * 1966 * Inserts a `custom_css` post when one doesn't yet exist. 1967 * 1968 * @since 4.7.0 1969 * 1970 * @param string $css CSS, stored in `post_content`. 1971 * @param array $args { 1972 * Args. 1973 * 1974 * @type string $preprocessed Optional. Pre-processed CSS, stored in `post_content_filtered`. 1975 * Normally empty string. 1976 * @type string $stylesheet Optional. Stylesheet (child theme) to update. 1977 * Defaults to active theme/stylesheet. 1978 * } 1979 * @return WP_Post|WP_Error Post on success, error on failure. 1980 */ 1981 function wp_update_custom_css_post( $css, $args = array() ) { 1982 $args = wp_parse_args( 1983 $args, 1984 array( 1985 'preprocessed' => '', 1986 'stylesheet' => get_stylesheet(), 1987 ) 1988 ); 1989 1990 $data = array( 1991 'css' => $css, 1992 'preprocessed' => $args['preprocessed'], 1993 ); 1994 1995 /** 1996 * Filters the `css` (`post_content`) and `preprocessed` (`post_content_filtered`) args 1997 * for a `custom_css` post being updated. 1998 * 1999 * This filter can be used by plugin that offer CSS pre-processors, to store the original 2000 * pre-processed CSS in `post_content_filtered` and then store processed CSS in `post_content`. 2001 * When used in this way, the `post_content_filtered` should be supplied as the setting value 2002 * instead of `post_content` via a the `customize_value_custom_css` filter, for example: 2003 * 2004 * <code> 2005 * add_filter( 'customize_value_custom_css', function( $value, $setting ) { 2006 * $post = wp_get_custom_css_post( $setting->stylesheet ); 2007 * if ( $post && ! empty( $post->post_content_filtered ) ) { 2008 * $css = $post->post_content_filtered; 2009 * } 2010 * return $css; 2011 * }, 10, 2 ); 2012 * </code> 2013 * 2014 * @since 4.7.0 2015 * @param array $data { 2016 * Custom CSS data. 2017 * 2018 * @type string $css CSS stored in `post_content`. 2019 * @type string $preprocessed Pre-processed CSS stored in `post_content_filtered`. 2020 * Normally empty string. 2021 * } 2022 * @param array $args { 2023 * The args passed into `wp_update_custom_css_post()` merged with defaults. 2024 * 2025 * @type string $css The original CSS passed in to be updated. 2026 * @type string $preprocessed The original preprocessed CSS passed in to be updated. 2027 * @type string $stylesheet The stylesheet (theme) being updated. 2028 * } 2029 */ 2030 $data = apply_filters( 'update_custom_css_data', $data, array_merge( $args, compact( 'css' ) ) ); 2031 2032 $post_data = array( 2033 'post_title' => $args['stylesheet'], 2034 'post_name' => sanitize_title( $args['stylesheet'] ), 2035 'post_type' => 'custom_css', 2036 'post_status' => 'publish', 2037 'post_content' => $data['css'], 2038 'post_content_filtered' => $data['preprocessed'], 2039 ); 2040 2041 // Update post if it already exists, otherwise create a new one. 2042 $post = wp_get_custom_css_post( $args['stylesheet'] ); 2043 if ( $post ) { 2044 $post_data['ID'] = $post->ID; 2045 $r = wp_update_post( wp_slash( $post_data ), true ); 2046 } else { 2047 $r = wp_insert_post( wp_slash( $post_data ), true ); 2048 2049 if ( ! is_wp_error( $r ) ) { 2050 if ( get_stylesheet() === $args['stylesheet'] ) { 2051 set_theme_mod( 'custom_css_post_id', $r ); 2052 } 2053 2054 // Trigger creation of a revision. This should be removed once #30854 is resolved. 2055 if ( 0 === count( wp_get_post_revisions( $r ) ) ) { 2056 wp_save_post_revision( $r ); 2057 } 2058 } 2059 } 2060 2061 if ( is_wp_error( $r ) ) { 2062 return $r; 2063 } 2064 return get_post( $r ); 2065 } 2066 2067 /** 2068 * Adds callback for custom TinyMCE editor stylesheets. 2069 * 2070 * The parameter $stylesheet is the name of the stylesheet, relative to 2071 * the theme root. It also accepts an array of stylesheets. 2072 * It is optional and defaults to 'editor-style.css'. 2073 * 2074 * This function automatically adds another stylesheet with -rtl prefix, e.g. editor-style-rtl.css. 2075 * If that file doesn't exist, it is removed before adding the stylesheet(s) to TinyMCE. 2076 * If an array of stylesheets is passed to add_editor_style(), 2077 * RTL is only added for the first stylesheet. 2078 * 2079 * Since version 3.4 the TinyMCE body has .rtl CSS class. 2080 * It is a better option to use that class and add any RTL styles to the main stylesheet. 2081 * 2082 * @since 3.0.0 2083 * 2084 * @global array $editor_styles 2085 * 2086 * @param array|string $stylesheet Optional. Stylesheet name or array thereof, relative to theme root. 2087 * Defaults to 'editor-style.css' 2088 */ 2089 function add_editor_style( $stylesheet = 'editor-style.css' ) { 2090 global $editor_styles; 2091 2092 add_theme_support( 'editor-style' ); 2093 2094 $editor_styles = (array) $editor_styles; 2095 $stylesheet = (array) $stylesheet; 2096 2097 if ( is_rtl() ) { 2098 $rtl_stylesheet = str_replace( '.css', '-rtl.css', $stylesheet[0] ); 2099 $stylesheet[] = $rtl_stylesheet; 2100 } 2101 2102 $editor_styles = array_merge( $editor_styles, $stylesheet ); 2103 } 2104 2105 /** 2106 * Removes all visual editor stylesheets. 2107 * 2108 * @since 3.1.0 2109 * 2110 * @global array $editor_styles 2111 * 2112 * @return bool True on success, false if there were no stylesheets to remove. 2113 */ 2114 function remove_editor_styles() { 2115 if ( ! current_theme_supports( 'editor-style' ) ) { 2116 return false; 2117 } 2118 _remove_theme_support( 'editor-style' ); 2119 if ( is_admin() ) { 2120 $GLOBALS['editor_styles'] = array(); 2121 } 2122 return true; 2123 } 2124 2125 /** 2126 * Retrieves any registered editor stylesheet URLs. 2127 * 2128 * @since 4.0.0 2129 * 2130 * @global array $editor_styles Registered editor stylesheets 2131 * 2132 * @return string[] If registered, a list of editor stylesheet URLs. 2133 */ 2134 function get_editor_stylesheets() { 2135 $stylesheets = array(); 2136 // Load editor_style.css if the active theme supports it. 2137 if ( ! empty( $GLOBALS['editor_styles'] ) && is_array( $GLOBALS['editor_styles'] ) ) { 2138 $editor_styles = $GLOBALS['editor_styles']; 2139 2140 $editor_styles = array_unique( array_filter( $editor_styles ) ); 2141 $style_uri = get_stylesheet_directory_uri(); 2142 $style_dir = get_stylesheet_directory(); 2143 2144 // Support externally referenced styles (like, say, fonts). 2145 foreach ( $editor_styles as $key => $file ) { 2146 if ( preg_match( '~^(https?:)?//~', $file ) ) { 2147 $stylesheets[] = esc_url_raw( $file ); 2148 unset( $editor_styles[ $key ] ); 2149 } 2150 } 2151 2152 // Look in a parent theme first, that way child theme CSS overrides. 2153 if ( is_child_theme() ) { 2154 $template_uri = get_template_directory_uri(); 2155 $template_dir = get_template_directory(); 2156 2157 foreach ( $editor_styles as $key => $file ) { 2158 if ( $file && file_exists( "$template_dir/$file" ) ) { 2159 $stylesheets[] = "$template_uri/$file"; 2160 } 2161 } 2162 } 2163 2164 foreach ( $editor_styles as $file ) { 2165 if ( $file && file_exists( "$style_dir/$file" ) ) { 2166 $stylesheets[] = "$style_uri/$file"; 2167 } 2168 } 2169 } 2170 2171 /** 2172 * Filters the array of URLs of stylesheets applied to the editor. 2173 * 2174 * @since 4.3.0 2175 * 2176 * @param string[] $stylesheets Array of URLs of stylesheets to be applied to the editor. 2177 */ 2178 return apply_filters( 'editor_stylesheets', $stylesheets ); 2179 } 2180 2181 /** 2182 * Expands a theme's starter content configuration using core-provided data. 2183 * 2184 * @since 4.7.0 2185 * 2186 * @return array Array of starter content. 2187 */ 2188 function get_theme_starter_content() { 2189 $theme_support = get_theme_support( 'starter-content' ); 2190 if ( is_array( $theme_support ) && ! empty( $theme_support[0] ) && is_array( $theme_support[0] ) ) { 2191 $config = $theme_support[0]; 2192 } else { 2193 $config = array(); 2194 } 2195 2196 $core_content = array( 2197 'widgets' => array( 2198 'text_business_info' => array( 2199 'text', 2200 array( 2201 'title' => _x( 'Find Us', 'Theme starter content' ), 2202 'text' => implode( 2203 '', 2204 array( 2205 '<strong>' . _x( 'Address', 'Theme starter content' ) . "</strong>\n", 2206 _x( '123 Main Street', 'Theme starter content' ) . "\n", 2207 _x( 'New York, NY 10001', 'Theme starter content' ) . "\n\n", 2208 '<strong>' . _x( 'Hours', 'Theme starter content' ) . "</strong>\n", 2209 _x( 'Monday–Friday: 9:00AM–5:00PM', 'Theme starter content' ) . "\n", 2210 _x( 'Saturday & Sunday: 11:00AM–3:00PM', 'Theme starter content' ), 2211 ) 2212 ), 2213 'filter' => true, 2214 'visual' => true, 2215 ), 2216 ), 2217 'text_about' => array( 2218 'text', 2219 array( 2220 'title' => _x( 'About This Site', 'Theme starter content' ), 2221 'text' => _x( 'This may be a good place to introduce yourself and your site or include some credits.', 'Theme starter content' ), 2222 'filter' => true, 2223 'visual' => true, 2224 ), 2225 ), 2226 'archives' => array( 2227 'archives', 2228 array( 2229 'title' => _x( 'Archives', 'Theme starter content' ), 2230 ), 2231 ), 2232 'calendar' => array( 2233 'calendar', 2234 array( 2235 'title' => _x( 'Calendar', 'Theme starter content' ), 2236 ), 2237 ), 2238 'categories' => array( 2239 'categories', 2240 array( 2241 'title' => _x( 'Categories', 'Theme starter content' ), 2242 ), 2243 ), 2244 'meta' => array( 2245 'meta', 2246 array( 2247 'title' => _x( 'Meta', 'Theme starter content' ), 2248 ), 2249 ), 2250 'recent-comments' => array( 2251 'recent-comments', 2252 array( 2253 'title' => _x( 'Recent Comments', 'Theme starter content' ), 2254 ), 2255 ), 2256 'recent-posts' => array( 2257 'recent-posts', 2258 array( 2259 'title' => _x( 'Recent Posts', 'Theme starter content' ), 2260 ), 2261 ), 2262 'search' => array( 2263 'search', 2264 array( 2265 'title' => _x( 'Search', 'Theme starter content' ), 2266 ), 2267 ), 2268 ), 2269 'nav_menus' => array( 2270 'link_home' => array( 2271 'type' => 'custom', 2272 'title' => _x( 'Home', 'Theme starter content' ), 2273 'url' => home_url( '/' ), 2274 ), 2275 'page_home' => array( // Deprecated in favor of 'link_home'. 2276 'type' => 'post_type', 2277 'object' => 'page', 2278 'object_id' => '{{home}}', 2279 ), 2280 'page_about' => array( 2281 'type' => 'post_type', 2282 'object' => 'page', 2283 'object_id' => '{{about}}', 2284 ), 2285 'page_blog' => array( 2286 'type' => 'post_type', 2287 'object' => 'page', 2288 'object_id' => '{{blog}}', 2289 ), 2290 'page_news' => array( 2291 'type' => 'post_type', 2292 'object' => 'page', 2293 'object_id' => '{{news}}', 2294 ), 2295 'page_contact' => array( 2296 'type' => 'post_type', 2297 'object' => 'page', 2298 'object_id' => '{{contact}}', 2299 ), 2300 2301 'link_email' => array( 2302 'title' => _x( 'Email', 'Theme starter content' ), 2303 'url' => 'mailto:wordpress@example.com', 2304 ), 2305 'link_facebook' => array( 2306 'title' => _x( 'Facebook', 'Theme starter content' ), 2307 'url' => 'https://www.facebook.com/wordpress', 2308 ), 2309 'link_foursquare' => array( 2310 'title' => _x( 'Foursquare', 'Theme starter content' ), 2311 'url' => 'https://foursquare.com/', 2312 ), 2313 'link_github' => array( 2314 'title' => _x( 'GitHub', 'Theme starter content' ), 2315 'url' => 'https://github.com/wordpress/', 2316 ), 2317 'link_instagram' => array( 2318 'title' => _x( 'Instagram', 'Theme starter content' ), 2319 'url' => 'https://www.instagram.com/explore/tags/wordcamp/', 2320 ), 2321 'link_linkedin' => array( 2322 'title' => _x( 'LinkedIn', 'Theme starter content' ), 2323 'url' => 'https://www.linkedin.com/company/1089783', 2324 ), 2325 'link_pinterest' => array( 2326 'title' => _x( 'Pinterest', 'Theme starter content' ), 2327 'url' => 'https://www.pinterest.com/', 2328 ), 2329 'link_twitter' => array( 2330 'title' => _x( 'Twitter', 'Theme starter content' ), 2331 'url' => 'https://twitter.com/wordpress', 2332 ), 2333 'link_yelp' => array( 2334 'title' => _x( 'Yelp', 'Theme starter content' ), 2335 'url' => 'https://www.yelp.com', 2336 ), 2337 'link_youtube' => array( 2338 'title' => _x( 'YouTube', 'Theme starter content' ), 2339 'url' => 'https://www.youtube.com/channel/UCdof4Ju7amm1chz1gi1T2ZA', 2340 ), 2341 ), 2342 'posts' => array( 2343 'home' => array( 2344 'post_type' => 'page', 2345 'post_title' => _x( 'Home', 'Theme starter content' ), 2346 'post_content' => sprintf( 2347 "<!-- wp:paragraph -->\n<p>%s</p>\n<!-- /wp:paragraph -->", 2348 _x( 'Welcome to your site! This is your homepage, which is what most visitors will see when they come to your site for the first time.', 'Theme starter content' ) 2349 ), 2350 ), 2351 'about' => array( 2352 'post_type' => 'page', 2353 'post_title' => _x( 'About', 'Theme starter content' ), 2354 'post_content' => sprintf( 2355 "<!-- wp:paragraph -->\n<p>%s</p>\n<!-- /wp:paragraph -->", 2356 _x( 'You might be an artist who would like to introduce yourself and your work here or maybe you’re a business with a mission to describe.', 'Theme starter content' ) 2357 ), 2358 ), 2359 'contact' => array( 2360 'post_type' => 'page', 2361 'post_title' => _x( 'Contact', 'Theme starter content' ), 2362 'post_content' => sprintf( 2363 "<!-- wp:paragraph -->\n<p>%s</p>\n<!-- /wp:paragraph -->", 2364 _x( 'This is a page with some basic contact information, such as an address and phone number. You might also try a plugin to add a contact form.', 'Theme starter content' ) 2365 ), 2366 ), 2367 'blog' => array( 2368 'post_type' => 'page', 2369 'post_title' => _x( 'Blog', 'Theme starter content' ), 2370 ), 2371 'news' => array( 2372 'post_type' => 'page', 2373 'post_title' => _x( 'News', 'Theme starter content' ), 2374 ), 2375 2376 'homepage-section' => array( 2377 'post_type' => 'page', 2378 'post_title' => _x( 'A homepage section', 'Theme starter content' ), 2379 'post_content' => sprintf( 2380 "<!-- wp:paragraph -->\n<p>%s</p>\n<!-- /wp:paragraph -->", 2381 _x( 'This is an example of a homepage section. Homepage sections can be any page other than the homepage itself, including the page that shows your latest blog posts.', 'Theme starter content' ) 2382 ), 2383 ), 2384 ), 2385 ); 2386 2387 $content = array(); 2388 2389 foreach ( $config as $type => $args ) { 2390 switch ( $type ) { 2391 // Use options and theme_mods as-is. 2392 case 'options': 2393 case 'theme_mods': 2394 $content[ $type ] = $config[ $type ]; 2395 break; 2396 2397 // Widgets are grouped into sidebars. 2398 case 'widgets': 2399 foreach ( $config[ $type ] as $sidebar_id => $widgets ) { 2400 foreach ( $widgets as $id => $widget ) { 2401 if ( is_array( $widget ) ) { 2402 2403 // Item extends core content. 2404 if ( ! empty( $core_content[ $type ][ $id ] ) ) { 2405 $widget = array( 2406 $core_content[ $type ][ $id ][0], 2407 array_merge( $core_content[ $type ][ $id ][1], $widget ), 2408 ); 2409 } 2410 2411 $content[ $type ][ $sidebar_id ][] = $widget; 2412 } elseif ( is_string( $widget ) 2413 && ! empty( $core_content[ $type ] ) 2414 && ! empty( $core_content[ $type ][ $widget ] ) 2415 ) { 2416 $content[ $type ][ $sidebar_id ][] = $core_content[ $type ][ $widget ]; 2417 } 2418 } 2419 } 2420 break; 2421 2422 // And nav menu items are grouped into nav menus. 2423 case 'nav_menus': 2424 foreach ( $config[ $type ] as $nav_menu_location => $nav_menu ) { 2425 2426 // Ensure nav menus get a name. 2427 if ( empty( $nav_menu['name'] ) ) { 2428 $nav_menu['name'] = $nav_menu_location; 2429 } 2430 2431 $content[ $type ][ $nav_menu_location ]['name'] = $nav_menu['name']; 2432 2433 foreach ( $nav_menu['items'] as $id => $nav_menu_item ) { 2434 if ( is_array( $nav_menu_item ) ) { 2435 2436 // Item extends core content. 2437 if ( ! empty( $core_content[ $type ][ $id ] ) ) { 2438 $nav_menu_item = array_merge( $core_content[ $type ][ $id ], $nav_menu_item ); 2439 } 2440 2441 $content[ $type ][ $nav_menu_location ]['items'][] = $nav_menu_item; 2442 } elseif ( is_string( $nav_menu_item ) 2443 && ! empty( $core_content[ $type ] ) 2444 && ! empty( $core_content[ $type ][ $nav_menu_item ] ) 2445 ) { 2446 $content[ $type ][ $nav_menu_location ]['items'][] = $core_content[ $type ][ $nav_menu_item ]; 2447 } 2448 } 2449 } 2450 break; 2451 2452 // Attachments are posts but have special treatment. 2453 case 'attachments': 2454 foreach ( $config[ $type ] as $id => $item ) { 2455 if ( ! empty( $item['file'] ) ) { 2456 $content[ $type ][ $id ] = $item; 2457 } 2458 } 2459 break; 2460 2461 // All that's left now are posts (besides attachments). 2462 // Not a default case for the sake of clarity and future work. 2463 case 'posts': 2464 foreach ( $config[ $type ] as $id => $item ) { 2465 if ( is_array( $item ) ) { 2466 2467 // Item extends core content. 2468 if ( ! empty( $core_content[ $type ][ $id ] ) ) { 2469 $item = array_merge( $core_content[ $type ][ $id ], $item ); 2470 } 2471 2472 // Enforce a subset of fields. 2473 $content[ $type ][ $id ] = wp_array_slice_assoc( 2474 $item, 2475 array( 2476 'post_type', 2477 'post_title', 2478 'post_excerpt', 2479 'post_name', 2480 'post_content', 2481 'menu_order', 2482 'comment_status', 2483 'thumbnail', 2484 'template', 2485 ) 2486 ); 2487 } elseif ( is_string( $item ) && ! empty( $core_content[ $type ][ $item ] ) ) { 2488 $content[ $type ][ $item ] = $core_content[ $type ][ $item ]; 2489 } 2490 } 2491 break; 2492 } 2493 } 2494 2495 /** 2496 * Filters the expanded array of starter content. 2497 * 2498 * @since 4.7.0 2499 * 2500 * @param array $content Array of starter content. 2501 * @param array $config Array of theme-specific starter content configuration. 2502 */ 2503 return apply_filters( 'get_theme_starter_content', $content, $config ); 2504 } 2505 2506 /** 2507 * Registers theme support for a given feature. 2508 * 2509 * Must be called in the theme's functions.php file to work. 2510 * If attached to a hook, it must be {@see 'after_setup_theme'}. 2511 * The {@see 'init'} hook may be too late for some features. 2512 * 2513 * Example usage: 2514 * 2515 * add_theme_support( 'title-tag' ); 2516 * add_theme_support( 'custom-logo', array( 2517 * 'height' => 480, 2518 * 'width' => 720, 2519 * ) ); 2520 * 2521 * @since 2.9.0 2522 * @since 3.4.0 The `custom-header-uploads` feature was deprecated. 2523 * @since 3.6.0 The `html5` feature was added. 2524 * @since 3.9.0 The `html5` feature now also accepts 'gallery' and 'caption'. 2525 * @since 4.1.0 The `title-tag` feature was added. 2526 * @since 4.5.0 The `customize-selective-refresh-widgets` feature was added. 2527 * @since 4.7.0 The `starter-content` feature was added. 2528 * @since 5.0.0 The `responsive-embeds`, `align-wide`, `dark-editor-style`, `disable-custom-colors`, 2529 * `disable-custom-font-sizes`, `editor-color-palette`, `editor-font-sizes`, 2530 * `editor-styles`, and `wp-block-styles` features were added. 2531 * @since 5.3.0 The `html5` feature now also accepts 'script' and 'style'. 2532 * @since 5.3.0 Formalized the existing and already documented `...$args` parameter 2533 * by adding it to the function signature. 2534 * @since 5.5.0 The `core-block-patterns` feature was added and is enabled by default. 2535 * @since 5.5.0 The `custom-logo` feature now also accepts 'unlink-homepage-logo'. 2536 * @since 5.6.0 The `post-formats` feature warns if no array is passed. 2537 * @since 5.8.0 The `widgets-block-editor` feature enables the Widgets block editor. 2538 * 2539 * @global array $_wp_theme_features 2540 * 2541 * @param string $feature The feature being added. Likely core values include: 2542 * - 'admin-bar' 2543 * - 'align-wide' 2544 * - 'automatic-feed-links' 2545 * - 'core-block-patterns' 2546 * - 'custom-background' 2547 * - 'custom-header' 2548 * - 'custom-line-height' 2549 * - 'custom-logo' 2550 * - 'customize-selective-refresh-widgets' 2551 * - 'custom-spacing' 2552 * - 'custom-units' 2553 * - 'dark-editor-style' 2554 * - 'disable-custom-colors' 2555 * - 'disable-custom-font-sizes' 2556 * - 'editor-color-palette' 2557 * - 'editor-gradient-presets' 2558 * - 'editor-font-sizes' 2559 * - 'editor-styles' 2560 * - 'featured-content' 2561 * - 'html5' 2562 * - 'menus' 2563 * - 'post-formats' 2564 * - 'post-thumbnails' 2565 * - 'responsive-embeds' 2566 * - 'starter-content' 2567 * - 'title-tag' 2568 * - 'wp-block-styles' 2569 * - 'widgets' 2570 * - 'widgets-block-editor' 2571 * @param mixed ...$args Optional extra arguments to pass along with certain features. 2572 * @return void|false Void on success, false on failure. 2573 */ 2574 function add_theme_support( $feature, ...$args ) { 2575 global $_wp_theme_features; 2576 2577 if ( ! $args ) { 2578 $args = true; 2579 } 2580 2581 switch ( $feature ) { 2582 case 'post-thumbnails': 2583 // All post types are already supported. 2584 if ( true === get_theme_support( 'post-thumbnails' ) ) { 2585 return; 2586 } 2587 2588 /* 2589 * Merge post types with any that already declared their support 2590 * for post thumbnails. 2591 */ 2592 if ( isset( $args[0] ) && is_array( $args[0] ) && isset( $_wp_theme_features['post-thumbnails'] ) ) { 2593 $args[0] = array_unique( array_merge( $_wp_theme_features['post-thumbnails'][0], $args[0] ) ); 2594 } 2595 2596 break; 2597 2598 case 'post-formats': 2599 if ( isset( $args[0] ) && is_array( $args[0] ) ) { 2600 $post_formats = get_post_format_slugs(); 2601 unset( $post_formats['standard'] ); 2602 2603 $args[0] = array_intersect( $args[0], array_keys( $post_formats ) ); 2604 } else { 2605 _doing_it_wrong( 2606 "add_theme_support( 'post-formats' )", 2607 __( 'You need to pass an array of post formats.' ), 2608 '5.6.0' 2609 ); 2610 return false; 2611 } 2612 break; 2613 2614 case 'html5': 2615 // You can't just pass 'html5', you need to pass an array of types. 2616 if ( empty( $args[0] ) || ! is_array( $args[0] ) ) { 2617 _doing_it_wrong( 2618 "add_theme_support( 'html5' )", 2619 __( 'You need to pass an array of types.' ), 2620 '3.6.1' 2621 ); 2622 2623 if ( ! empty( $args[0] ) && ! is_array( $args[0] ) ) { 2624 return false; 2625 } 2626 2627 // Build an array of types for back-compat. 2628 $args = array( 0 => array( 'comment-list', 'comment-form', 'search-form' ) ); 2629 } 2630 2631 // Calling 'html5' again merges, rather than overwrites. 2632 if ( isset( $_wp_theme_features['html5'] ) ) { 2633 $args[0] = array_merge( $_wp_theme_features['html5'][0], $args[0] ); 2634 } 2635 break; 2636 2637 case 'custom-logo': 2638 if ( true === $args ) { 2639 $args = array( 0 => array() ); 2640 } 2641 $defaults = array( 2642 'width' => null, 2643 'height' => null, 2644 'flex-width' => false, 2645 'flex-height' => false, 2646 'header-text' => '', 2647 'unlink-homepage-logo' => false, 2648 ); 2649 $args[0] = wp_parse_args( array_intersect_key( $args[0], $defaults ), $defaults ); 2650 2651 // Allow full flexibility if no size is specified. 2652 if ( is_null( $args[0]['width'] ) && is_null( $args[0]['height'] ) ) { 2653 $args[0]['flex-width'] = true; 2654 $args[0]['flex-height'] = true; 2655 } 2656 break; 2657 2658 case 'custom-header-uploads': 2659 return add_theme_support( 'custom-header', array( 'uploads' => true ) ); 2660 2661 case 'custom-header': 2662 if ( true === $args ) { 2663 $args = array( 0 => array() ); 2664 } 2665 2666 $defaults = array( 2667 'default-image' => '', 2668 'random-default' => false, 2669 'width' => 0, 2670 'height' => 0, 2671 'flex-height' => false, 2672 'flex-width' => false, 2673 'default-text-color' => '', 2674 'header-text' => true, 2675 'uploads' => true, 2676 'wp-head-callback' => '', 2677 'admin-head-callback' => '', 2678 'admin-preview-callback' => '', 2679 'video' => false, 2680 'video-active-callback' => 'is_front_page', 2681 ); 2682 2683 $jit = isset( $args[0]['__jit'] ); 2684 unset( $args[0]['__jit'] ); 2685 2686 // Merge in data from previous add_theme_support() calls. 2687 // The first value registered wins. (A child theme is set up first.) 2688 if ( isset( $_wp_theme_features['custom-header'] ) ) { 2689 $args[0] = wp_parse_args( $_wp_theme_features['custom-header'][0], $args[0] ); 2690 } 2691 2692 // Load in the defaults at the end, as we need to insure first one wins. 2693 // This will cause all constants to be defined, as each arg will then be set to the default. 2694 if ( $jit ) { 2695 $args[0] = wp_parse_args( $args[0], $defaults ); 2696 } 2697 2698 /* 2699 * If a constant was defined, use that value. Otherwise, define the constant to ensure 2700 * the constant is always accurate (and is not defined later, overriding our value). 2701 * As stated above, the first value wins. 2702 * Once we get to wp_loaded (just-in-time), define any constants we haven't already. 2703 * Constants are lame. Don't reference them. This is just for backward compatibility. 2704 */ 2705 2706 if ( defined( 'NO_HEADER_TEXT' ) ) { 2707 $args[0]['header-text'] = ! NO_HEADER_TEXT; 2708 } elseif ( isset( $args[0]['header-text'] ) ) { 2709 define( 'NO_HEADER_TEXT', empty( $args[0]['header-text'] ) ); 2710 } 2711 2712 if ( defined( 'HEADER_IMAGE_WIDTH' ) ) { 2713 $args[0]['width'] = (int) HEADER_IMAGE_WIDTH; 2714 } elseif ( isset( $args[0]['width'] ) ) { 2715 define( 'HEADER_IMAGE_WIDTH', (int) $args[0]['width'] ); 2716 } 2717 2718 if ( defined( 'HEADER_IMAGE_HEIGHT' ) ) { 2719 $args[0]['height'] = (int) HEADER_IMAGE_HEIGHT; 2720 } elseif ( isset( $args[0]['height'] ) ) { 2721 define( 'HEADER_IMAGE_HEIGHT', (int) $args[0]['height'] ); 2722 } 2723 2724 if ( defined( 'HEADER_TEXTCOLOR' ) ) { 2725 $args[0]['default-text-color'] = HEADER_TEXTCOLOR; 2726 } elseif ( isset( $args[0]['default-text-color'] ) ) { 2727 define( 'HEADER_TEXTCOLOR', $args[0]['default-text-color'] ); 2728 } 2729 2730 if ( defined( 'HEADER_IMAGE' ) ) { 2731 $args[0]['default-image'] = HEADER_IMAGE; 2732 } elseif ( isset( $args[0]['default-image'] ) ) { 2733 define( 'HEADER_IMAGE', $args[0]['default-image'] ); 2734 } 2735 2736 if ( $jit && ! empty( $args[0]['default-image'] ) ) { 2737 $args[0]['random-default'] = false; 2738 } 2739 2740 // If headers are supported, and we still don't have a defined width or height, 2741 // we have implicit flex sizes. 2742 if ( $jit ) { 2743 if ( empty( $args[0]['width'] ) && empty( $args[0]['flex-width'] ) ) { 2744 $args[0]['flex-width'] = true; 2745 } 2746 if ( empty( $args[0]['height'] ) && empty( $args[0]['flex-height'] ) ) { 2747 $args[0]['flex-height'] = true; 2748 } 2749 } 2750 2751 break; 2752 2753 case 'custom-background': 2754 if ( true === $args ) { 2755 $args = array( 0 => array() ); 2756 } 2757 2758 $defaults = array( 2759 'default-image' => '', 2760 'default-preset' => 'default', 2761 'default-position-x' => 'left', 2762 'default-position-y' => 'top', 2763 'default-size' => 'auto', 2764 'default-repeat' => 'repeat', 2765 'default-attachment' => 'scroll', 2766 'default-color' => '', 2767 'wp-head-callback' => '_custom_background_cb', 2768 'admin-head-callback' => '', 2769 'admin-preview-callback' => '', 2770 ); 2771 2772 $jit = isset( $args[0]['__jit'] ); 2773 unset( $args[0]['__jit'] ); 2774 2775 // Merge in data from previous add_theme_support() calls. The first value registered wins. 2776 if ( isset( $_wp_theme_features['custom-background'] ) ) { 2777 $args[0] = wp_parse_args( $_wp_theme_features['custom-background'][0], $args[0] ); 2778 } 2779 2780 if ( $jit ) { 2781 $args[0] = wp_parse_args( $args[0], $defaults ); 2782 } 2783 2784 if ( defined( 'BACKGROUND_COLOR' ) ) { 2785 $args[0]['default-color'] = BACKGROUND_COLOR; 2786 } elseif ( isset( $args[0]['default-color'] ) || $jit ) { 2787 define( 'BACKGROUND_COLOR', $args[0]['default-color'] ); 2788 } 2789 2790 if ( defined( 'BACKGROUND_IMAGE' ) ) { 2791 $args[0]['default-image'] = BACKGROUND_IMAGE; 2792 } elseif ( isset( $args[0]['default-image'] ) || $jit ) { 2793 define( 'BACKGROUND_IMAGE', $args[0]['default-image'] ); 2794 } 2795 2796 break; 2797 2798 // Ensure that 'title-tag' is accessible in the admin. 2799 case 'title-tag': 2800 // Can be called in functions.php but must happen before wp_loaded, i.e. not in header.php. 2801 if ( did_action( 'wp_loaded' ) ) { 2802 _doing_it_wrong( 2803 "add_theme_support( 'title-tag' )", 2804 sprintf( 2805 /* translators: 1: title-tag, 2: wp_loaded */ 2806 __( 'Theme support for %1$s should be registered before the %2$s hook.' ), 2807 '<code>title-tag</code>', 2808 '<code>wp_loaded</code>' 2809 ), 2810 '4.1.0' 2811 ); 2812 2813 return false; 2814 } 2815 } 2816 2817 $_wp_theme_features[ $feature ] = $args; 2818 } 2819 2820 /** 2821 * Registers the internal custom header and background routines. 2822 * 2823 * @since 3.4.0 2824 * @access private 2825 * 2826 * @global Custom_Image_Header $custom_image_header 2827 * @global Custom_Background $custom_background 2828 */ 2829 function _custom_header_background_just_in_time() { 2830 global $custom_image_header, $custom_background; 2831 2832 if ( current_theme_supports( 'custom-header' ) ) { 2833 // In case any constants were defined after an add_custom_image_header() call, re-run. 2834 add_theme_support( 'custom-header', array( '__jit' => true ) ); 2835 2836 $args = get_theme_support( 'custom-header' ); 2837 if ( $args[0]['wp-head-callback'] ) { 2838 add_action( 'wp_head', $args[0]['wp-head-callback'] ); 2839 } 2840 2841 if ( is_admin() ) { 2842 require_once ABSPATH . 'wp-admin/includes/class-custom-image-header.php'; 2843 $custom_image_header = new Custom_Image_Header( $args[0]['admin-head-callback'], $args[0]['admin-preview-callback'] ); 2844 } 2845 } 2846 2847 if ( current_theme_supports( 'custom-background' ) ) { 2848 // In case any constants were defined after an add_custom_background() call, re-run. 2849 add_theme_support( 'custom-background', array( '__jit' => true ) ); 2850 2851 $args = get_theme_support( 'custom-background' ); 2852 add_action( 'wp_head', $args[0]['wp-head-callback'] ); 2853 2854 if ( is_admin() ) { 2855 require_once ABSPATH . 'wp-admin/includes/class-custom-background.php'; 2856 $custom_background = new Custom_Background( $args[0]['admin-head-callback'], $args[0]['admin-preview-callback'] ); 2857 } 2858 } 2859 } 2860 2861 /** 2862 * Adds CSS to hide header text for custom logo, based on Customizer setting. 2863 * 2864 * @since 4.5.0 2865 * @access private 2866 */ 2867 function _custom_logo_header_styles() { 2868 if ( ! current_theme_supports( 'custom-header', 'header-text' ) 2869 && get_theme_support( 'custom-logo', 'header-text' ) 2870 && ! get_theme_mod( 'header_text', true ) 2871 ) { 2872 $classes = (array) get_theme_support( 'custom-logo', 'header-text' ); 2873 $classes = array_map( 'sanitize_html_class', $classes ); 2874 $classes = '.' . implode( ', .', $classes ); 2875 2876 $type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"'; 2877 ?> 2878 <!-- Custom Logo: hide header text --> 2879 <style id="custom-logo-css"<?php echo $type_attr; ?>> 2880 <?php echo $classes; ?> { 2881 position: absolute; 2882 clip: rect(1px, 1px, 1px, 1px); 2883 } 2884 </style> 2885 <?php 2886 } 2887 } 2888 2889 /** 2890 * Gets the theme support arguments passed when registering that support. 2891 * 2892 * Example usage: 2893 * 2894 * get_theme_support( 'custom-logo' ); 2895 * get_theme_support( 'custom-header', 'width' ); 2896 * 2897 * @since 3.1.0 2898 * @since 5.3.0 Formalized the existing and already documented `...$args` parameter 2899 * by adding it to the function signature. 2900 * 2901 * @global array $_wp_theme_features 2902 * 2903 * @param string $feature The feature to check. See add_theme_support() for the list 2904 * of possible values. 2905 * @param mixed ...$args Optional extra arguments to be checked against certain features. 2906 * @return mixed The array of extra arguments or the value for the registered feature. 2907 */ 2908 function get_theme_support( $feature, ...$args ) { 2909 global $_wp_theme_features; 2910 2911 if ( ! isset( $_wp_theme_features[ $feature ] ) ) { 2912 return false; 2913 } 2914 2915 if ( ! $args ) { 2916 return $_wp_theme_features[ $feature ]; 2917 } 2918 2919 switch ( $feature ) { 2920 case 'custom-logo': 2921 case 'custom-header': 2922 case 'custom-background': 2923 if ( isset( $_wp_theme_features[ $feature ][0][ $args[0] ] ) ) { 2924 return $_wp_theme_features[ $feature ][0][ $args[0] ]; 2925 } 2926 return false; 2927 2928 default: 2929 return $_wp_theme_features[ $feature ]; 2930 } 2931 } 2932 2933 /** 2934 * Allows a theme to de-register its support of a certain feature 2935 * 2936 * Should be called in the theme's functions.php file. Generally would 2937 * be used for child themes to override support from the parent theme. 2938 * 2939 * @since 3.0.0 2940 * 2941 * @see add_theme_support() 2942 * 2943 * @param string $feature The feature being removed. See add_theme_support() for the list 2944 * of possible values. 2945 * @return bool|void Whether feature was removed. 2946 */ 2947 function remove_theme_support( $feature ) { 2948 // Do not remove internal registrations that are not used directly by themes. 2949 if ( in_array( $feature, array( 'editor-style', 'widgets', 'menus' ), true ) ) { 2950 return false; 2951 } 2952 2953 return _remove_theme_support( $feature ); 2954 } 2955 2956 /** 2957 * Do not use. Removes theme support internally without knowledge of those not used 2958 * by themes directly. 2959 * 2960 * @access private 2961 * @since 3.1.0 2962 * @global array $_wp_theme_features 2963 * @global Custom_Image_Header $custom_image_header 2964 * @global Custom_Background $custom_background 2965 * 2966 * @param string $feature The feature being removed. See add_theme_support() for the list 2967 * of possible values. 2968 * @return bool True if support was removed, false if the feature was not registered. 2969 */ 2970 function _remove_theme_support( $feature ) { 2971 global $_wp_theme_features; 2972 2973 switch ( $feature ) { 2974 case 'custom-header-uploads': 2975 if ( ! isset( $_wp_theme_features['custom-header'] ) ) { 2976 return false; 2977 } 2978 add_theme_support( 'custom-header', array( 'uploads' => false ) ); 2979 return; // Do not continue - custom-header-uploads no longer exists. 2980 } 2981 2982 if ( ! isset( $_wp_theme_features[ $feature ] ) ) { 2983 return false; 2984 } 2985 2986 switch ( $feature ) { 2987 case 'custom-header': 2988 if ( ! did_action( 'wp_loaded' ) ) { 2989 break; 2990 } 2991 $support = get_theme_support( 'custom-header' ); 2992 if ( isset( $support[0]['wp-head-callback'] ) ) { 2993 remove_action( 'wp_head', $support[0]['wp-head-callback'] ); 2994 } 2995 if ( isset( $GLOBALS['custom_image_header'] ) ) { 2996 remove_action( 'admin_menu', array( $GLOBALS['custom_image_header'], 'init' ) ); 2997 unset( $GLOBALS['custom_image_header'] ); 2998 } 2999 break; 3000 3001 case 'custom-background': 3002 if ( ! did_action( 'wp_loaded' ) ) { 3003 break; 3004 } 3005 $support = get_theme_support( 'custom-background' ); 3006 if ( isset( $support[0]['wp-head-callback'] ) ) { 3007 remove_action( 'wp_head', $support[0]['wp-head-callback'] ); 3008 } 3009 remove_action( 'admin_menu', array( $GLOBALS['custom_background'], 'init' ) ); 3010 unset( $GLOBALS['custom_background'] ); 3011 break; 3012 } 3013 3014 unset( $_wp_theme_features[ $feature ] ); 3015 3016 return true; 3017 } 3018 3019 /** 3020 * Checks a theme's support for a given feature. 3021 * 3022 * Example usage: 3023 * 3024 * current_theme_supports( 'custom-logo' ); 3025 * current_theme_supports( 'html5', 'comment-form' ); 3026 * 3027 * @since 2.9.0 3028 * @since 5.3.0 Formalized the existing and already documented `...$args` parameter 3029 * by adding it to the function signature. 3030 * 3031 * @global array $_wp_theme_features 3032 * 3033 * @param string $feature The feature being checked. See add_theme_support() for the list 3034 * of possible values. 3035 * @param mixed ...$args Optional extra arguments to be checked against certain features. 3036 * @return bool True if the active theme supports the feature, false otherwise. 3037 */ 3038 function current_theme_supports( $feature, ...$args ) { 3039 global $_wp_theme_features; 3040 3041 if ( 'custom-header-uploads' === $feature ) { 3042 return current_theme_supports( 'custom-header', 'uploads' ); 3043 } 3044 3045 if ( ! isset( $_wp_theme_features[ $feature ] ) ) { 3046 return false; 3047 } 3048 3049 // If no args passed then no extra checks need to be performed. 3050 if ( ! $args ) { 3051 /** This filter is documented in wp-includes/theme.php */ 3052 return apply_filters( "current_theme_supports-{$feature}", true, $args, $_wp_theme_features[ $feature ] ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores 3053 } 3054 3055 switch ( $feature ) { 3056 case 'post-thumbnails': 3057 /* 3058 * post-thumbnails can be registered for only certain content/post types 3059 * by passing an array of types to add_theme_support(). 3060 * If no array was passed, then any type is accepted. 3061 */ 3062 if ( true === $_wp_theme_features[ $feature ] ) { // Registered for all types. 3063 return true; 3064 } 3065 $content_type = $args[0]; 3066 return in_array( $content_type, $_wp_theme_features[ $feature ][0], true ); 3067 3068 case 'html5': 3069 case 'post-formats': 3070 /* 3071 * Specific post formats can be registered by passing an array of types 3072 * to add_theme_support(). 3073 * 3074 * Specific areas of HTML5 support *must* be passed via an array to add_theme_support(). 3075 */ 3076 $type = $args[0]; 3077 return in_array( $type, $_wp_theme_features[ $feature ][0], true ); 3078 3079 case 'custom-logo': 3080 case 'custom-header': 3081 case 'custom-background': 3082 // Specific capabilities can be registered by passing an array to add_theme_support(). 3083 return ( isset( $_wp_theme_features[ $feature ][0][ $args[0] ] ) && $_wp_theme_features[ $feature ][0][ $args[0] ] ); 3084 } 3085 3086 /** 3087 * Filters whether the active theme supports a specific feature. 3088 * 3089 * The dynamic portion of the hook name, `$feature`, refers to the specific 3090 * theme feature. See add_theme_support() for the list of possible values. 3091 * 3092 * @since 3.4.0 3093 * 3094 * @param bool $supports Whether the active theme supports the given feature. Default true. 3095 * @param array $args Array of arguments for the feature. 3096 * @param string $feature The theme feature. 3097 */ 3098 return apply_filters( "current_theme_supports-{$feature}", true, $args, $_wp_theme_features[ $feature ] ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores 3099 } 3100 3101 /** 3102 * Checks a theme's support for a given feature before loading the functions which implement it. 3103 * 3104 * @since 2.9.0 3105 * 3106 * @param string $feature The feature being checked. See add_theme_support() for the list 3107 * of possible values. 3108 * @param string $include Path to the file. 3109 * @return bool True if the active theme supports the supplied feature, false otherwise. 3110 */ 3111 function require_if_theme_supports( $feature, $include ) { 3112 if ( current_theme_supports( $feature ) ) { 3113 require $include; 3114 return true; 3115 } 3116 return false; 3117 } 3118 3119 /** 3120 * Registers a theme feature for use in add_theme_support(). 3121 * 3122 * This does not indicate that the active theme supports the feature, it only describes 3123 * the feature's supported options. 3124 * 3125 * @since 5.5.0 3126 * 3127 * @see add_theme_support() 3128 * 3129 * @global array $_wp_registered_theme_features 3130 * 3131 * @param string $feature The name uniquely identifying the feature. See add_theme_support() 3132 * for the list of possible values. 3133 * @param array $args { 3134 * Data used to describe the theme. 3135 * 3136 * @type string $type The type of data associated with this feature. 3137 * Valid values are 'string', 'boolean', 'integer', 3138 * 'number', 'array', and 'object'. Defaults to 'boolean'. 3139 * @type bool $variadic Does this feature utilize the variadic support 3140 * of add_theme_support(), or are all arguments specified 3141 * as the second parameter. Must be used with the "array" type. 3142 * @type string $description A short description of the feature. Included in 3143 * the Themes REST API schema. Intended for developers. 3144 * @type bool|array $show_in_rest { 3145 * Whether this feature should be included in the Themes REST API endpoint. 3146 * Defaults to not being included. When registering an 'array' or 'object' type, 3147 * this argument must be an array with the 'schema' key. 3148 * 3149 * @type array $schema Specifies the JSON Schema definition describing 3150 * the feature. If any objects in the schema do not include 3151 * the 'additionalProperties' keyword, it is set to false. 3152 * @type string $name An alternate name to be used as the property name 3153 * in the REST API. 3154 * @type callable $prepare_callback A function used to format the theme support in the REST API. 3155 * Receives the raw theme support value. 3156 * } 3157 * } 3158 * @return true|WP_Error True if the theme feature was successfully registered, a WP_Error object if not. 3159 */ 3160 function register_theme_feature( $feature, $args = array() ) { 3161 global $_wp_registered_theme_features; 3162 3163 if ( ! is_array( $_wp_registered_theme_features ) ) { 3164 $_wp_registered_theme_features = array(); 3165 } 3166 3167 $defaults = array( 3168 'type' => 'boolean', 3169 'variadic' => false, 3170 'description' => '', 3171 'show_in_rest' => false, 3172 ); 3173 3174 $args = wp_parse_args( $args, $defaults ); 3175 3176 if ( true === $args['show_in_rest'] ) { 3177 $args['show_in_rest'] = array(); 3178 } 3179 3180 if ( is_array( $args['show_in_rest'] ) ) { 3181 $args['show_in_rest'] = wp_parse_args( 3182 $args['show_in_rest'], 3183 array( 3184 'schema' => array(), 3185 'name' => $feature, 3186 'prepare_callback' => null, 3187 ) 3188 ); 3189 } 3190 3191 if ( ! in_array( $args['type'], array( 'string', 'boolean', 'integer', 'number', 'array', 'object' ), true ) ) { 3192 return new WP_Error( 3193 'invalid_type', 3194 __( 'The feature "type" is not valid JSON Schema type.' ) 3195 ); 3196 } 3197 3198 if ( true === $args['variadic'] && 'array' !== $args['type'] ) { 3199 return new WP_Error( 3200 'variadic_must_be_array', 3201 __( 'When registering a "variadic" theme feature, the "type" must be an "array".' ) 3202 ); 3203 } 3204 3205 if ( false !== $args['show_in_rest'] && in_array( $args['type'], array( 'array', 'object' ), true ) ) { 3206 if ( ! is_array( $args['show_in_rest'] ) || empty( $args['show_in_rest']['schema'] ) ) { 3207 return new WP_Error( 3208 'missing_schema', 3209 __( 'When registering an "array" or "object" feature to show in the REST API, the feature\'s schema must also be defined.' ) 3210 ); 3211 } 3212 3213 if ( 'array' === $args['type'] && ! isset( $args['show_in_rest']['schema']['items'] ) ) { 3214 return new WP_Error( 3215 'missing_schema_items', 3216 __( 'When registering an "array" feature, the feature\'s schema must include the "items" keyword.' ) 3217 ); 3218 } 3219 3220 if ( 'object' === $args['type'] && ! isset( $args['show_in_rest']['schema']['properties'] ) ) { 3221 return new WP_Error( 3222 'missing_schema_properties', 3223 __( 'When registering an "object" feature, the feature\'s schema must include the "properties" keyword.' ) 3224 ); 3225 } 3226 } 3227 3228 if ( is_array( $args['show_in_rest'] ) ) { 3229 if ( isset( $args['show_in_rest']['prepare_callback'] ) 3230 && ! is_callable( $args['show_in_rest']['prepare_callback'] ) 3231 ) { 3232 return new WP_Error( 3233 'invalid_rest_prepare_callback', 3234 sprintf( 3235 /* translators: %s: prepare_callback */ 3236 __( 'The "%s" must be a callable function.' ), 3237 'prepare_callback' 3238 ) 3239 ); 3240 } 3241 3242 $args['show_in_rest']['schema'] = wp_parse_args( 3243 $args['show_in_rest']['schema'], 3244 array( 3245 'description' => $args['description'], 3246 'type' => $args['type'], 3247 'default' => false, 3248 ) 3249 ); 3250 3251 if ( is_bool( $args['show_in_rest']['schema']['default'] ) 3252 && ! in_array( 'boolean', (array) $args['show_in_rest']['schema']['type'], true ) 3253 ) { 3254 // Automatically include the "boolean" type when the default value is a boolean. 3255 $args['show_in_rest']['schema']['type'] = (array) $args['show_in_rest']['schema']['type']; 3256 array_unshift( $args['show_in_rest']['schema']['type'], 'boolean' ); 3257 } 3258 3259 $args['show_in_rest']['schema'] = rest_default_additional_properties_to_false( $args['show_in_rest']['schema'] ); 3260 } 3261 3262 $_wp_registered_theme_features[ $feature ] = $args; 3263 3264 return true; 3265 } 3266 3267 /** 3268 * Gets the list of registered theme features. 3269 * 3270 * @since 5.5.0 3271 * 3272 * @global array $_wp_registered_theme_features 3273 * 3274 * @return array[] List of theme features, keyed by their name. 3275 */ 3276 function get_registered_theme_features() { 3277 global $_wp_registered_theme_features; 3278 3279 if ( ! is_array( $_wp_registered_theme_features ) ) { 3280 return array(); 3281 } 3282 3283 return $_wp_registered_theme_features; 3284 } 3285 3286 /** 3287 * Gets the registration config for a theme feature. 3288 * 3289 * @since 5.5.0 3290 * 3291 * @global array $_wp_registered_theme_features 3292 * 3293 * @param string $feature The feature name. See add_theme_support() for the list 3294 * of possible values. 3295 * @return array|null The registration args, or null if the feature was not registered. 3296 */ 3297 function get_registered_theme_feature( $feature ) { 3298 global $_wp_registered_theme_features; 3299 3300 if ( ! is_array( $_wp_registered_theme_features ) ) { 3301 return null; 3302 } 3303 3304 return isset( $_wp_registered_theme_features[ $feature ] ) ? $_wp_registered_theme_features[ $feature ] : null; 3305 } 3306 3307 /** 3308 * Checks an attachment being deleted to see if it's a header or background image. 3309 * 3310 * If true it removes the theme modification which would be pointing at the deleted 3311 * attachment. 3312 * 3313 * @access private 3314 * @since 3.0.0 3315 * @since 4.3.0 Also removes `header_image_data`. 3316 * @since 4.5.0 Also removes custom logo theme mods. 3317 * 3318 * @param int $id The attachment ID. 3319 */ 3320 function _delete_attachment_theme_mod( $id ) { 3321 $attachment_image = wp_get_attachment_url( $id ); 3322 $header_image = get_header_image(); 3323 $background_image = get_background_image(); 3324 $custom_logo_id = get_theme_mod( 'custom_logo' ); 3325 3326 if ( $custom_logo_id && $custom_logo_id == $id ) { 3327 remove_theme_mod( 'custom_logo' ); 3328 remove_theme_mod( 'header_text' ); 3329 } 3330 3331 if ( $header_image && $header_image == $attachment_image ) { 3332 remove_theme_mod( 'header_image' ); 3333 remove_theme_mod( 'header_image_data' ); 3334 } 3335 3336 if ( $background_image && $background_image == $attachment_image ) { 3337 remove_theme_mod( 'background_image' ); 3338 } 3339 } 3340 3341 /** 3342 * Checks if a theme has been changed and runs 'after_switch_theme' hook on the next WP load. 3343 * 3344 * See {@see 'after_switch_theme'}. 3345 * 3346 * @since 3.3.0 3347 */ 3348 function check_theme_switched() { 3349 $stylesheet = get_option( 'theme_switched' ); 3350 3351 if ( $stylesheet ) { 3352 $old_theme = wp_get_theme( $stylesheet ); 3353 3354 // Prevent widget & menu mapping from running since Customizer already called it up front. 3355 if ( get_option( 'theme_switched_via_customizer' ) ) { 3356 remove_action( 'after_switch_theme', '_wp_menus_changed' ); 3357 remove_action( 'after_switch_theme', '_wp_sidebars_changed' ); 3358 update_option( 'theme_switched_via_customizer', false ); 3359 } 3360 3361 if ( $old_theme->exists() ) { 3362 /** 3363 * Fires on the first WP load after a theme switch if the old theme still exists. 3364 * 3365 * This action fires multiple times and the parameters differs 3366 * according to the context, if the old theme exists or not. 3367 * If the old theme is missing, the parameter will be the slug 3368 * of the old theme. 3369 * 3370 * @since 3.3.0 3371 * 3372 * @param string $old_name Old theme name. 3373 * @param WP_Theme $old_theme WP_Theme instance of the old theme. 3374 */ 3375 do_action( 'after_switch_theme', $old_theme->get( 'Name' ), $old_theme ); 3376 } else { 3377 /** This action is documented in wp-includes/theme.php */ 3378 do_action( 'after_switch_theme', $stylesheet, $old_theme ); 3379 } 3380 3381 flush_rewrite_rules(); 3382 3383 update_option( 'theme_switched', false ); 3384 } 3385 } 3386 3387 /** 3388 * Includes and instantiates the WP_Customize_Manager class. 3389 * 3390 * Loads the Customizer at plugins_loaded when accessing the customize.php admin 3391 * page or when any request includes a wp_customize=on param or a customize_changeset 3392 * param (a UUID). This param is a signal for whether to bootstrap the Customizer when 3393 * WordPress is loading, especially in the Customizer preview 3394 * or when making Customizer Ajax requests for widgets or menus. 3395 * 3396 * @since 3.4.0 3397 * 3398 * @global WP_Customize_Manager $wp_customize 3399 */ 3400 function _wp_customize_include() { 3401 3402 $is_customize_admin_page = ( is_admin() && 'customize.php' === basename( $_SERVER['PHP_SELF'] ) ); 3403 $should_include = ( 3404 $is_customize_admin_page 3405 || 3406 ( isset( $_REQUEST['wp_customize'] ) && 'on' === $_REQUEST['wp_customize'] ) 3407 || 3408 ( ! empty( $_GET['customize_changeset_uuid'] ) || ! empty( $_POST['customize_changeset_uuid'] ) ) 3409 ); 3410 3411 if ( ! $should_include ) { 3412 return; 3413 } 3414 3415 /* 3416 * Note that wp_unslash() is not being used on the input vars because it is 3417 * called before wp_magic_quotes() gets called. Besides this fact, none of 3418 * the values should contain any characters needing slashes anyway. 3419 */ 3420 $keys = array( 3421 'changeset_uuid', 3422 'customize_changeset_uuid', 3423 'customize_theme', 3424 'theme', 3425 'customize_messenger_channel', 3426 'customize_autosaved', 3427 ); 3428 $input_vars = array_merge( 3429 wp_array_slice_assoc( $_GET, $keys ), 3430 wp_array_slice_assoc( $_POST, $keys ) 3431 ); 3432 3433 $theme = null; 3434 $autosaved = null; 3435 $messenger_channel = null; 3436 3437 // Value false indicates UUID should be determined after_setup_theme 3438 // to either re-use existing saved changeset or else generate a new UUID if none exists. 3439 $changeset_uuid = false; 3440 3441 // Set initially fo false since defaults to true for back-compat; 3442 // can be overridden via the customize_changeset_branching filter. 3443 $branching = false; 3444 3445 if ( $is_customize_admin_page && isset( $input_vars['changeset_uuid'] ) ) { 3446 $changeset_uuid = sanitize_key( $input_vars['changeset_uuid'] ); 3447 } elseif ( ! empty( $input_vars['customize_changeset_uuid'] ) ) { 3448 $changeset_uuid = sanitize_key( $input_vars['customize_changeset_uuid'] ); 3449 } 3450 3451 // Note that theme will be sanitized via WP_Theme. 3452 if ( $is_customize_admin_page && isset( $input_vars['theme'] ) ) { 3453 $theme = $input_vars['theme']; 3454 } elseif ( isset( $input_vars['customize_theme'] ) ) { 3455 $theme = $input_vars['customize_theme']; 3456 } 3457 3458 if ( ! empty( $input_vars['customize_autosaved'] ) ) { 3459 $autosaved = true; 3460 } 3461 3462 if ( isset( $input_vars['customize_messenger_channel'] ) ) { 3463 $messenger_channel = sanitize_key( $input_vars['customize_messenger_channel'] ); 3464 } 3465 3466 /* 3467 * Note that settings must be previewed even outside the customizer preview 3468 * and also in the customizer pane itself. This is to enable loading an existing 3469 * changeset into the customizer. Previewing the settings only has to be prevented 3470 * here in the case of a customize_save action because this will cause WP to think 3471 * there is nothing changed that needs to be saved. 3472 */ 3473 $is_customize_save_action = ( 3474 wp_doing_ajax() 3475 && 3476 isset( $_REQUEST['action'] ) 3477 && 3478 'customize_save' === wp_unslash( $_REQUEST['action'] ) 3479 ); 3480 $settings_previewed = ! $is_customize_save_action; 3481 3482 require_once ABSPATH . WPINC . '/class-wp-customize-manager.php'; 3483 $GLOBALS['wp_customize'] = new WP_Customize_Manager( 3484 compact( 3485 'changeset_uuid', 3486 'theme', 3487 'messenger_channel', 3488 'settings_previewed', 3489 'autosaved', 3490 'branching' 3491 ) 3492 ); 3493 } 3494 3495 /** 3496 * Publishes a snapshot's changes. 3497 * 3498 * @since 4.7.0 3499 * @access private 3500 * 3501 * @global wpdb $wpdb WordPress database abstraction object. 3502 * @global WP_Customize_Manager $wp_customize Customizer instance. 3503 * 3504 * @param string $new_status New post status. 3505 * @param string $old_status Old post status. 3506 * @param WP_Post $changeset_post Changeset post object. 3507 */ 3508 function _wp_customize_publish_changeset( $new_status, $old_status, $changeset_post ) { 3509 global $wp_customize, $wpdb; 3510 3511 $is_publishing_changeset = ( 3512 'customize_changeset' === $changeset_post->post_type 3513 && 3514 'publish' === $new_status 3515 && 3516 'publish' !== $old_status 3517 ); 3518 if ( ! $is_publishing_changeset ) { 3519 return; 3520 } 3521 3522 if ( empty( $wp_customize ) ) { 3523 require_once ABSPATH . WPINC . '/class-wp-customize-manager.php'; 3524 $wp_customize = new WP_Customize_Manager( 3525 array( 3526 'changeset_uuid' => $changeset_post->post_name, 3527 'settings_previewed' => false, 3528 ) 3529 ); 3530 } 3531 3532 if ( ! did_action( 'customize_register' ) ) { 3533 /* 3534 * When running from CLI or Cron, the customize_register action will need 3535 * to be triggered in order for core, themes, and plugins to register their 3536 * settings. Normally core will add_action( 'customize_register' ) at 3537 * priority 10 to register the core settings, and if any themes/plugins 3538 * also add_action( 'customize_register' ) at the same priority, they 3539 * will have a $wp_customize with those settings registered since they 3540 * call add_action() afterward, normally. However, when manually doing 3541 * the customize_register action after the setup_theme, then the order 3542 * will be reversed for two actions added at priority 10, resulting in 3543 * the core settings no longer being available as expected to themes/plugins. 3544 * So the following manually calls the method that registers the core 3545 * settings up front before doing the action. 3546 */ 3547 remove_action( 'customize_register', array( $wp_customize, 'register_controls' ) ); 3548 $wp_customize->register_controls(); 3549 3550 /** This filter is documented in /wp-includes/class-wp-customize-manager.php */ 3551 do_action( 'customize_register', $wp_customize ); 3552 } 3553 $wp_customize->_publish_changeset_values( $changeset_post->ID ); 3554 3555 /* 3556 * Trash the changeset post if revisions are not enabled. Unpublished 3557 * changesets by default get garbage collected due to the auto-draft status. 3558 * When a changeset post is published, however, it would no longer get cleaned 3559 * out. This is a problem when the changeset posts are never displayed anywhere, 3560 * since they would just be endlessly piling up. So here we use the revisions 3561 * feature to indicate whether or not a published changeset should get trashed 3562 * and thus garbage collected. 3563 */ 3564 if ( ! wp_revisions_enabled( $changeset_post ) ) { 3565 $wp_customize->trash_changeset_post( $changeset_post->ID ); 3566 } 3567 } 3568 3569 /** 3570 * Filters changeset post data upon insert to ensure post_name is intact. 3571 * 3572 * This is needed to prevent the post_name from being dropped when the post is 3573 * transitioned into pending status by a contributor. 3574 * 3575 * @since 4.7.0 3576 * 3577 * @see wp_insert_post() 3578 * 3579 * @param array $post_data An array of slashed post data. 3580 * @param array $supplied_post_data An array of sanitized, but otherwise unmodified post data. 3581 * @return array Filtered data. 3582 */ 3583 function _wp_customize_changeset_filter_insert_post_data( $post_data, $supplied_post_data ) { 3584 if ( isset( $post_data['post_type'] ) && 'customize_changeset' === $post_data['post_type'] ) { 3585 3586 // Prevent post_name from being dropped, such as when contributor saves a changeset post as pending. 3587 if ( empty( $post_data['post_name'] ) && ! empty( $supplied_post_data['post_name'] ) ) { 3588 $post_data['post_name'] = $supplied_post_data['post_name']; 3589 } 3590 } 3591 return $post_data; 3592 } 3593 3594 /** 3595 * Adds settings for the customize-loader script. 3596 * 3597 * @since 3.4.0 3598 */ 3599 function _wp_customize_loader_settings() { 3600 $admin_origin = parse_url( admin_url() ); 3601 $home_origin = parse_url( home_url() ); 3602 $cross_domain = ( strtolower( $admin_origin['host'] ) != strtolower( $home_origin['host'] ) ); 3603 3604 $browser = array( 3605 'mobile' => wp_is_mobile(), 3606 'ios' => wp_is_mobile() && preg_match( '/iPad|iPod|iPhone/', $_SERVER['HTTP_USER_AGENT'] ), 3607 ); 3608 3609 $settings = array( 3610 'url' => esc_url( admin_url( 'customize.php' ) ), 3611 'isCrossDomain' => $cross_domain, 3612 'browser' => $browser, 3613 'l10n' => array( 3614 'saveAlert' => __( 'The changes you made will be lost if you navigate away from this page.' ), 3615 'mainIframeTitle' => __( 'Customizer' ), 3616 ), 3617 ); 3618 3619 $script = 'var _wpCustomizeLoaderSettings = ' . wp_json_encode( $settings ) . ';'; 3620 3621 $wp_scripts = wp_scripts(); 3622 $data = $wp_scripts->get_data( 'customize-loader', 'data' ); 3623 if ( $data ) { 3624 $script = "$data\n$script"; 3625 } 3626 3627 $wp_scripts->add_data( 'customize-loader', 'data', $script ); 3628 } 3629 3630 /** 3631 * Returns a URL to load the Customizer. 3632 * 3633 * @since 3.4.0 3634 * 3635 * @param string $stylesheet Optional. Theme to customize. Defaults to active theme. 3636 * The theme's stylesheet will be urlencoded if necessary. 3637 * @return string 3638 */ 3639 function wp_customize_url( $stylesheet = '' ) { 3640 $url = admin_url( 'customize.php' ); 3641 if ( $stylesheet ) { 3642 $url .= '?theme=' . urlencode( $stylesheet ); 3643 } 3644 return esc_url( $url ); 3645 } 3646 3647 /** 3648 * Prints a script to check whether or not the Customizer is supported, 3649 * and apply either the no-customize-support or customize-support class 3650 * to the body. 3651 * 3652 * This function MUST be called inside the body tag. 3653 * 3654 * Ideally, call this function immediately after the body tag is opened. 3655 * This prevents a flash of unstyled content. 3656 * 3657 * It is also recommended that you add the "no-customize-support" class 3658 * to the body tag by default. 3659 * 3660 * @since 3.4.0 3661 * @since 4.7.0 Support for IE8 and below is explicitly removed via conditional comments. 3662 * @since 5.5.0 IE8 and older are no longer supported. 3663 */ 3664 function wp_customize_support_script() { 3665 $admin_origin = parse_url( admin_url() ); 3666 $home_origin = parse_url( home_url() ); 3667 $cross_domain = ( strtolower( $admin_origin['host'] ) != strtolower( $home_origin['host'] ) ); 3668 $type_attr = current_theme_supports( 'html5', 'script' ) ? '' : ' type="text/javascript"'; 3669 ?> 3670 <script<?php echo $type_attr; ?>> 3671 (function() { 3672 var request, b = document.body, c = 'className', cs = 'customize-support', rcs = new RegExp('(^|\\s+)(no-)?'+cs+'(\\s+|$)'); 3673 3674 <?php if ( $cross_domain ) : ?> 3675 request = (function(){ var xhr = new XMLHttpRequest(); return ('withCredentials' in xhr); })(); 3676 <?php else : ?> 3677 request = true; 3678 <?php endif; ?> 3679 3680 b[c] = b[c].replace( rcs, ' ' ); 3681 // The customizer requires postMessage and CORS (if the site is cross domain). 3682 b[c] += ( window.postMessage && request ? ' ' : ' no-' ) + cs; 3683 }()); 3684 </script> 3685 <?php 3686 } 3687 3688 /** 3689 * Whether the site is being previewed in the Customizer. 3690 * 3691 * @since 4.0.0 3692 * 3693 * @global WP_Customize_Manager $wp_customize Customizer instance. 3694 * 3695 * @return bool True if the site is being previewed in the Customizer, false otherwise. 3696 */ 3697 function is_customize_preview() { 3698 global $wp_customize; 3699 3700 return ( $wp_customize instanceof WP_Customize_Manager ) && $wp_customize->is_preview(); 3701 } 3702 3703 /** 3704 * Makes sure that auto-draft posts get their post_date bumped or status changed 3705 * to draft to prevent premature garbage-collection. 3706 * 3707 * When a changeset is updated but remains an auto-draft, ensure the post_date 3708 * for the auto-draft posts remains the same so that it will be 3709 * garbage-collected at the same time by `wp_delete_auto_drafts()`. Otherwise, 3710 * if the changeset is updated to be a draft then update the posts 3711 * to have a far-future post_date so that they will never be garbage collected 3712 * unless the changeset post itself is deleted. 3713 * 3714 * When a changeset is updated to be a persistent draft or to be scheduled for 3715 * publishing, then transition any dependent auto-drafts to a draft status so 3716 * that they likewise will not be garbage-collected but also so that they can 3717 * be edited in the admin before publishing since there is not yet a post/page 3718 * editing flow in the Customizer. See #39752. 3719 * 3720 * @link https://core.trac.wordpress.org/ticket/39752 3721 * 3722 * @since 4.8.0 3723 * @access private 3724 * @see wp_delete_auto_drafts() 3725 * 3726 * @global wpdb $wpdb WordPress database abstraction object. 3727 * 3728 * @param string $new_status Transition to this post status. 3729 * @param string $old_status Previous post status. 3730 * @param \WP_Post $post Post data. 3731 */ 3732 function _wp_keep_alive_customize_changeset_dependent_auto_drafts( $new_status, $old_status, $post ) { 3733 global $wpdb; 3734 unset( $old_status ); 3735 3736 // Short-circuit if not a changeset or if the changeset was published. 3737 if ( 'customize_changeset' !== $post->post_type || 'publish' === $new_status ) { 3738 return; 3739 } 3740 3741 $data = json_decode( $post->post_content, true ); 3742 if ( empty( $data['nav_menus_created_posts']['value'] ) ) { 3743 return; 3744 } 3745 3746 /* 3747 * Actually, in lieu of keeping alive, trash any customization drafts here if the changeset itself is 3748 * getting trashed. This is needed because when a changeset transitions to a draft, then any of the 3749 * dependent auto-draft post/page stubs will also get transitioned to customization drafts which 3750 * are then visible in the WP Admin. We cannot wait for the deletion of the changeset in which 3751 * _wp_delete_customize_changeset_dependent_auto_drafts() will be called, since they need to be 3752 * trashed to remove from visibility immediately. 3753 */ 3754 if ( 'trash' === $new_status ) { 3755 foreach ( $data['nav_menus_created_posts']['value'] as $post_id ) { 3756 if ( ! empty( $post_id ) && 'draft' === get_post_status( $post_id ) ) { 3757 wp_trash_post( $post_id ); 3758 } 3759 } 3760 return; 3761 } 3762 3763 $post_args = array(); 3764 if ( 'auto-draft' === $new_status ) { 3765 /* 3766 * Keep the post date for the post matching the changeset 3767 * so that it will not be garbage-collected before the changeset. 3768 */ 3769 $post_args['post_date'] = $post->post_date; // Note wp_delete_auto_drafts() only looks at this date. 3770 } else { 3771 /* 3772 * Since the changeset no longer has an auto-draft (and it is not published) 3773 * it is now a persistent changeset, a long-lived draft, and so any 3774 * associated auto-draft posts should likewise transition into having a draft 3775 * status. These drafts will be treated differently than regular drafts in 3776 * that they will be tied to the given changeset. The publish meta box is 3777 * replaced with a notice about how the post is part of a set of customized changes 3778 * which will be published when the changeset is published. 3779 */ 3780 $post_args['post_status'] = 'draft'; 3781 } 3782 3783 foreach ( $data['nav_menus_created_posts']['value'] as $post_id ) { 3784 if ( empty( $post_id ) || 'auto-draft' !== get_post_status( $post_id ) ) { 3785 continue; 3786 } 3787 $wpdb->update( 3788 $wpdb->posts, 3789 $post_args, 3790 array( 'ID' => $post_id ) 3791 ); 3792 clean_post_cache( $post_id ); 3793 } 3794 } 3795 3796 /** 3797 * Creates the initial theme features when the 'setup_theme' action is fired. 3798 * 3799 * See {@see 'setup_theme'}. 3800 * 3801 * @since 5.5.0 3802 */ 3803 function create_initial_theme_features() { 3804 register_theme_feature( 3805 'align-wide', 3806 array( 3807 'description' => __( 'Whether theme opts in to wide alignment CSS class.' ), 3808 'show_in_rest' => true, 3809 ) 3810 ); 3811 register_theme_feature( 3812 'automatic-feed-links', 3813 array( 3814 'description' => __( 'Whether posts and comments RSS feed links are added to head.' ), 3815 'show_in_rest' => true, 3816 ) 3817 ); 3818 register_theme_feature( 3819 'custom-background', 3820 array( 3821 'description' => __( 'Custom background if defined by the theme.' ), 3822 'type' => 'object', 3823 'show_in_rest' => array( 3824 'schema' => array( 3825 'properties' => array( 3826 'default-image' => array( 3827 'type' => 'string', 3828 'format' => 'uri', 3829 ), 3830 'default-preset' => array( 3831 'type' => 'string', 3832 'enum' => array( 3833 'default', 3834 'fill', 3835 'fit', 3836 'repeat', 3837 'custom', 3838 ), 3839 ), 3840 'default-position-x' => array( 3841 'type' => 'string', 3842 'enum' => array( 3843 'left', 3844 'center', 3845 'right', 3846 ), 3847 ), 3848 'default-position-y' => array( 3849 'type' => 'string', 3850 'enum' => array( 3851 'left', 3852 'center', 3853 'right', 3854 ), 3855 ), 3856 'default-size' => array( 3857 'type' => 'string', 3858 'enum' => array( 3859 'auto', 3860 'contain', 3861 'cover', 3862 ), 3863 ), 3864 'default-repeat' => array( 3865 'type' => 'string', 3866 'enum' => array( 3867 'repeat-x', 3868 'repeat-y', 3869 'repeat', 3870 'no-repeat', 3871 ), 3872 ), 3873 'default-attachment' => array( 3874 'type' => 'string', 3875 'enum' => array( 3876 'scroll', 3877 'fixed', 3878 ), 3879 ), 3880 'default-color' => array( 3881 'type' => 'string', 3882 ), 3883 ), 3884 ), 3885 ), 3886 ) 3887 ); 3888 register_theme_feature( 3889 'custom-header', 3890 array( 3891 'description' => __( 'Custom header if defined by the theme.' ), 3892 'type' => 'object', 3893 'show_in_rest' => array( 3894 'schema' => array( 3895 'properties' => array( 3896 'default-image' => array( 3897 'type' => 'string', 3898 'format' => 'uri', 3899 ), 3900 'random-default' => array( 3901 'type' => 'boolean', 3902 ), 3903 'width' => array( 3904 'type' => 'integer', 3905 ), 3906 'height' => array( 3907 'type' => 'integer', 3908 ), 3909 'flex-height' => array( 3910 'type' => 'boolean', 3911 ), 3912 'flex-width' => array( 3913 'type' => 'boolean', 3914 ), 3915 'default-text-color' => array( 3916 'type' => 'string', 3917 ), 3918 'header-text' => array( 3919 'type' => 'boolean', 3920 ), 3921 'uploads' => array( 3922 'type' => 'boolean', 3923 ), 3924 'video' => array( 3925 'type' => 'boolean', 3926 ), 3927 ), 3928 ), 3929 ), 3930 ) 3931 ); 3932 register_theme_feature( 3933 'custom-logo', 3934 array( 3935 'type' => 'object', 3936 'description' => __( 'Custom logo if defined by the theme.' ), 3937 'show_in_rest' => array( 3938 'schema' => array( 3939 'properties' => array( 3940 'width' => array( 3941 'type' => 'integer', 3942 ), 3943 'height' => array( 3944 'type' => 'integer', 3945 ), 3946 'flex-width' => array( 3947 'type' => 'boolean', 3948 ), 3949 'flex-height' => array( 3950 'type' => 'boolean', 3951 ), 3952 'header-text' => array( 3953 'type' => 'array', 3954 'items' => array( 3955 'type' => 'string', 3956 ), 3957 ), 3958 'unlink-homepage-logo' => array( 3959 'type' => 'boolean', 3960 ), 3961 ), 3962 ), 3963 ), 3964 ) 3965 ); 3966 register_theme_feature( 3967 'customize-selective-refresh-widgets', 3968 array( 3969 'description' => __( 'Whether the theme enables Selective Refresh for Widgets being managed with the Customizer.' ), 3970 'show_in_rest' => true, 3971 ) 3972 ); 3973 register_theme_feature( 3974 'dark-editor-style', 3975 array( 3976 'description' => __( 'Whether theme opts in to the dark editor style UI.' ), 3977 'show_in_rest' => true, 3978 ) 3979 ); 3980 register_theme_feature( 3981 'disable-custom-colors', 3982 array( 3983 'description' => __( 'Whether the theme disables custom colors.' ), 3984 'show_in_rest' => true, 3985 ) 3986 ); 3987 register_theme_feature( 3988 'disable-custom-font-sizes', 3989 array( 3990 'description' => __( 'Whether the theme disables custom font sizes.' ), 3991 'show_in_rest' => true, 3992 ) 3993 ); 3994 register_theme_feature( 3995 'disable-custom-gradients', 3996 array( 3997 'description' => __( 'Whether the theme disables custom gradients.' ), 3998 'show_in_rest' => true, 3999 ) 4000 ); 4001 register_theme_feature( 4002 'editor-color-palette', 4003 array( 4004 'type' => 'array', 4005 'description' => __( 'Custom color palette if defined by the theme.' ), 4006 'show_in_rest' => array( 4007 'schema' => array( 4008 'items' => array( 4009 'type' => 'object', 4010 'properties' => array( 4011 'name' => array( 4012 'type' => 'string', 4013 ), 4014 'slug' => array( 4015 'type' => 'string', 4016 ), 4017 'color' => array( 4018 'type' => 'string', 4019 ), 4020 ), 4021 ), 4022 ), 4023 ), 4024 ) 4025 ); 4026 register_theme_feature( 4027 'editor-font-sizes', 4028 array( 4029 'type' => 'array', 4030 'description' => __( 'Custom font sizes if defined by the theme.' ), 4031 'show_in_rest' => array( 4032 'schema' => array( 4033 'items' => array( 4034 'type' => 'object', 4035 'properties' => array( 4036 'name' => array( 4037 'type' => 'string', 4038 ), 4039 'size' => array( 4040 'type' => 'number', 4041 ), 4042 'slug' => array( 4043 'type' => 'string', 4044 ), 4045 ), 4046 ), 4047 ), 4048 ), 4049 ) 4050 ); 4051 register_theme_feature( 4052 'editor-gradient-presets', 4053 array( 4054 'type' => 'array', 4055 'description' => __( 'Custom gradient presets if defined by the theme.' ), 4056 'show_in_rest' => array( 4057 'schema' => array( 4058 'items' => array( 4059 'type' => 'object', 4060 'properties' => array( 4061 'name' => array( 4062 'type' => 'string', 4063 ), 4064 'gradient' => array( 4065 'type' => 'string', 4066 ), 4067 'slug' => array( 4068 'type' => 'string', 4069 ), 4070 ), 4071 ), 4072 ), 4073 ), 4074 ) 4075 ); 4076 register_theme_feature( 4077 'editor-styles', 4078 array( 4079 'description' => __( 'Whether theme opts in to the editor styles CSS wrapper.' ), 4080 'show_in_rest' => true, 4081 ) 4082 ); 4083 register_theme_feature( 4084 'html5', 4085 array( 4086 'type' => 'array', 4087 'description' => __( 'Allows use of HTML5 markup for search forms, comment forms, comment lists, gallery, and caption.' ), 4088 'show_in_rest' => array( 4089 'schema' => array( 4090 'items' => array( 4091 'type' => 'string', 4092 'enum' => array( 4093 'search-form', 4094 'comment-form', 4095 'comment-list', 4096 'gallery', 4097 'caption', 4098 'script', 4099 'style', 4100 ), 4101 ), 4102 ), 4103 ), 4104 ) 4105 ); 4106 register_theme_feature( 4107 'post-formats', 4108 array( 4109 'type' => 'array', 4110 'description' => __( 'Post formats supported.' ), 4111 'show_in_rest' => array( 4112 'name' => 'formats', 4113 'schema' => array( 4114 'items' => array( 4115 'type' => 'string', 4116 'enum' => get_post_format_slugs(), 4117 ), 4118 'default' => array( 'standard' ), 4119 ), 4120 'prepare_callback' => static function ( $formats ) { 4121 $formats = is_array( $formats ) ? array_values( $formats[0] ) : array(); 4122 $formats = array_merge( array( 'standard' ), $formats ); 4123 4124 return $formats; 4125 }, 4126 ), 4127 ) 4128 ); 4129 register_theme_feature( 4130 'post-thumbnails', 4131 array( 4132 'type' => 'array', 4133 'description' => __( 'The post types that support thumbnails or true if all post types are supported.' ), 4134 'show_in_rest' => array( 4135 'type' => array( 'boolean', 'array' ), 4136 'schema' => array( 4137 'items' => array( 4138 'type' => 'string', 4139 ), 4140 ), 4141 ), 4142 ) 4143 ); 4144 register_theme_feature( 4145 'responsive-embeds', 4146 array( 4147 'description' => __( 'Whether the theme supports responsive embedded content.' ), 4148 'show_in_rest' => true, 4149 ) 4150 ); 4151 register_theme_feature( 4152 'title-tag', 4153 array( 4154 'description' => __( 'Whether the theme can manage the document title tag.' ), 4155 'show_in_rest' => true, 4156 ) 4157 ); 4158 register_theme_feature( 4159 'wp-block-styles', 4160 array( 4161 'description' => __( 'Whether theme opts in to default WordPress block styles for viewing.' ), 4162 'show_in_rest' => true, 4163 ) 4164 ); 4165 } 4166 4167 /** 4168 * Returns whether the active theme is a block-based theme or not. 4169 * 4170 * @since 5.9.0 4171 * 4172 * @return boolean Whether the active theme is a block-based theme or not. 4173 */ 4174 function wp_is_block_theme() { 4175 return wp_get_theme()->is_block_theme(); 4176 } 4177 4178 /** 4179 * Adds default theme supports for block themes when the 'setup_theme' action fires. 4180 * 4181 * See {@see 'setup_theme'}. 4182 * 4183 * @since 5.9.0 4184 * @access private 4185 */ 4186 function _add_default_theme_supports() { 4187 if ( ! wp_is_block_theme() ) { 4188 return; 4189 } 4190 4191 add_theme_support( 'post-thumbnails' ); 4192 add_theme_support( 'responsive-embeds' ); 4193 add_theme_support( 'editor-styles' ); 4194 /* 4195 * Makes block themes support HTML5 by default for the comment block and search form 4196 * (which use default template functions) and `[caption]` and `[gallery]` shortcodes. 4197 * Other blocks contain their own HTML5 markup. 4198 */ 4199 add_theme_support( 'html5', array( 'comment-form', 'comment-list', 'search-form', 'gallery', 'caption', 'style', 'script' ) ); 4200 add_theme_support( 'automatic-feed-links' ); 4201 4202 add_filter( 'should_load_separate_core_block_assets', '__return_true' ); 4203 }
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