[Summary view] [Print] [Text view]

   1  <?php
   2  /**
   3   * Twenty Twenty functions and definitions
   4   *
   5   * @link https://developer.wordpress.org/themes/basics/theme-functions/
   6   *
   7   * @package WordPress
   8   * @subpackage Twenty_Twenty
   9   * @since Twenty Twenty 1.0
  10   */
  11  
  12  /**
  13   * Table of Contents:
  14   * Theme Support
  15   * Required Files
  16   * Register Styles
  17   * Register Scripts
  18   * Register Menus
  19   * Custom Logo
  20   * WP Body Open
  21   * Register Sidebars
  22   * Enqueue Block Editor Assets
  23   * Enqueue Classic Editor Styles
  24   * Block Editor Settings
  25   */
  26  
  27  /**
  28   * Sets up theme defaults and registers support for various WordPress features.
  29   *
  30   * Note that this function is hooked into the after_setup_theme hook, which
  31   * runs before the init hook. The init hook is too late for some features, such
  32   * as indicating support for post thumbnails.
  33   *
  34   * @since Twenty Twenty 1.0
  35   */
  36  function twentytwenty_theme_support() {
  37  
  38      // Add default posts and comments RSS feed links to head.
  39      add_theme_support( 'automatic-feed-links' );
  40  
  41      // Custom background color.
  42      add_theme_support(
  43          'custom-background',
  44          array(
  45              'default-color' => 'f5efe0',
  46          )
  47      );
  48  
  49      // Set content-width.
  50      global $content_width;
  51      if ( ! isset( $content_width ) ) {
  52          $content_width = 580;
  53      }
  54  
  55      /*
  56       * Enable support for Post Thumbnails on posts and pages.
  57       *
  58       * @link https://developer.wordpress.org/themes/functionality/featured-images-post-thumbnails/
  59       */
  60      add_theme_support( 'post-thumbnails' );
  61  
  62      // Set post thumbnail size.
  63      set_post_thumbnail_size( 1200, 9999 );
  64  
  65      // Add custom image size used in Cover Template.
  66      add_image_size( 'twentytwenty-fullscreen', 1980, 9999 );
  67  
  68      // Custom logo.
  69      $logo_width  = 120;
  70      $logo_height = 90;
  71  
  72      // If the retina setting is active, double the recommended width and height.
  73      if ( get_theme_mod( 'retina_logo', false ) ) {
  74          $logo_width  = floor( $logo_width * 2 );
  75          $logo_height = floor( $logo_height * 2 );
  76      }
  77  
  78      add_theme_support(
  79          'custom-logo',
  80          array(
  81              'height'      => $logo_height,
  82              'width'       => $logo_width,
  83              'flex-height' => true,
  84              'flex-width'  => true,
  85          )
  86      );
  87  
  88      /*
  89       * Let WordPress manage the document title.
  90       * By adding theme support, we declare that this theme does not use a
  91       * hard-coded <title> tag in the document head, and expect WordPress to
  92       * provide it for us.
  93       */
  94      add_theme_support( 'title-tag' );
  95  
  96      /*
  97       * Switch default core markup for search form, comment form, and comments
  98       * to output valid HTML5.
  99       */
 100      add_theme_support(
 101          'html5',
 102          array(
 103              'search-form',
 104              'comment-form',
 105              'comment-list',
 106              'gallery',
 107              'caption',
 108              'script',
 109              'style',
 110              'navigation-widgets',
 111          )
 112      );
 113  
 114      /*
 115       * Make theme available for translation.
 116       * Translations can be filed in the /languages/ directory.
 117       * If you're building a theme based on Twenty Twenty, use a find and replace
 118       * to change 'twentytwenty' to the name of your theme in all the template files.
 119       */
 120      load_theme_textdomain( 'twentytwenty' );
 121  
 122      // Add support for full and wide align images.
 123      add_theme_support( 'align-wide' );
 124  
 125      // Add support for responsive embeds.
 126      add_theme_support( 'responsive-embeds' );
 127  
 128      /*
 129       * Adds starter content to highlight the theme on fresh sites.
 130       * This is done conditionally to avoid loading the starter content on every
 131       * page load, as it is a one-off operation only needed once in the customizer.
 132       */
 133      if ( is_customize_preview() ) {
 134          require get_template_directory() . '/inc/starter-content.php';
 135          add_theme_support( 'starter-content', twentytwenty_get_starter_content() );
 136      }
 137  
 138      // Add theme support for selective refresh for widgets.
 139      add_theme_support( 'customize-selective-refresh-widgets' );
 140  
 141      /*
 142       * Adds `async` and `defer` support for scripts registered or enqueued
 143       * by the theme.
 144       */
 145      $loader = new TwentyTwenty_Script_Loader();
 146      add_filter( 'script_loader_tag', array( $loader, 'filter_script_loader_tag' ), 10, 2 );
 147  
 148  }
 149  
 150  add_action( 'after_setup_theme', 'twentytwenty_theme_support' );
 151  
 152  /**
 153   * REQUIRED FILES
 154   * Include required files.
 155   */
 156  require get_template_directory() . '/inc/template-tags.php';
 157  
 158  // Handle SVG icons.
 159  require get_template_directory() . '/classes/class-twentytwenty-svg-icons.php';
 160  require get_template_directory() . '/inc/svg-icons.php';
 161  
 162  // Handle Customizer settings.
 163  require get_template_directory() . '/classes/class-twentytwenty-customize.php';
 164  
 165  // Require Separator Control class.
 166  require get_template_directory() . '/classes/class-twentytwenty-separator-control.php';
 167  
 168  // Custom comment walker.
 169  require get_template_directory() . '/classes/class-twentytwenty-walker-comment.php';
 170  
 171  // Custom page walker.
 172  require get_template_directory() . '/classes/class-twentytwenty-walker-page.php';
 173  
 174  // Custom script loader class.
 175  require get_template_directory() . '/classes/class-twentytwenty-script-loader.php';
 176  
 177  // Non-latin language handling.
 178  require get_template_directory() . '/classes/class-twentytwenty-non-latin-languages.php';
 179  
 180  // Custom CSS.
 181  require get_template_directory() . '/inc/custom-css.php';
 182  
 183  // Block Patterns.
 184  require get_template_directory() . '/inc/block-patterns.php';
 185  
 186  /**
 187   * Register and Enqueue Styles.
 188   *
 189   * @since Twenty Twenty 1.0
 190   */
 191  function twentytwenty_register_styles() {
 192  
 193      $theme_version = wp_get_theme()->get( 'Version' );
 194  
 195      wp_enqueue_style( 'twentytwenty-style', get_stylesheet_uri(), array(), $theme_version );
 196      wp_style_add_data( 'twentytwenty-style', 'rtl', 'replace' );
 197  
 198      // Add output of Customizer settings as inline style.
 199      wp_add_inline_style( 'twentytwenty-style', twentytwenty_get_customizer_css( 'front-end' ) );
 200  
 201      // Add print CSS.
 202      wp_enqueue_style( 'twentytwenty-print-style', get_template_directory_uri() . '/print.css', null, $theme_version, 'print' );
 203  
 204  }
 205  
 206  add_action( 'wp_enqueue_scripts', 'twentytwenty_register_styles' );
 207  
 208  /**
 209   * Register and Enqueue Scripts.
 210   *
 211   * @since Twenty Twenty 1.0
 212   */
 213  function twentytwenty_register_scripts() {
 214  
 215      $theme_version = wp_get_theme()->get( 'Version' );
 216  
 217      if ( ( ! is_admin() ) && is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
 218          wp_enqueue_script( 'comment-reply' );
 219      }
 220  
 221      wp_enqueue_script( 'twentytwenty-js', get_template_directory_uri() . '/assets/js/index.js', array(), $theme_version, false );
 222      wp_script_add_data( 'twentytwenty-js', 'async', true );
 223  
 224  }
 225  
 226  add_action( 'wp_enqueue_scripts', 'twentytwenty_register_scripts' );
 227  
 228  /**
 229   * Fix skip link focus in IE11.
 230   *
 231   * This does not enqueue the script because it is tiny and because it is only for IE11,
 232   * thus it does not warrant having an entire dedicated blocking script being loaded.
 233   *
 234   * @since Twenty Twenty 1.0
 235   *
 236   * @link https://git.io/vWdr2
 237   */
 238  function twentytwenty_skip_link_focus_fix() {
 239      // The following is minified via `terser --compress --mangle -- assets/js/skip-link-focus-fix.js`.
 240      ?>
 241      <script>
 242      /(trident|msie)/i.test(navigator.userAgent)&&document.getElementById&&window.addEventListener&&window.addEventListener("hashchange",function(){var t,e=location.hash.substring(1);/^[A-z0-9_-]+$/.test(e)&&(t=document.getElementById(e))&&(/^(?:a|select|input|button|textarea)$/i.test(t.tagName)||(t.tabIndex=-1),t.focus())},!1);
 243      </script>
 244      <?php
 245  }
 246  add_action( 'wp_print_footer_scripts', 'twentytwenty_skip_link_focus_fix' );
 247  
 248  /**
 249   * Enqueue non-latin language styles.
 250   *
 251   * @since Twenty Twenty 1.0
 252   *
 253   * @return void
 254   */
 255  function twentytwenty_non_latin_languages() {
 256      $custom_css = TwentyTwenty_Non_Latin_Languages::get_non_latin_css( 'front-end' );
 257  
 258      if ( $custom_css ) {
 259          wp_add_inline_style( 'twentytwenty-style', $custom_css );
 260      }
 261  }
 262  
 263  add_action( 'wp_enqueue_scripts', 'twentytwenty_non_latin_languages' );
 264  
 265  /**
 266   * Register navigation menus uses wp_nav_menu in five places.
 267   *
 268   * @since Twenty Twenty 1.0
 269   */
 270  function twentytwenty_menus() {
 271  
 272      $locations = array(
 273          'primary'  => __( 'Desktop Horizontal Menu', 'twentytwenty' ),
 274          'expanded' => __( 'Desktop Expanded Menu', 'twentytwenty' ),
 275          'mobile'   => __( 'Mobile Menu', 'twentytwenty' ),
 276          'footer'   => __( 'Footer Menu', 'twentytwenty' ),
 277          'social'   => __( 'Social Menu', 'twentytwenty' ),
 278      );
 279  
 280      register_nav_menus( $locations );
 281  }
 282  
 283  add_action( 'init', 'twentytwenty_menus' );
 284  
 285  /**
 286   * Get the information about the logo.
 287   *
 288   * @since Twenty Twenty 1.0
 289   *
 290   * @param string $html The HTML output from get_custom_logo (core function).
 291   * @return string
 292   */
 293  function twentytwenty_get_custom_logo( $html ) {
 294  
 295      $logo_id = get_theme_mod( 'custom_logo' );
 296  
 297      if ( ! $logo_id ) {
 298          return $html;
 299      }
 300  
 301      $logo = wp_get_attachment_image_src( $logo_id, 'full' );
 302  
 303      if ( $logo ) {
 304          // For clarity.
 305          $logo_width  = esc_attr( $logo[1] );
 306          $logo_height = esc_attr( $logo[2] );
 307  
 308          // If the retina logo setting is active, reduce the width/height by half.
 309          if ( get_theme_mod( 'retina_logo', false ) ) {
 310              $logo_width  = floor( $logo_width / 2 );
 311              $logo_height = floor( $logo_height / 2 );
 312  
 313              $search = array(
 314                  '/width=\"\d+\"/iU',
 315                  '/height=\"\d+\"/iU',
 316              );
 317  
 318              $replace = array(
 319                  "width=\"{$logo_width}\"",
 320                  "height=\"{$logo_height}\"",
 321              );
 322  
 323              // Add a style attribute with the height, or append the height to the style attribute if the style attribute already exists.
 324              if ( strpos( $html, ' style=' ) === false ) {
 325                  $search[]  = '/(src=)/';
 326                  $replace[] = "style=\"height: {$logo_height}px;\" src=";
 327              } else {
 328                  $search[]  = '/(style="[^"]*)/';
 329                  $replace[] = "$1 height: {$logo_height}px;";
 330              }
 331  
 332              $html = preg_replace( $search, $replace, $html );
 333  
 334          }
 335      }
 336  
 337      return $html;
 338  
 339  }
 340  
 341  add_filter( 'get_custom_logo', 'twentytwenty_get_custom_logo' );
 342  
 343  if ( ! function_exists( 'wp_body_open' ) ) {
 344  
 345      /**
 346       * Shim for wp_body_open, ensuring backward compatibility with versions of WordPress older than 5.2.
 347       *
 348       * @since Twenty Twenty 1.0
 349       */
 350  	function wp_body_open() {
 351          /** This action is documented in wp-includes/general-template.php */
 352          do_action( 'wp_body_open' );
 353      }
 354  }
 355  
 356  /**
 357   * Include a skip to content link at the top of the page so that users can bypass the menu.
 358   *
 359   * @since Twenty Twenty 1.0
 360   */
 361  function twentytwenty_skip_link() {
 362      echo '<a class="skip-link screen-reader-text" href="#site-content">' . __( 'Skip to the content', 'twentytwenty' ) . '</a>';
 363  }
 364  
 365  add_action( 'wp_body_open', 'twentytwenty_skip_link', 5 );
 366  
 367  /**
 368   * Register widget areas.
 369   *
 370   * @since Twenty Twenty 1.0
 371   *
 372   * @link https://developer.wordpress.org/themes/functionality/sidebars/#registering-a-sidebar
 373   */
 374  function twentytwenty_sidebar_registration() {
 375  
 376      // Arguments used in all register_sidebar() calls.
 377      $shared_args = array(
 378          'before_title'  => '<h2 class="widget-title subheading heading-size-3">',
 379          'after_title'   => '</h2>',
 380          'before_widget' => '<div class="widget %2$s"><div class="widget-content">',
 381          'after_widget'  => '</div></div>',
 382      );
 383  
 384      // Footer #1.
 385      register_sidebar(
 386          array_merge(
 387              $shared_args,
 388              array(
 389                  'name'        => __( 'Footer #1', 'twentytwenty' ),
 390                  'id'          => 'sidebar-1',
 391                  'description' => __( 'Widgets in this area will be displayed in the first column in the footer.', 'twentytwenty' ),
 392              )
 393          )
 394      );
 395  
 396      // Footer #2.
 397      register_sidebar(
 398          array_merge(
 399              $shared_args,
 400              array(
 401                  'name'        => __( 'Footer #2', 'twentytwenty' ),
 402                  'id'          => 'sidebar-2',
 403                  'description' => __( 'Widgets in this area will be displayed in the second column in the footer.', 'twentytwenty' ),
 404              )
 405          )
 406      );
 407  
 408  }
 409  
 410  add_action( 'widgets_init', 'twentytwenty_sidebar_registration' );
 411  
 412  /**
 413   * Enqueue supplemental block editor styles.
 414   *
 415   * @since Twenty Twenty 1.0
 416   */
 417  function twentytwenty_block_editor_styles() {
 418  
 419      // Enqueue the editor styles.
 420      wp_enqueue_style( 'twentytwenty-block-editor-styles', get_theme_file_uri( '/assets/css/editor-style-block.css' ), array(), wp_get_theme()->get( 'Version' ), 'all' );
 421      wp_style_add_data( 'twentytwenty-block-editor-styles', 'rtl', 'replace' );
 422  
 423      // Add inline style from the Customizer.
 424      wp_add_inline_style( 'twentytwenty-block-editor-styles', twentytwenty_get_customizer_css( 'block-editor' ) );
 425  
 426      // Add inline style for non-latin fonts.
 427      wp_add_inline_style( 'twentytwenty-block-editor-styles', TwentyTwenty_Non_Latin_Languages::get_non_latin_css( 'block-editor' ) );
 428  
 429      // Enqueue the editor script.
 430      wp_enqueue_script( 'twentytwenty-block-editor-script', get_theme_file_uri( '/assets/js/editor-script-block.js' ), array( 'wp-blocks', 'wp-dom' ), wp_get_theme()->get( 'Version' ), true );
 431  }
 432  
 433  add_action( 'enqueue_block_editor_assets', 'twentytwenty_block_editor_styles', 1, 1 );
 434  
 435  /**
 436   * Enqueue classic editor styles.
 437   *
 438   * @since Twenty Twenty 1.0
 439   */
 440  function twentytwenty_classic_editor_styles() {
 441  
 442      $classic_editor_styles = array(
 443          '/assets/css/editor-style-classic.css',
 444      );
 445  
 446      add_editor_style( $classic_editor_styles );
 447  
 448  }
 449  
 450  add_action( 'init', 'twentytwenty_classic_editor_styles' );
 451  
 452  /**
 453   * Output Customizer settings in the classic editor.
 454   * Adds styles to the head of the TinyMCE iframe. Kudos to @Otto42 for the original solution.
 455   *
 456   * @since Twenty Twenty 1.0
 457   *
 458   * @param array $mce_init TinyMCE styles.
 459   * @return array TinyMCE styles.
 460   */
 461  function twentytwenty_add_classic_editor_customizer_styles( $mce_init ) {
 462  
 463      $styles = twentytwenty_get_customizer_css( 'classic-editor' );
 464  
 465      if ( ! isset( $mce_init['content_style'] ) ) {
 466          $mce_init['content_style'] = $styles . ' ';
 467      } else {
 468          $mce_init['content_style'] .= ' ' . $styles . ' ';
 469      }
 470  
 471      return $mce_init;
 472  
 473  }
 474  
 475  add_filter( 'tiny_mce_before_init', 'twentytwenty_add_classic_editor_customizer_styles' );
 476  
 477  /**
 478   * Output non-latin font styles in the classic editor.
 479   * Adds styles to the head of the TinyMCE iframe. Kudos to @Otto42 for the original solution.
 480   *
 481   * @param array $mce_init TinyMCE styles.
 482   * @return array TinyMCE styles.
 483   */
 484  function twentytwenty_add_classic_editor_non_latin_styles( $mce_init ) {
 485  
 486      $styles = TwentyTwenty_Non_Latin_Languages::get_non_latin_css( 'classic-editor' );
 487  
 488      // Return if there are no styles to add.
 489      if ( ! $styles ) {
 490          return $mce_init;
 491      }
 492  
 493      if ( ! isset( $mce_init['content_style'] ) ) {
 494          $mce_init['content_style'] = $styles . ' ';
 495      } else {
 496          $mce_init['content_style'] .= ' ' . $styles . ' ';
 497      }
 498  
 499      return $mce_init;
 500  
 501  }
 502  
 503  add_filter( 'tiny_mce_before_init', 'twentytwenty_add_classic_editor_non_latin_styles' );
 504  
 505  /**
 506   * Block Editor Settings.
 507   * Add custom colors and font sizes to the block editor.
 508   *
 509   * @since Twenty Twenty 1.0
 510   */
 511  function twentytwenty_block_editor_settings() {
 512  
 513      // Block Editor Palette.
 514      $editor_color_palette = array(
 515          array(
 516              'name'  => __( 'Accent Color', 'twentytwenty' ),
 517              'slug'  => 'accent',
 518              'color' => twentytwenty_get_color_for_area( 'content', 'accent' ),
 519          ),
 520          array(
 521              'name'  => _x( 'Primary', 'color', 'twentytwenty' ),
 522              'slug'  => 'primary',
 523              'color' => twentytwenty_get_color_for_area( 'content', 'text' ),
 524          ),
 525          array(
 526              'name'  => _x( 'Secondary', 'color', 'twentytwenty' ),
 527              'slug'  => 'secondary',
 528              'color' => twentytwenty_get_color_for_area( 'content', 'secondary' ),
 529          ),
 530          array(
 531              'name'  => __( 'Subtle Background', 'twentytwenty' ),
 532              'slug'  => 'subtle-background',
 533              'color' => twentytwenty_get_color_for_area( 'content', 'borders' ),
 534          ),
 535      );
 536  
 537      // Add the background option.
 538      $background_color = get_theme_mod( 'background_color' );
 539      if ( ! $background_color ) {
 540          $background_color_arr = get_theme_support( 'custom-background' );
 541          $background_color     = $background_color_arr[0]['default-color'];
 542      }
 543      $editor_color_palette[] = array(
 544          'name'  => __( 'Background Color', 'twentytwenty' ),
 545          'slug'  => 'background',
 546          'color' => '#' . $background_color,
 547      );
 548  
 549      // If we have accent colors, add them to the block editor palette.
 550      if ( $editor_color_palette ) {
 551          add_theme_support( 'editor-color-palette', $editor_color_palette );
 552      }
 553  
 554      // Block Editor Font Sizes.
 555      add_theme_support(
 556          'editor-font-sizes',
 557          array(
 558              array(
 559                  'name'      => _x( 'Small', 'Name of the small font size in the block editor', 'twentytwenty' ),
 560                  'shortName' => _x( 'S', 'Short name of the small font size in the block editor.', 'twentytwenty' ),
 561                  'size'      => 18,
 562                  'slug'      => 'small',
 563              ),
 564              array(
 565                  'name'      => _x( 'Regular', 'Name of the regular font size in the block editor', 'twentytwenty' ),
 566                  'shortName' => _x( 'M', 'Short name of the regular font size in the block editor.', 'twentytwenty' ),
 567                  'size'      => 21,
 568                  'slug'      => 'normal',
 569              ),
 570              array(
 571                  'name'      => _x( 'Large', 'Name of the large font size in the block editor', 'twentytwenty' ),
 572                  'shortName' => _x( 'L', 'Short name of the large font size in the block editor.', 'twentytwenty' ),
 573                  'size'      => 26.25,
 574                  'slug'      => 'large',
 575              ),
 576              array(
 577                  'name'      => _x( 'Larger', 'Name of the larger font size in the block editor', 'twentytwenty' ),
 578                  'shortName' => _x( 'XL', 'Short name of the larger font size in the block editor.', 'twentytwenty' ),
 579                  'size'      => 32,
 580                  'slug'      => 'larger',
 581              ),
 582          )
 583      );
 584  
 585      add_theme_support( 'editor-styles' );
 586  
 587      // If we have a dark background color then add support for dark editor style.
 588      // We can determine if the background color is dark by checking if the text-color is white.
 589      if ( '#ffffff' === strtolower( twentytwenty_get_color_for_area( 'content', 'text' ) ) ) {
 590          add_theme_support( 'dark-editor-style' );
 591      }
 592  
 593  }
 594  
 595  add_action( 'after_setup_theme', 'twentytwenty_block_editor_settings' );
 596  
 597  /**
 598   * Overwrite default more tag with styling and screen reader markup.
 599   *
 600   * @param string $html The default output HTML for the more tag.
 601   * @return string
 602   */
 603  function twentytwenty_read_more_tag( $html ) {
 604      return preg_replace( '/<a(.*)>(.*)<\/a>/iU', sprintf( '<div class="read-more-button-wrap"><a$1><span class="faux-button">$2</span> <span class="screen-reader-text">"%1$s"</span></a></div>', get_the_title( get_the_ID() ) ), $html );
 605  }
 606  
 607  add_filter( 'the_content_more_link', 'twentytwenty_read_more_tag' );
 608  
 609  /**
 610   * Enqueues scripts for customizer controls & settings.
 611   *
 612   * @since Twenty Twenty 1.0
 613   *
 614   * @return void
 615   */
 616  function twentytwenty_customize_controls_enqueue_scripts() {
 617      $theme_version = wp_get_theme()->get( 'Version' );
 618  
 619      // Add main customizer js file.
 620      wp_enqueue_script( 'twentytwenty-customize', get_template_directory_uri() . '/assets/js/customize.js', array( 'jquery' ), $theme_version, false );
 621  
 622      // Add script for color calculations.
 623      wp_enqueue_script( 'twentytwenty-color-calculations', get_template_directory_uri() . '/assets/js/color-calculations.js', array( 'wp-color-picker' ), $theme_version, false );
 624  
 625      // Add script for controls.
 626      wp_enqueue_script( 'twentytwenty-customize-controls', get_template_directory_uri() . '/assets/js/customize-controls.js', array( 'twentytwenty-color-calculations', 'customize-controls', 'underscore', 'jquery' ), $theme_version, false );
 627      wp_localize_script( 'twentytwenty-customize-controls', 'twentyTwentyBgColors', twentytwenty_get_customizer_color_vars() );
 628  }
 629  
 630  add_action( 'customize_controls_enqueue_scripts', 'twentytwenty_customize_controls_enqueue_scripts' );
 631  
 632  /**
 633   * Enqueue scripts for the customizer preview.
 634   *
 635   * @since Twenty Twenty 1.0
 636   *
 637   * @return void
 638   */
 639  function twentytwenty_customize_preview_init() {
 640      $theme_version = wp_get_theme()->get( 'Version' );
 641  
 642      wp_enqueue_script( 'twentytwenty-customize-preview', get_theme_file_uri( '/assets/js/customize-preview.js' ), array( 'customize-preview', 'customize-selective-refresh', 'jquery' ), $theme_version, true );
 643      wp_localize_script( 'twentytwenty-customize-preview', 'twentyTwentyBgColors', twentytwenty_get_customizer_color_vars() );
 644      wp_localize_script( 'twentytwenty-customize-preview', 'twentyTwentyPreviewEls', twentytwenty_get_elements_array() );
 645  
 646      wp_add_inline_script(
 647          'twentytwenty-customize-preview',
 648          sprintf(
 649              'wp.customize.selectiveRefresh.partialConstructor[ %1$s ].prototype.attrs = %2$s;',
 650              wp_json_encode( 'cover_opacity' ),
 651              wp_json_encode( twentytwenty_customize_opacity_range() )
 652          )
 653      );
 654  }
 655  
 656  add_action( 'customize_preview_init', 'twentytwenty_customize_preview_init' );
 657  
 658  /**
 659   * Get accessible color for an area.
 660   *
 661   * @since Twenty Twenty 1.0
 662   *
 663   * @param string $area    The area we want to get the colors for.
 664   * @param string $context Can be 'text' or 'accent'.
 665   * @return string Returns a HEX color.
 666   */
 667  function twentytwenty_get_color_for_area( $area = 'content', $context = 'text' ) {
 668  
 669      // Get the value from the theme-mod.
 670      $settings = get_theme_mod(
 671          'accent_accessible_colors',
 672          array(
 673              'content'       => array(
 674                  'text'      => '#000000',
 675                  'accent'    => '#cd2653',
 676                  'secondary' => '#6d6d6d',
 677                  'borders'   => '#dcd7ca',
 678              ),
 679              'header-footer' => array(
 680                  'text'      => '#000000',
 681                  'accent'    => '#cd2653',
 682                  'secondary' => '#6d6d6d',
 683                  'borders'   => '#dcd7ca',
 684              ),
 685          )
 686      );
 687  
 688      // If we have a value return it.
 689      if ( isset( $settings[ $area ] ) && isset( $settings[ $area ][ $context ] ) ) {
 690          return $settings[ $area ][ $context ];
 691      }
 692  
 693      // Return false if the option doesn't exist.
 694      return false;
 695  }
 696  
 697  /**
 698   * Returns an array of variables for the customizer preview.
 699   *
 700   * @since Twenty Twenty 1.0
 701   *
 702   * @return array
 703   */
 704  function twentytwenty_get_customizer_color_vars() {
 705      $colors = array(
 706          'content'       => array(
 707              'setting' => 'background_color',
 708          ),
 709          'header-footer' => array(
 710              'setting' => 'header_footer_background_color',
 711          ),
 712      );
 713      return $colors;
 714  }
 715  
 716  /**
 717   * Get an array of elements.
 718   *
 719   * @since Twenty Twenty 1.0
 720   *
 721   * @return array
 722   */
 723  function twentytwenty_get_elements_array() {
 724  
 725      // The array is formatted like this:
 726      // [key-in-saved-setting][sub-key-in-setting][css-property] = [elements].
 727      $elements = array(
 728          'content'       => array(
 729              'accent'     => array(
 730                  'color'            => array( '.color-accent', '.color-accent-hover:hover', '.color-accent-hover:focus', ':root .has-accent-color', '.has-drop-cap:not(:focus):first-letter', '.wp-block-button.is-style-outline', 'a' ),
 731                  'border-color'     => array( 'blockquote', '.border-color-accent', '.border-color-accent-hover:hover', '.border-color-accent-hover:focus' ),
 732                  'background-color' => array( 'button', '.button', '.faux-button', '.wp-block-button__link', '.wp-block-file .wp-block-file__button', 'input[type="button"]', 'input[type="reset"]', 'input[type="submit"]', '.bg-accent', '.bg-accent-hover:hover', '.bg-accent-hover:focus', ':root .has-accent-background-color', '.comment-reply-link' ),
 733                  'fill'             => array( '.fill-children-accent', '.fill-children-accent *' ),
 734              ),
 735              'background' => array(
 736                  'color'            => array( ':root .has-background-color', 'button', '.button', '.faux-button', '.wp-block-button__link', '.wp-block-file__button', 'input[type="button"]', 'input[type="reset"]', 'input[type="submit"]', '.wp-block-button', '.comment-reply-link', '.has-background.has-primary-background-color:not(.has-text-color)', '.has-background.has-primary-background-color *:not(.has-text-color)', '.has-background.has-accent-background-color:not(.has-text-color)', '.has-background.has-accent-background-color *:not(.has-text-color)' ),
 737                  'background-color' => array( ':root .has-background-background-color' ),
 738              ),
 739              'text'       => array(
 740                  'color'            => array( 'body', '.entry-title a', ':root .has-primary-color' ),
 741                  'background-color' => array( ':root .has-primary-background-color' ),
 742              ),
 743              'secondary'  => array(
 744                  'color'            => array( 'cite', 'figcaption', '.wp-caption-text', '.post-meta', '.entry-content .wp-block-archives li', '.entry-content .wp-block-categories li', '.entry-content .wp-block-latest-posts li', '.wp-block-latest-comments__comment-date', '.wp-block-latest-posts__post-date', '.wp-block-embed figcaption', '.wp-block-image figcaption', '.wp-block-pullquote cite', '.comment-metadata', '.comment-respond .comment-notes', '.comment-respond .logged-in-as', '.pagination .dots', '.entry-content hr:not(.has-background)', 'hr.styled-separator', ':root .has-secondary-color' ),
 745                  'background-color' => array( ':root .has-secondary-background-color' ),
 746              ),
 747              'borders'    => array(
 748                  'border-color'        => array( 'pre', 'fieldset', 'input', 'textarea', 'table', 'table *', 'hr' ),
 749                  'background-color'    => array( 'caption', 'code', 'code', 'kbd', 'samp', '.wp-block-table.is-style-stripes tbody tr:nth-child(odd)', ':root .has-subtle-background-background-color' ),
 750                  'border-bottom-color' => array( '.wp-block-table.is-style-stripes' ),
 751                  'border-top-color'    => array( '.wp-block-latest-posts.is-grid li' ),
 752                  'color'               => array( ':root .has-subtle-background-color' ),
 753              ),
 754          ),
 755          'header-footer' => array(
 756              'accent'     => array(
 757                  'color'            => array( 'body:not(.overlay-header) .primary-menu > li > a', 'body:not(.overlay-header) .primary-menu > li > .icon', '.modal-menu a', '.footer-menu a, .footer-widgets a', '#site-footer .wp-block-button.is-style-outline', '.wp-block-pullquote:before', '.singular:not(.overlay-header) .entry-header a', '.archive-header a', '.header-footer-group .color-accent', '.header-footer-group .color-accent-hover:hover' ),
 758                  'background-color' => array( '.social-icons a', '#site-footer button:not(.toggle)', '#site-footer .button', '#site-footer .faux-button', '#site-footer .wp-block-button__link', '#site-footer .wp-block-file__button', '#site-footer input[type="button"]', '#site-footer input[type="reset"]', '#site-footer input[type="submit"]' ),
 759              ),
 760              'background' => array(
 761                  'color'            => array( '.social-icons a', 'body:not(.overlay-header) .primary-menu ul', '.header-footer-group button', '.header-footer-group .button', '.header-footer-group .faux-button', '.header-footer-group .wp-block-button:not(.is-style-outline) .wp-block-button__link', '.header-footer-group .wp-block-file__button', '.header-footer-group input[type="button"]', '.header-footer-group input[type="reset"]', '.header-footer-group input[type="submit"]' ),
 762                  'background-color' => array( '#site-header', '.footer-nav-widgets-wrapper', '#site-footer', '.menu-modal', '.menu-modal-inner', '.search-modal-inner', '.archive-header', '.singular .entry-header', '.singular .featured-media:before', '.wp-block-pullquote:before' ),
 763              ),
 764              'text'       => array(
 765                  'color'               => array( '.header-footer-group', 'body:not(.overlay-header) #site-header .toggle', '.menu-modal .toggle' ),
 766                  'background-color'    => array( 'body:not(.overlay-header) .primary-menu ul' ),
 767                  'border-bottom-color' => array( 'body:not(.overlay-header) .primary-menu > li > ul:after' ),
 768                  'border-left-color'   => array( 'body:not(.overlay-header) .primary-menu ul ul:after' ),
 769              ),
 770              'secondary'  => array(
 771                  'color' => array( '.site-description', 'body:not(.overlay-header) .toggle-inner .toggle-text', '.widget .post-date', '.widget .rss-date', '.widget_archive li', '.widget_categories li', '.widget cite', '.widget_pages li', '.widget_meta li', '.widget_nav_menu li', '.powered-by-wordpress', '.to-the-top', '.singular .entry-header .post-meta', '.singular:not(.overlay-header) .entry-header .post-meta a' ),
 772              ),
 773              'borders'    => array(
 774                  'border-color'     => array( '.header-footer-group pre', '.header-footer-group fieldset', '.header-footer-group input', '.header-footer-group textarea', '.header-footer-group table', '.header-footer-group table *', '.footer-nav-widgets-wrapper', '#site-footer', '.menu-modal nav *', '.footer-widgets-outer-wrapper', '.footer-top' ),
 775                  'background-color' => array( '.header-footer-group table caption', 'body:not(.overlay-header) .header-inner .toggle-wrapper::before' ),
 776              ),
 777          ),
 778      );
 779  
 780      /**
 781       * Filters Twenty Twenty theme elements.
 782       *
 783       * @since Twenty Twenty 1.0
 784       *
 785       * @param array Array of elements.
 786       */
 787      return apply_filters( 'twentytwenty_get_elements_array', $elements );
 788  }