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/wp-content/themes/twentytwenty/classes/ -> class-twentytwenty-non-latin-languages.php (source)

   1  <?php
   2  /**
   3   * Non-latin language handling.
   4   *
   5   * Handle non-latin language styles.
   6   *
   7   * @package WordPress
   8   * @subpackage Twenty_Twenty
   9   * @since Twenty Twenty 1.0
  10   */
  11  
  12  if ( ! class_exists( 'TwentyTwenty_Non_Latin_Languages' ) ) {
  13      /**
  14       * Language handling.
  15       */
  16      class TwentyTwenty_Non_Latin_Languages {
  17  
  18          /**
  19           * Get custom CSS.
  20           *
  21           * Return CSS for non-latin language, if available, or null
  22           *
  23           * @param string $type Whether to return CSS for the "front-end", "block-editor" or "classic-editor".
  24           * @return void
  25           */
  26  		public static function get_non_latin_css( $type = 'front-end' ) {
  27  
  28              // Fetch site locale.
  29              $locale = get_bloginfo( 'language' );
  30  
  31              // Define fallback fonts for non-latin languages.
  32              $font_family = apply_filters(
  33                  'twentytwenty_get_localized_font_family_types',
  34                  array(
  35  
  36                      // Arabic.
  37                      'ar'    => array( 'Tahoma', 'Arial', 'sans-serif' ),
  38                      'ary'   => array( 'Tahoma', 'Arial', 'sans-serif' ),
  39                      'azb'   => array( 'Tahoma', 'Arial', 'sans-serif' ),
  40                      'ckb'   => array( 'Tahoma', 'Arial', 'sans-serif' ),
  41                      'fa-IR' => array( 'Tahoma', 'Arial', 'sans-serif' ),
  42                      'haz'   => array( 'Tahoma', 'Arial', 'sans-serif' ),
  43                      'ps'    => array( 'Tahoma', 'Arial', 'sans-serif' ),
  44  
  45                      // Chinese Simplified (China) - Noto Sans SC.
  46                      'zh-CN' => array( '\'PingFang SC\'', '\'Helvetica Neue\'', '\'Microsoft YaHei New\'', '\'STHeiti Light\'', 'sans-serif' ),
  47  
  48                      // Chinese Traditional (Taiwan) - Noto Sans TC.
  49                      'zh-TW' => array( '\'PingFang TC\'', '\'Helvetica Neue\'', '\'Microsoft YaHei New\'', '\'STHeiti Light\'', 'sans-serif' ),
  50  
  51                      // Chinese (Hong Kong) - Noto Sans HK.
  52                      'zh-HK' => array( '\'PingFang HK\'', '\'Helvetica Neue\'', '\'Microsoft YaHei New\'', '\'STHeiti Light\'', 'sans-serif' ),
  53  
  54                      // Cyrillic.
  55                      'bel'   => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
  56                      'bg-BG' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
  57                      'kk'    => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
  58                      'mk-MK' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
  59                      'mn'    => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
  60                      'ru-RU' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
  61                      'sah'   => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
  62                      'sr-RS' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
  63                      'tt-RU' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
  64                      'uk'    => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
  65  
  66                      // Devanagari.
  67                      'bn-BD' => array( 'Arial', 'sans-serif' ),
  68                      'hi-IN' => array( 'Arial', 'sans-serif' ),
  69                      'mr'    => array( 'Arial', 'sans-serif' ),
  70                      'ne-NP' => array( 'Arial', 'sans-serif' ),
  71  
  72                      // Greek.
  73                      'el'    => array( '\'Helvetica Neue\', Helvetica, Arial, sans-serif' ),
  74  
  75                      // Gujarati.
  76                      'gu'    => array( 'Arial', 'sans-serif' ),
  77  
  78                      // Hebrew.
  79                      'he-IL' => array( '\'Arial Hebrew\'', 'Arial', 'sans-serif' ),
  80  
  81                      // Japanese.
  82                      'ja'    => array( 'sans-serif' ),
  83  
  84                      // Korean.
  85                      'ko-KR' => array( '\'Apple SD Gothic Neo\'', '\'Malgun Gothic\'', '\'Nanum Gothic\'', 'Dotum', 'sans-serif' ),
  86  
  87                      // Thai.
  88                      'th'    => array( '\'Sukhumvit Set\'', '\'Helvetica Neue\'', 'Helvetica', 'Arial', 'sans-serif' ),
  89  
  90                      // Vietnamese.
  91                      'vi'    => array( '\'Libre Franklin\'', 'sans-serif' ),
  92  
  93                  )
  94              );
  95  
  96              // Return if the selected language has no fallback fonts.
  97              if ( empty( $font_family[ $locale ] ) ) {
  98                  return;
  99              }
 100  
 101              // Define elements to apply fallback fonts to.
 102              $elements = apply_filters(
 103                  'twentytwenty_get_localized_font_family_elements',
 104                  array(
 105                      'front-end'      => array( 'body', 'input', 'textarea', 'button', '.button', '.faux-button', '.wp-block-button__link', '.wp-block-file__button', '.has-drop-cap:not(:focus)::first-letter', '.has-drop-cap:not(:focus)::first-letter', '.entry-content .wp-block-archives', '.entry-content .wp-block-categories', '.entry-content .wp-block-cover-image', '.entry-content .wp-block-latest-comments', '.entry-content .wp-block-latest-posts', '.entry-content .wp-block-pullquote', '.entry-content .wp-block-quote.is-large', '.entry-content .wp-block-quote.is-style-large', '.entry-content .wp-block-archives *', '.entry-content .wp-block-categories *', '.entry-content .wp-block-latest-posts *', '.entry-content .wp-block-latest-comments *', '.entry-content p', '.entry-content ol', '.entry-content ul', '.entry-content dl', '.entry-content dt', '.entry-content cite', '.entry-content figcaption', '.entry-content .wp-caption-text', '.comment-content p', '.comment-content ol', '.comment-content ul', '.comment-content dl', '.comment-content dt', '.comment-content cite', '.comment-content figcaption', '.comment-content .wp-caption-text', '.widget_text p', '.widget_text ol', '.widget_text ul', '.widget_text dl', '.widget_text dt', '.widget-content .rssSummary', '.widget-content cite', '.widget-content figcaption', '.widget-content .wp-caption-text' ),
 106                      'block-editor'   => array( '.editor-styles-wrapper > *', '.editor-styles-wrapper p', '.editor-styles-wrapper ol', '.editor-styles-wrapper ul', '.editor-styles-wrapper dl', '.editor-styles-wrapper dt', '.editor-post-title__block .editor-post-title__input', '.editor-styles-wrapper .wp-block h1', '.editor-styles-wrapper .wp-block h2', '.editor-styles-wrapper .wp-block h3', '.editor-styles-wrapper .wp-block h4', '.editor-styles-wrapper .wp-block h5', '.editor-styles-wrapper .wp-block h6', '.editor-styles-wrapper .has-drop-cap:not(:focus)::first-letter', '.editor-styles-wrapper cite', '.editor-styles-wrapper figcaption', '.editor-styles-wrapper .wp-caption-text' ),
 107                      'classic-editor' => array( 'body#tinymce.wp-editor', 'body#tinymce.wp-editor p', 'body#tinymce.wp-editor ol', 'body#tinymce.wp-editor ul', 'body#tinymce.wp-editor dl', 'body#tinymce.wp-editor dt', 'body#tinymce.wp-editor figcaption', 'body#tinymce.wp-editor .wp-caption-text', 'body#tinymce.wp-editor .wp-caption-dd', 'body#tinymce.wp-editor cite', 'body#tinymce.wp-editor table' ),
 108                  )
 109              );
 110  
 111              // Return if the specified type doesn't exist.
 112              if ( empty( $elements[ $type ] ) ) {
 113                  return;
 114              }
 115  
 116              // Return the specified styles.
 117              return twentytwenty_generate_css( implode( ',', $elements[ $type ] ), 'font-family', implode( ',', $font_family[ $locale ] ), null, null, false );
 118  
 119          }
 120      }
 121  }


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