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/wp-content/themes/twentysixteen/inc/ -> template-tags.php (source)

   1  <?php
   2  /**
   3   * Custom Twenty Sixteen template tags
   4   *
   5   * Eventually, some of the functionality here could be replaced by core features.
   6   *
   7   * @package WordPress
   8   * @subpackage Twenty_Sixteen
   9   * @since Twenty Sixteen 1.0
  10   */
  11  
  12  if ( ! function_exists( 'twentysixteen_entry_meta' ) ) :
  13      /**
  14       * Prints HTML with meta information for the categories, tags.
  15       *
  16       * Create your own twentysixteen_entry_meta() function to override in a child theme.
  17       *
  18       * @since Twenty Sixteen 1.0
  19       */
  20  	function twentysixteen_entry_meta() {
  21          if ( 'post' === get_post_type() ) {
  22              $author_avatar_size = apply_filters( 'twentysixteen_author_avatar_size', 49 );
  23              printf(
  24                  '<span class="byline"><span class="author vcard">%1$s<span class="screen-reader-text">%2$s </span> <a class="url fn n" href="%3$s">%4$s</a></span></span>',
  25                  get_avatar( get_the_author_meta( 'user_email' ), $author_avatar_size ),
  26                  /* translators: Hidden accessibility text. */
  27                  _x( 'Author', 'Used before post author name.', 'twentysixteen' ),
  28                  esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
  29                  get_the_author()
  30              );
  31          }
  32  
  33          if ( in_array( get_post_type(), array( 'post', 'attachment' ), true ) ) {
  34              twentysixteen_entry_date();
  35          }
  36  
  37          $format = get_post_format();
  38          if ( current_theme_supports( 'post-formats', $format ) ) {
  39              printf(
  40                  '<span class="entry-format">%1$s<a href="%2$s">%3$s</a></span>',
  41                  sprintf(
  42                      '<span class="screen-reader-text">%s </span>',
  43                      /* translators: Hidden accessibility text. */
  44                      _x( 'Format', 'Used before post format.', 'twentysixteen' )
  45                  ),
  46                  esc_url( get_post_format_link( $format ) ),
  47                  get_post_format_string( $format )
  48              );
  49          }
  50  
  51          if ( 'post' === get_post_type() ) {
  52              twentysixteen_entry_taxonomies();
  53          }
  54  
  55          if ( ! is_singular() && ! post_password_required() && ( comments_open() || get_comments_number() ) ) {
  56              echo '<span class="comments-link">';
  57              /* translators: %s: Post title. Only visible to screen readers. */
  58              comments_popup_link( sprintf( __( 'Leave a comment<span class="screen-reader-text"> on %s</span>', 'twentysixteen' ), get_the_title() ) );
  59              echo '</span>';
  60          }
  61      }
  62  endif;
  63  
  64  if ( ! function_exists( 'twentysixteen_entry_date' ) ) :
  65      /**
  66       * Prints HTML with date information for current post.
  67       *
  68       * Create your own twentysixteen_entry_date() function to override in a child theme.
  69       *
  70       * @since Twenty Sixteen 1.0
  71       */
  72  	function twentysixteen_entry_date() {
  73          $time_string = '<time class="entry-date published updated" datetime="%1$s">%2$s</time>';
  74  
  75          if ( get_the_time( 'U' ) !== get_the_modified_time( 'U' ) ) {
  76              $time_string = '<time class="entry-date published" datetime="%1$s">%2$s</time><time class="updated" datetime="%3$s">%4$s</time>';
  77          }
  78  
  79          $time_string = sprintf(
  80              $time_string,
  81              esc_attr( get_the_date( 'c' ) ),
  82              get_the_date(),
  83              esc_attr( get_the_modified_date( 'c' ) ),
  84              get_the_modified_date()
  85          );
  86  
  87          printf(
  88              '<span class="posted-on"><span class="screen-reader-text">%1$s </span><a href="%2$s" rel="bookmark">%3$s</a></span>',
  89              /* translators: Hidden accessibility text. */
  90              _x( 'Posted on', 'Used before publish date.', 'twentysixteen' ),
  91              esc_url( get_permalink() ),
  92              $time_string
  93          );
  94      }
  95  endif;
  96  
  97  if ( ! function_exists( 'twentysixteen_entry_taxonomies' ) ) :
  98      /**
  99       * Prints HTML with category and tags for current post.
 100       *
 101       * Create your own twentysixteen_entry_taxonomies() function to override in a child theme.
 102       *
 103       * @since Twenty Sixteen 1.0
 104       */
 105  	function twentysixteen_entry_taxonomies() {
 106          $categories_list = get_the_category_list( _x( ', ', 'Used between list items, there is a space after the comma.', 'twentysixteen' ) );
 107          if ( $categories_list && twentysixteen_categorized_blog() ) {
 108              printf(
 109                  '<span class="cat-links"><span class="screen-reader-text">%1$s </span>%2$s</span>',
 110                  /* translators: Hidden accessibility text. */
 111                  _x( 'Categories', 'Used before category names.', 'twentysixteen' ),
 112                  $categories_list
 113              );
 114          }
 115  
 116          $tags_list = get_the_tag_list( '', _x( ', ', 'Used between list items, there is a space after the comma.', 'twentysixteen' ) );
 117          if ( $tags_list && ! is_wp_error( $tags_list ) ) {
 118              printf(
 119                  '<span class="tags-links"><span class="screen-reader-text">%1$s </span>%2$s</span>',
 120                  /* translators: Hidden accessibility text. */
 121                  _x( 'Tags', 'Used before tag names.', 'twentysixteen' ),
 122                  $tags_list
 123              );
 124          }
 125      }
 126  endif;
 127  
 128  if ( ! function_exists( 'twentysixteen_post_thumbnail' ) ) :
 129      /**
 130       * Displays an optional post thumbnail.
 131       *
 132       * Wraps the post thumbnail in an anchor element on index views, or a div
 133       * element when on single views.
 134       *
 135       * Create your own twentysixteen_post_thumbnail() function to override in a child theme.
 136       *
 137       * @since Twenty Sixteen 1.0
 138       */
 139  	function twentysixteen_post_thumbnail() {
 140          if ( post_password_required() || is_attachment() || ! has_post_thumbnail() ) {
 141              return;
 142          }
 143  
 144          if ( is_singular() ) :
 145              ?>
 146  
 147          <div class="post-thumbnail">
 148              <?php the_post_thumbnail(); ?>
 149      </div><!-- .post-thumbnail -->
 150  
 151      <?php else : ?>
 152  
 153      <a class="post-thumbnail" href="<?php the_permalink(); ?>" aria-hidden="true">
 154          <?php the_post_thumbnail( 'post-thumbnail', array( 'alt' => the_title_attribute( 'echo=0' ) ) ); ?>
 155      </a>
 156  
 157          <?php
 158      endif; // End is_singular().
 159      }
 160  endif;
 161  
 162  if ( ! function_exists( 'twentysixteen_excerpt' ) ) :
 163      /**
 164       * Displays the optional excerpt.
 165       *
 166       * Wraps the excerpt in a div element.
 167       *
 168       * Create your own twentysixteen_excerpt() function to override in a child theme.
 169       *
 170       * @since Twenty Sixteen 1.0
 171       *
 172       * @param string $css_class Optional. Class string of the div element. Defaults to 'entry-summary'.
 173       */
 174  	function twentysixteen_excerpt( $css_class = 'entry-summary' ) {
 175          $css_class = esc_attr( $css_class );
 176  
 177          if ( has_excerpt() || is_search() ) :
 178              ?>
 179              <div class="<?php echo $css_class; ?>">
 180                  <?php the_excerpt(); ?>
 181              </div><!-- .<?php echo $css_class; ?> -->
 182              <?php
 183          endif;
 184      }
 185  endif;
 186  
 187  if ( ! function_exists( 'twentysixteen_excerpt_more' ) && ! is_admin() ) :
 188      /**
 189       * Replaces "[...]" (appended to automatically generated excerpts) with ... and
 190       * a 'Continue reading' link.
 191       *
 192       * Create your own twentysixteen_excerpt_more() function to override in a child theme.
 193       *
 194       * @since Twenty Sixteen 1.0
 195       *
 196       * @return string 'Continue reading' link prepended with an ellipsis.
 197       */
 198  	function twentysixteen_excerpt_more() {
 199          $link = sprintf(
 200              '<a href="%1$s" class="more-link">%2$s</a>',
 201              esc_url( get_permalink( get_the_ID() ) ),
 202              /* translators: %s: Post title. Only visible to screen readers. */
 203              sprintf( __( 'Continue reading<span class="screen-reader-text"> "%s"</span>', 'twentysixteen' ), get_the_title( get_the_ID() ) )
 204          );
 205          return ' &hellip; ' . $link;
 206      }
 207      add_filter( 'excerpt_more', 'twentysixteen_excerpt_more' );
 208  endif;
 209  
 210  if ( ! function_exists( 'twentysixteen_categorized_blog' ) ) :
 211      /**
 212       * Determines whether blog/site has more than one category.
 213       *
 214       * Create your own twentysixteen_categorized_blog() function to override in a child theme.
 215       *
 216       * @since Twenty Sixteen 1.0
 217       *
 218       * @return bool True if there is more than one category, false otherwise.
 219       */
 220  	function twentysixteen_categorized_blog() {
 221          $all_the_cool_cats = get_transient( 'twentysixteen_categories' );
 222          if ( false === $all_the_cool_cats ) {
 223              // Create an array of all the categories that are attached to posts.
 224              $all_the_cool_cats = get_categories(
 225                  array(
 226                      'fields' => 'ids',
 227                      // We only need to know if there is more than one category.
 228                      'number' => 2,
 229                  )
 230              );
 231  
 232              // Count the number of categories that are attached to the posts.
 233              $all_the_cool_cats = count( $all_the_cool_cats );
 234  
 235              set_transient( 'twentysixteen_categories', $all_the_cool_cats );
 236          }
 237  
 238          if ( $all_the_cool_cats > 1 || is_preview() ) {
 239              // This blog has more than 1 category so twentysixteen_categorized_blog() should return true.
 240              return true;
 241          } else {
 242              // This blog has only 1 category so twentysixteen_categorized_blog() should return false.
 243              return false;
 244          }
 245      }
 246  endif;
 247  
 248  /**
 249   * Flushes out the transients used in twentysixteen_categorized_blog().
 250   *
 251   * @since Twenty Sixteen 1.0
 252   */
 253  function twentysixteen_category_transient_flusher() {
 254      if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
 255          return;
 256      }
 257      // Like, beat it. Dig?
 258      delete_transient( 'twentysixteen_categories' );
 259  }
 260  add_action( 'edit_category', 'twentysixteen_category_transient_flusher' );
 261  add_action( 'save_post', 'twentysixteen_category_transient_flusher' );
 262  
 263  if ( ! function_exists( 'twentysixteen_the_custom_logo' ) ) :
 264      /**
 265       * Displays the optional custom logo.
 266       *
 267       * Does nothing if the custom logo is not available.
 268       *
 269       * @since Twenty Sixteen 1.2
 270       */
 271  	function twentysixteen_the_custom_logo() {
 272          if ( function_exists( 'the_custom_logo' ) ) {
 273              the_custom_logo();
 274          }
 275      }
 276  endif;
 277  
 278  if ( ! function_exists( 'wp_body_open' ) ) :
 279      /**
 280       * Fire the wp_body_open action.
 281       *
 282       * Added for backward compatibility to support pre-5.2.0 WordPress versions.
 283       *
 284       * @since Twenty Sixteen 2.0
 285       */
 286  	function wp_body_open() {
 287          /**
 288           * Triggered after the opening <body> tag.
 289           *
 290           * @since Twenty Sixteen 2.0
 291           */
 292          do_action( 'wp_body_open' );
 293      }
 294  endif;


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