Ticket #18027: 18027.diff

wp-includes/theme.php

@@ -1935 +1935 @@
                         // any type is accepted
                         if ( true === $_wp_theme_features[$feature] )  // Registered for all types
                                 return true;
-                        $content_type = $args[0];
-                        if ( in_array($content_type, $_wp_theme_features[$feature][0]) )
+                        $content_type  = $args[0];
+                        // accept array( 'types' => array( 'post', 'page' ) ), array( 'types' => 'post' ), and
+                        // array( 'types' => true ), with a fallback to original array( 'post', 'page' ).
+                        if ( isset( $_wp_theme_features[ $feature ][0]['types'] ) )
+                                $content_types = $_wp_theme_features[ $feature ][0]['types'];
+                        elseif ( isset( $_wp_theme_features[ $feature ][0][0] ) )
+                                $content_types = $_wp_theme_features[ $feature ][0];
+                        else
                                 return true;
-                        else
-                                return false;
+                        if ( true === $content_types )
+                                return true;
+                        return in_array( $content_type, (array) $content_types );
                         break;
         }
 

wp-content/themes/twentyeleven/functions.php

@@ -107 +107 @@
         add_custom_background();
 
         // This theme uses Featured Images (also known as post thumbnails) for per-post/per-page Custom Header images
-        add_theme_support( 'post-thumbnails' );
+        add_theme_support( 'post-thumbnails', array( 'usage' => __( 'Usage for Twenty Eleven goes here.', 'twentyeleven' ) ) );
 
         // The next four constants set how Twenty Eleven supports custom headers.
 

wp-admin/includes/meta-boxes.php

@@ -913 +913 @@
  */
 function post_thumbnail_meta_box() {
         global $post;
+        $theme_support = (array) get_theme_support( 'post-thumbnails' );
+        if ( isset( $theme_support[0]['usage'] ) )
+                echo '<p>' . $theme_support[0]['usage'] . '</p>';
         $thumbnail_id = get_post_meta( $post->ID, '_thumbnail_id', true );
         echo _wp_post_thumbnail_html( $thumbnail_id );
 }