Ticket #13052: media.diff

media.php

@@ -881 +881 @@
 }
 
 /**
+ * Return the URL of the next adjacent image in a gallery or the URL of the parent post
+ */
+function get_next_image_url() {
+        global $post;
+        $post = get_post($post);
+        $attachments = array_values(get_children( array('post_parent' => $post->post_parent, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => 'ASC', 'orderby' => 'menu_order ID') ));
+
+        foreach ( $attachments as $k => $attachment )
+                if ( $attachment->ID == $post->ID )
+                        break;
+
+                $k = $k + 1;
+
+                if ( isset($attachments[$k]) ) {
+                        return get_attachment_link($attachments[$k]->ID);
+                } else {
+                        return get_permalink($post->post_parent);
+                }
+}
+
+/**
  * Retrieve taxonomies attached to the attachment.
  *
  * @since 2.5.0