Ticket #36418: media.php.patch

media.php

@@ -757 +757 @@
                 if ( $icon && $src = wp_mime_type_icon( $attachment_id ) ) {
                         /** This filter is documented in wp-includes/post.php */
                         $icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' );
+                        $icon_dir_uri = apply_filters( 'icon_dir_uri', includes_url( 'images/media' ) );
 
-                        $src_file = $icon_dir . '/' . wp_basename( $src );
-                        @list( $width, $height ) = getimagesize( $src_file );
+                        $dirs = apply_filters( 'icon_dirs', array( $icon_dir => $icon_dir_uri ) );
+
+                        $base_src = wp_basename( $src );
+                        while ( $dirs ) {
+                                $keys = array_keys( $dirs );
+                                $dir = array_shift( $keys );
+                                $uri = array_shift( $dirs );
+                                $src_file = $dir . '/' . $base_src;
+                                @list( $width, $height ) = getimagesize( $src_file );
+                                if ( $width && $height ) {
+                                        break;
+                                }
+                        }
                 }
 
                 if ( $src && $width && $height ) {