Ticket #10467: parent_theme_root-2.patch

wp-includes/theme.php

@@ -310 +310 @@
                 return $themes;
 
         sort($theme_files);
+        
+        /* Set the original theme_root and theme_loc values so they can be unfiltered at the start of each iteration. */
+        $orig_theme_root = $theme_root;
+        $orig_theme_loc = $theme_loc;
 
         foreach ( (array) $theme_files as $theme_file ) {
+                /* Reset the theme_root and theme_loc values as they may have been filtered in the previous iteration. */
+                $theme_root = $orig_theme_root;
+                $theme_loc = $orig_theme_loc;
+                
                 if ( !is_readable("$theme_root/$theme_file") ) {
                         $wp_broken_themes[$theme_file] = array('Name' => $theme_file, 'Title' => $theme_file, 'Description' => __('File not readable.'));
                         continue;
@@ -348 +356 @@
                 }
 
                 $template = trim($template);
-
+                
+                $theme_root = apply_filters( 'parent_theme_root_' . $template, $theme_root );
+                $theme_loc = apply_filters( 'parent_theme_loc_' . $template, $theme_loc );
+                
                 if ( !file_exists("$theme_root/$template/index.php") ) {
                         $parent_dir = dirname(dirname($theme_file));
                         if ( file_exists("$theme_root/$parent_dir/$template/index.php") ) {