Avoid warning because $a isn't called by reference

[friendica.git] / include / plugin.php

diff --git a/include/plugin.php b/include/plugin.php
index 2cb94b3504b3989377f1bbbd30aa9f3ef9b50de5..e25e9e85b1c367529743f859893968031465b430 100644 (file)
--- a/include/plugin.php
+++ b/include/plugin.php
@@ -534,3 +534,41 @@ function upgrade_bool_message($bbcode = false) {
        $x = upgrade_link($bbcode);
        return t('This action is not available under your subscription plan.') . (($x) ? ' ' . $x : '') ;
 }
+
+/**
+ * @brief Get the full path to relevant theme files by filename
+ * 
+ * This function search in the theme directory (and if not present in global theme directory)
+ * if there is a directory with the file extension and  for a file with the given
+ * filename. 
+ * 
+ * @param string $file Filename
+ * @param string $root Full root path
+ * @return string Path to the file or empty string if the file isn't found
+ */
+function theme_include($file, $root = '') {
+       // Make sure $root ends with a slash / if it's not blank
+       if($root !== '' && $root[strlen($root)-1] !== '/')
+               $root = $root . '/';
+       $theme_info = $a->theme_info;
+       if(is_array($theme_info) AND array_key_exists('extends',$theme_info))
+               $parent = $theme_info['extends'];
+       else
+               $parent = 'NOPATH';
+       $theme = current_theme();
+       $thname = $theme;
+       $ext = substr($file,strrpos($file,'.')+1);
+       $paths = array(
+               "{$root}view/theme/$thname/$ext/$file",
+               "{$root}view/theme/$parent/$ext/$file",
+               "{$root}view/$ext/$file",
+       );
+       foreach($paths as $p) {
+               // strpos() is faster than strstr when checking if one string is in another (http://php.net/manual/en/function.strstr.php)
+               if(strpos($p,'NOPATH') !== false)
+                       continue;
+               if(file_exists($p))
+                       return $p;
+       }
+       return '';
+}