- avoid previewing text/*
- javascript side more clear
closes #264
Signed-off-by: Jerome Jutteau <jerome@jutteau.fr>
 
         // Test if content can be previewed
          type = document.getElementById('file_select').files[0].type;
 
         // Test if content can be previewed
          type = document.getElementById('file_select').files[0].type;
-         if (type.indexOf("image") > -1 ||
-             type.indexOf("audio") > -1 ||
-             type.indexOf("text") > -1 ||
-             type.indexOf("video") > -1)
+         if (type.startsWith('image/') ||
+                type.startsWith('audio') ||
+                type.startsWith('text/plain') ||
+                type.startsWith('video/'))
          {
             document.getElementById('preview_link').href = preview_link_href;
             document.getElementById('preview_link_text').innerHTML = web_root + preview_link_href;
          {
             document.getElementById('preview_link').href = preview_link_href;
             document.getElementById('preview_link_text').innerHTML = web_root + preview_link_href;
 
 function jirafeau_is_viewable($mime)
 {
     if (!empty($mime)) {
 function jirafeau_is_viewable($mime)
 {
     if (!empty($mime)) {
-        /* Actually, verify if mime-type is an image or a text. */
-        $viewable = array('image', 'text', 'video', 'audio');
+        $viewable = array('image', 'video', 'audio');
         $decomposed = explode('/', $mime);
         $decomposed = explode('/', $mime);
-        return in_array($decomposed[0], $viewable);
+        if (in_array($decomposed[0], $viewable)) {
+            return true;
+        }
+        $viewable = array('text/plain');
+        if (in_array($mime, $viewable)) {
+            return true;
+        }