# HG changeset patch
# User Torsten <ttl@justmail.de>
# Date 1445067667 -7200
# Node ID 9e3b3aca6eadda647d45b32b51e905ff4b9a5846
# Parent  802dc52d4d469d38250acb6eb88e78e105a895cf
prevent doc browser from searching for an empty string (bug 46227)

* webinfo.cc (search): just return if search text is empty or only
  contains whitespace

diff -r 802dc52d4d46 -r 9e3b3aca6ead libgui/src/qtinfo/webinfo.cc
--- a/libgui/src/qtinfo/webinfo.cc	Fri Oct 16 11:03:26 2015 +0200
+++ b/libgui/src/qtinfo/webinfo.cc	Sat Oct 17 09:41:07 2015 +0200
@@ -241,6 +241,9 @@
 void
 webinfo::search ()
 {
+  if (_search_line_edit->text ().trimmed ().isEmpty ())
+    return;   // do nothing if search field is empty or only has whitespaces
+
   if (_search_check_box->isChecked ())
     {
       // Global search