[LyX/master] Return an error if file-open is called with a non-absolute path

[Vincent van Ravesteijn]

commit 9c4461deea8eabb5bc025a08fa6ce11cb1c9e6fd
Author: Vincent van Ravesteijn <v...@lyx.org>
Date:   Mon Dec 2 21:04:46 2013 +0100

    Return an error if file-open is called with a non-absolute path

diff --git a/src/frontends/qt4/GuiApplication.cpp 
b/src/frontends/qt4/GuiApplication.cpp
index 72ed714..6d70345 100644
--- a/src/frontends/qt4/GuiApplication.cpp
+++ b/src/frontends/qt4/GuiApplication.cpp
@@ -1572,8 +1572,12 @@ void GuiApplication::dispatch(FuncRequest const & cmd, 
DispatchResult & dr)
                validateCurrentView();
                // FIXME: create a new method shared with LFUN_HELP_OPEN.
                string const fname = to_utf8(cmd.argument());
-               bool const is_open = FileName::isAbsolute(fname)
-                       && theBufferList().getBuffer(FileName(fname));
+               if (!FileName::isAbsolute(fname)) {
+                       dr.setError(true);
+                       dr.setMessage(_("Absolute filename expected."));
+                       break;
+               }               
+               bool const is_open = theBufferList().getBuffer(FileName(fname));
                if (d->views_.empty()
                    || (!lyxrc.open_buffers_in_tabs
                        && current_view_->documentBufferView() != 0