Merged in changes from CVS trunk.

[gnu-emacs] / src / fileio.c

diff --git a/src/fileio.c b/src/fileio.c
index 9e86b6a9189809c6dc95349faba9f3600d312a7a..587f36d537dc6e032c2cda1a0aab92af5e6f6a97 100644 (file)
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -3368,7 +3368,8 @@ This is the sort of file that holds an ordinary stream of data bytes.  */)
 }
 \f
 DEFUN ("file-modes", Ffile_modes, Sfile_modes, 1, 1, 0,
-       doc: /* Return mode bits of file named FILENAME, as an integer.  */)
+       doc: /* Return mode bits of file named FILENAME, as an integer.
+Return nil, if file does not exist or is not accessible.  */)
      (filename)
      Lisp_Object filename;
 {
@@ -4262,7 +4263,7 @@ actually used.  */)
       if (how_much < 0)
        {
          xfree (conversion_buffer);
-
+         coding_free_composition_data (&coding);
          if (how_much == -1)
            error ("IO error reading %s: %s",
                   SDATA (orig_filename), emacs_strerror (errno));
@@ -4284,6 +4285,7 @@ actually used.  */)
       if (bufpos == inserted)
        {
          xfree (conversion_buffer);
+         coding_free_composition_data (&coding);
          emacs_close (fd);
          specpdl_ptr--;
          /* Truncate the buffer to the size of the file.  */
@@ -5713,14 +5715,21 @@ Lisp_Object
 auto_save_1 ()
 {
   struct stat st;
+  Lisp_Object modes;
+
+  auto_save_mode_bits = 0666;
 
   /* Get visited file's mode to become the auto save file's mode.  */
-  if (! NILP (current_buffer->filename)
-      && stat (SDATA (current_buffer->filename), &st) >= 0)
-    /* But make sure we can overwrite it later!  */
-    auto_save_mode_bits = st.st_mode | 0600;
-  else
-    auto_save_mode_bits = 0666;
+  if (! NILP (current_buffer->filename))
+    {
+      if (stat (SDATA (current_buffer->filename), &st) >= 0)
+       /* But make sure we can overwrite it later!  */
+       auto_save_mode_bits = st.st_mode | 0600;
+      else if ((modes = Ffile_modes (current_buffer->filename),
+               INTEGERP (modes)))
+       /* Remote files don't cooperate with stat.  */
+       auto_save_mode_bits = XINT (modes) | 0600;
+    }
 
   return
     Fwrite_region (Qnil, Qnil,
@@ -6172,6 +6181,23 @@ DEFUN ("read-file-name-internal", Fread_file_name_internal, Sread_file_name_inte
   return Ffile_exists_p (string);
 }
 
+DEFUN ("next-read-file-uses-dialog-p", Fnext_read_file_uses_dialog_p,
+       Snext_read_file_uses_dialog_p, 0, 0, 0,
+       doc: /* Return t if a call to `read-file-name' will use a dialog.
+The return value is only relevant for a call to `read-file-name' that happens
+before any other event (mouse or keypress) is handeled.  */)
+  ()
+{
+#if defined (USE_MOTIF) || defined (HAVE_NTGUI) || defined (USE_GTK) || defined (TARGET_API_MAC_CARBON)
+  if ((NILP (last_nonmenu_event) || CONSP (last_nonmenu_event))
+      && use_dialog_box
+      && use_file_dialog
+      && have_menus_p ())
+    return Qt;
+#endif
+  return Qnil;
+}
+
 DEFUN ("read-file-name", Fread_file_name, Sread_file_name, 1, 6, 0,
        doc: /* Read file name, prompting with PROMPT and completing in directory DIR.
 Value is not expanded---you must call `expand-file-name' yourself.
@@ -6304,10 +6330,7 @@ and `read-file-name-function'.  */)
   GCPRO2 (insdef, default_filename);
 
 #if defined (USE_MOTIF) || defined (HAVE_NTGUI) || defined (USE_GTK) || defined (TARGET_API_MAC_CARBON)
-  if ((NILP (last_nonmenu_event) || CONSP (last_nonmenu_event))
-      && use_dialog_box
-      && use_file_dialog
-      && have_menus_p ())
+  if (! NILP (Fnext_read_file_uses_dialog_p ()))
     {
       /* If DIR contains a file name, split it.  */
       Lisp_Object file;
@@ -6319,7 +6342,8 @@ and `read-file-name-function'.  */)
        }
       if (!NILP(default_filename))
         default_filename = Fexpand_file_name (default_filename, dir);
-      val = Fx_file_dialog (prompt, dir, default_filename, mustmatch);
+      val = Fx_file_dialog (prompt, dir, default_filename, mustmatch,
+                            EQ (predicate, Qfile_directory_p) ? Qt : Qnil);
       add_to_history = 1;
     }
   else
@@ -6691,6 +6715,7 @@ a non-nil value.  */);
 
   defsubr (&Sread_file_name_internal);
   defsubr (&Sread_file_name);
+  defsubr (&Snext_read_file_uses_dialog_p);
 
 #ifdef unix
   defsubr (&Sunix_sync);