[tui] call set directly instead of footer attribute that doe

# HG changeset patch
# User Takumi IINO <trot.thunder@gmail.com>
# Date 1339417342 -32400
# Node ID 738cfac773d7f51b6e498aa280281e1482c370f5
# Parent  156edfa6d8e69713ad4cbf2427fc0ddea87d4b08
[tui] call set directly instead of footer attribute that does not exist

hgviewlib.curses.mainframe.Footer dose not have footer attribute.

Traceback (most recent call last):
  File "/usr/bin/hgview", line 33, in <module>
    main()
  File "/usr/lib/python2.6/site-packages/hgviewlib/application.py", line 192, in main
    sys.exit(start(repo, opts, args, parser.error))
  File "/usr/lib/python2.6/site-packages/hgviewlib/application.py", line 143, in start
    return app.exec_()
  File "/usr/lib/python2.6/site-packages/hgviewlib/curses/application.py", line 87, in exec_
    out = self.mainloop.run()
  File "/usr/lib/python2.6/site-packages/urwid/main_loop.py", line 274, in run
    self.screen.run_wrapper(self._run)
  File "/usr/lib/python2.6/site-packages/urwid/raw_display.py", line 237, in run_wrapper
    return fn()
  File "/usr/lib/python2.6/site-packages/urwid/main_loop.py", line 307, in _run
    self.event_loop.run()
  File "/usr/lib/python2.6/site-packages/urwid/main_loop.py", line 682, in run
    self._loop()
  File "/usr/lib/python2.6/site-packages/urwid/main_loop.py", line 720, in _loop
    self._watch_files[fd]()
  File "/usr/lib/python2.6/site-packages/urwid/main_loop.py", line 358, in _update
    self.process_input(keys)
  File "/usr/lib/python2.6/site-packages/urwid/main_loop.py", line 447, in process_input
    k = self._topmost_widget.keypress(self.screen_size, k)
  File "/usr/lib/python2.6/site-packages/hgviewlib/curses/mainframe.py", line 141, in keypress
    key = super(MainFrame, self).keypress(size, key)
  File "/usr/lib/python2.6/site-packages/urwid/container.py", line 629, in keypress
    return self.footer.keypress((maxcol,),key)
  File "/usr/lib/python2.6/site-packages/hgviewlib/curses/mainframe.py", line 204, in keypress
    cmdline = self.call_command()
  File "/usr/lib/python2.6/site-packages/hgviewlib/curses/mainframe.py", line 269, in call_command
    self.footer.set('default', '', '')
  File "/usr/lib/python2.6/site-packages/urwid/decoration.py", line 309, in __getattr__
    return getattr(self._original_widget, name)
AttributeError: 'Edit' object has no attribute 'footer'

diff --git a/hgviewlib/curses/mainframe.py b/hgviewlib/curses/mainframe.py
--- a/hgviewlib/curses/mainframe.py
+++ b/hgviewlib/curses/mainframe.py
@@ -266,7 +266,7 @@
         '''
         cmdline = self.get_edit_text()
         if not cmdline:
-            self.footer.set('default', '', '')
+            self.set('default', '', '')
             return
         cmdline = cmdline.strip()
         if cmdline.endswith('?'):