widgets.browserview: Try to fix crash

When running ranger with two directories and using a command with macros, this
crash happens.  To reproduce, run this and then type "yp"

ranger /usr/bin /var/tmp

Traceback was:

Ranger version: 1.5.0, executed with python 3.2.2
Locale: en_US.UTF-8
Current file: /usr/lib
Traceback (most recent call last):
  File "/home/common/archive/repos/ranger/ranger/core/main.py", line 103, in main
    fm.loop()
  File "/home/common/archive/repos/ranger/ranger/core/fm.py", line 202, in loop
    ui.handle_input()
  File "/home/common/archive/repos/ranger/ranger/gui/ui.py", line 210, in handle_input
    self.handle_key(key)
  File "/home/common/archive/repos/ranger/ranger/gui/ui.py", line 146, in handle_key
    self.press(key)
  File "/home/common/archive/repos/ranger/ranger/gui/ui.py", line 161, in press
    quantifier=keybuffer.quantifier)
  File "/home/common/archive/repos/ranger/ranger/core/actions.py", line 111, in execute_console
    string = self.substitute_macros(string, additional=macros)
  File "/home/common/archive/repos/ranger/ranger/core/actions.py", line 115, in substitute_macros
    return _MacroTemplate(string).safe_substitute(self._get_macros(),
  File "/home/common/archive/repos/ranger/ranger/core/actions.py", line 153, in _get_macros
    macros[i + 'f'] = shell_quote(tab_dir.pointed_obj.path)
AttributeError: 'NoneType' object has no attribute 'path'

1 files changed, 5 insertions, 0 deletions

diff --git a/ranger/gui/widgets/browserview.py b/ranger/gui/widgets/browserview.py
index 12e1d9bd..84f77de6 100644
--- a/ranger/gui/widgets/browserview.py
+++ b/ranger/gui/widgets/browserview.py
@@ -98,6 +98,11 @@ class BrowserView(Widget, DisplayableContainer):
 			self.win.erase()
 			self.need_redraw = True
 			self.need_clear = False
+		for path in self.fm.tabs.values():
+			if path is not None:
+				directory = self.env.get_directory(path)
+				directory.load_content_if_outdated()
+				directory.use()
 		DisplayableContainer.draw(self)
 		if self.settings.draw_borders:
 			self._draw_borders()