console: observe state objects for changes, fire event to update status bar.

libmproxy/console/__init__.py

@@ -33,6 +33,10 @@ class ConsoleState(flow.State):
 
         self.flowsettings = weakref.WeakKeyDictionary()
 
+    def __setattr__(self, name, value):
+        self.__dict__[name] = value
+        signals.update_settings.send(self)
+
     def add_flow_setting(self, flow, key, value):
         d = self.flowsettings.setdefault(flow, {})
         d[key] = value
@@ -212,6 +216,10 @@ class ConsoleMaster(flow.FlowMaster):
             self.start_app(self.options.app_host, self.options.app_port)
         signals.call_in.connect(self.sig_call_in)
 
+    def __setattr__(self, name, value):
+        self.__dict__[name] = value
+        signals.update_settings.send(self)
+
     def sig_call_in(self, sender, seconds, callback, args=()):
         def cb(*_):
             return callback(*args)
@@ -598,6 +606,7 @@ class ConsoleMaster(flow.FlowMaster):
         elif a == "u":
             self.server.config.no_upstream_cert =\
                 not self.server.config.no_upstream_cert
+            signals.update_settings.send(self)
 
     def shutdown(self):
         self.state.killall(self)

libmproxy/console/signals.py

@@ -17,3 +17,6 @@ call_in = blinker.Signal()
 
 # Focus the body, footer or header of the main window
 focus = blinker.Signal()
+
+# Fired when settings change
+update_settings = blinker.Signal()

libmproxy/console/statusbar.py

@@ -113,6 +113,10 @@ class StatusBar(urwid.WidgetWrap):
         self.ab = ActionBar()
         self.ib = urwid.WidgetWrap(urwid.Text(""))
         self._w = urwid.Pile([self.ib, self.ab])
+        signals.update_settings.connect(self.sig_update_settings)
+
+    def sig_update_settings(self, sender):
+        self.redraw()
 
     def keypress(self, *args, **kwargs):
         return self.ab.keypress(*args, **kwargs)