From c9a09754464e27a5f34295d8a1c0b435248c104c Mon Sep 17 00:00:00 2001
From: Aldo Cortesi <aldo@nullcube.com>
Date: Sun, 22 Mar 2015 15:11:54 +1300
Subject: [PATCH] console: observe state objects for changes, fire event to
 update status bar.

---
 libmproxy/console/__init__.py  | 9 +++++++++
 libmproxy/console/signals.py   | 3 +++
 libmproxy/console/statusbar.py | 4 ++++
 3 files changed, 16 insertions(+)

diff --git a/libmproxy/console/__init__.py b/libmproxy/console/__init__.py
index 34abe6f4f..b593d2821 100644
--- a/libmproxy/console/__init__.py
+++ b/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)
diff --git a/libmproxy/console/signals.py b/libmproxy/console/signals.py
index e8944afb6..a62b2a4e1 100644
--- a/libmproxy/console/signals.py
+++ b/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()
diff --git a/libmproxy/console/statusbar.py b/libmproxy/console/statusbar.py
index 30819188e..7663ee44b 100644
--- a/libmproxy/console/statusbar.py
+++ b/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)