Status bar message expiry based on signals and Urwid main loop

libmproxy/console/__init__.py

@@ -212,6 +212,12 @@ class ConsoleMaster(flow.FlowMaster):
 
         if options.app:
             self.start_app(self.options.app_host, self.options.app_port)
+        signals.call_in.connect(self.sig_call_in)
+
+    def sig_call_in(self, sender, seconds, callback, args=()):
+        def cb(*_):
+            return callback(*args)
+        self.loop.set_alarm_in(seconds, cb)
 
     def start_stream_to_path(self, path, mode="wb"):
         path = os.path.expanduser(path)
@@ -576,7 +582,7 @@ class ConsoleMaster(flow.FlowMaster):
         self.prompt_done()
         msg = p(txt, *args)
         if msg:
-            signals.status_message.send(message=msg, expire=1000)
+            signals.status_message.send(message=msg, expire=1)
 
     def prompt_cancel(self):
         self.prompt_done()

libmproxy/console/grideditor.py

@@ -132,7 +132,7 @@ class GridWalker(urwid.ListWalker):
         errors = self.lst[self.focus][1]
         emsg = self.editor.is_error(self.focus_col, val)
         if emsg:
-            signals.status_message.send(message = emsg, expire = 1000)
+            signals.status_message.send(message = emsg, expire = 1)
             errors.add(self.focus_col)
         else:
             errors.discard(self.focus_col)

libmproxy/console/signals.py

@@ -2,3 +2,4 @@
 import blinker
 
 status_message = blinker.Signal()
+call_in = blinker.Signal()

libmproxy/console/statusbar.py

@@ -1,4 +1,3 @@
-
 import time
 
 import urwid
@@ -7,11 +6,14 @@ from . import pathedit, signals
 from .. import utils
 
 
-
 class ActionBar(urwid.WidgetWrap):
     def __init__(self):
-        urwid.WidgetWrap.__init__(self, urwid.Text(""))
-        signals.status_message.connect(self.message)
+        urwid.WidgetWrap.__init__(self, None)
+        self.clear()
+        signals.status_message.connect(self.sig_message)
+
+    def clear(self):
+        self._w = urwid.Text("")
 
     def selectable(self):
         return True
@@ -22,9 +24,14 @@ class ActionBar(urwid.WidgetWrap):
     def prompt(self, prompt, text = ""):
         self._w = urwid.Edit(prompt, text or "")
 
-    def message(self, sender, message, expire=None):
-        self.expire = expire
-        self._w = urwid.Text(message)
+    def sig_message(self, sender, message, expire=None):
+        w = urwid.Text(message)
+        self._w = w
+        if expire:
+            def cb(*args):
+                if w == self._w:
+                    self.clear()
+            signals.call_in.send(seconds=expire, callback=cb)
 
 
 class StatusBar(urwid.WidgetWrap):