From 3c21d5986ea44d94c11130b36d69833aadb73941 Mon Sep 17 00:00:00 2001
From: ZDarian <zkdarian@openmailbox.org>
Date: Sun, 18 Jan 2015 07:34:33 -0700
Subject: [PATCH] Added toggle ability to :set

Append '!' to option name of boolean value to toggle its state.
---
 qutebrowser/config/config.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/qutebrowser/config/config.py b/qutebrowser/config/config.py
index b12c33dcf..170586090 100644
--- a/qutebrowser/config/config.py
+++ b/qutebrowser/config/config.py
@@ -499,6 +499,8 @@ class ConfigManager(QObject):
         If the option name ends with '?', the value of the option is shown
         instead.
 
+        If the option name ends with '!' and it is a boolean value, toggle it.
+
         //
 
         Wrapper for self.set() to output exceptions in the status bar.
@@ -523,6 +525,13 @@ class ConfigManager(QObject):
                 val = self.get(sectname, optname[:-1], transformed=False)
                 message.info(win_id, "{} {} = {}".format(
                     sectname, optname[:-1], val), immediately=True)
+            elif optname.endswith('!'):
+                val = self.get(sectname, optname[:-1])
+                layer = 'temp' if temp else 'conf'
+                if type(val) == type(True):
+                    self.set(layer, sectname, optname[:-1], str(not val))
+                else:
+                    raise cmdexc.CommandError("set: Attempted inversion of non-boolean value. Aborting.")
             else:
                 if value is None:
                     raise cmdexc.CommandError("set: The following arguments "