Add current value to completions for settings

TODO

@@ -42,7 +42,6 @@ New big features
 Improvements / minor features
 =============================
 
-- Add current value as completion item for settings
 - Reimplement tabbar to paint it by ourselves to look like dwb
 - Save cookies in Netscape format so it can be used by wget.
     http://www.cookiecentral.com/faq/#3.5

qutebrowser/models/completion.py

@@ -89,6 +89,11 @@ class SettingValueCompletionModel(BaseCompletionModel):
 
     def __init__(self, section, option=None, parent=None):
         super().__init__(parent)
+        cur_cat = self.new_category("Current")
+        value = config.get(section, option, raw=True)
+        if not value:
+            value = '""'
+        self.cur_item = self.new_item(cur_cat, value, "Current value")
         if hasattr(configdata.DATA[section], 'valtype'):
             # Same type for all values (ValueList)
             vals = configdata.DATA[section].valtype.complete()
@@ -99,10 +104,18 @@ class SettingValueCompletionModel(BaseCompletionModel):
             # Different type for each value (KeyValue)
             vals = configdata.DATA[section][option].typ.complete()
         if vals is not None:
-            cat = self.new_category(section)
+            cat = self.new_category("Allowed")
             for (val, desc) in vals:
                 self.new_item(cat, val, desc)
 
+    @pyqtSlot(str, str)
+    def on_config_changed(self, section, option):
+        """Update current value when config changed."""
+        value = config.get(section, option)
+        if not value:
+            value = '""'
+        self.setData(self.cur_item.index(), value, Qt.DisplayRole)
+
 
 class CommandCompletionModel(BaseCompletionModel):
 

qutebrowser/utils/completer.py

@@ -80,6 +80,7 @@ class Completer(QObject):
             for opt in configdata.DATA[sectname].keys():
                 model = SettingValueCompletionModel(sectname, opt, self)
                 self._models['value'][sectname][opt] = CFM(model)
+                config.instance().changed.connect(model.on_config_changed)
 
     def _get_new_completion(self, parts, cursor_part):
         """Get a new completion model.