Make inspector detachable.

TODO

@@ -64,8 +64,6 @@ Improvements / minor features
 - Display metavars for commands in input bar.
 - count support for special keys
 - set-as-default argument/command
-- Make inspector height resizable
-- Make inspector detachable (own window)
 - Enable disk caching
     QNetworkManager.setCache() and use a QNetworkDiskCache probably
 - clear cookies command
@@ -80,7 +78,6 @@ Improvements / minor features
          elem = frame.findFirstElement('*:focus')
 - somehow unfocus elements (hide blinking cursor) when insert mode is left?
 - tabs: some more padding?
-- Make it possible to open inspector in a new window.
 - Copy link location on crash mail should not copy mailto:
 - Drag&Drop of tabs to other windows
 - Use QNetworkAccessManager per QWebPage again so we can set proxy per tab.

qutebrowser/config/configdata.py

@@ -214,6 +214,10 @@ DATA = OrderedDict([
         ('message-timeout',
          SettingValue(types.Int(), '2000'),
          "Time (in ms) to show messages in the statusbar for."),
+
+        ('detach-inspector',
+         SettingValue(types.Bool(), 'false'),
+         "Whether to show the webinspector as own window."),
     )),
 
     ('network', sect.KeyValue(

qutebrowser/widgets/mainwindow.py

@@ -76,8 +76,10 @@ class MainWindow(QWidget):
         self.completion = CompletionView(self)
         self.inspector = QWebInspector()
         self.inspector.hide()
-        self._splitter.addWidget(self.inspector)
-        self._splitter.setStretchFactor(0, 50)
+
+        if not config.get('ui', 'detach-inspector'):
+            self._splitter.addWidget(self.inspector)
+            self._splitter.setStretchFactor(0, 50)
 
         self._vbox.addWidget(self._splitter)
 
@@ -97,6 +99,16 @@ class MainWindow(QWidget):
         """Resize completion if config changed."""
         if section == 'completion' and option == 'height':
             self.resize_completion()
+        if section == 'ui' and option == 'detach-inspector':
+            detach = config.get('ui', 'detach-inspector')
+            if detach and self.inspector.parent() is not None:
+                shown = self.inspector.isVisible()
+                self.inspector.setParent(None)
+                if shown:
+                    self.inspector.show()
+            elif not detach and self.inspector.parent() is None:
+                self._splitter.addWidget(self.inspector)
+                self._splitter.setStretchFactor(0, 50)
 
     def resize_completion(self):
         """Adjust completion according to config."""