Register tab registry in meta registry.

qutebrowser/utils/usertypes.py

@@ -23,6 +23,7 @@ Module attributes:
     _UNSET: Used as default argument in the constructor so default can be None.
 """
 
+import itertools
 import operator
 import collections.abc
 import enum as pyenum
@@ -35,6 +36,9 @@ from qutebrowser.utils import log, qtutils
 _UNSET = object()
 
 
+tab_id_gen = itertools.count(0)
+
+
 def enum(name, *items, start=1, is_int=False):
     """Factory for simple enumerations.
 

qutebrowser/widgets/webview.py

@@ -98,6 +98,8 @@ class WebView(QWebView):
         hintmanager.mouse_event.connect(self.on_mouse_event)
         hintmanager.set_open_target.connect(self.set_force_open_target)
         objreg.register('hintmanager', hintmanager, registry=self.registry)
+        tab_id = next(usertypes.tab_id_gen)
+        objreg.register('tab-{}'.format(tab_id), self.registry, scope='meta')
         page.linkHovered.connect(self.linkHovered)
         page.mainFrame().loadStarted.connect(self.on_load_started)
         page.change_title.connect(self.titleChanged)