Add win_id attribute

qutebrowser/browser/tab.py

@@ -124,7 +124,8 @@ class AbstractTab(QWidget):
     load_status_changed = pyqtSignal(str)
     shutting_down = pyqtSignal()
 
-    def __init__(self, parent=None):
+    def __init__(self, win_id, parent=None):
+        self.win_id = win_id
         self.tab_id = next(tab_id_gen)
         super().__init__(parent)
         self.history = AbstractHistory(self)

qutebrowser/browser/webengine/webenginetab.py

@@ -65,7 +65,7 @@ class WebEngineHistory(tab.AbstractHistory):
 class WebEngineViewTab(tab.AbstractTab):
 
     def __init__(self, win_id, parent=None):
-        super().__init__()
+        super().__init__(win_id)
         widget = QWebEngineView()
         self.history = WebEngineHistory(self)
         self._set_widget(widget)

qutebrowser/browser/webkit/webkittab.py

@@ -71,7 +71,7 @@ class WebViewHistory(tab.AbstractHistory):
 class WebViewTab(tab.AbstractTab):
 
     def __init__(self, win_id, parent=None):
-        super().__init__()
+        super().__init__(win_id)
         widget = webview.WebView(win_id, self.tab_id)
         self.history = WebViewHistory(self)
         self._set_widget(widget)

tests/unit/browser/test_tab.py

@@ -38,8 +38,9 @@ def test_tab(qtbot, view):
         pytest.skip("View not available")
     w = view()
     qtbot.add_widget(w)
-    tab_w = tab.AbstractTab()
+    tab_w = tab.AbstractTab(win_id=0)
     tab_w.show()
+    assert tab_w.win_id == 0
     assert tab_w._widget is None
     tab_w._set_widget(w)
     assert tab_w._widget is w