names: Use AppView for app page

Tests:

- App page shows properly. Status of the current domains is shown properly.

- App page does not show enable/disable button.

Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>

plinth/modules/names/__init__.py

@@ -34,6 +34,8 @@ class NamesApp(app_module.App):
 
     _version = 1
 
+    can_be_disabled = False
+
     def __init__(self):
         """Create components for the app."""
         super().__init__()

plinth/modules/names/urls.py

@@ -8,5 +8,5 @@ from django.urls import re_path
 from . import views
 
 urlpatterns = [
-    re_path(r'^sys/names/$', views.index, name='index'),
+    re_path(r'^sys/names/$', views.NamesAppView.as_view(), name='index'),
 ]

plinth/modules/names/views.py

@@ -3,21 +3,22 @@
 FreedomBox app for name services.
 """
 
-from django.template.response import TemplateResponse
-
-from plinth import app as app_module
+from plinth.views import AppView
 
 from . import components
 
 
-def index(request):
-    """Serve name services page."""
-    status = get_status()
+class NamesAppView(AppView):
+    """Show names app main page."""
 
-    return TemplateResponse(request, 'names.html', {
-        'app_info': app_module.App.get('names').info,
-        'status': status
-    })
+    app_id = 'names'
+    template_name = 'names.html'
+
+    def get_context_data(self, *args, **kwargs):
+        """Add additional context data for template."""
+        context = super().get_context_data(*args, **kwargs)
+        context['status'] = get_status()
+        return context
 
 
 def get_status():