window: Add more non-returnable pages

src/ui/pages/done.py

@@ -21,7 +21,7 @@ class DonePage(Gtk.Box, Page):
 
     @Gtk.Template.Callback('restart_button_clicked')
     def _restart_button_clicked(self, button):
-        global_state.advance(self, allow_return=False)
+        global_state.advance(self)
 
     @Gtk.Template.Callback('terminal_button_toggled')
     def _terminal_button_toggled(self, toggle_button):

src/ui/pages/summary.py

@@ -52,7 +52,7 @@ class SummaryPage(Gtk.Box, Page):
 
     @Gtk.Template.Callback('continue')
     def _continue(self, button):
-        global_state.advance(self, allow_return=False)
+        global_state.advance(self)
         installation_scripting.can_run_configure()
 
     @Gtk.Template.Callback('summary_row_activated')

src/ui/window.py

@@ -125,7 +125,7 @@ page_name_to_image = {
     'welcome':              None,
 }
 
-non_returnable_pages = ['done', 'failed', 'summary']
+non_returnable_pages = ['done', 'failed', 'install', 'restart', 'summary']
 
 
 forward = 1

src/util/installation_scripting.py

@@ -93,7 +93,7 @@ class InstallationScripting():
                 config.set('installation_running', False)
                 # Translators: Notification text
                 global_state.send_notification(_("Finished Installation"), '')
-                global_state.advance(None, allow_return=False)
+                global_state.advance(None)
             else:
                 self._try_start_next_script()