Protected Activities Support #10415

Backport from SL #2087 (Martin Abente)

Activities deletion causes troubles during classes. Teachers from
Paraguay and Uruguay asked for a mechanism to protect activities
from being easily deleted.

This patch provides a mechanism that uses a gconf value to determine
which activities will not contain the erase option at the list view
palette.

The gconf value contains a list of activities bundle indentifiers.

1 files changed, 12 insertions, 7 deletions

diff --git a/src/jarabe/desktop/activitieslist.py b/src/jarabe/desktop/activitieslist.py
index 4ced829..a8332f0 100644
--- a/src/jarabe/desktop/activitieslist.py
+++ b/src/jarabe/desktop/activitieslist.py
@@ -375,13 +375,7 @@ class ActivityListPalette(ActivityPalette):
         self.menu.append(self._favorite_item)
         self._favorite_item.show()
 
-        menu_item = MenuItem(_('Erase'), 'list-remove')
-        menu_item.connect('activate', self.__erase_activate_cb)
-        self.menu.append(menu_item)
-        menu_item.show()
-
-        if not os.access(activity_info.get_path(), os.W_OK):
-            menu_item.props.sensitive = False
+        self._add_erase_option(registry, activity_info)
 
         registry = bundleregistry.get_registry()
         self._activity_changed_sid = registry.connect('bundle_changed',
@@ -390,6 +384,17 @@ class ActivityListPalette(ActivityPalette):
 
         self.connect('destroy', self.__destroy_cb)
 
+    def _add_erase_option(self, registry, activity_info):
+        menu_item = MenuItem(_('Erase'), 'list-remove')
+        menu_item.connect('activate', self.__erase_activate_cb)
+        self.menu.append(menu_item)
+        menu_item.show()
+
+        if not os.access(activity_info.get_path(), os.W_OK) or \
+                registry.is_activity_protected(self._bundle_id):
+            menu_item.props.sensitive = False
+
+
     def __destroy_cb(self, palette):
         self.disconnect(self._activity_changed_sid)