Added is_active method to Navigation class. Replaced the get_navigation and is_active...

[philo.git] / contrib / navigation / models.py

diff --git a/contrib/navigation/models.py b/contrib/navigation/models.py
index b37f614..91b2147 100644 (file)
--- a/contrib/navigation/models.py
+++ b/contrib/navigation/models.py
@@ -158,6 +158,33 @@ class Navigation(TreeEntity):
                        return self.url_or_subpath
        target_url = property(get_target_url)
        
+       def is_active(self, request):
+               # First check if this particular navigation is active. It is considered active if:
+               # - the requested node is this instance's target node and its subpath matches the requested path.
+               # - the requested node is a descendant of this instance's target node and this instance's target
+               #   node is not the hosting node of this navigation structure.
+               # - this instance has no target node and the url matches either the request path or the full url.
+               # - any of this instance's children are active.
+               node = request.node
+               
+               if self.target_node == node:
+                       if self.target_url == request.path:
+                               return True
+               elif self.target_node is None:
+                       if self.url_or_subpath == request.path or self.url_or_subpath == "http%s://%s%s" % (request.is_secure() and 's' or '', request.get_host(), request.path):
+                               return True
+               elif self.target_node.is_ancestor_of(node) and self.target_node != self.hosting_node:
+                       return True
+               
+               # Always fall back to whether the node has active children.
+               return self.has_active_children(request)
+       
+       def has_active_children(self, request):
+               for child in self.get_children():
+                       if child.is_active(request):
+                               return True
+               return False
+       
        def _has_changed(self):
                if model_to_dict(self) == self._initial_data:
                        return False