Changes access policy for embedded nodes

mojo/services/view_manager/view_manager_service_impl.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MOJO_SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_
 #define MOJO_SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 105 matching lines @@
   bool CanReorderNode(const Node* node,
                       const Node* relative_node,
                       OrderDirection direction) const;
   bool CanDeleteNode(const NodeId& node_id) const;
   bool CanDeleteView(const ViewId& view_id) const;
   bool CanSetView(const Node* node, const ViewId& view_id) const;
   bool CanSetFocus(const Node* node) const;
   bool CanGetNodeTree(const Node* node) const;
   bool CanEmbed(Id transport_node_id) const;
   bool CanSetNodeVisibility(const Node* node, bool visible) const;
+  // Used during GetNodeTreeImpl() to decide if we should descend into |node|
+  // when building the results of GetNodeTree().
+  bool CanDescendIntoNodeForNodeTree(const Node* node) const;
 
   // Deletes a node owned by this connection. Returns true on success. |source|
   // is the connection that originated the change.
   bool DeleteNodeImpl(ViewManagerServiceImpl* source, const NodeId& node_id);
 
   // Deletes a view owned by this connection. Returns true on success. |source|
   // is the connection that originated the change.
   bool DeleteViewImpl(ViewManagerServiceImpl* source, const ViewId& view_id);
 
   // Sets the view associated with a node.
   bool SetViewImpl(Node* node, const ViewId& view_id);
 
   // If |node| is known (in |known_nodes_|) does nothing. Otherwise adds |node|
   // to |nodes|, marks |node| as known and recurses.
   void GetUnknownNodesFrom(const Node* node, std::vector<const Node*>* nodes);
 
+  // Returns true if node (or one of its ancestors) is embedded in another
+  // connection.
+  bool IsNodeEmbeddedInAnotherConnection(const Node* node) const;
+
   // Removes |node| and all its descendants from |known_nodes_|. This does not
   // recurse through nodes that were created by this connection. All nodes owned
   // by this connection are added to |local_nodes|.
   void RemoveFromKnown(const Node* node, std::vector<Node*>* local_nodes);
 
   // Adds |node_id| to the set of roots this connection knows about. The caller
   // should have verified |node_id| is not among the roots of this connection.
   void AddRoot(const NodeId& node_id);
 
   // Removes |node_id| from the set of roots this connection knows about.
   void RemoveRoot(const NodeId& node_id);
 
+  void RemoveChildrenAsPartOfEmbed(const NodeId& node_id);
+
   // Returns true if |node| is a non-null and a descendant of |roots_| (or
   // |roots_| is empty).
   bool IsNodeDescendantOfRoots(const Node* node) const;
 
   // Returns true if notification should be sent of a hierarchy change. If true
   // is returned, any nodes that need to be sent to the client are added to
   // |to_send|.
   bool ShouldNotifyOnHierarchyChange(const Node* node,
                                      const Node** new_parent,
                                      const Node** old_parent,
                                      std::vector<const Node*>* to_send);
 
   // Converts an array of Nodes to NodeDatas. This assumes all the nodes are
   // valid for the client. The parent of nodes the client is not allowed to see
   // are set to NULL (in the returned NodeDatas).
   Array<NodeDataPtr> NodesToNodeDatas(const std::vector<const Node*>& nodes);
 
+  // Implementation of GetNodeTree(). Adds |node| to |nodes| and recurses if
+  // CanDescendIntoNodeForNodeTree() returns true.
+  void GetNodeTreeImpl(const Node* node, std::vector<const Node*>* nodes) const;
+
   // ViewManagerService:
   virtual void CreateNode(Id transport_node_id,
                           const Callback<void(ErrorCode)>& callback) OVERRIDE;
   virtual void DeleteNode(Id transport_node_id,
                           const Callback<void(bool)>& callback) OVERRIDE;
   virtual void AddNode(Id parent_id,
                        Id child_id,
                        const Callback<void(bool)>& callback) OVERRIDE;
   virtual void RemoveNodeFromParent(
       Id node_id,
@@ skipping 72 matching lines @@
 
 #if defined(OS_WIN)
 #pragma warning(pop)
 #endif
 
 }  // namespace service
 }  // namespace view_manager
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_VIEW_MANAGER_VIEW_MANAGER_SERVICE_IMPL_H_