1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef MOJO_SERVICES_VIEW_MANAGER_ACCESS_POLICY_H_
6 #define MOJO_SERVICES_VIEW_MANAGER_ACCESS_POLICY_H_
8 #include "mojo/services/public/interfaces/view_manager/view_manager_constants.mojom.h"
9 #include "mojo/services/view_manager/ids.h"
17 // AccessPolicy is used by ViewManagerServiceImpl to determine what a connection
21 virtual ~AccessPolicy() {}
23 // Unless otherwise mentioned all arguments have been validated. That is the
24 // |node| and/or |view| arguments are non-null unless otherwise stated (eg
25 // CanSetView() is allowed to take a NULL view).
26 virtual bool CanRemoveNodeFromParent(const Node* node) const = 0;
27 virtual bool CanAddNode(const Node* parent, const Node* child) const = 0;
28 virtual bool CanReorderNode(const Node* node,
29 const Node* relative_node,
30 OrderDirection direction) const = 0;
31 virtual bool CanDeleteNode(const Node* node) const = 0;
32 virtual bool CanGetNodeTree(const Node* node) const = 0;
33 // Used when building a node tree (GetNodeTree()) to decide if we should
34 // descend into |node|.
35 virtual bool CanDescendIntoNodeForNodeTree(const Node* node) const = 0;
36 virtual bool CanEmbed(const Node* node) const = 0;
37 virtual bool CanChangeNodeVisibility(const Node* node) const = 0;
38 virtual bool CanSetNodeContents(const Node* node) const = 0;
39 virtual bool CanSetNodeBounds(const Node* node) const = 0;
41 // Returns whether the connection should notify on a hierarchy change.
42 // |new_parent| and |old_parent| are initially set to the new and old parents
43 // but may be altered so that the client only sees a certain set of nodes.
44 virtual bool ShouldNotifyOnHierarchyChange(
46 const Node** new_parent,
47 const Node** old_parent) const = 0;
49 virtual bool ShouldSendViewDeleted(const ViewId& view_id) const = 0;
52 } // namespace service
55 #endif // MOJO_SERVICES_VIEW_MANAGER_ACCESS_POLICY_H_