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| 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. | |
| 4 | |
| 5 #ifndef SERVICES_VIEW_MANAGER_ACCESS_POLICY_H_ | |
| 6 #define SERVICES_VIEW_MANAGER_ACCESS_POLICY_H_ | |
| 7 | |
| 8 #include "mojo/services/view_manager/interfaces/view_manager_constants.mojom.h" | |
| 9 #include "services/view_manager/ids.h" | |
| 10 | |
| 11 namespace view_manager { | |
| 12 | |
| 13 class ServerView; | |
| 14 | |
| 15 // AccessPolicy is used by ViewManagerServiceImpl to determine what a connection | |
| 16 // is allowed to do. | |
| 17 class AccessPolicy { | |
| 18 public: | |
| 19 virtual ~AccessPolicy() {} | |
| 20 | |
| 21 // Unless otherwise mentioned all arguments have been validated. That is the | |
| 22 // |view| arguments are non-null unless otherwise stated (eg CanSetView() is | |
| 23 // allowed to take a NULL view). | |
| 24 virtual bool CanRemoveViewFromParent(const ServerView* view) const = 0; | |
| 25 virtual bool CanAddView(const ServerView* parent, | |
| 26 const ServerView* child) const = 0; | |
| 27 virtual bool CanReorderView(const ServerView* view, | |
| 28 const ServerView* relative_view, | |
| 29 mojo::OrderDirection direction) const = 0; | |
| 30 virtual bool CanDeleteView(const ServerView* view) const = 0; | |
| 31 virtual bool CanGetViewTree(const ServerView* view) const = 0; | |
| 32 // Used when building a view tree (GetViewTree()) to decide if we should | |
| 33 // descend into |view|. | |
| 34 virtual bool CanDescendIntoViewForViewTree(const ServerView* view) const = 0; | |
| 35 virtual bool CanEmbed(const ServerView* view) const = 0; | |
| 36 virtual bool CanChangeViewVisibility(const ServerView* view) const = 0; | |
| 37 virtual bool CanSetViewSurfaceId(const ServerView* view) const = 0; | |
| 38 virtual bool CanSetViewBounds(const ServerView* view) const = 0; | |
| 39 virtual bool CanSetViewProperties(const ServerView* view) const = 0; | |
| 40 | |
| 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 views. | |
| 44 virtual bool ShouldNotifyOnHierarchyChange( | |
| 45 const ServerView* view, | |
| 46 const ServerView** new_parent, | |
| 47 const ServerView** old_parent) const = 0; | |
| 48 }; | |
| 49 | |
| 50 } // namespace view_manager | |
| 51 | |
| 52 #endif // SERVICES_VIEW_MANAGER_ACCESS_POLICY_H_ | |
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