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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MOJO_SERVICES_VIEW_MANAGER_IDS_H_ | 5 #ifndef MOJO_SERVICES_VIEW_MANAGER_IDS_H_ |
6 #define MOJO_SERVICES_VIEW_MANAGER_IDS_H_ | 6 #define MOJO_SERVICES_VIEW_MANAGER_IDS_H_ |
7 | 7 |
8 #include "mojo/services/public/cpp/view_manager/util.h" | |
9 #include "mojo/services/public/cpp/view_manager/view_manager_types.h" | 8 #include "mojo/services/public/cpp/view_manager/view_manager_types.h" |
10 #include "mojo/services/view_manager/view_manager_export.h" | 9 #include "mojo/services/view_manager/view_manager_export.h" |
11 | 10 |
12 namespace mojo { | 11 namespace mojo { |
13 namespace services { | 12 namespace services { |
14 namespace view_manager { | 13 namespace view_manager { |
15 | 14 |
16 // Adds a bit of type safety to node ids. | 15 // Adds a bit of type safety to node ids. |
17 struct MOJO_VIEW_MANAGER_EXPORT NodeId { | 16 struct MOJO_VIEW_MANAGER_EXPORT NodeId { |
18 NodeId(TransportConnectionId connection_id, | 17 NodeId(TransportConnectionId connection_id, |
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49 | 48 |
50 bool operator!=(const ViewId& other) const { | 49 bool operator!=(const ViewId& other) const { |
51 return !(*this == other); | 50 return !(*this == other); |
52 } | 51 } |
53 | 52 |
54 TransportConnectionId connection_id; | 53 TransportConnectionId connection_id; |
55 TransportConnectionSpecificViewId view_id; | 54 TransportConnectionSpecificViewId view_id; |
56 }; | 55 }; |
57 | 56 |
58 // Functions for converting to/from structs and transport values. | 57 // Functions for converting to/from structs and transport values. |
| 58 inline uint16_t FirstIdFromTransportId(uint32_t id) { |
| 59 return static_cast<uint16_t>((id >> 16) & 0xFFFF); |
| 60 } |
| 61 |
| 62 inline uint16_t SecondIdFromTransportId(uint32_t id) { |
| 63 return static_cast<uint16_t>(id & 0xFFFF); |
| 64 } |
| 65 |
59 inline NodeId NodeIdFromTransportId(TransportNodeId id) { | 66 inline NodeId NodeIdFromTransportId(TransportNodeId id) { |
60 return NodeId(HiWord(id), LoWord(id)); | 67 return NodeId(FirstIdFromTransportId(id), SecondIdFromTransportId(id)); |
61 } | 68 } |
62 | 69 |
63 inline TransportNodeId NodeIdToTransportId(const NodeId& id) { | 70 inline TransportNodeId NodeIdToTransportId(const NodeId& id) { |
64 return (id.connection_id << 16) | id.node_id; | 71 return (id.connection_id << 16) | id.node_id; |
65 } | 72 } |
66 | 73 |
67 inline ViewId ViewIdFromTransportId(TransportViewId id) { | 74 inline ViewId ViewIdFromTransportId(TransportViewId id) { |
68 return ViewId(HiWord(id), LoWord(id)); | 75 return ViewId(FirstIdFromTransportId(id), SecondIdFromTransportId(id)); |
69 } | 76 } |
70 | 77 |
71 inline TransportViewId ViewIdToTransportId(const ViewId& id) { | 78 inline TransportViewId ViewIdToTransportId(const ViewId& id) { |
72 return (id.connection_id << 16) | id.view_id; | 79 return (id.connection_id << 16) | id.view_id; |
73 } | 80 } |
74 | 81 |
75 } // namespace view_manager | 82 } // namespace view_manager |
76 } // namespace services | 83 } // namespace services |
77 } // namespace mojo | 84 } // namespace mojo |
78 | 85 |
79 #endif // MOJO_SERVICES_VIEW_MANAGER_IDS_H_ | 86 #endif // MOJO_SERVICES_VIEW_MANAGER_IDS_H_ |
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