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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" | 8 #include "mojo/services/public/cpp/view_manager/util.h" |
9 #include "mojo/services/public/cpp/view_manager/view_manager_types.h" | 9 #include "mojo/services/public/cpp/view_manager/view_manager_types.h" |
10 #include "mojo/services/view_manager/view_manager_export.h" | 10 #include "mojo/services/view_manager/view_manager_export.h" |
11 | 11 |
12 namespace mojo { | 12 namespace mojo { |
13 namespace view_manager { | 13 namespace view_manager { |
14 namespace service { | 14 namespace service { |
15 | 15 |
16 // Connection id reserved for the root. | 16 // Connection id reserved for the root. |
17 const TransportConnectionId kRootConnection = 0; | 17 const ConnectionSpecificId kRootConnection = 0; |
18 | 18 |
19 // Adds a bit of type safety to node ids. | 19 // Adds a bit of type safety to node ids. |
20 struct MOJO_VIEW_MANAGER_EXPORT NodeId { | 20 struct MOJO_VIEW_MANAGER_EXPORT NodeId { |
21 NodeId(TransportConnectionId connection_id, | 21 NodeId(ConnectionSpecificId connection_id, ConnectionSpecificId node_id) |
22 TransportConnectionSpecificNodeId node_id) | |
23 : connection_id(connection_id), | 22 : connection_id(connection_id), |
24 node_id(node_id) {} | 23 node_id(node_id) {} |
25 NodeId() : connection_id(0), node_id(0) {} | 24 NodeId() : connection_id(0), node_id(0) {} |
26 | 25 |
27 bool operator==(const NodeId& other) const { | 26 bool operator==(const NodeId& other) const { |
28 return other.connection_id == connection_id && | 27 return other.connection_id == connection_id && |
29 other.node_id == node_id; | 28 other.node_id == node_id; |
30 } | 29 } |
31 | 30 |
32 bool operator!=(const NodeId& other) const { | 31 bool operator!=(const NodeId& other) const { |
33 return !(*this == other); | 32 return !(*this == other); |
34 } | 33 } |
35 | 34 |
36 TransportConnectionId connection_id; | 35 ConnectionSpecificId connection_id; |
37 TransportConnectionSpecificNodeId node_id; | 36 ConnectionSpecificId node_id; |
38 }; | 37 }; |
39 | 38 |
40 // Adds a bit of type safety to view ids. | 39 // Adds a bit of type safety to view ids. |
41 struct MOJO_VIEW_MANAGER_EXPORT ViewId { | 40 struct MOJO_VIEW_MANAGER_EXPORT ViewId { |
42 ViewId(TransportConnectionId connection_id, | 41 ViewId(ConnectionSpecificId connection_id, ConnectionSpecificId view_id) |
43 TransportConnectionSpecificViewId view_id) | |
44 : connection_id(connection_id), | 42 : connection_id(connection_id), |
45 view_id(view_id) {} | 43 view_id(view_id) {} |
46 ViewId() : connection_id(0), view_id(0) {} | 44 ViewId() : connection_id(0), view_id(0) {} |
47 | 45 |
48 bool operator==(const ViewId& other) const { | 46 bool operator==(const ViewId& other) const { |
49 return other.connection_id == connection_id && | 47 return other.connection_id == connection_id && |
50 other.view_id == view_id; | 48 other.view_id == view_id; |
51 } | 49 } |
52 | 50 |
53 bool operator!=(const ViewId& other) const { | 51 bool operator!=(const ViewId& other) const { |
54 return !(*this == other); | 52 return !(*this == other); |
55 } | 53 } |
56 | 54 |
57 TransportConnectionId connection_id; | 55 ConnectionSpecificId connection_id; |
58 TransportConnectionSpecificViewId view_id; | 56 ConnectionSpecificId view_id; |
59 }; | 57 }; |
60 | 58 |
61 // Functions for converting to/from structs and transport values. | 59 // Functions for converting to/from structs and transport values. |
62 inline NodeId NodeIdFromTransportId(TransportNodeId id) { | 60 inline NodeId NodeIdFromTransportId(Id id) { |
63 return NodeId(HiWord(id), LoWord(id)); | 61 return NodeId(HiWord(id), LoWord(id)); |
64 } | 62 } |
65 | 63 |
66 inline TransportNodeId NodeIdToTransportId(const NodeId& id) { | 64 inline Id NodeIdToTransportId(const NodeId& id) { |
67 return (id.connection_id << 16) | id.node_id; | 65 return (id.connection_id << 16) | id.node_id; |
68 } | 66 } |
69 | 67 |
70 inline ViewId ViewIdFromTransportId(TransportViewId id) { | 68 inline ViewId ViewIdFromTransportId(Id id) { |
71 return ViewId(HiWord(id), LoWord(id)); | 69 return ViewId(HiWord(id), LoWord(id)); |
72 } | 70 } |
73 | 71 |
74 inline TransportViewId ViewIdToTransportId(const ViewId& id) { | 72 inline Id ViewIdToTransportId(const ViewId& id) { |
75 return (id.connection_id << 16) | id.view_id; | 73 return (id.connection_id << 16) | id.view_id; |
76 } | 74 } |
77 | 75 |
78 inline NodeId RootNodeId() { | 76 inline NodeId RootNodeId() { |
79 return NodeId(kRootConnection, 1); | 77 return NodeId(kRootConnection, 1); |
80 } | 78 } |
81 | 79 |
82 // Returns a NodeId that is reserved to indicate no node. That is, no node will | 80 // Returns a NodeId that is reserved to indicate no node. That is, no node will |
83 // ever be created with this id. | 81 // ever be created with this id. |
84 inline NodeId InvalidNodeId() { | 82 inline NodeId InvalidNodeId() { |
85 return NodeId(kRootConnection, 0); | 83 return NodeId(kRootConnection, 0); |
86 } | 84 } |
87 | 85 |
88 } // namespace service | 86 } // namespace service |
89 } // namespace view_manager | 87 } // namespace view_manager |
90 } // namespace mojo | 88 } // namespace mojo |
91 | 89 |
92 #endif // MOJO_SERVICES_VIEW_MANAGER_IDS_H_ | 90 #endif // MOJO_SERVICES_VIEW_MANAGER_IDS_H_ |
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