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Side by Side Diff: components/mus/ids.h

Issue 1344573002: Mandoline: Rename components/view_manager to components/mus (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebased Created 5 years, 3 months ago
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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 COMPONENTS_VIEW_MANAGER_IDS_H_ 5 #ifndef COMPONENTS_MUS_IDS_H_
6 #define COMPONENTS_VIEW_MANAGER_IDS_H_ 6 #define COMPONENTS_MUS_IDS_H_
7 7
8 #include "components/view_manager/public/cpp/types.h" 8 #include "components/mus/public/cpp/types.h"
9 #include "components/view_manager/public/cpp/util.h" 9 #include "components/mus/public/cpp/util.h"
10 10
11 namespace view_manager { 11 namespace view_manager {
12 12
13 // Connection id is used to indicate no connection. That is, no ViewTreeImpl 13 // Connection id is used to indicate no connection. That is, no ViewTreeImpl
14 // ever gets this id. 14 // ever gets this id.
15 const mojo::ConnectionSpecificId kInvalidConnectionId = 0; 15 const mojo::ConnectionSpecificId kInvalidConnectionId = 0;
16 16
17 // Adds a bit of type safety to view ids. 17 // Adds a bit of type safety to view ids.
18 struct ViewId { 18 struct ViewId {
19 ViewId(mojo::ConnectionSpecificId connection_id, 19 ViewId(mojo::ConnectionSpecificId connection_id,
20 mojo::ConnectionSpecificId view_id) 20 mojo::ConnectionSpecificId view_id)
21 : connection_id(connection_id), view_id(view_id) {} 21 : connection_id(connection_id), view_id(view_id) {}
22 ViewId() : connection_id(0), view_id(0) {} 22 ViewId() : connection_id(0), view_id(0) {}
23 23
24 bool operator==(const ViewId& other) const { 24 bool operator==(const ViewId& other) const {
25 return other.connection_id == connection_id && 25 return other.connection_id == connection_id && other.view_id == view_id;
26 other.view_id == view_id;
27 } 26 }
28 27
29 bool operator!=(const ViewId& other) const { 28 bool operator!=(const ViewId& other) const { return !(*this == other); }
30 return !(*this == other);
31 }
32 29
33 mojo::ConnectionSpecificId connection_id; 30 mojo::ConnectionSpecificId connection_id;
34 mojo::ConnectionSpecificId view_id; 31 mojo::ConnectionSpecificId view_id;
35 }; 32 };
36 33
37 inline ViewId ViewIdFromTransportId(mojo::Id id) { 34 inline ViewId ViewIdFromTransportId(mojo::Id id) {
38 return ViewId(mojo::HiWord(id), mojo::LoWord(id)); 35 return ViewId(mojo::HiWord(id), mojo::LoWord(id));
39 } 36 }
40 37
41 inline mojo::Id ViewIdToTransportId(const ViewId& id) { 38 inline mojo::Id ViewIdToTransportId(const ViewId& id) {
42 return (id.connection_id << 16) | id.view_id; 39 return (id.connection_id << 16) | id.view_id;
43 } 40 }
44 41
45 // Returns a ViewId that is reserved to indicate no view. That is, no view will 42 // Returns a ViewId that is reserved to indicate no view. That is, no view will
46 // ever be created with this id. 43 // ever be created with this id.
47 inline ViewId InvalidViewId() { 44 inline ViewId InvalidViewId() {
48 return ViewId(kInvalidConnectionId, 0); 45 return ViewId(kInvalidConnectionId, 0);
49 } 46 }
50 47
51 // Returns a root view id with a given index offset. 48 // Returns a root view id with a given index offset.
52 inline ViewId RootViewId(uint16_t index) { 49 inline ViewId RootViewId(uint16_t index) {
53 return ViewId(kInvalidConnectionId, 2 + index); 50 return ViewId(kInvalidConnectionId, 2 + index);
54 } 51 }
55 52
56 } // namespace view_manager 53 } // namespace view_manager
57 54
58 #endif // COMPONENTS_VIEW_MANAGER_IDS_H_ 55 #endif // COMPONENTS_MUS_IDS_H_
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