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1 // Copyright 2015 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 COMPONENTS_MUS_WS_OPERATION_H_ | |
6 #define COMPONENTS_MUS_WS_OPERATION_H_ | |
7 | |
8 #include <set> | |
9 | |
10 #include "base/macros.h" | |
11 #include "components/mus/common/types.h" | |
12 | |
13 namespace mus { | |
14 namespace ws { | |
15 | |
16 class WindowServer; | |
17 class WindowTree; | |
18 | |
19 enum class OperationType { | |
20 NONE, | |
21 ADD_TRANSIENT_WINDOW, | |
22 ADD_WINDOW, | |
23 DELETE_WINDOW, | |
24 EMBED, | |
25 RELEASE_CAPTURE, | |
26 REMOVE_TRANSIENT_WINDOW_FROM_PARENT, | |
27 REMOVE_WINDOW_FROM_PARENT, | |
28 REORDER_WINDOW, | |
29 SET_CAPTURE, | |
30 SET_FOCUS, | |
31 SET_WINDOW_BOUNDS, | |
32 SET_WINDOW_OPACITY, | |
33 SET_WINDOW_PREDEFINED_CURSOR, | |
34 SET_WINDOW_PROPERTY, | |
35 SET_WINDOW_VISIBILITY, | |
36 }; | |
37 | |
38 // This class tracks the currently pending client-initiated operation. | |
39 // This is typically used to suppress superfluous notifications generated | |
40 // by suboperations in the window server. | |
41 class Operation { | |
42 public: | |
43 Operation(WindowTree* tree, | |
44 WindowServer* window_server, | |
45 OperationType operation_type); | |
46 ~Operation(); | |
47 | |
48 ClientSpecificId source_tree_id() const { return source_tree_id_; } | |
49 | |
50 const OperationType& type() const { return operation_type_; } | |
51 | |
52 // Marks the tree with the specified id as having been sent a message | |
53 // during the course of |this| operation. | |
54 void MarkTreeAsMessaged(ClientSpecificId tree_id) { | |
55 message_ids_.insert(tree_id); | |
56 } | |
57 | |
58 // Returns true if MarkTreeAsMessaged(tree_id) was invoked. | |
59 bool DidMessageTree(ClientSpecificId tree_id) const { | |
60 return message_ids_.count(tree_id) > 0; | |
61 } | |
62 | |
63 private: | |
64 WindowServer* const window_server_; | |
65 const ClientSpecificId source_tree_id_; | |
66 const OperationType operation_type_; | |
67 | |
68 // See description of MarkTreeAsMessaged/DidMessageTree. | |
69 std::set<ClientSpecificId> message_ids_; | |
70 | |
71 DISALLOW_COPY_AND_ASSIGN(Operation); | |
72 }; | |
73 | |
74 } // namespace ws | |
75 } // namespace mus | |
76 | |
77 #endif // COMPONENTS_MUS_WS_OPERATION_H_ | |
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