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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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