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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_VIEW_MANAGER_VIEW_TREE_HOST_CONNECTION_H_ | |
6 #define COMPONENTS_VIEW_MANAGER_VIEW_TREE_HOST_CONNECTION_H_ | |
7 | |
8 #include "base/memory/scoped_ptr.h" | |
9 #include "components/view_manager/public/interfaces/view_tree_host.mojom.h" | |
10 #include "components/view_manager/view_tree_host_delegate.h" | |
11 #include "components/view_manager/view_tree_host_impl.h" | |
12 #include "third_party/mojo/src/mojo/public/cpp/bindings/binding.h" | |
13 | |
14 namespace view_manager { | |
15 | |
16 class ConnectionManager; | |
17 class ViewTreeImpl; | |
18 | |
19 // ViewTreeHostConnection is a server-side object that encapsulates the | |
20 // connection between a client of the ViewTreeHost and its implementation. | |
21 // ViewTreeHostConnection also establishes a ClientConnection via the same | |
22 // code path as embedded views. ConnectionManager manages the lifetime of | |
23 // ViewTreeHostConnections. If a connection to the client is lost or if the | |
24 // associated root is closed, the ViewTreeHostConnection will inform the | |
25 // ConnectionManager to destroy the root and its associated view tree. | |
26 class ViewTreeHostConnection : public ViewTreeHostDelegate { | |
27 public: | |
28 ViewTreeHostConnection( | |
29 scoped_ptr<ViewTreeHostImpl> host_impl, | |
30 ConnectionManager* connection_manager); | |
31 | |
32 void set_view_tree(ViewTreeImpl* tree) { | |
33 tree_ = tree; | |
34 } | |
35 | |
36 ViewTreeHostImpl* view_tree_host() { return host_.get();} | |
37 const ViewTreeHostImpl* view_tree_host() const { return host_.get(); } | |
38 | |
39 ConnectionManager* connection_manager() { return connection_manager_; } | |
40 const ConnectionManager* connection_manager() const { | |
41 return connection_manager_; | |
42 } | |
43 | |
44 void CloseConnection(); | |
45 | |
46 protected: | |
47 ~ViewTreeHostConnection() override; | |
48 | |
49 // ViewTreeHostDelegate: | |
50 void OnDisplayInitialized() override; | |
51 void OnDisplayClosed() override; | |
52 ViewTreeImpl* GetViewTree() override; | |
53 | |
54 private: | |
55 scoped_ptr<ViewTreeHostImpl> host_; | |
56 ViewTreeImpl* tree_; | |
57 ConnectionManager* connection_manager_; | |
58 bool connection_closed_; | |
59 | |
60 DISALLOW_COPY_AND_ASSIGN(ViewTreeHostConnection); | |
61 }; | |
62 | |
63 // Live implementation of ViewTreeHostConnection. | |
64 class ViewTreeHostConnectionImpl : public ViewTreeHostConnection { | |
65 public: | |
66 ViewTreeHostConnectionImpl( | |
67 mojo::InterfaceRequest<mojo::ViewTreeHost> request, | |
68 scoped_ptr<ViewTreeHostImpl> host_impl, | |
69 mojo::ViewTreeClientPtr client, | |
70 ConnectionManager* connection_manager); | |
71 | |
72 private: | |
73 ~ViewTreeHostConnectionImpl() override; | |
74 | |
75 // ViewTreeHostDelegate: | |
76 void OnDisplayInitialized() override; | |
77 | |
78 mojo::Binding<mojo::ViewTreeHost> binding_; | |
79 mojo::ViewTreeClientPtr client_; | |
80 | |
81 DISALLOW_COPY_AND_ASSIGN(ViewTreeHostConnectionImpl); | |
82 }; | |
83 | |
84 } // namespace view_manager | |
85 | |
86 #endif // COMPONENTS_VIEW_MANAGER_VIEW_TREE_HOST_CONNECTION_H_ | |
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