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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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