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1 // Copyright 2017 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 CHROME_BROWSER_MEDIA_ROUTER_BROWSER_PRESENTATION_CONNECTION_PROXY_H_ | |
6 #define CHROME_BROWSER_MEDIA_ROUTER_BROWSER_PRESENTATION_CONNECTION_PROXY_H_ | |
7 | |
8 #include "chrome/browser/media/router/media_route.h" | |
9 #include "content/public/browser/presentation_service_delegate.h" | |
10 #include "content/public/common/presentation_session.h" | |
11 #include "mojo/public/cpp/bindings/binding.h" | |
12 | |
13 namespace media_router { | |
14 | |
15 class MediaRouter; | |
16 | |
17 // This class represents a browser side PresentationConnection. It connects with | |
18 // PresentationConnection owned by a render frame to enable message exchange. | |
19 // Message received on this class is further routed to Media Router. State of | |
20 // browser side PresentationConnection is always 'connected'. | |
21 // | |
22 // |SetTargetConnection| sets |target_connection_| to mojo handle of | |
23 // PresentationConnection object owned a render frame, and transits state of | |
24 // |target_connection_| to 'connected'. | |
25 // | |
26 // Send message from render frame to media router: | |
27 // PresentationConnection::sendString(); | |
28 // -> PresentationDispatcher::DoSendMessage(); | |
29 // -> PresentationConnectionProxy::SendSessionMessage(); | |
30 // --> (mojo call to browser side PresentationConnection) | |
31 // -> BrowserPresentationConnectionProxy::OnMessage(); | |
32 // -> MediaRouter::SendRouteMessage(); | |
33 // | |
34 // Instance of this class is only created for remotely rendered presentations. | |
35 // It is owned by PresentationFrame. When PresentationFrame gets destroyed or | |
36 // |route_| is closed or terminated, instance of this class will be destroyed. | |
37 | |
38 class BrowserPresentationConnectionProxy | |
39 : public NON_EXPORTED_BASE(blink::mojom::PresentationConnection) { | |
40 public: | |
41 using OnMessageCallback = base::Callback<void(bool)>; | |
42 | |
43 // |router|: media router instance not owned by this class; | |
44 // |route_id|: underlying media route. |target_connection_ptr_| sends message | |
45 // to media route with |route_id|; | |
46 // |receiver_connection_request|: mojo interface request to be bind with this | |
47 // object; | |
48 // |controller_connection_ptr|: mojo interface ptr of controlling frame's | |
49 // connection proxy object. | |
50 BrowserPresentationConnectionProxy( | |
51 MediaRouter* router, | |
52 const MediaRoute::Id& route_id, | |
53 blink::mojom::PresentationConnectionRequest receiver_connection_request, | |
54 blink::mojom::PresentationConnectionPtr controller_connection_ptr); | |
55 ~BrowserPresentationConnectionProxy() override; | |
56 | |
57 // blink::mojom::PresentationConnection implementation | |
58 void OnMessage(blink::mojom::ConnectionMessagePtr message, | |
59 const OnMessageCallback& on_message_callback) override; | |
60 | |
61 // Underlying media route is always connected. Media route class does not | |
62 // support state change. | |
63 void DidChangeState(content::PresentationConnectionState state) override {} | |
64 | |
65 private: | |
66 // |router_| not owned by this class. | |
67 MediaRouter* const router_; | |
68 const MediaRoute::Id route_id_; | |
69 | |
70 mojo::Binding<blink::mojom::PresentationConnection> binding_; | |
71 blink::mojom::PresentationConnectionPtr target_connection_ptr_; | |
72 }; | |
73 | |
74 } // namespace media_router | |
75 | |
76 #endif // CHROME_BROWSER_MEDIA_ROUTER_BROWSER_PRESENTATION_CONNECTION_PROXY_H_ | |
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