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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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