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Unified Diff: chrome/browser/media/router/browser_presentation_connection_proxy.h

Issue 2471573005: [Presentation API] (5th) (1-UA) integrate controller and receiver side for 1-UA messaging (Closed)
Patch Set: add unit test for browser_presentation_connection_proxy Created 3 years, 11 months ago
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Index: chrome/browser/media/router/browser_presentation_connection_proxy.h
diff --git a/chrome/browser/media/router/browser_presentation_connection_proxy.h b/chrome/browser/media/router/browser_presentation_connection_proxy.h
new file mode 100644
index 0000000000000000000000000000000000000000..7fb739074180fbe91fbd9da8df80a0df07963f24
--- /dev/null
+++ b/chrome/browser/media/router/browser_presentation_connection_proxy.h
@@ -0,0 +1,74 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_MEDIA_ROUTER_BROWSER_PRESENTATION_CONNECTION_PROXY_H_
+#define CHROME_BROWSER_MEDIA_ROUTER_BROWSER_PRESENTATION_CONNECTION_PROXY_H_
+
+#include "content/public/browser/presentation_service_delegate.h"
+#include "content/public/common/presentation_session.h"
+#include "mojo/public/cpp/bindings/binding.h"
+
+namespace media_router {
+
+class MediaRouter;
+class MediaRoute;
+
+// This class represents a browser side PresentationConnection. It connects with
+// PresentationConnection owned by a render frame to enable message exchange.
+// Message received on this class is further routed to Media Router. State of
+// browser side PresentationConnection is always 'connected'.
+//
+// |SetTargetConnection| sets |target_connection_| to mojo handle of
+// PresentationConnection object owned a render frame, and transits state of
+// |target_connection_| to 'connected'.
+//
+// Send message from render frame to media router:
+// PresentationConnection::sendString();
+// -> PresentationDispatcher::DoSendMessage();
+// -> PresentationConnectionProxy::SendSessionMessage();
+// --> (mojo call to browser side PresentationConnection)
+// -> BrowserPresentationConnectionProxy::OnMessage();
+// -> MediaRouter::SendRouteMessage();
+//
+// Instance of this class is only created for remotely rendered presentations.
+// It is owned by PresentationFrame. When PresentationFrame gets destroyed or
+// |route_| is closed or terminated, instance of this class will be destroyed.
+
+class BrowserPresentationConnectionProxy
+ : public NON_EXPORTED_BASE(blink::mojom::PresentationConnection) {
+ public:
+ using OnMessageCallback = base::Callback<void(bool)>;
+
+ BrowserPresentationConnectionProxy(MediaRouter* router,
+ const MediaRoute* route);
+ ~BrowserPresentationConnectionProxy() override;
+
+ // Binds instance of this class with |receiver_connection_request|.
+ void Bind(
imcheng 2017/01/31 01:53:24 Maybe name this BindToRequest or something similar
zhaobin 2017/01/31 18:44:15 Done.
+ blink::mojom::PresentationConnectionRequest receiver_connection_request);
+
+ // Sets |target_connection_ptr_| to |controller_connection_ptr|. Should be
+ // called only once.
+ void BindControllerConnection(
+ blink::mojom::PresentationConnectionPtr controller_connection_ptr);
+
+ // blink::mojom::PresentationConnection implementation
+ void OnMessage(blink::mojom::ConnectionMessagePtr message,
+ const OnMessageCallback& on_message_callback) override;
+ void DidChangeState(
+ blink::mojom::PresentationConnectionState state) override {}
imcheng 2017/01/31 01:53:24 Add a TODO to implement this, or a comment why thi
zhaobin 2017/01/31 18:44:15 Done.
+
+ private:
+ // |router_| not owned by this class.
+ MediaRouter* router_;
imcheng 2017/01/31 01:53:25 MediaRouter* const
zhaobin 2017/01/31 18:44:15 Done.
+ // |route_| not owned by this class.
+ const MediaRoute* route_;
imcheng 2017/01/31 01:53:25 Who owns the MediaRoute? Since it is just a data o
zhaobin 2017/01/31 18:44:15 Done.
+
+ mojo::Binding<blink::mojom::PresentationConnection> binding_;
+ blink::mojom::PresentationConnectionPtr target_connection_ptr_;
+};
+
+} // namespace media_router
+
+#endif // CHROME_BROWSER_MEDIA_ROUTER_BROWSER_PRESENTATION_CONNECTION_PROXY_H_

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