[Presentation API] 1-UA: notify receiver page when receiver connection becomes available (blink sid…

content/renderer/presentation/presentation_dispatcher.h

 // Copyright 2015 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 CONTENT_RENDERER_PRESENTATION_PRESENTATION_DISPATCHER_H_
 #define CONTENT_RENDERER_PRESENTATION_PRESENTATION_DISPATCHER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <queue>
 
 #include "base/compiler_specific.h"
 #include "base/id_map.h"
 #include "base/macros.h"
 #include "content/common/content_export.h"
 #include "content/public/renderer/render_frame_observer.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "third_party/WebKit/public/platform/modules/presentation/WebPresentationClient.h"
 #include "third_party/WebKit/public/platform/modules/presentation/presentation.mojom.h"
 
 namespace blink {
 class WebPresentationAvailabilityObserver;
+class WebPresentationReceiver;
 class WebString;
 template <typename T>
 class WebVector;
 }  // namespace blink
 
 namespace content {
 
 // PresentationDispatcher is a delegate for Presentation API messages used by
 // Blink. It forwards the calls to the Mojo PresentationService.
 class CONTENT_EXPORT PresentationDispatcher
@@ skipping 20 matching lines @@
       const blink::WebString& message);
   static SendMessageRequest* CreateSendBinaryMessageRequest(
       const blink::WebString& presentationUrl,
       const blink::WebString& presentationId,
       blink::mojom::PresentationMessageType type,
       const uint8_t* data,
       size_t length);
 
   // WebPresentationClient implementation.
   void setController(blink::WebPresentationController* controller) override;
+  void setReceiver(blink::WebPresentationReceiver*) override;
+
   void startSession(
       const blink::WebVector<blink::WebString>& presentationUrls,
       blink::WebPresentationConnectionClientCallbacks* callback) override;
   void joinSession(
       const blink::WebVector<blink::WebString>& presentationUrls,
       const blink::WebString& presentationId,
       blink::WebPresentationConnectionClientCallbacks* callback) override;
   void sendString(const blink::WebString& presentationUrl,
                   const blink::WebString& presentationId,
                   const blink::WebString& message) override;
@@ skipping 36 matching lines @@
   void OnSessionMessagesReceived(
       blink::mojom::PresentationSessionInfoPtr session_info,
       std::vector<blink::mojom::SessionMessagePtr> messages) override;
   void OnDefaultSessionStarted(
       blink::mojom::PresentationSessionInfoPtr session_info) override;
 
   void OnSessionCreated(
       blink::WebPresentationConnectionClientCallbacks* callback,
       blink::mojom::PresentationSessionInfoPtr session_info,
       blink::mojom::PresentationErrorPtr error);
+  void OnReceiverConnectionAvailable(
+      blink::mojom::PresentationSessionInfoPtr) override;
 
   // Call to PresentationService to send the message in |request|.
   // |session_info| and |message| of |reuqest| will be consumed.
   // |HandleSendMessageRequests| will be invoked after the send is attempted.
   void DoSendMessage(SendMessageRequest* request);
   void HandleSendMessageRequests(bool success);
 
   void ConnectToPresentationServiceIfNeeded();
 
   void UpdateListeningState();
 
   // Used as a weak reference. Can be null since lifetime is bound to the frame.
   blink::WebPresentationController* controller_;
+  blink::WebPresentationReceiver* m_receiver;

[mlamouri (slow - plz ping), 2016/09/15 10:49:39]

style: `receiver_`

[zhaobin, 2016/09/15 18:56:03]

Done.

   blink::mojom::PresentationServicePtr presentation_service_;
   mojo::Binding<blink::mojom::PresentationServiceClient> binding_;
 
   // Message requests are queued here and only one message at a time is sent
   // over mojo channel.
   using MessageRequestQueue = std::queue<std::unique_ptr<SendMessageRequest>>;
   MessageRequestQueue message_request_queue_;
 
   enum class ListeningState {
     INACTIVE,
@@ skipping 24 matching lines @@
   // Updates the listening state of availability for |status| and notifies the
   // client.
   void UpdateListeningState(AvailabilityStatus* status);
 
   DISALLOW_COPY_AND_ASSIGN(PresentationDispatcher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PRESENTATION_PRESENTATION_DISPATCHER_H_