| // 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 "base/compiler_specific.h" |
| #include "base/memory/linked_ptr.h" |
| #include "content/common/content_export.h" |
| #include "content/common/presentation/presentation_service.mojom.h" |
| #include "content/public/renderer/render_frame_observer.h" |
| #include "third_party/WebKit/public/platform/modules/presentation/WebPresentationClient.h" |
| |
| namespace blink { |
| class WebString; |
| } // 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 |
| : public RenderFrameObserver, |
| public NON_EXPORTED_BASE(blink::WebPresentationClient), |
| public NON_EXPORTED_BASE(presentation::PresentationServiceClient) { |
| public: |
| explicit PresentationDispatcher(RenderFrame* render_frame); |
| ~PresentationDispatcher() override; |
| |
| private: |
| // WebPresentationClient implementation. |
| virtual void setController( |
| blink::WebPresentationController* controller); |
| virtual void updateAvailableChangeWatched(bool watched); |
| virtual void startSession( |
| const blink::WebString& presentationUrl, |
| const blink::WebString& presentationId, |
| blink::WebPresentationSessionClientCallbacks* callback); |
| virtual void joinSession( |
| const blink::WebString& presentationUrl, |
| const blink::WebString& presentationId, |
| blink::WebPresentationSessionClientCallbacks* callback); |
| virtual void sendString( |
| const blink::WebString& presentationUrl, |
| const blink::WebString& presentationId, |
| const blink::WebString& message); |
| virtual void sendArrayBuffer( |
| const blink::WebString& presentationUrl, |
| const blink::WebString& presentationId, |
| const uint8* data, |
| size_t length); |
| virtual void closeSession( |
| const blink::WebString& presentationUrl, |
| const blink::WebString& presentationId); |
| |
| // RenderFrameObserver implementation. |
| void DidChangeDefaultPresentation() override; |
| void DidCommitProvisionalLoad( |
| bool is_new_navigation, |
| bool is_same_page_navigation) override; |
| |
| // presentation::PresentationServiceClient |
| void OnScreenAvailabilityUpdated(bool available) override; |
| |
| void OnSessionCreated( |
| blink::WebPresentationSessionClientCallbacks* callback, |
| presentation::PresentationSessionInfoPtr session_info, |
| presentation::PresentationErrorPtr error); |
| void OnDefaultSessionStarted( |
| presentation::PresentationSessionInfoPtr session_info); |
| void OnSessionStateChange( |
| presentation::PresentationSessionInfoPtr session_info, |
| presentation::PresentationSessionState session_state); |
| void OnSessionMessagesReceived( |
| mojo::Array<presentation::SessionMessagePtr> messages); |
| void DoSendMessage(const presentation::SessionMessage& session_message); |
| void HandleSendMessageRequests(bool success); |
| |
| void ConnectToPresentationServiceIfNeeded(); |
| |
| // Used as a weak reference. Can be null since lifetime is bound to the frame. |
| blink::WebPresentationController* controller_; |
| presentation::PresentationServicePtr presentation_service_; |
| mojo::Binding<presentation::PresentationServiceClient> binding_; |
| |
| // Message requests are queued here and only one message at a time is sent |
| // over mojo channel. |
| using MessageRequestQueue = |
| std::queue<linked_ptr<presentation::SessionMessage>>; |
| MessageRequestQueue message_request_queue_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PresentationDispatcher); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_PRESENTATION_PRESENTATION_DISPATCHER_H_ |