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| |
| #ifndef MEDIA_CAPTURE_DEVICES_DISPATCHER_H |
| #define MEDIA_CAPTURE_DEVICES_DISPATCHER_H |
| |
| #include <deque> |
| #include <list> |
| #include <map> |
| |
| #include "web_contents_adapter_client.h" |
| |
| #include "base/callback.h" |
| #include "base/containers/circular_deque.h" |
| #include "base/memory/singleton.h" |
| #include "base/observer_list.h" |
| #include "content/public/browser/media_observer.h" |
| #include "content/public/browser/notification_observer.h" |
| #include "content/public/browser/notification_registrar.h" |
| #include "content/public/browser/web_contents_delegate.h" |
| |
| namespace QtWebEngineCore { |
| |
| // This singleton is used to receive updates about media events from the content |
| // layer. Based on Chrome's implementation. |
| class MediaCaptureDevicesDispatcher : public content::MediaObserver, |
| public content::NotificationObserver |
| { |
| public: |
| static MediaCaptureDevicesDispatcher *GetInstance(); |
| |
| void processMediaAccessRequest(WebContentsAdapterClient *, content::WebContents *, const content::MediaStreamRequest &, content::MediaResponseCallback); |
| |
| // Called back from our WebContentsAdapter to grant the requested permission. |
| void handleMediaAccessPermissionResponse(content::WebContents *, const QUrl &securityOrigin, WebContentsAdapterClient::MediaRequestFlags); |
| |
| private: |
| void getDefaultDevices(const std::string &audioDeviceId, const std::string &videoDeviceId, bool audio, bool video, blink::MediaStreamDevices *); |
| |
| // Overridden from content::MediaObserver: |
| void OnAudioCaptureDevicesChanged() override {} |
| void OnVideoCaptureDevicesChanged() override {} |
| void OnMediaRequestStateChanged(int render_process_id, |
| int render_frame_id, |
| int page_request_id, |
| const GURL &security_origin, |
| blink::mojom::MediaStreamType stream_type, |
| content::MediaRequestState state) override; |
| |
| void OnCreatingAudioStream(int /*render_process_id*/, int /*render_frame_id*/) override {} |
| void OnSetCapturingLinkSecured(int /*render_process_id*/, |
| int /*render_frame_id*/, |
| int /*page_request_id*/, |
| blink::mojom::MediaStreamType /*stream_type*/, |
| bool /*is_secure*/) override {} |
| |
| friend struct base::DefaultSingletonTraits<MediaCaptureDevicesDispatcher>; |
| |
| typedef base::RepeatingCallback<void(const blink::MediaStreamDevices &devices, |
| blink::mojom::MediaStreamRequestResult result, |
| std::unique_ptr<content::MediaStreamUI> ui)> |
| RepeatingMediaResponseCallback; |
| |
| struct PendingAccessRequest { |
| PendingAccessRequest(const content::MediaStreamRequest &request, const RepeatingMediaResponseCallback &callback); |
| ~PendingAccessRequest(); |
| |
| content::MediaStreamRequest request; |
| RepeatingMediaResponseCallback callback; |
| }; |
| typedef base::circular_deque<PendingAccessRequest> RequestsQueue; |
| typedef std::map<content::WebContents *, RequestsQueue> RequestsQueues; |
| |
| MediaCaptureDevicesDispatcher(); |
| virtual ~MediaCaptureDevicesDispatcher(); |
| |
| // content::NotificationObserver implementation. |
| void Observe(int type, const content::NotificationSource &source, const content::NotificationDetails &details) override; |
| |
| // Helpers for ProcessMediaAccessRequest(). |
| void processDesktopCaptureAccessRequest(content::WebContents *, const content::MediaStreamRequest &, content::MediaResponseCallback); |
| void enqueueMediaAccessRequest(content::WebContents *, const content::MediaStreamRequest &, content::MediaResponseCallback); |
| void ProcessQueuedAccessRequest(content::WebContents *); |
| |
| // Called by the MediaObserver() functions, executed on UI thread. |
| void updateMediaRequestStateOnUIThread(int render_process_id, int render_frame_id, int page_request_id, const GURL &security_origin, |
| blink::mojom::MediaStreamType stream_type, content::MediaRequestState state); |
| |
| RequestsQueues m_pendingRequests; |
| |
| content::NotificationRegistrar m_notificationsRegistrar; |
| |
| DISALLOW_COPY_AND_ASSIGN(MediaCaptureDevicesDispatcher); |
| }; |
| |
| } // namespace QtWebEngineCore |
| |
| #endif // MEDIA_CAPTURE_DEVICES_DISPATCHER_H |