| // 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_PUBLIC_BROWSER_PRESENTATION_SERVICE_DELEGATE_H_ |
| #define CONTENT_PUBLIC_BROWSER_PRESENTATION_SERVICE_DELEGATE_H_ |
| |
| #include <map> |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "base/callback.h" |
| #include "content/common/content_export.h" |
| #include "media/base/flinging_controller.h" |
| #include "third_party/blink/public/mojom/presentation/presentation.mojom.h" |
| |
| namespace content { |
| |
| struct PresentationRequest; |
| class PresentationScreenAvailabilityListener; |
| |
| using PresentationConnectionCallback = |
| base::OnceCallback<void(blink::mojom::PresentationConnectionResultPtr)>; |
| using PresentationConnectionErrorCallback = |
| base::OnceCallback<void(const blink::mojom::PresentationError&)>; |
| using DefaultPresentationConnectionCallback = base::RepeatingCallback<void( |
| blink::mojom::PresentationConnectionResultPtr)>; |
| |
| struct PresentationConnectionStateChangeInfo { |
| explicit PresentationConnectionStateChangeInfo( |
| blink::mojom::PresentationConnectionState state) |
| : state(state), |
| close_reason( |
| blink::mojom::PresentationConnectionCloseReason::CONNECTION_ERROR) { |
| } |
| ~PresentationConnectionStateChangeInfo() = default; |
| |
| blink::mojom::PresentationConnectionState state; |
| |
| // |close_reason| and |messsage| are only used for state change to CLOSED. |
| blink::mojom::PresentationConnectionCloseReason close_reason; |
| std::string message; |
| }; |
| |
| using PresentationConnectionStateChangedCallback = |
| base::RepeatingCallback<void(const PresentationConnectionStateChangeInfo&)>; |
| |
| using PresentationConnectionPtr = blink::mojom::PresentationConnectionPtr; |
| using PresentationConnectionRequest = |
| blink::mojom::PresentationConnectionRequest; |
| |
| using ReceiverConnectionAvailableCallback = |
| base::RepeatingCallback<void(blink::mojom::PresentationInfoPtr, |
| PresentationConnectionPtr, |
| PresentationConnectionRequest)>; |
| |
| // Base class for ControllerPresentationServiceDelegate and |
| // ReceiverPresentationServiceDelegate. |
| class CONTENT_EXPORT PresentationServiceDelegate { |
| public: |
| // Observer interface to listen for changes to PresentationServiceDelegate. |
| class CONTENT_EXPORT Observer { |
| public: |
| // Called when the PresentationServiceDelegate is being destroyed. |
| virtual void OnDelegateDestroyed() = 0; |
| |
| protected: |
| virtual ~Observer() {} |
| }; |
| |
| virtual ~PresentationServiceDelegate() {} |
| |
| // Registers an observer associated with frame with |render_process_id| |
| // and |render_frame_id| with this class to listen for updates. |
| // This class does not own the observer. |
| // It is an error to add an observer if there is already an observer for that |
| // frame. |
| virtual void AddObserver(int render_process_id, |
| int render_frame_id, |
| Observer* observer) = 0; |
| |
| // Unregisters the observer associated with the frame with |render_process_id| |
| // and |render_frame_id|. |
| // The observer will no longer receive updates. |
| virtual void RemoveObserver(int render_process_id, int render_frame_id) = 0; |
| |
| // Resets the presentation state for the frame given by |render_process_id| |
| // and |render_frame_id|. |
| // This unregisters all screen availability associated with the given frame, |
| // and clears the default presentation URL for the frame. |
| virtual void Reset(int render_process_id, int render_frame_id) = 0; |
| }; |
| |
| // An interface implemented by embedders to handle Presentation API calls |
| // forwarded from PresentationServiceImpl. |
| class CONTENT_EXPORT ControllerPresentationServiceDelegate |
| : public PresentationServiceDelegate { |
| public: |
| using SendMessageCallback = base::OnceCallback<void(bool)>; |
| |
| // Registers |listener| to continuously listen for |
| // availability updates for a presentation URL, originated from the frame |
| // given by |render_process_id| and |render_frame_id|. |
| // This class does not own |listener|. |
| // Returns true on success. |
| // This call will return false if a listener with the same presentation URL |
| // from the same frame is already registered. |
| virtual bool AddScreenAvailabilityListener( |
| int render_process_id, |
| int render_frame_id, |
| PresentationScreenAvailabilityListener* listener) = 0; |
| |
| // Unregisters |listener| originated from the frame given by |
| // |render_process_id| and |render_frame_id| from this class. The listener |
| // will no longer receive availability updates. |
| virtual void RemoveScreenAvailabilityListener( |
| int render_process_id, |
| int render_frame_id, |
| PresentationScreenAvailabilityListener* listener) = 0; |
| |
| // Sets the default presentation URLs represented by |request|. When the |
| // default presentation is started on this frame, |callback| will be invoked |
| // with the corresponding blink::mojom::PresentationInfo object. |
| // If |request.presentation_urls| is empty, the default presentation URLs will |
| // be cleared and the previously registered callback (if any) will be removed. |
| virtual void SetDefaultPresentationUrls( |
| const content::PresentationRequest& request, |
| DefaultPresentationConnectionCallback callback) = 0; |
| |
| // Starts a new presentation. |
| // |request.presentation_urls| contains a list of possible URLs for the |
| // presentation. Typically, the embedder will allow the user to select a |
| // screen to show one of the URLs. |
| // |request|: The request to start a presentation. |
| // |success_cb|: Invoked with presentation info, if presentation started |
| // successfully. |
| // |error_cb|: Invoked with error reason, if presentation did not |
| // start. |
| virtual void StartPresentation( |
| const content::PresentationRequest& request, |
| PresentationConnectionCallback success_cb, |
| PresentationConnectionErrorCallback error_cb) = 0; |
| |
| // Reconnects to an existing presentation. Unlike StartPresentation(), this |
| // does not bring a screen list UI. |
| // |request|: The request to reconnect to a presentation. |
| // |presentation_id|: The ID of the presentation to reconnect. |
| // |success_cb|: Invoked with presentation info, if presentation reconnected |
| // successfully. |
| // |error_cb|: Invoked with error reason, if reconnection failed. |
| virtual void ReconnectPresentation( |
| const content::PresentationRequest& request, |
| const std::string& presentation_id, |
| PresentationConnectionCallback success_cb, |
| PresentationConnectionErrorCallback error_cb) = 0; |
| |
| // Closes an existing presentation connection. |
| // |render_process_id|, |render_frame_id|: ID for originating frame. |
| // |presentation_id|: The ID of the presentation to close. |
| virtual void CloseConnection(int render_process_id, |
| int render_frame_id, |
| const std::string& presentation_id) = 0; |
| |
| // Terminates an existing presentation. |
| // |render_process_id|, |render_frame_id|: ID for originating frame. |
| // |presentation_id|: The ID of the presentation to terminate. |
| virtual void Terminate(int render_process_id, |
| int render_frame_id, |
| const std::string& presentation_id) = 0; |
| |
| // Gets a FlingingController for a given presentation ID. |
| // |render_process_id|, |render_frame_id|: ID of originating frame. |
| // |presentation_id|: The ID of the presentation for which we want a |
| // Controller. |
| virtual std::unique_ptr<media::FlingingController> GetFlingingController( |
| int render_process_id, |
| int render_frame_id, |
| const std::string& presentation_id) = 0; |
| |
| // Continuously listen for state changes for a PresentationConnection in a |
| // frame. |
| // |render_process_id|, |render_frame_id|: ID of frame. |
| // |connection|: PresentationConnection to listen for state changes. |
| // |state_changed_cb|: Invoked with the PresentationConnection and its new |
| // state whenever there is a state change. |
| virtual void ListenForConnectionStateChange( |
| int render_process_id, |
| int render_frame_id, |
| const blink::mojom::PresentationInfo& connection, |
| const PresentationConnectionStateChangedCallback& state_changed_cb) = 0; |
| }; |
| |
| // An interface implemented by embedders to handle |
| // PresentationService calls from a presentation receiver. |
| class CONTENT_EXPORT ReceiverPresentationServiceDelegate |
| : public PresentationServiceDelegate { |
| public: |
| // Registers a callback from the embedder when an offscreeen presentation has |
| // been successfully started. |
| // |receiver_available_callback|: Invoked when successfully starting a |
| // local presentation. |
| virtual void RegisterReceiverConnectionAvailableCallback( |
| const content::ReceiverConnectionAvailableCallback& |
| receiver_available_callback) = 0; |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_PUBLIC_BROWSER_PRESENTATION_SERVICE_DELEGATE_H_ |