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// Copyright 2019 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_BROWSER_PICTURE_IN_PICTURE_PICTURE_IN_PICTURE_SESSION_H_
#define CONTENT_BROWSER_PICTURE_IN_PICTURE_PICTURE_IN_PICTURE_SESSION_H_
#include "content/public/browser/media_player_id.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "third_party/blink/public/mojom/picture_in_picture/picture_in_picture.mojom.h"
namespace content {
class PictureInPictureServiceImpl;
class PictureInPictureWindowControllerImpl;
class WebContentsImpl;
// The PicutreInPictureSession communicates with the
// PictureInPictureWindowController and the WebContents. It is created by the
// PictureInPictureService but deletes itself. When created, the session will
// enter Picture-in-Picture and when deleted, it will automatically exit
// Picture-in-Picture unless another session became active.
// The session MUST be stopped before its dtor runs to avoid unexpected
// deletion.
class PictureInPictureSession : public blink::mojom::PictureInPictureSession {
public:
PictureInPictureSession(
PictureInPictureServiceImpl* service,
const MediaPlayerId& player_id,
const base::Optional<viz::SurfaceId>& surface_id,
const gfx::Size& natural_size,
bool show_play_pause_button,
mojo::PendingReceiver<blink::mojom::PictureInPictureSession> receiver,
mojo::PendingRemote<blink::mojom::PictureInPictureSessionObserver>
observer,
gfx::Size* window_size);
~PictureInPictureSession() override;
// blink::mojom::PictureInPictureSession interface.
void Stop(StopCallback callback) final;
void Update(uint32_t player_id,
const base::Optional<viz::SurfaceId>& surface_id,
const gfx::Size& natural_size,
bool show_play_pause_button) final;
void NotifyWindowResized(const gfx::Size& size);
// Returns the player that is currently in Picture-in-Picture. Returns nullopt
// if there are none.
const base::Optional<MediaPlayerId>& player_id() const { return player_id_; }
// Shuts down the session. Called by the window controller when the window is
// closed.
void Shutdown();
private:
PictureInPictureSession() = delete;
// Exits Picture-in-Picture, notifies the PictureInPictureWindowController of
// change of active session and deletes self.
void StopInternal(StopCallback callback);
// Called when the |receiver_| hits a connection error.
void OnConnectionError();
// Returns the WebContentsImpl associated with this Picture-in-Picture
// session. It relies on the WebContents associated with the |service_|.
WebContentsImpl* GetWebContentsImpl();
// Returns the Picture-in-Picture window controller associated with the
// session.
PictureInPictureWindowControllerImpl& GetController();
// Owns |this|.
PictureInPictureServiceImpl* service_;
mojo::Receiver<blink::mojom::PictureInPictureSession> receiver_;
base::Optional<MediaPlayerId> player_id_;
// Whether the session is currently stopping. The final stop of stopping is to
// be destroyed so once its set to true it will never be set back to false and
// the dtor will check that it's stopping.
bool is_stopping_ = false;
mojo::Remote<blink::mojom::PictureInPictureSessionObserver> observer_;
};
} // namespace content
#endif // CONTENT_BROWSER_PICTURE_IN_PICTURE_PICTURE_IN_PICTURE_SESSION_H_