chromium/content/browser/picture_in_picture/video_picture_in_picture_window_controller_impl.h

// Copyright 2018 The Chromium Authors
// 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_VIDEO_PICTURE_IN_PICTURE_WINDOW_CONTROLLER_IMPL_H_
#define CONTENT_BROWSER_PICTURE_IN_PICTURE_VIDEO_PICTURE_IN_PICTURE_WINDOW_CONTROLLER_IMPL_H_

#include <map>
#include <set>

#include "components/viz/common/surfaces/parent_local_surface_id_allocator.h"
#include "content/common/content_export.h"
#include "content/public/browser/media_player_id.h"
#include "content/public/browser/video_picture_in_picture_window_controller.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/web_contents_user_data.h"
#include "media/mojo/mojom/media_player.mojom.h"
#include "mojo/public/cpp/bindings/pending_associated_remote.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "services/media_session/public/mojom/media_session.mojom.h"
#include "third_party/blink/public/mojom/picture_in_picture/picture_in_picture.mojom.h"

namespace content {

class PictureInPictureServiceImpl;
class PictureInPictureSession;
class WebContents;
class WebContentsImpl;
enum class PictureInPictureResult;

// VideoPictureInPictureWindowControllerImpl is the corner stone of the video
// Picture-in-Picture feature in the //content layer. It handles the session
// creation requests (sent by the PictureInPictureServiceImpl), owns the session
// object and therefore handles its lifetime, and communicate with the rest of
// the browser. Requests to the WebContents are sent by the controller and it
// gets notified when the browser needs it to update the Picture-in-Picture
// session.
// The VideoPictureInPictureWindowControllerImpl is managing Picture-in-Picture
// at a WebContents level. If multiple calls request a Picture-in-Picture
// session either in the same frame or in different frames, the controller will
// handle creating the new session, stopping the current one and making sure the
// window is kept around when possible.
class CONTENT_EXPORT VideoPictureInPictureWindowControllerImpl
    : public VideoPictureInPictureWindowController,
      public WebContentsUserData<VideoPictureInPictureWindowControllerImpl>,
      public WebContentsObserver { … };

}  // namespace content

#endif  // CONTENT_BROWSER_PICTURE_IN_PICTURE_VIDEO_PICTURE_IN_PICTURE_WINDOW_CONTROLLER_IMPL_H_