chromium/content/browser/presentation/presentation_service_impl.h

// Copyright 2015 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_PRESENTATION_PRESENTATION_SERVICE_IMPL_H_
#define CONTENT_BROWSER_PRESENTATION_PRESENTATION_SERVICE_IMPL_H_

#include <map>
#include <memory>
#include <string>
#include <unordered_map>
#include <vector>

#include "base/functional/callback.h"
#include "base/gtest_prod_util.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "content/common/content_export.h"
#include "content/public/browser/navigation_details.h"
#include "content/public/browser/presentation_screen_availability_listener.h"
#include "content/public/browser/presentation_service_delegate.h"
#include "content/public/browser/web_contents_observer.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "third_party/blink/public/mojom/presentation/presentation.mojom.h"
#include "url/gurl.h"

namespace content {

class RenderFrameHost;

// Implementation of Mojo PresentationService.
// It handles Presentation API requests coming from Blink / renderer process
// and delegates the requests to the embedder's media router via
// PresentationServiceDelegate.
// An instance of this class tied to a RenderFrameHost and listens to events
// related to the RFH via implementing WebContentsObserver.
// This class is instantiated on-demand via Mojo's ConnectToRemoteService
// from the renderer when the first presentation API request is handled.
// This class currently handles requests from both controller and receiver
// frames. The sequence of calls from a controller looks like the following:
//   Create()
//   SetClient()
//   StartPresentation()
//   ...
// TODO(crbug.com/41336031): Split the controller and receiver logic into
// separate classes so that each is easier to reason about.
class CONTENT_EXPORT PresentationServiceImpl
    : public blink::mojom::PresentationService,
      public WebContentsObserver,
      public PresentationServiceDelegate::Observer { … };

}  // namespace content

#endif  // CONTENT_BROWSER_PRESENTATION_PRESENTATION_SERVICE_IMPL_H_