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// 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 CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTER_BASE_H_
#define CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTER_BASE_H_

#include <set>

#include "base/callback_list.h"
#include "base/containers/scoped_ptr_hash_map.h"
#include "base/gtest_prod_util.h"
#include "base/macros.h"
#include "base/threading/thread_checker.h"
#include "chrome/browser/media/router/media_router.h"

class Profile;

namespace media_router {

class MediaRouterBase : public MediaRouter {
 public:
  MediaRouterBase();
  ~MediaRouterBase() override;

  scoped_ptr<PresentationConnectionStateSubscription>
  AddPresentationConnectionStateChangedCallback(
      const MediaRoute::Id& route_id,
      const content::PresentationConnectionStateChangedCallback& callback)
      override;

  // Called when the off the record (incognito) profile for this instance is
  // being shut down.  This will terminate all off the record media routes.
  void OnOffTheRecordProfileShutdown() override;

 protected:
  FRIEND_TEST_ALL_PREFIXES(MediaRouterMojoImplTest,
                           PresentationConnectionStateChangedCallback);
  FRIEND_TEST_ALL_PREFIXES(MediaRouterMojoImplTest,
                           PresentationConnectionStateChangedCallbackRemoved);

  void NotifyPresentationConnectionStateChange(
      const MediaRoute::Id& route_id,
      content::PresentationConnectionState state);
  void NotifyPresentationConnectionClose(
      const MediaRoute::Id& route_id,
      content::PresentationConnectionCloseReason reason,
      const std::string& message);

  // Called when off the record route |route_id| has been created.
  void OnOffTheRecordRouteCreated(const MediaRoute::Id& route_id);
  // Called when route |route_id| has been terminated.
  void OnRouteTerminated(const MediaRoute::Id& route_id);

  using PresentationConnectionStateChangedCallbacks = base::CallbackList<void(
      const content::PresentationConnectionStateChangeInfo&)>;
  base::ScopedPtrHashMap<
      MediaRoute::Id,
      scoped_ptr<PresentationConnectionStateChangedCallbacks>>
      presentation_connection_state_callbacks_;

  base::ThreadChecker thread_checker_;

 private:
  // Called when a PresentationConnectionStateChangedCallback associated with
  // |route_id| is removed from |presentation_connection_state_callbacks_|.
  void OnPresentationConnectionStateCallbackRemoved(
      const MediaRoute::Id& route_id);

  // Ids of current off the record media routes.
  std::set<MediaRoute::Id> off_the_record_route_ids_;

  DISALLOW_COPY_AND_ASSIGN(MediaRouterBase);
};

}  // namespace media_router

#endif  // CHROME_BROWSER_MEDIA_ROUTER_MEDIA_ROUTER_BASE_H_