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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_MEDIA_ROUTER_BROWSER_MIRRORING_MEDIA_CONTROLLER_HOST_IMPL_H_
#define COMPONENTS_MEDIA_ROUTER_BROWSER_MIRRORING_MEDIA_CONTROLLER_HOST_IMPL_H_
#include "base/observer_list.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "components/media_router/browser/mirroring_media_controller_host.h"
#include "components/media_router/common/media_route.h"
#include "components/media_router/common/mojom/media_controller.mojom.h"
#include "components/media_router/common/mojom/media_status.mojom.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace media_router {
// The delay to wait before pausing the route. This ensures that any UI has can
// be fully hidden before freezing.
constexpr base::TimeDelta kPauseDelay = base::Milliseconds(500);
// MirroringMediaControllerHostImpl is a per-MediaRoute object which hosts a
// MediaController, and passes to it commands related mirroring-specific media
// controls.
class MirroringMediaControllerHostImpl : public MirroringMediaControllerHost {
public:
explicit MirroringMediaControllerHostImpl(
mojo::Remote<media_router::mojom::MediaController> mirroring_controller);
MirroringMediaControllerHostImpl(const MirroringMediaControllerHostImpl&) =
delete;
MirroringMediaControllerHostImpl& operator=(
const MirroringMediaControllerHostImpl&) = delete;
~MirroringMediaControllerHostImpl() override;
// MirroringMediaControllerHost:
mojo::PendingRemote<media_router::mojom::MediaStatusObserver>
GetMediaStatusObserverPendingRemote() override;
void AddObserver(Observer* observer) override;
void RemoveObserver(Observer* observer) override;
bool CanFreeze() const override;
bool IsFrozen() const override;
void Freeze() override;
void Unfreeze() override;
void OnMediaStatusUpdated(
media_router::mojom::MediaStatusPtr status) override;
private:
// Calls pause on the `mirroring_controller_` without delay.
void DoPauseController();
mojo::Remote<media_router::mojom::MediaController> mirroring_controller_;
mojo::Receiver<media_router::mojom::MediaStatusObserver> observer_receiver_{
this};
// The current state of freeze info for the associated route, as interpreted
// from MediaStatus updates.
bool can_freeze_ = false;
bool is_frozen_ = false;
// When running, the associated route is about to freeze.
base::OneShotTimer freeze_timer_;
base::ObserverList<Observer> observers_;
};
} // namespace media_router
#endif // COMPONENTS_MEDIA_ROUTER_BROWSER_MIRRORING_MEDIA_CONTROLLER_HOST_IMPL_H_
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