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// Copyright 2016 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.
#include <vector>
#include "ash/public/interfaces/cast_config.mojom.h"
#include "base/macros.h"
#include "base/observer_list.h"
#include "mojo/public/cpp/bindings/associated_binding.h"
#include "mojo/public/cpp/bindings/binding_set.h"
namespace ash {
// There is a single CastConfigController which receives device
// information. This observer interface sends that information to all the
// TrayCast items--there is one per display.
class CastConfigControllerObserver {
virtual void OnDevicesUpdated(
std::vector<mojom::SinkAndRoutePtr> devices) = 0;
virtual ~CastConfigControllerObserver() {}
// We want to establish our connection lazily and preferably only once, as
// TrayCast instances will come and go.
class CastConfigController : public ash::mojom::CastConfig {
~CastConfigController() override;
// Returns whether our SetClient() method has been called and the client
// object pointer is still live.
bool Connected();
void AddObserver(CastConfigControllerObserver* observer);
void RemoveObserver(CastConfigControllerObserver* observer);
void BindRequest(mojom::CastConfigRequest request);
// Return true if there are available cast devices.
bool HasSinksAndRoutes() const;
// Return true if casting is active. The route may be DIAL based, such as
// casting YouTube where the cast sink directly streams content from another
// server. In that case, this device is not actively transmitting information
// to the cast sink.
bool HasActiveRoute() const;
// ash::mojom::CastConfig:
void SetClient(mojom::CastConfigClientAssociatedPtrInfo client) override;
void OnDevicesUpdated(std::vector<mojom::SinkAndRoutePtr> devices) override;
// Methods to forward to |client_|.
void RequestDeviceRefresh();
void CastToSink(mojom::CastSinkPtr sink);
void StopCasting(mojom::CastRoutePtr route);
const std::vector<mojom::SinkAndRoutePtr>& sinks_and_routes() const {
return sinks_and_routes_;
// Bindings for the CastConfig interface.
mojo::BindingSet<mojom::CastConfig> bindings_;
mojom::CastConfigClientAssociatedPtr client_;
std::vector<mojom::SinkAndRoutePtr> sinks_and_routes_;
base::ObserverList<CastConfigControllerObserver> observers_;
} // namespace ash