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// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef PLATFORM_IMPL_G3_WEBRTC_H_
#define PLATFORM_IMPL_G3_WEBRTC_H_
#include <memory>
#include "absl/strings/string_view.h"
#include "platform/api/webrtc.h"
#include "platform/impl/g3/single_thread_executor.h"
#include "webrtc/api/peer_connection_interface.h"
namespace location {
namespace nearby {
namespace g3 {
class WebRtcSignalingMessenger : public api::WebRtcSignalingMessenger {
public:
using OnSignalingMessageCallback =
api::WebRtcSignalingMessenger::OnSignalingMessageCallback;
using OnSignalingCompleteCallback =
api::WebRtcSignalingMessenger::OnSignalingCompleteCallback;
explicit WebRtcSignalingMessenger(
absl::string_view self_id,
const connections::LocationHint& location_hint);
~WebRtcSignalingMessenger() override = default;
bool SendMessage(absl::string_view peer_id,
const ByteArray& message) override;
bool StartReceivingMessages(
OnSignalingMessageCallback on_message_callback,
OnSignalingCompleteCallback on_complete_callback) override;
void StopReceivingMessages() override;
private:
std::string self_id_;
connections::LocationHint location_hint_;
};
class WebRtcMedium : public api::WebRtcMedium {
public:
using PeerConnectionCallback = api::WebRtcMedium::PeerConnectionCallback;
WebRtcMedium() = default;
~WebRtcMedium() override;
const std::string GetDefaultCountryCode() override;
// Creates and returns a new webrtc::PeerConnectionInterface object via
// |callback|.
void CreatePeerConnection(webrtc::PeerConnectionObserver* observer,
PeerConnectionCallback callback) override;
// Returns a signaling messenger for sending WebRTC signaling messages.
std::unique_ptr<api::WebRtcSignalingMessenger> GetSignalingMessenger(
absl::string_view self_id,
const connections::LocationHint& location_hint) override;
private:
// Executor for handling calls to create a peer connection.
SingleThreadExecutor single_thread_executor_;
};
} // namespace g3
} // namespace nearby
} // namespace location
#endif // PLATFORM_IMPL_G3_WEBRTC_H_