mirror of
https://github.com/kidfromjupiter/nearby.git
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122 lines
4.1 KiB
C++
122 lines
4.1 KiB
C++
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef PLATFORM_PUBLIC_WEBRTC_H_
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#define PLATFORM_PUBLIC_WEBRTC_H_
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#ifndef NO_WEBRTC
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#include <memory>
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#include <optional>
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#include <string>
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#include <utility>
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#include "absl/strings/string_view.h"
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#include "internal/platform/byte_array.h"
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#include "internal/platform/feature_flags.h"
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#include "internal/platform/implementation/platform.h"
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#include "internal/platform/implementation/webrtc.h"
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#include "webrtc/api/peer_connection_interface.h"
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namespace nearby {
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class WebRtcSignalingMessenger {
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public:
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using OnSignalingMessageCallback =
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api::WebRtcSignalingMessenger::OnSignalingMessageCallback;
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using OnSignalingCompleteCallback =
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api::WebRtcSignalingMessenger::OnSignalingCompleteCallback;
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explicit WebRtcSignalingMessenger(
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std::unique_ptr<api::WebRtcSignalingMessenger> messenger)
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: impl_(std::move(messenger)) {}
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virtual ~WebRtcSignalingMessenger() = default;
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WebRtcSignalingMessenger(WebRtcSignalingMessenger&&) = default;
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WebRtcSignalingMessenger operator=(WebRtcSignalingMessenger&&) = delete;
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virtual bool SendMessage(absl::string_view peer_id,
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const ByteArray& message) {
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return impl_->SendMessage(peer_id, message);
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}
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virtual bool StartReceivingMessages(
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OnSignalingMessageCallback on_message_callback,
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OnSignalingCompleteCallback on_complete_callback) {
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return impl_->StartReceivingMessages(std::move(on_message_callback),
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std::move(on_complete_callback));
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}
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virtual void StopReceivingMessages() { impl_->StopReceivingMessages(); }
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virtual bool IsValid() const { return impl_ != nullptr; }
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private:
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std::unique_ptr<api::WebRtcSignalingMessenger> impl_;
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};
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class WebRtcMedium {
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public:
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using PeerConnectionCallback = api::WebRtcMedium::PeerConnectionCallback;
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WebRtcMedium() : impl_(api::ImplementationPlatform::CreateWebRtcMedium()) {}
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virtual ~WebRtcMedium() = default;
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WebRtcMedium(WebRtcMedium&&) = delete;
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WebRtcMedium& operator=(WebRtcMedium&&) = delete;
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// Gets the default two-letter country code associated with current locale.
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// For example, en_US locale resolves to "US".
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const std::string GetDefaultCountryCode() {
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return impl_->GetDefaultCountryCode();
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}
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void SetNonCellular(bool non_cellular) {
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non_cellular_ = non_cellular;
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}
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// Creates and returns a new webrtc::PeerConnectionInterface object via
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// |callback|.
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void CreatePeerConnection(webrtc::PeerConnectionObserver* observer,
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PeerConnectionCallback callback) {
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if (FeatureFlags::GetInstance()
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.GetFlags()
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.support_web_rtc_non_cellular_medium && non_cellular_) {
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std::optional<webrtc::PeerConnectionFactoryInterface::Options> options;
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options->network_ignore_mask |= webrtc::ADAPTER_TYPE_CELLULAR;
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impl_->CreatePeerConnection(options, observer, std::move(callback));
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} else {
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impl_->CreatePeerConnection(observer, std::move(callback));
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}
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}
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// Returns a signaling messenger for sending WebRTC signaling messages.
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virtual std::unique_ptr<WebRtcSignalingMessenger> GetSignalingMessenger(
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absl::string_view self_id,
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const location::nearby::connections::LocationHint& location_hint) {
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return std::make_unique<WebRtcSignalingMessenger>(
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impl_->GetSignalingMessenger(self_id, location_hint));
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}
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virtual bool IsValid() const { return impl_ != nullptr; }
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private:
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std::unique_ptr<api::WebRtcMedium> impl_;
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bool non_cellular_ = false;
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};
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} // namespace nearby
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#endif
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#endif // PLATFORM_PUBLIC_WEBRTC_H_
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