[UWP] Basic console panel

support/hololens/ServoApp/Devtools/Client.h

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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+#pragma once
+
+#include "pch.h"
+
+namespace winrt::servo {
+using namespace winrt::Windows::Storage::Streams;
+using namespace winrt::Windows::Data::Json;
+using namespace winrt::Windows::Foundation;
+using namespace winrt::Windows::Networking::Sockets;
+
+class DevtoolsDelegate;
+
+enum DevtoolsMessageLevel { Error, Warn, None };
+
+class DevtoolsClient {
+
+public:
+  DevtoolsClient(hstring hostname, hstring port, DevtoolsDelegate &d)
+      : mDelegate(d), mHostname(hostname), mPort(port){};
+
+  ~DevtoolsClient() { Stop(); }
+  void Run();
+  void Stop();
+  void Send(JsonObject);
+
+private:
+  hstring mPort;
+  hstring mHostname;
+  DevtoolsDelegate &mDelegate;
+  std::optional<DataReader> mDataReader;
+  std::optional<DataWriter> mDataWriter;
+  std::optional<IAsyncAction> mReceiveOp;
+  std::vector<JsonObject> mPendingObjects;
+  IAsyncOperation<unsigned int> mReaderOp;
+  bool mSending = false;
+  bool mReceiving = false;
+  void SendPendingObjects();
+  IAsyncAction Loop();
+  DevtoolsMessageLevel ParseLevel(JsonObject);
+  hstring ParseSource(JsonObject);
+  void HandleMessage(JsonObject);
+  void HandlePageError(JsonObject);
+  void HandleConsoleMessage(JsonObject);
+  void HandleNonHandledMessage(JsonObject);
+};
+
+class DevtoolsDelegate {
+public:
+  virtual void OnDevtoolsMessage(DevtoolsMessageLevel, hstring, hstring) = 0;
+  virtual void OnDevtoolsDetached() = 0;
+};
+
+} // namespace winrt::servo