adding packages

deprecated/mobile_popup/example/windows/flutter_embedder_example.cpp

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+// Copyright 2018 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
+//
+//      http://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.
+
+#include <iostream>
+#include <string>
+#include <vector>
+
+#include "flutter/flutter_window_controller.h"
+
+// Include windows.h last, to minimize potential conflicts. The CreateWindow
+// macro needs to be undefined because it prevents calling
+// FlutterWindowController's method.
+#include <windows.h>
+#undef CreateWindow
+
+namespace {
+
+// Returns the path of the directory containing this executable, or an empty
+// string if the directory cannot be found.
+std::string GetExecutableDirectory() {
+  char buffer[MAX_PATH];
+  if (GetModuleFileName(nullptr, buffer, MAX_PATH) == 0) {
+    std::cerr << "Couldn't locate executable" << std::endl;
+    return "";
+  }
+  std::string executable_path(buffer);
+  size_t last_separator_position = executable_path.find_last_of('\\');
+  if (last_separator_position == std::string::npos) {
+    std::cerr << "Unabled to find parent directory of " << executable_path
+              << std::endl;
+    return "";
+  }
+  return executable_path.substr(0, last_separator_position);
+}
+
+}  // namespace
+
+int main(int argc, char **argv) {
+  // Resources are located relative to the executable.
+  std::string base_directory = GetExecutableDirectory();
+  if (base_directory.empty()) {
+    base_directory = ".";
+  }
+  std::string data_directory = base_directory + "\\data";
+  std::string assets_path = data_directory + "\\flutter_assets";
+  std::string icu_data_path = data_directory + "\\icudtl.dat";
+
+  // Arguments for the Flutter Engine.
+  std::vector<std::string> arguments;
+#ifndef _DEBUG
+  arguments.push_back("--disable-dart-asserts");
+#endif
+  flutter::FlutterWindowController flutter_controller(icu_data_path);
+
+  // Start the engine.
+  if (!flutter_controller.CreateWindow(800, 600, "Flutter Desktop Example",
+                                       assets_path, arguments)) {
+    return EXIT_FAILURE;
+  }
+
+  // Run until the window is closed.
+  flutter_controller.RunEventLoop();
+  return EXIT_SUCCESS;
+}