Testing emulator port to JavaScript.

Builds but doesn't do anything interesting yet.

CMakeLists.txt

@@ -72,6 +72,10 @@ if(BUILD_PLAY)
 		if(TARGET_PLATFORM_ANDROID)
 			add_subdirectory(Source/ui_android/)
 		endif(TARGET_PLATFORM_ANDROID)
+
+		if(TARGET_PLATFORM_JS)
+			add_subdirectory(Source/ui_js)
+		endif(TARGET_PLATFORM_JS)
 	endif()
 endif(BUILD_PLAY)
 

Source/CMakeLists.txt

@@ -475,7 +475,7 @@ if(TARGET_PLATFORM_WIN32)
 	list(APPEND PROJECT_LIBS winmm)
 endif()
 
-if(TARGET_PLATFORM_MACOS OR TARGET_PLATFORM_UNIX)
+if(TARGET_PLATFORM_MACOS OR TARGET_PLATFORM_UNIX OR TARGET_PLATFORM_JS)
 	set(PLATFORM_SPECIFIC_SRC_FILES Posix_VolumeStream.cpp)
 endif()
 

Source/ui_js/CMakeLists.txt

@@ -0,0 +1,36 @@
+cmake_minimum_required(VERSION 3.5)
+
+set(CMAKE_MODULE_PATH
+	${CMAKE_CURRENT_SOURCE_DIR}/../../../../deps/Dependencies/cmake-modules
+	${CMAKE_MODULE_PATH}
+)
+include(Header)
+
+project(Play)
+
+if(NOT TARGET PlayCore)
+	add_subdirectory(
+		${CMAKE_CURRENT_SOURCE_DIR}/../
+		${CMAKE_CURRENT_BINARY_DIR}/Source
+	)
+endif()
+list(APPEND PROJECT_LIBS PlayCore)
+
+add_executable(Play
+	Main.cpp
+	Ps2VmJs.cpp
+	Ps2VmJs.h
+)
+target_link_libraries(Play PUBLIC ${PROJECT_LIBS})
+
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --bind")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s MODULARIZE=1")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s EXPORTED_FUNCTIONS=\"['_main', '_initVm', '_EmptyBlockHandler', '_MemoryUtils_GetByteProxy', '_MemoryUtils_GetHalfProxy', '_MemoryUtils_GetWordProxy', '_MemoryUtils_SetByteProxy', '_MemoryUtils_SetHalfProxy', '_MemoryUtils_SetWordProxy', '_LWL_Proxy', '_LWR_Proxy', '_SWL_Proxy', '_SWR_Proxy']\"")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s EXPORTED_RUNTIME_METHODS=\"['ccall', 'FS']\"")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s FORCE_FILESYSTEM")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s ALLOW_TABLE_GROWTH")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s ALLOW_MEMORY_GROWTH")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s ASSERTIONS=2")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s EXPORT_NAME=Play")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s PTHREAD_POOL_SIZE=4")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s ENVIRONMENT=web,worker")

Source/ui_js/Main.cpp

@@ -0,0 +1,33 @@
+#include <cstdio>
+#include <emscripten/bind.h>
+#include "Ps2VmJs.h"
+
+CPs2VmJs* g_virtualMachine = nullptr;
+
+int main(int argc, const char** argv)
+{
+	return 0;
+}
+
+extern "C" void initVm()
+{
+	g_virtualMachine = new CPs2VmJs();
+	g_virtualMachine->Initialize();
+	//g_virtualMachine->Reset();
+	printf("Reset VM\r\n");
+}
+
+void loadElf(std::string path)
+{
+	printf("Loading '%s'...\r\n", path.c_str());
+	g_virtualMachine->m_ee->m_os->BootFromFile(path);
+	printf("Starting...\r\n");
+	g_virtualMachine->Resume();
+}
+
+EMSCRIPTEN_BINDINGS(PsfPlayer)
+{
+	using namespace emscripten;
+
+	function("loadElf", &loadElf);
+}

Source/ui_js/Ps2VmJs.cpp

@@ -0,0 +1,31 @@
+#include "Ps2VmJs.h"
+#include "Jitter_CodeGen_Wasm.h"
+#include "MemoryUtils.h"
+#include "BasicBlock.h"
+
+extern "C" uint32 LWL_Proxy(uint32, uint32, CMIPS*);
+extern "C" uint32 LWR_Proxy(uint32, uint32, CMIPS*);
+extern "C" void SWL_Proxy(uint32, uint32, CMIPS*);
+extern "C" void SWR_Proxy(uint32, uint32, CMIPS*);
+
+void CPs2VmJs::CreateVM()
+{
+	printf("Initializing PS2VM...\r\n");
+
+	Jitter::CWasmFunctionRegistry::RegisterFunction(reinterpret_cast<uintptr_t>(&EmptyBlockHandler), "_EmptyBlockHandler", "vi");
+	Jitter::CWasmFunctionRegistry::RegisterFunction(reinterpret_cast<uintptr_t>(&MemoryUtils_GetByteProxy), "_MemoryUtils_GetByteProxy", "iii");
+	Jitter::CWasmFunctionRegistry::RegisterFunction(reinterpret_cast<uintptr_t>(&MemoryUtils_GetHalfProxy), "_MemoryUtils_GetHalfProxy", "iii");
+	Jitter::CWasmFunctionRegistry::RegisterFunction(reinterpret_cast<uintptr_t>(&MemoryUtils_GetWordProxy), "_MemoryUtils_GetWordProxy", "iii");
+
+	Jitter::CWasmFunctionRegistry::RegisterFunction(reinterpret_cast<uintptr_t>(&MemoryUtils_SetByteProxy), "_MemoryUtils_SetByteProxy", "viii");
+	Jitter::CWasmFunctionRegistry::RegisterFunction(reinterpret_cast<uintptr_t>(&MemoryUtils_SetHalfProxy), "_MemoryUtils_SetHalfProxy", "viii");
+	Jitter::CWasmFunctionRegistry::RegisterFunction(reinterpret_cast<uintptr_t>(&MemoryUtils_SetWordProxy), "_MemoryUtils_SetWordProxy", "viii");
+
+	Jitter::CWasmFunctionRegistry::RegisterFunction(reinterpret_cast<uintptr_t>(&LWL_Proxy), "_LWL_Proxy", "iiii");
+	Jitter::CWasmFunctionRegistry::RegisterFunction(reinterpret_cast<uintptr_t>(&LWR_Proxy), "_LWR_Proxy", "iiii");
+
+	Jitter::CWasmFunctionRegistry::RegisterFunction(reinterpret_cast<uintptr_t>(&SWL_Proxy), "_SWL_Proxy", "viii");
+	Jitter::CWasmFunctionRegistry::RegisterFunction(reinterpret_cast<uintptr_t>(&SWR_Proxy), "_SWR_Proxy", "viii");
+
+	CPS2VM::CreateVM();
+}

Source/ui_js/Ps2VmJs.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#include "PS2VM.h"
+
+class CPs2VmJs : public CPS2VM
+{
+public:
+	void CreateVM() override;
+};

build_cmake/copy_play_js_files.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+script_dir=$(dirname -- "$0")
+cp $script_dir/build_wasm/Source/ui_js/Play.js $script_dir/../js/play_browser/src/Play.js
+cp $script_dir/build_wasm/Source/ui_js/Play.js $script_dir/../js/play_browser/public/Play.js
+cp $script_dir/build_wasm/Source/ui_js/Play.worker.js $script_dir/../js/play_browser/public/Play.worker.js
+cp $script_dir/build_wasm/Source/ui_js/Play.wasm $script_dir/../js/play_browser/public/Play.wasm

js/play_browser/.eslintignore

@@ -0,0 +1 @@
+src/Play.js

js/play_browser/config-overrides.js

@@ -0,0 +1,19 @@
+module.exports = {
+    // Extend/override the dev server configuration used by CRA
+    // See: https://github.com/timarney/react-app-rewired#extended-configuration-options
+    devServer: function(configFunction) {
+      return function(proxy, allowedHost) {
+        // Create the default config by calling configFunction with the proxy/allowedHost parameters
+        // Default config: https://github.com/facebook/create-react-app/blob/master/packages/react-scripts/config/webpackDevServer.config.js
+        const config = configFunction(proxy, allowedHost);
+  
+        config.headers = {
+            'Cross-Origin-Embedder-Policy': 'require-corp',
+            'Cross-Origin-Opener-Policy': 'same-origin'
+        }
+  
+        return config;
+      };
+    },
+  };
+  

js/play_browser/package.json

@@ -0,0 +1,49 @@
+{
+  "name": "play",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@reduxjs/toolkit": "^1.6.2",
+    "@testing-library/jest-dom": "^5.15.0",
+    "@testing-library/react": "^11.2.7",
+    "@testing-library/user-event": "^12.8.3",
+    "@types/jest": "^26.0.24",
+    "@types/node": "^12.20.37",
+    "@types/react": "^17.0.34",
+    "@types/react-dom": "^17.0.11",
+    "@types/react-redux": "^7.1.20",
+    "react": "^17.0.2",
+    "react-dom": "^17.0.2",
+    "react-redux": "^7.2.6",
+    "react-scripts": "^4.0.3",
+    "typescript": "^4.4.4",
+    "web-vitals": "^1.1.2"
+  },
+  "scripts": {
+    "start": "react-app-rewired start",
+    "build": "react-app-rewired build",
+    "test": "react-app-rewired test",
+    "eject": "react-scripts eject"
+  },
+  "eslintConfig": {
+    "extends": [
+      "react-app",
+      "react-app/jest"
+    ]
+  },
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  },
+  "devDependencies": {
+    "react-app-rewired": "^2.1.8"
+  }
+}

js/play_browser/public/index.html

@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#000000" />
+    <meta
+      name="description"
+      content="Web site created using create-react-app"
+    />
+    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
+    <!--
+      manifest.json provides metadata used when your web app is installed on a
+      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>React App</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>

js/play_browser/public/manifest.json

@@ -0,0 +1,25 @@
+{
+  "short_name": "React App",
+  "name": "Create React App Sample",
+  "icons": [
+    {
+      "src": "favicon.ico",
+      "sizes": "64x64 32x32 24x24 16x16",
+      "type": "image/x-icon"
+    },
+    {
+      "src": "logo192.png",
+      "type": "image/png",
+      "sizes": "192x192"
+    },
+    {
+      "src": "logo512.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    }
+  ],
+  "start_url": ".",
+  "display": "standalone",
+  "theme_color": "#000000",
+  "background_color": "#ffffff"
+}

js/play_browser/public/robots.txt

@@ -0,0 +1,3 @@
+# https://www.robotstxt.org/robotstxt.html
+User-agent: *
+Disallow:

js/play_browser/src/Actions.ts

@@ -0,0 +1,79 @@
+import { configureStore, createAsyncThunk, createReducer } from "@reduxjs/toolkit";
+import { TypedUseSelectorHook, useDispatch, useSelector } from "react-redux";
+import { PlayModule, initPlayModule } from './PlayModule';
+
+let filePath = "archive.zip";
+
+export type AudioState = {
+    value: string,
+    psfLoaded: boolean
+    playing: boolean
+    archiveFileList : string[]
+    currentPsfTags : any | undefined
+};
+
+let initialState : AudioState = {
+    value: "unknown",
+    psfLoaded: false,
+    playing: false,
+    archiveFileList: [],
+    currentPsfTags: undefined
+};
+
+export const init = createAsyncThunk<void>('init', 
+    async () => {
+        await initPlayModule();
+    }
+);
+
+export const loadElf = createAsyncThunk<void, string>('loadElf',
+    async (url : string, thunkAPI) => {
+        console.log(`loading ${url}...`);
+        let blob = await fetch(url).then(response => {
+            if(!response.ok) {
+                return null;
+            } else {
+                return response.blob();
+            }
+        });
+        if(blob === null) {
+            thunkAPI.rejectWithValue(null);
+            return;
+        }
+        let data = new Uint8Array(await blob.arrayBuffer());
+        let stream = PlayModule.FS.open(filePath, "w+");
+        PlayModule.FS.write(stream, data, 0, data.length, 0);
+        PlayModule.FS.close(stream);
+        PlayModule.loadElf(filePath);
+    }
+);
+
+const reducer = createReducer(initialState, (builder) => (
+    builder
+        .addCase(init.fulfilled, (state, action) => {
+            console.log("init");
+            state.value = "initialized";
+            return state;
+        })
+        .addCase(loadElf.fulfilled, (state, action) => {
+            state.value = "loaded";
+            state.currentPsfTags = undefined;
+            return state;
+        })
+        .addCase(loadElf.rejected, (state, action) => {
+            state.currentPsfTags = undefined;
+            state.archiveFileList = [];
+            state.value = `loading failed: ${action.error.message}`;
+            return state;
+        })
+));
+
+export const store = configureStore({
+    reducer: { play: reducer }
+});
+
+export type RootState = ReturnType<typeof store.getState>;
+export type AppDispatch = typeof store.dispatch;
+
+export const useAppDispatch = () => useDispatch<AppDispatch>();
+export const useAppSelector: TypedUseSelectorHook<RootState> = useSelector;

js/play_browser/src/App.css

@@ -0,0 +1,38 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  height: 40vmin;
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: App-logo-spin infinite 20s linear;
+  }
+}
+
+.App-header {
+  background-color: #282c34;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+  color: white;
+}
+
+.App-link {
+  color: #61dafb;
+}
+
+@keyframes App-logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}

js/play_browser/src/App.test.tsx

@@ -0,0 +1,9 @@
+import React from 'react';
+import { render, screen } from '@testing-library/react';
+import App from './App';
+
+test('renders learn react link', () => {
+  render(<App />);
+  const linkElement = screen.getByText(/learn react/i);
+  expect(linkElement).toBeInTheDocument();
+});

js/play_browser/src/App.tsx

@@ -0,0 +1,29 @@
+import './App.css';
+import { ChangeEvent } from 'react';
+import { PlayModule } from './PlayModule';
+import { useAppDispatch, useAppSelector, loadElf } from "./Actions";
+
+function App() {
+  const state = useAppSelector((state) => state.play);
+  const dispatch = useAppDispatch();
+  const handleChange = function(event : ChangeEvent<HTMLInputElement>) {
+    if(event.target && event.target.files && event.target.files.length !== 0) {
+      var url = URL.createObjectURL(event.target.files[0]);
+      dispatch(loadElf(url));
+    }
+  }
+  console.log(state.value);
+  if(PlayModule === null) {
+    return (
+      <div>Loading...</div>
+    );
+  } else {
+    return (
+      <div>
+        <input type="file" onChange={handleChange}/>
+      </div>
+    );
+  }
+}
+
+export default App;

js/play_browser/src/PlayModule.ts

@@ -0,0 +1,18 @@
+import Play from "./Play";
+
+export let PlayModule : any = null;
+
+let module_overrides = {
+    locateFile: function(path : string) {
+        const baseURL = window.location.origin + window.location.pathname.substring(0, window.location.pathname.lastIndexOf( "/" ));
+        return baseURL + '/' + path;
+    },
+    mainScriptUrlOrBlob: "",
+};
+
+export let initPlayModule = async function() {
+    module_overrides.mainScriptUrlOrBlob = module_overrides.locateFile('Play.js');
+    PlayModule = await Play(module_overrides);
+    PlayModule.FS.mkdir("/work");
+    PlayModule.ccall("initVm", "", [], []);
+};

js/play_browser/src/index.css

@@ -0,0 +1,13 @@
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}

js/play_browser/src/index.tsx

@@ -0,0 +1,23 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import './index.css';
+import App from './App';
+import reportWebVitals from './reportWebVitals';
+import { Provider } from "react-redux";
+import { store, init } from "./Actions";
+
+store.dispatch(init());
+
+ReactDOM.render(
+  <React.StrictMode>
+    <Provider store={store}>
+      <App />
+    </Provider>
+  </React.StrictMode>,
+  document.getElementById('root')
+);
+
+// If you want to start measuring performance in your app, pass a function
+// to log results (for example: reportWebVitals(console.log))
+// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
+reportWebVitals();

js/play_browser/src/logo.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3"><g fill="#61DAFB"><path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/><circle cx="420.9" cy="296.5" r="45.7"/><path d="M520.5 78.1z"/></g></svg>

js/play_browser/src/react-app-env.d.ts

@@ -0,0 +1 @@
+/// <reference types="react-scripts" />

js/play_browser/src/reportWebVitals.ts

@@ -0,0 +1,15 @@
+import { ReportHandler } from 'web-vitals';
+
+const reportWebVitals = (onPerfEntry?: ReportHandler) => {
+  if (onPerfEntry && onPerfEntry instanceof Function) {
+    import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
+      getCLS(onPerfEntry);
+      getFID(onPerfEntry);
+      getFCP(onPerfEntry);
+      getLCP(onPerfEntry);
+      getTTFB(onPerfEntry);
+    });
+  }
+};
+
+export default reportWebVitals;

js/play_browser/src/setupTests.ts

@@ -0,0 +1,5 @@
+// jest-dom adds custom jest matchers for asserting on DOM nodes.
+// allows you to do things like:
+// expect(element).toHaveTextContent(/react/i)
+// learn more: https://github.com/testing-library/jest-dom
+import '@testing-library/jest-dom';

js/play_browser/tsconfig.json

@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "lib": [
+      "dom",
+      "dom.iterable",
+      "esnext"
+    ],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "allowSyntheticDefaultImports": true,
+    "strict": true,
+    "forceConsistentCasingInFileNames": true,
+    "noFallthroughCasesInSwitch": true,
+    "module": "esnext",
+    "moduleResolution": "node",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "noEmit": true,
+    "jsx": "react-jsx"
+  },
+  "include": [
+    "src"
+  ]
+}