Introduce React/TypeScript/TSLint into app for new UI components

npm run transpile
  Works on files under js/react/
  Outputs files right next to the .tsx file

This is part of our `grunt dev` task, as well as the default grunt task,
which does everything else necessary to get a raw git checkout ready to
run.

.eslintignore

@@ -7,13 +7,16 @@ libtextsecure/**
 # these aren't ready yet, pulling files in one-by-one
 js/*.js
 js/models/**/*.js
-js/react/**/*.js
 js/views/**/*.js
 test/*.js
 test/models/*.js
 test/views/*.js
 /*.js
 
+# typescript-generated files
+js/react/**/*.js
+
+
 # ES2015+ files
 !js/background.js
 !js/backup.js

.gitignore

@@ -22,3 +22,6 @@ js/libtextsecure.js
 stylesheets/*.css
 test/test.js
 libtextsecure/test/test.js
+
+# React / TypeScript
+js/react/**/*.js

Gruntfile.js

@@ -108,6 +108,7 @@ module.exports = function(grunt) {
         '!js/backup.js',
         '!js/modules/**/*.js',
         '!js/views/conversation_search_view.js',
+        '!js/react/**/*.js',
         '!js/views/debug_log_view.js',
         '!js/signal_protocol_store.js',
         '!js/database.js',
@@ -162,6 +163,7 @@ module.exports = function(grunt) {
         '!js/libsignal-protocol-worker.js',
         '!js/components.js',
         '!js/modules/**/*.js',
+        '!js/react/**/*.js',
         'test/**/*.js',
         '!test/blanket_mocha.js',
         '!test/modules/**/*.js',
@@ -190,10 +192,17 @@ module.exports = function(grunt) {
         files: ['<%= jscs.all.src %>'],
         tasks: ['jscs']
       },
+      transpile: {
+        files: ['./js/react/**/*.js'],
+        tasks: ['exec:transpile']
+      }
     },
     exec: {
       'tx-pull': {
         cmd: 'tx pull'
+      },
+      'transpile': {
+        cmd: 'npm run transpile',
       }
     },
     'test-release': {
@@ -477,5 +486,8 @@ module.exports = function(grunt) {
   grunt.registerTask('copy_dist', ['gitinfo', 'copy:res', 'copy:src']);
   grunt.registerTask('date', ['gitinfo', 'getExpireTime']);
   grunt.registerTask('prep-release', ['gitinfo', 'clean-release', 'fetch-release']);
-  grunt.registerTask('default', ['concat', 'copy:deps', 'sass', 'date']);
+  grunt.registerTask(
+    'default',
+    ['concat', 'copy:deps', 'sass', 'date', 'exec:transpile']
+  );
 };

js/react/sub/test2.tsx

@@ -0,0 +1,38 @@
+import React from 'react';
+
+interface IProps { name: string; }
+
+interface IState { count: number; }
+
+
+const items = [
+  'one',
+  'two',
+  'three',
+  'four',
+];
+
+export class InlineReply extends React.Component<IProps, IState> {
+  constructor(props: IProps) {
+    super(props);
+
+    this.state = {
+      count: 0,
+    };
+  }
+
+  public render() {
+    const { name } = this.props;
+
+    return (
+      <div>
+        This is a basic component. Hi there, {name}!
+      </div>
+    );
+  }
+}
+
+export function greeter2(person: any) {
+    // console.log(items);
+    return `Hello, ${person}`;
+}

js/react/test.ts

@@ -0,0 +1,7 @@
+import { InlineReply } from './sub/test2';
+
+// console.log(InlineReply);
+
+export function greeter(person: any) {
+    return 'Hello, ' + person;
+}

package.json

@@ -41,6 +41,9 @@
     "test-server": "mocha --recursive test/server",
     "test-server-coverage": "nyc --reporter=lcov --reporter=text mocha --recursive test/server",
     "eslint": "eslint .",
+    "tslint": "tslint ./js/react/**/*.{ts,tsx}",
+    "transpile": "tsc",
+    "clean-transpile": "rimraf js/built/",
     "open-coverage": "open coverage/lcov-report/index.html"
   },
   "dependencies": {
@@ -50,6 +53,7 @@
     "blueimp-canvas-to-blob": "^3.14.0",
     "blueimp-load-image": "^2.18.0",
     "bunyan": "^1.8.12",
+    "classnames": "^2.2.5",
     "config": "^1.28.1",
     "decompress": "^4.2.0",
     "electron-config": "^1.0.0",
@@ -74,6 +78,8 @@
     "os-locale": "^2.1.0",
     "pify": "^3.0.0",
     "proxy-agent": "^2.1.0",
+    "react": "^16.2.0",
+    "react-dom": "^16.2.0",
     "read-last-lines": "^1.3.0",
     "rimraf": "^2.6.2",
     "semver": "^5.4.1",
@@ -84,6 +90,8 @@
     "websocket": "^1.0.25"
   },
   "devDependencies": {
+    "@types/react": "^16.3.1",
+    "@types/react-dom": "^16.0.4",
     "asar": "^0.14.0",
     "bower": "^1.8.2",
     "chai": "^4.1.2",
@@ -113,7 +121,10 @@
     "nsp": "^3.2.1",
     "nyc": "^11.4.1",
     "sinon": "^4.4.2",
-    "spectron": "^3.8.0"
+    "spectron": "^3.8.0",
+    "tslint": "^5.9.1",
+    "tslint-react": "^3.5.1",
+    "typescript": "^2.8.1"
   },
   "engines": {
     "node": "^8.2.1"

preload.js

@@ -108,6 +108,9 @@ window.nodeBuffer = Buffer;
 window.nodeFetch = require('node-fetch');
 window.nodeNotifier = require('node-notifier');
 window.ProxyAgent = require('proxy-agent');
+
+window.React = require('react');
+window.ReactDOM = require('react-dom');
 window.moment = require('moment');
 
 const { setup } = require('./js/i18n');
@@ -147,6 +150,8 @@ window.Signal.Database = require('./js/modules/database');
 window.Signal.Debug = require('./js/modules/debug');
 window.Signal.Logs = require('./js/modules/logs');
 
+window.Signal.React = {};
+
 window.Signal.Migrations = {};
 window.Signal.Migrations.deleteAttachmentData =
   Attachment.deleteData(deleteAttachmentData);

tsconfig.json

@@ -0,0 +1,57 @@
+{
+  "compilerOptions": {
+    /* Basic Options */
+    "target": "es2016",                       /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
+    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
+    // "lib": [],                             /* Specify library files to be included in the compilation. */
+    // "allowJs": true,                       /* Allow javascript files to be compiled. */
+    // "checkJs": true,                       /* Report errors in .js files. */
+    "jsx": "react",                           /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
+    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
+    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
+    // "outFile": "./",                       /* Concatenate and emit output to single file. */
+    // "outDir": "./",                        /* Redirect output structure to the directory. */
+    "rootDir": "./js/react",                  /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    // "removeComments": true,                /* Do not emit comments to output. */
+    // "noEmit": true,                        /* Do not emit outputs. */
+    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
+    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+
+    /* Strict Type-Checking Options */
+    "strict": true,                           /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,              /* Enable strict null checks. */
+    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
+    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
+    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
+    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
+
+    /* Additional Checks */
+    "noUnusedLocals": true,                   /* Report errors on unused locals. */
+    "noUnusedParameters": true,               /* Report errors on unused parameters. */
+    "noImplicitReturns": true,                /* Report error when not all code paths in function return a value. */
+    "noFallthroughCasesInSwitch": true,       /* Report errors for fallthrough cases in switch statement. */
+
+    /* Module Resolution Options */
+    "moduleResolution": "node",               /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
+    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
+    // "typeRoots": [],                       /* List of folders to include type definitions from. */
+    // "types": [],                           /* Type declaration files to be included in compilation. */
+    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+    "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
+
+    /* Source Map Options */
+    // "sourceRoot": "./",                    /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+    // "mapRoot": "./",                       /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
+    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+
+    /* Experimental Options */
+    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
+    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+  }
+}

tslint.json

@@ -0,0 +1,13 @@
+{
+    "defaultSeverity": "error",
+    "extends": [
+        "tslint:recommended",
+        "tslint-react"
+    ],
+    "jsRules": {},
+    "rules": {
+      "quotemark": [true, "single", "jsx-double", "avoid-template", "avoid-escape"],
+      "no-consecutive-blank-lines": [true, 2]
+    },
+    "rulesDirectory": []
+}