feat: add markdown editor

config/env.js

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+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+const paths = require('./paths');
+
+// Make sure that including paths.js after env.js will read .env variables.
+delete require.cache[require.resolve('./paths')];
+
+const NODE_ENV = process.env.NODE_ENV;
+if (!NODE_ENV) {
+  throw new Error(
+    'The NODE_ENV environment variable is required but was not specified.'
+  );
+}
+
+// https://github.com/bkeepers/dotenv#what-other-env-files-can-i-use
+var dotenvFiles = [
+  `${paths.dotenv}.${NODE_ENV}.local`,
+  `${paths.dotenv}.${NODE_ENV}`,
+  // Don't include `.env.local` for `test` environment
+  // since normally you expect tests to produce the same
+  // results for everyone
+  NODE_ENV !== 'test' && `${paths.dotenv}.local`,
+  paths.dotenv,
+].filter(Boolean);
+
+// Load environment variables from .env* files. Suppress warnings using silent
+// if this file is missing. dotenv will never modify any environment variables
+// that have already been set.  Variable expansion is supported in .env files.
+// https://github.com/motdotla/dotenv
+// https://github.com/motdotla/dotenv-expand
+dotenvFiles.forEach(dotenvFile => {
+  if (fs.existsSync(dotenvFile)) {
+    require('dotenv-expand')(
+      require('dotenv').config({
+        path: dotenvFile,
+      })
+    );
+  }
+});
+
+// We support resolving modules according to `NODE_PATH`.
+// This lets you use absolute paths in imports inside large monorepos:
+// https://github.com/facebookincubator/create-react-app/issues/253.
+// It works similar to `NODE_PATH` in Node itself:
+// https://nodejs.org/api/modules.html#modules_loading_from_the_global_folders
+// Note that unlike in Node, only *relative* paths from `NODE_PATH` are honored.
+// Otherwise, we risk importing Node.js core modules into an app instead of Webpack shims.
+// https://github.com/facebookincubator/create-react-app/issues/1023#issuecomment-265344421
+// We also resolve them to make sure all tools using them work consistently.
+const appDirectory = fs.realpathSync(process.cwd());
+process.env.NODE_PATH = (process.env.NODE_PATH || '')
+  .split(path.delimiter)
+  .filter(folder => folder && !path.isAbsolute(folder))
+  .map(folder => path.resolve(appDirectory, folder))
+  .join(path.delimiter);
+
+// Grab NODE_ENV and REACT_APP_* environment variables and prepare them to be
+// injected into the application via DefinePlugin in Webpack configuration.
+const REACT_APP = /^REACT_APP_/i;
+
+function getClientEnvironment(publicUrl) {
+  const raw = Object.keys(process.env)
+    .filter(key => REACT_APP.test(key))
+    .reduce(
+      (env, key) => {
+        env[key] = process.env[key];
+        return env;
+      },
+      {
+        // Useful for determining whether we’re running in production mode.
+        // Most importantly, it switches React into the correct mode.
+        NODE_ENV: process.env.NODE_ENV || 'development',
+        // Useful for resolving the correct path to static assets in `public`.
+        // For example, <img src={process.env.PUBLIC_URL + '/img/logo.png'} />.
+        // This should only be used as an escape hatch. Normally you would put
+        // images into the `src` and `import` them in code to get their paths.
+        PUBLIC_URL: publicUrl,
+      }
+    );
+  // Stringify all values so we can feed into Webpack DefinePlugin
+  const stringified = {
+    'process.env': Object.keys(raw).reduce((env, key) => {
+      env[key] = JSON.stringify(raw[key]);
+      return env;
+    }, {}),
+  };
+
+  return { raw, stringified };
+}
+
+module.exports = getClientEnvironment;

config/jest/cssTransform.js

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+'use strict';
+
+// This is a custom Jest transformer turning style imports into empty objects.
+// http://facebook.github.io/jest/docs/en/webpack.html
+
+module.exports = {
+  process() {
+    return 'module.exports = {};';
+  },
+  getCacheKey() {
+    // The output is always the same.
+    return 'cssTransform';
+  },
+};

config/jest/fileTransform.js

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+'use strict';
+
+const path = require('path');
+
+// This is a custom Jest transformer turning file imports into filenames.
+// http://facebook.github.io/jest/docs/en/webpack.html
+
+module.exports = {
+  process(src, filename) {
+    return `module.exports = ${JSON.stringify(path.basename(filename))};`;
+  },
+};

config/paths.js

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+'use strict';
+
+const path = require('path');
+const fs = require('fs');
+const url = require('url');
+
+// Make sure any symlinks in the project folder are resolved:
+// https://github.com/facebookincubator/create-react-app/issues/637
+const appDirectory = fs.realpathSync(process.cwd());
+const resolveApp = relativePath => path.resolve(appDirectory, relativePath);
+
+const envPublicUrl = process.env.PUBLIC_URL;
+
+function ensureSlash(path, needsSlash) {
+  const hasSlash = path.endsWith('/');
+  if (hasSlash && !needsSlash) {
+    return path.substr(path, path.length - 1);
+  } else if (!hasSlash && needsSlash) {
+    return `${path}/`;
+  } else {
+    return path;
+  }
+}
+
+const getPublicUrl = appPackageJson =>
+  envPublicUrl || require(appPackageJson).homepage;
+
+// We use `PUBLIC_URL` environment variable or "homepage" field to infer
+// "public path" at which the app is served.
+// Webpack needs to know it to put the right <script> hrefs into HTML even in
+// single-page apps that may serve index.html for nested URLs like /todos/42.
+// We can't use a relative path in HTML because we don't want to load something
+// like /todos/42/static/js/bundle.7289d.js. We have to know the root.
+function getServedPath(appPackageJson) {
+  const publicUrl = getPublicUrl(appPackageJson);
+  const servedUrl =
+    envPublicUrl || (publicUrl ? url.parse(publicUrl).pathname : '/');
+  return ensureSlash(servedUrl, true);
+}
+
+// config after eject: we're in ./config/
+module.exports = {
+  dotenv: resolveApp('.env'),
+  appBuild: resolveApp('build'),
+  appPublic: resolveApp('public'),
+  appHtml: resolveApp('public/index.html'),
+  appIndexJs: resolveApp('src/index.js'),
+  appPackageJson: resolveApp('package.json'),
+  appSrc: resolveApp('src'),
+  yarnLockFile: resolveApp('yarn.lock'),
+  testsSetup: resolveApp('src/setupTests.js'),
+  appNodeModules: resolveApp('node_modules'),
+  publicUrl: getPublicUrl(resolveApp('package.json')),
+  servedPath: getServedPath(resolveApp('package.json')),
+};

config/polyfills.js

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+'use strict';
+
+if (typeof Promise === 'undefined') {
+  // Rejection tracking prevents a common issue where React gets into an
+  // inconsistent state due to an error, but it gets swallowed by a Promise,
+  // and the user has no idea what causes React's erratic future behavior.
+  require('promise/lib/rejection-tracking').enable();
+  window.Promise = require('promise/lib/es6-extensions.js');
+}
+
+// fetch() polyfill for making API calls.
+require('whatwg-fetch');
+
+// Object.assign() is commonly used with React.
+// It will use the native implementation if it's present and isn't buggy.
+Object.assign = require('object-assign');
+
+// In tests, polyfill requestAnimationFrame since jsdom doesn't provide it yet.
+// We don't polyfill it in the browser--this is user's responsibility.
+if (process.env.NODE_ENV === 'test') {
+  require('raf').polyfill(global);
+}

config/webpack.config.dev.js

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+'use strict';
+
+const autoprefixer = require('autoprefixer');
+const path = require('path');
+const webpack = require('webpack');
+const HtmlWebpackPlugin = require('html-webpack-plugin');
+const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
+const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
+const WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeModulesPlugin');
+const eslintFormatter = require('react-dev-utils/eslintFormatter');
+const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
+const getClientEnvironment = require('./env');
+const paths = require('./paths');
+
+// Webpack uses `publicPath` to determine where the app is being served from.
+// In development, we always serve from the root. This makes config easier.
+const publicPath = '/';
+// `publicUrl` is just like `publicPath`, but we will provide it to our app
+// as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
+// Omit trailing slash as %PUBLIC_PATH%/xyz looks better than %PUBLIC_PATH%xyz.
+const publicUrl = '';
+// Get environment variables to inject into our app.
+const env = getClientEnvironment(publicUrl);
+
+// This is the development configuration.
+// It is focused on developer experience and fast rebuilds.
+// The production configuration is different and lives in a separate file.
+module.exports = {
+  // You may want 'eval' instead if you prefer to see the compiled output in DevTools.
+  // See the discussion in https://github.com/facebookincubator/create-react-app/issues/343.
+  devtool: 'cheap-module-source-map',
+  // These are the "entry points" to our application.
+  // This means they will be the "root" imports that are included in JS bundle.
+  // The first two entry points enable "hot" CSS and auto-refreshes for JS.
+  entry: [
+    // We ship a few polyfills by default:
+    require.resolve('./polyfills'),
+    // Include an alternative client for WebpackDevServer. A client's job is to
+    // connect to WebpackDevServer by a socket and get notified about changes.
+    // When you save a file, the client will either apply hot updates (in case
+    // of CSS changes), or refresh the page (in case of JS changes). When you
+    // make a syntax error, this client will display a syntax error overlay.
+    // Note: instead of the default WebpackDevServer client, we use a custom one
+    // to bring better experience for Create React App users. You can replace
+    // the line below with these two lines if you prefer the stock client:
+    // require.resolve('webpack-dev-server/client') + '?/',
+    // require.resolve('webpack/hot/dev-server'),
+    require.resolve('react-dev-utils/webpackHotDevClient'),
+    // Finally, this is your app's code:
+    paths.appIndexJs,
+    // We include the app code last so that if there is a runtime error during
+    // initialization, it doesn't blow up the WebpackDevServer client, and
+    // changing JS code would still trigger a refresh.
+  ],
+  output: {
+    // Add /* filename */ comments to generated require()s in the output.
+    pathinfo: true,
+    // This does not produce a real file. It's just the virtual path that is
+    // served by WebpackDevServer in development. This is the JS bundle
+    // containing code from all our entry points, and the Webpack runtime.
+    filename: 'static/js/bundle.js',
+    // There are also additional JS chunk files if you use code splitting.
+    chunkFilename: 'static/js/[name].chunk.js',
+    // This is the URL that app is served from. We use "/" in development.
+    publicPath: publicPath,
+    // Point sourcemap entries to original disk location (format as URL on Windows)
+    devtoolModuleFilenameTemplate: info =>
+      path.resolve(info.absoluteResourcePath).replace(/\\/g, '/'),
+  },
+  resolve: {
+    // This allows you to set a fallback for where Webpack should look for modules.
+    // We placed these paths second because we want `node_modules` to "win"
+    // if there are any conflicts. This matches Node resolution mechanism.
+    // https://github.com/facebookincubator/create-react-app/issues/253
+    modules: ['node_modules', paths.appNodeModules].concat(
+      // It is guaranteed to exist because we tweak it in `env.js`
+      process.env.NODE_PATH.split(path.delimiter).filter(Boolean)
+    ),
+    // These are the reasonable defaults supported by the Node ecosystem.
+    // We also include JSX as a common component filename extension to support
+    // some tools, although we do not recommend using it, see:
+    // https://github.com/facebookincubator/create-react-app/issues/290
+    // `web` extension prefixes have been added for better support
+    // for React Native Web.
+    extensions: ['.web.js', '.mjs', '.js', '.json', '.web.jsx', '.jsx'],
+    alias: {
+      
+      // Support React Native Web
+      // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
+      'react-native': 'react-native-web',
+    },
+    plugins: [
+      // Prevents users from importing files from outside of src/ (or node_modules/).
+      // This often causes confusion because we only process files within src/ with babel.
+      // To fix this, we prevent you from importing files out of src/ -- if you'd like to,
+      // please link the files into your node_modules/ and let module-resolution kick in.
+      // Make sure your source files are compiled, as they will not be processed in any way.
+      new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson]),
+    ],
+  },
+  module: {
+    strictExportPresence: true,
+    rules: [
+      // TODO: Disable require.ensure as it's not a standard language feature.
+      // We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176.
+      // { parser: { requireEnsure: false } },
+
+      // First, run the linter.
+      // It's important to do this before Babel processes the JS.
+      {
+        test: /\.(js|jsx|mjs)$/,
+        enforce: 'pre',
+        use: [
+          {
+            options: {
+              formatter: eslintFormatter,
+              eslintPath: require.resolve('eslint'),
+              
+            },
+            loader: require.resolve('eslint-loader'),
+          },
+        ],
+        include: paths.appSrc,
+      },
+      {
+        // "oneOf" will traverse all following loaders until one will
+        // match the requirements. When no loader matches it will fall
+        // back to the "file" loader at the end of the loader list.
+        oneOf: [
+          // "url" loader works like "file" loader except that it embeds assets
+          // smaller than specified limit in bytes as data URLs to avoid requests.
+          // A missing `test` is equivalent to a match.
+          {
+            test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
+            loader: require.resolve('url-loader'),
+            options: {
+              limit: 10000,
+              name: 'static/media/[name].[hash:8].[ext]',
+            },
+          },
+          // Process JS with Babel.
+          {
+            test: /\.(js|jsx|mjs)$/,
+            include: paths.appSrc,
+            loader: require.resolve('babel-loader'),
+            options: {
+              
+              // This is a feature of `babel-loader` for webpack (not Babel itself).
+              // It enables caching results in ./node_modules/.cache/babel-loader/
+              // directory for faster rebuilds.
+              cacheDirectory: true,
+            },
+          },
+          // "postcss" loader applies autoprefixer to our CSS.
+          // "css" loader resolves paths in CSS and adds assets as dependencies.
+          // "style" loader turns CSS into JS modules that inject <style> tags.
+          // In production, we use a plugin to extract that CSS to a file, but
+          // in development "style" loader enables hot editing of CSS.
+          {
+            test: /\.css$/,
+            use: [
+              require.resolve('style-loader'),
+              {
+                loader: require.resolve('css-loader'),
+                options: {
+                  importLoaders: 1,
+                },
+              },
+              {
+                loader: require.resolve('postcss-loader'),
+                options: {
+                  // Necessary for external CSS imports to work
+                  // https://github.com/facebookincubator/create-react-app/issues/2677
+                  ident: 'postcss',
+                  plugins: () => [
+                    require('postcss-flexbugs-fixes'),
+                    autoprefixer({
+                      browsers: [
+                        '>1%',
+                        'last 4 versions',
+                        'Firefox ESR',
+                        'not ie < 9', // React doesn't support IE8 anyway
+                      ],
+                      flexbox: 'no-2009',
+                    }),
+                  ],
+                },
+              },
+            ],
+          },
+          // "file" loader makes sure those assets get served by WebpackDevServer.
+          // When you `import` an asset, you get its (virtual) filename.
+          // In production, they would get copied to the `build` folder.
+          // This loader doesn't use a "test" so it will catch all modules
+          // that fall through the other loaders.
+          {
+            // Exclude `js` files to keep "css" loader working as it injects
+            // its runtime that would otherwise processed through "file" loader.
+            // Also exclude `html` and `json` extensions so they get processed
+            // by webpacks internal loaders.
+            exclude: [/\.(js|jsx|mjs)$/, /\.html$/, /\.json$/],
+            loader: require.resolve('file-loader'),
+            options: {
+              name: 'static/media/[name].[hash:8].[ext]',
+            },
+          },
+        ],
+      },
+      // ** STOP ** Are you adding a new loader?
+      // Make sure to add the new loader(s) before the "file" loader.
+    ],
+  },
+  plugins: [
+    // Makes some environment variables available in index.html.
+    // The public URL is available as %PUBLIC_URL% in index.html, e.g.:
+    // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
+    // In development, this will be an empty string.
+    new InterpolateHtmlPlugin(env.raw),
+    // Generates an `index.html` file with the <script> injected.
+    new HtmlWebpackPlugin({
+      inject: true,
+      template: paths.appHtml,
+    }),
+    // Add module names to factory functions so they appear in browser profiler.
+    new webpack.NamedModulesPlugin(),
+    // Makes some environment variables available to the JS code, for example:
+    // if (process.env.NODE_ENV === 'development') { ... }. See `./env.js`.
+    new webpack.DefinePlugin(env.stringified),
+    // This is necessary to emit hot updates (currently CSS only):
+    new webpack.HotModuleReplacementPlugin(),
+    // Watcher doesn't work well if you mistype casing in a path so we use
+    // a plugin that prints an error when you attempt to do this.
+    // See https://github.com/facebookincubator/create-react-app/issues/240
+    new CaseSensitivePathsPlugin(),
+    // If you require a missing module and then `npm install` it, you still have
+    // to restart the development server for Webpack to discover it. This plugin
+    // makes the discovery automatic so you don't have to restart.
+    // See https://github.com/facebookincubator/create-react-app/issues/186
+    new WatchMissingNodeModulesPlugin(paths.appNodeModules),
+    // Moment.js is an extremely popular library that bundles large locale files
+    // by default due to how Webpack interprets its code. This is a practical
+    // solution that requires the user to opt into importing specific locales.
+    // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
+    // You can remove this if you don't use Moment.js:
+    new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
+  ],
+  // Some libraries import Node modules but don't use them in the browser.
+  // Tell Webpack to provide empty mocks for them so importing them works.
+  node: {
+    dgram: 'empty',
+    fs: 'empty',
+    net: 'empty',
+    tls: 'empty',
+    child_process: 'empty',
+  },
+  // Turn off performance hints during development because we don't do any
+  // splitting or minification in interest of speed. These warnings become
+  // cumbersome.
+  performance: {
+    hints: false,
+  },
+};

config/webpack.config.prod.js

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+'use strict';
+
+const autoprefixer = require('autoprefixer');
+const path = require('path');
+const webpack = require('webpack');
+const HtmlWebpackPlugin = require('html-webpack-plugin');
+const ExtractTextPlugin = require('extract-text-webpack-plugin');
+const ManifestPlugin = require('webpack-manifest-plugin');
+const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
+const SWPrecacheWebpackPlugin = require('sw-precache-webpack-plugin');
+const eslintFormatter = require('react-dev-utils/eslintFormatter');
+const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
+const paths = require('./paths');
+const getClientEnvironment = require('./env');
+
+// Webpack uses `publicPath` to determine where the app is being served from.
+// It requires a trailing slash, or the file assets will get an incorrect path.
+const publicPath = paths.servedPath;
+// Some apps do not use client-side routing with pushState.
+// For these, "homepage" can be set to "." to enable relative asset paths.
+const shouldUseRelativeAssetPaths = publicPath === './';
+// Source maps are resource heavy and can cause out of memory issue for large source files.
+const shouldUseSourceMap = process.env.GENERATE_SOURCEMAP !== 'false';
+// `publicUrl` is just like `publicPath`, but we will provide it to our app
+// as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
+// Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.
+const publicUrl = publicPath.slice(0, -1);
+// Get environment variables to inject into our app.
+const env = getClientEnvironment(publicUrl);
+
+// Assert this just to be safe.
+// Development builds of React are slow and not intended for production.
+if (env.stringified['process.env'].NODE_ENV !== '"production"') {
+  throw new Error('Production builds must have NODE_ENV=production.');
+}
+
+// Note: defined here because it will be used more than once.
+const cssFilename = 'static/css/[name].[contenthash:8].css';
+
+// ExtractTextPlugin expects the build output to be flat.
+// (See https://github.com/webpack-contrib/extract-text-webpack-plugin/issues/27)
+// However, our output is structured with css, js and media folders.
+// To have this structure working with relative paths, we have to use custom options.
+const extractTextPluginOptions = shouldUseRelativeAssetPaths
+  ? // Making sure that the publicPath goes back to to build folder.
+    { publicPath: Array(cssFilename.split('/').length).join('../') }
+  : {};
+
+// This is the production configuration.
+// It compiles slowly and is focused on producing a fast and minimal bundle.
+// The development configuration is different and lives in a separate file.
+module.exports = {
+  // Don't attempt to continue if there are any errors.
+  bail: true,
+  // We generate sourcemaps in production. This is slow but gives good results.
+  // You can exclude the *.map files from the build during deployment.
+  devtool: shouldUseSourceMap ? 'source-map' : false,
+  // In production, we only want to load the polyfills and the app code.
+  entry: [require.resolve('./polyfills'), paths.appIndexJs],
+  output: {
+    // The build folder.
+    path: paths.appBuild,
+    // Generated JS file names (with nested folders).
+    // There will be one main bundle, and one file per asynchronous chunk.
+    // We don't currently advertise code splitting but Webpack supports it.
+    filename: 'static/js/[name].[chunkhash:8].js',
+    chunkFilename: 'static/js/[name].[chunkhash:8].chunk.js',
+    // We inferred the "public path" (such as / or /my-project) from homepage.
+    publicPath: publicPath,
+    // Point sourcemap entries to original disk location (format as URL on Windows)
+    devtoolModuleFilenameTemplate: info =>
+      path
+        .relative(paths.appSrc, info.absoluteResourcePath)
+        .replace(/\\/g, '/'),
+  },
+  resolve: {
+    // This allows you to set a fallback for where Webpack should look for modules.
+    // We placed these paths second because we want `node_modules` to "win"
+    // if there are any conflicts. This matches Node resolution mechanism.
+    // https://github.com/facebookincubator/create-react-app/issues/253
+    modules: ['node_modules', paths.appNodeModules].concat(
+      // It is guaranteed to exist because we tweak it in `env.js`
+      process.env.NODE_PATH.split(path.delimiter).filter(Boolean)
+    ),
+    // These are the reasonable defaults supported by the Node ecosystem.
+    // We also include JSX as a common component filename extension to support
+    // some tools, although we do not recommend using it, see:
+    // https://github.com/facebookincubator/create-react-app/issues/290
+    // `web` extension prefixes have been added for better support
+    // for React Native Web.
+    extensions: ['.web.js', '.mjs', '.js', '.json', '.web.jsx', '.jsx'],
+    alias: {
+      
+      // Support React Native Web
+      // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
+      'react-native': 'react-native-web',
+    },
+    plugins: [
+      // Prevents users from importing files from outside of src/ (or node_modules/).
+      // This often causes confusion because we only process files within src/ with babel.
+      // To fix this, we prevent you from importing files out of src/ -- if you'd like to,
+      // please link the files into your node_modules/ and let module-resolution kick in.
+      // Make sure your source files are compiled, as they will not be processed in any way.
+      new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson]),
+    ],
+  },
+  module: {
+    strictExportPresence: true,
+    rules: [
+      // TODO: Disable require.ensure as it's not a standard language feature.
+      // We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176.
+      // { parser: { requireEnsure: false } },
+
+      // First, run the linter.
+      // It's important to do this before Babel processes the JS.
+      {
+        test: /\.(js|jsx|mjs)$/,
+        enforce: 'pre',
+        use: [
+          {
+            options: {
+              formatter: eslintFormatter,
+              eslintPath: require.resolve('eslint'),
+              
+            },
+            loader: require.resolve('eslint-loader'),
+          },
+        ],
+        include: paths.appSrc,
+      },
+      {
+        // "oneOf" will traverse all following loaders until one will
+        // match the requirements. When no loader matches it will fall
+        // back to the "file" loader at the end of the loader list.
+        oneOf: [
+          // "url" loader works just like "file" loader but it also embeds
+          // assets smaller than specified size as data URLs to avoid requests.
+          {
+            test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
+            loader: require.resolve('url-loader'),
+            options: {
+              limit: 10000,
+              name: 'static/media/[name].[hash:8].[ext]',
+            },
+          },
+          // Process JS with Babel.
+          {
+            test: /\.(js|jsx|mjs)$/,
+            include: paths.appSrc,
+            loader: require.resolve('babel-loader'),
+            options: {
+              
+              compact: true,
+            },
+          },
+          // The notation here is somewhat confusing.
+          // "postcss" loader applies autoprefixer to our CSS.
+          // "css" loader resolves paths in CSS and adds assets as dependencies.
+          // "style" loader normally turns CSS into JS modules injecting <style>,
+          // but unlike in development configuration, we do something different.
+          // `ExtractTextPlugin` first applies the "postcss" and "css" loaders
+          // (second argument), then grabs the result CSS and puts it into a
+          // separate file in our build process. This way we actually ship
+          // a single CSS file in production instead of JS code injecting <style>
+          // tags. If you use code splitting, however, any async bundles will still
+          // use the "style" loader inside the async code so CSS from them won't be
+          // in the main CSS file.
+          {
+            test: /\.css$/,
+            loader: ExtractTextPlugin.extract(
+              Object.assign(
+                {
+                  fallback: {
+                    loader: require.resolve('style-loader'),
+                    options: {
+                      hmr: false,
+                    },
+                  },
+                  use: [
+                    {
+                      loader: require.resolve('css-loader'),
+                      options: {
+                        importLoaders: 1,
+                        minimize: true,
+                        sourceMap: shouldUseSourceMap,
+                      },
+                    },
+                    {
+                      loader: require.resolve('postcss-loader'),
+                      options: {
+                        // Necessary for external CSS imports to work
+                        // https://github.com/facebookincubator/create-react-app/issues/2677
+                        ident: 'postcss',
+                        plugins: () => [
+                          require('postcss-flexbugs-fixes'),
+                          autoprefixer({
+                            browsers: [
+                              '>1%',
+                              'last 4 versions',
+                              'Firefox ESR',
+                              'not ie < 9', // React doesn't support IE8 anyway
+                            ],
+                            flexbox: 'no-2009',
+                          }),
+                        ],
+                      },
+                    },
+                  ],
+                },
+                extractTextPluginOptions
+              )
+            ),
+            // Note: this won't work without `new ExtractTextPlugin()` in `plugins`.
+          },
+          // "file" loader makes sure assets end up in the `build` folder.
+          // When you `import` an asset, you get its filename.
+          // This loader doesn't use a "test" so it will catch all modules
+          // that fall through the other loaders.
+          {
+            loader: require.resolve('file-loader'),
+            // Exclude `js` files to keep "css" loader working as it injects
+            // it's runtime that would otherwise processed through "file" loader.
+            // Also exclude `html` and `json` extensions so they get processed
+            // by webpacks internal loaders.
+            exclude: [/\.(js|jsx|mjs)$/, /\.html$/, /\.json$/],
+            options: {
+              name: 'static/media/[name].[hash:8].[ext]',
+            },
+          },
+          // ** STOP ** Are you adding a new loader?
+          // Make sure to add the new loader(s) before the "file" loader.
+        ],
+      },
+    ],
+  },
+  plugins: [
+    // Makes some environment variables available in index.html.
+    // The public URL is available as %PUBLIC_URL% in index.html, e.g.:
+    // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
+    // In production, it will be an empty string unless you specify "homepage"
+    // in `package.json`, in which case it will be the pathname of that URL.
+    new InterpolateHtmlPlugin(env.raw),
+    // Generates an `index.html` file with the <script> injected.
+    new HtmlWebpackPlugin({
+      inject: true,
+      template: paths.appHtml,
+      minify: {
+        removeComments: true,
+        collapseWhitespace: true,
+        removeRedundantAttributes: true,
+        useShortDoctype: true,
+        removeEmptyAttributes: true,
+        removeStyleLinkTypeAttributes: true,
+        keepClosingSlash: true,
+        minifyJS: true,
+        minifyCSS: true,
+        minifyURLs: true,
+      },
+    }),
+    // Makes some environment variables available to the JS code, for example:
+    // if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
+    // It is absolutely essential that NODE_ENV was set to production here.
+    // Otherwise React will be compiled in the very slow development mode.
+    new webpack.DefinePlugin(env.stringified),
+    // Minify the code.
+    new webpack.optimize.UglifyJsPlugin({
+      compress: {
+        warnings: false,
+        // Disabled because of an issue with Uglify breaking seemingly valid code:
+        // https://github.com/facebookincubator/create-react-app/issues/2376
+        // Pending further investigation:
+        // https://github.com/mishoo/UglifyJS2/issues/2011
+        comparisons: false,
+      },
+      mangle: {
+        safari10: true,
+      },
+      output: {
+        comments: false,
+        // Turned on because emoji and regex is not minified properly using default
+        // https://github.com/facebookincubator/create-react-app/issues/2488
+        ascii_only: true,
+      },
+      sourceMap: shouldUseSourceMap,
+    }),
+    // Note: this won't work without ExtractTextPlugin.extract(..) in `loaders`.
+    new ExtractTextPlugin({
+      filename: cssFilename,
+    }),
+    // Generate a manifest file which contains a mapping of all asset filenames
+    // to their corresponding output file so that tools can pick it up without
+    // having to parse `index.html`.
+    new ManifestPlugin({
+      fileName: 'asset-manifest.json',
+    }),
+    // Generate a service worker script that will precache, and keep up to date,
+    // the HTML & assets that are part of the Webpack build.
+    new SWPrecacheWebpackPlugin({
+      // By default, a cache-busting query parameter is appended to requests
+      // used to populate the caches, to ensure the responses are fresh.
+      // If a URL is already hashed by Webpack, then there is no concern
+      // about it being stale, and the cache-busting can be skipped.
+      dontCacheBustUrlsMatching: /\.\w{8}\./,
+      filename: 'service-worker.js',
+      logger(message) {
+        if (message.indexOf('Total precache size is') === 0) {
+          // This message occurs for every build and is a bit too noisy.
+          return;
+        }
+        if (message.indexOf('Skipping static resource') === 0) {
+          // This message obscures real errors so we ignore it.
+          // https://github.com/facebookincubator/create-react-app/issues/2612
+          return;
+        }
+        console.log(message);
+      },
+      minify: true,
+      // For unknown URLs, fallback to the index page
+      navigateFallback: publicUrl + '/index.html',
+      // Ignores URLs starting from /__ (useful for Firebase):
+      // https://github.com/facebookincubator/create-react-app/issues/2237#issuecomment-302693219
+      navigateFallbackWhitelist: [/^(?!\/__).*/],
+      // Don't precache sourcemaps (they're large) and build asset manifest:
+      staticFileGlobsIgnorePatterns: [/\.map$/, /asset-manifest\.json$/],
+    }),
+    // Moment.js is an extremely popular library that bundles large locale files
+    // by default due to how Webpack interprets its code. This is a practical
+    // solution that requires the user to opt into importing specific locales.
+    // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
+    // You can remove this if you don't use Moment.js:
+    new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
+  ],
+  // Some libraries import Node modules but don't use them in the browser.
+  // Tell Webpack to provide empty mocks for them so importing them works.
+  node: {
+    dgram: 'empty',
+    fs: 'empty',
+    net: 'empty',
+    tls: 'empty',
+    child_process: 'empty',
+  },
+};

config/webpackDevServer.config.js

@@ -0,0 +1,95 @@
+'use strict';
+
+const errorOverlayMiddleware = require('react-dev-utils/errorOverlayMiddleware');
+const noopServiceWorkerMiddleware = require('react-dev-utils/noopServiceWorkerMiddleware');
+const ignoredFiles = require('react-dev-utils/ignoredFiles');
+const config = require('./webpack.config.dev');
+const paths = require('./paths');
+
+const protocol = process.env.HTTPS === 'true' ? 'https' : 'http';
+const host = process.env.HOST || '0.0.0.0';
+
+module.exports = function(proxy, allowedHost) {
+  return {
+    // WebpackDevServer 2.4.3 introduced a security fix that prevents remote
+    // websites from potentially accessing local content through DNS rebinding:
+    // https://github.com/webpack/webpack-dev-server/issues/887
+    // https://medium.com/webpack/webpack-dev-server-middleware-security-issues-1489d950874a
+    // However, it made several existing use cases such as development in cloud
+    // environment or subdomains in development significantly more complicated:
+    // https://github.com/facebookincubator/create-react-app/issues/2271
+    // https://github.com/facebookincubator/create-react-app/issues/2233
+    // While we're investigating better solutions, for now we will take a
+    // compromise. Since our WDS configuration only serves files in the `public`
+    // folder we won't consider accessing them a vulnerability. However, if you
+    // use the `proxy` feature, it gets more dangerous because it can expose
+    // remote code execution vulnerabilities in backends like Django and Rails.
+    // So we will disable the host check normally, but enable it if you have
+    // specified the `proxy` setting. Finally, we let you override it if you
+    // really know what you're doing with a special environment variable.
+    disableHostCheck:
+      !proxy || process.env.DANGEROUSLY_DISABLE_HOST_CHECK === 'true',
+    // Enable gzip compression of generated files.
+    compress: true,
+    // Silence WebpackDevServer's own logs since they're generally not useful.
+    // It will still show compile warnings and errors with this setting.
+    clientLogLevel: 'none',
+    // By default WebpackDevServer serves physical files from current directory
+    // in addition to all the virtual build products that it serves from memory.
+    // This is confusing because those files won’t automatically be available in
+    // production build folder unless we copy them. However, copying the whole
+    // project directory is dangerous because we may expose sensitive files.
+    // Instead, we establish a convention that only files in `public` directory
+    // get served. Our build script will copy `public` into the `build` folder.
+    // In `index.html`, you can get URL of `public` folder with %PUBLIC_URL%:
+    // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
+    // In JavaScript code, you can access it with `process.env.PUBLIC_URL`.
+    // Note that we only recommend to use `public` folder as an escape hatch
+    // for files like `favicon.ico`, `manifest.json`, and libraries that are
+    // for some reason broken when imported through Webpack. If you just want to
+    // use an image, put it in `src` and `import` it from JavaScript instead.
+    contentBase: paths.appPublic,
+    // By default files from `contentBase` will not trigger a page reload.
+    watchContentBase: true,
+    // Enable hot reloading server. It will provide /sockjs-node/ endpoint
+    // for the WebpackDevServer client so it can learn when the files were
+    // updated. The WebpackDevServer client is included as an entry point
+    // in the Webpack development configuration. Note that only changes
+    // to CSS are currently hot reloaded. JS changes will refresh the browser.
+    hot: true,
+    // It is important to tell WebpackDevServer to use the same "root" path
+    // as we specified in the config. In development, we always serve from /.
+    publicPath: config.output.publicPath,
+    // WebpackDevServer is noisy by default so we emit custom message instead
+    // by listening to the compiler events with `compiler.plugin` calls above.
+    quiet: true,
+    // Reportedly, this avoids CPU overload on some systems.
+    // https://github.com/facebookincubator/create-react-app/issues/293
+    // src/node_modules is not ignored to support absolute imports
+    // https://github.com/facebookincubator/create-react-app/issues/1065
+    watchOptions: {
+      ignored: ignoredFiles(paths.appSrc),
+    },
+    // Enable HTTPS if the HTTPS environment variable is set to 'true'
+    https: protocol === 'https',
+    host: host,
+    overlay: false,
+    historyApiFallback: {
+      // Paths with dots should still use the history fallback.
+      // See https://github.com/facebookincubator/create-react-app/issues/387.
+      disableDotRule: true,
+    },
+    public: allowedHost,
+    proxy,
+    before(app) {
+      // This lets us open files from the runtime error overlay.
+      app.use(errorOverlayMiddleware());
+      // This service worker file is effectively a 'no-op' that will reset any
+      // previous service worker registered for the same host:port combination.
+      // We do this in development to avoid hitting the production cache if
+      // it used the same host and port.
+      // https://github.com/facebookincubator/create-react-app/issues/2272#issuecomment-302832432
+      app.use(noopServiceWorkerMiddleware());
+    },
+  };
+};

package-lock.json

@@ -4,6 +4,21 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "@babel/runtime": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.0.0.tgz",
+      "integrity": "sha512-7hGhzlcmg01CvH1EHdSPVXYX1aJ8KCEyz6I9xYIi/asDtzBPMyMhVibhM/K6g/5qnKBwjZtp10bNZIEFTRW1MA==",
+      "requires": {
+        "regenerator-runtime": "^0.12.0"
+      },
+      "dependencies": {
+        "regenerator-runtime": {
+          "version": "0.12.1",
+          "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.12.1.tgz",
+          "integrity": "sha512-odxIc1/vDlo4iZcfXqRYFj0vpXFNoGdKMAUieAlFYO6m/nl5e9KR/beGf41z4a1FI+aQgtjhuaSlDxQ0hmkrHg=="
+        }
+      }
+    },
     "abab": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/abab/-/abab-1.0.4.tgz",
@@ -1368,6 +1383,39 @@
         "repeat-element": "^1.1.2"
       }
     },
+    "braft-convert": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/braft-convert/-/braft-convert-2.0.2.tgz",
+      "integrity": "sha512-i3dsu210MKYXa/458q3HfarVNMz8KFxCs5smzhnocqw+D56dhArvtINDWHwdiSzo2vhiATU5D07dAiS1MZQp7g==",
+      "requires": {
+        "draft-convert": "^2.0.0",
+        "draft-js": "^0.10.3"
+      }
+    },
+    "braft-editor": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/braft-editor/-/braft-editor-2.0.5.tgz",
+      "integrity": "sha512-YAEm+KPHuQZpUK2/SE/Z1pIBTzyTlIcMRHyW1ljwVkjUroOAI/IVnn2Se+b9E+Vdwzz3Bx7npDpXsrMgKB7vgQ==",
+      "requires": {
+        "@babel/runtime": "^7.0.0",
+        "braft-convert": "^2.0.2",
+        "braft-finder": "^0.0.9",
+        "braft-utils": "^0.0.16",
+        "draft-convert": "^2.0.0",
+        "draft-js": "^0.10.3",
+        "draftjs-utils": "^0.9.4"
+      }
+    },
+    "braft-finder": {
+      "version": "0.0.9",
+      "resolved": "https://registry.npmjs.org/braft-finder/-/braft-finder-0.0.9.tgz",
+      "integrity": "sha512-AIXHxp3dcfw0AOdUbYcXgIdVO6+IcuySZbrDemnUukUFr01G9pX9vLbYr+ESnI5CH8nYq6giQ1feIuVFcgNu7Q=="
+    },
+    "braft-utils": {
+      "version": "0.0.16",
+      "resolved": "https://registry.npmjs.org/braft-utils/-/braft-utils-0.0.16.tgz",
+      "integrity": "sha512-ccN4XoHmoQe3OS2GdwmA6RFBMobgH3v312+ks5uKGsCyJjRTVrWmYbzS0i0FduhvTYNsq04ah6E+or01K+P0dA=="
+    },
     "brorand": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/brorand/-/brorand-1.1.0.tgz",
@@ -2945,6 +2993,30 @@
       "resolved": "https://registry.npmjs.org/dotenv-expand/-/dotenv-expand-4.2.0.tgz",
       "integrity": "sha1-3vHxyl1gWdJKdm5YeULCEQbOEnU="
     },
+    "draft-convert": {
+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/draft-convert/-/draft-convert-2.1.4.tgz",
+      "integrity": "sha1-uIFwAOryUelVg8mHrdoIXWclSg0=",
+      "requires": {
+        "immutable": "~3.7.4",
+        "invariant": "^2.2.1"
+      }
+    },
+    "draft-js": {
+      "version": "0.10.5",
+      "resolved": "https://registry.npmjs.org/draft-js/-/draft-js-0.10.5.tgz",
+      "integrity": "sha512-LE6jSCV9nkPhfVX2ggcRLA4FKs6zWq9ceuO/88BpXdNCS7mjRTgs0NsV6piUCJX9YxMsB9An33wnkMmU2sD2Zg==",
+      "requires": {
+        "fbjs": "^0.8.15",
+        "immutable": "~3.7.4",
+        "object-assign": "^4.1.0"
+      }
+    },
+    "draftjs-utils": {
+      "version": "0.9.4",
+      "resolved": "https://registry.npmjs.org/draftjs-utils/-/draftjs-utils-0.9.4.tgz",
+      "integrity": "sha512-KYjABSbGpJrwrwmxVj5UhfV37MF/p0QRxKIyL+/+QOaJ8J9z1FBKxkblThbpR0nJi9lxPQWGg+gh+v0dAsSCCg=="
+    },
     "duplexer": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/duplexer/-/duplexer-0.1.1.tgz",
@@ -3004,6 +3076,14 @@
       "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
       "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k="
     },
+    "encoding": {
+      "version": "0.1.12",
+      "resolved": "https://registry.npmjs.org/encoding/-/encoding-0.1.12.tgz",
+      "integrity": "sha1-U4tm8+5izRq1HsMjgp0flIDHS+s=",
+      "requires": {
+        "iconv-lite": "~0.4.13"
+      }
+    },
     "enhanced-resolve": {
       "version": "3.4.1",
       "resolved": "https://registry.npmjs.org/enhanced-resolve/-/enhanced-resolve-3.4.1.tgz",
@@ -3729,6 +3809,35 @@
         "bser": "^2.0.0"
       }
     },
+    "fbjs": {
+      "version": "0.8.17",
+      "resolved": "https://registry.npmjs.org/fbjs/-/fbjs-0.8.17.tgz",
+      "integrity": "sha1-xNWY6taUkRJlPWWIsBpc3Nn5D90=",
+      "requires": {
+        "core-js": "^1.0.0",
+        "isomorphic-fetch": "^2.1.1",
+        "loose-envify": "^1.0.0",
+        "object-assign": "^4.1.0",
+        "promise": "^7.1.1",
+        "setimmediate": "^1.0.5",
+        "ua-parser-js": "^0.7.18"
+      },
+      "dependencies": {
+        "core-js": {
+          "version": "1.2.7",
+          "resolved": "https://registry.npmjs.org/core-js/-/core-js-1.2.7.tgz",
+          "integrity": "sha1-ZSKUwUZR2yj6k70tX/KYOk8IxjY="
+        },
+        "promise": {
+          "version": "7.3.1",
+          "resolved": "https://registry.npmjs.org/promise/-/promise-7.3.1.tgz",
+          "integrity": "sha512-nolQXZ/4L+bP/UGlkfaIujX9BKxGwmQ9OT4mOt5yvy8iK1h3wqTEJCijzGANTCCl9nWjY41juyAn2K3Q1hLLTg==",
+          "requires": {
+            "asap": "~2.0.3"
+          }
+        }
+      }
+    },
     "figures": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/figures/-/figures-2.0.0.tgz",
@@ -4913,6 +5022,11 @@
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-3.3.10.tgz",
       "integrity": "sha512-Pgs951kaMm5GXP7MOvxERINe3gsaVjUWFm+UZPSq9xYriQAksyhg0csnS0KXSNRD5NmNdapXEpjxG49+AKh/ug=="
     },
+    "immutable": {
+      "version": "3.7.6",
+      "resolved": "https://registry.npmjs.org/immutable/-/immutable-3.7.6.tgz",
+      "integrity": "sha1-E7TTyxK++hVIKib+Gy665kAHHks="
+    },
     "import-lazy": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/import-lazy/-/import-lazy-2.1.0.tgz",
@@ -5349,6 +5463,15 @@
         "isarray": "1.0.0"
       }
     },
+    "isomorphic-fetch": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/isomorphic-fetch/-/isomorphic-fetch-2.2.1.tgz",
+      "integrity": "sha1-YRrhrPFPXoH3KVB0coGf6XM1WKk=",
+      "requires": {
+        "node-fetch": "^1.0.1",
+        "whatwg-fetch": ">=0.10.0"
+      }
+    },
     "isstream": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/isstream/-/isstream-0.1.2.tgz",
@@ -6427,6 +6550,15 @@
         "lower-case": "^1.1.1"
       }
     },
+    "node-fetch": {
+      "version": "1.7.3",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-1.7.3.tgz",
+      "integrity": "sha512-NhZ4CsKx7cYm2vSrBAr2PvFOe6sWDf0UYLRqA6svUYg7+/TSfVAu49jYC4BvQ4Sms9SZgdqGBgroqfDhJdTyKQ==",
+      "requires": {
+        "encoding": "^0.1.11",
+        "is-stream": "^1.0.1"
+      }
+    },
     "node-forge": {
       "version": "0.7.5",
       "resolved": "https://registry.npmjs.org/node-forge/-/node-forge-0.7.5.tgz",
@@ -8423,52 +8555,6 @@
       "resolved": "https://registry.npmjs.org/react-error-overlay/-/react-error-overlay-4.0.1.tgz",
       "integrity": "sha512-xXUbDAZkU08aAkjtUvldqbvI04ogv+a1XdHxvYuHPYKIVk/42BIOD0zSKTHAWV4+gDy3yGm283z2072rA2gdtw=="
     },
-    "react-scripts": {
-      "version": "1.1.5",
-      "resolved": "https://registry.npmjs.org/react-scripts/-/react-scripts-1.1.5.tgz",
-      "integrity": "sha512-ZXqnbg+kLRaacAkjuedMFTgKu9lNltMDDsuwn37CTV7X2tuZQmDKi08eI3LYvtpjqh5vm8/6BhwHRHkRtvMyJg==",
-      "requires": {
-        "autoprefixer": "7.1.6",
-        "babel-core": "6.26.0",
-        "babel-eslint": "7.2.3",
-        "babel-jest": "20.0.3",
-        "babel-loader": "7.1.2",
-        "babel-preset-react-app": "^3.1.2",
-        "babel-runtime": "6.26.0",
-        "case-sensitive-paths-webpack-plugin": "2.1.1",
-        "chalk": "1.1.3",
-        "css-loader": "0.28.7",
-        "dotenv": "4.0.0",
-        "dotenv-expand": "4.2.0",
-        "eslint": "4.10.0",
-        "eslint-config-react-app": "^2.1.0",
-        "eslint-loader": "1.9.0",
-        "eslint-plugin-flowtype": "2.39.1",
-        "eslint-plugin-import": "2.8.0",
-        "eslint-plugin-jsx-a11y": "5.1.1",
-        "eslint-plugin-react": "7.4.0",
-        "extract-text-webpack-plugin": "3.0.2",
-        "file-loader": "1.1.5",
-        "fs-extra": "3.0.1",
-        "fsevents": "^1.1.3",
-        "html-webpack-plugin": "2.29.0",
-        "jest": "20.0.4",
-        "object-assign": "4.1.1",
-        "postcss-flexbugs-fixes": "3.2.0",
-        "postcss-loader": "2.0.8",
-        "promise": "8.0.1",
-        "raf": "3.4.0",
-        "react-dev-utils": "^5.0.2",
-        "resolve": "1.6.0",
-        "style-loader": "0.19.0",
-        "sw-precache-webpack-plugin": "0.11.4",
-        "url-loader": "0.6.2",
-        "webpack": "3.8.1",
-        "webpack-dev-server": "2.11.3",
-        "webpack-manifest-plugin": "1.3.2",
-        "whatwg-fetch": "2.0.3"
-      }
-    },
     "read-pkg": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-1.1.0.tgz",
@@ -9847,6 +9933,11 @@
       "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
       "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
     },
+    "ua-parser-js": {
+      "version": "0.7.18",
+      "resolved": "https://registry.npmjs.org/ua-parser-js/-/ua-parser-js-0.7.18.tgz",
+      "integrity": "sha512-LtzwHlVHwFGTptfNSgezHp7WUlwiqb0gA9AALRbKaERfxwJoiX0A73QbTToxteIAuIaFshhgIZfqK8s7clqgnA=="
+    },
     "uglify-js": {
       "version": "3.4.9",
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.4.9.tgz",

package.json

@@ -3,14 +3,93 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
+    "autoprefixer": "7.1.6",
+    "babel-core": "6.26.0",
+    "babel-eslint": "7.2.3",
+    "babel-jest": "20.0.3",
+    "babel-loader": "7.1.2",
+    "babel-preset-react-app": "^3.1.2",
+    "babel-runtime": "6.26.0",
+    "braft-editor": "^2.0.5",
+    "case-sensitive-paths-webpack-plugin": "2.1.1",
+    "chalk": "1.1.3",
+    "css-loader": "0.28.7",
+    "dotenv": "4.0.0",
+    "dotenv-expand": "4.2.0",
+    "eslint": "4.10.0",
+    "eslint-config-react-app": "^2.1.0",
+    "eslint-loader": "1.9.0",
+    "eslint-plugin-flowtype": "2.39.1",
+    "eslint-plugin-import": "2.8.0",
+    "eslint-plugin-jsx-a11y": "5.1.1",
+    "eslint-plugin-react": "7.4.0",
+    "extract-text-webpack-plugin": "3.0.2",
+    "file-loader": "1.1.5",
+    "fs-extra": "3.0.1",
+    "html-webpack-plugin": "2.29.0",
+    "jest": "20.0.4",
+    "object-assign": "4.1.1",
+    "postcss-flexbugs-fixes": "3.2.0",
+    "postcss-loader": "2.0.8",
+    "promise": "8.0.1",
+    "raf": "3.4.0",
     "react": "^16.5.0",
+    "react-dev-utils": "^5.0.2",
     "react-dom": "^16.5.0",
-    "react-scripts": "1.1.5"
+    "resolve": "1.6.0",
+    "style-loader": "0.19.0",
+    "sw-precache-webpack-plugin": "0.11.4",
+    "url-loader": "0.6.2",
+    "webpack": "3.8.1",
+    "webpack-dev-server": "2.11.3",
+    "webpack-manifest-plugin": "1.3.2",
+    "whatwg-fetch": "2.0.3"
   },
   "scripts": {
-    "start": "react-scripts start",
-    "build": "react-scripts build",
-    "test": "react-scripts test --env=jsdom",
-    "eject": "react-scripts eject"
+    "start": "node scripts/start.js",
+    "build": "node scripts/build.js",
+    "test": "node scripts/test.js --env=jsdom"
+  },
+  "jest": {
+    "collectCoverageFrom": [
+      "src/**/*.{js,jsx,mjs}"
+    ],
+    "setupFiles": [
+      "<rootDir>/config/polyfills.js"
+    ],
+    "testMatch": [
+      "<rootDir>/src/**/__tests__/**/*.{js,jsx,mjs}",
+      "<rootDir>/src/**/?(*.)(spec|test).{js,jsx,mjs}"
+    ],
+    "testEnvironment": "node",
+    "testURL": "http://localhost",
+    "transform": {
+      "^.+\\.(js|jsx|mjs)$": "<rootDir>/node_modules/babel-jest",
+      "^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
+      "^(?!.*\\.(js|jsx|mjs|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
+    },
+    "transformIgnorePatterns": [
+      "[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs)$"
+    ],
+    "moduleNameMapper": {
+      "^react-native$": "react-native-web"
+    },
+    "moduleFileExtensions": [
+      "web.js",
+      "js",
+      "json",
+      "web.jsx",
+      "jsx",
+      "node",
+      "mjs"
+    ]
+  },
+  "babel": {
+    "presets": [
+      "react-app"
+    ]
+  },
+  "eslintConfig": {
+    "extends": "react-app"
   }
 }

scripts/build.js

@@ -0,0 +1,150 @@
+'use strict';
+
+// Do this as the first thing so that any code reading it knows the right env.
+process.env.BABEL_ENV = 'production';
+process.env.NODE_ENV = 'production';
+
+// Makes the script crash on unhandled rejections instead of silently
+// ignoring them. In the future, promise rejections that are not handled will
+// terminate the Node.js process with a non-zero exit code.
+process.on('unhandledRejection', err => {
+  throw err;
+});
+
+// Ensure environment variables are read.
+require('../config/env');
+
+const path = require('path');
+const chalk = require('chalk');
+const fs = require('fs-extra');
+const webpack = require('webpack');
+const config = require('../config/webpack.config.prod');
+const paths = require('../config/paths');
+const checkRequiredFiles = require('react-dev-utils/checkRequiredFiles');
+const formatWebpackMessages = require('react-dev-utils/formatWebpackMessages');
+const printHostingInstructions = require('react-dev-utils/printHostingInstructions');
+const FileSizeReporter = require('react-dev-utils/FileSizeReporter');
+const printBuildError = require('react-dev-utils/printBuildError');
+
+const measureFileSizesBeforeBuild =
+  FileSizeReporter.measureFileSizesBeforeBuild;
+const printFileSizesAfterBuild = FileSizeReporter.printFileSizesAfterBuild;
+const useYarn = fs.existsSync(paths.yarnLockFile);
+
+// These sizes are pretty large. We'll warn for bundles exceeding them.
+const WARN_AFTER_BUNDLE_GZIP_SIZE = 512 * 1024;
+const WARN_AFTER_CHUNK_GZIP_SIZE = 1024 * 1024;
+
+// Warn and crash if required files are missing
+if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
+  process.exit(1);
+}
+
+// First, read the current file sizes in build directory.
+// This lets us display how much they changed later.
+measureFileSizesBeforeBuild(paths.appBuild)
+  .then(previousFileSizes => {
+    // Remove all content but keep the directory so that
+    // if you're in it, you don't end up in Trash
+    fs.emptyDirSync(paths.appBuild);
+    // Merge with the public folder
+    copyPublicFolder();
+    // Start the webpack build
+    return build(previousFileSizes);
+  })
+  .then(
+    ({ stats, previousFileSizes, warnings }) => {
+      if (warnings.length) {
+        console.log(chalk.yellow('Compiled with warnings.\n'));
+        console.log(warnings.join('\n\n'));
+        console.log(
+          '\nSearch for the ' +
+            chalk.underline(chalk.yellow('keywords')) +
+            ' to learn more about each warning.'
+        );
+        console.log(
+          'To ignore, add ' +
+            chalk.cyan('// eslint-disable-next-line') +
+            ' to the line before.\n'
+        );
+      } else {
+        console.log(chalk.green('Compiled successfully.\n'));
+      }
+
+      console.log('File sizes after gzip:\n');
+      printFileSizesAfterBuild(
+        stats,
+        previousFileSizes,
+        paths.appBuild,
+        WARN_AFTER_BUNDLE_GZIP_SIZE,
+        WARN_AFTER_CHUNK_GZIP_SIZE
+      );
+      console.log();
+
+      const appPackage = require(paths.appPackageJson);
+      const publicUrl = paths.publicUrl;
+      const publicPath = config.output.publicPath;
+      const buildFolder = path.relative(process.cwd(), paths.appBuild);
+      printHostingInstructions(
+        appPackage,
+        publicUrl,
+        publicPath,
+        buildFolder,
+        useYarn
+      );
+    },
+    err => {
+      console.log(chalk.red('Failed to compile.\n'));
+      printBuildError(err);
+      process.exit(1);
+    }
+  );
+
+// Create the production build and print the deployment instructions.
+function build(previousFileSizes) {
+  console.log('Creating an optimized production build...');
+
+  let compiler = webpack(config);
+  return new Promise((resolve, reject) => {
+    compiler.run((err, stats) => {
+      if (err) {
+        return reject(err);
+      }
+      const messages = formatWebpackMessages(stats.toJson({}, true));
+      if (messages.errors.length) {
+        // Only keep the first error. Others are often indicative
+        // of the same problem, but confuse the reader with noise.
+        if (messages.errors.length > 1) {
+          messages.errors.length = 1;
+        }
+        return reject(new Error(messages.errors.join('\n\n')));
+      }
+      if (
+        process.env.CI &&
+        (typeof process.env.CI !== 'string' ||
+          process.env.CI.toLowerCase() !== 'false') &&
+        messages.warnings.length
+      ) {
+        console.log(
+          chalk.yellow(
+            '\nTreating warnings as errors because process.env.CI = true.\n' +
+              'Most CI servers set it automatically.\n'
+          )
+        );
+        return reject(new Error(messages.warnings.join('\n\n')));
+      }
+      return resolve({
+        stats,
+        previousFileSizes,
+        warnings: messages.warnings,
+      });
+    });
+  });
+}
+
+function copyPublicFolder() {
+  fs.copySync(paths.appPublic, paths.appBuild, {
+    dereference: true,
+    filter: file => file !== paths.appHtml,
+  });
+}

scripts/start.js

@@ -0,0 +1,107 @@
+'use strict';
+
+// Do this as the first thing so that any code reading it knows the right env.
+process.env.BABEL_ENV = 'development';
+process.env.NODE_ENV = 'development';
+
+// Makes the script crash on unhandled rejections instead of silently
+// ignoring them. In the future, promise rejections that are not handled will
+// terminate the Node.js process with a non-zero exit code.
+process.on('unhandledRejection', err => {
+  throw err;
+});
+
+// Ensure environment variables are read.
+require('../config/env');
+
+const fs = require('fs');
+const chalk = require('chalk');
+const webpack = require('webpack');
+const WebpackDevServer = require('webpack-dev-server');
+const clearConsole = require('react-dev-utils/clearConsole');
+const checkRequiredFiles = require('react-dev-utils/checkRequiredFiles');
+const {
+  choosePort,
+  createCompiler,
+  prepareProxy,
+  prepareUrls,
+} = require('react-dev-utils/WebpackDevServerUtils');
+const openBrowser = require('react-dev-utils/openBrowser');
+const paths = require('../config/paths');
+const config = require('../config/webpack.config.dev');
+const createDevServerConfig = require('../config/webpackDevServer.config');
+
+const useYarn = fs.existsSync(paths.yarnLockFile);
+const isInteractive = process.stdout.isTTY;
+
+// Warn and crash if required files are missing
+if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
+  process.exit(1);
+}
+
+// Tools like Cloud9 rely on this.
+const DEFAULT_PORT = parseInt(process.env.PORT, 10) || 3000;
+const HOST = process.env.HOST || '0.0.0.0';
+
+if (process.env.HOST) {
+  console.log(
+    chalk.cyan(
+      `Attempting to bind to HOST environment variable: ${chalk.yellow(
+        chalk.bold(process.env.HOST)
+      )}`
+    )
+  );
+  console.log(
+    `If this was unintentional, check that you haven't mistakenly set it in your shell.`
+  );
+  console.log(`Learn more here: ${chalk.yellow('http://bit.ly/2mwWSwH')}`);
+  console.log();
+}
+
+// We attempt to use the default port but if it is busy, we offer the user to
+// run on a different port. `choosePort()` Promise resolves to the next free port.
+choosePort(HOST, DEFAULT_PORT)
+  .then(port => {
+    if (port == null) {
+      // We have not found a port.
+      return;
+    }
+    const protocol = process.env.HTTPS === 'true' ? 'https' : 'http';
+    const appName = require(paths.appPackageJson).name;
+    const urls = prepareUrls(protocol, HOST, port);
+    // Create a webpack compiler that is configured with custom messages.
+    const compiler = createCompiler(webpack, config, appName, urls, useYarn);
+    // Load proxy config
+    const proxySetting = require(paths.appPackageJson).proxy;
+    const proxyConfig = prepareProxy(proxySetting, paths.appPublic);
+    // Serve webpack assets generated by the compiler over a web sever.
+    const serverConfig = createDevServerConfig(
+      proxyConfig,
+      urls.lanUrlForConfig
+    );
+    const devServer = new WebpackDevServer(compiler, serverConfig);
+    // Launch WebpackDevServer.
+    devServer.listen(port, HOST, err => {
+      if (err) {
+        return console.log(err);
+      }
+      if (isInteractive) {
+        clearConsole();
+      }
+      console.log(chalk.cyan('Starting the development server...\n'));
+      openBrowser(urls.localUrlForBrowser);
+    });
+
+    ['SIGINT', 'SIGTERM'].forEach(function(sig) {
+      process.on(sig, function() {
+        devServer.close();
+        process.exit();
+      });
+    });
+  })
+  .catch(err => {
+    if (err && err.message) {
+      console.log(err.message);
+    }
+    process.exit(1);
+  });

scripts/test.js

@@ -0,0 +1,27 @@
+'use strict';
+
+// Do this as the first thing so that any code reading it knows the right env.
+process.env.BABEL_ENV = 'test';
+process.env.NODE_ENV = 'test';
+process.env.PUBLIC_URL = '';
+
+// Makes the script crash on unhandled rejections instead of silently
+// ignoring them. In the future, promise rejections that are not handled will
+// terminate the Node.js process with a non-zero exit code.
+process.on('unhandledRejection', err => {
+  throw err;
+});
+
+// Ensure environment variables are read.
+require('../config/env');
+
+const jest = require('jest');
+let argv = process.argv.slice(2);
+
+// Watch unless on CI or in coverage mode
+if (!process.env.CI && argv.indexOf('--coverage') < 0) {
+  argv.push('--watch');
+}
+
+
+jest.run(argv);

source/react-mde/.dockerignore

@@ -0,0 +1 @@
+node_modules

source/react-mde/.gitignore

@@ -0,0 +1,8 @@
+# Logs
+logs
+*.log*
+.idea
+/lib/
+node_modules
+/.vscode/
+ts-build/

source/react-mde/.npmignore

@@ -0,0 +1,19 @@
+src
+.npmignore
+.idea
+demo
+assets
+npm-debug.*
+.debug.log
+webpack.*
+gulpfile.ts
+webpack*
+tsconfig*
+*.lock
+docs
+test
+gulpfile.js
+readme.md
+tslint.json
+ts-build
+.storybook

source/react-mde/.storybook/addons.js

@@ -0,0 +1 @@
+import '@storybook/addon-storysource/register';

source/react-mde/.storybook/config.js

@@ -0,0 +1,16 @@
+import {configure} from "@storybook/react";
+import "../node_modules/draft-js/dist/Draft.css";
+import "../src/styles/react-mde-all.scss";
+import "./styles/demo.scss";
+
+function loadStories() {
+    require("./stories/layouts/VerticalLayoutStory.tsx");
+    require("./stories/layouts/HorizontalLayoutStory.tsx");
+    require("./stories/layouts/TabbedLayoutStory.tsx");
+    require("./stories/layouts/NoPreviewLayoutStory.tsx");
+    require("./stories/customization/commandIcon/EmojiIconsStory.tsx");
+    //WIP
+    require("./stories/customization/commandButton/CustomButtonStory.tsx");
+}
+
+configure(loadStories, module);

source/react-mde/.storybook/preview-head.html

@@ -0,0 +1 @@
+<script defer src="https://use.fontawesome.com/releases/v5.0.6/js/all.js"></script>

source/react-mde/.storybook/stories/customization/commandButton/ButtonComponent.tsx

@@ -0,0 +1,73 @@
+import * as React from "react";
+
+const containerStyle: React.CSSProperties = {
+    width: "200px",
+    border: "1px solid #c8ccd0",
+    height: "50px",
+    position: "absolute",
+    background: "#fff",
+    zIndex: 999,
+    padding: "5px",
+};
+
+const buttonStyle = {
+    textAlign: "center",
+    width: "100%",
+};
+
+const imagePlaceholder = "https://www.comet.ml/images/logo_comet_dark.png";
+
+export interface Props {
+    onTextChange: (value: string) => void;
+    handleSubmit: () => void;
+}
+
+export interface State {
+    isOpen: boolean;
+}
+
+export default class SimpleForm extends React.Component<Props, State> {
+    constructor(props) {
+        super(props);
+        this.state = {
+            isOpen: false,
+        };
+
+        props.setValues(imagePlaceholder);
+    }
+
+    handleClick = () => {
+        const {isOpen} = this.state;
+        this.setState({isOpen: !isOpen});
+    }
+
+    handleTextChange = (e) => {
+        this.props.onTextChange(e.target.value);
+    }
+
+    handleSubmit = () => {
+        this.props.handleSubmit();
+        this.setState({isOpen: false});
+    }
+
+    render() {
+        const {isOpen} = this.state;
+
+        return (
+            <div>
+                <button onClick={this.handleClick}> Upload Image</button>
+                {isOpen &&
+                <div style={containerStyle}>
+                    <input
+                        type="text"
+                        onChange={this.handleTextChange}
+                        style={{width: "100%"}}
+                        value={imagePlaceholder}
+                    />
+                    <button onClick={this.handleSubmit} style={buttonStyle}>Submit</button>
+                </div>
+                }
+            </div>
+        );
+    }
+}

source/react-mde/.storybook/stories/customization/commandButton/CustomButtonStory.tsx

@@ -0,0 +1,51 @@
+import * as React from "react";
+import * as Showdown from "showdown";
+import ReactMde, {ReactMdeTypes} from "../../../../src/index";
+import {storiesOf} from "@storybook/react";
+import UploadImageCommand from "./UploadImageCommand";
+
+const commands = [[UploadImageCommand]];
+
+interface State {
+    mdeState: ReactMdeTypes.MdeState;
+}
+
+class VerticalLayoutStoryComponent extends React.Component<{}, State> {
+    converter: Showdown.Converter;
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            mdeState: {
+                markdown: "Custom Button with functionality",
+            },
+        };
+        this.converter = new Showdown.Converter({
+            tables: true,
+            simplifiedAutoLink: true,
+            strikethrough: true,
+            tasklists: true,
+        });
+    }
+
+    handleValueChange = (mdeState: ReactMdeTypes.MdeState) => {
+        this.setState({mdeState});
+    }
+
+    render() {
+        return (
+            <ReactMde
+                layout="vertical"
+                onChange={this.handleValueChange}
+                editorState={this.state.mdeState}
+                generateMarkdownPreview={(markdown) => Promise.resolve(this.converter.makeHtml(markdown))}
+                commands={commands}
+            />
+        );
+    }
+}
+
+storiesOf("Customization", module)
+    .add("Command button", () => (
+        <VerticalLayoutStoryComponent/>
+    ));

source/react-mde/.storybook/stories/customization/commandButton/UploadImageCommand.tsx

@@ -0,0 +1,36 @@
+import * as React from "react";
+import {Command} from "../../../../src/types";
+import {insertText} from "../../../../src/util/MarkdownUtil";
+import {getMarkdownStateFromDraftState, buildNewDraftState} from "../../../../src/util/DraftUtil";
+import ButtonComponent from "./ButtonComponent";
+
+let myVal = "def";
+const UploadImageCommand: Command = {
+
+    buttonContentBuilder: ({iconProvider}) => iconProvider("bold"),
+    buttonProps: {
+        "aria-label": "Add bold text",
+        "setValues": (value) => {
+            myVal = value;
+        },
+    },
+    execute: (state) => {
+        const {text, selection} = getMarkdownStateFromDraftState(state);
+        const {newText, insertionLength} = insertText(text, "![", selection.start);
+        const finalText = insertText(newText, `](${myVal})`, selection.end + insertionLength).newText;
+
+        return buildNewDraftState(
+            state,
+            {
+                text: finalText,
+                selection: {
+                    start: selection.start + insertionLength,
+                    end: selection.end + insertionLength,
+                },
+            },
+        );
+    },
+    buttonComponentClass: ButtonComponent,
+};
+
+export default UploadImageCommand;

source/react-mde/.storybook/stories/customization/commandIcon/EmojiIconsStory.tsx

@@ -0,0 +1,66 @@
+import * as React from "react";
+import * as Showdown from "showdown";
+import ReactMde, {ReactMdeTypes} from "../../../../src/index";
+import {storiesOf} from "@storybook/react";
+
+interface State {
+    mdeState: ReactMdeTypes.MdeState;
+}
+
+const icons = {
+  "bold": (<strong>B</strong>),
+  "heading": "H",
+  "italic": (<em>I</em>),
+  "strikethrough": (<del>S</del>),
+  "link": "🔗",
+  "quote-right": (<strong>”</strong>),
+  "code": "🤓",
+  "image": "📸",
+  "list-ul": "⏺",
+  "list-ol": "#️⃣",
+  "tasks": "📝",
+};
+
+const iconProvider = (name) => {
+  return icons[name] || "❓";
+};
+
+class EmojiIconsStory extends React.Component<{}, State> {
+    converter: Showdown.Converter;
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            mdeState: {
+                markdown: "**Hello world!**",
+            },
+        };
+        this.converter = new Showdown.Converter({
+            tables: true,
+            simplifiedAutoLink: true,
+            strikethrough: true,
+            tasklists: true,
+        });
+    }
+
+    handleValueChange = (mdeState: ReactMdeTypes.MdeState) => {
+        this.setState({mdeState});
+    }
+
+    render() {
+        return (
+            <ReactMde
+                layout="horizontal"
+                buttonContentOptions={{ iconProvider }}
+                onChange={this.handleValueChange}
+                editorState={this.state.mdeState}
+                generateMarkdownPreview={(markdown) => Promise.resolve(this.converter.makeHtml(markdown))}
+            />
+        );
+    }
+}
+
+storiesOf("Customization", module)
+    .add("Command emoji", () => (
+        <EmojiIconsStory/>
+    ));

source/react-mde/.storybook/stories/layouts/HorizontalLayoutStory.tsx

@@ -0,0 +1,47 @@
+import * as React from "react";
+import * as Showdown from "showdown";
+import ReactMde, {ReactMdeTypes} from "../../../src/index";
+import {storiesOf} from "@storybook/react";
+
+interface State {
+    mdeState: ReactMdeTypes.MdeState;
+}
+
+class VerticalLayoutStoryComponent extends React.Component<{}, State> {
+    converter: Showdown.Converter;
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            mdeState: {
+                markdown: "**Hello world!**",
+            },
+        };
+        this.converter = new Showdown.Converter({
+            tables: true,
+            simplifiedAutoLink: true,
+            strikethrough: true,
+            tasklists: true,
+        });
+    }
+
+    handleValueChange = (mdeState: ReactMdeTypes.MdeState) => {
+        this.setState({mdeState});
+    }
+
+    render() {
+        return (
+            <ReactMde
+                layout="horizontal"
+                onChange={this.handleValueChange}
+                editorState={this.state.mdeState}
+                generateMarkdownPreview={(markdown) => Promise.resolve(this.converter.makeHtml(markdown))}
+            />
+        );
+    }
+}
+
+storiesOf("Layouts", module)
+    .add("horizontal", () => (
+        <VerticalLayoutStoryComponent/>
+    ));

source/react-mde/.storybook/stories/layouts/NoPreviewLayoutStory.tsx

@@ -0,0 +1,47 @@
+import * as React from "react";
+import * as Showdown from "showdown";
+import ReactMde, {ReactMdeTypes} from "../../../src/index";
+import {storiesOf} from "@storybook/react";
+
+interface State {
+    mdeState: ReactMdeTypes.MdeState;
+}
+
+class VerticalLayoutStoryComponent extends React.Component<{}, State> {
+    converter: Showdown.Converter;
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            mdeState: {
+                markdown: "**Hello world!**",
+            },
+        };
+        this.converter = new Showdown.Converter({
+            tables: true,
+            simplifiedAutoLink: true,
+            strikethrough: true,
+            tasklists: true,
+        });
+    }
+
+    handleValueChange = (mdeState: ReactMdeTypes.MdeState) => {
+        this.setState({mdeState});
+    }
+
+    render() {
+        return (
+            <ReactMde
+                layout="noPreview"
+                onChange={this.handleValueChange}
+                editorState={this.state.mdeState}
+                generateMarkdownPreview={(markdown) => Promise.resolve(this.converter.makeHtml(markdown))}
+            />
+        );
+    }
+}
+
+storiesOf("Layouts", module)
+    .add("noPreview", () => (
+        <VerticalLayoutStoryComponent/>
+    ));

source/react-mde/.storybook/stories/layouts/TabbedLayoutStory.tsx

@@ -0,0 +1,47 @@
+import * as React from "react";
+import * as Showdown from "showdown";
+import ReactMde, {ReactMdeTypes} from "../../../src/index";
+import {storiesOf} from "@storybook/react";
+
+interface State {
+    mdeState: ReactMdeTypes.MdeState;
+}
+
+class VerticalLayoutStoryComponent extends React.Component<{}, State> {
+    converter: Showdown.Converter;
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            mdeState: {
+                markdown: "**Hello world!**",
+            },
+        };
+        this.converter = new Showdown.Converter({
+            tables: true,
+            simplifiedAutoLink: true,
+            strikethrough: true,
+            tasklists: true,
+        });
+    }
+
+    handleValueChange = (mdeState: ReactMdeTypes.MdeState) => {
+        this.setState({mdeState});
+    }
+
+    render() {
+        return (
+            <ReactMde
+                layout="tabbed"
+                onChange={this.handleValueChange}
+                editorState={this.state.mdeState}
+                generateMarkdownPreview={(markdown) => Promise.resolve(this.converter.makeHtml(markdown))}
+            />
+        );
+    }
+}
+
+storiesOf("Layouts", module)
+    .add("tabbed", () => (
+        <VerticalLayoutStoryComponent/>
+    ));

source/react-mde/.storybook/stories/layouts/VerticalLayoutStory.tsx

@@ -0,0 +1,47 @@
+import * as React from "react";
+import * as Showdown from "showdown";
+import ReactMde, {ReactMdeTypes} from "../../../src/index";
+import {storiesOf} from "@storybook/react";
+
+interface State {
+    mdeState: ReactMdeTypes.MdeState;
+}
+
+class VerticalLayoutStoryComponent extends React.Component<{}, State> {
+    converter: Showdown.Converter;
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            mdeState: {
+                markdown: "**Hello world!**",
+            },
+        };
+        this.converter = new Showdown.Converter({
+            tables: true,
+            simplifiedAutoLink: true,
+            strikethrough: true,
+            tasklists: true,
+        });
+    }
+
+    handleValueChange = (mdeState: ReactMdeTypes.MdeState) => {
+        this.setState({mdeState});
+    }
+
+    render() {
+        return (
+            <ReactMde
+                layout="vertical"
+                onChange={this.handleValueChange}
+                editorState={this.state.mdeState}
+                generateMarkdownPreview={(markdown) => Promise.resolve(this.converter.makeHtml(markdown))}
+            />
+        );
+    }
+}
+
+storiesOf("Layouts", module)
+    .add("vertical", () => (
+        <VerticalLayoutStoryComponent/>
+    ));

source/react-mde/.storybook/styles/demo.scss

@@ -0,0 +1,6 @@
+@import 'variables.scss';
+
+body {
+    font-size: 14px;
+    font-family: sans-serif;
+}

source/react-mde/.storybook/styles/variables.scss

@@ -0,0 +1 @@
+$default-border-color: rgba(0, 0, 0, .125) !default;

source/react-mde/.storybook/webpack.config.js

@@ -0,0 +1,40 @@
+module.exports = (baseConfig, env, defaultConfig) => {
+    const config = {...defaultConfig, ...baseConfig};
+    config.module.rules.push({
+        test: /\.(ts|tsx)$/,
+        loader: require.resolve('awesome-typescript-loader')
+    });
+    config.module.rules.push({
+        test: /Story.tsx/,
+        loaders: [
+            {
+                loader: require.resolve('@storybook/addon-storysource/loader'),
+                options: {parser: 'typescript'}
+            }
+        ],
+        enforce: 'pre',
+    });
+    config.module.rules.push({
+        test: /\.css/, use: [
+            {
+                loader: 'style-loader'
+            },
+            {
+                loader: 'css-loader', options: {sourceMap: true}
+            }]
+    });
+    config.module.rules.push({
+        test: /\.scss$/, use: [
+            {
+                loader: 'style-loader'
+            },
+            {
+                loader: 'css-loader', options: {sourceMap: true}
+            },
+            {
+                loader: 'sass-loader', options: {sourceMap: true}
+            }]
+    });
+    config.resolve.extensions.push('.ts', '.tsx');
+    return config;
+};

source/react-mde/Dockerfile

@@ -0,0 +1,8 @@
+FROM alpine
+LABEL maintainer="andrerpena@gmail.com"
+RUN apk add --update nodejs nodejs-npm
+COPY . /src
+WORKDIR /src
+RUN npm i
+EXPOSE 4000
+ENTRYPOINT ["npm", "run", "start"]

source/react-mde/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016 André Pena
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

source/react-mde/demo/App.tsx

@@ -0,0 +1,43 @@
+import * as React from "react";
+import ReactMde, { ReactMdeTypes } from "../src";
+import * as Showdown from "showdown";
+
+export interface AppState {
+    mdeState: ReactMdeTypes.MdeState;
+}
+
+export class App extends React.Component<{}, AppState> {
+
+    converter: Showdown.Converter;
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            mdeState: {
+                markdown: "**Hello world!!!**",
+            },
+        };
+        this.converter = new Showdown.Converter({
+            tables: true,
+            simplifiedAutoLink: true,
+            strikethrough: true,
+            tasklists: true,
+        });
+    }
+
+    handleValueChange = (mdeState: ReactMdeTypes.MdeState) => {
+        this.setState({ mdeState });
+    }
+
+    render() {
+        return (
+            <div className="container">
+                <ReactMde
+                    onChange={this.handleValueChange}
+                    editorState={this.state.mdeState}
+                    generateMarkdownPreview={(markdown) => Promise.resolve(this.converter.makeHtml(markdown))}
+                />
+            </div>
+        );
+    }
+}

source/react-mde/demo/client.tsx

@@ -0,0 +1,15 @@
+import * as React from "react";
+import { render } from "react-dom";
+import { App } from "./App";
+
+// stylings
+import "../node_modules/normalize.css/normalize.css";
+import "../node_modules/draft-js/dist/Draft.css";
+import "../src/styles/react-mde-all.scss";
+import "./styles/demo.scss";
+import "./styles/variables.scss";
+
+render(
+    <App />,
+    document.getElementById("#app_container"),
+);

source/react-mde/demo/index.html

@@ -0,0 +1,29 @@
+<html>
+
+<head>
+    <title>react-mde</title>
+    <meta http-equiv='X-UA-Compatible' content='IE=edge' />
+    <meta name='viewport' content='width=device-width, initial-scale=1.0' />
+    <script defer src="https://use.fontawesome.com/releases/v5.0.6/js/all.js"></script>
+</head>
+
+<body>
+    <div>
+        <div id="#app_container"></div>
+    </div>
+    <script src='bundle.js'></script>
+    <script>
+    (function (i, s, o, g, r, a, m) {
+        i['GoogleAnalyticsObject'] = r; i[r] = i[r] || function () {
+            (i[r].q = i[r].q || []).push(arguments)
+        }, i[r].l = 1 * new Date(); a = s.createElement(o),
+            m = s.getElementsByTagName(o)[0]; a.async = 1; a.src = g; m.parentNode.insertBefore(a, m)
+    })(window, document, 'script', 'https://www.google-analytics.com/analytics.js', 'ga');
+
+    ga('create', 'UA-89807105-1', 'auto');
+    ga('send', 'pageview');
+
+</script>
+</body>
+
+</html>

source/react-mde/demo/index.prod.html

@@ -0,0 +1,27 @@
+<html>
+<head>
+    <title>react-mde</title>
+    <meta http-equiv='X-UA-Compatible' content='IE=edge' />
+    <meta name='viewport' content='width=device-width, initial-scale=1.0' />
+    <script defer src="https://use.fontawesome.com/releases/v5.0.6/js/all.js"></script>
+    <link rel='stylesheet' href='bundle.css'/>
+</head>
+<body>
+<div>
+    <div id="#app_container"></div>
+</div>
+<script src='bundle-prod.js'></script>
+<script>
+        (function (i, s, o, g, r, a, m) {
+        i['GoogleAnalyticsObject'] = r; i[r] = i[r] || function () {
+            (i[r].q = i[r].q || []).push(arguments)
+        }, i[r].l = 1 * new Date(); a = s.createElement(o),
+            m = s.getElementsByTagName(o)[0]; a.async = 1; a.src = g; m.parentNode.insertBefore(a, m)
+        })(window, document, 'script', 'https://www.google-analytics.com/analytics.js', 'ga');
+
+        ga('create', 'UA-89807105-1', 'auto');
+        ga('send', 'pageview');
+
+    </script>
+</body>
+</html>

source/react-mde/demo/server.ts

@@ -0,0 +1,26 @@
+import * as fs from "fs";
+import * as express from "express";
+import * as webpackMiddleware from "webpack-dev-middleware";
+import * as webpackHotMiddleware from "webpack-hot-middleware";
+import * as webpack from "webpack";
+import * as webpackConfig from "../webpack.config.demo.dev";
+const packageJson = require("../package.json");
+
+const webpackCompiler = webpack(webpackConfig as any);
+const port = 4000;
+
+require.extensions[".html"] = (module, filename) => {
+    module.exports = fs.readFileSync(filename, "utf8");
+};
+
+const app = express();
+
+app.use(webpackMiddleware(webpackCompiler));
+app.use(webpackHotMiddleware(webpackCompiler));
+app.use((req, res) => res.status(200).send(require("./index.html")));
+
+app.listen(port, "0.0.0.0", () => {
+    const demoUrl = `http://localhost:${port}/`;
+    // tslint:disable-next-line
+    console.log(`${packageJson.name} running at ${demoUrl}`);
+});

source/react-mde/demo/styles/demo.scss

@@ -0,0 +1,16 @@
+@import 'variables.scss';
+
+* {
+    box-sizing: border-box;
+}
+
+body {
+    font-size: 14px;
+    font-family: sans-serif;
+}
+
+.container {
+    width: 100%;
+    height: 600px;
+    padding: 10px;
+}

source/react-mde/demo/styles/variables.scss

@@ -0,0 +1 @@
+$default-border-color: rgba(0, 0, 0, .125) !default;

source/react-mde/docs-md/ChangeLogMigrating.md

@@ -0,0 +1,70 @@
+    
+# Change log / Migrating
+
+## From 4.\* to 5.\*
+
+Major differences:
+
+- `React-mde` is now built on top of `Draft.js`. This facilitates features that would otherwise be quite
+difficult, the best examples being history management, mentions and pasting files.
+- Showdown is no longer a dependency and server side markdown generation is now possible.
+- The Command API is now much more capable and stable. For example, it now allows commands to be 
+executed asynchronously.
+- The default styling is now self-contained and easier to integrate into existing applications.
+
+## From 3.\* to 4.\*
+
+Major differences:
+
+- Passing `commands` to `React-Mde` is now optional. If none is passed, it will automatically
+use the default ones.
+- Now the `React-mde` sub-components cannot be imported directly from the main package.
+This change will not affect you if you don't using sub-components. This will not affect the majority
+of the users.
+
+    // 3.\* and below:
+    import { ReactMarkdownTextArea } from "react-mde"
+    // 4.\* and after:
+    import { ReactMdeComponents } from "react-mde"
+    const { ReactMarkdownTextArea } = ReactMdeComponents
+
+Architectural differences:
+
+- Now the layout is decoupled from `React-Mde` in such a way that now, introducing new layouts, like
+horizontal and tabs, will not require breaking changes. The only layout available now is `Vertical`.
+
+## From 2.* to 3.\*
+
+Font Awesome 5 is now used, and it's not a NPM peer dependency anymore. 
+It's up to you how to install it, it [can be installed in different ways](https://fontawesome.com/how-to-use/svg-with-js), but the easiest is just adding this to the `<head/>`:
+
+    <script defer src="https://use.fontawesome.com/releases/v5.0.6/js/all.js"></script>
+
+## From 1.\* to 2.\*
+
+2.* is a major refactoring of the code to improve composability
+
+Major differences:
+
+- Now the main `react-mde` component is composed of 3 sub-components, the `ReactMdeToolbar`, the `ReactMdeTextArea` and the `ReactMdePreview`.
+You can import `react-mde` directly or import each of the sub-components and have more flexibility building your own layout.
+- Each sub-component now has its own CSS/SCSS file and we're now including a `react-mde-all.css`, or the SCSS alternative, for simplicity.
+- We realized that on version 1.*, it was difficult to select which components you wanted to use. So now...
+
+
+    import * as ReactMde from 'react-mde';
+    ReactMde.ReactMdeComponents // contains all components and you can select your own components
+    ReactMde.getDefaultComponents() // will return an array with all components
+    
+    
+How to upgrade an existing 1.* JavaScript project: https://github.com/andrerpena/react-mde-js-demo/commit/e62af170fa258f7f17f29d41f395f24e9eaf3b72
+
+How to upgrade an existing 1.* TypeScript project: https://github.com/andrerpena/react-mde-ts-demo/commit/d6718305c0132649cabca432e1e9415ea06cd643
+
+## From 0.* to 1.*
+
+Major differences:
+
+- Instead of using the `getDefaultCommands` function, now the default commands are exported directly.
+- The `textAreaId` and `textareaName` props were replaced by `textAreaProps` that allows you to pass whatever you want to the `textarea` component.
+- The paths of the CSS and SCSS have changed.

source/react-mde/docs-md/customButton.md

@@ -0,0 +1,103 @@
+## Custom Buttons
+
+1. `ImageUploaderCommand.js` file:
+```
+import {Command} from "../types";
+import ButtonComponent from "./ButtonComponent";
+let myVal = "def";
+const customCommand: Command = {
+    buttonContentBuilder: ({ iconProvider }) => iconProvider("bold"),
+    execute: (state) => {
+        /*...*/
+    },
+    CustomButtonComponent: ButtonComponent,
+    setValues: (value) => {
+        myVal = value;
+    },
+};
+export default customCommand;
+```
+
+2. Set the `commands` prop in `<ReactMde />`:
+
+```
+import * as React from "react";
+import * as Showdown from "showdown";
+import ReactMde, {ReactMdeTypes} from "../../../src/index";
+import {storiesOf} from "@storybook/react";
+import CustomCommand from "./path/to/ImageUploaderCommand";
+
+const commands = [
+    [CustomCommand],
+];
+
+interface State {
+    mdeState: ReactMdeTypes.MdeState;
+}
+
+class ReactMdeButtonExample extends React.Component {
+    converter: Showdown.Converter;
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            mdeState: {
+                markdown: "Custom Button with functionality",
+            },
+        };
+        this.converter = new Showdown.Converter({
+            tables: true,
+            simplifiedAutoLink: true,
+            strikethrough: true,
+            tasklists: true,
+        });
+    }
+
+    handleValueChange = (mdeState: ReactMdeTypes.MdeState) => {
+        this.setState({mdeState});
+    };
+
+    render() {
+        return (
+            <ReactMde
+                onChange={this.handleValueChange}
+                editorState={this.state.mdeState}
+                generateMarkdownPreview={(markdown) => Promise.resolve(this.converter.makeHtml(markdown))}
+                commands={commands}
+            />
+        );
+    }
+}
+```
+
+3.  Invoke `this.props.setValues()` and `this.props.handleSubmit()` in `ButtonComponent.tsx`:
+
+```
+export default class SimpleForm extends React.Component {
+  constructor(props) {
+    super(props);
+    this.handleTextChange = this.handleTextChange.bind(this);
+    this.handleSubmit = this.handleSubmit.bind(this);
+    props.setValues(imagePlaceholder);
+  }
+
+  handleTextChange(e) {
+    this.props.setValues(e.target.value)
+  }
+
+  handleSubmit() {
+    this.props.handleSubmit();
+  }
+
+  render() {
+    return <div>
+      <button onClick={this.handleClick}> Upload Image </button>
+        <div>
+          <input  onChange={this.handleTextChange}  />
+          <button onClick={this.handleSubmit} >Submit </button>
+        </div>
+      }
+    </div>
+  }
+}
+```

source/react-mde/docs-md/readme-old.md

@@ -0,0 +1,289 @@
+# react-mde
+
+A simple yet powerful and extensible Markdown Editor editor for React, inspired by GitHub. This is the editor used by http://aboutdevs.com.
+
+![image](https://github.com/andrerpena/react-mde/blob/master/assets/react-mde.png)
+
+> Warning: React-mde is not yet stable and ready for production use even though we're working very hard towards it. Its main current problem now is that Ctrl + Z doesn't work 100% (after executing a command, history gets messy). I, @andrerpena, am curretly working to replace the textarea with Facebook's Draft.js, this will solve the history problem and will make it easy to implement mentions and copying files. I'm also working on making the command infrastructure more rebust. Expect a major breaking change (5.\*) coming on the 18th of March. After this, my goal will be to provide a GitHub like layout. React-mde currently supports multiple layouts already, but just a simple vertical one is provided out of the box. I want provide 2 refined layouts: Stackoverflow and GitHub. I'm really sorry for the constant breaking change releases. It was my fault. I should have used minor versions (0.\*) until a final version was reached, but I can't fix that now. I will make sure that 5.* will be a pretty stable version. Thanks for your comprehension and support.  
+
+## Demos
+
+Demos are provided through https://codesandbox.io. Feel free to fork and play with different options :smile:.
+
+[React-mde 4.* - JavaScript - Basic Demo](https://codesandbox.io/s/qz116r505w)
+
+[React-mde 4.* - TypeScript - Basic Demo](https://codesandbox.io/s/y0xwwqo88j)
+
+[React-mde 3.* - JavaScript - Basic Demo](https://codesandbox.io/s/mz1945q5my)
+
+[React-mde 3.* - TypeScript - Basic Demo](https://codesandbox.io/s/z1zv6py3)
+
+## Installing
+
+    npm install --save react-mde
+
+## Dependencies
+
+`React-mde` currently depends on:
+
+- Font Awesome - For the icons
+- Showdown - For rendering the markdown preview
+
+`React-mde` used Font Awesome 4.7.* as an NPM dependency before 3.*. Now Font Awesome needs
+to be installed separately [using your preferred method](https://fontawesome.com/how-to-use/svg-with-js). The easiest is just add this to `<head/>`:
+
+    <script defer src="https://use.fontawesome.com/releases/v5.0.6/js/all.js"></script>
+ 
+You also need NPM packages.
+
+
+
+For `React-mde` 3.*+:
+
+    npm install --save showdown
+    
+For `React-mde` 2.*: (this will install Font Awesome 4.7.*)
+    
+    npm install --save showdown font-awesome
+
+## Using
+
+React-mde is a completely controlled component. You can experiment with the props below
+forking the [Codesandbox demos](https://github.com/andrerpena/react-mde#demos)
+
+**Props**:
+
+- **value**: The current value. An object with this structure `{text: "", selection?: {start:0, end:2}, scrollTop?: number }` 
+where `text` is the text and `selection` is an object containing `start` and `end` representing what should be selected.
+Passing null to `selection` is perfectly fine.
+- **onChange**: Function that should handle the value. The `value` passed as a parameter to the `onChange` function is of the same type as the `value` prop above.
+- **commands**: An array of array of command objects (`[[cmd1, cmd2],[cmd3, cmd4]]`). The first array represents groups,
+ the second represents commands inside that group. For an example, refer to how the `getDefaultCommands()` [is implemented](https://github.com/andrerpena/react-mde/blob/master/src/commands/index.ts). How to create custom commands is explained below.
+- **textAreaProps**: Whatever you want to pass to the `textarea` component.
+- **showdownFlavor**: The Markdown flavor to use. This defaults to `original`, the [original specs by John Gruber](https://daringfireball.net/projects/markdown/). Please refer to the [Showdown documentation](https://github.com/showdownjs/showdown#flavors) for the complete list of supported flavors.
+- **showdownOptions**: An object with options to be passed to Showdown. Please refer to the [Showdown documentation](https://github.com/showdownjs/showdown#valid-options) for the complete list of options. Note that, unlike what happens by default with Showdown, the options passed here will **override** the defined flavor.
+Notice that tables, for example, are disabled by default in Showdown. So, in order to enable tables, you'd pass something like `showdownOptions={{tables: true}}` to `ReactMde`.
+- **visibility**: Determines which sub-components are visible. `visibility` is an object optionally containing these booleans:
+`toolbar`, `textarea`, `preview` and `previewHelp`. For example, in order to hide the preview, you can pass `visibility:{{preview:false}}`.
+- **className**: Custom className.
+- **processHtml**: A function that receives the HTML generated by Showdown and returned a processed/sanitized version before
+displaying it in the preview. This is useful to avoid XSS.
+
+## Styling
+
+The following styles from React-mde should be added: (Both .scss and .css files are available. No need to use sass-loader if you don't want)
+
+Easiest way: import `react-mde-all.css`:
+
+    import 'react-mde/lib/styles/css/react-mde-all.css';
+    
+If you want to have a more granular control over the styles, you can import each individual file:
+
+    import 'react-mde/lib/styles/css/react-mde.css';
+    import 'react-mde/lib/styles/css/react-mde-toolbar.css';
+    import 'react-mde/lib/styles/css/react-mde-textarea.css';
+    import 'react-mde/lib/styles/css/react-mde-preview.css';
+    
+If you're using SASS, you can override these variables: https://github.com/andrerpena/react-mde/blob/master/src/styles/variables.scss
+
+You also need Font Awesome for the toolbar icons. `React-mde` 3.\*+ uses Font Awesome 5.\*. `React-mde` 2.\* uses Font Awesome 4.*.
+
+Font Awesome 5 [can be installed in different ways](https://fontawesome.com/how-to-use/svg-with-js), but the easiest is just adding this to the `<head/>`:
+
+    <script defer src="https://use.fontawesome.com/releases/v5.0.6/js/all.js"></script>
+
+If you're using `React-mde` 2.\*, Font Awesome 4.\* is required. After installing the NPM, 
+import it in your JavaScript or TypeScript like this:
+
+    import '../node_modules/font-awesome/css/font-awesome.css';
+    
+Normalize is optional but it's used in the Demo.
+    
+    import '../node_modules/normalize.css/normalize.css';
+    
+    
+## XSS concerns
+    
+Taken from the [Markdown repository documentation](https://github.com/showdownjs/showdown/wiki/Markdown's-XSS-Vulnerability-(and-how-to-mitigate-it)):
+
+> Cross-side scripting is a well known technique to gain access to private information of the users 
+of a website. The attacker injects spurious HTML content (a script) on the web page which will read 
+the user’s cookies and do something bad with it (like steal credentials). As a countermeasure,
+ you should filter any suspicious content coming from user input. Showdown doesn’t include an 
+ XSS filter, so you must provide your own. But be careful in how you do it…
+ 
+`React-mde` does not automatically sanitize the Showdown generated HTML for you. However,
+you can use your preferred anti-XSS library and use the `processHtml` prop to sanitize
+the HTML before it is presented in the preview.
+    
+## Commands
+
+React-mde allows you to use the build-in commands, implement your own commands, or both.
+
+There are two types of commands, the `button` commands (default if you don't say anything), and the `dropdown` commands.
+`button` commands appear as button and execute a single action when clicked. `dropdown` commands have `subCommands` and
+will display a dropdown when you click them.
+
+### Anatomy of a button command
+
+You don't have to create your own commands at all, but if you want, this is how a command looks like:
+
+    const makeLinkCommand = {
+        icon: 'link',
+        tooltip:
+            'Insert a link',
+        execute:
+            (text: string, selection: TextSelection) => {
+                const {newText, insertionLength} = insertText(text, '[', selection.start);
+                const finalText = insertText(newText, '](url)', selection.end + insertionLength).newText;
+                return {
+                    text: finalText,
+                    selection: {
+                        start: selection.start + insertionLength,
+                        end: selection.end + insertionLength,
+                    },
+                };
+            },
+    };
+
+
+**props:**
+
+- **type**: The type of the command.
+- **icon**: If this is a text, it will print a `font-awesome` `<i/>` element with the classes `fa fa-${icon}`. Passing `bold` will print `<i className="fa fa-bold"></i>`.
+ If the passing value is a React element, it will print the react element.
+- **tooltip**: If any, it will print a tooltip with the passed text.
+- **execute**: The function that will actually execute the command. This function accepts 2 parameters: `text`,
+ which is the textarea text before the command, and `selection`, an object containing `start` and `end`. 
+ Your function should return the new `text` and the new `selection` (after your command).
+
+
+### Anatomy of a dropdown command
+
+    {
+		type: 'dropdown',
+		icon: 'header',
+		subCommands: [
+			{
+				content: <p className="header-1">Header</p>,
+				execute: function (text, selection) {
+					return makeHeader(text, selection, '# ');
+				}
+			},
+			{
+				content: <p className="header-2">Header</p>,
+				execute: function (text, selection) {
+					return makeHeader(text, selection, '## ');
+				}
+			},
+			{
+				content: <p className="header-3">Header</p>,
+				execute: function (text, selection) {
+					return makeHeader(text, selection, '### ');
+				}
+			}
+		]
+	}
+
+
+**props:**
+
+
+ - **type**: The type of the command.
+ - **icon**: If this is a text, it will print a `font-awesome` `<i/>` element with the classes `fa fa-${icon}`. Passing `bold` will print `<i className="fa fa-bold"></i>`.
+ If the passing value is a React element, it will print the react element.
+ - **subCommands**: A list of commands that will dropdown when you click the button.
+
+**subCommands** is an array of objects with the following props:
+
+ - **content**: A React component that will be displayed within the `li`.
+ - **execute**: The function that will actually execute the command. This function accepts 2 parameters: `text`, which is the whole textarea text before your command, and `selection`, a 2 items array containing the beggining and end of the current selection.
+ Your function should return the current `text` (after your command) and the current `selection` (after your command).
+
+## Composition and custom layouts
+
+`ReactMde` is designed to make it easy for users to customize the layout, or to make any of it sub-components invisible,
+like the Preview, for instance. The `ReactMde` component, itself, just a thin layout wrapper for its 3 internal components
+with visibility options.
+
+If you want to create your own layout, please take a look at the source code of the `ReactMde` component:
+https://github.com/andrerpena/react-mde/blob/master/src/ReactMde.tsx. It's easy to simply create your own, only
+leveraging the internal components you'd like and laying them out in the way you prefer
+
+    import * as ReactMde from 'react-mde';
+    // Now you have (among other utility modules):
+    // The ReactMde.ReactMdeToolbar component
+    // The ReactMde.ReactMdeTextArea component
+    // The ReactMde.ReactMdePreview component
+    
+    
+# Migrating
+
+## From 3.\* to 4.\*
+
+Major differences:
+
+- Passing `commands` to `React-Mde` is now optional. If none is passed, it will automatically
+use the default ones.
+- Now the `React-mde` sub-components cannot be imported directly from the main package.
+This change will not affect you if you don't using sub-components. This will not affect the majority
+of the users.
+
+    // 3.\* and below:
+    import { ReactMarkdownTextArea } from "react-mde"
+    // 4.\* and after:
+    import { ReactMdeComponents } from "react-mde"
+    const { ReactMarkdownTextArea } = ReactMdeComponents
+
+Architectural differences:
+
+- Now the layout is decoupled from `React-Mde` in such a way that now, introducing new layouts, like
+horizontal and tabs, will not require breaking changes. The only layout available now is `Vertical`.
+
+## From 2.* to 3.\*
+
+Font Awesome 5 is now used, and it's not a NPM peer dependency anymore. 
+It's up to you how to install it, it [can be installed in different ways](https://fontawesome.com/how-to-use/svg-with-js), but the easiest is just adding this to the `<head/>`:
+
+    <script defer src="https://use.fontawesome.com/releases/v5.0.6/js/all.js"></script>
+
+## From 1.\* to 2.\*
+
+2.* is a major refactoring of the code to improve composability
+
+Major differences:
+
+- Now the main `react-mde` component is composed of 3 sub-components, the `ReactMdeToolbar`, the `ReactMdeTextArea` and the `ReactMdePreview`.
+You can import `react-mde` directly or import each of the sub-components and have more flexibility building your own layout.
+- Each sub-component now has its own CSS/SCSS file and we're now including a `react-mde-all.css`, or the SCSS alternative, for simplicity.
+- We realized that on version 1.*, it was difficult to select which components you wanted to use. So now...
+
+
+    import * as ReactMde from 'react-mde';
+    ReactMde.ReactMdeComponents // contains all components and you can select your own components
+    ReactMde.getDefaultComponents() // will return an array with all components
+    
+    
+How to upgrade an existing 1.* JavaScript project: https://github.com/andrerpena/react-mde-js-demo/commit/e62af170fa258f7f17f29d41f395f24e9eaf3b72
+
+How to upgrade an existing 1.* TypeScript project: https://github.com/andrerpena/react-mde-ts-demo/commit/d6718305c0132649cabca432e1e9415ea06cd643
+
+## From 0.* to 1.*
+
+Major differences:
+
+- Instead of using the `getDefaultCommands` function, now the default commands are exported directly.
+- The `textAreaId` and `textareaName` props were replaced by `textAreaProps` that allows you to pass whatever you want to the `textarea` component.
+- The paths of the CSS and SCSS have changed.
+
+## Roadmap
+
+Check the project here: https://github.com/andrerpena/react-mde/projects/1
+
+## Licence
+
+React-mde is MIT licensed
+
+## About the author
+
+Made with :heart: by André Pena. Check out my website: https://aboutdevs.com/andrerpena

source/react-mde/docs/iframe.html

@@ -0,0 +1,89 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible" />
+    <base target="_parent">
+    <title>Storybook</title>
+    <link rel="shortcut icon" href="favicon.ico?v=1" />
+    <script defer src="https://use.fontawesome.com/releases/v5.0.6/js/all.js"></script>
+    <style>
+        :not(.sb-show-main) > .sb-main,
+        :not(.sb-show-nopreview) > .sb-nopreview,
+        :not(.sb-show-errordisplay) > .sb-errordisplay {
+            display: none;
+        }
+
+
+        .sb-wrapper {
+            position: fixed;
+            top: 0;
+            bottom: 0;
+            left: 0;
+            right: 0;
+            padding: 20px;
+            font-family: -apple-system, ".SFNSText-Regular", "San Francisco", Roboto, "Segoe UI", "Helvetica Neue", "Lucida Grande", sans-serif;
+            -webkit-font-smoothing: antialiased;
+        }
+
+        .sb-heading {
+            font-size: 20px;
+            font-weight: 600;
+            letter-spacing: 0.2px;
+            margin: 10px 0;
+        }
+
+
+        .sb-nopreview {
+            display: flex;
+            align-content: center;
+            justify-content: center;
+        }
+
+        .sb-nopreview_main {
+            margin: auto;
+            padding: 30px;
+            border-radius: 10px;
+            background: rgba(0,0,0,0.03);
+        }
+
+        .sb-nopreview_heading {
+            text-align: center;
+        }
+
+
+        .sb-errordisplay {
+            background-color: rgb(187, 49, 49);
+            color: #FFF;
+        }
+
+        .sb-errordisplay_code {
+            font-size: 14px;
+            width: 100vw;
+            overflow: auto;
+        }
+    </style>
+</head>
+<body class="sb-show-main">
+    <div id="root" class="sb-main"></div>
+
+    <div class="sb-nopreview sb-wrapper">
+        <div class="sb-nopreview_main">
+            <h1 class="sb-nopreview_heading sb-heading">No Preview</h1>
+            <p>Sorry, but you either have no stories or none are selected somehow.</p>
+            <ul>
+                <li>Please check the storybook config.</li>
+                <li>Try reloading the page.</li>
+            </ul>
+        </div>
+    </div>
+
+    <div class="sb-errordisplay sb-wrapper">
+        <div id="error-message" class="sb-heading"></div>
+        <pre class="sb-errordisplay_code">
+            <code id="error-stack"></code>
+        </pre>
+    </div>
+<script type="text/javascript" src="static/runtime~preview.3d1c6dcf72bd957deb27.bundle.js"></script><script type="text/javascript" src="static/vendors~preview.014d44b79772935ed98a.bundle.js"></script><script type="text/javascript" src="static/preview.882bafd716960d2ded4d.bundle.js"></script></body>
+</html>

source/react-mde/docs/index.html

@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="storybook-version" content="4.0.0-alpha.10">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible" />
+    <title>Storybook</title>
+    <link rel="shortcut icon" href="favicon.ico?v=1" />
+    
+
+</head>
+<body style="margin: 0;">
+    <style>
+        html, body {
+            overflow: hidden;
+            height: 100%;
+            width: 100%;
+        }
+    </style>
+    <div id="root"></div>
+<script type="text/javascript" src="static/runtime~manager.e92fd76fc0e1ef205464.bundle.js"></script><script type="text/javascript" src="static/manager.e49c8faf84bedb0a57cd.bundle.js"></script></body>
+</html>

source/react-mde/docs/static/preview.882bafd716960d2ded4d.bundle.js.map

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source/react-mde/docs/static/runtime~manager.e92fd76fc0e1ef205464.bundle.js

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source/react-mde/docs/static/runtime~preview.3d1c6dcf72bd957deb27.bundle.js

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+//# sourceMappingURL=runtime~preview.3d1c6dcf72bd957deb27.bundle.js.map

source/react-mde/gulpfile.js

@@ -0,0 +1,46 @@
+const gulp = require('gulp');
+const rename = require('gulp-rename');
+const ts = require('gulp-typescript');
+const sass = require('gulp-sass');
+const merge = require('merge2');
+const tsProject = ts.createProject('./tsconfig.build.json');
+const run = require('gulp-run');
+
+gulp.task('build_styles', function () {
+    return gulp.src('./src/styles/**/*.scss')
+        .pipe(sass().on('error', sass.logError))
+        .pipe(gulp.dest('./lib/styles/css'));
+});
+
+// library
+gulp.task('copy_styles', function () {
+    return gulp.src('./src/styles/**/*.scss')
+        .pipe(gulp.dest('./lib/styles/scss'));
+});
+
+gulp.task('build-lib', ['copy_styles', 'build_styles'], function () {
+    const tsResult = gulp.src('src/**/*.{ts,tsx}')
+        .pipe(tsProject({
+            declaration: true
+        }));
+    return merge([
+        tsResult.dts.pipe(gulp.dest('lib/definitions')),
+        tsResult.js.pipe(gulp.dest('lib/js'))
+    ]);
+});
+
+// demo
+// removes the output configuration from the webpack.config.js file, otherwise it doesn't work.
+
+gulp.task('copy-index', function () {
+    return gulp.src('./demo/index.prod.html')
+        .pipe(rename('index.html'))
+        .pipe(gulp.dest('./docs'));
+});
+
+gulp.task('build-demo', ['copy-index'], function () {
+    return run("npm run build:storybook").exec();
+});
+
+// all
+gulp.task('build', ['build-demo', 'build-lib']);

source/react-mde/package.json

@@ -0,0 +1,99 @@
+{
+  "name": "react-mde",
+  "version": "5.8.0",
+  "description": "React Markdown Editor",
+  "main": "./lib/js/index.js",
+  "types": "./lib/definitions/index.d.ts",
+  "scripts": {
+    "test": "mocha --timeout 15000 -r ts-node/register ./test/*Spec.ts",
+    "start": "cross-env NODE_ENV=development ts-node ./demo/server.ts",
+    "start:storybook": "start-storybook -p 9001 -c .storybook",
+    "start:storybook:prod": "npm run build:storybook && static-server docs",
+    "build:ts": "tsc --project ./tsconfig.build.json",
+    "build": "cross-env NODE_ENV=production gulp build",
+    "build:lib": "cross-env NODE_ENV=production gulp build-lib",
+    "build:storybook": "build-storybook -c .storybook -o docs",
+    "lint": "tslint --project \".\"",
+    "lint:fix": "tslint --project \".\" --fix",
+    "tsc": "tsc",
+    "webpack": "webpack --config webpack.config.demo.dev.js",
+    "webpack:prod": "webpack --config webpack.config.demo.prod.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/andrerpena/react-mde.git"
+  },
+  "keywords": [
+    "react",
+    "component",
+    "markdown",
+    "editor",
+    "text-editor",
+    "markdown-editor"
+  ],
+  "author": "Andre Pena",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/andrerpena/react-mde.git/issues"
+  },
+  "devDependencies": {
+    "@storybook/addon-actions": "^4.0.0-alpha.4",
+    "@storybook/addon-storysource": "^4.0.0-alpha.4",
+    "@storybook/react": "^4.0.0-alpha.10",
+    "@types/classnames": "^2.2.3",
+    "@types/draft-js": "^0.10.20",
+    "@types/express": "^4.11.1",
+    "@types/mocha": "^5.2.0",
+    "@types/react": "^16.0.38",
+    "@types/react-dom": "^16.0.4",
+    "@types/showdown": "^1.7.2",
+    "@types/storybook__react": "^3.0.7",
+    "@types/webpack-dev-middleware": "^2.0.0",
+    "@types/webpack-hot-middleware": "^2.16.2",
+    "awesome-typescript-loader": "^5.0.0",
+    "babel-core": "^6.26.3",
+    "chai": "^4.1.2",
+    "cross-env": "^5.1.3",
+    "css-loader": "^0.28.10",
+    "draft-js": "^0.10.5",
+    "express": "^4.16.2",
+    "extract-text-webpack-plugin": "^4.0.0-beta.0",
+    "file-loader": "^1.1.9",
+    "gulp": "^3.9.1",
+    "gulp-cli": "^2.0.1",
+    "gulp-rename": "^1.2.2",
+    "gulp-run": "^1.7.1",
+    "gulp-sass": "^4.0.1",
+    "gulp-typescript": "^5.0.0-alpha.2",
+    "merge2": "^1.2.1",
+    "mocha": "^5.0.1",
+    "node-sass": "^4.9.0",
+    "normalize.css": "^8.0.0",
+    "opn": "^5.2.0",
+    "react": "^16.2.0",
+    "react-dom": "^16.2.0",
+    "react-hot-loader": "^4.1.2",
+    "sass-loader": "^7.0.1",
+    "showdown": "^1.8.6",
+    "static-server": "^2.2.1",
+    "style-loader": "^0.21.0",
+    "ts-node": "^7.0.0",
+    "tslint": "^5.9.1",
+    "tslint-react": "^3.5.1",
+    "typescript": "^2.9.2",
+    "webpack": "^4.14.0",
+    "webpack-cli": "^3.0.8",
+    "webpack-dev-middleware": "^3.1.3",
+    "webpack-hot-middleware": "^2.21.0"
+  },
+  "homepage": "https://github.com/andrerpena/react-mde.git#readme",
+  "peerDependencies": {
+    "react": "^16.0.0",
+    "react-dom": "^16.0.0",
+    "draft-js": "^0.10.5"
+  },
+  "dependencies": {
+    "classnames": "^2.2.5",
+    "npm": "^6.1.0"
+  }
+}

source/react-mde/readme.md

@@ -0,0 +1,202 @@
+# react-mde
+
+A simple yet powerful and extensible Markdown Editor editor for React. React-mde is built on top of [Draft.js](https://draftjs.org/).
+
+## Demos
+
+- [Demos](http://andrerpena.me/react-mde/).
+
+## Installing
+
+    npm i --save react-mde
+
+## Dependencies
+
+React-mde currently depends on:
+
+- [Draft.js](https://draftjs.org/). This facilitates features that would otherwise be quite
+difficult. The best examples being history management, mentions and pasting files.
+<!-- -->
+
+    npm i --save draft-js
+
+- [Font Awesome 5.*](https://fontawesome.com/) for the icons. This is not a hard dependency and can be changed (see the **Customizing Icons** section below).
+To use Font Awesome icons, install [using your preferred method](https://fontawesome.com/how-to-use/svg-with-js).
+The easiest is just add this to `<head/>`:
+<!-- -->
+
+    <script defer src="https://use.fontawesome.com/releases/v5.0.6/js/all.js"></script>
+
+It is possible to use React-mde with Font Awesome 4 (and possibly earlier versions) – see below under 'Customizing Icons'.
+
+## Optional dependencies
+
+- [Showdown](https://github.com/showdownjs/showdown). React-mde is not opinionated as to how to transform markdown into HTML and this can be done both in client-side,
+like StackOverflow, or in server-side, like GitHub. The easiest way is to use Showdown and process it in client-side. If you
+decide to do so, install Showdown:
+<!-- -->
+
+    npm i --save showdown
+
+## Using
+
+React-mde is a completely controlled component.
+
+Minimal example using Showdown:
+```jsx
+import * as React from "react";
+import ReactMde, {ReactMdeTypes} from "../src";
+import * as Showdown from "showdown";
+
+export interface AppState {
+    mdeState: ReactMdeTypes.MdeState;
+}
+
+export class App extends React.Component<{}, AppState> {
+
+    converter: Showdown.Converter;
+
+    constructor(props) {
+        super(props);
+        this.state = {
+            mdeState: null,
+        };
+        this.converter = new Showdown.Converter({tables: true, simplifiedAutoLink: true});
+    }
+
+    handleValueChange = (mdeState: ReactMdeTypes.MdeState) => {
+        this.setState({mdeState});
+    }
+
+    render() {
+        return (
+            <div className="container">
+                <ReactMde
+                    onChange={this.handleValueChange}
+                    editorState={this.state.mdeState}
+                    generateMarkdownPreview={(markdown) => Promise.resolve(this.converter.makeHtml(markdown))}
+                />
+            </div>
+        );
+    }
+}
+```
+
+### Customizing Icons
+
+By default, React-mde will use Font Awesome class names to render icons (see above for how to install).
+The default icon provider returns icons that look like the following:
+
+```jsx
+<i className={`fas fa-${icon}`} aria-hidden="true"/>
+```
+
+This can be changed by passing a `buttonContentOptions` prop to the `ReactMde` component with an `iconProvider` option to tell React-mde how to render icons.
+
+For example, you can use your own custom icon component by changing the `iconProvider`:
+
+```jsx
+<ReactMde
+    buttonContentOptions={{
+        iconProvider: name => <MyCustomIcon name={name} />,
+    }}
+    onChange={this.handleValueChange}
+    // ...
+/>
+```
+
+In order to use Font Awesome 4 classes, you can pass the following prop:
+```
+buttonContentOptions={{
+    iconProvider: name => <i className={`fa fa-${name}`} />,
+}}
+```
+This will cause React-mde to use FA4-style classnames.
+
+## Custom props
+[See docs](docs/customButton.md "See docs")
+
+## React-mde Props
+
+The types are described below
+
+- **editorState: MdeState**: The [state of the editor](https://github.com/andrerpena/react-mde/blob/master/src/types/MdeState.ts). 
+It contains the markdown, the HTML and the underlying Draft.js state. However, only *markdown* is supposed to be passed
+by the user on the first call. Both *html* and *draftEditorState* will be 
+generated by React-mde and passed back to the user through the *onChange* callback. It is important to notice that, even
+though on the first call, *editorState* is supposed to be something like `{markdown:'Hello!`}`, on the subsequent calls,
+*editorState* should be the object returned by the *onChange* callback.
+- **className?: string**: Optional class name to be added to the top level element.
+- **commands?: Command[][]**: An array of array of commands. If no commands are specified, the default will be used. Commands are explained in more details below.
+- **buttonContentOptions?: { iconProvider: (iconName: string) => React.ReactNode }** An optional set of button content options, including an `iconProvider` to allow custom icon rendering.
+- **onChange: (value: [MdeState](https://github.com/andrerpena/react-mde/blob/master/src/types/MdeState.ts)) => void**: Event handler for the `onChange` event.
+- **generateMarkdownPreview: (markdown: string) => Promise<string>;**: Function that should return the generated HTML for the preview. If this `prop` is falsy, then no preview is going to be generated.
+- **layout?: string**: The name of the layout to be used. For now, the supported layouts are : `vertical`, `horizontal`, `tabbed` and `noPreview`.
+- **layoutOptions?: any**: An object with options to be passed to the `layout-component`. Each layout may or may not expect
+options. It is recommended to [inspect the layouts source code](https://github.com/andrerpena/react-mde/tree/master/src/components-layout) to see what options can be passed to each
+while the documentation is not complete. 
+-- **readOnly?: boolean**: Flag to render the editor in read-only mode.
+
+## Styling
+
+The following styles from React-mde should be added: (Both .scss and .css files are available. No need to use sass-loader if you don't want)
+
+Easiest way: import `react-mde-all.css`:
+
+    import 'react-mde/lib/styles/css/react-mde-all.css';
+    
+If you want to have a more granular control over the styles, you can [import each individual file](https://github.com/andrerpena/react-mde/tree/master/src/styles).
+    
+If you're using SASS, you can override these variables: https://github.com/andrerpena/react-mde/blob/master/src/styles/variables.scss
+
+You also need Font Awesome for the toolbar icons. Font Awesome 5 [can be installed in different ways](https://fontawesome.com/how-to-use/svg-with-js),
+but the easiest is just adding this to the `<head/>`:
+
+    <script defer src="https://use.fontawesome.com/releases/v5.0.6/js/all.js"></script>
+
+## XSS concerns
+
+React-mde does not automatically sanitize the HTML preview. If your using Showdown,
+this has been taken from [their documentation](https://github.com/showdownjs/showdown/wiki/Markdown's-XSS-Vulnerability-(and-how-to-mitigate-it)):
+    
+> Cross-side scripting is a well known technique to gain access to private information of the users
+of a website. The attacker injects spurious HTML content (a script) on the web page which will read 
+the user’s cookies and do something bad with it (like steal credentials). As a countermeasure,
+ you should filter any suspicious content coming from user input. Showdown doesn’t include an 
+ XSS filter, so you must provide your own. But be careful in how you do it…
+ 
+You might want to take a look at [showdown-xss-filter](https://github.com/VisionistInc/showdown-xss-filter).
+
+## Commands
+
+React-mde allows you to use the build-in commands, implement your own commands, or both. If you wish
+to implement your own commands, please refer to the [commands source code](https://github.com/andrerpena/react-mde/tree/master/src/commands) to understand how they
+should be implemented.
+
+## Composition and custom layouts
+
+React-mde is designed to be composable and to facilitate new layouts:
+
+![architecture](https://github.com/andrerpena/react-mde/blob/master/assets/architecture.png)
+
+## Programmatically controlling text and selection
+
+`DraftUtil.buildNewMdeState` can be used to programmatically create a new state based on the current state.
+[Example with a button that duplicates the text](https://codesandbox.io/s/l4jlp3p5om). For the initial state, you can just pass null to `editorState` and React-Mde will build a new `MdeState` and call `onChange` with the first `MdeState`
+
+## Change log / Migrating from older versions
+
+[Instructions here](https://github.com/andrerpena/react-mde/blob/master/docs-md/ChangeLogMigrating.md).
+
+## Roadmap
+
+Check the project here: https://github.com/andrerpena/react-mde/projects/1
+
+## Licence
+
+React-mde is [MIT licensed](https://github.com/andrerpena/react-mde/blob/master/LICENSE).
+
+## About the author
+
+Made with :heart: by André Pena and [other awesome contributors](https://github.com/andrerpena/react-mde/graphs/contributors).
+Check out my website: http://andrerpena.me.

source/react-mde/src/LayoutMap.tsx

@@ -0,0 +1,13 @@
+import * as React from "react";
+import {VerticalLayout, NoPreviewLayout, HorizontalLayout, TabbedLayout} from "./components-layout";
+
+class LayoutMap {
+    vertical: typeof VerticalLayout = VerticalLayout;
+    noPreview: typeof NoPreviewLayout = NoPreviewLayout;
+    horizontal: typeof HorizontalLayout = HorizontalLayout;
+    tabbed: typeof TabbedLayout = TabbedLayout;
+}
+
+const layoutMap = new LayoutMap();
+
+export { LayoutMap, layoutMap };

source/react-mde/src/ReactMde.tsx

@@ -0,0 +1,122 @@
+import * as React from "react";
+import {Command, GenerateMarkdownPreview, MdeState, ButtonContentOptions} from "./types";
+import {getDefaultCommands} from "./commands";
+import {layoutMap, LayoutMap} from "./LayoutMap";
+import {ContentState, EditorState} from "draft-js";
+import {getMdeStateFromDraftState} from "./util/DraftUtil";
+import {MdeToolbarIcon} from "./components";
+
+export interface ReactMdeProps {
+    editorState: MdeState;
+    className?: string;
+    commands?: Command[][];
+    buttonContentOptions?: ButtonContentOptions;
+    onChange: (value: MdeState) => void;
+    generateMarkdownPreview?: GenerateMarkdownPreview;
+    layout?: keyof LayoutMap;
+    layoutOptions?: any;
+    emptyPreviewHtml?: string;
+    readOnly?: boolean;
+}
+
+export class ReactMde extends React.Component<ReactMdeProps> {
+    static defaultProps: Partial<ReactMdeProps> = {
+        commands: getDefaultCommands(),
+        buttonContentOptions: {
+            iconProvider: (name) => <MdeToolbarIcon icon={name}/>,
+        },
+        layout: "vertical",
+        emptyPreviewHtml: "<p>&nbsp;</p>",
+        readOnly: false,
+    };
+
+    handleOnChange = ({markdown, html, draftEditorState}: MdeState) => {
+        const {onChange} = this.props;
+        onChange({markdown, html, draftEditorState});
+    }
+
+    handleDraftStateChange = (draftEditorState: EditorState) => {
+        const {generateMarkdownPreview} = this.props;
+        getMdeStateFromDraftState(draftEditorState, generateMarkdownPreview).then((mdeState) => {
+            this.handleOnChange({
+                html: mdeState.html,
+                markdown: mdeState.markdown,
+                draftEditorState,
+            });
+        });
+    }
+
+    onCommand = (command: Command) => {
+        if (!command.execute) return;
+        const {draftEditorState} = this.props.editorState;
+        const executedCommand = command.execute(draftEditorState);
+        return Promise.resolve(executedCommand).then((result) => this.handleDraftStateChange(result));
+    }
+
+    // The user is **only** supposed to pass the 'markdown' prop of the editorState. Both 'html' and 'draftEditorState'
+    // are supposed to be populated by React-Mde. If 'draftEditorState' has value here, this means that the whole 'editorState'
+    // has been generated by React-Mde. Otherwise, we will generate an 'initializedMdeState' and call 'handleOnChange'
+    // so the user has it
+    async ensureMdeStateIsInSync() {
+        const {editorState, generateMarkdownPreview} = this.props;
+
+        let initializedMdeState: MdeState;
+        if (editorState) {
+            if (editorState.draftEditorState) {
+                // editor states with a draftEditorState are considered to be in sync already
+                return;
+            }
+            const html = editorState.html || ((editorState.markdown && generateMarkdownPreview) ? await generateMarkdownPreview(editorState.markdown) : "");
+            initializedMdeState = {
+                markdown: editorState.markdown,
+                html,
+                draftEditorState: editorState.draftEditorState || EditorState.createWithContent(ContentState.createFromText(editorState.markdown)),
+            };
+        } else {
+            initializedMdeState = {
+                html: "",
+                markdown: "",
+                draftEditorState: EditorState.createEmpty(),
+            };
+        }
+        this.handleOnChange(initializedMdeState);
+    }
+
+    async componentDidMount() {
+        await this.ensureMdeStateIsInSync();
+    }
+
+    async componentDidUpdate() {
+        await this.ensureMdeStateIsInSync();
+    }
+
+    render() {
+        const Layout = layoutMap[this.props.layout];
+        const {buttonContentOptions, commands, layoutOptions, className, emptyPreviewHtml, readOnly} = this.props;
+        const {editorState} = this.props;
+        let finalEditorState: MdeState = editorState;
+        if (!finalEditorState || !finalEditorState.draftEditorState) {
+            // This is only supposed to prevent React-Mde from receiving an empty draftEditorState. In this case,
+            // componentDidMount or componentDidUpdate will call handleOnChange to pass a valid MdeState to the user
+            finalEditorState = {
+                html: "",
+                markdown: "",
+                draftEditorState: EditorState.createEmpty(),
+            };
+        }
+        return (
+            <div className={`react-mde ${className || ""}`}>
+                <Layout
+                    buttonContentOptions={buttonContentOptions}
+                    onChange={this.handleDraftStateChange}
+                    onCommand={this.onCommand}
+                    commands={commands}
+                    layoutOptions={layoutOptions}
+                    mdeEditorState={finalEditorState}
+                    emptyPreviewHtml={emptyPreviewHtml}
+                    readOnly={readOnly}
+                />
+            </div>
+        );
+    }
+}

source/react-mde/src/commands/boldCommand.tsx

@@ -0,0 +1,16 @@
+import * as React from "react";
+import {Command} from "../types";
+import {insertBeforeAndAfter} from "../util/MarkdownUtil";
+import {getMarkdownStateFromDraftState, buildNewDraftState} from "../util/DraftUtil";
+
+export const boldCommand: Command = {
+    buttonContentBuilder: ({ iconProvider }) => iconProvider("bold"),
+
+    buttonProps: { "aria-label": "Add bold text" },
+
+    execute: (state) => {
+        let mdState = getMarkdownStateFromDraftState(state);
+        mdState = insertBeforeAndAfter(mdState, "**");
+        return buildNewDraftState(state, mdState);
+    },
+};

source/react-mde/src/commands/checkListCommand.tsx

@@ -0,0 +1,16 @@
+import * as React from "react";
+import {Command} from "../types";
+import {makeList} from "../util/MarkdownUtil";
+import {buildNewDraftState, getMarkdownStateFromDraftState} from "../util/DraftUtil";
+
+export const checkListCommand: Command = {
+    buttonContentBuilder: ({ iconProvider }) => iconProvider("tasks"),
+
+    buttonProps: { "aria-label": "Insert checklist" },
+
+    execute: (state) => {
+        let mdState = getMarkdownStateFromDraftState(state);
+        mdState = makeList(mdState, "- [ ] ");
+        return buildNewDraftState(state, mdState);
+    },
+};

source/react-mde/src/commands/codeCommand.tsx

@@ -0,0 +1,51 @@
+import * as React from "react";
+import {Command} from "../types";
+import {
+    insertAfter,
+    insertBefore,
+    insertBeforeAndAfter, insertBreaksAfterSoThatThereIsAnEmptyLineAfter,
+    insertBreaksBeforeSoThatThereIsAnEmptyLineBefore,
+    selectWordIfCaretIsInsideOne,
+} from "../util/MarkdownUtil";
+import {buildNewDraftState, getMarkdownStateFromDraftState} from "../util/DraftUtil";
+
+export const codeCommand: Command = {
+    buttonContentBuilder: ({ iconProvider }) => iconProvider("code"),
+
+    buttonProps: { "aria-label": "Insert code" },
+
+    execute: (state) => {
+        let {text, selection} = getMarkdownStateFromDraftState(state);
+        selection = selectWordIfCaretIsInsideOne({text, selection});
+
+        // when there's no breaking line
+        if (text.slice(selection.start, selection.end).indexOf("\n") === -1) {
+            const mdState = insertBeforeAndAfter({text, selection}, "`");
+            return buildNewDraftState(state, mdState);
+        }
+
+        let textInsertion;
+
+        // insert breaks before, if needed
+        textInsertion = insertBreaksBeforeSoThatThereIsAnEmptyLineBefore({text, selection});
+        text = textInsertion.newText;
+        selection = textInsertion.newSelection;
+
+        // inserts ```\n before
+        textInsertion = insertBefore(text, "```\n", selection, false);
+        text = textInsertion.newText;
+        selection = textInsertion.newSelection;
+
+        // inserts ```\n after
+        textInsertion = insertAfter(text, "\n```", selection);
+        text = textInsertion.newText;
+        selection = textInsertion.newSelection;
+
+        // insert breaks after, if needed
+        textInsertion = insertBreaksAfterSoThatThereIsAnEmptyLineAfter({text, selection});
+        text = textInsertion.newText;
+        selection = textInsertion.newSelection;
+
+        return buildNewDraftState(state, {text, selection});
+    },
+};

source/react-mde/src/commands/headerCommand.tsx

@@ -0,0 +1,35 @@
+import * as React from "react";
+import {Command} from "../types";
+import {makeHeader} from "../util/MarkdownUtil";
+import {buildNewDraftState, getMarkdownStateFromDraftState} from "../util/DraftUtil";
+
+function setHeader(state, str) {
+    let mdState = getMarkdownStateFromDraftState(state);
+    mdState = makeHeader(mdState, str);
+    return buildNewDraftState(state, mdState);
+}
+
+export const headerCommand: Command = {
+    buttonContentBuilder: ({ iconProvider }) => iconProvider("heading"),
+
+    buttonProps: { "aria-label": "Add header" },
+
+    children: [
+        {
+            buttonContentBuilder: () => <p className="header-1">Header 1</p>,
+            execute: (state) => setHeader(state, "# "),
+        },
+        {
+            buttonContentBuilder: () => <p className="header-2">Header 2</p>,
+            execute: (state) => setHeader(state, "## "),
+        },
+        {
+            buttonContentBuilder: () => <p className="header-3">Header 3</p>,
+            execute: (state) => setHeader(state, "### "),
+        },
+        {
+            buttonContentBuilder: () => <p className="header-4">Header 4</p>,
+            execute: (state) => setHeader(state, "#### "),
+        },
+    ],
+};

source/react-mde/src/commands/imageCommand.tsx

@@ -0,0 +1,27 @@
+import * as React from "react";
+import {Command} from "../types";
+import {insertText} from "../util/MarkdownUtil";
+import {buildNewDraftState, getMarkdownStateFromDraftState} from "../util/DraftUtil";
+
+export const imageCommand: Command = {
+    buttonContentBuilder: ({ iconProvider }) => iconProvider("image"),
+
+    buttonProps: { "aria-label": "Insert a picture" },
+
+    execute: (state) => {
+        const {text, selection} = getMarkdownStateFromDraftState(state);
+        const {newText, insertionLength} = insertText(text, "![", selection.start);
+        const finalText = insertText(newText, "](image-url)", selection.end + insertionLength).newText;
+
+        return buildNewDraftState(
+            state,
+            {
+                text: finalText,
+                selection: {
+                    start: selection.start + insertionLength,
+                    end: selection.end + insertionLength,
+                },
+            },
+        );
+    },
+};

source/react-mde/src/commands/index.ts

@@ -0,0 +1,35 @@
+import { boldCommand } from "./boldCommand";
+import { codeCommand} from "./codeCommand";
+import { headerCommand } from "./headerCommand";
+import { imageCommand } from "./imageCommand";
+import { italicCommand } from "./italicCommand";
+import { strikethroughCommand } from "./strikethroughCommand";
+import { linkCommand } from "./linkCommand";
+import { orderedListCommand } from "./orderedCommand";
+import { quoteCommand } from "./quoteCommand";
+import { unorderedListCommand } from "./unorderedListCommand";
+import { checkListCommand } from "./checkListCommand";
+import { tabCommand } from "./tabCommand";
+import {Command} from "../types";
+
+const getDefaultCommands: () => Command[][] = () => [
+    [headerCommand, boldCommand, italicCommand, strikethroughCommand],
+    [linkCommand, quoteCommand, codeCommand, imageCommand],
+    [unorderedListCommand, orderedListCommand, checkListCommand],
+];
+
+export {
+    boldCommand,
+    codeCommand,
+    headerCommand,
+    imageCommand,
+    italicCommand,
+    strikethroughCommand,
+    linkCommand,
+    orderedListCommand,
+    quoteCommand,
+    unorderedListCommand,
+    checkListCommand,
+    tabCommand,
+    getDefaultCommands,
+};

source/react-mde/src/commands/italicCommand.tsx

@@ -0,0 +1,16 @@
+import * as React from "react";
+import {Command} from "../types";
+import {insertBeforeAndAfter} from "../util/MarkdownUtil";
+import {buildNewDraftState, getMarkdownStateFromDraftState} from "../util/DraftUtil";
+
+export const italicCommand: Command = {
+    buttonContentBuilder: ({ iconProvider }) => iconProvider("italic"),
+
+    buttonProps: { "aria-label": "Add italic text" },
+
+    execute: (state) => {
+        let mdState = getMarkdownStateFromDraftState(state);
+        mdState = insertBeforeAndAfter(mdState, "_");
+        return buildNewDraftState(state, mdState);
+    },
+};

source/react-mde/src/commands/linkCommand.tsx

@@ -0,0 +1,28 @@
+import * as React from "react";
+import {Command} from "../types";
+import {insertText, selectWordIfCaretIsInsideOne} from "../util/MarkdownUtil";
+import {buildNewDraftState, getMarkdownStateFromDraftState} from "../util/DraftUtil";
+
+export const linkCommand: Command = {
+    buttonContentBuilder: ({ iconProvider }) => iconProvider("link"),
+
+    buttonProps: { "aria-label": "Insert a link" },
+
+    execute: (state) => {
+        const {text, selection} = getMarkdownStateFromDraftState(state);
+        const newSelection = selectWordIfCaretIsInsideOne({text, selection});
+        const {newText, insertionLength} = insertText(text, "[", newSelection.start);
+        const finalText = insertText(newText, "](url)", newSelection.end + insertionLength).newText;
+
+        return buildNewDraftState(
+            state,
+            {
+                text: finalText,
+                selection: {
+                    start: newSelection.start + insertionLength,
+                    end: newSelection.end + insertionLength,
+                },
+            },
+        );
+    },
+};

source/react-mde/src/commands/orderedCommand.tsx

@@ -0,0 +1,16 @@
+import * as React from "react";
+import {Command} from "../types";
+import {makeList} from "../util/MarkdownUtil";
+import {buildNewDraftState, getMarkdownStateFromDraftState} from "../util/DraftUtil";
+
+export const orderedListCommand: Command = {
+    buttonContentBuilder: ({ iconProvider }) => iconProvider("list-ol"),
+
+    buttonProps: { "aria-label": "Insert numbered list" },
+
+    execute: (state) => {
+        let mdState = getMarkdownStateFromDraftState(state);
+        mdState = makeList(mdState, (item, index) => `${index + 1}. `);
+        return buildNewDraftState(state, mdState);
+    },
+};

source/react-mde/src/commands/quoteCommand.tsx

@@ -0,0 +1,35 @@
+import * as React from "react";
+import {Command} from "../types";
+import {
+    insertBefore, insertBreaksAfterSoThatThereIsAnEmptyLineAfter,
+    insertBreaksBeforeSoThatThereIsAnEmptyLineBefore,
+    selectWordIfCaretIsInsideOne,
+} from "../util/MarkdownUtil";
+import {buildNewDraftState, getMarkdownStateFromDraftState} from "../util/DraftUtil";
+
+export const quoteCommand: Command = {
+    buttonContentBuilder: ({ iconProvider }) => iconProvider("quote-right"),
+
+    buttonProps: { "aria-label": "Insert a quote" },
+
+    execute: (state) => {
+        let {text, selection} = getMarkdownStateFromDraftState(state);
+        selection = selectWordIfCaretIsInsideOne({text, selection});
+
+        let textInsertion;
+
+        textInsertion = insertBreaksBeforeSoThatThereIsAnEmptyLineBefore({text, selection});
+        text = textInsertion.newText;
+        selection = textInsertion.newSelection;
+
+        textInsertion = insertBefore(text, "> ", selection, false);
+        text = textInsertion.newText;
+        selection = textInsertion.newSelection;
+
+        textInsertion = insertBreaksAfterSoThatThereIsAnEmptyLineAfter({text, selection});
+        text = textInsertion.newText;
+        selection = textInsertion.newSelection;
+
+        return buildNewDraftState(state, {text, selection});
+    },
+};

source/react-mde/src/commands/strikethroughCommand.tsx

@@ -0,0 +1,16 @@
+import * as React from "react";
+import {Command} from "../types";
+import {insertBeforeAndAfter} from "../util/MarkdownUtil";
+import {buildNewDraftState, getMarkdownStateFromDraftState} from "../util/DraftUtil";
+
+export const strikethroughCommand: Command = {
+    buttonContentBuilder: ({ iconProvider }) => iconProvider("strikethrough"),
+
+    buttonProps: { "aria-label": "Add strikethrough text" },
+
+    execute: (state) => {
+        let mdState = getMarkdownStateFromDraftState(state);
+        mdState = insertBeforeAndAfter(mdState, "~~");
+        return buildNewDraftState(state, mdState);
+    },
+};

source/react-mde/src/commands/tabCommand.tsx

@@ -0,0 +1,15 @@
+import * as React from "react";
+import {Command} from "../types";
+import {onTab} from "../util/MarkdownUtil";
+import {getMarkdownStateFromDraftState, buildNewDraftState} from "../util/DraftUtil";
+
+export const tabCommand: Command = {
+    buttonContentBuilder: () => null,
+    buttonProps: null,
+
+    execute: (state, reverse) => {
+        let mdState = getMarkdownStateFromDraftState(state);
+        mdState = onTab(mdState, reverse);
+        return buildNewDraftState(state, mdState);
+    },
+};

source/react-mde/src/commands/unorderedListCommand.tsx

@@ -0,0 +1,16 @@
+import * as React from "react";
+import {Command} from "../types";
+import {makeList} from "../util/MarkdownUtil";
+import {buildNewDraftState, getMarkdownStateFromDraftState} from "../util/DraftUtil";
+
+export const unorderedListCommand: Command = {
+    buttonContentBuilder: ({ iconProvider }) => iconProvider("list-ul"),
+
+    buttonProps: { "aria-label": "Insert a bulleted list" },
+
+    execute: (state) => {
+        let mdState = getMarkdownStateFromDraftState(state);
+        mdState = makeList(mdState, "- ");
+        return buildNewDraftState(state, mdState);
+    },
+};

source/react-mde/src/components-layout/HorizontalLayout.tsx

@@ -0,0 +1,60 @@
+import * as React from "react";
+import {Command, LayoutProps} from "../types";
+import {ReactMde} from "../ReactMde";
+import {MdePreview, MdeEditor, MdeToolbar} from "../components";
+import * as classNames from "classnames";
+
+export class HorizontalLayout extends React.Component<LayoutProps, {}> {
+    editorRef: MdeEditor;
+    previewRef: MdePreview;
+
+    /**
+     * Handler for the textArea value change
+     * @memberOf ReactMde
+     */
+    handleMdeStateChange = (value) => {
+        const {onChange} = this.props;
+        onChange(value);
+    }
+
+    handleCommand = (command: Command) => {
+        const {onCommand} = this.props;
+        onCommand(command);
+    }
+
+    /**
+     * Renders react-mde
+     * @returns
+     * @memberOf ReactMde
+     */
+    render() {
+        const {buttonContentOptions, commands, mdeEditorState, layoutOptions, emptyPreviewHtml, readOnly} = this.props;
+        const finalLayoutOptions = layoutOptions ? {...layoutOptions} : {};
+
+        return (
+            <div className="react-mde-horizontal-layout">
+                <MdeToolbar
+                    buttonContentOptions={buttonContentOptions}
+                    commands={commands}
+                    onCommand={this.handleCommand}
+                    readOnly={readOnly}
+                />
+                <div className="mde-content">
+                    <MdeEditor
+                        className={classNames(finalLayoutOptions.editorClassName)}
+                        editorRef={(c) => this.editorRef = c}
+                        onChange={this.handleMdeStateChange}
+                        editorState={mdeEditorState}
+                        readOnly={readOnly}
+                    />
+                    <MdePreview
+                        className={classNames(finalLayoutOptions.editorClassName)}
+                        previewRef={(c) => this.previewRef = c}
+                        html={mdeEditorState ? mdeEditorState.html : ""}
+                        emptyPreviewHtml={emptyPreviewHtml}
+                    />
+                </div>
+            </div>
+        );
+    }
+}

source/react-mde/src/components-layout/NoPreviewLayout.tsx

@@ -0,0 +1,51 @@
+import * as React from "react";
+import {Command, LayoutProps} from "../types";
+import {ReactMde} from "../ReactMde";
+import {MdePreview, MdeEditor, MdeToolbar} from "../components";
+
+export class NoPreviewLayout extends React.Component<LayoutProps, {}> {
+
+    editorRef: MdeEditor;
+    previewRef: MdePreview;
+
+    /**
+     * Handler for the textArea value change
+     * @memberOf ReactMde
+     */
+    handleMdeStateChange = (value) => {
+        const {onChange} = this.props;
+        onChange(value);
+    }
+
+    handleCommand = (command: Command) => {
+        const { onCommand } = this.props;
+        onCommand(command);
+    }
+
+    /**
+     * Renders react-mde
+     * @returns
+     * @memberOf ReactMde
+     */
+    render() {
+
+        const { buttonContentOptions, commands, mdeEditorState, readOnly } = this.props;
+
+        return (
+            <div className="react-mde-no-preview-layout">
+                <MdeToolbar
+                    buttonContentOptions={buttonContentOptions}
+                    commands={commands}
+                    onCommand={this.handleCommand}
+                    readOnly={readOnly}
+                />
+                <MdeEditor
+                    editorRef={(c) => this.editorRef = c}
+                    onChange={this.handleMdeStateChange}
+                    editorState={mdeEditorState}
+                    readOnly={readOnly}
+                />
+            </div>
+        );
+    }
+}

source/react-mde/src/components-layout/TabbedLayout.tsx

@@ -0,0 +1,90 @@
+import * as React from "react";
+import {Command, LayoutProps} from "../types";
+import {ReactMde} from "../ReactMde";
+import {MdePreview, MdeEditor, MdeToolbar} from "../components";
+
+export const TAB_CODE: string = "TAB_CODE";
+export const TAB_PREVIEW: string = "TAB_PREVIEW";
+
+export class TabbedLayout extends React.Component<LayoutProps, {}> {
+    state = {
+        tab: TAB_CODE,
+    };
+
+    editorRef: MdeEditor;
+    previewRef: MdePreview;
+
+    /**
+     * Handler for the textArea value change
+     * @memberOf ReactMde
+     */
+    handleMdeStateChange = (value) => {
+        const {onChange} = this.props;
+        onChange(value);
+    }
+
+    handleCommand = (command: Command) => {
+        const { onCommand } = this.props;
+        onCommand(command);
+    }
+
+    /**
+     * Renders react-mde
+     * @returns
+     * @memberOf ReactMde
+     */
+    render() {
+
+        const { buttonContentOptions, commands, mdeEditorState, emptyPreviewHtml, readOnly } = this.props;
+
+        let styleTabCode = "mde-tab";
+        let styleTabPreview = "mde-tab";
+        switch (this.state.tab) {
+            case TAB_CODE: styleTabCode += " mde-tab-activated"; break;
+            case TAB_PREVIEW: styleTabPreview += " mde-tab-activated"; break;
+        }
+
+        return (
+            <div className="react-mde-tabbed-layout">
+                <MdeToolbar
+                    buttonContentOptions={buttonContentOptions}
+                    commands={commands}
+                    onCommand={this.handleCommand}
+                    readOnly={readOnly}
+                >
+                    <div className="mde-tabs">
+                        <button
+                            type="button"
+                            className={styleTabCode}
+                            onClick={() => this.setState({tab: TAB_CODE})}
+                        >
+                            Code
+                        </button>
+                        <button
+                            type="button"
+                            className={styleTabPreview}
+                            onClick={() => this.setState({tab: TAB_PREVIEW})}
+                        >
+                            Preview
+                        </button>
+                    </div>
+                </MdeToolbar>
+                {
+                    this.state.tab === TAB_CODE ?
+                        <MdeEditor
+                            editorRef={(c) => this.editorRef = c}
+                            onChange={this.handleMdeStateChange}
+                            editorState={mdeEditorState}
+                            readOnly={readOnly}
+                        />
+                    :
+                        < MdePreview
+                            previewRef={(c) => this.previewRef = c}
+                            html={mdeEditorState ? mdeEditorState.html : ""}
+                            emptyPreviewHtml={emptyPreviewHtml}
+                        />
+                }
+            </div>
+        );
+    }
+}

source/react-mde/src/components-layout/VerticalLayout.tsx

@@ -0,0 +1,60 @@
+import * as React from "react";
+import {Command, LayoutProps} from "../types";
+import {ReactMde} from "../ReactMde";
+import {MdePreview, MdeEditor, MdeToolbar} from "../components";
+import * as classNames from "classnames";
+
+export class VerticalLayout extends React.Component<LayoutProps, {}> {
+    editorRef: MdeEditor;
+    previewRef: MdePreview;
+
+    /**
+     * Handler for the textArea value change
+     * @memberOf ReactMde
+     */
+    handleMdeStateChange = (value) => {
+        const {onChange} = this.props;
+        onChange(value);
+    }
+
+    handleCommand = (command: Command) => {
+        const {onCommand} = this.props;
+        onCommand(command);
+    }
+
+    /**
+     * Renders react-mde
+     * @returns
+     * @memberOf ReactMde
+     */
+    render() {
+        const {buttonContentOptions, commands, mdeEditorState, layoutOptions, emptyPreviewHtml, readOnly} = this.props;
+        const finalLayoutOptions = layoutOptions ? {...layoutOptions} : {};
+
+        return (
+            <div className="react-mde-vertical-layout">
+                <MdeToolbar
+                    buttonContentOptions={buttonContentOptions}
+                    commands={commands}
+                    onCommand={this.handleCommand}
+                    readOnly={readOnly}
+                />
+                <div className="react-mde-content">
+                    <MdeEditor
+                        className={classNames(finalLayoutOptions.editorClassName)}
+                        editorRef={(c) => this.editorRef = c}
+                        onChange={this.handleMdeStateChange}
+                        editorState={mdeEditorState}
+                        readOnly={readOnly}
+                    />
+                    <MdePreview
+                        className={classNames(finalLayoutOptions.previewClassName)}
+                        previewRef={(c) => this.previewRef = c}
+                        html={mdeEditorState ? mdeEditorState.html : ""}
+                        emptyPreviewHtml={emptyPreviewHtml}
+                    />
+                </div>
+            </div>
+        );
+    }
+}

source/react-mde/src/components-layout/index.tsx

@@ -0,0 +1,4 @@
+export * from "./VerticalLayout";
+export * from "./NoPreviewLayout";
+export * from "./HorizontalLayout";
+export * from "./TabbedLayout";

source/react-mde/src/components/MdeEditor.tsx

@@ -0,0 +1,77 @@
+import * as React from "react";
+import {MdeState, Command} from "../types";
+import {Editor, EditorState} from "draft-js";
+import {boldCommand, codeCommand, italicCommand, tabCommand} from "../commands";
+
+export interface MdeEditorProps {
+    className?: string;
+    onChange: (value: EditorState) => void;
+    editorRef?: (ref: MdeEditor) => void;
+    editorState: MdeState;
+    readOnly: boolean;
+}
+
+export class MdeEditor extends React.Component<MdeEditorProps, {}> {
+    editorRef: Editor;
+
+    handleOnChange = (editorState: EditorState) => {
+        const {onChange} = this.props;
+        onChange(editorState);
+    }
+
+    executeCastAsEditorState = (commandToExecute: Command, editorState: EditorState, data?: any): EditorState => {
+        const newEditorState = commandToExecute.execute(editorState, data) as EditorState;
+        return newEditorState;
+    }
+
+    handleKeyCommand = (command, editorState) => {
+        const {onChange} = this.props;
+        switch (command) {
+            case "bold":
+                onChange(this.executeCastAsEditorState(boldCommand, editorState));
+                return "handled";
+
+            case "italic":
+                onChange(this.executeCastAsEditorState(italicCommand, editorState));
+                return "handled";
+
+            case "code":
+                onChange(this.executeCastAsEditorState(codeCommand, editorState));
+                return "handled";
+
+            default:
+                return "not-handled";
+        }
+    }
+
+    handleTab = (event) => {
+        event.preventDefault();
+
+        const {
+            editorState: {draftEditorState},
+            onChange,
+        } = this.props;
+        onChange(this.executeCastAsEditorState(tabCommand, draftEditorState, event.shiftKey));
+    }
+
+    render() {
+        const {
+            editorState: {draftEditorState},
+            className,
+            readOnly,
+        } = this.props;
+        return (
+            <div className={`mde-text ${className || ""}`}>
+                <Editor
+                    ref={(editor) => (this.editorRef = editor)}
+                    stripPastedStyles={true}
+                    editorState={draftEditorState}
+                    onChange={this.handleOnChange}
+                    onTab={this.handleTab}
+                    handleKeyCommand={this.handleKeyCommand}
+                    readOnly={readOnly}
+                />
+            </div>
+        );
+    }
+}

source/react-mde/src/components/MdePreview.tsx

@@ -0,0 +1,28 @@
+import * as React from "react";
+
+export interface ReactMdePreviewProps {
+    className?: string;
+    previewRef?: (ref: MdePreview) => void;
+    html: string;
+    emptyPreviewHtml: string;
+}
+
+export interface MdePreviewState {
+}
+
+export class MdePreview extends React.Component<ReactMdePreviewProps, MdePreviewState> {
+    previewRef: HTMLDivElement;
+
+    render() {
+        const {html, className} = this.props;
+        return (
+            <div className={`mde-preview ${className || ""}`}>
+                <div
+                    className="mde-preview-content"
+                    dangerouslySetInnerHTML={{__html: html || "<p>&nbsp;</p>" }}
+                    ref={(p) => this.previewRef = p}
+                />
+            </div>
+        );
+    }
+}

source/react-mde/src/components/MdeToolbar.tsx

@@ -0,0 +1,56 @@
+import * as React from "react";
+import {Command, ButtonContentOptions} from "../types";
+import {MdeToolbarButtonGroup} from "./MdeToolbarButtonGroup";
+import {MdeToolbarDropdown} from "./MdeToolbarDropdown";
+import {MdeToolbarButton} from "./MdeToolbarButton";
+
+export interface MdeToolbarProps {
+    buttonContentOptions: ButtonContentOptions;
+    commands: Command[][];
+    onCommand: (command: Command) => void;
+    readOnly: boolean;
+}
+
+export const MdeToolbar: React.SFC<MdeToolbarProps> = (props) => {
+    const {buttonContentOptions, children, commands, onCommand, readOnly} = props;
+    if ((!commands || commands.length === 0) && !children) {
+        return null;
+    }
+    return (
+        <div className="mde-header">
+            {
+                commands.map((cg: Command[], i: number) => (
+                    <MdeToolbarButtonGroup key={i}>
+                        {
+                            cg.map((c: Command, j) => {
+                                if (c.children) {
+                                    return (
+                                        <MdeToolbarDropdown
+                                            key={j}
+                                            buttonProps={c.buttonProps}
+                                            buttonContentOptions={buttonContentOptions}
+                                            buttonContent={c.buttonContentBuilder(buttonContentOptions)}
+                                            commands={c.children}
+                                            onCommand={(cmd) => onCommand(cmd)}
+                                            readOnly={readOnly}
+                                        />
+                                    );
+                                }
+                                return <MdeToolbarButton
+                                    key={j}
+                                    buttonContent={c.buttonContentBuilder(buttonContentOptions)}
+                                    buttonProps={c.buttonProps}
+                                    onClick={() => onCommand(c as Command)}
+                                    readOnly={readOnly}
+                                    buttonComponentClass={c.buttonComponentClass}
+                                />;
+                            })
+                        }
+                    </MdeToolbarButtonGroup>))
+            }
+            <div className="mde-toolbar-children">
+                {children}
+            </div>
+        </div>
+    );
+};

source/react-mde/src/components/MdeToolbarButton.tsx

@@ -0,0 +1,24 @@
+import * as React from "react";
+
+export interface MdeToolbarButtonProps {
+    buttonComponentClass?: React.ComponentClass | string;
+    buttonProps: any;
+    buttonContent: React.ReactNode;
+    onClick: React.MouseEventHandler<any>;
+    readOnly: boolean;
+}
+
+export const MdeToolbarButton: React.SFC<MdeToolbarButtonProps> = (props) => {
+    const {buttonComponentClass, buttonContent, buttonProps, onClick, readOnly} = props;
+    const finalButtonComponent = buttonComponentClass || "button";
+    return (
+        <li className="mde-header-item">
+            {React.createElement(finalButtonComponent, {
+                ...buttonProps, ...{
+                    onClick,
+                    disabled: readOnly,
+                },
+            }, buttonContent)}
+        </li>
+    );
+};

source/react-mde/src/components/MdeToolbarButtonGroup.tsx

@@ -0,0 +1,12 @@
+import * as React from "react";
+
+export interface MdeToolbarButtonGroupProps {
+}
+
+export const MdeToolbarButtonGroup: React.SFC<MdeToolbarButtonGroupProps> = (props) => {
+    return (
+        <ul className="mde-header-group">
+            {props.children}
+        </ul>
+    );
+};

source/react-mde/src/components/MdeToolbarDropdown.tsx

@@ -0,0 +1,124 @@
+import * as React from "react";
+import {Command, ButtonContentOptions} from "../types";
+import {MdeToolbarButton} from "./MdeToolbarButton";
+
+export interface HeaderItemDropdownProps {
+    buttonContentOptions: ButtonContentOptions;
+    buttonContent: React.ReactNode;
+    buttonProps: any;
+    commands: Command[];
+    onCommand: (command: Command) => void;
+    readOnly: boolean;
+}
+
+export interface HeaderItemDropdownState {
+    open: boolean;
+}
+
+export class MdeToolbarDropdown extends React.Component<HeaderItemDropdownProps, HeaderItemDropdownState> {
+
+    dropdown: any; // TODO: Change this type
+    dropdownOpener: any; // TODO: Change this type
+
+    constructor(props: HeaderItemDropdownProps) {
+        super(props);
+        this.state = {
+            open: false,
+        };
+    }
+
+    componentDidMount() {
+        document.addEventListener("click", this.handleGlobalClick, false);
+    }
+
+    componentWillUnmount() {
+        document.removeEventListener("click", this.handleGlobalClick, false);
+    }
+
+    handleGlobalClick: EventListenerOrEventListenerObject = (e: Event) => {
+        if (this.clickedOutside(e)) {
+            this.closeDropdown();
+        }
+    }
+
+    openDropdown = () => {
+        this.setState({
+            open: true,
+        });
+    }
+
+    closeDropdown() {
+        this.setState({
+            open: false,
+        });
+    }
+
+    clickedOutside = (e: Event) => {
+        const {target} = e;
+        return this.state.open
+            && this.dropdown
+            && this.dropdownOpener
+            && !this.dropdown.contains(target)
+            && !this.dropdownOpener.contains(target);
+    }
+
+    handleOnClickCommand = (e: React.SyntheticEvent<any>, command: Command) => {
+        const {onCommand} = this.props;
+        onCommand(command);
+        this.closeDropdown();
+    }
+
+    handleClick = () => {
+        if (!this.state.open)
+            this.openDropdown();
+        else
+            this.closeDropdown();
+    }
+
+    render() {
+        const {buttonContentOptions, commands, readOnly} = this.props;
+        const {open} = this.state;
+
+        const items = commands.map((command, index) => (
+            <MdeToolbarButton
+                key={`header-item${index}`}
+                buttonProps={command.buttonProps}
+                buttonContent={command.buttonContentBuilder(buttonContentOptions)}
+                onClick={(e) => this.handleOnClickCommand(e, command)}
+                readOnly={readOnly}
+            />
+        ));
+
+        const dropdown = open
+            ? (
+                <ul
+                    className="react-mde-dropdown"
+                    ref={(ref) => {
+                        this.dropdown = ref;
+                    }}
+                >
+                    {items}
+                </ul>
+            )
+            : null;
+
+        const {buttonContent, buttonProps} = this.props;
+
+        return (
+            <li className="mde-header-item">
+                <button
+                    type="button"
+                    {...buttonProps}
+                    ref={(ref) => {
+                        this.dropdownOpener = ref;
+                    }}
+                    onClick={this.handleClick}
+                    disabled={readOnly}
+                >
+                    {buttonContent}
+                </button>
+                {dropdown}
+            </li>
+        );
+    }
+}

source/react-mde/src/components/MdeToolbarIcon.tsx

@@ -0,0 +1,9 @@
+import * as React from "react";
+
+export interface MdeToolbarIconProps {
+    icon: string;
+}
+
+export const MdeToolbarIcon: React.SFC<MdeToolbarIconProps> = (({icon}) => {
+    return <i className={`fas fa-${icon}`} aria-hidden="true"/>;
+});

source/react-mde/src/components/index.tsx

@@ -0,0 +1,7 @@
+export * from "./MdeToolbarButtonGroup";
+export * from "./MdeToolbarButton";
+export * from "./MdeToolbarDropdown";
+export * from "./MdeToolbarIcon";
+export * from "./MdePreview";
+export * from "./MdeEditor";
+export * from "./MdeToolbar";

source/react-mde/src/index.tsx

@@ -0,0 +1,19 @@
+import * as ReactMdeCommands from "./commands";
+import * as ReactMdeTypes from "./types";
+import * as ReactMdeComponents from "./components";
+import * as ReactMdeLayoutComponents from "./components-layout";
+import * as DraftUtil from "./util/DraftUtil";
+import * as MarkdownUtil from "./util/MarkdownUtil";
+import { ReactMde, ReactMdeProps } from "./ReactMde";
+
+export {
+    ReactMdeTypes,
+    ReactMdeCommands,
+    ReactMdeComponents,
+    ReactMdeLayoutComponents,
+    ReactMdeProps,
+    DraftUtil,
+    MarkdownUtil,
+};
+
+export default ReactMde;

source/react-mde/src/styles/react-mde-all.scss

@@ -0,0 +1,8 @@
+@import "react-mde-toolbar.scss";
+@import "react-mde-editor.scss";
+@import "react-mde-preview.scss";
+@import "react-mde.scss";
+@import "react-mde-vertical-layout.scss";
+@import "react-mde-no-preview-layout.scss";
+@import "react-mde-horizontal-layout.scss";
+@import "react-mde-tabbed-layout.scss";

source/react-mde/src/styles/react-mde-editor.scss

@@ -0,0 +1,10 @@
+@import "variables.scss";
+
+.mde-text {
+
+  .public-DraftEditor-content {
+    width: 100%;
+    min-height: $mde-editor-default-min-height;
+    padding: $mde-editor-padding;
+  }
+}

source/react-mde/src/styles/react-mde-horizontal-layout.scss

@@ -0,0 +1,40 @@
+@import "variables.scss";
+
+.react-mde-horizontal-layout {
+    height: 100%;
+    display: flex;
+    flex-direction: column;
+
+    .mde-tabs {
+        display: flex;
+        align-items: stretch;
+
+        .mde-tab {
+            border: none;
+            border-left: 1px solid $mde-border-color;
+            padding: 10px;
+            background: none;
+        }
+
+        .mde-tab:hover {
+            cursor: pointer;
+        }
+    }
+
+    .mde-content {
+        display: flex;
+        height: 100%;
+
+        .mde-text {
+            min-width: 50%;
+            overflow-y: auto;
+            border-radius: 0;
+        }
+
+        .mde-preview {
+            min-width: 50%;
+            border-left: 1px solid $mde-border-color;
+            overflow-y: auto;
+        }
+    }
+}

source/react-mde/src/styles/react-mde-no-preview-layout.scss

@@ -0,0 +1,11 @@
+@import "variables.scss";
+
+.react-mde-no-preview-layout {
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+
+  .mde-text {
+    overflow-y: auto;
+  }
+}

source/react-mde/src/styles/react-mde-preview.scss

@@ -0,0 +1,127 @@
+@import "variables.scss";
+
+.mde-preview {
+  min-height: $mde-preview-default-min-height;
+  .mde-preview-content {
+    padding: $mde-preview-padding;
+
+    p, blockquote, ul, ol, dl, table, pre {
+      margin-top: 0;
+      margin-bottom: 16px;
+    }
+
+    h1, h2, h3 {
+      margin-top: 24px;
+      margin-bottom: 16px;
+      font-weight: 600;
+      line-height: 1.25;
+      border-bottom: 1px solid #eee;
+      padding-bottom: 0.3em;
+    }
+    h1 {
+      font-size: 1.6em;
+    }
+    h2 {
+      font-size: 1.4em;
+    }
+    h3 {
+      font-size: 1.2em;
+    }
+    ul, ol {
+      padding-left: 2em;
+    }
+    blockquote {
+      margin-left: 0;
+      padding: 0 1em;
+      color: #777;
+      border-left: 0.25em solid #ddd;
+      & > :first-child {
+        margin-top: 0;
+      }
+      & > :last-child {
+        margin-bottom: 0;
+      }
+    }
+
+    code {
+      padding: 0.2em 0 0.2em 0;
+      margin: 0;
+      font-size: 90%;
+      background-color: rgba(0, 0, 0, 0.04);
+      border-radius: 3px;
+      &::before, &::after {
+        letter-spacing: -0.2em;
+        content: "\00a0";
+      }
+    }
+
+    pre {
+      padding: 16px;
+      overflow: auto;
+      font-size: 85%;
+      line-height: 1.45;
+      background-color: #f7f7f7;
+      border-radius: 3px;
+
+      code {
+        display: inline;
+        padding: 0;
+        margin: 0;
+        overflow: visible;
+        line-height: inherit;
+        word-wrap: normal;
+        background-color: transparent;
+        border: 0;
+        &::before, &::after {
+          content: none;
+        }
+      }
+
+      > code {
+        padding: 0;
+        margin: 0;
+        font-size: 100%;
+        word-break: normal;
+        white-space: pre;
+        background: transparent;
+        border: 0;
+      }
+    }
+
+    a {
+      color: #4078c0;
+      text-decoration: none;
+      &:hover {
+        text-decoration: underline;
+      }
+    }
+    & > *:first-child {
+      margin-top: 0 !important;
+    }
+    & > *:last-child {
+      margin-bottom: 0 !important;
+    }
+    &::after {
+      display: table;
+      clear: both;
+      content: "";
+    }
+
+    table {
+      display: block;
+      width: 100%;
+      border-spacing: 0;
+      border-collapse: collapse;
+      thead {
+        th {
+          font-weight: bold;
+        }
+      }
+      th, td {
+        padding: 6px 13px;
+        border: 1px solid $mde-border-color;
+      }
+    }
+  }
+}
+