refactor: moved to compatible with React 17

.eslintignore

@@ -0,0 +1 @@
+test/**

.eslintrc

@@ -2,11 +2,12 @@
   "extends": "eslint-config-airbnb",
   "env": {
     "browser": true,
-    "mocha": true,
+    "jest": true,
     "node": true
   },
   "parser": "babel-eslint",
   "rules": {
+    "no-restricted-globals": [1, "isFinite"],
     "valid-jsdoc": 2,
     "react/jsx-uses-react": 2,
     "react/jsx-uses-vars": 2,

.prettierrc

@@ -0,0 +1,4 @@
+{
+  "singleQuote": true,
+  "trailingComma": "all"
+}

.travis.yml

@@ -1,10 +1,10 @@
 language: node_js
 node_js:
-  - "8.5.0"
+  - "14"
 services:
   - xvfb
 before_script:
   - export DISPLAY=:99.0
 script:
-  - ./node_modules/karma/bin/karma start test/karma.conf.js --browsers Firefox --single-run --no-auto-watch --capture-timeout 60000
+  - npm run test
   - npm run lint

babel.config.js

@@ -0,0 +1,29 @@
+const BABEL_ENV = process.env.BABEL_ENV;
+
+const plugins = [
+  '@babel/plugin-proposal-export-default-from',
+  '@babel/plugin-proposal-export-namespace-from',
+  ['@babel/plugin-proposal-decorators', { legacy: true }],
+  ['@babel/plugin-proposal-class-properties', { loose: true }],
+  '@babel/plugin-proposal-object-rest-spread',
+];
+
+if (BABEL_ENV === 'umd') {
+  plugins.push('@babel/plugin-external-helpers');
+}
+
+// eslint-disable-next-line no-nested-ternary
+const babelModules = BABEL_ENV === 'commonjs' ? 'commonjs' : BABEL_ENV === 'test' ? 'auto' : false;
+
+module.exports = {
+  plugins,
+  presets: [
+    ['@babel/preset-env', {
+      modules: babelModules,
+      targets: {
+        browsers: ['last 2 versions'],
+      },
+    }],
+    '@babel/preset-react',
+  ],
+};

jest.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+  clearMocks: true,
+  testEnvironment: 'jsdom',
+  verbose: true,
+};