Adding analytics to docs

package.json

@@ -57,6 +57,8 @@
     "@types/node": "^10.12.18",
     "@types/react": "^16.8.3",
     "@types/react-dom": "^16.0.11",
+    "@types/react-router": "^4.4.4",
+    "@types/react-router-dom": "^4.3.1",
     "babel-loader": "^8.0.5",
     "copyfiles": "^2.1.0",
     "enzyme": "^3.8.0",
@@ -69,6 +71,7 @@
     "react-app-rewire-hot-loader": "^1.0.3",
     "react-app-rewired": "^2.0.2",
     "react-dom": "^16.8.1",
+    "react-ga": "^2.5.7",
     "react-hot-loader": "^4.6.3",
     "react-markdown-loader": "git+https://github.com/jamesmfriedman/react-markdown-loader.git#master",
     "react-router-dom": "^4.3.1",
@@ -89,4 +92,4 @@
     "not ie <= 11",
     "not op_mini all"
   ]
-}
+}

src/rmwc/docs/index.tsx

@@ -1,5 +1,8 @@
 import * as React from 'react';
 import * as ReactDOM from 'react-dom';
+import { Router } from 'react-router-dom';
+import createBrowserHistory from 'history/createBrowserHistory'
+import ReactGA from 'react-ga';
 
 import '@material/button/dist/mdc.button.css';
 import '@material/card/dist/mdc.card.css';
@@ -47,15 +50,17 @@ import { AppContainer } from 'react-hot-loader';
 import App from './App';
 // @ts-ignore
 import { unregister } from './registerServiceWorker';
-// @ts-ignore
-import { BrowserRouter as Router } from 'react-router-dom';
 import { RMWCProvider } from '@rmwc/provider';
 
+const history = createBrowserHistory({
+  basename: process.env.PUBLIC_URL
+});
+
 const renderApp = (Component: React.ComponentType<any>) => {
   ReactDOM.render(
     <RMWCProvider>
       <AppContainer>
-        <Router basename={process.env.PUBLIC_URL}>
+        <Router history={history}>
           <Component location={window.location.href} />
         </Router>
       </AppContainer>
@@ -70,8 +75,17 @@ if (module.hot) {
   module.hot.accept(['./App'], () => renderApp(App));
 }
 
+const initAnalytics = () => {
+  ReactGA.initialize('UA-97702366-5');
+  const doPageView = () => ReactGA.pageview(window.location.pathname + window.location.search)
+  history.listen(() => doPageView());
+  doPageView();
+}
+
+
 const init = () => {
   renderApp(App);
+  initAnalytics();
   unregister();
 };