Tracks: Record page views on route changes. (https://github.com/woocommerce/woocommerce-admin/pull/452)

* Tracks: Record page views on route changes.

* adjust regex.

plugins/woocommerce-admin/client/layout/index.js

@@ -6,6 +6,7 @@ import { Component, Fragment } from '@wordpress/element';
 import { Router, Route, Switch } from 'react-router-dom';
 import { Slot } from 'react-slot-fill';
 import PropTypes from 'prop-types';
+import { get } from 'lodash';
 
 /**
  * Internal dependencies
@@ -15,8 +16,43 @@ import Header from 'layout/header';
 import { Controller, getPages } from './controller';
 import history from 'lib/history';
 import Notices from './notices';
+import { recordPageView } from 'lib/tracks';
 
 class Layout extends Component {
+	componentDidMount() {
+		this.recordPageViewTrack();
+	}
+
+	componentDidUpdate( prevProps ) {
+		const previousPath = get( prevProps, 'location.pathname' );
+		const currentPath = get( this.props, 'location.pathname' );
+
+		if ( ! previousPath || ! currentPath ) {
+			return;
+		}
+
+		if ( previousPath !== currentPath ) {
+			this.recordPageViewTrack();
+		}
+	}
+
+	recordPageViewTrack() {
+		const pathname = get( this.props, 'location.pathname' );
+		if ( ! pathname ) {
+			return;
+		}
+
+		// Remove leading slash, and camel case remaining pathname
+		let path = pathname.substring( 1 ).replace( /\//g, '_' );
+
+		// When pathname is `/` we are on the dashboard
+		if ( path.length === 0 ) {
+			path = 'dashboard';
+		}
+
+		recordPageView( path );
+	}
+
 	render() {
 		const { isEmbeded, ...restProps } = this.props;
 		return (