provide separate routes for each homepage tab.

resources/frontend_client/app/home/components/HeaderTabs.react.js

@@ -43,8 +43,8 @@ export default class HeaderTabs extends Component {
 
         return (
             <div className="bg-brand text-white">
-                <a className={activityTab} onClick={() => this.onClickActivityTab()}>Activity</a>
-                <a className={questionsTab} onClick={() => this.onClickQuestionsTab()}>Saved Questions</a>
+                <a className={activityTab} href="/">Activity</a>
+                <a className={questionsTab} href="/?questions">Saved Questions</a>
             </div>
         );
     }

resources/frontend_client/app/home/components/Homepage.react.js

@@ -3,7 +3,6 @@
 import React, { Component, PropTypes } from "react";
 
 import Greeting from "metabase/lib/greeting";
-import Icon from "metabase/components/Icon.react";
 
 import HeaderTabs from "./HeaderTabs.react";
 import Activity from "./Activity.react";
@@ -12,6 +11,7 @@ import RecentViews from "./RecentViews.react";
 import CardFilters from "./CardFilters.react";
 import Smile from './Smile.react';
 
+
 export default class Homepage extends Component {
 
     constructor(props) {

resources/frontend_client/app/home/home.controllers.js

@@ -8,6 +8,7 @@ import thunkMidleware from "redux-thunk";
 
 import HomepageApp from './containers/HomepageApp.react';
 import * as reducers from './reducers';
+import { setSelectedTab } from './actions';
 
 // import { devTools, persistState } from 'redux-devtools';
 // import { LogMonitor } from 'redux-devtools/lib/react';
@@ -32,7 +33,7 @@ var HomeControllers = angular.module('metabase.home.controllers', [
     'metabase.metabase.services'
 ]);
 
-HomeControllers.controller('Homepage', ['$scope', '$location', function($scope, $location) {
+HomeControllers.controller('Homepage', ['$scope', '$location', '$route', '$routeParams', function($scope, $location, $route, $routeParams) {
     $scope.Component = HomepageApp;
     $scope.props = {
         user: $scope.user,
@@ -45,6 +46,35 @@ HomeControllers.controller('Homepage', ['$scope', '$location', function($scope,
     // TODO: reflect onboarding state
 
     // $scope.monitor = LogMonitor;
+
+    // mildly hacky way to prevent reloading controllers as the URL changes
+    var route = $route.current;
+    $scope.$on('$locationChangeSuccess', function (event) {
+        var newParams = $route.current.params;
+        var oldParams = route.params;
+
+        if ($route.current.$$route.controller === 'Homepage') {
+            $route.current = route;
+
+            angular.forEach(oldParams, function(value, key) {
+                delete $route.current.params[key];
+                delete $routeParams[key];
+            });
+            angular.forEach(newParams, function(value, key) {
+                $route.current.params[key] = value;
+                $routeParams[key] = value;
+            });
+        }
+    });
+
+    $scope.routeParams = $routeParams;
+    $scope.$watch('routeParams', function() {
+        if ($scope.routeParams.questions === true) {
+            $scope.store.dispatch(setSelectedTab('cards'));
+        } else {
+            $scope.store.dispatch(setSelectedTab('activity'));
+        }
+    }, true);
 }]);