use second card on small screens and dont load script if authenticated (#406)

ui/page/home/view.jsx

@@ -149,11 +149,21 @@ function HomePage(props: Props) {
             } else {
               // find the last fully visible card
               let lastCard;
+
+              // width of browser window
+              const windowWidth = window.innerWidth;
+
+              // on small screens, grab the second item
+              if (windowWidth <= 900) {
+                lastCard = cards[1];
+              } else {
+                // otherwise, get the last fully visible card
                 for (const card of cards) {
                   const isFullyVisible = isScrolledIntoView(card);
                   if (!isFullyVisible) break;
                   lastCard = card;
                 }
+              }
 
               // clone the last card
               // $FlowFixMe

web/component/ads/index.js

@@ -1,12 +1,14 @@
 import { connect } from 'react-redux';
 import { selectTheme } from 'redux/selectors/settings';
 import { makeSelectClaimForUri, selectClaimIsNsfwForUri } from 'redux/selectors/claims';
+import { selectUserVerifiedEmail } from 'redux/selectors/user';
 import Ads from './view';
 
 const select = (state, props) => ({
   theme: selectTheme(state),
   claim: makeSelectClaimForUri(props.uri)(state),
   isMature: selectClaimIsNsfwForUri(state, props.uri),
+  authenticated: selectUserVerifiedEmail(state),
 });
 
 export default connect(select)(Ads);

web/component/ads/view.jsx

@@ -29,6 +29,7 @@ type Props = {
   small: boolean,
   claim: Claim,
   isMature: boolean,
+  authenticated: boolean,
 };
 
 function Ads(props: Props) {
@@ -36,6 +37,7 @@ function Ads(props: Props) {
     location: { pathname },
     type = 'video',
     small,
+    authenticated,
   } = props;
 
   // load ad and tags here
@@ -56,7 +58,7 @@ function Ads(props: Props) {
 
   // add script to DOM
   useEffect(() => {
-    if (SHOW_ADS) {
+    if (SHOW_ADS && !authenticated) {
       let script;
       try {
         script = document.createElement('script');
@@ -70,8 +72,6 @@ function Ads(props: Props) {
         };
       } catch (e) {}
     }
-
-    // TODO: remove the script when it exists?
   }, []);
 
   // display to say "sign up to not see these"