Add ad to the homepage as a card (#362)

* coming along well

* coming along well

* adding custom react element

* coming along well

* coming along well

* coming along well

* working pretty well

* almost done

* essentially working just could use a couple touchups

* cleanup and lint errors

* fix lint errors

* fix flow errors

* possible bugfix

* dynamically set width and height

* only run when rowdata is populated

* trying using ref

* better way to check for card population

* working implementation

* working implementation

* clean up flow and clean up script

* fix typo in comment and logs

ui/page/home/view.jsx

@@ -1,8 +1,9 @@
 // @flow
 import * as ICONS from 'constants/icons';
 import * as PAGES from 'constants/pages';
-import { SITE_NAME, SIMPLE_SITE, ENABLE_NO_SOURCE_CLAIMS } from 'config';
+import { SHOW_ADS, SITE_NAME, SIMPLE_SITE, ENABLE_NO_SOURCE_CLAIMS } from 'config';
-import React from 'react';
+import Ads from 'web/component/ads';
+import React  from 'react';
 import Page from 'component/page';
 import Button from 'component/button';
 import ClaimTilesDiscover from 'component/claimTilesDiscover';
@@ -74,6 +75,7 @@ function HomePage(props: Props) {
 
     return (
       <div key={title} className="claim-grid__wrapper">
+        {/* category header */}
         {index !== 0 && title && typeof title === 'string' && (
           <h1 className="claim-grid__header">
             <Button navigate={route || link} button="link">
@@ -91,6 +93,7 @@ function HomePage(props: Props) {
           </WaitUntilOnPage>
         )}
 
+        {/* view more button */}
         {(route || link) && (
           <Button
             className="claim-grid__title--secondary"
@@ -108,6 +111,135 @@ function HomePage(props: Props) {
     doFetchActiveLivestreams();
   }, []);
 
+  // returns true if passed element is fully visible on screen
+  function isScrolledIntoView(el) {
+    const rect = el.getBoundingClientRect();
+    const elemTop = rect.top;
+    const elemBottom = rect.bottom;
+
+    // Only completely visible elements return true:
+    const isVisible = (elemTop >= 0) && (elemBottom <= window.innerHeight);
+    return isVisible;
+  }
+
+  //
+  React.useEffect(() => {
+    if (authenticated || !SHOW_ADS) {
+      return;
+    }
+
+    (async function() {
+      // test if adblock is enabled
+      let adBlockEnabled = false;
+      const googleAdUrl = 'https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js';
+      try {
+        await fetch(new Request(googleAdUrl)).catch(_ => { adBlockEnabled = true });
+      } catch (e) {
+        adBlockEnabled = true;
+      } finally {
+        if (!adBlockEnabled) {
+          // select the cards on page
+          let cards = document.getElementsByClassName('card claim-preview--tile');
+
+          // eslint-disable-next-line no-inner-declarations
+          function checkFlag() {
+            if (cards.length === 0) {
+              window.setTimeout(checkFlag, 100);
+            } else {
+              // find the last fully visible card
+              let lastCard;
+              for (const card of cards) {
+                const isFullyVisible = isScrolledIntoView(card);
+                if (!isFullyVisible) break;
+                lastCard = card;
+              }
+
+              // clone the last card
+              // $FlowFixMe
+              const clonedCard = lastCard.cloneNode(true);
+
+              // insert cloned card
+              // $FlowFixMe
+              lastCard.parentNode.insertBefore(clonedCard, lastCard);
+
+              // delete last card so that it doesn't mess up formatting
+              // $FlowFixMe
+              // lastCard.remove();
+
+              // change the appearance of the cloned card
+              // $FlowFixMe
+              clonedCard.querySelector('.claim__menu-button').remove();
+
+              // $FlowFixMe
+              clonedCard.querySelector('.truncated-text').innerHTML = 'Hate these? Login to Odysee for an ad free experience';
+
+              // $FlowFixMe
+              clonedCard.querySelector('.claim-tile__info').remove();
+
+              // $FlowFixMe
+              clonedCard.querySelector('[role="none"]').removeAttribute('href');
+
+              // $FlowFixMe
+              clonedCard.querySelector('.claim-tile__header').firstChild.href = '/$/signin';
+
+              // $FlowFixMe
+              clonedCard.querySelector('.claim-tile__title').firstChild.removeAttribute('aria-label');
+
+              // $FlowFixMe
+              clonedCard.querySelector('.claim-tile__title').firstChild.removeAttribute('title');
+
+              // $FlowFixMe
+              clonedCard.querySelector('.claim-tile__header').firstChild.removeAttribute('aria-label');
+
+              // $FlowFixMe
+              clonedCard.querySelector('.media__thumb').replaceWith(document.getElementsByClassName('homepageAdContainer')[0]);
+
+              // show the homepage ad which is not displayed at first
+              document.getElementsByClassName('homepageAdContainer')[0].style.display = 'block';
+
+              // $FlowFixMe
+              const imageHeight = window.getComputedStyle(lastCard.querySelector('.media__thumb')).height;
+              // $FlowFixMe
+              const imageWidth = window.getComputedStyle(lastCard.querySelector('.media__thumb')).width;
+
+              var styles = `#av-container, #AVcontent, #aniBox {
+                height: ${imageHeight} !important;
+                width: ${imageWidth} !important;
+              }`;
+
+              var styleSheet = document.createElement('style');
+              styleSheet.type = 'text/css';
+              styleSheet.innerText = styles;
+              // $FlowFixMe
+              document.head.appendChild(styleSheet);
+
+              clonedCard.style.display = 'none';
+
+              let timeoutCount = 0;
+              // eslint-disable-next-line no-inner-declarations
+              function checkForAniview() {
+                const aniBoxDiv = document.getElementsByClassName('homepageAdContainer')[0].querySelector('#aniBox');
+
+                if (!aniBoxDiv) {
+                  timeoutCount += 100;
+                  if (timeoutCount < 500) {
+                    window.setTimeout(checkForAniview, 100);
+                  } else {
+
+                  }
+                } else {
+                  clonedCard.style.display = 'block';
+                }
+              }
+              checkForAniview();
+            }
+          }
+          checkFlag();
+        }
+      }
+    })();
+  }, []);
+
   return (
     <Page fullWidthPage>
       {!SIMPLE_SITE && (authenticated || !IS_WEB) && !subscribedChannels.length && (
@@ -126,6 +258,7 @@ function HomePage(props: Props) {
       )}
       {/* @if TARGET='web' */}
       {SIMPLE_SITE && <Meme />}
+      <Ads type="homepage" />
       {/* @endif */}
       {rowData.map(({ title, route, link, icon, help, pinnedUrls: pinUrls, options = {} }, index) => {
         // add pins here

web/component/ads/view.jsx

@@ -6,9 +6,6 @@ import { withRouter } from 'react-router';
 import I18nMessage from 'component/i18nMessage';
 import Button from 'component/button';
 import classnames from 'classnames';
-// $FlowFixMe
-
-const IS_MOBILE = typeof window.orientation !== 'undefined';
 
 const ADS_URL = 'https://cdn.vidcrunch.com/integrations/618bb4d28aac298191eec411/Lbry_Odysee.com_Responsive_Floating_DFP_Rev70_1011.js';
 const ADS_TAG = 'vidcrunchJS537102317';
@@ -16,6 +13,9 @@ const ADS_TAG = 'vidcrunchJS537102317';
 const IOS_ADS_URL = 'https://cdn.vidcrunch.com/integrations/618bb4d28aac298191eec411/Lbry_Odysee.com_Mobile_Floating_DFP_Rev70_1611.js';
 const IOS_ADS_TAG = 'vidcrunchJS199212779';
 
+const HOMEPAGE_ADS_URL = 'https://cdn.vidcrunch.com/integrations/618bb4d28aac298191eec411/Lbry_Odysee.com_Responsive_Floating_300x169_DFP_Rev70_1211.js';
+const HOMEPAGE_ADS_TAG = 'vidcrunchJS330442776';
+
 const IS_IOS =
   (/iPad|iPhone|iPod/.test(navigator.platform) ||
     // for iOS 13+ , platform is MacIntel, so use this to test
@@ -33,22 +33,29 @@ type Props = {
 function Ads(props: Props) {
   const {
     location: { pathname },
-    type = 'sidebar',
+    type = 'video',
     small,
   } = props;
 
+  // load ad and tags here
   let scriptUrlToUse;
   let tagNameToUse;
-  if (IS_IOS) {
+  if (type === 'video') {
-    tagNameToUse = IOS_ADS_TAG;
+    if (IS_IOS) {
-    scriptUrlToUse = IOS_ADS_URL;
+      tagNameToUse = IOS_ADS_TAG;
-  } else {
+      scriptUrlToUse = IOS_ADS_URL;
-    tagNameToUse = ADS_TAG;
+    } else {
-    scriptUrlToUse = ADS_URL;
+      tagNameToUse = ADS_TAG;
+      scriptUrlToUse = ADS_URL;
+    }
+  } else if (type === 'homepage') {
+    tagNameToUse = HOMEPAGE_ADS_TAG;
+    scriptUrlToUse = HOMEPAGE_ADS_URL;
   }
 
+  // add script to DOM
   useEffect(() => {
-    if (SHOW_ADS && type === 'video') {
+    if (SHOW_ADS) {
       let script;
       try {
         let fjs = document.getElementsByTagName('script')[0];
@@ -56,30 +63,18 @@ function Ads(props: Props) {
         script.src = scriptUrlToUse;
         // $FlowFixMe
         fjs.parentNode.insertBefore(script, fjs);
+
+        return () => {
+          // $FlowFixMe
+          document.head.removeChild(script);
+        };
       } catch (e) {}
     }
+
+    // TODO: remove the script when it exists?
   }, [type]);
 
-  useEffect(() => {
+  // display to say "sign up to not see these"
-    if (SHOW_ADS && !IS_MOBILE && type === 'sidebar') {
-      const script = document.createElement('script');
-      script.src = ADS_URL;
-      script.defer = true;
-      // $FlowFixMe
-      document.body.appendChild(script);
-      return () => {
-        // $FlowFixMe
-        document.body.removeChild(script);
-        // if user navigates too rapidly, <style> tags can build up
-        // $FlowFixMe
-        if (document.body.getElementsByTagName('style').length) {
-          // $FlowFixMe
-          document.body.getElementsByTagName('style')[0].remove();
-        }
-      };
-    }
-  }, [type]);
-
   const adsSignInDriver = (
     <I18nMessage
       tokens={{
@@ -96,6 +91,7 @@ function Ads(props: Props) {
     </I18nMessage>
   );
 
+  // ad shown in the related videos area
   const videoAd = (
     <div className="ads__claim-item">
       <div id={tagNameToUse} className="ads__injected-video" style={{display: 'none'}} />
@@ -110,12 +106,22 @@ function Ads(props: Props) {
     </div>
   );
 
+  // homepage ad in a card
+  const homepageCardAd = (
+    <div className="homepageAdContainer media__thumb" style={{display: 'none'}}>
+      <div id={tagNameToUse} className="homepageAdDiv media__thumb" style={{display: 'none'}} />
+    </div>
+  );
+
   if (!SHOW_ADS) {
     return false;
   }
   if (type === 'video') {
     return videoAd;
   }
+  if (type === 'homepage') {
+    return homepageCardAd;
+  }
 }
 
 export default withRouter(Ads);