Formatting, events and ad countdown added

1 files changed, 140 insertions, 80 deletions

diff --git a/src/js/plugins/ads.js b/src/js/plugins/ads.js
index 2f3b0669..8c9baf71 100644
--- a/src/js/plugins/ads.js
+++ b/src/js/plugins/ads.js
@@ -38,13 +38,16 @@ class Ads {
      * Get the ads instance ready.
      */
     ready() {
-        this.adsContainer = null;
-        this.adDisplayContainer = null;
-        this.adsManager = null;
-        this.adsLoader = null;
-        this.adsCuePoints = null;
+        this.elements = {
+            container: null,
+            displayContainer: null,
+        };
+        this.manager = null;
+        this.loader = null;
+        this.cuePoints = null;
         this.events = {};
         this.safetyTimer = null;
+        this.countdownTimer = null;
 
         // Set listeners on the Plyr instance
         this.listeners();
@@ -54,21 +57,17 @@ class Ads {
         this.startSafetyTimer(12000, 'ready()');
 
         // Setup a simple promise to resolve if the IMA loader is ready
-        this.adsLoaderPromise = new Promise(resolve => {
+        this.loaderPromise = new Promise(resolve => {
             this.on('ADS_LOADER_LOADED', () => resolve());
         });
-        this.adsLoaderPromise.then(() => {
-            this.player.debug.log('Ads loader resolved!', this.adsLoader);
-        });
 
         // Setup a promise to resolve if the IMA manager is ready
-        this.adsManagerPromise = new Promise(resolve => {
+        this.managerPromise = new Promise(resolve => {
             this.on('ADS_MANAGER_LOADED', () => resolve());
         });
-        this.adsManagerPromise.then(() => {
-            this.player.debug.log('Ads manager resolved!', this.adsManager);
 
-            // Clear the safety timer
+        // Clear the safety timer
+        this.managerPromise.then(() => {
             this.clearSafetyTimer('onAdsManagerLoaded()');
         });
 
@@ -86,23 +85,21 @@ class Ads {
      */
     setupIMA() {
         // Create the container for our advertisements
-        this.adsContainer = utils.createElement('div', {
+        this.elements.container = utils.createElement('div', {
             class: this.player.config.classNames.ads,
-            'data-badge-text': this.player.config.i18n.advertisement,
             hidden: '',
         });
-        this.player.elements.container.appendChild(this.adsContainer);
+        this.player.elements.container.appendChild(this.elements.container);
 
         // So we can run VPAID2
         google.ima.settings.setVpaidMode(google.ima.ImaSdkSettings.VpaidMode.ENABLED);
 
         // Set language
-        // Todo: Could make a config option out of this locale value.
-        google.ima.settings.setLocale('en');
+        google.ima.settings.setLocale(this.player.config.ads.language);
 
         // We assume the adContainer is the video container of the plyr element
         // that will house the ads
-        this.adDisplayContainer = new google.ima.AdDisplayContainer(this.adsContainer);
+        this.elements.displayContainer = new google.ima.AdDisplayContainer(this.elements.container);
 
         // Request video ads to be pre-loaded
         this.requestAds();
@@ -116,27 +113,27 @@ class Ads {
 
         try {
             // Create ads loader
-            this.adsLoader = new google.ima.AdsLoader(this.adDisplayContainer);
+            this.loader = new google.ima.AdsLoader(this.elements.displayContainer);
 
             // Listen and respond to ads loaded and error events
-            this.adsLoader.addEventListener(google.ima.AdsManagerLoadedEvent.Type.ADS_MANAGER_LOADED, event => this.onAdsManagerLoaded(event), false);
-            this.adsLoader.addEventListener(google.ima.AdErrorEvent.Type.AD_ERROR, error => this.onAdError(error), false);
+            this.loader.addEventListener(google.ima.AdsManagerLoadedEvent.Type.ADS_MANAGER_LOADED, event => this.onAdsManagerLoaded(event), false);
+            this.loader.addEventListener(google.ima.AdErrorEvent.Type.AD_ERROR, error => this.onAdError(error), false);
 
             // Request video ads
-            const adsRequest = new google.ima.AdsRequest();
-            adsRequest.adTagUrl = this.player.config.ads.tagUrl;
+            const request = new google.ima.AdsRequest();
+            request.adTagUrl = this.player.config.ads.tagUrl;
 
             // Specify the linear and nonlinear slot sizes. This helps the SDK
             // to select the correct creative if multiple are returned
-            adsRequest.linearAdSlotWidth = container.offsetWidth;
-            adsRequest.linearAdSlotHeight = container.offsetHeight;
-            adsRequest.nonLinearAdSlotWidth = container.offsetWidth;
-            adsRequest.nonLinearAdSlotHeight = container.offsetHeight;
+            request.linearAdSlotWidth = container.offsetWidth;
+            request.linearAdSlotHeight = container.offsetHeight;
+            request.nonLinearAdSlotWidth = container.offsetWidth;
+            request.nonLinearAdSlotHeight = container.offsetHeight;
 
             // We only overlay ads as we only support video.
-            adsRequest.forceNonLinearFullSlot = false;
+            request.forceNonLinearFullSlot = false;
 
-            this.adsLoader.requestAds(adsRequest);
+            this.loader.requestAds(request);
 
             this.handleEventListeners('ADS_LOADER_LOADED');
         } catch (e) {
@@ -145,6 +142,25 @@ class Ads {
     }
 
     /**
+     * Update the ad countdown
+     * @param {boolean} start
+     */
+    pollCountdown(start = false) {
+        if (!start) {
+            window.clearInterval(this.countdownTimer);
+            this.elements.container.removeAttribute('data-badge-text');
+        }
+
+        const update = () => {
+            const time = utils.formatTime(this.manager.getRemainingTime());
+            const text = this.player.config.i18n.adCountdown.replace('{countdown}', time);
+            this.elements.container.setAttribute('data-badge-text', text);
+        };
+
+        this.countdownTimer = window.setInterval(update, 500);
+    }
+
+    /**
      * This method is called whenever the ads are ready inside the AdDisplayContainer
      * @param {Event} adsManagerLoadedEvent
      */
@@ -158,33 +174,42 @@ class Ads {
 
         // The SDK is polling currentTime on the contentPlayback. And needs a duration
         // so it can determine when to start the mid- and post-roll
-        this.adsManager = adsManagerLoadedEvent.getAdsManager(this.player, settings);
+        this.manager = adsManagerLoadedEvent.getAdsManager(this.player, settings);
 
         // Get the cue points for any mid-rolls by filtering out the pre- and post-roll
-        this.adsCuePoints = this.adsManager.getCuePoints();
+        this.cuePoints = this.manager.getCuePoints();
 
         // Add advertisement cue's within the time line if available
-        this.adsCuePoints.forEach(cuePoint => {
+        this.cuePoints.forEach(cuePoint => {
             if (cuePoint !== 0 && cuePoint !== -1) {
                 const seekElement = this.player.elements.progress;
+
                 if (seekElement) {
                     const cuePercentage = 100 / this.player.duration * cuePoint;
                     const cue = utils.createElement('span', {
                         class: this.player.config.classNames.cues,
                     });
+
                     cue.style.left = `${cuePercentage.toString()}%`;
                     seekElement.appendChild(cue);
                 }
             }
         });
 
+        // Get skippable state
+        // TODO: Skip button
+        // this.manager.getAdSkippableState();
+
+        // Set volume to match player
+        this.manager.setVolume(this.player.volume);
+
         // Add listeners to the required events
         // Advertisement error events
-        this.adsManager.addEventListener(google.ima.AdErrorEvent.Type.AD_ERROR, error => this.onAdError(error));
+        this.manager.addEventListener(google.ima.AdErrorEvent.Type.AD_ERROR, error => this.onAdError(error));
 
         // Advertisement regular events
         Object.keys(google.ima.AdEvent.Type).forEach(type => {
-            this.adsManager.addEventListener(google.ima.AdEvent.Type[type], event => this.onAdEvent(event));
+            this.manager.addEventListener(google.ima.AdEvent.Type[type], event => this.onAdEvent(event));
         });
 
         // Resolve our adsManager
@@ -194,25 +219,52 @@ class Ads {
     /**
      * This is where all the event handling takes place. Retrieve the ad from the event. Some
      * events (e.g. ALL_ADS_COMPLETED) don't have the ad object associated
+     * https://developers.google.com/interactive-media-ads/docs/sdks/html5/v3/apis#ima.AdEvent.Type
      * @param {Event} event
      */
     onAdEvent(event) {
         const { container } = this.player.elements;
 
-        // Listen for events if debugging
-        this.player.debug.log(`Ads event: ${event.type}`);
-
         // Retrieve the ad from the event. Some events (e.g. ALL_ADS_COMPLETED)
         // don't have ad object associated
         const ad = event.getAd();
 
+        // Proxy event
+        const dispatchEvent = type => {
+            utils.dispatchEvent.call(this.player, this.player.media, `ads${type}`);
+        };
+
         switch (event.type) {
+            case google.ima.AdEvent.Type.LOADED:
+                // This is the first event sent for an ad - it is possible to determine whether the
+                // ad is a video ad or an overlay
+                this.handleEventListeners('LOADED');
+
+                // Bubble event
+                dispatchEvent('loaded');
+
+                // Start countdown
+                this.pollCountdown(true);
+
+                if (!ad.isLinear()) {
+                    // Position AdDisplayContainer correctly for overlay
+                    ad.width = container.offsetWidth;
+                    ad.height = container.offsetHeight;
+                }
+
+                // console.info('Ad type: ' + event.getAd().getAdPodInfo().getPodIndex());
+                // console.info('Ad time: ' + event.getAd().getAdPodInfo().getTimeOffset());
+                break;
+
             case google.ima.AdEvent.Type.ALL_ADS_COMPLETED:
                 // All ads for the current videos are done. We can now request new advertisements
                 // in case the video is re-played
                 this.handleEventListeners('ALL_ADS_COMPLETED');
 
-                // Todo: Example for what happens when a next video in a playlist would be loaded.
+                // Fire event
+                dispatchEvent('allcomplete');
+
+                // TODO: Example for what happens when a next video in a playlist would be loaded.
                 // So here we load a new video when all ads are done.
                 // Then we load new ads within a new adsManager. When the video
                 // Is started - after - the ads are loaded, then we get ads.
@@ -232,7 +284,7 @@ class Ads {
                 // 'https://cdn.plyr.io/static/demo/View_From_A_Blue_Moon_Trailer-HD.fr.vtt', }, ],
                 // };
 
-                // Todo: So there is still this thing where a video should only be allowed to start
+                // TODO: So there is still this thing where a video should only be allowed to start
                 // playing when the IMA SDK is ready or has failed
 
                 this.loadAds();
@@ -243,7 +295,9 @@ class Ads {
                 // for example display a pause button and remaining time. Fired when content should
                 // be paused. This usually happens right before an ad is about to cover the content
                 this.handleEventListeners('CONTENT_PAUSE_REQUESTED');
+                dispatchEvent('contentpause');
                 this.pauseContent();
+
                 break;
 
             case google.ima.AdEvent.Type.CONTENT_RESUME_REQUESTED:
@@ -252,22 +306,31 @@ class Ads {
                 // Fired when content should be resumed. This usually happens when an ad finishes
                 // or collapses
                 this.handleEventListeners('CONTENT_RESUME_REQUESTED');
+                dispatchEvent('contentresume');
                 this.resumeContent();
                 break;
 
-            case google.ima.AdEvent.Type.LOADED:
-                // This is the first event sent for an ad - it is possible to determine whether the
-                // ad is a video ad or an overlay
-                this.handleEventListeners('LOADED');
+            case google.ima.AdEvent.Type.STARTED:
+                dispatchEvent('started');
+                break;
 
-                if (!ad.isLinear()) {
-                    // Position AdDisplayContainer correctly for overlay
-                    ad.width = container.offsetWidth;
-                    ad.height = container.offsetHeight;
-                }
+            case google.ima.AdEvent.Type.MIDPOINT:
+                dispatchEvent('midpoint');
+                break;
 
-                // console.info('Ad type: ' + event.getAd().getAdPodInfo().getPodIndex());
-                // console.info('Ad time: ' + event.getAd().getAdPodInfo().getTimeOffset());
+            case google.ima.AdEvent.Type.COMPLETE:
+                dispatchEvent('complete');
+
+                // End countdown
+                this.pollCountdown();
+                break;
+
+            case google.ima.AdEvent.Type.IMPRESSION:
+                dispatchEvent('impression');
+                break;
+
+            case google.ima.AdEvent.Type.CLICK:
+                dispatchEvent('click');
                 break;
 
             default:
@@ -295,7 +358,7 @@ class Ads {
 
         // Add listeners to the required events
         this.player.on('ended', () => {
-            this.adsLoader.contentComplete();
+            this.loader.contentComplete();
         });
 
         this.player.on('seeking', () => {
@@ -306,17 +369,18 @@ class Ads {
         this.player.on('seeked', () => {
             const seekedTime = this.player.currentTime;
 
-            this.adsCuePoints.forEach((cuePoint, index) => {
+            this.cuePoints.forEach((cuePoint, index) => {
                 if (time < cuePoint && cuePoint < seekedTime) {
-                    this.adsManager.discardAdBreak();
-                    this.adsCuePoints.splice(index, 1);
+                    this.manager.discardAdBreak();
+                    this.cuePoints.splice(index, 1);
                 }
             });
         });
 
         // Listen to the resizing of the window. And resize ad accordingly
+        // TODO: eventually implement ResizeObserver
         window.addEventListener('resize', () => {
-            this.adsManager.resize(container.offsetWidth, container.offsetHeight, google.ima.ViewMode.NORMAL);
+            this.manager.resize(container.offsetWidth, container.offsetHeight, google.ima.ViewMode.NORMAL);
         });
     }
 
@@ -326,23 +390,23 @@ class Ads {
     play() {
         const { container } = this.player.elements;
 
-        if (!this.adsManagerPromise) {
+        if (!this.managerPromise) {
             return;
         }
 
         // Play the requested advertisement whenever the adsManager is ready
-        this.adsManagerPromise.then(() => {
+        this.managerPromise.then(() => {
             // Initialize the container. Must be done via a user action on mobile devices
-            this.adDisplayContainer.initialize();
+            this.elements.displayContainer.initialize();
 
             try {
                 if (!this.initialized) {
                     // Initialize the ads manager. Ad rules playlist will start at this time
-                    this.adsManager.init(container.offsetWidth, container.offsetHeight, google.ima.ViewMode.NORMAL);
+                    this.manager.init(container.offsetWidth, container.offsetHeight, google.ima.ViewMode.NORMAL);
 
                     // Call play to start showing the ad. Single video and overlay ads will
                     // start at this time; the call will be ignored for ad rules
-                    this.adsManager.start();
+                    this.manager.start();
                 }
 
                 this.initialized = true;
@@ -358,10 +422,8 @@ class Ads {
      * Resume our video.
      */
     resumeContent() {
-        this.player.debug.log('Resume video');
-
         // Hide our ad container
-        utils.toggleHidden(this.adsContainer, true);
+        utils.toggleHidden(this.elements.container, true);
 
         // Ad is stopped
         this.playing = false;
@@ -376,10 +438,8 @@ class Ads {
      * Pause our video
      */
     pauseContent() {
-        this.player.debug.log('Pause video');
-
         // Show our ad container.
-        utils.toggleHidden(this.adsContainer, false);
+        utils.toggleHidden(this.elements.container, false);
 
         // Ad is playing.
         this.playing = true;
@@ -395,8 +455,6 @@ class Ads {
      * media-ads/docs/sdks/android/faq#8
      */
     cancel() {
-        this.player.debug.warn('Ad cancelled');
-
         // Pause our video
         this.resumeContent();
 
@@ -412,16 +470,16 @@ class Ads {
      */
     loadAds() {
         // Tell our adsManager to go bye bye
-        this.adsManagerPromise.then(() => {
+        this.managerPromise.then(() => {
             // Destroy our adsManager
-            if (this.adsManager) {
-                this.adsManager.destroy();
+            if (this.manager) {
+                this.manager.destroy();
             }
 
             // Re-set our adsManager promises
-            this.adsManagerPromise = new Promise(resolve => {
+            this.managerPromise = new Promise(resolve => {
                 this.on('ADS_MANAGER_LOADED', () => resolve());
-                this.player.debug.log(this.adsManager);
+                this.player.debug.log(this.manager);
             });
 
             // Make sure we can re-call advertisements
@@ -437,7 +495,7 @@ class Ads {
      * @param {string} event - Event type
      */
     handleEventListeners(event) {
-        if (typeof this.events[event] !== 'undefined') {
+        if (utils.is.function(this.events[event])) {
             this.events[event].call(this);
         }
     }
@@ -458,11 +516,12 @@ class Ads {
      * The advertisement has 12 seconds to get its things together. We stop this timer when the
      * advertisement is playing, or when a user action is required to start, then we clear the
      * timer on ad ready
-     * @param {Number} time
-     * @param {String} from
+     * @param {number} time
+     * @param {string} from
      */
     startSafetyTimer(time, from) {
         this.player.debug.log(`Safety timer invoked from: ${from}`);
+
         this.safetyTimer = window.setTimeout(() => {
             this.cancel();
             this.clearSafetyTimer('startSafetyTimer()');
@@ -471,13 +530,14 @@ class Ads {
 
     /**
      * Clear our safety timer(s)
-     * @param {String} from
+     * @param {string} from
      */
     clearSafetyTimer(from) {
-        if (typeof this.safetyTimer !== 'undefined' && this.safetyTimer !== null) {
+        if (!utils.is.nullOrUndefined(this.safetyTimer)) {
             this.player.debug.log(`Safety timer cleared from: ${from}`);
+
             clearTimeout(this.safetyTimer);
-            this.safetyTimer = undefined;
+            this.safetyTimer = null;
         }
     }
 }