Ads plugin fixes to allow multiple VAST requests

src/js/plugins/ads.js

@@ -172,17 +172,6 @@ class Ads {
         // We assume the adContainer is the video container of the plyr element that will house the ads
         this.elements.displayContainer = new google.ima.AdDisplayContainer(this.elements.container, this.player.media);
 
-        // Request video ads to be pre-loaded
-        this.requestAds();
-    }
-
-    /**
-     * Request advertisements
-     */
-    requestAds() {
-        const { container } = this.player.elements;
-
-        try {
         // Create ads loader
         this.loader = new google.ima.AdsLoader(this.elements.displayContainer);
 
@@ -194,6 +183,17 @@ class Ads {
         );
         this.loader.addEventListener(google.ima.AdErrorEvent.Type.AD_ERROR, error => this.onAdError(error), false);
 
+        // Request video ads to be pre-loaded
+        this.requestAds();
+    }
+
+    /**
+     * Request advertisements
+     */
+    requestAds() {
+        const { container } = this.player.elements;
+
+        try {
             // Request video ads
             const request = new google.ima.AdsRequest();
             request.adTagUrl = this.tagUrl;
@@ -369,7 +369,14 @@ class Ads {
                 // 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
 
+                if (player.ended){
 				    this.loadAds();
+			    }
+			    else
+			    {
+                    // The SDK won't allow new ads to be called without receiving a contentComplete()
+				    this.loader.contentComplete();
+			    }
 
                 break;
 
@@ -563,6 +570,8 @@ class Ads {
                     this.on('loaded', resolve);
                     this.player.debug.log(this.manager);
                 });
+                // Now that the manager has been destroyed set it to also be un-initialized
+                this.initialized = false;
 
                 // Now request some new advertisements
                 this.requestAds();