fix(Ads): Fix overlay interstitial when the seeked is outside of the current window (#8288)

Author: avelad

lib/ads/interstitial_ad_manager.js

@@ -988,6 +988,18 @@ shaka.ads.InterstitialAdManager = class {
     } else if (interstitial.endTime) {
       this.playoutLimitTimer_.tickEvery(/* seconds= */ 0.025);
     }
+    this.adEventManager_.listen(this.baseVideo_, 'seeked', () => {
+      const currentTime = this.baseVideo_.currentTime;
+      if (currentTime < interstitial.startTime ||
+          (interstitial.endTime && currentTime > interstitial.endTime)) {
+        if (this.playoutLimitTimer_) {
+          this.playoutLimitTimer_.stop();
+        }
+        this.onEvent_(
+            new shaka.util.FakeEvent(shaka.ads.Utils.AD_SKIPPED));
+        basicTask();
+      }
+    });
   }
 
 
@@ -1287,6 +1299,13 @@ shaka.ads.InterstitialAdManager = class {
             this.video_.currentTime = newPosition;
           }
         });
+        this.adEventManager_.listen(this.baseVideo_, 'seeked', () => {
+          const currentTime = this.baseVideo_.currentTime;
+          if (currentTime < interstitial.startTime ||
+              (interstitial.endTime && currentTime > interstitial.endTime)) {
+            this.lastOnSkip_();
+          }
+        });
       }
     } catch (e) {
       if (!this.playingAd_) {