fix(FEC-7564): trigger timeupdate in case of live when the playback is paused

src/engines/html5/html5.js

@@ -196,7 +196,7 @@ export default class Html5 extends FakeEventTarget implements IEngine {
       this._eventManager.listen(this._mediaSourceAdapter, CustomEventType.ABR_MODE_CHANGED, (event: FakeEvent) => this.dispatchEvent(event));
       this._eventManager.listen(this._mediaSourceAdapter, CustomEventType.TEXT_CUE_CHANGED, (event: FakeEvent) => this.dispatchEvent(event));
       this._eventManager.listen(this._mediaSourceAdapter, Html5EventType.ERROR, (event: FakeEvent) => this.dispatchEvent(event));
-      this._eventManager.listen(this._mediaSourceAdapter, Html5EventType.DURATION_CHANGE, (event: FakeEvent) => this.dispatchEvent(event));
+      this._eventManager.listen(this._mediaSourceAdapter, Html5EventType.TIME_UPDATE, (event: FakeEvent) => this.dispatchEvent(event));
       this._eventManager.listen(this._mediaSourceAdapter, Html5EventType.PLAYING, (event: FakeEvent) => this.dispatchEvent(event));
     }
   }

src/engines/html5/media-source/adapters/native-adapter.js

@@ -775,7 +775,7 @@ export default class NativeAdapter extends BaseMediaSourceAdapter {
       const liveEdge = this._getLiveEdge();
       if (this._liveEdge !== liveEdge) {
         this._liveEdge = liveEdge;
-        this._trigger(Html5EventType.DURATION_CHANGE, {});
+        this._videoElement.dispatchEvent(new window.Event(Html5EventType.DURATION_CHANGE));
       }
     }, 2000);
   }
@@ -795,7 +795,7 @@ export default class NativeAdapter extends BaseMediaSourceAdapter {
    * @public
    */
   getStartTimeOfDvrWindow(): number {
-    if (this.isLive()) {
+    if (this.isLive() && this._videoElement.seekable.length) {
       return this._videoElement.seekable.start(0);
     } else {
       return 0;

src/engines/html5/media-source/base-media-source-adapter.js

@@ -73,6 +73,7 @@ export default class BaseMediaSourceAdapter extends FakeEventTarget implements I
     this._videoElement = videoElement;
     this._sourceObj = source;
     this._config = config;
+    this._handleLiveTimeUpdate();
   }
 
   /**
@@ -105,10 +106,10 @@ export default class BaseMediaSourceAdapter extends FakeEventTarget implements I
   /**
    * Dispatch an adapter event forward.
    * @param {string} name - The name of the event.
-   * @param {Object} payload - The event payload.
+   * @param {?Object} payload - The event payload.
    * @returns {void}
    */
-  _trigger(name: string, payload: Object): void {
+  _trigger(name: string, payload?: Object): void {
     this.dispatchEvent(new FakeEvent(name, payload));
   }
 
@@ -158,6 +159,20 @@ export default class BaseMediaSourceAdapter extends FakeEventTarget implements I
     return BaseMediaSourceAdapter._throwNotImplementedError('isLive');
   }
 
+  /**
+   * Handling live time update (as is not triggered when video is paused, but the current time changed)
+   * @function _handleLiveTimeUpdate
+   * @returns {void}
+   * @private
+   */
+  _handleLiveTimeUpdate(): void {
+    this._videoElement.addEventListener(Html5EventType.DURATION_CHANGE, () => {
+      if (this.isLive() && this._videoElement.paused) {
+        this._trigger(Html5EventType.TIME_UPDATE);
+      }
+    });
+  }
+
   get src(): string {
     return BaseMediaSourceAdapter._throwNotImplementedError('get src');
   }

test/src/engines/html5/media-source/adapters/native-adapter.spec.js

@@ -708,7 +708,35 @@ describe('NativeAdapter: _handleLiveDurationChange', () => {
   it('should trigger durationchange for live', (done) => {
     nativeInstance = NativeAdapter.createAdapter(video, sourcesConfig.Live.hls[0], {sources: {}});
     nativeInstance.load().then(() => {
-      nativeInstance.addEventListener('durationchange', () => {
+      nativeInstance._videoElement.addEventListener('durationchange', () => {
+        done();
+      });
+    }).catch(() => {
+      done();
+    });
+  });
+});
+
+describe('NativeAdapter: _handleLiveTimeUpdate', () => {
+  let video, nativeInstance;
+
+  beforeEach(() => {
+    video = document.createElement("video");
+  });
+
+  afterEach(() => {
+    nativeInstance.destroy();
+    nativeInstance = null;
+  });
+
+  after(() => {
+    removeVideoElementsFromTestPage();
+  });
+
+  it('should trigger timeupdate for live when paused', (done) => {
+    nativeInstance = NativeAdapter.createAdapter(video, sourcesConfig.Live.hls[0], {sources: {}});
+    nativeInstance.load().then(() => {
+      nativeInstance.addEventListener('timeupdate', () => {
         done();
       });
     }).catch(() => {