Revert "Revert "Merge branch 'master' into temporalmedia-mehek""

This reverts commit 3415f672292bb349c7d9ec66564933a746ee3b25.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/client/views/pdf/PDFViewer.tsx b/src/client/views/pdf/PDFViewer.tsx
index f706be6c6..0ded1bb3c 100644
--- a/src/client/views/pdf/PDFViewer.tsx
+++ b/src/client/views/pdf/PDFViewer.tsx
@@ -274,6 +274,8 @@ export class PDFViewer extends React.Component<IViewerProps> {
         }
     }
 
+    @observable private _scrollTimer: any;
+
     onScroll = (e: React.UIEvent<HTMLElement>) => {
         if (this._mainCont.current && !this._forcedScroll) {
             this._ignoreScroll = true; // the pdf scrolled, so we need to tell the Doc to scroll but we don't want the doc to then try to set the PDF scroll pos (which would interfere with the smooth scroll animation)
@@ -281,6 +283,11 @@ export class PDFViewer extends React.Component<IViewerProps> {
                 this.props.layoutDoc._scrollTop = this._mainCont.current.scrollTop;
             }
             this._ignoreScroll = false;
+            if (this._scrollTimer) clearTimeout(this._scrollTimer); // wait until a scrolling pause, then create an anchor to audio
+            this._scrollTimer = setTimeout(() => {
+                DocUtils.MakeLinkToActiveAudio(() => this.props.DocumentView?.().ComponentView?.getAnchor!()!, false);
+                this._scrollTimer = undefined;
+            }, 200);
         }
     }