big changes to make link following use the same code as pinning docs for trails.

1 files changed, 8 insertions, 3 deletions

diff --git a/src/client/views/pdf/PDFViewer.tsx b/src/client/views/pdf/PDFViewer.tsx
index 6ff87ef9f..5a5c63c3d 100644
--- a/src/client/views/pdf/PDFViewer.tsx
+++ b/src/client/views/pdf/PDFViewer.tsx
@@ -166,12 +166,12 @@ export class PDFViewer extends React.Component<IViewerProps> {
 
     // scrolls to focus on a nested annotation document.  if this is part a link preview then it will jump to the scroll location,
     // otherwise it will scroll smoothly.
-    scrollFocus = (doc: Doc, smooth: boolean) => {
+    scrollFocus = (doc: Doc, scrollTop: number, smooth: boolean) => {
         const mainCont = this._mainCont.current;
         let focusSpeed: Opt<number>;
         if (doc !== this.props.rootDoc && mainCont) {
             const windowHeight = this.props.PanelHeight() / (this.props.NativeDimScaling?.() || 1);
-            const scrollTo = doc.unrendered ? NumCast(doc.y) : Utils.scrollIntoView(NumCast(doc.y), doc[HeightSym](), NumCast(this.props.layoutDoc._scrollTop), windowHeight, 0.1 * windowHeight, NumCast(this.props.Document.scrollHeight));
+            const scrollTo = doc.unrendered ? scrollTop : Utils.scrollIntoView(scrollTop, doc[HeightSym](), NumCast(this.props.layoutDoc._scrollTop), windowHeight, 0.1 * windowHeight, NumCast(this.props.Document.scrollHeight));
             if (scrollTo !== undefined && scrollTo !== this.props.layoutDoc._scrollTop) {
                 if (!this._pdfViewer) this._initialScroll = scrollTo;
                 else if (smooth) smoothScroll((focusSpeed = NumCast(doc.focusSpeed, 500)), mainCont, scrollTo);
@@ -203,6 +203,11 @@ export class PDFViewer extends React.Component<IViewerProps> {
         }
         document.removeEventListener('pagesinit', this.pagesinit);
         var quickScroll: string | undefined = this._initialScroll ? this._initialScroll.toString() : '';
+        this._disposers.scale = reaction(
+            () => NumCast(this.props.layoutDoc._viewScale, 1),
+            scale => (this._pdfViewer.currentScaleValue = scale),
+            { fireImmediately: true }
+        );
         this._disposers.scroll = reaction(
             () => Math.abs(NumCast(this.props.Document._scrollTop)),
             pos => {
@@ -290,7 +295,7 @@ export class PDFViewer extends React.Component<IViewerProps> {
     @action
     scrollToAnnotation = (scrollToAnnotation: Doc) => {
         if (scrollToAnnotation) {
-            this.scrollFocus(scrollToAnnotation, true);
+            this.scrollFocus(scrollToAnnotation, NumCast(scrollToAnnotation.y), true);
             Doc.linkFollowHighlight(scrollToAnnotation);
         }
     };