more fixes to sidebar annotations of pdfs to improve link following.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
index 2f246e74f..ac3777aa6 100644
--- a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
@@ -1229,6 +1229,8 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
         const cx = NumCast(this.layoutDoc._panX) + (this.props.isAnnotationOverlay ? pw / 2 : 0);
         const cy = NumCast(this.layoutDoc._panY) + (this.props.isAnnotationOverlay ? ph / 2 : 0);
         const screen = { left: cx - pw / 2, right: cx + pw / 2, top: cy - ph / 2, bot: cy + ph / 2 };
+        const maxYShift = Math.max(0, screen.bot - screen.top - (bounds.bot - bounds.top));
+        const phborder = bounds.top < screen.top || bounds.bot > screen.bot ? Math.min(ph / 10, maxYShift / 2) : 0;
         if (screen.right - screen.left < bounds.right - bounds.left || screen.bot - screen.top < bounds.bot - bounds.top) {
             return {
                 panX: (bounds.left + bounds.right) / 2,
@@ -1238,7 +1240,7 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
         }
         return {
             panX: (this.props.isAnnotationOverlay ? NumCast(this.layoutDoc._panX) : cx) + Math.min(0, bounds.left - pw / 10 - screen.left) + Math.max(0, bounds.right + pw / 10 - screen.right),
-            panY: (this.props.isAnnotationOverlay ? NumCast(this.layoutDoc._panY) : cy) + Math.min(0, bounds.top - ph / 10 - screen.top) + Math.max(0, bounds.bot + ph / 10 - screen.bot),
+            panY: (this.props.isAnnotationOverlay ? NumCast(this.layoutDoc._panY) : cy) + Math.min(0, bounds.top - phborder - screen.top) + Math.max(0, bounds.bot + phborder - screen.bot),
         };
     };