fixed undo for opening/closing sidebar for pdf/web/text. fixed lightboxview for pdf's with smaller heights.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/client/views/nodes/DocumentView.tsx b/src/client/views/nodes/DocumentView.tsx
index dea718a0d..3a8552325 100644
--- a/src/client/views/nodes/DocumentView.tsx
+++ b/src/client/views/nodes/DocumentView.tsx
@@ -1492,7 +1492,9 @@ export class DocumentView extends React.Component<DocumentViewProps> {
         return this.effectiveNativeWidth ? (this.props.PanelWidth() - this.effectiveNativeWidth * this.nativeScaling) / 2 : 0;
     }
     @computed get Yshift() {
-        return this.effectiveNativeWidth && this.effectiveNativeHeight && Math.abs(this.Xshift) < 0.001 && !this.layoutDoc.nativeHeightUnfrozen ? Math.max(0, (this.props.PanelHeight() - this.effectiveNativeHeight * this.nativeScaling) / 2) : 0;
+        return this.effectiveNativeWidth && this.effectiveNativeHeight && Math.abs(this.Xshift) < 0.001 && (!this.layoutDoc.nativeHeightUnfrozen || (!this.fitWidth && this.effectiveNativeHeight * this.nativeScaling <= this.props.PanelHeight()))
+            ? Math.max(0, (this.props.PanelHeight() - this.effectiveNativeHeight * this.nativeScaling) / 2)
+            : 0;
     }
     @computed get centeringX() {
         return this.props.dontCenter?.includes('x') ? 0 : this.Xshift;