Fix automatic zoom under spread mode (#12699)

mozilla · Dec 6, 2020 · f063cee · f063cee
1 parent d784af3
commit f063cee
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/web/base_viewer.js b/web/base_viewer.js
@@ -735,6 +735,11 @@ class BaseViewer {
  if (!currentPage) {
  return;
  }
+ const factor =
+ this.spreadMode === SpreadMode.NONE || this._isScrollModeHorizontal
+ ? 1
+ : 2;
+
  const noPadding = this.isInPresentationMode || this.removePageBorders;
  let hPadding = noPadding ? 0 : SCROLLBAR_PADDING;
  let vPadding = noPadding ? 0 : VERTICAL_PADDING;
@@ -743,8 +748,9 @@ class BaseViewer {
  [hPadding, vPadding] = [vPadding, hPadding]; // Swap the padding values.
  }
  const pageWidthScale =
- ((this.container.clientWidth - hPadding) / currentPage.width) *
- currentPage.scale;
+ (((this.container.clientWidth - hPadding) / currentPage.width) *
+ currentPage.scale) /
+ factor;
  const pageHeightScale =
  ((this.container.clientHeight - vPadding) / currentPage.height) *
  currentPage.scale;