fix horizontal scroll via shift+wheel on mac (#1528)

2020-05-02 22:15:28 +02:00 · 2020-05-02 22:15:28 +02:00 · 4aa1784ba3
commit 4aa1784ba3
parent 32e56aba3e
1 changed files with 2 additions and 1 deletions
--- a/src/components/App.tsx
+++ b/src/components/App.tsx
@ -2570,7 +2570,8 @@ class App extends React.Component<any, AppState> {
    // scroll horizontally when shift pressed
    if (event.shiftKey) {
      this.setState(({ zoom, scrollX }) => ({
-        scrollX: normalizeScroll(scrollX - deltaY / zoom),
+        // on Mac, shift+wheel tends to result in deltaX
+        scrollX: normalizeScroll(scrollX - (deltaY || deltaX) / zoom),
      }));
      return;
    }