nakarte

commit 4e4e1173bac509cd494e32d887f2a773dda8c945
parent 9b27339b5917eb8135f77b4a882b7e75108c924b
Author: Sergej Orlov <wladimirych@gmail.com>
Date:   Sat, 21 Jan 2023 16:47:18 +0100

Fix map zooming 2 levels on each mouse wheel "tick"

This fixes issue on Linux in Chrome and Firefox.

Diffstat:
M
src/lib/leaflet.fixes/index.js
 | 
10
++++++++++

1 file changed, 10 insertions(+), 0 deletions(-)
diff --git a/src/lib/leaflet.fixes/index.js b/src/lib/leaflet.fixes/index.js
@@ -100,6 +100,15 @@ function addTooltipDelay() {
     };
 }
 
+// Should become obsolete when https://github.com/Leaflet/Leaflet/issues/4696 is done
+function fixDoubleZoomOnMouseWheel() {
+    const origGetWheelDelta = L.DomEvent.getWheelDelta;
+    L.DomEvent.getWheelDelta = function(e) {
+        const delta = origGetWheelDelta(e);
+        return Math.sign(delta) * Math.min(Math.abs(delta), 60);
+    };
+}
+
 function fixAll() {
     fixPanAnimationBug();
     fixTouchDetection();
@@ -108,6 +117,7 @@ function fixAll() {
     fixVectorMarkerWorldJump();
     allowControlHorizontalStacking();
     addTooltipDelay();
+    fixDoubleZoomOnMouseWheel();
 }
 
 export {fixAll};