Remap Safari gesture events to wheel events - #5492

(still needs some more testing)

modules/ui/init.js

@@ -286,12 +286,14 @@ export function uiInit(context) {
         window.onbeforeunload = function() {
             return context.save();
         };
-
         window.onunload = function() {
             context.history().unlock();
         };
 
         d3_select(window)
+            .on('gesturestart.editor', eventCancel)
+            .on('gesturechange.editor', eventCancel)
+            .on('gestureend.editor', eventCancel)
             .on('resize.editor', ui.onResize);
 
 
@@ -349,6 +351,10 @@ export function uiInit(context) {
                 context.pan(d, 100);
             };
         }
+
+        function eventCancel() {
+            d3_event.preventDefault();
+        }
     }