# HG changeset patch
# User Nicholas Jillings <n.g.r.jillings@se14.qmul.ac.uk>
# Date 1509486377 0
# Node ID ffd7042c64b2c00c0cd5a0d84417e21a45aaab64
# Parent  aae564b49b5a055ce9c5ef17a2ff94684ad8423b
WIP for #122

diff -r aae564b49b5a -r ffd7042c64b2 interfaces/ape.js
--- a/interfaces/ape.js	Tue Oct 31 17:20:49 2017 +0000
+++ b/interfaces/ape.js	Tue Oct 31 21:46:17 2017 +0000
@@ -577,7 +577,14 @@
                 move = Math.min(w, move);
                 UI.selected.value = (move / w);
             } else if (event.type == "touchmove") {
-                var move = event.originalEvent.targetTouches[0].clientX - 6;
+                var move;
+                if (event.targetTouches) {
+                    move = event.targetTouches[0].clientX - 6;
+                } else if (event.originalEvent.targetTouches) {
+                    move = event.originalEvent.targetTouches[0].clientX - 6;
+                } else {
+                    return;
+                }
                 var w = $(event.currentTarget).width();
                 move = Math.max(50, move);
                 move = Math.min(w, move);