updated: use more defensive code #70

GianlucaGuarini · Jan 6, 2020 · 5917fc9 · 5917fc9
1 parent 41adb32
commit 5917fc9
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/Tocca.js b/Tocca.js
@@ -68,12 +68,13 @@
       }
     },
     getPointerEvent = function(event) {
+      const hasTargetTouches = Boolean(event.targetTouches && event.targetTouches.length)
       switch (true) {
-      case event.target.touches:
+      case Boolean(event.target.touches):
         return event.target.touches[0]
-      case event.targetTouches && typeof event.targetTouches[0].pageX !== 'undefined':
+      case hasTargetTouches && typeof event.targetTouches[0].pageX !== 'undefined':
         return event.targetTouches[0]
-      case event.targetTouches && event.targetTouches[0].touches:
+      case hasTargetTouches && Boolean(event.targetTouches[0].touches):
         return event.targetTouches[0].touches[0]
       default:
         return event