Add enabled

Author: marcandre

README.md

@@ -15,3 +15,7 @@ How to use
   .on('swiperight', function(){ /*...*/ })
   .on('swipeup',    function(){ /*...*/ })
   .on('swipedown',  function(){ /*...*/ });
+
+This won't have any effect on non-touch devices. You can rely on:
+
+  $.fn.detectSwipe.enabled // true on touch devices, false otherwise

jquery.detect_swipe.js

@@ -47,12 +47,12 @@
           this.addEventListener('touchmove', onTouchMove, false);
         }
       }
-      if ('ontouchstart' in document.documentElement) {
+      if ($.fn.detectSwipe.enabled) {
         this.addEventListener('touchstart', onTouchStart, false);
       }
     });
 
     return this;
   };
-
+  $.fn.detectSwipe.enabled = 'ontouchstart' in document.documentElement;
 })(jQuery);