javascript - Handling touch-based events -


i have touch events:

if( 'ontouchstart' in document.body) {     usevkeys = true;     canvas.addeventlistener("touchstart",function(e) {evt.call(this,e);},false);     canvas.addeventlistener("touchend",function(e) {evt.call(this,e);},false);     canvas.addeventlistener("touchmove",function(e) {evt.call(this,e);},false); } else {     canvas.addeventlistener("mousemove",function(e) {evt.call(this,e);},false);     canvas.addeventlistener("click",function(e) {evt.call(this,e);},false); }

this works fine on laptop, , on phone. however, have wonder, how react in environment has both touchscreen , normal mouse? mouse trigger touch events, phone triggers mousemove events?

what can make sure works?

a touchstart triggers click event touchend has fired (-> if hasn't been canceled). should remove else clause , should fine!

microsoft went different way touch events in ie10 harmonize pointer-devices pointer , gesture events can check if has been fired mouse, pen or finger - or perhaps kinect-style device in future.


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