Documentation for touchscreen events in Javascript

Question

Where can I find documentation or a reference for touchscreen events in Javascript, ex. \"touchstart\".

I found this useful link http://ross.posterous.com/2008/08/19/ip

Answer 1

I used this site when developing a mobile web app http://www.sitepen.com/blog/2008/07/10/touching-and-gesturing-on-the-iphone/

But with research I have gotten a decent list.

• touchstart
  • Action: fires when the screen is touched (will fire for multi-point touches as well)
  • Equivalent: mousedown
• touchend
  • Action: fires when a finger is lifted from a screen (is really finiky with single point touch
  • Equivalent: mouseup
• touchmove
  • Action: fires when one or more fingers move on the screen
  • Equivalent: mousemove
• touchcancel
  • Action: when a touch event is canceled by the system
  • Equivalent: none that I'm aware

Other touch devices map the touch events to mouse events. Others ignore touch events.

To a Google API discussion - "Apart from mobile safari, there isn't a way to access touch events on desktops that have a touch screen."