event-touch.js revision 76ca635d61eb3f9fb7c9d788a44fa8b1690aa138
YUI.add('event-touch', function(Y) {
/**
* Adds touch event facade normalization properties (touches, changedTouches, targetTouches etc.) to the DOM event facade
*
* @module event-touch
*/
var SCALE = "scale",
ROTATION = "rotation",
IDENTIFIER = "identifier";
/**
* Adds touch event facade normalization properties to the DOM event facade
*
* @method _touch
* @for DOMEventFacade
* @private
* @param ev {Event} the DOM event
* @param currentTarget {HTMLElement} the element the listener was attached to
* @param wrapper {Event.Custom} the custom event wrapper for this DOM event
*/
Y.DOMEventFacade.prototype._touch = function(e, currentTarget, wrapper) {
var i,l, etCached, et,touchCache;
if (e.touches) {
this.touches = [];
touchCache = {};
for (i = 0, l = e.touches.length; i < l; ++i) {
et = e.touches[i];
touchCache[Y.stamp(et)] = this.touches[i] = new Y.DOMEventFacade(et, currentTarget, wrapper);
}
}
if (e.targetTouches) {
this.targetTouches = [];
for (i = 0, l = e.targetTouches.length; i < l; ++i) {
et = e.targetTouches[i];
etCached = touchCache && touchCache[Y.stamp(et, true)];
this.targetTouches[i] = etCached || new Y.DOMEventFacade(et, currentTarget, wrapper);
}
}
if (e.changedTouches) {
this.changedTouches = [];
for (i = 0, l = e.changedTouches.length; i < l; ++i) {
et = e.changedTouches[i];
etCached = touchCache && touchCache[Y.stamp(et, true)];
this.changedTouches[i] = etCached || new Y.DOMEventFacade(et, currentTarget, wrapper);
}
}
if (SCALE in e) {
this[SCALE] = e[SCALE];
}
if (ROTATION in e) {
this[ROTATION] = e[ROTATION];
}
if (IDENTIFIER in e) {
this[IDENTIFIER] = e[IDENTIFIER];
}
};
if (Y.Node.DOM_EVENTS) {
Y.mix(Y.Node.DOM_EVENTS, {
touchstart:1,
touchmove:1,
touchend:1,
touchcancel:1,
gesturestart:1,
gesturechange:1,
gestureend:1
});
}
}, '@VERSION@' ,{requires:['node-base']});