event-touch.js revision dcde9f9fdb7cdb40d391c49e82df809afef42c01
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * Adds touch event facade normalization properties (touches, changedTouches, targetTouches etc.) to the DOM event facade
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * @module event-touch
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * Adds touch event facade normalization properties to the DOM event facade
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * @method _touch
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * @for DOMEventFacade
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * @param ev {Event} the DOM event
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * @param currentTarget {HTMLElement} the element the listener was attached to
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * @param wrapper {Event.Custom} the custom event wrapper for this DOM event
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen DesaiY.DOMEventFacade.prototype._touch = function(e, currentTarget, wrapper) {
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * Array of individual touch events for touch points that are still in
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * contact with the touch surface.
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * @property touches
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * @type {DOMEventFacade[]}
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai for (i = 0, l = e.touches.length; i < l; ++i) {
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai touchCache[Y.stamp(et)] = this.touches[i] = new Y.DOMEventFacade(et, currentTarget, wrapper);
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * Array of individual touch events still in contact with the touch
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * surface and whose `touchstart` event occurred inside the same taregt
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * element as the current target element.
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * @property targetTouches
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai * @type {DOMEventFacade[]}
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai for (i = 0, l = e.targetTouches.length; i < l; ++i) {
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai etCached = touchCache && touchCache[Y.stamp(et, true)];
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai this.targetTouches[i] = etCached || new Y.DOMEventFacade(et, currentTarget, wrapper);
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai An array of event-specific touch events.
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai For `touchstart`, the touch points that became active with the current
829545a6bc03a4ec90be779dfdba3815f6454311Satyen Desai For `touchmove`, the touch points that have changed since the last
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai For `touchend`, the touch points that have been removed from the touch
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai @property changedTouches
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai @type {DOMEventFacade[]}
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai for (i = 0, l = e.changedTouches.length; i < l; ++i) {
02116a8536c9212761e6bf4c29521c9e8af4988eSatyen Desai etCached = touchCache && touchCache[Y.stamp(et, true)];
if (SCALE in e) {
if (ROTATION in e) {
if (IDENTIFIER in e) {