@qooxdoo/framework
Version:
The JS Framework for Coders
133 lines (115 loc) • 3.15 kB
JavaScript
/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2014 1&1 Internet AG, Germany, http://www.1und1.de
License:
MIT: https://opensource.org/licenses/MIT
See the LICENSE file in the project's top-level directory for details.
Authors:
* Daniel Wagner (danielwagner)
************************************************************************ */
/**
* Normalization for the swipe gesture. This gesture is based on <a href="#Pointer">Pointer events</a>
* meaning that it's available on all devices, no matter which input device type is used (e.g. mouse or
* touchscreen).
*
* @require(qx.module.Event)
*
* @group (Event_Normalization)
*/
qx.Bootstrap.define("qx.module.event.Swipe", {
statics: {
/**
* List of event types to be normalized
*/
TYPES: ["swipe"],
BIND_METHODS: [
"getStartTime",
"getDuration",
"getAxis",
"getDirection",
"getVelocity",
"getDistance"
],
/**
* Returns the start time of the performed swipe.
*
* @return {Integer} the start time
*/
getStartTime() {
return this._original.swipe.startTime;
},
/**
* Returns the duration the performed swipe took.
*
* @return {Integer} the duration
*/
getDuration() {
return this._original.swipe.duration;
},
/**
* Returns whether the performed swipe was on the x or y axis.
*
* @return {String} "x"/"y" axis
*/
getAxis() {
return this._original.swipe.axis;
},
/**
* Returns the direction of the performed swipe in reference to the axis.
* y = up / down
* x = left / right
*
* @return {String} the direction
*/
getDirection() {
return this._original.swipe.direction;
},
/**
* Returns the velocity of the performed swipe.
*
* @return {Number} the velocity
*/
getVelocity() {
return this._original.swipe.velocity;
},
/**
* Returns the distance of the performed swipe.
*
* @return {Integer} the distance
*/
getDistance() {
return this._original.swipe.distance;
},
/**
* Manipulates the native event object, adding methods if they're not
* already present
*
* @param event {Event} Native event object
* @param element {Element} DOM element the listener was attached to
* @return {Event} Normalized event object
* @internal
*/
normalize(event, element) {
if (!event) {
return event;
}
// apply mouse event normalizations
var bindMethods = qx.module.event.Swipe.BIND_METHODS;
for (var i = 0, l = bindMethods.length; i < l; i++) {
if (typeof event[bindMethods[i]] != "function") {
event[bindMethods[i]] =
qx.module.event.Swipe[bindMethods[i]].bind(event);
}
}
return event;
}
},
defer(statics) {
qxWeb.$registerEventNormalization(
qx.module.event.Swipe.TYPES,
statics.normalize
);
}
});