clicks/transforms/touchlist.js

Browser click streams

/*
 * Copyright (c) 2012 VMware, Inc. All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

define(function (require) {
	"use strict";

	var transforms, undef;

	transforms = require('./_registry');

	function touchTransform(touch) {
		return {
			identifier: touch.identifier,
			target: transforms.lookup('node')(touch.target),
			screenX: touch.screenX,
			screenY: touch.screenY,
			clientX: touch.clientX,
			clientY: touch.clientY,
			pageX: touch.pageX,
			pageY: touch.pageY
		};
	}

	/**
	 * Transforms TouchLists and the containing Touch items
	 *
	 * @param list the TouchList
	 * @return serialization friendly array of touch events
	 */
	function touchlistTransform(list) {
		var i, safe;

		safe = [];
		for (i = 0; i < list.length; i += 1) {
			safe[i] = touchTransform(list.item(i));
		}

		return safe;
	}

	return touchlistTransform;

});