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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview
* Simple utility functions for Chromoting.
*/
/**
* @param {string} classes A space-separated list of classes.
* @param {string} cls The class to check for.
* @return {boolean} True if |cls| is found within |classes|.
*/
function hasClass(classes, cls) {
return classes.match(new RegExp('(\\s|^)' + cls + '(\\s|$)')) != null;
}
/**
* @param {Element} element The element to which to add the class.
* @param {string} cls The new class.
* @return {void} Nothing.
*/
function addClass(element, cls) {
if (!hasClass(element.className, cls)) {
var padded = element.className == '' ? '' : element.className + ' ';
element.className = padded + cls;
}
}
/**
* @param {Element} element The element from which to remove the class.
* @param {string} cls The new class.
* @return {void} Nothing.
*/
function removeClass(element, cls) {
element.className =
element.className.replace(new RegExp('\\b' + cls + '\\b', 'g'), '')
.replace(' ', ' ');
}
/**
* @return {Object.<string, string>} The URL parameters.
*/
function getUrlParameters() {
var result = {};
var parts = window.location.search.substring(1).split('&');
for (var i = 0; i < parts.length; i++) {
var pair = parts[i].split('=');
result[pair[0]] = decodeURIComponent(pair[1]);
}
return result;
}
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