| /* |
| * noVNC: HTML5 VNC client |
| * Copyright (C) 2012 Joel Martin |
| * Copyright (C) 2013 NTT corp. |
| * Licensed under MPL 2.0 (see LICENSE.txt) |
| * |
| * See README.md for usage and integration instructions. |
| */ |
| |
| /*jslint bitwise: false, white: false, browser: true, devel: true */ |
| /*global Util, window, document */ |
| |
| // Globals defined here |
| var WebUtil = {}, $D; |
| |
| /* |
| * Simple DOM selector by ID |
| */ |
| if (!window.$D) { |
| window.$D = function (id) { |
| if (document.getElementById) { |
| return document.getElementById(id); |
| } else if (document.all) { |
| return document.all[id]; |
| } else if (document.layers) { |
| return document.layers[id]; |
| } |
| return undefined; |
| }; |
| } |
| |
| |
| /* |
| * ------------------------------------------------------ |
| * Namespaced in WebUtil |
| * ------------------------------------------------------ |
| */ |
| |
| // init log level reading the logging HTTP param |
| WebUtil.init_logging = function (level) { |
| "use strict"; |
| if (typeof level !== "undefined") { |
| Util._log_level = level; |
| } else { |
| var param = document.location.href.match(/logging=([A-Za-z0-9\._\-]*)/); |
| Util._log_level = (param || ['', Util._log_level])[1]; |
| } |
| Util.init_logging(); |
| }; |
| |
| |
| WebUtil.dirObj = function (obj, depth, parent) { |
| "use strict"; |
| if (! depth) { depth = 2; } |
| if (! parent) { parent = ""; } |
| |
| // Print the properties of the passed-in object |
| var msg = ""; |
| for (var i in obj) { |
| if ((depth > 1) && (typeof obj[i] === "object")) { |
| // Recurse attributes that are objects |
| msg += WebUtil.dirObj(obj[i], depth - 1, parent + "." + i); |
| } else { |
| //val = new String(obj[i]).replace("\n", " "); |
| var val = ""; |
| if (typeof(obj[i]) === "undefined") { |
| val = "undefined"; |
| } else { |
| val = obj[i].toString().replace("\n", " "); |
| } |
| if (val.length > 30) { |
| val = val.substr(0, 30) + "..."; |
| } |
| msg += parent + "." + i + ": " + val + "\n"; |
| } |
| } |
| return msg; |
| }; |
| |
| // Read a query string variable |
| WebUtil.getQueryVar = function (name, defVal) { |
| "use strict"; |
| var re = new RegExp('.*[?&]' + name + '=([^&#]*)'), |
| match = document.location.href.match(re); |
| if (typeof defVal === 'undefined') { defVal = null; } |
| if (match) { |
| return decodeURIComponent(match[1]); |
| } else { |
| return defVal; |
| } |
| }; |
| |
| |
| /* |
| * Cookie handling. Dervied from: http://www.quirksmode.org/js/cookies.html |
| */ |
| |
| // No days means only for this browser session |
| WebUtil.createCookie = function (name, value, days) { |
| "use strict"; |
| var date, expires; |
| if (days) { |
| date = new Date(); |
| date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000)); |
| expires = "; expires=" + date.toGMTString(); |
| } else { |
| expires = ""; |
| } |
| |
| var secure; |
| if (document.location.protocol === "https:") { |
| secure = "; secure"; |
| } else { |
| secure = ""; |
| } |
| document.cookie = name + "=" + value + expires + "; path=/" + secure; |
| }; |
| |
| WebUtil.readCookie = function (name, defaultValue) { |
| "use strict"; |
| var nameEQ = name + "=", |
| ca = document.cookie.split(';'); |
| |
| for (var i = 0; i < ca.length; i += 1) { |
| var c = ca[i]; |
| while (c.charAt(0) === ' ') { c = c.substring(1, c.length); } |
| if (c.indexOf(nameEQ) === 0) { return c.substring(nameEQ.length, c.length); } |
| } |
| return (typeof defaultValue !== 'undefined') ? defaultValue : null; |
| }; |
| |
| WebUtil.eraseCookie = function (name) { |
| "use strict"; |
| WebUtil.createCookie(name, "", -1); |
| }; |
| |
| /* |
| * Setting handling. |
| */ |
| |
| WebUtil.initSettings = function (callback /*, ...callbackArgs */) { |
| "use strict"; |
| var callbackArgs = Array.prototype.slice.call(arguments, 1); |
| if (window.chrome && window.chrome.storage) { |
| window.chrome.storage.sync.get(function (cfg) { |
| WebUtil.settings = cfg; |
| console.log(WebUtil.settings); |
| if (callback) { |
| callback.apply(this, callbackArgs); |
| } |
| }); |
| } else { |
| // No-op |
| if (callback) { |
| callback.apply(this, callbackArgs); |
| } |
| } |
| }; |
| |
| // No days means only for this browser session |
| WebUtil.writeSetting = function (name, value) { |
| "use strict"; |
| if (window.chrome && window.chrome.storage) { |
| //console.log("writeSetting:", name, value); |
| if (WebUtil.settings[name] !== value) { |
| WebUtil.settings[name] = value; |
| window.chrome.storage.sync.set(WebUtil.settings); |
| } |
| } else { |
| localStorage.setItem(name, value); |
| } |
| }; |
| |
| WebUtil.readSetting = function (name, defaultValue) { |
| "use strict"; |
| var value; |
| if (window.chrome && window.chrome.storage) { |
| value = WebUtil.settings[name]; |
| } else { |
| value = localStorage.getItem(name); |
| } |
| if (typeof value === "undefined") { |
| value = null; |
| } |
| if (value === null && typeof defaultValue !== undefined) { |
| return defaultValue; |
| } else { |
| return value; |
| } |
| }; |
| |
| WebUtil.eraseSetting = function (name) { |
| "use strict"; |
| if (window.chrome && window.chrome.storage) { |
| window.chrome.storage.sync.remove(name); |
| delete WebUtil.settings[name]; |
| } else { |
| localStorage.removeItem(name); |
| } |
| }; |
| |
| /* |
| * Alternate stylesheet selection |
| */ |
| WebUtil.getStylesheets = function () { |
| "use strict"; |
| var links = document.getElementsByTagName("link"); |
| var sheets = []; |
| |
| for (var i = 0; i < links.length; i += 1) { |
| if (links[i].title && |
| links[i].rel.toUpperCase().indexOf("STYLESHEET") > -1) { |
| sheets.push(links[i]); |
| } |
| } |
| return sheets; |
| }; |
| |
| // No sheet means try and use value from cookie, null sheet used to |
| // clear all alternates. |
| WebUtil.selectStylesheet = function (sheet) { |
| "use strict"; |
| if (typeof sheet === 'undefined') { |
| sheet = 'default'; |
| } |
| |
| var sheets = WebUtil.getStylesheets(); |
| for (var i = 0; i < sheets.length; i += 1) { |
| var link = sheets[i]; |
| if (link.title === sheet) { |
| Util.Debug("Using stylesheet " + sheet); |
| link.disabled = false; |
| } else { |
| //Util.Debug("Skipping stylesheet " + link.title); |
| link.disabled = true; |
| } |
| } |
| return sheet; |
| }; |