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-rw-r--r--webclients/novnc/include/util.js656
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diff --git a/webclients/novnc/include/util.js b/webclients/novnc/include/util.js
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-/*
- * noVNC: HTML5 VNC client
- * Copyright (C) 2012 Joel Martin
- * Licensed under MPL 2.0 (see LICENSE.txt)
- *
- * See README.md for usage and integration instructions.
- */
-
-/* jshint white: false, nonstandard: true */
-/*global window, console, document, navigator, ActiveXObject, INCLUDE_URI */
-
-// Globals defined here
-var Util = {};
-
-
-/*
- * Make arrays quack
- */
-
-var addFunc = function (cl, name, func) {
- if (!cl.prototype[name]) {
- Object.defineProperty(cl.prototype, name, { enumerable: false, value: func });
- }
-};
-
-addFunc(Array, 'push8', function (num) {
- "use strict";
- this.push(num & 0xFF);
-});
-
-addFunc(Array, 'push16', function (num) {
- "use strict";
- this.push((num >> 8) & 0xFF,
- num & 0xFF);
-});
-
-addFunc(Array, 'push32', function (num) {
- "use strict";
- this.push((num >> 24) & 0xFF,
- (num >> 16) & 0xFF,
- (num >> 8) & 0xFF,
- num & 0xFF);
-});
-
-// IE does not support map (even in IE9)
-//This prototype is provided by the Mozilla foundation and
-//is distributed under the MIT license.
-//http://www.ibiblio.org/pub/Linux/LICENSES/mit.license
-addFunc(Array, 'map', function (fun /*, thisp*/) {
- "use strict";
- var len = this.length;
- if (typeof fun != "function") {
- throw new TypeError();
- }
-
- var res = new Array(len);
- var thisp = arguments[1];
- for (var i = 0; i < len; i++) {
- if (i in this) {
- res[i] = fun.call(thisp, this[i], i, this);
- }
- }
-
- return res;
-});
-
-// IE <9 does not support indexOf
-//This prototype is provided by the Mozilla foundation and
-//is distributed under the MIT license.
-//http://www.ibiblio.org/pub/Linux/LICENSES/mit.license
-addFunc(Array, 'indexOf', function (elt /*, from*/) {
- "use strict";
- var len = this.length >>> 0;
-
- var from = Number(arguments[1]) || 0;
- from = (from < 0) ? Math.ceil(from) : Math.floor(from);
- if (from < 0) {
- from += len;
- }
-
- for (; from < len; from++) {
- if (from in this &&
- this[from] === elt) {
- return from;
- }
- }
- return -1;
-});
-
-// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
-if (!Object.keys) {
- Object.keys = (function () {
- 'use strict';
- var hasOwnProperty = Object.prototype.hasOwnProperty,
- hasDontEnumBug = !({toString: null}).propertyIsEnumerable('toString'),
- dontEnums = [
- 'toString',
- 'toLocaleString',
- 'valueOf',
- 'hasOwnProperty',
- 'isPrototypeOf',
- 'propertyIsEnumerable',
- 'constructor'
- ],
- dontEnumsLength = dontEnums.length;
-
- return function (obj) {
- if (typeof obj !== 'object' && (typeof obj !== 'function' || obj === null)) {
- throw new TypeError('Object.keys called on non-object');
- }
-
- var result = [], prop, i;
-
- for (prop in obj) {
- if (hasOwnProperty.call(obj, prop)) {
- result.push(prop);
- }
- }
-
- if (hasDontEnumBug) {
- for (i = 0; i < dontEnumsLength; i++) {
- if (hasOwnProperty.call(obj, dontEnums[i])) {
- result.push(dontEnums[i]);
- }
- }
- }
- return result;
- };
- })();
-}
-
-// PhantomJS 1.x doesn't support bind,
-// so leave this in until PhantomJS 2.0 is released
-//This prototype is provided by the Mozilla foundation and
-//is distributed under the MIT license.
-//http://www.ibiblio.org/pub/Linux/LICENSES/mit.license
-addFunc(Function, 'bind', function (oThis) {
- if (typeof this !== "function") {
- // closest thing possible to the ECMAScript 5
- // internal IsCallable function
- throw new TypeError("Function.prototype.bind - " +
- "what is trying to be bound is not callable");
- }
-
- var aArgs = Array.prototype.slice.call(arguments, 1),
- fToBind = this,
- fNOP = function () {},
- fBound = function () {
- return fToBind.apply(this instanceof fNOP && oThis ? this
- : oThis,
- aArgs.concat(Array.prototype.slice.call(arguments)));
- };
-
- fNOP.prototype = this.prototype;
- fBound.prototype = new fNOP();
-
- return fBound;
-});
-
-//
-// requestAnimationFrame shim with setTimeout fallback
-//
-
-window.requestAnimFrame = (function () {
- "use strict";
- return window.requestAnimationFrame ||
- window.webkitRequestAnimationFrame ||
- window.mozRequestAnimationFrame ||
- window.oRequestAnimationFrame ||
- window.msRequestAnimationFrame ||
- function (callback) {
- window.setTimeout(callback, 1000 / 60);
- };
-})();
-
-/*
- * ------------------------------------------------------
- * Namespaced in Util
- * ------------------------------------------------------
- */
-
-/*
- * Logging/debug routines
- */
-
-Util._log_level = 'warn';
-Util.init_logging = function (level) {
- "use strict";
- if (typeof level === 'undefined') {
- level = Util._log_level;
- } else {
- Util._log_level = level;
- }
- if (typeof window.console === "undefined") {
- if (typeof window.opera !== "undefined") {
- window.console = {
- 'log' : window.opera.postError,
- 'warn' : window.opera.postError,
- 'error': window.opera.postError
- };
- } else {
- window.console = {
- 'log' : function (m) {},
- 'warn' : function (m) {},
- 'error': function (m) {}
- };
- }
- }
-
- Util.Debug = Util.Info = Util.Warn = Util.Error = function (msg) {};
- /* jshint -W086 */
- switch (level) {
- case 'debug':
- Util.Debug = function (msg) { console.log(msg); };
- case 'info':
- Util.Info = function (msg) { console.log(msg); };
- case 'warn':
- Util.Warn = function (msg) { console.warn(msg); };
- case 'error':
- Util.Error = function (msg) { console.error(msg); };
- case 'none':
- break;
- default:
- throw new Error("invalid logging type '" + level + "'");
- }
- /* jshint +W086 */
-};
-Util.get_logging = function () {
- return Util._log_level;
-};
-// Initialize logging level
-Util.init_logging();
-
-Util.make_property = function (proto, name, mode, type) {
- "use strict";
-
- var getter;
- if (type === 'arr') {
- getter = function (idx) {
- if (typeof idx !== 'undefined') {
- return this['_' + name][idx];
- } else {
- return this['_' + name];
- }
- };
- } else {
- getter = function () {
- return this['_' + name];
- };
- }
-
- var make_setter = function (process_val) {
- if (process_val) {
- return function (val, idx) {
- if (typeof idx !== 'undefined') {
- this['_' + name][idx] = process_val(val);
- } else {
- this['_' + name] = process_val(val);
- }
- };
- } else {
- return function (val, idx) {
- if (typeof idx !== 'undefined') {
- this['_' + name][idx] = val;
- } else {
- this['_' + name] = val;
- }
- };
- }
- };
-
- var setter;
- if (type === 'bool') {
- setter = make_setter(function (val) {
- if (!val || (val in {'0': 1, 'no': 1, 'false': 1})) {
- return false;
- } else {
- return true;
- }
- });
- } else if (type === 'int') {
- setter = make_setter(function (val) { return parseInt(val, 10); });
- } else if (type === 'float') {
- setter = make_setter(parseFloat);
- } else if (type === 'str') {
- setter = make_setter(String);
- } else if (type === 'func') {
- setter = make_setter(function (val) {
- if (!val) {
- return function () {};
- } else {
- return val;
- }
- });
- } else if (type === 'arr' || type === 'dom' || type == 'raw') {
- setter = make_setter();
- } else {
- throw new Error('Unknown property type ' + type); // some sanity checking
- }
-
- // set the getter
- if (typeof proto['get_' + name] === 'undefined') {
- proto['get_' + name] = getter;
- }
-
- // set the setter if needed
- if (typeof proto['set_' + name] === 'undefined') {
- if (mode === 'rw') {
- proto['set_' + name] = setter;
- } else if (mode === 'wo') {
- proto['set_' + name] = function (val, idx) {
- if (typeof this['_' + name] !== 'undefined') {
- throw new Error(name + " can only be set once");
- }
- setter.call(this, val, idx);
- };
- }
- }
-
- // make a special setter that we can use in set defaults
- proto['_raw_set_' + name] = function (val, idx) {
- setter.call(this, val, idx);
- //delete this['_init_set_' + name]; // remove it after use
- };
-};
-
-Util.make_properties = function (constructor, arr) {
- "use strict";
- for (var i = 0; i < arr.length; i++) {
- Util.make_property(constructor.prototype, arr[i][0], arr[i][1], arr[i][2]);
- }
-};
-
-Util.set_defaults = function (obj, conf, defaults) {
- var defaults_keys = Object.keys(defaults);
- var conf_keys = Object.keys(conf);
- var keys_obj = {};
- var i;
- for (i = 0; i < defaults_keys.length; i++) { keys_obj[defaults_keys[i]] = 1; }
- for (i = 0; i < conf_keys.length; i++) { keys_obj[conf_keys[i]] = 1; }
- var keys = Object.keys(keys_obj);
-
- for (i = 0; i < keys.length; i++) {
- var setter = obj['_raw_set_' + keys[i]];
- if (!setter) {
- Util.Warn('Invalid property ' + keys[i]);
- continue;
- }
-
- if (keys[i] in conf) {
- setter.call(obj, conf[keys[i]]);
- } else {
- setter.call(obj, defaults[keys[i]]);
- }
- }
-};
-
-/*
- * Decode from UTF-8
- */
-Util.decodeUTF8 = function (utf8string) {
- "use strict";
- return decodeURIComponent(escape(utf8string));
-};
-
-
-
-/*
- * Cross-browser routines
- */
-
-
-// Dynamically load scripts without using document.write()
-// Reference: http://unixpapa.com/js/dyna.html
-//
-// Handles the case where load_scripts is invoked from a script that
-// itself is loaded via load_scripts. Once all scripts are loaded the
-// window.onscriptsloaded handler is called (if set).
-Util.get_include_uri = function () {
- return (typeof INCLUDE_URI !== "undefined") ? INCLUDE_URI : "include/";
-};
-Util._loading_scripts = [];
-Util._pending_scripts = [];
-Util.load_scripts = function (files) {
- "use strict";
- var head = document.getElementsByTagName('head')[0], script,
- ls = Util._loading_scripts, ps = Util._pending_scripts;
-
- var loadFunc = function (e) {
- while (ls.length > 0 && (ls[0].readyState === 'loaded' ||
- ls[0].readyState === 'complete')) {
- // For IE, append the script to trigger execution
- var s = ls.shift();
- //console.log("loaded script: " + s.src);
- head.appendChild(s);
- }
- if (!this.readyState ||
- (Util.Engine.presto && this.readyState === 'loaded') ||
- this.readyState === 'complete') {
- if (ps.indexOf(this) >= 0) {
- this.onload = this.onreadystatechange = null;
- //console.log("completed script: " + this.src);
- ps.splice(ps.indexOf(this), 1);
-
- // Call window.onscriptsload after last script loads
- if (ps.length === 0 && window.onscriptsload) {
- window.onscriptsload();
- }
- }
- }
- };
-
- for (var f = 0; f < files.length; f++) {
- script = document.createElement('script');
- script.type = 'text/javascript';
- script.src = Util.get_include_uri() + files[f];
- //console.log("loading script: " + script.src);
- script.onload = script.onreadystatechange = loadFunc;
- // In-order script execution tricks
- if (Util.Engine.trident) {
- // For IE wait until readyState is 'loaded' before
- // appending it which will trigger execution
- // http://wiki.whatwg.org/wiki/Dynamic_Script_Execution_Order
- ls.push(script);
- } else {
- // For webkit and firefox set async=false and append now
- // https://developer.mozilla.org/en-US/docs/HTML/Element/script
- script.async = false;
- head.appendChild(script);
- }
- ps.push(script);
- }
-};
-
-
-// Get DOM element position on page
-// This solution is based based on http://www.greywyvern.com/?post=331
-// Thanks to Brian Huisman AKA GreyWyvern!
-Util.getPosition = (function () {
- "use strict";
- function getStyle(obj, styleProp) {
- var y;
- if (obj.currentStyle) {
- y = obj.currentStyle[styleProp];
- } else if (window.getComputedStyle)
- y = window.getComputedStyle(obj, null)[styleProp];
- return y;
- }
-
- function scrollDist() {
- var myScrollTop = 0, myScrollLeft = 0;
- var html = document.getElementsByTagName('html')[0];
-
- // get the scrollTop part
- if (html.scrollTop && document.documentElement.scrollTop) {
- myScrollTop = html.scrollTop;
- } else if (html.scrollTop || document.documentElement.scrollTop) {
- myScrollTop = html.scrollTop + document.documentElement.scrollTop;
- } else if (document.body.scrollTop) {
- myScrollTop = document.body.scrollTop;
- } else {
- myScrollTop = 0;
- }
-
- // get the scrollLeft part
- if (html.scrollLeft && document.documentElement.scrollLeft) {
- myScrollLeft = html.scrollLeft;
- } else if (html.scrollLeft || document.documentElement.scrollLeft) {
- myScrollLeft = html.scrollLeft + document.documentElement.scrollLeft;
- } else if (document.body.scrollLeft) {
- myScrollLeft = document.body.scrollLeft;
- } else {
- myScrollLeft = 0;
- }
-
- return [myScrollLeft, myScrollTop];
- }
-
- return function (obj) {
- var curleft = 0, curtop = 0, scr = obj, fixed = false;
- while ((scr = scr.parentNode) && scr != document.body) {
- curleft -= scr.scrollLeft || 0;
- curtop -= scr.scrollTop || 0;
- if (getStyle(scr, "position") == "fixed") {
- fixed = true;
- }
- }
- if (fixed && !window.opera) {
- var scrDist = scrollDist();
- curleft += scrDist[0];
- curtop += scrDist[1];
- }
-
- do {
- curleft += obj.offsetLeft;
- curtop += obj.offsetTop;
- } while ((obj = obj.offsetParent));
-
- return {'x': curleft, 'y': curtop};
- };
-})();
-
-
-// Get mouse event position in DOM element
-Util.getEventPosition = function (e, obj, scale) {
- "use strict";
- var evt, docX, docY, pos;
- //if (!e) evt = window.event;
- evt = (e ? e : window.event);
- evt = (evt.changedTouches ? evt.changedTouches[0] : evt.touches ? evt.touches[0] : evt);
- if (evt.pageX || evt.pageY) {
- docX = evt.pageX;
- docY = evt.pageY;
- } else if (evt.clientX || evt.clientY) {
- docX = evt.clientX + document.body.scrollLeft +
- document.documentElement.scrollLeft;
- docY = evt.clientY + document.body.scrollTop +
- document.documentElement.scrollTop;
- }
- pos = Util.getPosition(obj);
- if (typeof scale === "undefined") {
- scale = 1;
- }
- var realx = docX - pos.x;
- var realy = docY - pos.y;
- var x = Math.max(Math.min(realx, obj.width - 1), 0);
- var y = Math.max(Math.min(realy, obj.height - 1), 0);
- return {'x': x / scale, 'y': y / scale, 'realx': realx / scale, 'realy': realy / scale};
-};
-
-
-// Event registration. Based on: http://www.scottandrew.com/weblog/articles/cbs-events
-Util.addEvent = function (obj, evType, fn) {
- "use strict";
- if (obj.attachEvent) {
- var r = obj.attachEvent("on" + evType, fn);
- return r;
- } else if (obj.addEventListener) {
- obj.addEventListener(evType, fn, false);
- return true;
- } else {
- throw new Error("Handler could not be attached");
- }
-};
-
-Util.removeEvent = function (obj, evType, fn) {
- "use strict";
- if (obj.detachEvent) {
- var r = obj.detachEvent("on" + evType, fn);
- return r;
- } else if (obj.removeEventListener) {
- obj.removeEventListener(evType, fn, false);
- return true;
- } else {
- throw new Error("Handler could not be removed");
- }
-};
-
-Util.stopEvent = function (e) {
- "use strict";
- if (e.stopPropagation) { e.stopPropagation(); }
- else { e.cancelBubble = true; }
-
- if (e.preventDefault) { e.preventDefault(); }
- else { e.returnValue = false; }
-};
-
-
-// Set browser engine versions. Based on mootools.
-Util.Features = {xpath: !!(document.evaluate), air: !!(window.runtime), query: !!(document.querySelector)};
-
-(function () {
- "use strict";
- // 'presto': (function () { return (!window.opera) ? false : true; }()),
- var detectPresto = function () {
- return !!window.opera;
- };
-
- // 'trident': (function () { return (!window.ActiveXObject) ? false : ((window.XMLHttpRequest) ? ((document.querySelectorAll) ? 6 : 5) : 4);
- var detectTrident = function () {
- if (!window.ActiveXObject) {
- return false;
- } else {
- if (window.XMLHttpRequest) {
- return (document.querySelectorAll) ? 6 : 5;
- } else {
- return 4;
- }
- }
- };
-
- // 'webkit': (function () { try { return (navigator.taintEnabled) ? false : ((Util.Features.xpath) ? ((Util.Features.query) ? 525 : 420) : 419); } catch (e) { return false; } }()),
- var detectInitialWebkit = function () {
- try {
- if (navigator.taintEnabled) {
- return false;
- } else {
- if (Util.Features.xpath) {
- return (Util.Features.query) ? 525 : 420;
- } else {
- return 419;
- }
- }
- } catch (e) {
- return false;
- }
- };
-
- var detectActualWebkit = function (initial_ver) {
- var re = /WebKit\/([0-9\.]*) /;
- var str_ver = (navigator.userAgent.match(re) || ['', initial_ver])[1];
- return parseFloat(str_ver, 10);
- };
-
- // 'gecko': (function () { return (!document.getBoxObjectFor && window.mozInnerScreenX == null) ? false : ((document.getElementsByClassName) ? 19ssName) ? 19 : 18 : 18); }())
- var detectGecko = function () {
- /* jshint -W041 */
- if (!document.getBoxObjectFor && window.mozInnerScreenX == null) {
- return false;
- } else {
- return (document.getElementsByClassName) ? 19 : 18;
- }
- /* jshint +W041 */
- };
-
- Util.Engine = {
- // Version detection break in Opera 11.60 (errors on arguments.callee.caller reference)
- //'presto': (function() {
- // return (!window.opera) ? false : ((arguments.callee.caller) ? 960 : ((document.getElementsByClassName) ? 950 : 925)); }()),
- 'presto': detectPresto(),
- 'trident': detectTrident(),
- 'webkit': detectInitialWebkit(),
- 'gecko': detectGecko(),
- };
-
- if (Util.Engine.webkit) {
- // Extract actual webkit version if available
- Util.Engine.webkit = detectActualWebkit(Util.Engine.webkit);
- }
-})();
-
-Util.Flash = (function () {
- "use strict";
- var v, version;
- try {
- v = navigator.plugins['Shockwave Flash'].description;
- } catch (err1) {
- try {
- v = new ActiveXObject('ShockwaveFlash.ShockwaveFlash').GetVariable('$version');
- } catch (err2) {
- v = '0 r0';
- }
- }
- version = v.match(/\d+/g);
- return {version: parseInt(version[0] || 0 + '.' + version[1], 10) || 0, build: parseInt(version[2], 10) || 0};
-}());