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Diffstat (limited to 'webclients/novnc/include/util.js')
| -rw-r--r-- | webclients/novnc/include/util.js | 656 |
1 files changed, 0 insertions, 656 deletions
diff --git a/webclients/novnc/include/util.js b/webclients/novnc/include/util.js deleted file mode 100644 index 909d04b..0000000 --- a/webclients/novnc/include/util.js +++ /dev/null @@ -1,656 +0,0 @@ -/* - * 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}; -}()); |