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File: bootstrap-ie8.js
/* Bootstrap 4 for IE8 - v4.3.100 */ /* https://github.com/namiltd/bootstrap-ie */ // create the nodeType constants if the Node object is not defined if (!window.Node){ var Node = { ELEMENT_NODE : 1, ATTRIBUTE_NODE : 2, TEXT_NODE : 3, CDATA_SECTION_NODE : 4, ENTITY_REFERENCE_NODE : 5, ENTITY_NODE : 6, PROCESSING_INSTRUCTION_NODE : 7, COMMENT_NODE : 8, DOCUMENT_NODE : 9, DOCUMENT_TYPE_NODE : 10, DOCUMENT_FRAGMENT_NODE : 11, NOTATION_NODE : 12 }; } (function() { if (!Object.keys) { Object.keys = function(obj) { if (obj !== Object(obj)) { throw new TypeError('Object.keys called on a non-object'); } var keys = []; for (var i in obj) { if (Object.prototype.hasOwnProperty.call(obj, i)) { keys.push(i); } } return keys; }; } }()); (function() { if (!Object.create) { Object.create = function(proto, props) { if (typeof props !== "undefined") { throw "The multiple-argument version of Object.create is not provided by this browser and cannot be shimmed."; } function ctor() { } ctor.prototype = proto; return new ctor(); }; } }()); (function() { if (!Array.prototype.forEach) { Array.prototype.forEach = function(fn, scope) { for(var i = 0, len = this.length; i < len; ++i) { fn.call(scope, this[i], i, this); } }; } }()); // ES 15.2.3.6 Object.defineProperty ( O, P, Attributes ) // Partial support for most common case - getters, setters, and values (function() { if (!Object.defineProperty || !(function () { try { Object.defineProperty({}, 'x', {}); return true; } catch (e) { return false; } } ())) { var orig = Object.defineProperty; Object.defineProperty = function (o, prop, desc) { // In IE8 try built-in implementation for defining properties on DOM prototypes. if (orig) { try { return orig(o, prop, desc); } catch (e) {} } if (o !== Object(o)) { throw TypeError("Object.defineProperty called on non-object"); } if (Object.prototype.__defineGetter__ && ('get' in desc)) { Object.prototype.__defineGetter__.call(o, prop, desc.get); } if (Object.prototype.__defineSetter__ && ('set' in desc)) { Object.prototype.__defineSetter__.call(o, prop, desc.set); } if ('value' in desc) { o[prop] = desc.value; } return o; }; } }()); (function() { if (!Function.prototype.bind) { Function.prototype.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; }; } }()); (function() { if (!Array.prototype.indexOf) { Array.prototype.indexOf = function(elt /*, from*/) { 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; }; } }()); (function() { var _slice = Array.prototype.slice; Array.prototype.slice = function() { if(this instanceof Array) { return _slice.apply(this, arguments); } else { var result = []; var start = (arguments.length >= 1) ? arguments[0] : 0; var end = (arguments.length >= 2) ? arguments[1] : this.length; for(var i=start; i<end; i++) { result.push(this[i]); } return result; } }; })(); // adds classList support (as Array) to Element.prototype for IE8-9 (function() { Object.defineProperty(Element.prototype, 'classList', { get:function(){ var element=this,domTokenList=(element.getAttribute('class')||'').replace(/^\s+|\s$/g,'').split(/\s+/g); if (domTokenList[0]==='') domTokenList.splice(0,1); function setClass(){ if (domTokenList.length > 0) element.setAttribute('class', domTokenList.join(' ')); else element.removeAttribute('class'); } domTokenList.toggle=function(className,force){ if (force!==undefined){ if (force) domTokenList.add(className); else domTokenList.remove(className); } else { if (domTokenList.indexOf(className)!==-1) domTokenList.splice(domTokenList.indexOf(className),1); else domTokenList.push(className); } setClass(); }; domTokenList.add=function(){ var args=[].slice.call(arguments); for (var i=0,l=args.length;i<l;i++){ if (domTokenList.indexOf(args[i])===-1) domTokenList.push(args[i]); } setClass(); }; domTokenList.remove=function(){ var args=[].slice.call(arguments); for (var i=0,l=args.length;i<l;i++){ if (domTokenList.indexOf(args[i])!==-1) domTokenList.splice(domTokenList.indexOf(args[i]),1); } setClass(); }; domTokenList.item=function(i){ return domTokenList[i]; }; domTokenList.contains=function(className){ return domTokenList.indexOf(className)!==-1; }; domTokenList.replace=function(oldClass,newClass){ if (domTokenList.indexOf(oldClass)!==-1) domTokenList.splice(domTokenList.indexOf(oldClass),1,newClass); setClass(); }; domTokenList.value = (element.getAttribute('class')||''); return domTokenList; } }); })(); /** * Modified code based on remPolyfill.js (c) Nicolas Bouvrette https://github.com/nbouvrette/remPolyfill * * Customizations: * * 1) Added new method `addCallBackWhenReady` to perform callbacks once the polyfill has been applied (especially useful for * onload scrolling events. * 2) Added REM support. * **/ /** * For browsers that do not support REM units, fallback to pixels. */ window.remPolyfill = { /** @property Number|null - The body's font size. * @private */ bodyFontSize: null, /** * Get the body font size. * * @returns {Number} - The body font size in pixel (number only). */ getBodyFontSize: function() { if (!this.bodyFontSize) { if (!document.body) { var bodyElement = document.createElement('body'); document.documentElement.appendChild(bodyElement); this.bodyFontSize = parseFloat(this.getStyle(document.body, 'fontSize')); document.documentElement.removeChild(bodyElement); bodyElement = null; } else { this.bodyFontSize = parseFloat(this.getStyle(document.body, 'fontSize')); } } return this.bodyFontSize; }, /** * Get the style of an element for a given property. * * @private * * @param {HTMLElement} element - The HTML element. * @param {string} property - The property of the style to get. */ getStyle: function(element, property) { if (typeof window.getComputedStyle !== 'undefined') { return window.getComputedStyle(element, null).getPropertyValue(property); } else { return element.currentStyle[property]; } }, /** * Implement this script on a given element. * * @private * * @param {string} cssText - The CSS text of the link element. */ replaceCSS: function (cssText) { if (cssText) { // Replace all properties containing REM units with their pixel equivalents. return cssText.replace( /([\d]+\.[\d]+|\.[\d]+|[\d]+)rem/g, function (fullMatch, groupMatch) { return Math.round(parseFloat(groupMatch * remPolyfill.getBodyFontSize())) + 'px';} ).replace( /calc\s*\(\s*\(\s*([\d]+)\s*px\s*([\+-])\s*([\d]+)\s*px\s*\)\s*\*\s*(-?[\d]+)\s*\)/g, function (fullMatch, MatchArg1, MatchSign, MatchArg2, MatchArg3) { return ((parseInt(MatchArg1)+(MatchSign=='-'?-1:1)*parseInt(MatchArg2))*parseInt(MatchArg3))+'px';} ).replace( /calc\s*\(\s*([\d]+)\s*px\s*([\+-])\s*([\d]+)\s*px\s*\)/g, function (fullMatch, MatchArg1, MatchSign, MatchArg2) { return (parseInt(MatchArg1)+(MatchSign=='-'?-1:1)*parseInt(MatchArg2))+'px';} ).replace( /::/g, ':' ).replace( /:disabled/g, '._disabled' ).replace( /:invalid/g, '._invalid' ).replace( /:valid/g, '._valid' ).replace( /background-color\s*:\s*rgba\s*\(\s*([\d]+)\s*,\s*([\d]+)\s*,\s*([\d]+)\s*,\s*([\d\.]+)\s*\)/g, function (fullMatch, MatchR, MatchG, MatchB, MatchA) { var ARGBhex = (4294967296+16777216*Math.round(parseFloat(MatchA)*255)+65536*parseInt(MatchR)+256*parseInt(MatchG)+parseInt(MatchB)).toString(16).substr(1); return 'filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#'+ARGBhex+', endColorstr=#'+ARGBhex+')';} ).replace( /rgba\s*\(\s*([\d]+)\s*,\s*([\d]+)\s*,\s*([\d]+)\s*,\s*([\d\.]+)\s*\)/g, function (fullMatch, MatchR, MatchG, MatchB, MatchA) { var MR = parseInt(MatchR), MG = parseInt(MatchG), MB = parseInt(MatchB), MA = parseFloat(MatchA); if ((MR==255)&&(MG==255)&&(MB==255)) { //dark background return 'rgb(' + Math.round(MA * 255) + ', ' + Math.round(MA * 255) + ', ' + Math.round(MA * 255) +')'; } else { //else return 'rgb(' + Math.round((1-MA) * 255 + MA * MR) + ', ' + Math.round((1-MA) * 255 + MA * MG) + ', ' + Math.round((1-MA) * 255 + MA * MB) +')'; } } ).replace( /opacity\s*:\s*([\d]+\.[\d]+|\.[\d]+|[\d]+)/g, function (fullMatch, groupMatch) { return 'filter:alpha(opacity=' + Math.round(parseFloat(groupMatch * 100)) + ')';} ); } }, /** * Implement this script on a given element. * * @param {HTMLLinkElement} linkElement - The link element to polyfill. */ implement: function (linkElement) { if (!linkElement.href) { return; } var request = null; if (window.XMLHttpRequest) { request = new XMLHttpRequest(); } else if (window.ActiveXObject) { try { request = new ActiveXObject("Msxml2.XMLHTTP"); } catch (exception) { try { request = new ActiveXObject("Microsoft.XMLHTTP"); } catch (exception) { request = null; } } } if (!request) { return; } request.open('GET', linkElement.href, true); request.onreadystatechange = function() { if ( request.readyState === 4 ) { linkElement.styleSheet.cssText = remPolyfill.replaceCSS(request.responseText); } }; request.send(null); } }; var linkElements = document.querySelectorAll('link[rel=stylesheet]'); for (var linkElementId in linkElements) { if (Object.prototype.hasOwnProperty.call(linkElements, linkElementId)) { remPolyfill.implement(linkElements[linkElementId]); } } /*! matchMedia() polyfill - Test a CSS media type/query in JS. Authors & copyright (c) 2012: Scott Jehl, Paul Irish, Nicholas Zakas. Dual MIT/BSD license */ /*! NOTE: If you're already including a window.matchMedia polyfill via Modernizr or otherwise, you don't need this part */ (function (w) { "use strict"; w.matchMedia = w.matchMedia || function (doc, undefined) { var bool, docElem = doc.documentElement, refNode = docElem.firstElementChild || docElem.firstChild, fakeBody = doc.createElement("body"), div = doc.createElement("div"); div.id = "mq-test-1"; div.style.cssText = "position:absolute;top:-100em"; fakeBody.style.background = "none"; fakeBody.appendChild(div); return function (q) { div.innerHTML = '­<style media="' + q + '"> #mq-test-1 { width: 42px; }</style>'; docElem.insertBefore(fakeBody, refNode); bool = div.offsetWidth === 42; docElem.removeChild(fakeBody); return { matches: bool, media: q }; }; }(w.document); })(this); /* Respond.js: min/max-width media query polyfill. (c) Scott Jehl. MIT Lic. j.mp/respondjs */ (function (w) { "use strict"; //exposed namespace var respond = {}; w.respond = respond; //define update even in native-mq-supporting browsers, to avoid errors respond.update = function () { }; //define ajax obj var requestQueue = [], xmlHttp = function () { var xmlhttpmethod = false; try { xmlhttpmethod = new w.XMLHttpRequest(); } catch (e) { xmlhttpmethod = new w.ActiveXObject("Microsoft.XMLHTTP"); } return function () { return xmlhttpmethod; }; }(), //tweaked Ajax functions from Quirksmode ajax = function (url, callback) { var req = xmlHttp(); if (!req) { return; } try { req.open("GET", url, true); req.onreadystatechange = function () { if (req.readyState !== 4 || req.status !== 200 && req.status !== 304) { return; } callback( remPolyfill.replaceCSS(req.responseText) ); }; if (req.readyState === 4) { return; } req.send(null); } catch ( e ) { } }, isUnsupportedMediaQuery = function (query) { return query.replace(respond.regex.minmaxwh, '').match(respond.regex.other); }; //expose for testing respond.ajax = ajax; respond.queue = requestQueue; respond.unsupportedmq = isUnsupportedMediaQuery; respond.regex = { media: /@media[^\{]+\{([^\{\}]*\{[^\}\{]*\})+/gi, keyframes: /@(?:\-(?:o|moz|webkit)\-)?keyframes[^\{]+\{(?:[^\{\}]*\{[^\}\{]*\})+[^\}]*\}/gi, comments: /\/\*[^*]*\*+([^/][^*]*\*+)*\//gi, urls: /(url\()['"]?([^\/\)'"][^:\)'"]+)['"]?(\))/g, findStyles: /@media *([^\{]+)\{([\S\s]+?)$/, only: /(only\s+)?([a-zA-Z]+)\s?/, minw: /\(\s*min\-width\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/, maxw: /\(\s*max\-width\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/, minmaxwh: /\(\s*m(in|ax)\-(height|width)\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/gi, other: /\([^\)]*\)/g }; //expose media query support flag for external use respond.mediaQueriesSupported = w.matchMedia && w.matchMedia("only all") !== null && w.matchMedia("only all").matches; //if media queries are supported, exit here if (respond.mediaQueriesSupported) { return; } respond.callbackQueue = []; respond.addCallBackWhenReady = function (callback) { respond.callbackQueue.push(callback); }; respond.callback = function () { if (respond.callbackQueue.length) { for (var callback in respond.callbackQueue) { respond.callbackQueue[callback](); } } }; //define vars var doc = w.document, docElem = doc.documentElement, mediastyles = [], rules = [], appendedEls = [], parsedSheets = {}, resizeThrottle = 30, head = doc.getElementsByTagName("head")[0] || docElem, base = doc.getElementsByTagName("base")[0], links = head.getElementsByTagName("link"), lastCall, resizeDefer, //cached container for 1em value, populated the first time it's needed eminpx, // returns the value of 1em in pixels getEmValue = function () { var ret, div = doc.createElement('div'), body = doc.body, originalHTMLFontSize = docElem.style.fontSize, originalBodyFontSize = body && body.style.fontSize, fakeUsed = false; div.style.cssText = "position:absolute;font-size:1em;width:1em"; if (!body) { body = fakeUsed = doc.createElement("body"); body.style.background = "none"; } // 1em in a media query is the value of the default font size of the browser // reset docElem and body to ensure the correct value is returned docElem.style.fontSize = "100%"; body.style.fontSize = "100%"; body.appendChild(div); if (fakeUsed) { docElem.insertBefore(body, docElem.firstChild); } ret = div.offsetWidth; if (fakeUsed) { docElem.removeChild(body); } else { body.removeChild(div); } // restore the original values docElem.style.fontSize = originalHTMLFontSize; if (originalBodyFontSize) { body.style.fontSize = originalBodyFontSize; } //also update eminpx before returning ret = eminpx = parseFloat(ret); return ret; }, //enable/disable styles applyMedia = function (fromResize) { var name = "clientWidth", docElemProp = docElem[name], currWidth = doc.compatMode === "CSS1Compat" && docElemProp || doc.body[name] || docElemProp, styleBlocks = {}, lastLink = links[links.length - 1], now = new Date().getTime(); //throttle resize calls if (fromResize && lastCall && now - lastCall < resizeThrottle) { w.clearTimeout(resizeDefer); resizeDefer = w.setTimeout(applyMedia, resizeThrottle); return; } else { lastCall = now; } for (var i in mediastyles) { if (mediastyles.hasOwnProperty(i)) { var thisstyle = mediastyles[i], min = thisstyle.minw, max = thisstyle.maxw, minnull = min === null, maxnull = max === null, em = "em"; if (!!min) { min = parseFloat(min) * (min.indexOf(em) > -1 ? ( eminpx || getEmValue() ) : 1); } if (!!max) { max = parseFloat(max) * (max.indexOf(em) > -1 ? ( eminpx || getEmValue() ) : 1); } // if there's no media query at all (the () part), or min or max is not null, and if either is present, they're true if (!thisstyle.hasquery || (!minnull || !maxnull) && (minnull || currWidth >= min) && (maxnull || currWidth <= max)) { if (!styleBlocks[thisstyle.media]) { styleBlocks[thisstyle.media] = []; } styleBlocks[thisstyle.media].push(rules[thisstyle.rules]); } } } //remove any existing respond style element(s) for (var j in appendedEls) { if (appendedEls.hasOwnProperty(j)) { if (appendedEls[j] && appendedEls[j].parentNode === head) { head.removeChild(appendedEls[j]); } } } appendedEls.length = 0; //inject active styles, grouped by media type for (var k in styleBlocks) { if (styleBlocks.hasOwnProperty(k)) { var ss = doc.createElement("style"), css = styleBlocks[k].join("\n"); ss.type = "text/css"; ss.media = k; //originally, ss was appended to a documentFragment and sheets were appended in bulk. //this caused crashes in IE in a number of circumstances, such as when the HTML element had a bg image set, so appending beforehand seems best. Thanks to @dvelyk for the initial research on this one! head.insertBefore(ss, lastLink.nextSibling); if (ss.styleSheet) { ss.styleSheet.cssText = css; } else { ss.appendChild(doc.createTextNode(css)); } //push to appendedEls to track for later removal appendedEls.push(ss); } } }, //find media blocks in css text, convert to style blocks translate = function (styles, href, media) { var qs = styles.replace(respond.regex.comments, "") .replace(respond.regex.keyframes, "") .match(respond.regex.media), ql = qs && qs.length || 0; //try to get CSS path href = href.substring(0, href.lastIndexOf("/")); var repUrls = function (css) { return css.replace(respond.regex.urls, "$1" + href + "$2$3"); }, useMedia = !ql && media; //if path exists, tack on trailing slash if (href.length) { href += "/"; } //if no internal queries exist, but media attr does, use that //note: this currently lacks support for situations where a media attr is specified on a link AND //its associated stylesheet has internal CSS media queries. //In those cases, the media attribute will currently be ignored. if (useMedia) { ql = 1; } for (var i = 0; i < ql; i++) { var fullq, thisq, eachq, eql; //media attr if (useMedia) { fullq = media; rules.push(repUrls(styles)); //parse for styles } else { fullq = qs[i].match(respond.regex.findStyles) && RegExp.$1; rules.push(RegExp.$2 && repUrls(RegExp.$2)); } eachq = fullq.split(","); eql = eachq.length; for (var j = 0; j < eql; j++) { thisq = eachq[j]; if (isUnsupportedMediaQuery(thisq)) { continue; } mediastyles.push({ media: thisq.split("(")[0].match(respond.regex.only) && RegExp.$2 || "all", rules: rules.length - 1, hasquery: thisq.indexOf("(") > -1, minw: thisq.match(respond.regex.minw) && parseFloat(RegExp.$1) + (RegExp.$2 || ""), maxw: thisq.match(respond.regex.maxw) && parseFloat(RegExp.$1) + (RegExp.$2 || "") }); } } applyMedia(); }, //recurse through request queue, get css text makeRequests = function () { if (requestQueue.length) { var thisRequest = requestQueue.shift(); ajax(thisRequest.href, function (styles) { translate(styles, thisRequest.href, thisRequest.media); parsedSheets[thisRequest.href] = true; // by wrapping recursive function call in setTimeout // we prevent "Stack overflow" error in IE7 w.setTimeout(function () { makeRequests(); }, 0); }); } else { respond.callback(); } }, //loop stylesheets, send text content to translate ripCSS = function () { for (var i = 0; i < links.length; i++) { var sheet = links[i], href = sheet.href, media = sheet.media, isCSS = sheet.rel && sheet.rel.toLowerCase() === "stylesheet"; //only links plz and prevent re-parsing if (!!href && isCSS && !parsedSheets[href]) { // selectivizr exposes css through the rawCssText expando if (sheet.styleSheet && sheet.styleSheet.rawCssText) { translate(sheet.styleSheet.rawCssText, href, media); parsedSheets[href] = true; } else { if (!/^([a-zA-Z:]*\/\/)/.test(href) && !base || href.replace(RegExp.$1, "").split("/")[0] === w.location.host) { // IE7 doesn't handle urls that start with '//' for ajax request // manually add in the protocol if (href.substring(0, 2) === "//") { href = w.location.protocol + href; } requestQueue.push({ href: href, media: media }); } } } } makeRequests(); }; //translate CSS ripCSS(); //expose update for re-running respond later on respond.update = ripCSS; //expose getEmValue respond.getEmValue = getEmValue; //adjust on resize function callMedia() { applyMedia(true); } if (w.addEventListener) { w.addEventListener("resize", callMedia, false); } else if (w.attachEvent) { w.attachEvent("onresize", callMedia); } })(this);