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/* Bootstrap 4 for IE9 - v4.3.100 */
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/* https://github.com/namiltd/bootstrap-ie */
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/**
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* Modified code based on remPolyfill.js (c) Nicolas Bouvrette https://github.com/nbouvrette/remPolyfill
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*
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* Customizations:
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*
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* 1) Added new method `addCallBackWhenReady` to perform callbacks once the polyfill has been applied (especially useful for
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* onload scrolling events.
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* 2) Added REM support.
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*
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**/
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// adds classList support (as Array) to Element.prototype for IE8-9
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(function() {
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Object.defineProperty(Element.prototype, 'classList', {
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get:function(){
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var element=this,domTokenList=(element.getAttribute('class')||'').replace(/^\s+|\s$/g,'').split(/\s+/g);
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if (domTokenList[0]==='') domTokenList.splice(0,1);
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function setClass(){
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if (domTokenList.length > 0) element.setAttribute('class', domTokenList.join(' '));
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else element.removeAttribute('class');
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}
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domTokenList.toggle=function(className,force){
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if (force!==undefined){
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if (force) domTokenList.add(className);
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else domTokenList.remove(className);
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}
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else {
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if (domTokenList.indexOf(className)!==-1) domTokenList.splice(domTokenList.indexOf(className),1);
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else domTokenList.push(className);
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}
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setClass();
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};
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domTokenList.add=function(){
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var args=[].slice.call(arguments);
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for (var i=0,l=args.length;i<l;i++){
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if (domTokenList.indexOf(args[i])===-1) domTokenList.push(args[i]);
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}
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setClass();
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};
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domTokenList.remove=function(){
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var args=[].slice.call(arguments);
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for (var i=0,l=args.length;i<l;i++){
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if (domTokenList.indexOf(args[i])!==-1) domTokenList.splice(domTokenList.indexOf(args[i]),1);
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}
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setClass();
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};
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domTokenList.item=function(i){
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return domTokenList[i];
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};
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domTokenList.contains=function(className){
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return domTokenList.indexOf(className)!==-1;
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};
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domTokenList.replace=function(oldClass,newClass){
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if (domTokenList.indexOf(oldClass)!==-1) domTokenList.splice(domTokenList.indexOf(oldClass),1,newClass);
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setClass();
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};
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domTokenList.value = (element.getAttribute('class')||'');
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return domTokenList;
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}
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});
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})();
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/**
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* For browsers that do not support REM units, fallback to pixels.
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*/
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window.remPolyfill = {
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/**
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* Implement this script on a given element.
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*
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* @private
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*
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* @param {string} cssText - The CSS text of the link element.
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*/
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replaceCSS: function (cssText) {
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if (cssText) {
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// Replace all properties containing REM units with their pixel equivalents.
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return cssText.replace(
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/:invalid/g, '._invalid'
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).replace(
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/:valid/g, '._valid'
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);
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}
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},
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/**
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* Implement this script on a given element.
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*
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* @param {HTMLLinkElement} linkElement - The link element to polyfill.
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*/
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implement: function (linkElement) {
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if (!linkElement.href) {
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return;
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}
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var request = null;
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if (window.XMLHttpRequest) {
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request = new XMLHttpRequest();
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} else if (window.ActiveXObject) {
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try {
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request = new ActiveXObject("Msxml2.XMLHTTP");
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} catch (exception) {
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try {
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request = new ActiveXObject("Microsoft.XMLHTTP");
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} catch (exception) {
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request = null;
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}
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}
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}
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if (!request) {
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return;
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}
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request.open('GET', linkElement.href, true);
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request.onreadystatechange = function() {
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if ( request.readyState === 4 ) {
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linkElement.styleSheet.cssText = remPolyfill.replaceCSS(request.responseText);
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}
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};
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request.send(null);
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}
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};
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var linkElements = document.querySelectorAll('link[rel=stylesheet]');
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for (var linkElementId in linkElements) {
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if (Object.prototype.hasOwnProperty.call(linkElements, linkElementId)) {
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remPolyfill.implement(linkElements[linkElementId]);
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}
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}
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