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rexy |
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/* Bootstrap 4 for IE8 - 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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/**
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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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/** @property Number|null - The body's font size.
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* @private */
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bodyFontSize: null,
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/**
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* Get the body font size.
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*
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* @returns {Number} - The body font size in pixel (number only).
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*/
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getBodyFontSize: function() {
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if (!this.bodyFontSize) {
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if (!document.body) {
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var bodyElement = document.createElement('body');
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document.documentElement.appendChild(bodyElement);
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this.bodyFontSize = parseFloat(this.getStyle(document.body, 'fontSize'));
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document.documentElement.removeChild(bodyElement);
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bodyElement = null;
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} else {
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this.bodyFontSize = parseFloat(this.getStyle(document.body, 'fontSize'));
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}
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}
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return this.bodyFontSize;
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},
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/**
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* Get the style of an element for a given property.
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*
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* @private
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*
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* @param {HTMLElement} element - The HTML element.
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* @param {string} property - The property of the style to get.
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*/
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getStyle: function(element, property) {
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if (typeof window.getComputedStyle !== 'undefined') {
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return window.getComputedStyle(element, null).getPropertyValue(property);
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} else {
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return element.currentStyle[property];
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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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* @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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/([\d]+\.[\d]+|\.[\d]+|[\d]+)rem/g, function (fullMatch, groupMatch) {
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return Math.round(parseFloat(groupMatch * remPolyfill.getBodyFontSize())) + 'px';}
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).replace(
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/calc\s*\(\s*\(\s*([\d]+)\s*px\s*([\+-])\s*([\d]+)\s*px\s*\)\s*\*\s*(-?[\d]+)\s*\)/g, function (fullMatch, MatchArg1, MatchSign, MatchArg2, MatchArg3) {
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return ((parseInt(MatchArg1)+(MatchSign=='-'?-1:1)*parseInt(MatchArg2))*parseInt(MatchArg3))+'px';}
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).replace(
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/calc\s*\(\s*([\d]+)\s*px\s*([\+-])\s*([\d]+)\s*px\s*\)/g, function (fullMatch, MatchArg1, MatchSign, MatchArg2) {
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return (parseInt(MatchArg1)+(MatchSign=='-'?-1:1)*parseInt(MatchArg2))+'px';}
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).replace(
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/::/g, ':'
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).replace(
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/:disabled/g, '._disabled'
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).replace(
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/:invalid/g, '._invalid'
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).replace(
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/:valid/g, '._valid'
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).replace(
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/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) {
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var ARGBhex = (4294967296+16777216*Math.round(parseFloat(MatchA)*255)+65536*parseInt(MatchR)+256*parseInt(MatchG)+parseInt(MatchB)).toString(16).substr(1);
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return 'filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#'+ARGBhex+', endColorstr=#'+ARGBhex+')';}
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).replace(
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/rgba\s*\(\s*([\d]+)\s*,\s*([\d]+)\s*,\s*([\d]+)\s*,\s*([\d\.]+)\s*\)/g, function (fullMatch, MatchR, MatchG, MatchB, MatchA) {
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var MR = parseInt(MatchR), MG = parseInt(MatchG), MB = parseInt(MatchB), MA = parseFloat(MatchA);
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if ((MR==255)&&(MG==255)&&(MB==255)) { //dark background
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return 'rgb(' + Math.round(MA * 255) + ', ' + Math.round(MA * 255) + ', ' + Math.round(MA * 255) +')';
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} else { //else
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return 'rgb(' + Math.round((1-MA) * 255 + MA * MR) + ', ' + Math.round((1-MA) * 255 + MA * MG) + ', ' + Math.round((1-MA) * 255 + MA * MB) +')';
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}
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}
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).replace(
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/opacity\s*:\s*([\d]+\.[\d]+|\.[\d]+|[\d]+)/g, function (fullMatch, groupMatch) {
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return 'filter:alpha(opacity=' + Math.round(parseFloat(groupMatch * 100)) + ')';}
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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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/*! matchMedia() polyfill - Test a CSS media type/query in JS. Authors & copyright (c) 2012: Scott Jehl, Paul Irish, Nicholas Zakas. Dual MIT/BSD license */
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/*! NOTE: If you're already including a window.matchMedia polyfill via Modernizr or otherwise, you don't need this part */
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(function (w) {
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"use strict";
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w.matchMedia = w.matchMedia || function (doc, undefined) {
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var bool, docElem = doc.documentElement, refNode = docElem.firstElementChild || docElem.firstChild,
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fakeBody = doc.createElement("body"), div = doc.createElement("div");
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div.id = "mq-test-1";
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div.style.cssText = "position:absolute;top:-100em";
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fakeBody.style.background = "none";
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fakeBody.appendChild(div);
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return function (q) {
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div.innerHTML = '­<style media="' + q + '"> #mq-test-1 { width: 42px; }</style>';
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docElem.insertBefore(fakeBody, refNode);
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bool = div.offsetWidth === 42;
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docElem.removeChild(fakeBody);
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return {
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matches: bool,
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media: q
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};
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};
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}(w.document);
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})(this);
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/* Respond.js: min/max-width media query polyfill. (c) Scott Jehl. MIT Lic. j.mp/respondjs */
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(function (w) {
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"use strict";
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//exposed namespace
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var respond = {};
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w.respond = respond;
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//define update even in native-mq-supporting browsers, to avoid errors
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respond.update = function () {
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};
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//define ajax obj
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var requestQueue = [],
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xmlHttp = function () {
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var xmlhttpmethod = false;
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try {
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xmlhttpmethod = new w.XMLHttpRequest();
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} catch (e) {
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xmlhttpmethod = new w.ActiveXObject("Microsoft.XMLHTTP");
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}
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return function () {
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return xmlhttpmethod;
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};
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}(),
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//tweaked Ajax functions from Quirksmode
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ajax = function (url, callback) {
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var req = xmlHttp();
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if (!req) {
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return;
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}
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try {
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req.open("GET", url, true);
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req.onreadystatechange = function () {
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if (req.readyState !== 4 || req.status !== 200 && req.status !== 304) {
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return;
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}
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callback( remPolyfill.replaceCSS(req.responseText) );
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};
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if (req.readyState === 4) {
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return;
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}
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req.send(null);
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}
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catch ( e ) {
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}
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}, isUnsupportedMediaQuery = function (query) {
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return query.replace(respond.regex.minmaxwh, '').match(respond.regex.other);
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};
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//expose for testing
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respond.ajax = ajax;
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respond.queue = requestQueue;
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respond.unsupportedmq = isUnsupportedMediaQuery;
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respond.regex = {
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media: /@media[^\{]+\{([^\{\}]*\{[^\}\{]*\})+/gi,
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keyframes: /@(?:\-(?:o|moz|webkit)\-)?keyframes[^\{]+\{(?:[^\{\}]*\{[^\}\{]*\})+[^\}]*\}/gi,
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comments: /\/\*[^*]*\*+([^/][^*]*\*+)*\//gi,
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urls: /(url\()['"]?([^\/\)'"][^:\)'"]+)['"]?(\))/g,
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findStyles: /@media *([^\{]+)\{([\S\s]+?)$/,
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only: /(only\s+)?([a-zA-Z]+)\s?/,
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minw: /\(\s*min\-width\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/,
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maxw: /\(\s*max\-width\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/,
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minmaxwh: /\(\s*m(in|ax)\-(height|width)\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/gi,
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other: /\([^\)]*\)/g
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};
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//expose media query support flag for external use
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respond.mediaQueriesSupported = w.matchMedia && w.matchMedia("only all") !== null && w.matchMedia("only all").matches;
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//if media queries are supported, exit here
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if (respond.mediaQueriesSupported) {
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return;
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}
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respond.callbackQueue = [];
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respond.addCallBackWhenReady = function (callback) {
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respond.callbackQueue.push(callback);
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};
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respond.callback = function () {
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if (respond.callbackQueue.length) {
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for (var callback in respond.callbackQueue) {
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respond.callbackQueue[callback]();
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}
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}
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};
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//define vars
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var doc = w.document,
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docElem = doc.documentElement,
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mediastyles = [],
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rules = [],
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appendedEls = [],
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parsedSheets = {},
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resizeThrottle = 30,
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head = doc.getElementsByTagName("head")[0] || docElem,
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base = doc.getElementsByTagName("base")[0],
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links = head.getElementsByTagName("link"),
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lastCall,
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resizeDefer,
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//cached container for 1em value, populated the first time it's needed
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eminpx,
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// returns the value of 1em in pixels
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getEmValue = function () {
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var ret,
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div = doc.createElement('div'),
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body = doc.body,
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originalHTMLFontSize = docElem.style.fontSize,
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originalBodyFontSize = body && body.style.fontSize,
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fakeUsed = false;
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div.style.cssText = "position:absolute;font-size:1em;width:1em";
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if (!body) {
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body = fakeUsed = doc.createElement("body");
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body.style.background = "none";
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}
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// 1em in a media query is the value of the default font size of the browser
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// reset docElem and body to ensure the correct value is returned
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docElem.style.fontSize = "100%";
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body.style.fontSize = "100%";
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body.appendChild(div);
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if (fakeUsed) {
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docElem.insertBefore(body, docElem.firstChild);
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}
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ret = div.offsetWidth;
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301 |
if (fakeUsed) {
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docElem.removeChild(body);
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} else {
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body.removeChild(div);
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}
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// restore the original values
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docElem.style.fontSize = originalHTMLFontSize;
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308 |
if (originalBodyFontSize) {
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309 |
body.style.fontSize = originalBodyFontSize;
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310 |
}
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//also update eminpx before returning
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ret = eminpx = parseFloat(ret);
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return ret;
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},
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//enable/disable styles
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317 |
applyMedia = function (fromResize) {
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var name = "clientWidth",
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docElemProp = docElem[name],
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currWidth = doc.compatMode === "CSS1Compat" && docElemProp || doc.body[name] || docElemProp,
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styleBlocks = {},
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lastLink = links[links.length - 1],
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now = new Date().getTime();
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324 |
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//throttle resize calls
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326 |
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327 |
if (fromResize && lastCall && now - lastCall < resizeThrottle) {
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328 |
w.clearTimeout(resizeDefer);
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329 |
resizeDefer = w.setTimeout(applyMedia, resizeThrottle);
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330 |
return;
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331 |
} else {
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332 |
lastCall = now;
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333 |
}
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334 |
for (var i in mediastyles) {
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335 |
if (mediastyles.hasOwnProperty(i)) {
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336 |
var thisstyle = mediastyles[i],
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337 |
min = thisstyle.minw,
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338 |
max = thisstyle.maxw,
|
|
|
339 |
minnull = min === null,
|
|
|
340 |
maxnull = max === null,
|
|
|
341 |
em = "em";
|
|
|
342 |
if (!!min) {
|
|
|
343 |
min = parseFloat(min) * (min.indexOf(em) > -1 ? ( eminpx || getEmValue() ) : 1);
|
|
|
344 |
}
|
|
|
345 |
if (!!max) {
|
|
|
346 |
max = parseFloat(max) * (max.indexOf(em) > -1 ? ( eminpx || getEmValue() ) : 1);
|
|
|
347 |
}
|
|
|
348 |
// 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
|
|
|
349 |
if (!thisstyle.hasquery || (!minnull || !maxnull) && (minnull || currWidth >= min) && (maxnull || currWidth <= max)) {
|
|
|
350 |
if (!styleBlocks[thisstyle.media]) {
|
|
|
351 |
styleBlocks[thisstyle.media] = [];
|
|
|
352 |
}
|
|
|
353 |
styleBlocks[thisstyle.media].push(rules[thisstyle.rules]);
|
|
|
354 |
}
|
|
|
355 |
}
|
|
|
356 |
}
|
|
|
357 |
//remove any existing respond style element(s)
|
|
|
358 |
for (var j in appendedEls) {
|
|
|
359 |
if (appendedEls.hasOwnProperty(j)) {
|
|
|
360 |
if (appendedEls[j] && appendedEls[j].parentNode === head) {
|
|
|
361 |
head.removeChild(appendedEls[j]);
|
|
|
362 |
}
|
|
|
363 |
}
|
|
|
364 |
}
|
|
|
365 |
appendedEls.length = 0;
|
|
|
366 |
//inject active styles, grouped by media type
|
|
|
367 |
for (var k in styleBlocks) {
|
|
|
368 |
if (styleBlocks.hasOwnProperty(k)) {
|
|
|
369 |
var ss = doc.createElement("style"),
|
|
|
370 |
css = styleBlocks[k].join("\n");
|
|
|
371 |
ss.type = "text/css";
|
|
|
372 |
ss.media = k;
|
|
|
373 |
//originally, ss was appended to a documentFragment and sheets were appended in bulk.
|
|
|
374 |
//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!
|
|
|
375 |
head.insertBefore(ss, lastLink.nextSibling);
|
|
|
376 |
if (ss.styleSheet) {
|
|
|
377 |
ss.styleSheet.cssText = css;
|
|
|
378 |
} else {
|
|
|
379 |
ss.appendChild(doc.createTextNode(css));
|
|
|
380 |
}
|
|
|
381 |
//push to appendedEls to track for later removal
|
|
|
382 |
appendedEls.push(ss);
|
|
|
383 |
}
|
|
|
384 |
}
|
|
|
385 |
},
|
|
|
386 |
//find media blocks in css text, convert to style blocks
|
|
|
387 |
translate = function (styles, href, media) {
|
|
|
388 |
var qs = styles.replace(respond.regex.comments, "")
|
|
|
389 |
.replace(respond.regex.keyframes, "")
|
|
|
390 |
.match(respond.regex.media),
|
|
|
391 |
ql = qs && qs.length || 0;
|
|
|
392 |
//try to get CSS path
|
|
|
393 |
href = href.substring(0, href.lastIndexOf("/"));
|
|
|
394 |
var repUrls = function (css) {
|
|
|
395 |
return css.replace(respond.regex.urls, "$1" + href + "$2$3");
|
|
|
396 |
}, useMedia = !ql && media;
|
|
|
397 |
//if path exists, tack on trailing slash
|
|
|
398 |
if (href.length) {
|
|
|
399 |
href += "/";
|
|
|
400 |
}
|
|
|
401 |
//if no internal queries exist, but media attr does, use that
|
|
|
402 |
//note: this currently lacks support for situations where a media attr is specified on a link AND
|
|
|
403 |
//its associated stylesheet has internal CSS media queries.
|
|
|
404 |
//In those cases, the media attribute will currently be ignored.
|
|
|
405 |
if (useMedia) {
|
|
|
406 |
ql = 1;
|
|
|
407 |
}
|
|
|
408 |
for (var i = 0; i < ql; i++) {
|
|
|
409 |
var fullq, thisq, eachq, eql;
|
|
|
410 |
//media attr
|
|
|
411 |
if (useMedia) {
|
|
|
412 |
fullq = media;
|
|
|
413 |
rules.push(repUrls(styles));
|
|
|
414 |
//parse for styles
|
|
|
415 |
} else {
|
|
|
416 |
fullq = qs[i].match(respond.regex.findStyles) && RegExp.$1;
|
|
|
417 |
rules.push(RegExp.$2 && repUrls(RegExp.$2));
|
|
|
418 |
}
|
|
|
419 |
eachq = fullq.split(",");
|
|
|
420 |
eql = eachq.length;
|
|
|
421 |
for (var j = 0; j < eql; j++) {
|
|
|
422 |
thisq = eachq[j];
|
|
|
423 |
if (isUnsupportedMediaQuery(thisq)) {
|
|
|
424 |
continue;
|
|
|
425 |
}
|
|
|
426 |
mediastyles.push({
|
|
|
427 |
media: thisq.split("(")[0].match(respond.regex.only) && RegExp.$2 || "all",
|
|
|
428 |
rules: rules.length - 1,
|
|
|
429 |
hasquery: thisq.indexOf("(") > -1,
|
|
|
430 |
minw: thisq.match(respond.regex.minw) && parseFloat(RegExp.$1) + (RegExp.$2 || ""),
|
|
|
431 |
maxw: thisq.match(respond.regex.maxw) && parseFloat(RegExp.$1) + (RegExp.$2 || "")
|
|
|
432 |
});
|
|
|
433 |
}
|
|
|
434 |
}
|
|
|
435 |
applyMedia();
|
|
|
436 |
},
|
|
|
437 |
|
|
|
438 |
//recurse through request queue, get css text
|
|
|
439 |
makeRequests = function () {
|
|
|
440 |
if (requestQueue.length) {
|
|
|
441 |
var thisRequest = requestQueue.shift();
|
|
|
442 |
ajax(thisRequest.href, function (styles) {
|
|
|
443 |
translate(styles, thisRequest.href, thisRequest.media);
|
|
|
444 |
parsedSheets[thisRequest.href] = true;
|
|
|
445 |
// by wrapping recursive function call in setTimeout
|
|
|
446 |
// we prevent "Stack overflow" error in IE7
|
|
|
447 |
w.setTimeout(function () {
|
|
|
448 |
makeRequests();
|
|
|
449 |
}, 0);
|
|
|
450 |
});
|
|
|
451 |
} else {
|
|
|
452 |
respond.callback();
|
|
|
453 |
}
|
|
|
454 |
},
|
|
|
455 |
|
|
|
456 |
//loop stylesheets, send text content to translate
|
|
|
457 |
ripCSS = function () {
|
|
|
458 |
for (var i = 0; i < links.length; i++) {
|
|
|
459 |
var sheet = links[i],
|
|
|
460 |
href = sheet.href,
|
|
|
461 |
media = sheet.media,
|
|
|
462 |
isCSS = sheet.rel && sheet.rel.toLowerCase() === "stylesheet";
|
|
|
463 |
//only links plz and prevent re-parsing
|
|
|
464 |
if (!!href && isCSS && !parsedSheets[href]) {
|
|
|
465 |
// selectivizr exposes css through the rawCssText expando
|
|
|
466 |
if (sheet.styleSheet && sheet.styleSheet.rawCssText) {
|
|
|
467 |
translate(sheet.styleSheet.rawCssText, href, media);
|
|
|
468 |
parsedSheets[href] = true;
|
|
|
469 |
} else {
|
|
|
470 |
if (!/^([a-zA-Z:]*\/\/)/.test(href) && !base ||
|
|
|
471 |
href.replace(RegExp.$1, "").split("/")[0] === w.location.host) {
|
|
|
472 |
// IE7 doesn't handle urls that start with '//' for ajax request
|
|
|
473 |
// manually add in the protocol
|
|
|
474 |
if (href.substring(0, 2) === "//") {
|
|
|
475 |
href = w.location.protocol + href;
|
|
|
476 |
}
|
|
|
477 |
requestQueue.push({
|
|
|
478 |
href: href,
|
|
|
479 |
media: media
|
|
|
480 |
});
|
|
|
481 |
}
|
|
|
482 |
}
|
|
|
483 |
}
|
|
|
484 |
}
|
|
|
485 |
makeRequests();
|
|
|
486 |
};
|
|
|
487 |
//translate CSS
|
|
|
488 |
ripCSS();
|
|
|
489 |
|
|
|
490 |
//expose update for re-running respond later on
|
|
|
491 |
respond.update = ripCSS;
|
|
|
492 |
|
|
|
493 |
//expose getEmValue
|
|
|
494 |
respond.getEmValue = getEmValue;
|
|
|
495 |
|
|
|
496 |
//adjust on resize
|
|
|
497 |
function callMedia() {
|
|
|
498 |
applyMedia(true);
|
|
|
499 |
}
|
|
|
500 |
|
|
|
501 |
if (w.addEventListener) {
|
|
|
502 |
w.addEventListener("resize", callMedia, false);
|
|
|
503 |
}
|
|
|
504 |
else if (w.attachEvent) {
|
|
|
505 |
w.attachEvent("onresize", callMedia);
|
|
|
506 |
}
|
|
|
507 |
})(this);
|