1 line
6.0 KiB
JavaScript
1 line
6.0 KiB
JavaScript
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(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);(function(w){"use strict";var respond={};w.respond=respond;respond.update=function(){};var requestQueue=[],xmlHttp=function(){var xmlhttpmethod=false;try{xmlhttpmethod=new w.XMLHttpRequest}catch(e){xmlhttpmethod=new w.ActiveXObject("Microsoft.XMLHTTP")}return function(){return xmlhttpmethod}}(),ajax=function(url,callback){var req=xmlHttp();if(!req){return}req.open("GET",url,true);req.onreadystatechange=function(){if(req.readyState!==4||req.status!==200&&req.status!==304){return}callback(req.responseText)};if(req.readyState===4){return}req.send(null)};respond.ajax=ajax;respond.queue=requestQueue;respond.regex={media:/@media[^\{]+\{([^\{\}]*\{[^\}\{]*\})+/gi,keyframes:/@(?:\-(?:o|moz|webkit)\-)?keyframes[^\{]+\{(?:[^\{\}]*\{[^\}\{]*\})+[^\}]*\}/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:/\([\s]*max\-width\s*:[\s]*([\s]*[0-9\.]+)(px|em)[\s]*\)/};respond.mediaQueriesSupported=w.matchMedia&&w.matchMedia("only all")!==null&&w.matchMedia("only all").matches;if(respond.mediaQueriesSupported){return}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,eminpx,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"}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)}docElem.style.fontSize=originalHTMLFontSize;if(originalBodyFontSize){body.style.fontSize=originalBodyFontSize}ret=eminpx=parseFloat(ret);return ret},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();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(!thisstyle.hasquery||(!minnull||!maxnull)&&(minnull||currWidth>=min)&&(maxnull||currWidth<=max)){if(!styleBlocks[thisstyle.media]){styleBlocks[thisstyle.media]=[]}styleBlocks[thisstyle.media].push(rules[thisstyle.rules])}}}for(var j in appendedEls){if(appendedEls.hasOwnProperty(j)){if(appendedEls[j]&&appendedEls[j].parentNode===head){head.removeChild(appendedEls[j])}}}appendedEls.length=0;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;head.insertBefore(ss,lastLink.nextSibling);if(ss.styleSheet){ss.styleSheet.cssText=css}else{ss.app
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