manup.min.js

var manUpObject,tagArray=[],linkArray=[],validMetaValues=[{name:"mobile-web-app-capable",manifestName:"display"},{name:"apple-mobile-web-app-capable",manifestName:"display"},{name:"apple-mobile-web-app-title",manifestName:"short_name"},{name:"application-name",manifestName:"short_name"},{name:"msapplication-TileColor",manifestName:"ms_TileColor"},{name:"msapplication-square70x70logo",manifestName:"icons",imageSize:"70x70"},{name:"msapplication-square150x150logo",manifestName:"icons",imageSize:"150x150"},{name:"msapplication-wide310x150logo",manifestName:"icons",imageSize:"310x150"},{name:"msapplication-square310x310logo",manifestName:"icons",imageSize:"310x310"}],validLinkValues=[{name:"apple-touch-icon",manifestName:"icons",imageSize:"152x152"},{name:"apple-touch-icon",manifestName:"icons",imageSize:"120x120"},{name:"apple-touch-icon",manifestName:"icons",imageSize:"76x76"},{name:"apple-touch-icon",manifestName:"icons",imageSize:"60x60"},{name:"apple-touch-icon",manifestName:"icons",imageSize:"57x57"},{name:"apple-touch-icon",manifestName:"icons",imageSize:"72x72"},{name:"apple-touch-icon",manifestName:"icons",imageSize:"114x114"},{name:"icon",manifestName:"icons",imageSize:"128x128"},{name:"icon",manifestName:"icons",imageSize:"192x192"}],generateFullMetaData=function(){for(var e=0;e<validMetaValues.length;e++)if(manUpObject[validMetaValues[e].manifestName])if("icons"==validMetaValues[e].manifestName)for(var a=manUpObject.icons,n=0;n<a.length;n++)a[n].sizes==validMetaValues[e].imageSize&&(validMetaValues[e].content=a[n].src);else validMetaValues[e].content=manUpObject[validMetaValues[e].manifestName],"display"==validMetaValues[e].manifestName&&"standalone"==manUpObject.display&&(validMetaValues[e].content="yes");return validMetaValues},generateFullLinkData=function(){for(var e=0;e<validLinkValues.length;e++)if(manUpObject[validLinkValues[e].manifestName])if("icons"==validLinkValues[e].manifestName)for(var a=manUpObject.icons,n=0;n<a.length;n++)a[n].sizes==validLinkValues[e].imageSize&&(validLinkValues[e].content=a[n].src);else validLinkValues[e].content=manUpObject[validLinkValues[e].manifestName];return validLinkValues},generateMetaArray=function(){for(var e=generateFullMetaData(),a=document.getElementsByTagName("head")[0],n=0;n<e.length;n++){var i=document.createElement("meta");i.name=e[n].name,i.content=e[n].content,a.appendChild(i)}},generateLinkArray=function(){for(var e=generateFullLinkData(),a=document.getElementsByTagName("head")[0],n=0;n<e.length;n++){var i=document.createElement("link");i.setAttribute("rel",e[n].name),i.setAttribute("sizes",e[n].imageSize),i.setAttribute("href",e[n].content),a.appendChild(i)}},generateObj=function(e){manUpObject=JSON.parse(e),generateLinkArray(),generateMetaArray()},makeAjax=function(e){if(window.XMLHttpRequest){var a,n=/^https?:\/\//i;n.test(e)?fulURL=e:a=window.location.hostname+e;var i=new XMLHttpRequest;i.onreadystatechange=function(){4==i.readyState&&200==i.status&&generateObj(i.responseText)},i.open("GET",e,!0),i.send()}},collectManifestObj=function(){for(var e=document.getElementsByTagName("link"),a=0;a<e.length;a++)e[a].rel&&"manifest"==e[a].rel&&makeAjax(e[a].href)},testForManifest=function(){collectManifestObj()}();