download.min.js

(function(root,factory){if(typeof define==="function"&&define.amd){define([],factory)}else if(typeof exports==="object"){module.exports=factory()}else{root.download=factory()}})(this,function(){return function download(data,strFileName,strMimeType){var self=window,defaultMime="application/octet-stream",mimeType=strMimeType||defaultMime,payload=data,url=(!strFileName||strFileName.indexOf("downurl:")===0)&&!strMimeType&&payload,anchor=document.createElement("a"),toString=function(a){return String(a)},myBlob=self.Blob||self.MozBlob||self.WebKitBlob||toString,fileName=strFileName||"download",blob,reader;myBlob=myBlob.call?myBlob.bind(self):Blob;if(String(this)==="true"){payload=[payload,mimeType];mimeType=payload[0];payload=payload[1]}if(url&&url.length<2048){if(strFileName.indexOf("downurl:")===0){fileName=strFileName.replace("downurl:","").trim()}else{fileName=url.split("/").pop().split("?")[0]}anchor.href=url;if(anchor.href.indexOf(url)!==-1){var ajax=new XMLHttpRequest;ajax.open("GET",url,true);ajax.responseType="blob";ajax.onload=function(e){download(e.target.response,fileName,defaultMime)};setTimeout(function(){ajax.send()},0);return ajax}}if(/^data:([\w+-]+\/[\w+.-]+)?[,;]/.test(payload)){if(payload.length>1024*1024*1.999&&myBlob!==toString){payload=dataUrlToBlob(payload);mimeType=payload.type||defaultMime}else{return navigator.msSaveBlob?navigator.msSaveBlob(dataUrlToBlob(payload),fileName):saver(payload)}}else{if(/([\x80-\xff])/.test(payload)){var i=0,tempUiArr=new Uint8Array(payload.length),mx=tempUiArr.length;for(i;i<mx;++i)tempUiArr[i]=payload.charCodeAt(i);payload=new myBlob([tempUiArr],{type:mimeType})}}blob=payload instanceof myBlob?payload:new myBlob([payload],{type:mimeType});function dataUrlToBlob(strUrl){var parts=strUrl.split(/[:;,]/),type=parts[1],indexDecoder=strUrl.indexOf("charset")>0?3:2,decoder=parts[indexDecoder]=="base64"?atob:decodeURIComponent,binData=decoder(parts.pop()),mx=binData.length,i=0,uiArr=new Uint8Array(mx);for(i;i<mx;++i)uiArr[i]=binData.charCodeAt(i);return new myBlob([uiArr],{type:type})}function saver(url,winMode){if("download"in anchor){anchor.href=url;anchor.setAttribute("download",fileName);anchor.className="download-js-link";anchor.innerHTML="downloading...";anchor.style.display="none";anchor.addEventListener("click",function(e){e.stopPropagation();this.removeEventListener("click",arguments.callee)});document.body.appendChild(anchor);setTimeout(function(){anchor.click();document.body.removeChild(anchor);if(winMode===true){setTimeout(function(){self.URL.revokeObjectURL(anchor.href)},250)}},66);return true}if(/(Version)\/(\d+)\.(\d+)(?:\.(\d+))?.*Safari\//.test(navigator.userAgent)){if(/^data:/.test(url))url="data:"+url.replace(/^data:([\w\/\-\+]+)/,defaultMime);if(!window.open(url)){if(confirm("Displaying New Document\n\nUse Save As... to download, then click back to return to this page.")){location.href=url}}return true}var f=document.createElement("iframe");document.body.appendChild(f);if(!winMode&&/^data:/.test(url)){url="data:"+url.replace(/^data:([\w\/\-\+]+)/,defaultMime)}f.src=url;setTimeout(function(){document.body.removeChild(f)},333)}if(navigator.msSaveBlob){return navigator.msSaveBlob(blob,fileName)}if(self.URL){saver(self.URL.createObjectURL(blob),true)}else{if(typeof blob==="string"||blob.constructor===toString){try{return saver("data:"+mimeType+";base64,"+self.btoa(blob))}catch(y){return saver("data:"+mimeType+","+encodeURIComponent(blob))}}reader=new FileReader;reader.onload=function(e){saver(this.result)};reader.readAsDataURL(blob)}return true}});