JS/unused/filedownload.js

   1 function filewrite(){
   2         var ajax = getAjax();
   3         var result = document.getElementById("link");
   4
   5         if(ajax){
   6                 try{
   7                         ajax.onreadystatechange = getData;
   8                 }catch(e){
   9                         result.innerHTML = "onreadystatechange error!"
  10                 }
  11
  12                 try{
  13                         ajax.open("GET","//localhost:8000/images/"+document.cameracontrol.input.value+".tif",true);
  14                         ajax.responseType = 'blob'
  15                 }catch(e){
  16                         result.innerHTML = "ajax open error!";
  17                 }
  18
  19                 try{
  20                         ajax.send(null);
  21                 }catch(e){
  22                         result.innerHTML = "send error!";
  23                 }
  24         }else{
  25                 result.innerHTML = "you cannot use ajax...";
  26         }
  27
  28         function getData(){
  29                 if(ajax.readyState == 4){
  30                         if(ajax.status == 200){
  31         var url = window.URL.createObjectURL(this.response)
  32                 dl_name = document.cameracontrol.dlname.value+"_"+document.cameracontrol.mode.value;
  33         result.innerHTML = '<a href="'+url+'" download='+dl_name+'>download_link</a>';
  34                         }else{
  35         result.innerHTML = "HTTP error!";
  36                         }
  37                 }else{
  38                         result.innerHTML = "HTTP Transmission!";
  39                 }
  40         }
  41
  42 }
  43