uploader/progress.js

   1 function tag(name) {
   2     return document.getElementById(name);
   3 }
   4
   5 var dbg_url;
   6 function sendRequest(url,callback,postData) {
   7         var req = createXMLHTTPObject();
   8         if (!req) return;
   9         var method = (postData) ? "POST" : "GET";
  10         req.open(method,url,true);
  11         req.setRequestHeader('User-Agent','XMLHTTP/1.0');
  12         if (postData)
  13                 req.setRequestHeader('Content-type','application/x-www-form-urlencoded');
  14         dbg_url = url;
  15         req.onreadystatechange = function () {
  16                 if(req.readyState != 4) {
  17                         callback(req);
  18                         return;
  19                 }
  20                 if (req.status != 200 && req.status != 304) {
  21                         /* alert('url:' + dbg_url + '  HTTP error ' + req.status); */
  22                         progress_start_delayed();
  23                         return;
  24                 }
  25                 callback(req);
  26         }
  27         if (req.readyState == 4) return;
  28         req.send(postData);
  29 }
  30
  31 var XMLHttpFactories = [
  32         function () {return new XMLHttpRequest()},
  33         function () {return new ActiveXObject("Msxml2.XMLHTTP")},
  34         function () {return new ActiveXObject("Msxml3.XMLHTTP")},
  35         function () {return new ActiveXObject("Microsoft.XMLHTTP")}
  36 ];
  37
  38 function createXMLHTTPObject() {
  39         var xmlhttp = false;
  40         for (var i=0;i<XMLHttpFactories.length;i++) {
  41                 try {
  42                         xmlhttp = XMLHttpFactories[i]();
  43                 }
  44                 catch (e) {
  45                         continue;
  46                 }
  47                 break;
  48         }
  49         return xmlhttp;
  50 }
  51
  52
  53 function progress_start() {
  54         sendRequest('~url~', progress_update_with);
  55 }
  56
  57 function progress_start_delayed() {
  58         setTimeout(progress_start, 1500);
  59 }
  60
  61
  62 function progress_finished() {
  63         var appears;
  64         tag('wfpl_progress_header').innerHTML = 'Upload Finished';
  65         appears = tag('wfpl_upload_finished');
  66         if(appears) {
  67                 appears.style.position = 'static';
  68         }
  69         if(wfpl_upload_finished) {
  70                 wfpl_upload_finished();
  71         }
  72 }
  73
  74 function progress_update_with(rec) {
  75         length = rec.responseText.length;
  76         bar = tag('wfpl_progress_bar');
  77         bar.style.backgroundPosition = (Math.floor(length / 5) - 200) + 'px 0';
  78
  79         whole = Math.floor(length/10);
  80         pct = '' + whole + '.' + (length - (whole * 10));
  81         bar.innerHTML = pct + '%';
  82
  83         if(length == 1000) {
  84                 progress_finished();
  85         }
  86 }
  87
  88 function submitting() {
  89         if(wfpl_upload_starting) {
  90                 wfpl_upload_starting();
  91         }
  92         tag('wfpl_progress_form').style.display = 'none';
  93         tag('wfpl_progress_section').style.position = 'static';
  94         progress_start_delayed();
  95 }
  96
  97
  98
  99
 100
 101