addon/widgets/widgets.js

   1 /**
   2  * @author Fabio Comuni
   3  */
   4
   5 var f9a_widget = {
   6         entrypoint : "$entrypoint",
   7         key     : "$key",
   8         widgetid: "$widget_id",
   9         xmlhttp : null,
  10
  11         getXHRObj : function(){
  12                 if (window.XMLHttpRequest) {
  13                         // code for IE7+, Firefox, Chrome, Opera, Safari
  14                         this.xmlhttp = new XMLHttpRequest();
  15                 } else {
  16                         // code for IE6, IE5
  17                         this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
  18                 }
  19         },
  20
  21         dorequest : function(args, cb) {
  22                 if (args===null) args = new Array();
  23                 args['k']=this.key;
  24                 args['s']=window.location;
  25                 var urlencodedargs = new Array();
  26                 for(k in args){ urlencodedargs.push( encodeURIComponent(k)+"="+encodeURIComponent(args[k]) ); }
  27
  28                 var url = this.entrypoint + "?"+ urlencodedargs.join("&");
  29
  30                 this.xmlhttp.open("GET", url  ,true);
  31                 this.xmlhttp.send();
  32                 this.xmlhttp.onreadystatechange=function(){
  33                   if (this.readyState==4){
  34                         if (this.status==200) {
  35                         cb(this.responseText);
  36                         } else {
  37                                 document.getElementById(f9a_widget.widgetid).innerHTML="Error loading widget.";
  38                         }
  39                   }
  40                 }
  41
  42         },
  43
  44         requestcb: function(responseText) {
  45                 document.getElementById(f9a_widget.widgetid).innerHTML=responseText;
  46         },
  47
  48         load : function (){
  49                 this.getXHRObj();
  50                 this.dorequest(null, this.requestcb);
  51         }
  52
  53 };
  54
  55 (function() {
  56         f9a_widget.load();
  57 })();
  58
  59 document.writeln("<div id='$widget_id' class='f9k_widget'>");
  60 document.writeln("<img id='$widget_id_ld' src='$loader'>");
  61 document.writeln("</div>");