SOLVED: How to pass a function/variable-reference to XMLHttprequest-onload-event?

DH2006 · 06-06-2007, 01:26 PM

Hello!
How to pass a function- or variable-reference to the xmlhttprequest-onload-event? The function and the variable are part of an object genereated with "tempObj = new Seite(...)" .
I should add, that this will only running locally on Firefox.
The error i get in the Javascript-Console is "this.callMeFromOnLoad is not a function"

Here is an example-page:

Code:

<html>
<head>
<title>Why are the lines marked by "//<===" not working? How to pass that function call to the function onLoad?</title>
<script language="javascript" type="text/javascript">
Seite = function(fuURL,fuText) {
  this.status = 0; this.theURL = fuURL; this.myId = fuText;
  this.HTMLofURL = 'placeholder-text';
  function callMeFromOnLoad(aURL,aHTMLsource) { alert(this.myId); }
  function onLoad (e)    {
      this.HTMLofURL = e.target.responseText;  //<=== "this.HTMLofURL" will actually not be the "this.HTMLofURL" as two lines above, when called from the
                                               // XMLHttoRequest onload-event ):
      testAlert(this.theURL + "\n\n" + this.HTMLofURL);  // "this.theURL" isn't the same as the "this.theURL" from above
      this.callMeFromOnLoad(this.theURL,this.HTMLofURL); //<=== same here
  }
  this.LoadPage = function() {
    try { netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect"); } catch (e) {   alert("Permission UniversalXPConnect denied."); }
    var r = new XMLHttpRequest();
    r.onload = onLoad;
    r.open ("GET", this.theURL, true);
    r.send (null);
  }
}
function testAlert(fuText) { alert(fuText);}
function testSearch() {
  var tempObj;
  tempObj = new Seite('http://www.google.com','TestObj1');
  tempObj.LoadPage();
}
</script>
</head>
<body onLoad="testSearch();">
Hello
<pre>
How to pass a function- or variable-reference to the xmlhttprequest-onload-event? The function and the variable are part of an object genereated with "tempObj = new Seite(...)" .
Why are the lines marked by "//<===" not working? How to pass that function call to the function onLoad?
   this.HTMLofURL = e.target.responseText;  //<=== "this.HTMLofURL" will actually not be the "this.HTMLofURL" as two lines above, when called from the
                                            // XMLHttoRequest onload-event ):
   testAlert(this.theURL + "\n\n" + this.HTMLofURL);  // "this.theURL" isn't the same as the "this.theURL" from above
   this.callMeFromOnLoad(this.theURL,this.HTMLofURL); //<=== same here
</pre>
<span id="id:forFastOutput"></span>
</body></html>

A1ien51 · 06-06-2007, 03:12 PM

Code:

var req = this;
function onLoad (e)    {
      req.HTMLofURL = e.target.responseText;  
     ...
}

Eric

DH2006 · 06-06-2007, 06:53 PM

Wow! I will test it.
But I will only believe it, after i have tested it. :P

Quote:

Originally Posted by A1ien51

Code:

var req = this;
function onLoad (e)    {
      req.HTMLofURL = e.target.responseText;  
     ...
}

Eric

If this really is a solution, that would be amazing, taking into account that I used up around 1 day and crawled through different javascript-sources and forums - where I only found one thread that might contain a solution, though not directly for what i asked for.

Dieter

DH2006 · 06-06-2007, 07:09 PM

!!!! TYVM!!!!
Me nearly came some tears.
I'm not gay, but I would kiss you now, if you were in reach. :P

Quote:

Originally Posted by A1ien51

Code:

var req = this;
function onLoad (e)    {
      req.HTMLofURL = e.target.responseText;  
     ...
}

Eric