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Only open a window if it doesnt already exist:

Posted on 2004-04-28
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Last Modified: 2008-03-17
I have a page that on the body onload calls a funtcion to open a new window. The problem is that I only want this to happen when the window doesnt already exist. Hence the if !countentWindow. This doesnt work because the script doesnt no what contentWindow is. If i use a var contentWindow, then the if statement is always not true, and the eval is always called.

Any ideas?

function createContentWindow() {
      
      winHeight = screen.availHeight;
      maxX = screen.availWidth;
      mainWidth = maxX - 260;
            
      if (!contentWindow){
      eval ("contentWindow = window.open('about:blank', 'contentWindow', 'height=" + winHeight + ", width=" + mainWidth + ", toolbar=no,location=no,status=yes,menubar=no,scrollbars=yes,resizable=yes');");
            
      
      contentWindow.moveTo(260,0);

      contentWindow.resizeTo(mainWidth, winHeight)
      contentWindow.location.href="userview.asp";
      }

}



0
Comment
Question by:MikebEdwards
  • 4
  • 2
6 Comments
 
LVL 63

Expert Comment

by:Zvonko
ID: 10937702
Check this:


function createContentWindow() {
   
    winHeight = screen.availHeight;
    maxX = screen.availWidth;
    mainWidth = maxX - 260;
         
    contentWindow = window.open('', 'contentWindow', 'height='+winHeight+',width='+mainWidth+',toolbar=no,location=no,status=yes,menubar=no,scrollbars=yes,resizable=yes');
    if(!contentWindow.document.body){
      contentWindow.location.href="userview.htm";
      contentWindow.resizeTo(mainWidth, winHeight)
      contentWindow.moveTo(260,0);
    }

}


0
 

Author Comment

by:MikebEdwards
ID: 10937946
That doesn't work because the    

contentWindow.location.href="userview.htm";

Is never reached.
0
 

Author Comment

by:MikebEdwards
ID: 10938015
This does seem to work though:

function createContentWindow() {
   
    winHeight = screen.availHeight;
    maxX = screen.availWidth;
    mainWidth = maxX - 260;
         
    contentWindow = window.open('', 'contentWindow', 'height='+winHeight+',width='+mainWidth+',toolbar=no,location=no,status=yes,menubar=no,scrollbars=yes,resizable=yes');
    if(contentWindow.location.href!='about:blank'){}
      else {
      contentWindow.location.href="userview.asp";
      contentWindow.resizeTo(mainWidth, winHeight)
      contentWindow.moveTo(260,0);
    }

}
0
Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

 
LVL 63

Expert Comment

by:Zvonko
ID: 10938120
Does this work for you:

function createContentWindow() {
   
    winHeight = screen.availHeight;
    maxX = screen.availWidth;
    mainWidth = maxX - 260;
         
    contentWindow = window.open('', 'contentWindow', 'height='+winHeight+',width='+mainWidth+',toolbar=no,location=no,status=yes,menubar=no,scrollbars=yes,resizable=yes');
    if(!contentWindow.myWindow){
      contentWindow.location.href="userview.htm";
      contentWindow.resizeTo(mainWidth, winHeight)
      contentWindow.moveTo(260,0);
      contentWindow.myWindow=true;
    }
}

0
 
LVL 63

Accepted Solution

by:
Zvonko earned 50 total points
ID: 10938162
Yea! That was the solution :-)

function createContentWindow() {
   
    winHeight = screen.availHeight;
    maxX = screen.availWidth;
    mainWidth = maxX - 260;
         
    contentWindow = window.open('', 'contentWindow', 'height='+winHeight+',width='+mainWidth+',toolbar=no,location=no,status=yes,menubar=no,scrollbars=yes,resizable=yes');
    if(contentWindow.location.href=="about:blank"){
      contentWindow.location.href="userview.htm";
      contentWindow.resizeTo(mainWidth, winHeight)
      contentWindow.moveTo(260,0);
    }
}


0
 
LVL 63

Expert Comment

by:Zvonko
ID: 10939062
Why did I get a grading B from you???
0

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Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

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