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Opener/Opened window referencing

Hi all

I have 2 pages having a link to each other , a javascript code and a botton to pop window. Please see the code snippet for my js code.

When I click a button, a window is popped up.
1. If I refresh or navigate off the main page, the wpop is unaccessible.
2. If I open the link as a new window (by target=_blank or window.open or Shift+Click), the wpop in new window is unaccessible too.

I think frame can solve this problems, but there are some restrictions below.

Restrictions.
1. I do no create the main page and I cannot force the developers to use frames. If I want to use frame, I have to do something programmatically which is unable to guaratee that there is no target=_top in someone else's code.
2. The pages are not single page application. The pages must be able to refresh or navigate to other pages.

Please help.
var wpop = null;
 
function popWin()
{
  if (wpop==null || wpop=="undefined" || wpop.closed)
    wpop = window.open("popwin.html", "wpop", "height=200,width=150");
  wpop.focus();
}

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0
StingRaY
Asked:
StingRaY
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1 Solution
 
ZvonkoSystems architectCommented:
You did not state how you want to access the wpop window after opener window refresh.
But here the solution how you can regain the access to previous opened popup:

var wpop = null;
function popWin(){
  if (wpop==null || wpop=="undefined" || wpop.closed){
    if(!wpop){
      wpop = window.open("", "wpop", "height=200,width=150");
    }
    if(!wpop.document.body.innerHTML){
      wpop = window.open("popwin.html", "wpop", "height=200,width=150");
    }
  } 
  wpop.focus();
}

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0
 
StingRaYAuthor Commented:
Zvonko,

It seems working fine, but what if I close the opener and re-open it?
I've tried in ie7. The popup window is not reload nor focused. Only flashing in title bar.

Anyway, it does not work in FF. Any advice?

PS. I want to access the wpop using popWin() function only, just pop it up or access its global functions.
0
 
ZvonkoSystems architectCommented:
Check this try-catch method:
var wpop = null;
function popWin(){
  if (!wpop){
     wpop = window.open("", "wpop", "height=200,width=150");
  }
  try{
    var wBody = wpop.document.body.innerHTML;
  } catch(e){
    var wBody = "";
  }
  if(wBody==""){
    wpop = window.open("popwin.html", "wpop", "height=200,width=150");
  }
  wpop.focus();
}

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0
 
StingRaYAuthor Commented:
Zvonko

Thanks for your help. The code is working perfectly.
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