Question

I need to differentiate between user driven close of a popup window using X close button and close through code.

var win= window.showModelessDialog("http://localhost/test/test.aspx",'google,....);
//Some manipulations            
//Manipulation ends
if(win!=null && win.open)
{
 win.close();
}

Now I have full access over test.aspx and test.aspx.cs.I have a onbeforeunload method defined in test.aspx page which will be called either way I close the window(X close or my code gets executed)I basically want to differentiate my X close and programmatic close so that I can do some backend manipulations

Answer 1

Something like this perhaps:

var MyPopup = {

  _win : null,

  _userClosingWindow : true,

  open : function() {
    var _this = this;
    this._win = window.open(...);
    this._win.onbeforeunload = function() {
      if( _this._userClosingWindow ) {
         // closed by user
      }
      else {
        // closed in code
      }
    };
  },

  close : function() {
    this._userClosingWindow = false;
    this._win.close();
  }

};

Then you can use MyPopup.open() and MyPopup.close() and still know when the close function is called or when the popup is closed by the user.