How to capture the browser window close event?

Question

I want to capture the browser window/tab close event. I have tried the following with jQuery:

jQuery(window).bind(
    "beforeunload", 
    function() { 
        return confirm("Do you really want to close?") 
    }
)

But it works on form submission as well, which is not what I want. I want an event that triggers only when the user closes the window.

Answer 1

Following worked for me;

 $(window).unload(function(event) {
    if(event.clientY < 0) {
        //do whatever you want when closing the window..
    }
 });

Answer 2

Just verify...

function wopen_close(){
  var w = window.open($url, '_blank', 'width=600, height=400, scrollbars=no, status=no, resizable=no, screenx=0, screeny=0');
  w.onunload = function(){
    if (window.closed) {
       alert("window closed");
    }else{ 
       alert("just refreshed");
    }
  }
}

Answer 3

Try this also

window.onbeforeunload = function ()
{       
    if (pasteEditorChange) {
        var btn = confirm('Do You Want to Save the Changess?');
           if(btn === true ){
               SavetoEdit();//your function call
           }
           else{
                windowClose();//your function call
           }
    }  else { 
        windowClose();//your function call
    }
};

Answer 4

jQuery(window).bind(
                    "beforeunload",
                      function (e) {
                          var activeElementTagName = e.target.activeElement.tagName;
                          if (activeElementTagName != "A" && activeElementTagName != "INPUT") {
                              return "Do you really want to close?";
                          }
                      })

Answer 5

Unfortunately, whether it is a reload, new page redirect, or browser close the event will be triggered. An alternative is catch the id triggering the event and if it is form dont trigger any function and if it is not the id of the form then do what you want to do when the page closes. I am not sure if that is also possible directly and is tedious.

You can do some small things before the customer closes the tab. javascript detect browser close tab/close browser but if your list of actions are big and the tab closes before it is finished you are helpless. You can try it but with my experience donot depend on it.

window.addEventListener("beforeunload", function (e) {
  var confirmationMessage = "\o/";
  /* Do you small action code here */
  (e || window.event).returnValue = confirmationMessage; //Gecko + IE
  return confirmationMessage;                            //Webkit, Safari, Chrome
});

https://developer.mozilla.org/en-US/docs/Web/Reference/Events/beforeunload?redirectlocale=en-US&redirectslug=DOM/Mozilla_event_reference/beforeunload

Answer 6

I used Slaks answer but that wasn't working as is, since the onbeforeunload returnValue is parsed as a string and then displayed in the confirmations box of the browser. So the value true was displayed, like "true".

Just using return worked. Here is my code

var preventUnloadPrompt;
var messageBeforeUnload = "my message here - Are you sure you want to leave this page?";
//var redirectAfterPrompt = "http://www.google.co.in";
$('a').live('click', function() { preventUnloadPrompt = true; });
$('form').live('submit', function() { preventUnloadPrompt = true; });
$(window).bind("beforeunload", function(e) { 
    var rval;
    if(preventUnloadPrompt) {
        return;
    } else {
        //location.replace(redirectAfterPrompt);
        return messageBeforeUnload;
    }
    return rval;
})