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HTML Pages with CSS and JavaScript

How to capture close[X] function in javascript?

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posted 13 years ago

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Dear All...
i have a problem with closing up the IE window close button....
i am trying to run some script/command (updating some user status in database) when the user tried to close the windows close[x] button....

i have search for the internet and found out there is "onUnload" method which can be put on the HTML body tag. but i have found that this method has some weaknesses,such as when the page is refresing or when the user press F5, this unload event will also be called....(in other word, i only want the onUnload even is called when the user try to log off or close the windows by clicking the windows button)..

so i wonder whether there is any script/method can reliably capture the windows close[x] button to run certain code/commands before the windows is closing....

Eric Pascarello

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Posts: 15385

posted 13 years ago

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If you search the forum, you will see that this has been asked 100's of times and there is no reliable way to determine what causes the page to unload.

Eric

Rafael Monteiro Dourado

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Posts: 9

posted 13 years ago

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Well i think that you should do an ajax request to update that user status with setInterval .

Web Programmer
http://rafaelmd.com.br

Eric Pascarello

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posted 13 years ago

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Rafael Monteiro Dourado wrote:Well i think that you should do an ajax request to update that user status with setInterval .

And you want to take down the users server as it gets hammered with requests?

Eric

Rafael Monteiro Dourado

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posted 13 years ago

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Imagine a table "user" with the columns :

id | name | last_request

And with the setInterval function you update the last_resquest every minute. When the last_request of an user is smaller than current time plus one minute, that user is off .

Web Programmer
http://rafaelmd.com.br

Eswar Nec

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Posts: 105

posted 13 years ago

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Here i give the code for, Ideentify the close event in FrieFox and IE.

Main Page

newWindow.jsp

function doUnload()
            {                    
                if(navigator.userAgent.toLowerCase().indexOf("firefox") > 0)
                {
                    var winWidth = document.body.clientWidth;
                    var winHeight = document.body.clientHeight;                   
                    if ((winWidth <= 0) || (winHeight <= 0) || (winWidth <= -80))
                    {
                      alert("Child Tab or window  is closing in FF");                        
                    }
                }

if(navigator.appName == "Microsoft Internet Explorer")
                {
                    if ((window.event.clientX < 0) || (window.event.clientY < 0) || (window.event.clientX < -80))
                    {
                        alert("child tab or window is closing in IE");                        
                    }
                }                                       
            }

</script>
</head>
<body onunload="doUnload()">   
    <h1>This is Chile Page.</h1>
</body>
</html>

Wake up! Don't let your smile be snatched away by anybody!
Regards, Eswar

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