如何检测浏览器窗口/选项卡关闭事件?

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【中文标题】如何检测浏览器窗口/选项卡关闭事件?【英文标题】:How to Detect Browser Window /Tab Close Event? 【发布时间】:2014-02-09 05:34:21 【问题描述】:

我正在尝试使用 onbeforeunload 和 Unload 功能。但它没有用。单击链接或刷新时,会触发此事件。我想要一个仅在浏览器窗口或选项卡关闭时触发的事件。该代码必须适用于所有浏览器。

我在 Masterpage 中使用以下代码。

<script type="text/jscript">

    var leaving = true;
    var isClose = false;

    function EndChatSession() 
        var request = GetRequest();
        request.open("GET", "../Chat.aspx", true);
        request.send();
    
    document.onkeydown = checkKeycode
    function checkKeycode(e) 
        var keycode;
        if (window.event)
            keycode = window.event.keyCode;
        else if (e)
            keycode = e.which;
        if (keycode == 116) 
            isClose = true;
        
    
    function somefunction() 
        isClose = true;
    
    window.onbeforeunload = function (e) 
       if (!e) e = event;
        if (leaving) 
             EndChatSession();
             e.returnValue = "Are You Sure";

        
    
    function GetRequest() 
        var xmlHttp = null;
        try 
            // Firefox, Opera 8.0+, Safari
            xmlHttp = new XMLHttpRequest();
        
        catch (e) 
            //Internet Explorer
            try 
                xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
            
            catch (e) 
                xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
            
        
        return xmlHttp;
        
</script>

在我的身体标签中:

以上代码在 IE 中有效,但在 chrome 中无效...

【问题讨论】:

【参考方案1】:

此代码可防止复选框事件。它在用户单击浏览器关闭按钮时起作用,但在单击复选框时不起作用。您可以为其他控件(texbox、radiobutton 等)修改它

    window.onbeforeunload = function () 
        return "Are you sure?";
    

    $(function () 
        $('input[type="checkbox"]').click(function () 
            window.onbeforeunload = function ()  ;
        );
    );

【讨论】:

刷新时也会调用警报。 . . .排除刷新事件的任何想法【参考方案2】:

您无法使用 javascript 检测它。

仅检测页面卸载/关闭的事件是window.onbeforeunload 和window.unload。这些事件都不能告诉您关闭页面的方式。

【讨论】:

【参考方案3】:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script type="text/javascript">
var validNavigation = false;

function wireUpEvents() 
var dont_confirm_leave = 0; //set dont_confirm_leave to 1 when you want the    user to be able to leave withou confirmation
 var leave_message = 'ServerThemes.Net Recommend BEST WEB HOSTING at new tab  window. Good things will come to you'
 function goodbye(e) 
if (!validNavigation) 
window.open("http://serverthemes.net/best-web-hosting-services","_blank");
return leave_message;



window.onbeforeunload=goodbye;

// Attach the event keypress to exclude the F5 refresh
$(document).bind('keypress', function(e) 
if (e.keyCode == 116)
  validNavigation = true;
 
 );

// Attach the event click for all links in the page
$("a").bind("click", function() 
validNavigation = true;
);
  // Attach the event submit for all forms in the page
 $("form").bind("submit", function() 
 validNavigation = true;
);

 // Attach the event click for all inputs in the page
  $("input[type=submit]").bind("click", function() 
 validNavigation = true;
 );

 

  // Wire up the events as soon as the DOM tree is ready
   $(document).ready(function() 
   wireUpEvents();
   );
   </script>

我确实在Can you use JavaScript to detect whether a user has closed a browser tab? closed a browser? or has left a browser?回答了

【讨论】:

【参考方案4】:

你也可以像下面这样。

将下面的脚本代码放在标题标签中

<script type="text/javascript" language="text/javascript"> 
function handleBrowserCloseButton(event)  
   if (($(window).width() - window.event.clientX) < 35 && window.event.clientY < 0) 
    
      //Call method by Ajax call
      alert('Browser close button clicked');    
     
 
</script>

从下面的body标签调用上面的函数

<body onbeforeunload="handleBrowserCloseButton(event);">

谢谢

【讨论】:

【参考方案5】:

为了区分刷新和关闭的选项卡或导航器,这是我修复它的方法:

<script>
    function endSession() 
         // Browser or Broswer tab is closed
         // Write code here
    
</script>

<body onpagehide="endSession();">

</body>

【讨论】:

您的代码不能完美地检测关闭选项卡/窗口,因为在离开页面时会触发 onpagehide。例如。通过点击链接、刷新页面、提交表单、关闭浏览器窗口等。【参考方案6】:

Solution Posted Here

经过初步研究发现,当我们关闭浏览器时,浏览器会一一关闭所有标签页,从而彻底关闭浏览器。因此,我观察到关闭标签之间的时间延迟非常小。所以我把这个时间延迟作为我的主要验证点,并能够实现浏览器和标签关闭事件的检测。

//Detect Browser or Tab Close Events
$(window).on('beforeunload',function(e) 
  e = e || window.event;
  var localStorageTime = localStorage.getItem('storagetime')
  if(localStorageTime!=null && localStorageTime!=undefined)
    var currentTime = new Date().getTime(),
        timeDifference = currentTime - localStorageTime;

    if(timeDifference<25)//Browser Closed
       localStorage.removeItem('storagetime');
    else//Browser Tab Closed
       localStorage.setItem('storagetime',new Date().getTime());
    

  else
    localStorage.setItem('storagetime',new Date().getTime());
  
);

JSFiddle Link

【讨论】:

【参考方案7】:

我的解决方案与Server Themes给出的解决方案类似。请检查一次:

localStorage.setItem("validNavigation", false);
$(document).on('keypress', function (e) 
    if (e.keyCode == 116) 
        localStorage.setItem("validNavigation", true);
    
);

// Attach the event click for all links in the page
$(document).on("click", "a", function () 
    localStorage.setItem("validNavigation", true);
);

// Attach the event submit for all forms in the page
$(document).on("submit", "form", function () 
    localStorage.setItem("validNavigation", true);
);

// Attach the event click for all inputs in the page
$(document).bind("click", "input[type=submit]", function () 
    localStorage.setItem("validNavigation", true);
);

$(document).bind("click", "button[type=submit]", function () 
    localStorage.setItem("validNavigation", true);
);
window.onbeforeunload = function (event) 

    if (localStorage.getItem("validNavigation") === "false") 
        event.returnValue = "Write something clever here..";
        console.log("Test success!");
        localStorage.setItem("validNavigation", false);
    
;

如果你在浏览器页面上正确设置了断点,那么只有在浏览器即将关闭或标签页即将关闭时,if条件才会为真。

查看此链接以供参考:https://www.oodlestechnologies.com/blogs/Capture-Browser-Or-Tab-Close-Event-Jquery-Javascript/

【讨论】:

【参考方案8】:

是的,有!经过一番头疼后,我找到了一个解决方案。

Monitor.php

这个 php 文件将监控浏览器关闭事件。一旦浏览器关闭,connection_aborted 将返回 1,因此循环将中断。

<?php
// Ignore user aborts and allow the script
// to run forever
ignore_user_abort(true);
set_time_limit(0);

echo connection_aborted();
while(1)

echo "Whatever you echo here wont be printed anywhere but it is required in order to work.";
flush();
if(connection_aborted())

break;
// Breaks only when browser is closed



/*
Action you want to take after browser is closed.
Write your code here
*/
?>

来电者.php

这是调用 Monitor.php 的文件

<?php
Header('Location: monitor.php');
?>

父.html

这将是您实际与之交互的文件。在加载时,它将直接对 Caller.php 进行 AJAX 调用,这将在后台模式下自动启动 Monitor.php。

<script>

 var xmlhttp = new XMLHttpRequest();
        xmlhttp.onreadystatechange = function() 
            if (xmlhttp.readyState == 4 && xmlhttp.status == 200) 

            
         

   xmlhttp.open("GET", "Caller.php", true);
        xmlhttp.send();   

</script>

所以最后的流程是Parent.html----->Caller.php----->Monitor.php

【讨论】:

这会在页面加载时无限运行吗?关闭窗口后,系统内存似乎已满,我的系统挂了。 这不是php问题

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