但更進一步的應用,可能需要了解使用者到底是按ok還是cancel!!
找到以下這篇所用到的解法,有需要的人可以參考看看。
Way to know if user clicked Cancel on a Javascript onbeforeunload Dialog?
The code within the first
setTimeout
method has a delay of 1ms. This is just to add the function into the UI queue
. Since setTimeout
runs asynchronously the Javascript interpreter will continue by directly calling thereturn
statement, which in turn triggers the browsers modal dialog
. This will block the UI queue
and the code from the first setTimeout
is not executed, until the modal is closed. If the user pressed cancel, it will trigger another setTimeout which fires in about one second. If the user confirmed with ok, the user will redirect and the second setTimeout is never fired.$(function(){ $(window).bind("beforeunload", function(e) { setTimeout(function() { setTimeout(function() { $("body").css('background-color', 'red').html("User click cancel button"); }, 1000); },1); return 'are you sure'; }); //按ok處理 $(window).unload( function () { console.log('bye bye :)'); } ); });
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