Question

您好我正在考虑在JavaScript中创建一个确认菜单，它将运行一组代码，具体取决于您选择是或否。

现在我希望它发生在window.onbeforeunload事件上但是只有当个人按下是的时我才想要其余的代码才能工作，如果他们按下否，我希望window.onbeforeunload完全取消。我想知道它是否有可能以及如何。这是我到目前为止所拥有的。我想要这个的原因是因为当我运行脚本时弹出窗口会在返回时显示，但在有人选择留下或离开之前。点击（）;功能启动删除信息。我想要.click（）;在有人在返回时按下是并且仅在他们按下是的时候启动。

var validNavigation = false;

function wireUpEvents() {

var dont_confirm_leave = 0; 
var leave_message = document.getElementById("kioskform:broswerCloseSubmit");
var leave_safari = document.getElementById("kioskform:broswerCloseSafari");
      function goodbye(e) {
       if (!validNavigation) {
function disp_confirm()
{
var leaveMessage=confirm("Are you sure you want to leave")
if (leaveMessage==true)
{          if (dont_confirm_leave!==1) {
        if(!e) e = window.event;
        //for IE
        e.cancelBubble = true;
        e.returnValue = leave_message.click();
        //e.stopPropagation works in Firefox.
        if (e.stopPropagation) {
          e.stopPropagation();
          e.preventDefault();
        }
        //return works for Chrome and Safari
         leave_safari.click();
         return '';

        //add the code to delete the kiosk information here.
        // this is what is to be done.
      }
    }

   else 
{
Alert("Returning to the page.")
}
  }
  window.onbeforeunload=goodbye;

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

  // Attach the event click for all links in the page
  jQuery("a").bind("click", function() {
    validNavigation = true;
  });

  // Attach the event submit for all forms in the page
 jQuery("form").bind("submit", function() {
    validNavigation = true;
  });

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

}

// Wire up the events as soon as the DOM tree is ready
jQuery(document).ready(function() {
  wireUpEvents();
});

Answer 1

为什么不使用window.confirm？

JS中的确认弹出窗口

1 个答案: