DirtyForms 不能在 $.blockUI 中正常工作

Question

我正在使用DirtyForms和$.blockUI插件，后者在单击链接时更改页面(在我的应用程序中，某些页面需要几秒钟才能加载，视觉反馈很好(。

当我更改字段内容然后单击任何链接时，会触发 DirtyForms：但是当我取消保留在页面上的过程时，$.blockUI开始游戏，导致页面卡住

$('form[method="post"]').dirtyForms();
$('a').on('click', function(){
	$.blockUI();
})

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.dirtyforms/2.0.0/jquery.dirtyforms.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.blockUI/2.70/jquery.blockUI.min.js"></script>
<p>Change the field content to activate DirtyForms, then click on the link.<br>
When the popup appears, click on "cancel" to stay on the page.<br>
Watch blockUI getting fired as the link is going to be followed</p>
<form action="#" method="post">
<input type="text" name="username" required>
<button type="submit">send</button>
</form>
<a href="https://google.com">click me after changing field content</a>

拜托，有什么解决方案吗？

编辑：我也尝试了stay.dirtyforms和afterstay.dirtyforms事件，但它们没有效果。defer.dirtyforms似乎有效，但事件被触发了两次(我放了一个console.log()来检查(，我不确定这是要走的路......

Answer 1

我已经编辑了我的答案：我添加了一些代码行来禁用首先从这里获取的onbeforeunload对话框警报。最后，链接到一个答案，您可以尝试另一个想法。

我的想法：您必须阻止默认链接操作并使用 $.blockUI 模式对话框方法打开自定义对话框，然后从链接中捕获链接属性href将其放入变量中，并使用变量值作为对话框的#yes按钮。

查看此解决方案是否可以满足您的需求

/* beforeunload bind and unbind taken from https://gist.github.com/woss/3c2296d9e67e9b91292d */
// call this to restore 'onbeforeunload'
var windowReloadBind = function(message) {
window.onbeforeunload = function(event) {
if (message.length === 0) {
message = '';
};

if (typeof event == 'undefined') {
event = window.event;
};
if (event) {
event.returnValue = message;
};
return message;
}
};
// call this to prevent 'onbeforeunload' dialog
var windowReloadUnBind = function() {
window.onbeforeunload = function() {
return null;
};
};
var linkToFollow; // href to follow
$('form[method="post"]').dirtyForms();
$('a').on('click', function(e){
e.preventDefault();
windowReloadUnBind(); // prevent dialog
	$.blockUI({ message: $('#question'), css: { width: '275px' } });
linkToFollow = $(this).attr('href');
});
$('#no').click(function() { 
$.unblockUI();
return false; 
});
$('#yes').click(function() { 
$(window.location).attr('href', linkToFollow); 
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.dirtyforms/2.0.0/jquery.dirtyforms.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.blockUI/2.70/jquery.blockUI.min.js"></script>
<p>Change the field content to activate DirtyForms, then click on the link.<br>
When the popup appears, click on "cancel" to stay on the page.<br>
Watch blockUI getting fired as the link is going to be followed</p>
<form action="#" method="post">
<input type="text" name="username" required>
<button type="submit">send</button>
</form>
<a href="https://google.com" class="link">click me after changing field content</a>
<div id="question" style="display:none; cursor: default"> 
<h6>Would you like to contine?.</h6> 
<input type="button" id="yes" value="Yes" /> 
<input type="button" id="no" value="No" /> 
</div>

另一个想法取自另一个答案：另一个想法是在返回值之前进行一个简单的jQuery.ajax({})调用beforeunload，如本答案所示