我正在为我的产品开发一项功能，即用户输入网址并获得用户点击。
我尝试使用postMessage进行操作，其中用户输入url并打开新窗口并获取元素数据，但由于我滞后某处，问题仍然无法解决。
父窗口HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Admin Dashboard</title>
<script src="https://code.jquery.com/jquery-3.4.1.js" integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU="
crossorigin="anonymous">
</script>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css"
integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"
integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa"
crossorigin="anonymous"></script>
</head>
<body>
<div class="container">
<form class="form-inline">
<div class="form-group mb-2">
<label for="urllabel" class="sr-only">Enter the URL</label>
<input type="text" readonly class="form-control" id="urllabel" value="Enter the URL">
</div>
<div class="form-group mx-sm-3 mb-2">
<label for="urlinput" class="sr-only">URL</label>
<input type="text" class="form-control" id="urlinput" placeholder="https://example.com">
</div>
<button type="submit" class="btn btn-primary mb-2" id="message_button">Open page</button>
</form>
<p>Got Message:</p>
<div id="results"></div>
<br />
</div>
<script>
// addEventListener support for IE8
function bindEvent(element, eventName, eventHandler) {
if (element.addEventListener) {
element.addEventListener(eventName, eventHandler, false);
} else if (element.attachEvent) {
element.attachEvent('on' + eventName, eventHandler);
}
}
console.log('click')
// $("#message_button").click(function () {
var messageButton = document.getElementById('message_button'),
results = document.getElementById('results');
// Send a message to the child iframe
var sendMessage = function (msg) {
// Make sure you are sending a string, and to stringify JSON
console.log('msg',msg)
newWin.postMessage(msg, '*');
};
// Send random messge data on every button click
bindEvent(messageButton, 'click', function (e) {
console.log('click',e);
var url = $("#urlinput").val();
var newWin = window.open(url, '', 'location=no,toolbar=0',false);
var random = Math.random();
console.log('adsf2')
sendMessage('' + random);
return false;
});
// })
// Listen to message from child window
bindEvent(window, 'message', function (e) {
console.log(e.data)
results.innerHTML = e.data;
});
</script>
</body>
</html>
新窗口HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>iframe Window</title>
<script src="https://code.jquery.com/jquery-3.4.1.js" integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU="
crossorigin="anonymous"></script>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css"
integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"
integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa"
crossorigin="anonymous"></script>
<style>
* {
box-sizing: border-box;
}
.border {
background: rgba(0, 0, 0, 0.5);
}
</style>
</head>
<body>
<h1>Hello there, i'm an iframe</h1>
<p id="send_message">Send Message: <button id="message_button">Hi parent</button></p>
<p id="got_message">Got Message:</p>
<div id="results"></div>
<script>
// addEventListener support for IE8
function bindEvent(element, eventName, eventHandler) {
if (element.addEventListener) {
element.addEventListener(eventName, eventHandler, false);
} else if (element.attachEvent) {
element.attachEvent('on' + eventName, eventHandler);
}
}
// Send a message to the parent
var sendMessage = function (msg) {
// Make sure you are sending a string, and to stringify JSON
window.parent.postMessage(msg, '*');
};
var results = document.getElementById('results'),
messageButton = document.getElementById('message_button');
function activate() {
$(document).mouseover(function (e) {
if (!$(e.target).is('html') && !$(e.target).is('body')) {
$(e.target).addClass('border');
}
})
$(document).mouseout(function (e) {
if (!$(e.target).is('html') && !$(e.target).is('body')) {
$(e.target).removeClass('border');
}
})
//Send random message data on every button click
$(document).click(function (e) {
e.preventDefault()
if (!$(e.target).is('html') && !$(e.target).is('body')) {
$(e.target).css('border', '3px solid black');
window.addEventListener("message", function (event) {
console.log(event)
event.source.postMessage('' + `${e.target.parentElement.tagName}, ${e.target.tagName}, ${e.target.id}, ${e.target.className}, ${e.target.textContent}`, "*");
})
// window.close()
}
});
}
// Listen to messages from parent window
bindEvent(window, 'message', function (e) {
console.log('event',e)
activate()
});
// bindEvent(messageButton, 'click', function (e) {
// var random = Math.random();
// // sendMessage('' + random);
// window.addEventListener("message", function (event) {
// console.log(event)
// event.source.postMessage("" + random, "*");
// })
// });
</script>
</body>
</html>
问题是打开新窗口时没有发送消息