检测基于Web的邮件客户端与本地邮件客户端的邮件链接 [英] Detecting web-based mail client vs local mail client for a mailto link
问题描述
我有一个Web应用程序，用户可以通过该应用程序使用mailto链接发送电子邮件。基本上，我连接一个包含主题，正文和收件人的字符串，然后代码触发mailto，有点像这样：
I have a web application from which the user can send an email using a mailto link. Basically, I concatenate a string that contains the subject, body and recipients and then the code triggers a mailto, somewhat like this:
var MailToLink = 'mailto:' + TheEmailString;
window.open(MailToLink, '_blank'); //option 1
window.open(MailToLink); //option 2
最初，我只有选项2，因为在我的开发机器上我有Outlook。但是当我开始一些alpha测试时，另一个用户正在使用Gmail，并且mailto链接将在与我的应用程序相同的窗口中打开，所以我将代码更改为选项2，以便电子邮件在另一个窗口中打开。现在的问题是，当用户在Outlook上时，该链接将打开一个Outlook消息和一个新的空白窗口。
Initially, I only had option 2 because on my dev machine I have Outlook. But as I started some alpha testing, another user was using Gmail and the mailto link would open in the same window as my app so I changed my code to option 2 so that the email opens in another window. The problem now is that when the user is on Outlook, the link opens both an Outlook message and a new blank window.
有没有办法检测用户是否使用基于Web的电子邮件客户端或本地客户端？我想做这样的事情：
Is there a way to detect if the user is using a web-based email client or a local client? I would like to do something like this:
if (IsUsingWebMailClient) {
window.open(MailToLink, '_blank');
} else {
window.open(MailToLink);
}
我不知道这是否可能，但如果是这样的话很棒：如何使用javascript检测mailto客户端？
I'm not sure if this is even possible but if it is that would be great: how do I detect the mailto client using javascript?
谢谢。
推荐答案
这是一个 hack ，但是有效。超时可能会有所不同，您可以用越来越少的毫秒进行测试。
It's a bit of a hack, but that works. The time out may vary, you can test with more and less milliseconds.
<html>
<head>
<script type="text/javascript">
function mailTo(address){
var windowRef = window.open('mailto:'+address, '_blank');
var body = windowRef.document.getElementsByTagName('body')
if(!body.lenth) setTimeout(windowRef.close,300)
}
</script>
</head>
<body>
<input type="button" value="send email" onclick="mailTo('email@gmail.com')" >
</body>
</html>
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