将事件侦听器添加到iframe中 [英] Adding an event listener to an iframe
问题描述
可以向iframe添加事件监听器吗?我已经尝试过这个代码,但似乎不起作用:
Is it possible to add an event listener to an iframe? I've tried this code, but it doesn't seem to work:
document.getElementsByTagName('iframe')[0].contentWindow.window.document.body.addEventListener('afterLayout', function(){
console.log('works');
});
我刚刚尝试使用通过id获取元素,并通过JavaScript框架添加我的监听器'm using,like this:
I've also just tried using getting the element by id and adding my listener via the JavaScript framework I'm using, like this:
Ext.fly("iframeID").addListener('afterLayout', function(){ alert('test'); });
我可以调用iframe中的函数,所以我不认为安全是一个问题。有任何想法吗?
I can call functions in the iframe, so I don't think security is an issue. Any ideas?
推荐答案
我从来没有尝试处理'afterLayout'事件,但是更多的浏览器兼容代码
你会使用( iframe.contentWindow || iframe.contentDocument
)而不是 iframe.contentWindow
。
I never tried to handle 'afterLayout' event but for more browser compatible code
you'll use (iframe.contentWindow || iframe.contentDocument
) instead of iframe.contentWindow
.
尝试像
var iframe = document.getElementsByTagName('iframe')[0],
iDoc = iframe.contentWindow // sometimes glamorous naming of variable
|| iframe.contentDocument; // makes your code working :)
if (iDoc.document) {
iDoc = iDoc.document;
iDoc.body.addEventListener('afterLayout', function(){
console.log('works');
});
};
希望会有所帮助。
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