[英]Call parent Javascript function from inside an iframe
I have a iframe (in my domain), that iframe has a file iframe.js
. 我有一个iframe(在我的域中),iframe有一个文件
iframe.js
。
My parent document has a file parent.js
. 我的父文档有一个文件
parent.js
。
I need to call a function that is in parent.js
, from a function that is in iframe.js
. 我需要调用一个函数,在
parent.js
,从一个函数,在iframe.js
。
I tried doing window.parent.myfunction()
this function is in the parent.js
file. 我试过做
window.parent.myfunction()
这个函数在parent.js
文件中。
But, it didn't work. 但是,它没有用。 Only when I put the function on the parent page (I mean in the HTML), then it worked.
只有当我把这个函数放在父页面上时(我的意思是在HTML中),它才有效。
Any idea how to get this to work? 知道如何让这个工作吗?
Try just parent.myfunction()
. 试试
parent.myfunction()
。 Also be 100% sure that the parent.js is included in your parent document. 还要100%确定parent.js包含在父文档中。
I know this is an old question, but in case the accepted answer doesn't work (it didn't work for me) you could do this inside parent.js 我知道这是一个老问题,但如果接受的答案不起作用(它对我不起作用)你可以在parent.js中做到这一点
window.myfunction = function () {
alert("I was called from a child iframe");
}
Now from the iframe you can call myfunction() like you initially wanted 现在从iframe你可以像你最初想要的那样调用myfunction()
window.parent.myfunction();
Window.postMessage()
method safely enables cross-origin
communication. Window.postMessage()
方法安全地启用cross-origin
通信。
If you have access to parent page then any data can be passed as well as any parent method can be called directly from Iframe
. 如果您可以访问父页面,则可以传递任何数据,也可以直接从
Iframe
调用任何父方法。
Parent page: 父页面:
if (window.addEventListener) {
window.addEventListener("message", onMessage, false);
} else if (window.attachEvent) {
window.attachEvent("onmessage", onMessage, false);
}
function onMessage(event) {
// Check sender origin to be trusted
if (event.origin !== "http://example.com") return;
var data = event.data;
if (typeof(window[data.func]) == "function") {
window[data.func].call(null, data.message);
}
}
// Function to be called from iframe
function parentFuncName(message) {
alert(message);
}
Iframe code: iframe代码:
window.parent.postMessage({
'func': 'parentFuncName',
'message': 'Message text from iframe.'
}, "*");
References: 参考文献:
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