如何公开一个嵌入式Flash对象的JavaScript的接口？ [英] How to expose the JavaScript interface for an embedded Flash object?

问题描述

JavaScript和Flash Player可以通过Flash的ExternalInterface的机制进行数据交换：你注册ActionScript函数，你想成为能够从JavaScript叫

JavaScript and the Flash Player can exchange data via Flash's ExternalInterface mechanism: you register ActionScript functions that you would like to be able to be called from JavaScript.

我的问题：我怎样才能弄清楚什么是Flash对象的ActionScript函数可我从JavaScript调用（假设他们没有记录）

My question: How can I figure out what ActionScript functions of a Flash object are available for me to call from JavaScript (assuming they are not documented)?

有没有一种程序化的方式来做到这一点在JavaScript？

Is there a programatic way to do this in JavaScript?

谢谢！

推荐答案

您不能直接列举它们（他们将不会被列在for..in循环），但你可以测试明确每一个..

you can't enumerate them directly (they won't be listed in a for..in loop), but you can test for each one explicitly...

var swf = document.getElementById('theID');
alert('someMethod' in swf);  // will alert true if 'someMethod' is exposed via ExternalInterface.addCallback

如果在$（文件）称这种可能会失败。就绪或在window.onload - 的swiff必须初始化（加载和注册），公开的方法可用在所有

this might fail if called during $(document).ready or window.onload - the swiff must be 'initialized' (loaded and registered) for the exposed methods to be available at all.

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