firefox插件SDK-如何检索"currentTime"来自youtube.com上的youtube播放器? [英] firefox addon sdk - how to retrieve "currentTime" from youtube player on youtube.com?

问题描述

我正在使用SDK开发firefox插件.我想做什么:

I am developing a firefox addon with SDK. What I want to do:

• 如果用户使用的是youtube视频，则firefox插件会知道youtube播放器的当前位置(getCurrentTime())

我用标签页开发了它

var tabs = require("sdk/tabs");

和当标签是准备好了，我添加contentscripfiles将其与:

and when tab is ready, I added contentscripfiles to it with:

tabs.activeTab.attach({
      contentScriptFile: [data.url("jquery-1.11.1.min.js"), data.url("myscript.js")]
});

在脚本"myscript.js"中，我想访问youtube网站上的youtube播放器. 我试过了:

In the script "myscript.js" I want to access to the youtube player on the youtube site. I tried this:

var playerelement=document.getElementById("movie_player");

我得到了< embed>"来自它的DOM元素(ID为"movie_player").但是，当我想使用方法"getCurrentTime()"访问它时，会出现以下错误:

I got the "<embed>" DOM Element from it (with ID "movie_player"). But when I want to access to it with method "getCurrentTime()" there appears the following error:

Message: TypeError: document.getElementById(...).getCurrentTime is not a function

如何正确访问youtube播放器以完成此操作?

How can I access to the youtube player properly to get this stuff done?

谢谢！

推荐答案

更改

var playerelement=document.getElementById("movie_player");

到

var playerelement=document.getElementById('movie_player').wrappedJSObject;

现在可以访问getCurrentTime.

这篇关于firefox插件SDK-如何检索"currentTime"来自youtube.com上的youtube播放器?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！