如何收听“停止分享”点击Chrome DesktopCapture API [英] How to listen for "Stop sharing" click in Chrome DesktopCapture API

问题描述

我目前正在编写一个Chrome扩展程序，它使用的MediaStream，但MediaStream的结束属性仍然设置为 true 。

唯一的区别是我可以找到流之间（单击按钮之前和之后）是 videoTracks.readyState 设置为结束。 p>

编辑：
我还想注意用户是否关闭了之前流式传输的窗口。

解决方案

我通过在 videoTrack's onended 属性上分配EventHandler来解决此问题：

  //有人点击编辑停止共享
 stream.getVideoTracks（）[0] .onended = function（）{
 // doWhatYouNeedToDo（）; 
}; 
  

就我的编辑而言（注意到一个关闭窗口）：它也触发事件。 p>

I'm currently writing a chrome extension which uses Chrome's DesktopCapture API. I'm struggling to set a callback when someone clicks on "Stop sharing".

I tried using the onended EventHandler of the MediaStream, but the MediaStream's ended property is still set to true after clicking on the button.

The only difference I could find between the stream (before and after clicking the button) is that the videoTracks.readyState is set to ended.

Edit: I would also like to notice if the user closes the window they were streaming before.

解决方案

I solved this issue by assigning an EventHandler on the videoTrack's onended property:

  // somebody clicked on "Stop sharing"
  stream.getVideoTracks()[0].onended = function () {
    // doWhatYouNeedToDo();
  };

As far as my edit goes (noticing a closing window): it also fires the event.

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