在多个窗口帮助Firefox扩展 [英] help with Firefox extension in multiple windows

问题描述

我正在写一个Firefox扩展，创建一个套接字服务器，当客户端连接到它时，它将输出活动标签的URL。我的JavaScript文件中有以下代码：

I'm writing a Firefox extension that creates a socket server which will output the active tab's URL when a client makes a connection to it. I have the following code in my javascript file:

var serverSocket;

function startServer()
{
    var listener =
    {
        onSocketAccepted : function(socket, transport)
        {
            try {
                var outputString = gBrowser.currentURI.spec + "\n";
                var stream = transport.openOutputStream(0,0,0);
                stream.write(outputString,outputString.length);
                stream.close();
            } catch(ex2){ dump("::"+ex2); }
        },

        onStopListening : function(socket, status){}
    };

    try {
        serverSocket = Components.classes["@mozilla.org/network/server-socket;1"]
        .createInstance(Components.interfaces.nsIServerSocket);

        serverSocket.init(7055,true,-1);
        serverSocket.asyncListen(listener);
   } catch(ex){ dump(ex); }

   document.getElementById("status").value = "Started";
}



function stopServer ()
{
    if (serverSocket) 
    serverSocket.close();
}

window.addEventListener("load", function() { startServer(); }, false);
window.addEventListener("unload", function() { stopServer(); }, false);

实际上，它适用于单个窗口中的多个选项卡。如果我打开多个窗口，它会忽略其他窗口。我认为它是为每个窗口创建一个服务器套接字，但由于它们使用相同的端口，所以额外的套接字无法初始化。我需要它在浏览器启动时创建服务器套接字，并在关闭窗口（Mac OS X）时继续运行。事实上，当我关闭一个窗口，但Firefox仍然运行，套接字关闭，我不得不重新启动Firefox来启动它的运行。如何解决这个问题？

As it is, it works for multiple tabs in a single window. If I open multiple windows, it ignores the additional windows. I think it is creating a server socket for each window, but since they are using the same port, the additional sockets fail to initialize. I need it to create a server socket when the browser launches and continue running when I close the windows (Mac OS X). As it is, when I close a window but Firefox remains running, the socket closes and I have to restart firefox to get it up an running. How do I go about that?

推荐答案

您可能想要：

You probably want to:

1. 将您的代码移动到JavaScript组件中


2. 将组件注册为更改后的配置文件 观察者


3. 每当有人连接到您的套接字，找到活动窗口并返回它的URL。
   

1. Move your code into a JavaScript component
2. Register your component as a profile-after-change observer
3. Whenever someone makes a connection to your socket, find the active window and return its URL.

使用类似于

Use something like

var wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]
                   .getService(Components.interfaces.nsIWindowMediator);
var win = wm.getMostRecentWindow("navigator:browser");
var spec = win ? win.getBrowser().currentURI.spec : "";
var outputString = spec + "\n";

等。

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