确定在Firefox Addon SDK中提出请求的选项卡 [英] Identify tab that made request in Firefox Addon SDK

问题描述

我使用 Firefox Addon SDK 来构建监视器并在浏览器中显示HTTP流量。与 HTTPFox 或 Live HTTP Headers 。我感兴趣的是确定浏览器中的哪个标签（如果有的话）生成了请求

使用 observer-service 我正在监视http-on-examine-response 事件。我有类似于下面的代码来识别生成请求的nsIDomWindow：

$ $ $ $ $ $ $ $ $ $ $ const observer = require（observer - 服务），
{Ci} = require（chrome）;

函数getTabFromChannel（频道）{
尝试{
var noteCB = channel.notificationCallbacks？ channel.notificationCallbacks：channel.loadGroup.notificationCallbacks;

if（！noteCB）{return null; }

var domWin = noteCB.getInterface（Ci.nsIDOMWindow）;
返回domWin.top;
} catch（e）{
dump（e +\\\
）;
返回null;



函数logHTTPTraffic（sub，data）{
sub.QueryInterface（Ci.nsIHttpChannel）;
var ab = getTabFromChannel（sub）;
console.log（tab）;
}

observer.add（http-on-examine-response，logHTTPTraffic）;

大多是从有关如何识别生成请求的浏览器的文档。有些也取自

是否有建议或首选的方式从 nsIDOMWindow object domWin 添加到 SDK选项卡模块？ p>

我曾经考虑过这样一个hacky，就像扫描一个带有与domWin的URL匹配的URL的选项卡列表，但是我不得不担心具有相同URL的多个选项卡。

解决方案

您必须继续使用内部软件包。从我所知道的， getTabForWindow（）函数在 api-utils / lib / tabs / tab.js package does正是你想要的。未经测试的代码：

  var tabsLib = require（sdk / tabs / tab.js）; 
返回tabsLib.getTabForWindow（domWin.top）; 
  

I'm using the Firefox Addon SDK to build something that monitors and displays the HTTP traffic in the browser. Similar to HTTPFox or Live HTTP Headers. I am interested in identifying which tab in the browser (if any) generated the request

Using the observer-service I am monitoring for "http-on-examine-response" events. I have code like the following to identify the nsIDomWindow that generated the request:

const observer = require("observer-service"),
    {Ci} = require("chrome");

function getTabFromChannel(channel) {
    try {
        var noteCB= channel.notificationCallbacks ? channel.notificationCallbacks : channel.loadGroup.notificationCallbacks;

        if (!noteCB) { return null; }

        var domWin = noteCB.getInterface(Ci.nsIDOMWindow);
        return domWin.top;
    } catch (e) {
        dump(e + "\n");
        return null;
    }
}

function logHTTPTraffic(sub, data) {
    sub.QueryInterface(Ci.nsIHttpChannel);
    var ab = getTabFromChannel(sub);
    console.log(tab);
}

observer.add("http-on-examine-response", logHTTPTraffic);

Mostly cribbed from the documentation for how to identify the browser that generated the request. Some is also taken from the Google PageSpeed Firefox addon.

Is there a recommended or preferred way to go from the nsIDOMWindow object domWin to a tab element in the SDK tabs module?

I've considered something hacky like scanning the tabs list for one with a URL that matches the URL for domWin, but then I have to worry about multiple tabs having the same URL.

解决方案

You have to keep using the internal packages. From what I can tell, getTabForWindow() function in api-utils/lib/tabs/tab.js package does exactly what you want. Untested code:

var tabsLib = require("sdk/tabs/tab.js");
return tabsLib.getTabForWindow(domWin.top);

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