谷歌不想被内化（XPCOM）

发布于 2024-08-01 18:48:00 字数 1183 浏览 7 评论 0原文

我正在尝试制作一个 Firefox 扩展。为什么当我想使用 document.body.innerHTML = data; 时在新打开的选项卡中，它不起作用。这是我的代码：

function change() {


//Open google in new Tab and select it
tab=gBrowser.addTab("http://www.google.com");
gBrowser.selectedTab=tab;

//Create nslFile object
var path="/home/foo/notify.txt"
var file = Components.classes["@mozilla.org/file/local;1"].createInstance(Components.interfaces.nsILocalFile);
    file.initWithPath(path);

//Put file content into data variable
var data = "";
var fstream = Components.classes["@mozilla.org/network/file-input-stream;1"].
                        createInstance(Components.interfaces.nsIFileInputStream);
var cstream = Components.classes["@mozilla.org/intl/converter-input-stream;1"].
                        createInstance(Components.interfaces.nsIConverterInputStream);
fstream.init(file, -1, 0, 0);
cstream.init(fstream, "UTF-8", 0, 0); // you can use another encoding here if you wish

let (str = {}) {
  cstream.readString(-1, str); // read the whole file and put it in str.value
  data = str.value;
}
cstream.close(); // this closes fstream



//change content of google page by file content
document.body.innerHTML = data;

}

原文

I'm trying to make an firefox extension. Why when I want to use document.body.innerHTML = data; in new opened tab, it doesn't work. Here is my code:

function change() {


//Open google in new Tab and select it
tab=gBrowser.addTab("http://www.google.com");
gBrowser.selectedTab=tab;

//Create nslFile object
var path="/home/foo/notify.txt"
var file = Components.classes["@mozilla.org/file/local;1"].createInstance(Components.interfaces.nsILocalFile);
    file.initWithPath(path);

//Put file content into data variable
var data = "";
var fstream = Components.classes["@mozilla.org/network/file-input-stream;1"].
                        createInstance(Components.interfaces.nsIFileInputStream);
var cstream = Components.classes["@mozilla.org/intl/converter-input-stream;1"].
                        createInstance(Components.interfaces.nsIConverterInputStream);
fstream.init(file, -1, 0, 0);
cstream.init(fstream, "UTF-8", 0, 0); // you can use another encoding here if you wish

let (str = {}) {
  cstream.readString(-1, str); // read the whole file and put it in str.value
  data = str.value;
}
cstream.close(); // this closes fstream



//change content of google page by file content
document.body.innerHTML = data;

}

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放我走吧 2024-08-08 18:48:00

您正在尝试更改内容文档，对吗？给定您的代码，document 指向 XUL 窗口（或您的情况下的浏览器），因此您正在尝试更改它。您应该会收到有关访问它的 body 的错误，因为它不存在。（确保您已启用 Chrome 错误。）您真正想要的是 内容.document.body.innerHTML。