Firefox extension addon tab using background scrip

问题:

I have a firefox extension that opens up a tab with a html file that is located in my data folder. The main.js does this:

 function handleClick(state) {
   tabs.open("login.html");
  }

In main.js I require() a bunch of scripts to run as background scripts. This html file acts as the "login" for the extension. How can this html page have access to the background scripts?

回答1:

It can't. You'll need to attach a content script to your login page and to send variables to it the standard way using port.

Also, does your code work? Don't you need to require(sdk/self).data to get access to login.html?

Here's an example of what you can do.

main.js

const { data } = require('sdk/self');

function handleClick(state) {
  tabs.open({
    url: data.url('login.html'),
    onOpen: function(tab) {
      var worker = tab.attach({
        contentScriptFile: data.url('login.js')
      });
      worker.port.emit('foo', foo);
      worker.port.on('bar', handleBar);
    }
  });
}

function handleBar(bar) {
  // do something with bar;
}

login.js

self.port.on('foo', function(foo) {
  // do something with foo
});

self.port.emit('bar', bar);