Sending information to the content script for a context-menu

Question

I\'ve seen many questions regarding context-menu and two-way communication and it appears that I know the answer to my question... \"you can\'t\", but I\'m going to try any

Answer 1

Thank you to Wladimir! The following code does what I want it to:

In the main.js for the context-menu:

myAppContextMenu = contextMenu.Item({
    label: "Translate Selection",
    context: contextMenu.SelectionContext(),
    contentScriptFile : [self.data.url('jquery-1.7.2.min.js'), self.data.url('myAppcontextmenu.js')],
    onMessage: function (data) {
        var text = require('selection').text;
        require('request')
            .Request({
                url: 'http://api.microsofttranslator.com/V2/Ajax.svc/Translate',
                content: {
                    appid : 'myappid',
                    to : data.to,
                    from : data.from,
                    text : text
                },
                onComplete: function (response) {
                    var index,
                        tabs = require('sdk/tabs');

                    for (index = 0; index < workers.length; index += 1) {
                        if (workers[index].tab === tabs.activeTab) {
                            workers[index].port.emit('selectionTranslation', { text: text, response : response.text, leftOffset : data.leftOffset, topOffset : data.topOffset });
                        }
                    }
                }
            })
            .get();
    }
});

and in the content script:

self.on(
    'click',
    function (node, data) {
        'use strict';
        var selectedElement = $(node),
            messageData =
                {
                    to : 'es',
                    from : 'en',
                    topOffset : selectedElement.offset().top + (selectedElement.height() / 2),
                    leftOffset : selectedElement.offset().left + (selectedElement.width() / 2)
                };

        self.postMessage(messageData);
    }
);

There is a global workers array variable defined in the exports.main function that gets populated by the onAttach function of the page mod as so:

        workers.push(worker);

        worker.on(
            'detach',
            function () {
                var index = workers.indexOf(worker);
                if (index >= 0) {
                    workers.splice(index, 1);
                }
            }
        );