Message passing is intended for communication between extensions and their
content scripts. Since you're only using popups and a background page, you
can communicated between them using direct javascript calls. See
http://code.google.com/chrome/extensions/extension.html#method-getBackgroundPage
-
you can call this from your popup and call methods directly on the
background page, eg:
// popup.html
chrome.extension.getBackgroundPage().popupClicked("random_test_arg");
// background.html
function popupClicked(arg) { ... }
On Wed, Nov 11, 2009 at 1:18 PM, Bartek <[email protected]> wrote:
> Hi there,
>
> I'm playing with Browser actions right now and have a popup.html file
> which contains 2 elements:
>
> - One is a button that will popup a new window using the regular
> window.open command from Javascript.
> - The second is a list of recent entries that my extension will fetch
> from the service it's for.
>
> My biggest issue right now is not fully understanding how background
> pages work with the front end of an extension. I've read the
> documentation and only half-understand the message passing that is to
> be done.
>
> Right now I have code like so in my popup.html file:
> $(document).ready(function() {
> $("#pin").click(function() {
> var q;
> var port = chrome.extension.connect({"name":
> "random_test_arg"});
>
> window.open(....);
> });
> });
>
> I understand I need to send a message to my background process to
> collect information I want, but how do I get this back and what's the
> right way to catch/send the info? In background.html I see this works:
>
> chrome.extension.onConnect.addListener(function(port) {
> var q;
> chrome.tabs.getSelected(null, function(tab) {
> console.log(tab);
> q = tab.url;
> });
> });
>
> And I get the correct tab object, with a url, but I have no clue how
> to send it back to my front-end function so I can open the window with
> the variables I get in my backend.
>
> Hopefully my question makes sense. I'm very close to getting it, but I
> just want to verify I'm on the right track here! :)
>
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>
>
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