Comments on: Google Chrome Extension: New Tab Redirect! STEP BY STEP

By: jimschubert

jimschubert — Thu, 01 Apr 2010 15:56:00 +0000

Tiesto: I modified the post to link to Chrome's URL Constants. There is no chrome://net-internal. This would be chrome://net-internals/ and it used to be about:net-internal (which has also changed to about:net-internals). You don't need to request any additional permissions to access this. It appears that I have a number of additional about: and chrome: pages to add to my extension to keep up with the trunk. Thanks for your question!

By: Tiesto

Tiesto — Tue, 30 Mar 2010 09:47:12 +0000

Hi!
I should take url from chrome://net-internal, it is possible?
In the manifest.json i can’t add (chrome://*) in the permissions.
There is another way?
Thanks

By: jimschubert

jimschubert — Fri, 26 Mar 2010 13:21:37 +0000

Mike, thanks for the comment! As far as interacting with the background page, the chrome API offers a method: chrome.extension.getBackgroundPage() which returns the DOMWindow of the Background Page. This means you can assign the above function to a variable in your popup.html, e.g. calling the object ‘bp’, then interact with scripts in your background page directly. So, if you have a script on your background page called ‘function stopPlayer() { }’ and you’ve assigned the background page to the ‘bp’ variable, you can call ‘bp.stopPlayer();’ from your popup.

See how I did this with the setUrl() function in Background.html, and how I access that function from options.js in the save() function.

You can access all of the chrome.* APIs here: http://code.google.com/chrome/extensions/api_index.html

I think the important thing to consider in your functionality is that your player’s logic should reside totally in the background page, and think of your popup.html as only a remote control. In other words, the popup should only have html, stylesheet, and calls to functions in the background.html. That’ll keep it lightweight and responsive for the user.

I hope that helps!

By: MikeHobo

MikeHobo — Fri, 26 Mar 2010 07:12:20 +0000

You seem to have a general grasp of this kind of stuff, I actually have very few experience with javascript at all, but I’m currently toying around with Chrome Extensions, and I am wondering as to how I could go about putting a script of javascript in my popup.html that will control something on my background.html, currently I’m testing with the JW Player and trying to have music play on the background.html page and then have popup.html controls to pause or skip through songs.