How to get current tab id ?

[FM]

Hi so im adding a button to the current page on, and I would like to
have the click event open a link in the current tab.

so i set the callback function of the button to send a request to my
background.html page. But when it asks for the current tab it returns
undefined. I think this is because the background.html page has no
context of a current tab selected.

I tried in the content script but they are not allowed to make
chrome.tabs* calls.

Any ideas ?

[Derek 囧]

If you want to get current tab id in Background page, then use:

chrome.tabs.getSelected(null, function(tab{
//DO WHATEVER YOU WANT BETWEEN HERE,
var id=tab.id
alert(tab.id)
//AND HERE.
}))

If you want to get current tab id in Content Script, then you can use
Port to sent message and let background page to send back the number
to content script.

Document: http://goo.gl/co9t

Be sure to add the permission "tabs" first.

-Derek

[Arne Roomann-Kurrik]

You could do this with message passing, but if all you want to do is change the URL, why not just call window.location = <url> in the button click handler?

~Arne

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