[crx] Getting a variable from popup.html, to content script.

[bryan]

I am working on an extension, where the user inputs something into a
field in the popup.html.
I want to store this with localStorage and then use the value in the
content script.
I know I can't directly communicate between the content_script and
background.html, and the documentation on code.google isn't clear ( at
least to me).
Any insight on how to pass a variable from the background.html to the
content.js?
I tried setting up a variable myVar = 'test'; and passing it with a
sendRequest but I'm not very clear on how to actually write this.
Any help would be much appreciated!

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[Mohamed Mansour]

Hi Bryan,

To pass a variable to the content script (and vice versa), you would need to use Message Passing:

http://code.google.com/chrome/extensions/messaging.html

There are numerous examples on that page (and on this group) about that.

-
Mohamed Mansour
m...@chromium.org

[TwisterMc]

I'm having issues with this too. Can someone please provide an example
that can obtain the tab URL and place it in a variable that I can use
throughout my extension?

I looked at the examples and was able to change the text in a DIV
based on ID, but I'm not sure how to get a variable that I can re-use
over and over again in my HTML.

Thanks

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[Derek 囧]

Just enter something like this:

//popup
var txt="TEXT"
chrome.extension.getBackgroundPage().chrome.tabs.getSelected(null,
function(tab) {
chrome.tabs.sendRequest(tab.id, {greeting: txt}, function(response)
{});
});

//content script
var recetxt=""
chrome.extension.onRequest.addListener(
function(request, sender, sendResponse) {
recetxt=request.greeting
});
alert(recetxt)