Static images for use in admin widget

Hello,

Within an admin field widget that I am developing, I need to access a
static image from my app.

For example, I have a Google map and I would like to access
"crosshair.gif" from the apps' static folder (er, the collectstatic
folder).

Inside the widget's render() function, I have a formatted string that
contains embedded JS, and within that string I have a JS function that
looks like:

function showCrossHair(divId) {
...
div.innerHTML = '<img src="...">';
...
};

Just wondering what the best way to generically access my app's media is?

Currently, my app has static files collected to this location:

site.com/static/app/...

Just curious of the best way to handle linking of images within
widgets whilst keeping things modular?

I was thinking that I could import STATIC_URL from settings and then
do something like this:

div.innerHTML = '<img src="%(static)s/app/crosshair.gif">';

... where "%(static)s" is a reference to my STATIC_URL constant.

I don't really like the above solution because "app" is hard-coded
into the path.

Another solution might be to have a constant at the top of the widget
file that contains the path to a crosshair image:

CROSSHAIR_FROM_STATIC = 'app/crosshair.gif'

But that seems kinda funky too.

Am I making any sense here? :D

Any tips would be greatly appreciated.

Thanks!

Cheers,
Micky

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