I'm theming the admin area, but i run into trouble with popups.

I have LeftAndMainDecorator with this working code in init():

Requirements::block(THIRDPARTY_DIR . '/tabstrip/tabstrip.css');
Requirements::css('admintheme/mytheme/tabstrip/tabstrip.css');

Now I have new styled tabs. But when I have a popup from SecurityAdmin or AssetAdmin, those lines as skipped.

I thought of extending TabSet to block the default css and add my own and use:

Object::useCustomClass('TabSet', 'MyTabSet');

to substitute the original TabSet with MyTabSet.

Of course this does not work.....

Any Idea how I can change requirements in popup forms?

ok I try this now a different way by using ComplexTableField::requirementsForPopupCallback

I created an Extension to AssetAdmin and add the method requirementsForPopupCallback

function requirementsForPopupCallback(){
		Requirements::block(THIRDPARTY_DIR . '/tabstrip/tabstrip.css');
		Requirements::css(ADMINTHEME_DIR . '/css/tabstrip/tabstrip.css');
	}

if I call : AssetTableField::hasMethod('requirementsForPopupCallback'); from my lefandmaindecoraot it returns true

but it does not get called in ComplexTableField::forTemplate() where I can see this code:

// Append requirements from instance callbacks
		$parent = $this->getParentController();
		if($parent instanceof ComplexTableField) {
			$callback = $parent->requirementsForPopupCallback;
		} else {
			$callback = $parent->getParentController()->requirementsForPopupCallback;
		}
		if($callback) call_user_func($callback, $this);

if i echo $parent->getParentController() it returns AssetTableField, so I added requirementsForPopupCallback() in AssetTableField, but no joy.

How should I implement requirementsForPopupCallback ?

EDIT :: the forTemplate is in ComplexTableField_Popup