Is there a way to add a stylesheet or javascript file dynamically to a TYPO3 page which contains a plugin?

Question

Sometimes I need to add some js or css or both for a specific TYPO3 plugin. So far I included this via extension specific setup.txt like the following:

page.includeJSFooter.js = {$plugin.tx_fox_p1.settings.js}
page.includeCSS.css = {$plugin.tx_fox_p1.settings.css}

But if I add this static extension typoscript to the root template it will include the js and css on every page don't care if it is needed or not. Too avoid this I could create an extension template for every page where the plugin is placed, but when the plugin representing for example a sidebar tool and the site contains a lot of pages which uses this tool then this will be not so nice, to set an extension template for all this pages.

Maybe there is a way to add a plugin to a specific page and don't care about including css and js because it will include this dynamically and only on pages where the plugin is placed?

Maybe a typoscript condition?

Answer 1

In your controller's action you can include header parts with at least two ways:

public function yourAction() {
    // This will append each to the header
    $this->response->addAdditionalHeaderData('<script src="/foo/bar/one.js"></script>');
    $this->response->addAdditionalHeaderData('<script src="/foo/bar/two.js"></script>');

    // This will override headers with the same key, so make sure if it's absolutely unique
    // (usualy  some prefix + ext_key creates unique keys...
    $GLOBALS['TSFE']->additionalHeaderData['absolutely_unique_key'] = '<script src="/foo/bar/unique.js"></script>';
    $GLOBALS['TSFE']->additionalHeaderData['absolutely_unique_key'] = '<script src="/foo/bar/override.js"></script>';

    // your other code...

}

Answer 2

I use this code for dynamic JS loading in Extbase controller:

class ShopController extends \Vendor\Shop\Controller\AbstractController {

    /**
     * Init
     *
     * @return void
     */
    public function initializeAction() {

        $ajax = ExtensionManagementUtility::siteRelPath($this->request->getControllerExtensionKey()).'Resources/Public/JavaScripts/Ajax.js';
        $GLOBALS['TSFE']->getPageRenderer()->addJsFooterFile($ajax, 'text/javascript', FALSE, FALSE, '');

        parent::initializeAction();
    }
}