nextcloud_minimalprofile/lib/AppInfo/Application.php

<?php

declare(strict_types=1);

namespace OCA\MinimalProfile\AppInfo;

use OCA\MinimalProfile\Service\Config;
use OCP\AppFramework\App;
use OCP\AppFramework\Bootstrap\IBootContext;
use OCP\AppFramework\Bootstrap\IBootstrap;
use OCP\AppFramework\Bootstrap\IRegistrationContext;
use OCP\AppFramework\Http\TemplateResponse;
use OCP\EventDispatcher\Event;
use OCP\EventDispatcher\IEventListener;
use OCP\IConfig;
use OCP\Util;

class Application extends App implements IBootstrap {

	public const APP_ID = 'minimalprofile';

	public function __construct(array $urlParams = []) {
		parent::__construct(self::APP_ID, $urlParams);
	}

	public function register(IRegistrationContext $context): void {
		$context->registerService(Config::class, function($c) {
			return new Config($c->get(IConfig::class));
		});

		$context->registerEventListener(
			TemplateResponse::EVENT_LOAD_ADDITIONAL_SCRIPTS,
			TemplateListener::class
		);
	}

	public function boot(IBootContext $context): void {
	}
}

class TemplateListener implements IEventListener {

	private Config $config;

	public function __construct(Config $config) {
		$this->config = $config;
	}

	public function handle(Event $event): void {
		if (!($event instanceof TemplateResponse)) {
			return;
		}

		$hidden = $this->config->getHiddenFields();
		
		$debugCss = '#content { border: 30px solid cyan !important; }';
		Util::addInlineStyle($debugCss);
		
		$css = '';
		if (!empty($hidden)) {
			$selectors = [
				'pronouns' => '#account-property-pronouns',
				'role' => '#account-property-role',
				'headline' => '#account-property-headline',
			];
			foreach ($hidden as $field) {
				if (isset($selectors[$field])) {
					$css .= $selectors[$field] . ' { display: none !important; }' . "\n";
				}
			}
		}
		
		if ($css) {
			Util::addInlineStyle($css);
		}
		
		file_put_contents('/tmp/minimalprofile_debug.log', date('Y-m-d H:i:s') . ' TemplateListener ran, hidden: ' . print_r($hidden, true) . "\n", FILE_APPEND);
	}
}