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setTheme example

        return $this->renderer->renderBlock($view, 'form_start', $vars);
    }

    protected function renderEnd(FormView $view, array $vars = [])
    {
        return $this->renderer->renderBlock($view, 'form_end', $vars);
    }

    protected function setTheme(FormView $view, array $themes, $useDefaultThemes = true)
    {
        $this->renderer->setTheme($view, $themes, $useDefaultThemes);
    }
}

/** * @dataProvider themeBlockInheritanceProvider */
    public function testThemeBlockInheritance($theme)
    {
        $view = $this->factory
            ->createNamed('name', 'Symfony\Component\Form\Extension\Core\Type\EmailType')
            ->createView()
        ;

        $this->setTheme($view, $theme);

        $this->assertMatchesXpath(
            $this->renderWidget($view),
            '/input[@type="email"][@rel="theme"]'
        );
    }

    /** * @dataProvider themeInheritanceProvider */
    public function testThemeInheritance($parentTheme, $childTheme)
    {

'exceptionMessage' => $exceptionMessage,
            'statusText' => $statusText,
            'statusCode' => $statusCode,
            'logger' => $this->logger instanceof DebugLoggerInterface ? $this->logger : null,
            'currentContent' => \is_string($this->outputBuffer) ? $this->outputBuffer : ($this->outputBuffer)(),
        ]);
    }

    private function dumpValue(Data $value): string
    {
        $dumper = new HtmlDumper();
        $dumper->setTheme('light');

        return $dumper->dump($value, true);
    }

    private function formatArgs(array $args): string
    {
        $result = [];
        foreach ($args as $key => $item) {
            if ('object' === $item[0]) {
                $formattedValue = sprintf('<em>object</em>(%s)', $this->abbrClass($item[1]));
            } elseif ('array' === $item[0]) {

'exceptionMessage' => $exceptionMessage,
            'statusText' => $statusText,
            'statusCode' => $statusCode,
            'logger' => DebugLoggerConfigurator::getDebugLogger($this->logger),
            'currentContent' => \is_string($this->outputBuffer) ? $this->outputBuffer : ($this->outputBuffer)(),
        ]);
    }

    private function dumpValue(Data $value): string
    {
        $dumper = new HtmlDumper();
        $dumper->setTheme('light');

        return $dumper->dump($value, true);
    }

    private function formatArgs(array $args): string
    {
        $result = [];
        foreach ($args as $key => $item) {
            if ('object' === $item[0]) {
                $formattedValue = sprintf('<em>object</em>(%s)', $this->abbrClass($item[1]));
            } elseif ('array' === $item[0]) {

public function getEngine(): FormRendererEngineInterface
    {
        return $this->engine;
    }

    /** * @return void */
    public function setTheme(FormView $view, mixed $themes, bool $useDefaultThemes = true)
    {
        $this->engine->setTheme($view, $themes, $useDefaultThemes);
    }

    public function renderCsrfToken(string $tokenId): string
    {
        if (null === $this->csrfTokenManager) {
            throw new BadMethodCallException('CSRF tokens can only be generated if a CsrfTokenManagerInterface is injected in FormRenderer::__construct(). Try running "composer require symfony/security-csrf".');
        }

        return $this->csrfTokenManager->getToken($tokenId)->getValue();
    }

    private function collectInheritanceJavascript($inheritance)
    {
        $definitions = [];
        foreach (array_reverse($inheritance) as $template) {
            $definition = new JavascriptDefinition();

            $definition->setTheme($this->inheritance->getTheme($template));
            $definition->setFiles($this->inheritance->getTemplateJavascriptFiles($template));

            $definitions[] = $definition;
        }

        return $definitions;
    }

    /** * @throws Enlight_Event_Exception * @throws Exception * * @return JavascriptDefinition[] */

$this->renderer = new FormRenderer($rendererEngine, $this->createMock(CsrfTokenManagerInterface::class));
        $this->registerTwigRuntimeLoader($environment, $this->renderer);
    }

    public function testThemeBlockInheritanceUsingUse()
    {
        $view = $this->factory
            ->createNamed('name', 'Symfony\Component\Form\Extension\Core\Type\EmailType')
            ->createView()
        ;

        $this->setTheme($view, ['theme_use.html.twig']);

        $this->assertMatchesXpath(
            $this->renderWidget($view),
            '/input[@type="email"][@rel="theme"]'
        );
    }

    public function testThemeBlockInheritanceUsingExtend()
    {
        $view = $this->factory
            ->createNamed('name', 'Symfony\Component\Form\Extension\Core\Type\EmailType')

        return $this->renderer->renderBlock($view, 'form_start', $vars);
    }

    protected function renderEnd(FormView $view, array $vars = []): string
    {
        return $this->renderer->renderBlock($view, 'form_end', $vars);
    }

    protected function setTheme(FormView $view, array $themes, $useDefaultThemes = true): void
    {
        $this->renderer->setTheme($view, $themes, $useDefaultThemes);
    }
}

// Use array_reverse to compile the bare themes first.         foreach (array_reverse($inheritance) as $shopTemplate) {
            $definition = new LessDefinition();

            $definition->setImportDirectory(
                $this->pathResolver->getPublicDirectory($shopTemplate)
            );

            $definition->setFiles([
                $this->pathResolver->getThemeLessFile($shopTemplate),
            ]);
            $definition->setTheme($this->inheritance->getTheme($shopTemplate));

            $definitions[] = $definition;
        }

        return $definitions;
    }

    /** * @throws Exception * * @return LessDefinition[] */

  public function addForm(BlockContentTypeInterface $block_content_type, Request $request) {
    $block = $this->blockContentStorage->create([
      'type' => $block_content_type->id(),
    ]);
    if (($theme = $request->query->get('theme')) && in_array($theme, array_keys($this->themeHandler->listInfo()))) {
      // We have navigated to this page from the block library and will keep track       // of the theme for redirecting the user to the configuration page for the       // newly created block in the given theme.       $block->setTheme($theme);
    }
    return $this->entityFormBuilder()->getForm($block);
  }

  /** * Provides the page title for this controller. * * @param \Drupal\block_content\BlockContentTypeInterface $block_content_type * The block type being added. * * @return string * The page title. */