processManager = $preprocessManager; $this->blocksRegistry = $blocksRegistry; $this->settingsController = $settingsController; $this->themeController = $themeController; } private function initialize() { add_filter('render_block', [$this, 'renderBlock'], 10, 2); add_filter('block_parser_class', [$this, 'blockParser']); add_filter('mailpoet_blocks_renderer_parsed_blocks', [$this, 'preprocessParsedBlocks']); do_action('mailpoet_blocks_renderer_initialized', $this->blocksRegistry); } public function render(WP_Post $post, WP_Block_Template $template): string { $this->setTemplateGlobals($post, $template); $this->initialize(); $renderedHtml = $this->processManager->postprocess(get_the_block_template_html()); $this->reset(); return $this->inlineStyles($renderedHtml, $post); } public function blockParser() { return 'MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\BlocksParser'; } public function preprocessParsedBlocks(array $parsedBlocks): array { return $this->processManager->preprocess($parsedBlocks, $this->settingsController->getLayout(), $this->themeController->getStyles()); } public function renderBlock($blockContent, $parsedBlock) { if (!$this->blocksRegistry->hasBlockRenderer($parsedBlock['blockName'])) { return $blockContent; } $renderer = $this->blocksRegistry->getBlockRenderer($parsedBlock['blockName']); return $renderer ? $renderer->render($blockContent, $parsedBlock, $this->settingsController) : $blockContent; } private function setTemplateGlobals(WP_Post $post, WP_Block_Template $template) { global $_wp_current_template_content, $_wp_current_template_id; $_wp_current_template_id = $template->id; $_wp_current_template_content = $template->content; $GLOBALS['post'] = $post; } /** * As we use default WordPress filters, we need to remove them after email rendering * so that we don't interfere with possible post rendering that might happen later. */ private function reset() { $this->blocksRegistry->removeAllBlockRenderers(); remove_filter('render_block', [$this, 'renderBlock']); remove_filter('block_parser_class', [$this, 'blockParser']); remove_filter('mailpoet_blocks_renderer_parsed_blocks', [$this, 'preprocessParsedBlocks']); } /** * @param string $html * @return string */ private function inlineStyles($html, WP_Post $post) { $styles = (string)file_get_contents(dirname(__FILE__) . '/' . self::CONTENT_STYLES_FILE); $styles .= $this->themeController->getStylesheetForRendering($post); // Get styles from block-supports stylesheet. This includes rules such as layout (contentWidth) that some blocks use. // @see https://github.com/WordPress/WordPress/blob/3c5da9c74344aaf5bf8097f2e2c6a1a781600e03/wp-includes/script-loader.php#L3134 // @internal :where is not supported by emogrifier, so we need to replace it with *. $styles .= str_replace( ':where(:not(.alignleft):not(.alignright):not(.alignfull))', '*:not(.alignleft):not(.alignright):not(.alignfull)', \wp_style_engine_get_stylesheet_from_context('block-supports', []) ); $styles = ''; return CssInliner::fromHtml($styles . $html)->inlineCss()->render(); } }