<?php
/**
* Email CSS Inliner class file.
*
* @package Automattic\WooCommerce\EmailEditor
*/
declare( strict_types = 1 );
namespace Automattic\WooCommerce\EmailEditor;
use Automattic\WooCommerce\EmailEditor\Engine\Renderer\Css_Inliner;
use Pelago\Emogrifier\CssInliner;
/**
* Class for inlining CSS in HTML emails.
*/
class Email_Css_Inliner implements Css_Inliner {
/**
* The CSS inliner instance.
*
* @var CssInliner
*/
private CssInliner $inliner;
/**
* Creates a new instance from HTML content.
*
* @param string $unprocessed_html The HTML content to process.
* @return self
*/
public function from_html( string $unprocessed_html ): self {
$that = new self();
$that->inliner = CssInliner::fromHtml( $unprocessed_html );
return $that;
}
/**
* Inlines the provided CSS.
*
* @param string $css The CSS to inline.
* @return self
* @throws \LogicException If from_html() was not called first.
*/
public function inline_css( string $css = '' ): self {
if ( ! isset( $this->inliner ) ) {
throw new \LogicException( 'You must call from_html before calling inline_css' );
}
$this->inliner->inlineCss( $css );
return $this;
}
/**
* Renders the HTML with inlined CSS.
*
* @return string The processed HTML.
* @throws \LogicException If from_html() was not called first.
*/
public function render(): string {
if ( ! isset( $this->inliner ) ) {
throw new \LogicException( 'You must call from_html before calling inline_css' );
}
return $this->inliner->render();
}
}