protected function execute(InputInterface $input, OutputInterface $output)
{
$html = $input->getArgument('html-file');
$output = $input->getOption('output-file');
$css = $input->getOption('css-file');
$disableLinkNodeProcessing = $input->getOption('disable-link-node-processing');
$removeHiddenNodes = $input->getOption('remove-hidden-nodes');
$backupNode = $input->getOption('disable-backup-node');
$inlineStyleAttributes = $input->getOption('disable-inline-style-attributes');
$appendStyleToHead = $input->getOption('append-styles-to-head');
$htmlContent = $this->fileSystem->getFileContents($html, 'Could not find HTML file \'%s\'');
$cssContent = '';
if ($css) {
$cssContent = $this->fileSystem->getFileContents($css, 'Could not find CSS file \'%s\'');
}
if ($output) {
$output = $this->fileSystem->getFilePath($output);
} else {
$output = $html;
}
if (!$disableLinkNodeProcessing) {
$cssReader = new LinkedCssImporter($htmlContent, $html, $this->fileSystem);
$htmlContent = $cssReader->getHtmlWithoutCssLinks();
$cssContent .= $cssReader->getCssFromLinkedStyleSheets();
}
$inlineProcessor = new InlineProcessor();
$inlinedHtml = $inlineProcessor->process($htmlContent, $cssContent, !$removeHiddenNodes, $backupNode, $inlineStyleAttributes, $appendStyleToHead);
$this->fileSystem->saveFile($output, $inlinedHtml);
}
/**
* @return string
*/
public function getCssFromLinkedStyleSheets()
{
$xpathDom = new \DOMXPath($this->document);
$nodes = $xpathDom->evaluate('//link[@type=\'text/css\' and @rel=\'stylesheet\' and @href]');
$css = '';
$missingPathLineNos = [];
/** @var \DOMNode $node */
foreach ($nodes as $node) {
$path = $this->fileSystem->getFilePath($node->attributes->getNamedItem('href')->nodeValue, $this->filePath);
try {
$css .= PHP_EOL . $this->fileSystem->getFileContents($path);
} catch (\Exception $exception) {
$missingPathLineNos[] = $node->getLineNo();
}
}
if (count($missingPathLineNos) > 0) {
throw new \InvalidArgumentException('Invalid Link nodes exist on line(s): ' . implode(',', $missingPathLineNos));
}
return $css . PHP_EOL;
}
