protected function getCssContents()
{
/** @var HtmlThemeInterface $theme */
$theme = $this->theme;
// check last modification
$lastModification = 0;
foreach ($theme->getHtmlCssDependencies() as $item) {
$filename = $theme->getResourcesPath() . $item;
if (file_exists($filename)) {
$lastModification = max($lastModification, filemtime($filename));
}
}
// cache
$cacheFile = sprintf('%s/ladybug_cache/theme/%s.css', sys_get_temp_dir(), $theme->getName());
$lastModificationCache = file_exists($cacheFile) ? filemtime($cacheFile) : -1;
if ($lastModification > $lastModificationCache) {
$pce = new \CssEmbed\CssEmbed();
$css = '';
foreach ($theme->getHtmlCssDependencies() as $item) {
$file = $theme->getResourcesPath() . $item;
$minCss = file_get_contents($file);
$pce->setRootDir(dirname($file));
$css .= $pce->embedString($minCss);
}
if (!is_dir(dirname($cacheFile))) {
mkdir(dirname($cacheFile));
}
file_put_contents($cacheFile, $css);
} else {
$css = file_get_contents($cacheFile);
}
return $css;
}
