public function generateHead()
{
$cacheVersion = $this->getCacheVersion();
$cssFiles = $this->getCss();
$inDesignPreview = false;
$data = ipRequest()->getRequest();
if (!empty($data['ipDesign']['pCfg']) || !empty($data['restoreDefault'])) {
$inDesignPreview = \Ip\Internal\Design\ConfigModel::instance()->isInPreviewState();
}
if ($inDesignPreview) {
$themeAssetsUrl = ipThemeUrl(\Ip\Application::ASSETS_DIR . '/');
$designService = \Ip\Internal\Design\Service::instance();
$theme = ipConfig()->theme();
foreach ($cssFiles as &$file) {
if (strpos($file['value'], $themeAssetsUrl) === 0) {
$pathinfo = pathinfo($file['value']);
if ($pathinfo['extension'] == 'css' && $themeAssetsUrl . $pathinfo['basename'] == $file['value']) {
$themeFile = \Ip\Application::ASSETS_DIR . '/' . $pathinfo['filename'] . '.less';
if (file_exists(ipThemeFile($themeFile))) {
$file['value'] = $designService->getRealTimeUrl($theme, $themeFile);
$file['cacheFix'] = false;
}
}
}
if ($file['cacheFix']) {
$file['value'] .= (strpos($file['value'], '?') !== false ? '&' : '?') . $cacheVersion;
}
}
} else {
foreach ($cssFiles as &$file) {
if ($file['cacheFix']) {
$file['value'] .= (strpos($file['value'], '?') !== false ? '&' : '?') . $cacheVersion;
}
}
}
$cssFiles = ipFilter('ipCss', $cssFiles);
$response = ipResponse();
$data = array('title' => $response->getTitle(), 'keywords' => $response->getKeywords(), 'description' => $response->getDescription(), 'favicon' => $response->getFavicon(), 'charset' => $response->getCharset(), 'css' => $cssFiles);
$head = ipView('Ip/Internal/Config/view/head.php', $data)->render();
$head = ipFilter('ipHead', $head);
return $head;
}