示例#1
0
 /**
  * Save stylesheet resources such as images, font files etc locally
  * Also add resources to the CHM hhp file
  * @param string $stylesheet Stylesheet data
  * @return string
  */
 protected function processStylesheetResources($stylesheet)
 {
     // Find content
     $content = preg_match_all('`url\\((([\'"]|)((?:(?!file:).)*?)\\2)\\)`', $stylesheet, $stylesheet_urls);
     // Call parent
     $stylesheet = parent::processStylesheetResources($stylesheet);
     // Add to hhp file
     if ($content !== 0) {
         foreach (array_unique($stylesheet_urls[3]) as $stylesheet_url) {
             if (FALSE !== ($parsed_url = parse_url($stylesheet_url))) {
                 $content_filename = $this->outputdir . $parsed_url['path'];
                 $relative_url = trim(substr(realpath($content_filename), strlen(realpath($this->outputdir))), DIRECTORY_SEPARATOR);
                 fwrite($this->hhpStream, 'res' . DIRECTORY_SEPARATOR . $relative_url . PHP_EOL);
                 v('Resource saved to hhp: %s.', $parsed_url['path'], VERBOSE_MESSAGES);
             }
         }
     }
     // Fix CSS in IE8
     $stylesheet = preg_replace('/([0-9\\.])rem/', '\\1em', $stylesheet);
     // Remove responsive CSS, reserve 768px to 979px
     $stylesheet = preg_replace_callback('/@media([^\\{]+)\\{(([^\\{\\}]*\\{[^\\}\\{]*\\})+[^\\}]+)\\}/', function ($matches) {
         if (strpos($matches[1], 'print') !== false || preg_match('/min-width: *([0-9]+)px/', $matches[1], $minWidth) && (int) $minWidth[1] >= 980 || preg_match('/max-width: *([0-9]+)px/', $matches[1], $maxWidth) && (int) $maxWidth[1] < 768) {
             return '';
         }
         return $matches[2];
     }, $stylesheet);
     return $stylesheet;
 }