/**
* @see Html2Pdf::save()
* @param string $file
* @return mixed|void
*/
public function save($file)
{
if (!class_exists('\\DOMPDF')) {
}
$pdfs = array();
foreach ($this->_html as $i => $page) {
$f = '/tmp/' . StringUtils::randString(10);
$pdf = new \DOMPDF();
$pdf->load_html($page);
$pdf->render();
file_put_contents("{$f}.pdf", $pdf->output());
$pdfs[] = "{$f}.pdf";
}
$pdfMerge = Merge::factory($this->_page['merge'], $pdfs);
$pdfMerge->save($file);
}
/**
* Minify function. Returns a minified content, or writes it to a file if path is specified.
*
* @param null|string $file
* @return string|true
*/
public function compile($path = null)
{
// create a file from the given path, or a temproary resource of a max of 20 Mb
$this->res = $path ? new FileObject($path, 'w+') : new TempFileObject($this->options['tmp'] . '/' . StringUtils::randString(50));
// merge all resources in the minfier's resource
foreach ($this->resources as $handle) {
while (!$handle->eof()) {
$chunk = $handle->read(8192);
$this->res->write($chunk);
}
unset($handle);
$this->res->write("\n\n");
}
$this->res->rewind();
// return the minified text as a string or as a file
$string = null !== $path ? true : $this->res->read();
return $string;
}
/**
* Convert all the possible elements from which you can import content
* to a resource.
*
* @param string|resource $res
* @return TempFileObject
*/
protected function convertToResource($res)
{
$file = new TempFileObject($this->options['tmp'] . '/' . StringUtils::randString(50));
switch (true) {
case $res instanceof FileObject:
$file->write($res->read());
unset($res);
break;
case is_resource($res):
$file->write(stream_get_contents($res));
break;
case file_exists($res):
case filter_var($res, FILTER_VALIDATE_URL):
$file->write(stream_get_contents(fopen($res, 'r')));
break;
default:
$file->write($res);
}
$file->rewind();
return $file;
}
/**
* @return string
*/
public function compile($path = null)
{
parent::compile();
$file = $this->getMinifiedResource();
$file->rewind();
$rand = false;
if (null === $path) {
$path = $this->options['tmp'] . '/' . StringUtils::randString(50);
$rand = true;
}
$cmd = sprintf($this->options['cli_run'], $file->getPath() . '/' . $file->getFilename(), $path);
$out = exec($cmd, $output, $return);
unset($file);
if ($return) {
throw new Exception\ShellExec(sprintf('External minify tool failed executing. To understand the problem, ' . 'please try running in command line: \'%s\' ', $cmd));
}
$this->res = $rand ? new FileObject($path, 'r') : new TempFileObject($path, 'r');
// return the minified text as a string or as a file
$string = $rand ? trim($this->res->read()) : true;
return $string;
}
